3418results about How to "Flexible layout" patented technology

The invention discloses an energy dissipation type buckling constraint support with a symmetrical initial imperfection unit at the end. The energy dissipation type buckling constraint support is characterized in that the support is composed of an end constraint segment, an energy dissipation segment and a support straight segment; and the two ends are connected with beams or column components or nodes to form a whole through bolt connection so as to achieve the purpose of improving of the resistant-lateral rigidity of components. The energy dissipation type buckling constraint support with the symmetrical initial imperfection unit at the end is adopted, and thus under the action of a small earthquake, the buckling constraint support keeps elasticity; and under the action of a medium earthquake or a severe earthquake, the buckling constraint support enters a yield stage, and the effect of a damper can further be achieved through the good hysteretic energy dissipation performance of the buckling constraint support. Compared with traditional buckling constraint supports, according to a manufacturing technology of the energy dissipation type buckling constraint support, the processes of adding a sleeve outside a core energy dissipation component, grouting and the like in the traditional manufacturing process are avoided in the manufacturing technology, so that manufacturing is convenient. The energy dissipation type buckling constraint support can be prefabricated and formed in a factory, the quality of the components is ensured, the workload of site operation is reduced, and energy conservation and environment protection are achieved.

The invention relates to an integral cabinet type water quality automatic monitoring device which comprises a communication and electric control functional area, a measurement instrument analysis functional area, a water collection and distribution functional area and a subsidiary functional area, wherein a communication control system in the communication and electric control functional area comprises a central main control module, a redundant main control module and a drive control unit having sub-functions of water collection and distribution pretreatment, measurement instrument analysis, environment control, entrance guard and safety prevention; all test instruments in the measurement instrument analysis functional area are designed by standard modularization, can be configured according to the requirement of a client and are assembled in a modularization way; in the water collection and distribution functional area, water collection and distribution and water sample preliminary treatment comprise a water sample pipeline, a flushing water pipeline, a wastewater pipeline, a rough grid filtering and sampling head, a water pump, a sand deposition device, a primary filter, a liquid level sensor, a circulation tank, a water quality probe sensor and an alga removing device; and the subsidiary functional area comprises a real-time environment monitoring module, an entrance guard and safety prevention module, an exceed-standard sample retainer and a power supply module of a fuel-fed generator.

The invention relates to a discrete keyboard layout system used in a touch screen of a portable electronic device. The system comprises a left master keyboard area, a right master keyboard area and an additional function area, wherein the additional function area is arranged between the left master keyboard area and the right master keyboard area. The invention also relates to a method for carrying out keyboard layout switching setting and dynamic zooming on the discrete keyboard layout system, an electronic device system for implementing the discrete keyboard layout system, and a method for implementing the setting control of discrete keyboard layout switching based on the electronic device system. By using the discrete keyboard layout system and setting method, corresponding portable electronic device and control method disclosed by the invention, the keyboard position layout function can be changed flexibly so as to accord with the human engineering, thereby obviously reducing the operating complexity of a user and solving the continuity problem of overall error correction of an area of a keyboard; meanwhile, an interface is friendly, the implementation procedure is simple, the application is flexible and efficient, the performance is stable and reliable, and the application range is wide.

The invention provides a large frozen soil model test system with a moisturizing function and a frost heaving test function. A moisturizing system and a refrigeration system of the model test system are arranged in a model tank box body; a loading system capable of vertically moving is arranged at the top of the model tank box body; a temperature field test device is arranged at the periphery of the refrigeration system; a frost heaving three-dimensional stress-strain test device is arranged on the inner side wall in the model tank box body; and a frost heaving and thaw collapse observation device is fixedly arranged at the top of the model tank box body. The large frozen soil model test system has the beneficial effects that a platform for scientific research is provided for researching the physical and mechanical properties of artificially frozen soil and optimizing an artificial freezing method; the large frozen soil model test system can be widely applied to freezing method construction model tests in the fields of geotechnical engineering, underground construction, traffic engineering and the like, for example, simulation tests are carried out on underground construction such as shield tunnel inlet and outlet freezing reinforcement, contact passage freezing method construction, and deep foundation pit freezing support; in addition, the natural frozen soil can also be simulated by adjusting control parameters of refrigerating machines; and large frozen soil model test system is applied to research on damages and effects on buildings and structures caused by seasonally frozen ground and frozen soil in permafrost regions.

