30results about How to "Small load change" patented technology

In order to solve the problems that the good material crushing effect and cleaning easiness of an existing soybean milk machine can not be achieved at the same time, and the uniformity of the crushing effect is difficult to guarantee, the invention provides a soybean milk machine with a small-space crushing cover. According to the soybean milk machine, the unsealed small-space crushing cover is arranged on the lower portion of a lower cover of a machine head, a cutter body is located inside the unsealed small-space crushing cover, the cutter body is provided with a water pumping part which enables water in a cup body to move towards the unsealed small-space crushing cover in the rotating process, the unsealed small-space crushing cover is provided with at least one bottom feed port and a plurality of discharge ports, and the maximal permission passing size of materials on the discharge ports is smaller than the original size of materials to be crushed. According to the soybean milk machine with the small-space crushing cover, material crushing is divided into the two phases of small-space concentrated crushing and cyclic crushing, the material crushing effect is made to be greatly improved, the uniformity of the crushing effect is guaranteed, meanwhile, the small-space crushing cover can be conveniently cleaned, and the problem that the good material crushing effect and cleaning easiness can not be achieved at the same time is solved.

The invention relates to a cloud computing resource allocation method supporting sudden emergency. The method comprises the steps that 1, user resource application information including user priority,urgency degree of resource requirements, resource application quantity and configuration is acquired; 2, the user resource allocation priority is calculated; 3, resource information of a physical server is acquired; 4, the resource utilization rate of the physical server is calculated; 5, a multi-objective function with optimal performance matching of a virtual machine, shortest time provided bythe virtual machine and minimum total load change of a platform and a constraint condition are established; 6, a mapping relation of a virtual machine request and the physical server is established; 7, resource allocation is conducted. According to the cloud computing resource allocation method supporting the sudden emergency, the multi-objective function and the constraint condition are established, a multi-objective optimization algorithm is adopted for obtaining a solution set, a solution is selected as a mapping scheme, and optimal arrangement of the virtual machine can be achieved. Meanwhile, the allocation method has the function of supporting the sudden emergency and can preferentially allocate resources for sudden emergency users.

The invention belongs to the technical field of multi-axis linkage devices and particularly relates to a five-axis linkage type hybrid machine tool. The five-axis linkage type hybrid machine tool overcomes the shortcomings of traditional numerically-controlled machine tools and existing hybrid machine tools in the process of machining long and thin integral structural members. The five-axis linkage type hybrid machine tool comprises long and straight guide rails and a parallel module; the parallel module comprises a foundation platform, a movable platform and branch chains connected between the foundation platform and the movable platform; all the parts form a spatial parallel closed loop mechanism; the movable platform of the parallel module can realize two-dimensional movement in the XZ plane and two-dimensional rotation of a rotating shaft in the movable platform; the parallel module is installed on the long and straight guide rails in the Y axis direction, and an active driver enabling the parallel module to slide in the Y axis direction is additionally arranged in the Y axis direction. The five-axis linkage type hybrid machine tool integrates the advantages of traditional serially-connected machine tools and parallel machine tools, has the advantages that the work space is large, the rigidity and the accuracy are high, the drive load change is small in the Y axis direction, the dynamic performance is good, the re-configurability is high and the modularization degree is high and can realize five-axis linkage machining of the complex long and thin integral structural members.

A mobile crusher (2) is provided that can be displaced on four caterpillars and that includes a supporting frame (20), a large hopper (31), an apron conveyor (32), a sizer (34) and an intermediate conveyor (36) for use in strip-mining. The material is received by the shovel (1) of a shovel excavator or a wheel loader, is fed to the crusher (2), crushed and is then transferred onto a conveyor plant via a discharge conveyor system. The crusher (2) has to follow at the same cycle in which the shovel excavator moves forward during an advance in mining. In order to obtain a good maneuverability of the crusher (2), the two front caterpillars (22) are driven and can be steered like a two-caterpillar chassis. As the crusher (2) is subject to high loads, all components have to have a robust design. For this purpose, the individual functional groups are accommodated in a stable supporting frame (20). The crushed material is transferred onto a subsequent bench conveyor via an evolving conveyor directly connected to the mobile crusher (2), a transfer conveyor or a mobile bridge. The plant can be displaced while under full useful load.