The invention provides a surgical navigation system. The surgical navigation system comprises a world coordinate system location maker which is arranged in an operating room, first location markers, a location tracking link, and second location markers. The location tracking link comprises a plurality of positioning trackers and each of the positioning tracker is provided with one first location marker. Two second location markers are respectively arranged on a surgical instrument and a surgical imaging device. The positioning trackers are used for tracking the world coordinate system location maker, the first location markers and the second location markers. The invention further provides a medical robot. According to this arrangement, the collapse of functions of system caused by accidental movements of the positioning trackers in operation can be avoided so as to improve the safety of operation and ensure the smooth processes of operations.

The invention discloses a movable multi-rotor unmanned aerial vehicle autonomous base station system.The system comprises an autonomous base station terminal (1) and a multi-rotor unmanned aerial vehicle system (2), wherein the autonomous base station terminal (1) comprises a movable wheel undercarriage and traction system (3), an energy conversion system (4), a hangar and foldable parking apron (5) and an electric control communication management system (6), and the multi-rotor unmanned aerial vehicle system (2) comprises a multi-rotor unmanned aerial vehicle platform (7), a multisource navigation system (8), a wireless charging system (9), a data command communication system (10) and an unmanned aerial vehicle autopilot (11).By the adoption of the system, the technical problems of providing wireless charging, task planning, cluster strategy allocation, airborne audio / video data exchange and storage for a multi-rotor unmanned aerial vehicle are solved, and the autonomous collaborative work capacity, cruising ability and data transmission capacity with a ground system of multiple multi-rotor unmanned aerial vehicles are improved.

The invention discloses a wearable power-assisted exoskeleton lower limb mechanism which comprises a waist part, a left leg, a right leg, a hydraulic servo driving system, a real-time controller and a power supply module, wherein the right leg and the left leg have same structures and are respectively hinged to the waist part and symmetrically arranged on two sides of the waist part; the hydraulic servo driving system is connected with the left leg and the right leg respectively and controls the left leg and the right leg; the hydraulic servo driving system is connected with the real-time controller; the power supply module supplies power to the hydraulic servo driving system. Motions of hip joints, knee joints and ankle joints are cooperated to complete walking, and 7 degrees of freedom are totally realized; the hip joints and the ankle joints respectively have 3 degrees of freedom, which are respectively bending / stretching, external expanding / internal contraction and medial rotation / lateral rotation; the knee joints have one degree of freedom of bending / stretching. The wearable power-assisted exoskeleton lower limb mechanism is simple, convenient to wear and adjustable in length, and is suitable for being worn by people of different heights and weights and making all the joints of the exoskeleton move freely.

A multi-line laser radar comprises a first radar assembly, and the first radar assembly comprises n laser devices, an optical alignment unit, a scanning rotating mirror and a detector, wherein n is larger than 1. Each laser device is used for emitting one way of laser beam to the optical alignment unit; the optical alignment unit is used for aligning the n ways of laser beams, and the aligned n ways of laser beams are shot towards target reflection mirrors of the scanning rotating mirror; the scanning rotating mirror comprises the m reflection mirrors rotating around a rotary shaft, and the rotating plane of the rotary shaft is perpendicular to the arrangement direction of the aligned n ways of laser beams, wherein m is larger than 1; the target reflection mirrors are used for reflecting the received aligned n ways of laser beams to a detection area of the first radar assembly; and the detector is used for receiving reflected echo signals of the n ways of laser beams in the detection area. The multi-line laser radar is of a multi-emit and one-receive structure, signal crosstalk among different detectors is avoided, the working performance is improved, and the cost is lowered.