The invention provides a soybean milk machine to solve the contradiction between the material smashing effect and cleaning of the existing soybean milk machine and the problem that the consistency of the smashing effect is hard to guarantee. A non-closed small-space smashing cover is arranged at the lower part of a head lower cover; a cutter body is positioned in the non-closed small-space smashing cover; a water pumping part which enables water in a cup body to move into the non-closed small-space smashing cover during rotation is arranged on the cutter body; the non-closed small-space smashing cover is provided with at least one material inlet formed in the bottom and a plurality of material inlets; a material block part for returning a material to the cutter body is arranged at the lower part of the non-closed small-space smashing cover. Smashing of materials is divided into two steps of intensive smashing in a small space and cyclic smashing, so that the material smashing effect is greatly enhanced, and the consistency of the smashing effect is guaranteed; meanwhile, the small-space smashing cover is more convenient to clean, so that the contradiction between the material smashing effect and cleaning is solved.

The present invention provides a baseplate comprising a cylindrical hub, a flat flange, and one or two circular notches of a "V" or "U" shape etc. formed in said flange. This baseplate has the advantages of smaller deformation and larger retention torque during swage operation. Also it is easy to make and has no further cost in production. Moreover, the present invention further provides an arm and suspension assembly equipped with the baseplate and a hard disk drive equipped with the arm and suspension assembly.

The invention discloses a steel pipe fixture for pipe saw mills, which comprises an upper clamping plate (3), a lower clamping plate (4), a left clamping plate (5) and a right clamping plate (6). The steel pipe fixture is characterized in that: the surfaces of the upper clamping plate (3) and the lower clamping plate (4), which are contacted with steel pipes (2), are cambered, moreover, the two cambers are concentric, and the difference between the diameters of the two concentric cambers is the diameter of the clamped steel pipe (2). A saw disk can simultaneously saw each of the steel pipes in a row, the downstroke of the saw disk is shortened, the sawing time is shortened, the sawing efficiency is increased, meanwhile, from the beginning to the end of steel pipe sawing by the saw disk, the area of the row of pipes sawed by the saw disk is nearly unchanged, consequently, the load change of a sawing machine is little, the impact on the saw disk is little, tooth breaking can be reduced, and the service life of the saw disk can be prolonged.

The invention belongs to the technical field of machine manufacturing and particularly relates to a large-swing angle gantry type five-axis linkage serial-parallel machine tool. The large-swing angle gantry type five-axis linkage serial-parallel machine tool overcomes the shortcomings that the swing angles of tools of traditional numerically-controlled machine tools and existing parallel / serial-parallel machine tools are limited and the flexibility is poor and the rigidity and the accuracy are low in the process of machining thin and long integral structural parts. The large-swing angle gantry type five-axis linkage serial-parallel machine tool comprises a long and straight guide rail and a parallel machining module; the parallel machining module forms a spatial parallel closed loop mechanism; the parallel machining module realizes two-dimensional movement of a mobile platform in the XZ plane and two-dimensional rotation of a rotation shaft in the plane of the mobile platform through four input drive, input drive enabling the parallel machining module to slide in the Y axis direction is added in the Y axis direction of the parallel machining module, and therefore the mobile platform of the parallel machining module can realize five-axis linkage movement. The large-swing angle gantry type five-axis linkage serial-parallel machine tool has the advantages that the structure is simple, the work space is large, the flexibility of the mobile platform is good, the rigidity and the accuracy are high, the change of drive loads in the Y axis direction is small, the dynamic property is good, the reconfigurability is high and the modularization degree is high.

The invention discloses an electrochemical polishing device and an electrochemical polishing method using the same. In the electrochemical polishing process, the calculation is performed according to the voltage change feedback of a power supply; the corresponding swing of a swing arm connected with a second nozzle is controlled according to the calculation result; and the position of the second nozzle relative to a first nozzle is adjusted along the edge of a wafer, so that the resistance in an electrical polishing loop is always kept in an original value state, the load change is low, the problem of difficult process control caused by polishing voltage change in the electrochemical polishing process can be prevented, the in-wafer uniformity after polishing is effectively improved, and the process interruption probability caused by high voltage is reduced.