The invention belongs to the field of electric car power distribution and particularly provides a small-size automatic power exchanging station. The small-size automatic power exchanging station aims at solving the problems that an existing power exchanging station is large in land occupation area, civil engineering needs to be conducted, transportation is difficult, and full-automatic power exchanging cannot be conducted. For the purposes, the small-size automatic power exchanging station comprises a battery bin, a power exchanging platform, a power exchanging system and a control system. The battery bin is used for storing a battery and charging the battery. The power exchanging system is used for replacing a battery of an electric car with the battery of the battery bin. The power exchanging platform is used for parking the electric car and lifting the electric car through a lifting device. According to the small-size automatic power exchanging station, the electric car is lifted up through the lifting device, the power exchanging platform and the battery bin are wrapped up through a container at the same time, therefore, any civil engineering does not need to be conducted, the power exchanging station can be overall carried, the position of the power exchanging station can be arranged flexibly, and the size of the power exchanging station can be freely expanded as required.

The invention provides a camera calibration method for large field-of-view high-accuracy vision measurement and belongs to the fields of measuring and testing. According to the camera calibration method for the large field-of-view high-accuracy vision measurement, a single infrared light-emitting diode (LED) with self-adapting brightness is used as a target spot, and the target spot is fixed on a three-dimensional numerical control mechanical device and is controlled to move to a preset space position. A virtual stereo target is constructed in three-dimensional space. When the target spot reaches the preset space position, a camera subjects the target spot to image acquisition. The virtual stereo target is shot in a plurality of directions by means of freely moving the camera, so that a plurality of virtual stereo targets are distributed in calibration space of the whole camera, when the shooting of the virtual stereo target in each direction is achieved, a set of inner parameters and a set of outer parameters are calculated to serve as trailing optimized initial values. Finally, the calibration parameters of the virtual stereo target shot in multiple directions are subjected to whole optimization. The camera calibration method for the large field-of-view high-accuracy vision measurement can effectively improve the accuracy of the large field-of-view camera.

The invention relates to an electromechanical coupling transmission device of a crawler. The device comprises an engine, a power coupling and gear shifting mechanism, two motors, a power control unit and an energy storage system, wherein the two motors are connected with sun gears of two planet rows of the power coupling and gear shifting mechanism respectively, a gear ring of the two planet rowsof the power coupling and gear shifting mechanism is shared, a clutch is arranged between the two sun gears and the shared gear ring, and the shared gear ring is provided with a brake and output through a planet carrier. The transmission device removes a steering gear set and a zero shaft of double-flow transmission of the crawler, and has flexible allocation, capability of making full use of space and compact structure. Because of the power coupling and gear shifting mechanism, the requirement for the motors is reduced, and the research and manufacture risks of the motors are reduced.

The invention relates to a monitoring technology for the aquaculture environment of fresh-water fish and discloses a monitoring system for the aquaculture environment of the fresh-water fish on the basis of a wireless sensor network. The monitoring system comprises cluster head nodes connected with i nodes, wherein k cluster head nodes are connected with collecting nodes; m collecting nodes are connected with a monitoring center; and all i, k and m are natural numbers. The monitoring system is characterized in that the nodes, the cluster head nodes and the collecting nodes are configured with a water temperature sensor, a dissolved oxygen sensor, an aerator, a node processing module and a wireless transmission module. The collecting nodes also comprise an atmospheric pressure sensor, a PH value sensor and a communication module; the atmospheric pressure sensor, the PH value sensor and the node processing module are connected; and the communication module is connected with the wireless transmission module and is used for transmitting data to the monitoring center and receiving an instruction. The monitoring system disclosed by the invention can realize large-range wireless monitoring network layout, and is very suitable for automatic control of large-scale fresh-water aquaculture.

The invention discloses an automatic container system. The system comprises a rail frame, a plurality of containers, at least one container moving device, a connecting device, a movement device drive unit, a connecting device drive unit and a control unit, wherein the plurality of containers are movably arranged on the rail frame, at least one space which is used for moving and switching the container and is not less than the size of the container is left; the connecting device is used for connecting the container moving device with the container and drives the container to move. According to the automatic container system provided by the invention, the intensive arrangement of a plurality of rows of the containers without space can be realized by switching the positions of the containers, so that half of storage content can be promoted in comparison with a traditional technology; the automatic container system is matched up with an unloader so as to move out or in goods in any cell of any container, so that automatic goods entry and exit and refined goods management can be realized; and the containers and the rail frame can be freely spliced and assembled by adopting a standard cell design, so that the layout is flexible. The automatic container system is suitable for intensive storage centers, automatic storage racks in supermarkets, automatic storage cabinets, three-dimensional parking buildings, automatic container trucks, vending machines, automatic post cabinets and the like.

A servo direct-driven harmonic drive spiral bending machine comprises two symmetrically arranged power portions. Output of the power portions is achieved through planetary roller screw mechanisms, and the power portions are connected with a sliding block of the bending machine. Each power portion comprises a permanent magnetic motor portion, a harmonic wave speed reduction portion and a roller screw portion; when permanent magnetic motors are powered up, rotors directly drive harmonic generators to rotate under the action of magnetic field force and accordingly staggered tooth motions are carried out between a flexible gear and a rigid gear, speed reduction and torque increase are achieved, motions output by the flexible gear drive output shafts to rotate, the front ends of the output shafts are provided with the planetary roller screw mechanisms, and accordingly the sliding block is driven to move up and down, and a plate is bent and formed through a die on the sliding block. The mechanical-electrical integration design is adopted, the structure is compact, and equipment reliability is high; a large reduction ratio can be achieved through harmonic gears, and large forming force is provided; by means of a computer and servo control, elasticity of the plate can be predicted, and the plate can be bent and formed accurately.

The present invention of a hybrid driving device comprises an engine, a starting generator, a clutch, a speed changing mechanism, an electrical generator and an energy storage system. The energy storage system is electrically connected with the starting generator and the electrical generator. A rotor shaft of the starting generator is connected with an output shaft of the speed changing mechanism. And the output shaft of the speed changing mechanism is passed to a wheel by a transmission mechanism. Because a complicated power distributing mechanism is cancelled, the present invention of the hybrid driving device has a simple and compact structure and relatively flexible arrangement. In addition complex energy conversion does not exist, so that the energy using efficiency is high and the overall performance is good. The vehicle power performance, fuel economy performance and emission performance and other aspect are all improved.

The invention discloses a near-wall air device for preventing the high-temperature corrosion of the water-cooled wall of a power station boiler, which comprises an air duct, a regulating valve, a near-wall air box, near-wall air unit nozzles, a fuel component on-line monitor and a speed measuring device, wherein the direction of the near-wall air is parallel to the axis of a pipe of the water-cooled wall, the resistance along the course is small and the air speed reduction is slow; only one layer of near-wall air nozzles is required to be arranged in a burner area and the system structure is simple; and the nozzles are flexibly arranged, the nozzle cooling condition is good, the operational air volume is small and the stability is high. Thus, the device is suitable to be promoted for preventing the high-pressure corrosion of the water-cooled walls of power station boilers.

The invention discloses an electric car modularization power system based on parallel connection of batteries and a control method. The electric car modularization power system comprises a battery system and a motor control system, wherein the battery system comprises a power supply battery pack and a battery management system, the motor control system comprises an inverter and an inverting control module, the battery management system is used for managing, sampling and controlling the power supply battery pack, the power supply battery pack is connected to the inverter through a conducting wire, the inverter is used for inverting direct currents into three-phase electric power with adjustable voltage and frequency, which is supplied to a traction motor, and the inverting control module is used for controlling the inverter and is in communication with the battery management system through a bus; power supply batteries are connected in parallel, the power supply battery pack is divided into n groups, the n groups of batteries are respectively used for supplying power to the traction motor by adopting inverter circuits, and the motor control system is combined with the battery management system, and thus the standardization and the modularization of the power system are facilitated, and the management and the replacement of the batteries are convenient.