The invention belongs to the technical field of multi-axis linkage devices, and specifically relates to a five-axis linkage hybrid machine tool, which solves the disadvantages of traditional CNC machine tools and existing hybrid machine tools in processing slender integral structural parts. It includes a long straight guide rail and a parallel module. The parallel module includes a basic platform, a moving platform and each branch chain connected between the basic platform and the moving platform. Each part forms a spatial parallel closed-loop mechanism. The parallel module moving platform can realize Two-dimensional movement in the XZ plane and two-dimensional rotation of the rotating axis in the plane of the moving platform. The parallel module is installed on a long straight guide rail along the Y-axis direction, and an active slide is added in the Y-axis direction to enable the parallel module to slide along the Y-axis direction. drive. The invention combines the advantages of traditional series machine tools and parallel machine tools, and has the advantages of large working space, high stiffness, high precision, small change in driving load in the Y-axis direction, good dynamic performance, strong reconfigurability and high degree of modularization, and can realize Five-axis simultaneous machining of complex and slender integral structural parts.

The invention provides a pneumatic conveyor, and belongs to the field of pneumatic conveying devices. For the problem that an existing pneumatic conveyor, especially a pressure feed type pneumatic conveyor does not have an air temperature control function, the following scheme is adopted, wherein an air compressor presses compressed air into a heat exchanger after compressing the air; and after the heat exchanger heats or cools the compressed air, the compressed air enters a feed device to bring materials into a material separator, the material separator separates the materials from waste gas, and the waste gas is discharged into a dust remover for dust removal. On the basis of the scheme, control over the air temperature is achieved, and the pneumatic conveyor is suitable for conveying of temperature-sensitive materials or materials having special requirements for temperature.

The invention discloses a seat leg support extension driving mechanism which comprises a leg support mechanism arranged on a seat framework, and the leg support mechanism is driven by an extension mechanism to reciprocate. The extension mechanism at least comprises a first rhombus extension part, a second rhombus extension part and an extension driving mechanism, the two ends of the first rhombus extension part are hinged to the leg supporting mechanism and the second rhombus extension part respectively, the second rhombus extension part is hinged to the seat framework, and the fixed end of the extension driving mechanism is connected with the seat framework; the driving end of the extension driving mechanism is hinged to the hinged position of the first rhombic extension component and the second rhombic extension component. Extension driving force is optimized to be parallel to the movement direction of the leg support mechanism, namely longitudinal arrangement, a double-screw lead screw is not needed any more, only a one-way threaded lead screw is needed, and therefore the structure is optimized, and cost is reduced. Meanwhile, the driving force of the extension mechanism is located in the middle of the extension mechanism and is close to the leg support mechanism, so that the leg support mechanism runs stably in the whole stroke.

The invention discloses an alternated fixed-bed residual oil hydrotreatment method and system. According to the method, a first hydropretreating reactor and a second hydropretreating reactor are in series connection to be served as online hydropretreating reactors, the first hydropretreating reactor is switched over and serves as a non-online hydropretreating reactor when pressure drop in the first hydropretreating reactor rises to a pressure drop design upper limit or the activity of a catalyst is lower than a required value, and then, switchover is carried out according to a sequence that the second hydropretreating reactor and a third hydropretreating reactor are connected in parallel, the third hydropretreating reactor and the first hydropretreating reactor are connected in parallel, and the first hydropretreating reactor and the second hydropretreating reactor are connected in series, so that the condition that two hydropretreating reactors are online simultaneously is achieved, and an uninterrupted hydropretreating reaction can be achieved. According to the method, the utilization efficiency of a main catalyst and the stability of device operation can be improved, and the operating time of a hydrotreating reactor is greatly prolonged.

The present invention relates to an air conditioner electronic expansion valve control method. It is characterized by that it can utilize temperature variable quantity of compressor and condenser to regulate opening angle of electronic expansion valve. Besides, said invention also provides the concrete steps of said control method.

The invention discloses an electrochemical polishing device and an electrochemical polishing method using the same. In the electrochemical polishing process, the calculation is performed according to the voltage change feedback of a power supply; the corresponding swing of a swing arm connected with a second nozzle is controlled according to the calculation result; and the position of the second nozzle relative to a first nozzle is adjusted along the edge of a wafer, so that the resistance in an electrical polishing loop is always kept in an original value state, the load change is low, the problem of difficult process control caused by polishing voltage change in the electrochemical polishing process can be prevented, the in-wafer uniformity after polishing is effectively improved, and the process interruption probability caused by high voltage is reduced.