The invention provides a hybrid type rapid direct current breaker, comprising: a main flow branch, a current transferring branch and an energy consumption branch. All are connected in parallel. The main flow branch comprises a rapid mechanical switch unit and a main branch sub-module unit. The two units are in series connection. The current transferring branch comprises valve module units in successive cascade connection with each valve module unit comprising a plurality of semiconductor modules in series connection. The energy consumption branch comprises energy consumption components in successive cascade connection. According to the invention, the design of the breaker structure is such a design featuring the electrical topology corresponding to modularization. This means that for the application requirement of different voltage grades, the structure can be expanded to do so. As the breaker adopts a single platform supporting structure, all functional units can be integrated onto the platform, therefore, making the equipment highly integrated, small in size, and strongly resistant to earthquakes. Highly reliable and flexible in structure, better electric compatibility can be achieved. With the breaker, it is possible to rapidly cut off the current in fault when the direct current system meets a fault.

A three-dimensional interconnection method between wafers comprises the following steps that: firstly, two semiconductor wafers are bonded face to face, secondly the back of one of two semiconductor wafers is thinned to complete the three-dimensional interconnection between the wafers, thirdly the backs of the semiconductor wafers which complete interconnection are bonded spoon-fashion, thinned, and interconnected and the bonding spoon-fashion-thinning-interconnecting technique is repeated; the surfaces of a plurality of semiconductor wafers are overlaid in order. The invention also provides a three-dimensional interconnection structure between the wafers; the surfaces of two semiconductors are bonded face to face; a second connecting welding block is formed on a back underlay of one of the semiconductor wafers; a plurality of semiconductor wafers in order are overlaid on the semiconductor wafer underlay with the second connecting welding block. The method of the invention can not cause the damage to the wafer in a bonding process; a formed semiconductor wafer bonding structure can save the chip area of the semiconductor wafer.

The invention discloses a pressurization high temperature gasification method of dry coal powder. The method comprises the following five steps: the preparation of dry coal powder, the pressurization delivery of the dry coal powder, the pressurization and high temperature gasification of the dry coal powder, the cooling of high temperature crude synthesis gas and molten ash and the washing and purifying of the crude synthesis gas, and the treatment of water containing fine ash. The method is suitable for not only the bituminous coal with low ash content and low ash fusion point, but also other types of coal, which widely exist at home and abroad, have different metamorphic degrees and qualities and contain the coal with low ash content and high ash fusion point, the coal with high ash content and low ash fusion point and the anthracite, bituminous coal and lignite with high ash content and high ash fusion point. The method has good gasification index, simple equipment, flexible process configuration, low investment and operation convenience, the large-scale product is easy to realize, and the method has the beneficial effects of wide raw material application range, environmental friendliness and the like.

The invention relates to the field of production of prefabricated components, in particular to a three-dimensional production system of the prefabricated components. The system comprises a prefabricated component production area on the upper layer, a maintenance area on the lower layer and a wheel type mold table; the prefabricated component production area includes a component prefabrication operation area, a component demolding operation area and an edge mold cleaning operation area; the maintenance area is provided with a linear maintenance kiln; the components are borne on a production line in the prefabricated component production area through the wheel type mold table, and move in the linear maintenance kiln in the maintenance area; a mold table ferry transverse moving station is arranged in the prefabricated component production area; a mold table lifting transverse moving device is arranged on the mold table ferry transverse moving station; a special production line and a production secondary line are arranged in the component prefabrication operation area; and the special production line drives the wheel type mold table to transversely move through the mold table lifting transverse moving device so as to connect with the production secondary line in parallel. The system comprehensively improves a prefabricated component production system, can realize multiple production modes, is more flexible in production, and greatly improves the production efficiency.

The present invention discloses a polishing disk with internal circulated cooling, which pertains to the technical field of polishing equipment. This polishing disk mainly comprises combined polishing disk, swivel joint, internal piping system and external piping system. The combined polishing disk consists of upper disk and lower disk. On the lower disk, circular and spiral grooves are arranged, including solution feeding spiral groove and solution returning spiral groove. The two grooves are interleaved and centrally symmetric and converge on the outermost circle. At the starting point of the solution feeding spiral groove, a through threaded hole is arranged as water inlet. At the starting point of the solution returning spiral groove, a through threaded hole is arranged as water outlet. The lower disk and upper disk are connected with bolts on outer edge. Circular grooves are formed inside the combined polishing disk. The spiral circular grooves in the present invention are easily processed. As the grooves adopt a centrally symmetric structure, the dynamic equilibrium is not affected. The inlet and outlet of the cooling groove are both in the middle of the polishing disk to realize the circular cooling of the coolant that enters and leaves the polishing disk from its middle part, creating convenience for the arrangement of the piping system.

Disclosed are a carton opening method and the package opening system. The method uses a cover-opening device to open an inner carton cover where the inner carton and the outer carton are nested together; after the carton is overturned 180 degrees by a carton-overturning device, a carton-removing device will cling to the outer carton wall and meanwhile clamp the inner carton cover for uplifting, so that the outer carton driven by the inner carton cover will be vertically lifted together with the inner carton cover to be separated from the items in the carton, and the empty carton will be folded and stacked. The system comprises a transportation device (5), a carton-overturning device (10), a carton-removing device (12) and a carton folding and stacking device (15) that are sequentially arranged along the carton transportation direction; a carton-opening device (6) is arranged beside the transportation device (5). The present invention has good self-adaptive ability to meet certain sized and open seriously damaged or deformed cigarette packages, which is of good effect and reliability and will neither damage cartons, nor easily break the materials.

The invention discloses a bar-cigarette self-picking craft, which is characterized by the following: opening the cigarette box automatically; fetching cigarette pile from box; feeding material automatically through over two picking equipments; picking different kinds of bar-cigarette on respective transmission equipment according to the need of order. The invention can improve material-supplement and picking efficiency and system disposal ability, which reduces the labor strength.

The invention provides a laser radar. The laser radar comprises a laser emitting module, a light division module, a scanning module and a receiving module; the laser emitting module is used for emitting pulsed laser beams; the light division module is used for dividing the pulsed laser beams into N incident beams and transmitting the incident beams to the scanning module, wherein N is larger thanor equal to 2; the scanning module is used for reflecting the N incident beams to a three-dimensional space and receiving and reflecting N echo beams, reflected by a to-be-tested target in the three-dimensional space, of the N incident beams; the receiving module is used for receiving and processing the N echo beams; the light division module and the scanning module correspondingly form N subsidiary scanning view fields, and the N subsidiary scanning view fields constitute a total view field of the laser radar through view field splicing. By means of the laser radar, the light division moduleis utilized, light sources simply with the number smaller than N can be adopted on the premise of satisfying a scanning view field of the laser radar, the cost of the laser radar is lowered, the heatgenerated inside is reduced, and the size of the laser radar is reduced.

The invention particularly discloses a UWB (Ultra-Wide Band) based multi-information perception bioradar system and a method thereof for obtaining target information. The multi-information perceptionbioradar system comprises a transmitter system, a receiver system, an antenna system and a control and processing system, wherein the antenna system adopts the configuration of an array antenna with two transmitting antennas and four receiving antennas; the transmitter system is used for receiving a working instruction of the control and processing system, generating equally spaced step frequencycontinuous wave UWB signals on the basis of a constant-temperature crystal oscillator and sending the signals to the transmitting antennas; the receiver system is of a superheterodyne structure; a receiver sends a bioradar echo signal into the control and processing system; and the control and processing system comprises a spatio-temporal information processing module, a behavior information processing module and a physiological information processing module. Through adopting a step frequency continuous wave signal system, a multi-channel antenna array and a module information processing technique, the comprehensive perception, about the spatio-temporal, behavior and physiological information of a human body, of a bioradar is realized; and the information perception ability and the utilityvalue of the bioradar are improved.