An optical element position control mechanism includes an optical element holding member which holds an optical element of a photographing system and is guided in an optical axis direction; a drive mechanism for moving the optical element holding member in the optical axis direction; and a biasing device including an arm which is swingable about a swing axis, the swing axis being substantially orthogonal to the optical axis, and the arm extending substantially orthogonal to the swing axis and having a free end portion which engages with the optical element holding member to bias the optical element holding member in the optical axis direction.

The invention belongs to the technical field of mechanical production and manufacturing, and particularly relates to a novel four-freedom degree parallel machine tool, and solves the problems that theswinging angles of a conventional numerically-controlled machine tool and an existing parallel / series parallel machine tool cutter are limited, and during processing long and thin integral structuralmembers or processing curved surface type workpieces of which the removing capacity is high, the flexibility is poor, and the rigidity and the precision are low. The novel four-freedom degree parallel machine tool comprises a long and straight guide rail of a machine tool and a parallel processing module, wherein the parallel processing module forms a space parallel closed loop mechanism; and through four input driving, two-dimensional moving of a moving platform in the YZ plane of a machine tool coordinate system and two-dimensional rotating of a rotating shaft in an upper plane of the moving platform of the machine tool are realized by the parallel processing module, so that four-freedom degree movement of the moving platform of the parallel processing module is realized. The novel four-freedom degree parallel machine tool disclosed by the invention has the advantages of being simple in structure, large in working space, high in rigidity precision, good in dynamic performance, highin reconfigurability and the like; and the moving platform is good in flexibility, and driving load in Y-axis direction is small in changes.

The invention designs a control method of a microscope light source. Multiple power sources supply power to LEDs of different wavelengths. A dummy load and a high-speed changeover switch are added toan adjustment control circuit. When it is necessary to switch the light sources of different wavelengths, an LED constant-current and power supply circuit required to be turned off is switched to thedummy load, and an LED constant-current and power supply circuit required to be turned on is switched to the LED, thereby reducing the load variation of each constant-current circuit and a power supply, and further increasing the switching speed and improving the stability of the light source.

A deburring and chamfering tool, characterized in that: the tool has a bidirectional expansion-and-contraction mechanism configured from a first spring and a second spring; each of the first spring and the second spring has a spring constant K (N / mm) that satisfies the relationship K <= F0.H / delta L, where F0 is the standard setting load (N), H is the load change value (%), and delta L is the length-direction change value (mm); and H is 10% or less.

The invention provides a soybean milk making method of a soybean milk maker, and aims to solve the problems of a contradiction between the material smashing effect and the cleaning easiness of the existing soybean milk maker and difficulty in guaranteeing the consistency of the smashing effect. According to the soybean milk maker, a non-closed small-space smashing cover is arranged at the lower part of a lower machine head cover; a cutter body is positioned in the non-closed small-space smashing cover; a water pumping part capable of rotating to make water in a cup body move towards the non-closed small-space smashing cover is arranged on the cutter body; the non-closed small-space smashing cover is provided with at least one bottom material inlet and a plurality of material outlets; only such a material with the maximum size less than 8 mm is allowed to pass through each material outlet. The soybean milk making process of the soybean milk maker comprises two stages: namely intensive smashing and cyclic smashing. According to the soybean milk making method, smashing of materials is divided into intensive smashing in a small space and cyclic smashing, so that the material smashing effect is greatly enhanced, and the consistency of the smashing effect is guaranteed; meanwhile, the small-space smashing cover is more convenient to clean, and the contradiction between the material smashing effect and the cleaning easiness is solved.

The invention belongs to the technical field of vehicle power drive, and relates to a regenerative braking stepless transmission for vehicles. A hydraulic accumulator, an electromagnetic switch valve, a variable pump-motor and a variable motor-pump are used for performing power transfer and conversion, confluence and shunting, so that the stepless transmission with the regenerative braking function is formed. The driving force generated from regenerative braking can start engines and drive the vehicles. The stepless transmission enables the engines or electric motors to be mainly operated in areas with the optimal economic working condition, the installed power of the engines is reduced, the volume of a power transmission system is reduced, the efficiency of the power transmission system is improved, and at the same time, the regenerative braking function is achieved. The structure of the regenerative braking stepless transmission is compact, the cost of the transmission system is reduced, the supported technology is mature, and the regenerative braking stepless transmission is suitable for buses, passenger vehicles, trucks, engineering machinery and the like, and has wide application fields and market prospects.