The invention relates to a vertical lift type parking equipment, comprising a steel structure body. A plurality of automobile carrying plates and lift carriers are arranged on the steel structure body. A lift driving mechanism is arranged on the lift carrier. A cross beam of the steel structure body is provided with a cross sliding type driving mechanism, on which a roller is arranged, and a cross sliding type carrier is arranged on the roller of the cross sliding type driving mechanism at an exit layer. A longitudinal beam of the steel structure body is provided with a longitudinal movement orbit and a longitudinal movement mover is arranged on the longitudinal movement orbit at an exit and entrance layer. The automobile carrying plates are comb type automobile carrying plates and the cross sliding type carrier is provided with a comb toothed bar thereon. The parking equipment is short in parking or taking automobiles time, large in the number of parked automobiles, big in parking density, more flexible and convenient in arrangement and very strong in adaptability.

The invention discloses a double clutch type automatic gearbox, which comprises a shell of the gearbox, first and second input shafts, and first and second automatic clutches which selectively transmit the rotation of a motor to the first or second input shaft; two sides of the first and second input shafts are provided with first and second output shafts basically parallel to the first and second input shafts; driving gears arranged on the input shafts are meshed with driven gears capable of rotatably sleeved on the first output shaft and / or the second output shaft; and at least one driving gear in the driving gears arranged on the first input shaft or the second input shaft is simultaneously two driven gears on the first and second output shafts. The driving gears are shared, so the arrangement mode of the gear transmission group is changed into a parallel arrangement mode, the length of the gearbox can be greatly shortened, the gearbox can be provided with eight gears on the premise of maintaining the same dimension as a five- or six-gear gearbox, and the dynamic property, the economical efficiency and the grade of the whole vehicle are obviously improved.

The invention relates to a shock absorber device provided with shunt-wound inertial container and damping and being capable of adjusting an inertial container coefficient. The shock absorber device comprises a traditional damping shock absorber working cylinder and a hydraulic motor, wherein the damping shock absorber working cylinder is provided with a piston and a piston rod; the piston divides a hydraulic cylinder into an upper cavity and a lower cavity; a general pass valve is fixed on the piston; small holes are formed in the upper wall and the lower wall with the damping stiffness; and the two ends of the hydraulic motor are respectively connected with the upper cavity and the lower cavity of the shock absorber with the holes in the wall through a high-pressure hose pipe and a speed adjusting valve. When an external force from a vehicle body and the ground surface is applied to the piston rod in the axial direction of the shock absorber, the piston performs linear movement with respect to the cylinder body, the upper cavity and the lower cavity of the shock absorber form a pressure difference, the flow quantity of oil liquid flowing into the upper cavity from the lower cavity through the general pass valve can be changed along with the change of the pressure difference, and the flow quantity of the oil liquid flowing into the hydraulic motor remains constant through the speed adjusting valve, so that the damping effect is obtained, and the characteristic that the inertial container coefficient of the inertial container can be adjusted is realized. The shock absorber device is compact in structure and flexible to arrange.

The invention relates to a distribution method for a lower slice of a close distance coal seam group and a low slice structure. The layout method for the lower slice of the close distance coal seam group comprises the step that two roadways of one working surface are tunneled and limited at the positions, corresponding to the positions under every two adjacent mined-out areas in an upper slice of the close distance coal seam group, of the lower slice respectively. The roadways of one working surface are limited in the lower slice structure of the close distance coal seam group and located at the positions under every two adjacent mined-out areas in the upper slice of the close distance coal seam group respectively. According to the layout method and the lower slice structure, an upper-slice coal pillar arranged between every two adjacent mined-out areas is made to be located over the corresponding working surface, and a lower-slice coal limited by every two roadways in two adjacent working surfaces and the two roadways are located under the same mined-out area. Accordingly, the roadways in the lower slice are flexible in distribution, small in supporting difficulty, easy to maintain and high in mining rate.