The invention belongs to the field of oil field extraction equipment, and particularly relates to a novel mechatronical low load oil pumping machine. A rotating shaft of the motor is connected with a belt pulley; the belt pulley and a driving wheel are respectively connected with a reducing motor, and are respectively positioned at the two ends of the reducing motor; the driving wheel and a driven wheel are connected through a rope; the driven wheel is connected with a first guide wheel through the rope; the first guide wheel is connected with a fixed pulley through the rope; the fixed pulley is connected with a second guide wheel through the rope; the second guide wheel is connected with a pumping rod through the rope. The novel mechatronical low load oil pumping machine has the benefits that a walking beam and a suspension beam are not needed to be driven to act by the motor, the overall structure of the machine is simple, the mass is reduced, so that the load of the motor is reduced, the energy consumption is less, the oil pumping efficiency is high, and the requirements of energy conservation and consumption reduction development are met.

The invention relates to a processing system and a processing method for dealing with line electric leakage in direct current lighting power supply, the processing system for dealing with line electric leakage in a direct current lighting power supply system is composed of a direct current power supply cabinet, a power supply cable, a DC-DC driver and a lamp, and the DC-DC driver converts input direct current into voltage and current required by the lamp. The DC-DC driver comprises an MCU microprocessor, and an input voltage detection circuit, a PWM conversion circuit, a PWM control circuit, an input end fault feedback circuit and an output end fault feedback control circuit which are connected with the MCU microprocessor. Because the direct current system is sensitive in protection, overload protection of the direct current system is easily caused by line leakage, and a lamp is turned off. According to the invention, the DC-DC driver detects the input voltage, the output power is adaptively adjusted, and the load change of the DC power supply cabinet is reduced by reducing the load power of the lamp when the line leaks electricity, so that the overload protection probability of the DC power supply cabinet is greatly reduced.

The invention relates to an adaptive soybean milk making machine which comprises a machine head, a cup body, a motor, a pulverizing tool, a pulverizing hood and a control device, wherein the machine head is buckled on the cup body; the motor is electrically connected with the control device; the motor drives the pulverizing tool to rotate; the pulverizing tool is positioned in the cup body; the pulverizing hood is fixed on the machine head and comprises a material inlet and a material outlet; the material outlet of the pulverizing hood comprises more than one slot / hole, and the wall edge forming each slot is flexible; the material outlet extrudes the wall edge to adjust the size of each slot / hole in a soybean milk making process; the area of each slot / hole is S; the deformation range of each slot / hole is from 0 to 3S. Compared with the prior art, the adaptive soybean milk making machine disclosed by the invention has the advantages that materials with large particle sizes can extrude the slots / holes in a pulverizing process to make the slots / holes deformed; therefore, the materials with large particle sizes can be successfully discharged from the material outlet, and cannot block the material outlet; the material circulation is smoother, so that the pulverizing efficiency is improved.

The invention discloses an alternate fixed bed residual oil hydrotreatment method and system. The method comprises a hydrogenation pretreatment reaction zone, a hydrogenation treatment reaction zone and a catalytic cracking reaction zone; the hydrogenation pretreatment reaction zone comprises a first hydrogenation pretreatment reactor, a second hydrogenation pretreatment reactor and a third hydrogenation pretreatment reactor; the first hydrogenation pretreatment reactor and the second hydrogenation pretreatment reactor are connected in series to serve as an online hydrogenation pretreatment reactor; and when the pressure drop in the first hydrogenation pretreatment reactor rises to the pressure drop design upper limit or the catalyst activity is lower than the requirement, the first hydrogenation pretreatment reactor is cut out, and switching is performed according to the following sequence: the second hydrogenation pretreatment reactor and the third hydrogenation pretreatment reactorare connected in parallel, the third and the first hydrogenation pretreatment reactors are connected in parallel, and the first hydrogenation pretreatment reactor and the second hydrogenation pretreatment reactor are connected in series. The method can realize long operation time without shutdown, ensures reasonable and limited alternate times, improves the utilization efficiency of the hydrotreating main catalyst and the operation stability of the device, and greatly prolongs the operation time and the working efficiency of the hydrotreating reactor.