228results about How to "Guarantee work efficiency" patented technology

The invention discloses a robot collision detecting system and method, a storage medium and an operation system. The collision detecting system comprises a motion instruction module, a dynamic module,a state feedback module and a collision predicating module, wherein the motion instruction module is used for performing motion control on a robot; the dynamic module is used for performing dynamic modeling and system identifying on the robot according to characteristics of the robot, and solving a dynamic equation; the state feedback module is used for obtaining position data, speed data and force moment data of each joint of the robot; and the collision predicating module is used for predicating collision external force, a force acting point and a collision type according to the robot dynamic equation, and the position data, the speed data and the force moment data of each joint of the robot. Based on collision detection of current ring feedback, the robot collision detecting system canreduce complexity and cost of a robot structure, can detect whether a user collides or not when the robot works, and safety of the user when the robot and the user are effectively guaranteed to be cooperatively work.

The invention discloses an ultrasonic targeted electric flower and fruit thinning machine, which comprises a working frame, a rotating shaft, a flower and fruit thinning adhesive tape set, an ultrasonic sensor set, a flower and fruit thinning motor, an angle adjusting mechanism, a telescopic rod and a control mechanism, wherein the working frame is in a frame structure with one open side; the open side of the working frame is provided with the rotating shaft; the flower and fruit thinning adhesive tape set is arranged on the rotating shaft; one end of the rotating shaft is provided with the flower and fruit thinning motor; the working frame is provided with the ultrasonic sensor set; the angle adjusting mechanism and the telescopic rod are arranged on the end face below the open side of the working frame respectively; and one end of the telescopic rod is connected with the working frame, the other end of the telescopic rod is a handheld end, and the handheld end is provided with the control mechanism. The flower and fruit thinning machine can realize automatic target detection, and has wide operation range, humanized design, high operation efficiency and strong fruit tree applicability.

The invention discloses a sewage treatment pool feeding apparatus for water plants. The sewage treatment pool feeding apparatus comprises a feeding pipe, wherein a mixing cavity is arranged in the feeding pipe, the left portion and the right portion of the mixing cavity are communicated to each other, and the mixing cavity is slidably connected to fixing devices symmetrically arranged left and right. According to the present invention, the structure similar to the triangular chuck is used to fix the pipes with different diameters so as to enhance the use range of the equipment; the self-adjustable closed ring is formed through the limitation of the spring and the sling groove so as to ensure the sealing property at the interface of the equipment; according to the impart force on the waterflow, the faster the water flow, the faster the stirring; the amount of the agent taken out of the agent box every time is a constant value, and only the number of the opening per unit time is increased, such that the proportion of the total feeding is increased; and by using the principle of centrifugation, the faster the rotation, the larger the injection volume per unit time, such that the workefficiency of the treatment is ensured.

The invention discloses a periphery driving sludge sucking and scraping machine for sewage treatment. The periphery driving sludge sucking and scraping machine for sewage treatment includes a sedimentation tank and a dehydration device. A control switch block is installed on the side of the sedimentation tank, a driving device is installed at the top of the sedimentation tank, a cross beam is fixed at the top of the driving device, and the cross beam is in rotating connection with the bottom of the sedimentation tank through a rotating mechanism. The periphery driving sludge sucking and scraping machine for sewage treatment provided by the invention utilizes a lifting mechanism to adjust the sludge scraping thickness of a sludge scraping plate, avoids the overload work of a driving devicecaused by an excessive sludge scraping thickness of the sludge scraping plate, guarantees the service life of the sludge sucking and scraping machine, adjusts the working angle of the sludge scrapingplate through an angle adjustment device, is convenient for cooperating with the driving device to undergo reciprocating sludge scraping operation, thus greatly improving the sludge scraping efficiency, a walking mechanism is employed for walking operation and ensures the operation stability of the sludge sucking and scraping machine, and a cleaning device is employed for cleaning of the sludge scraping plate, the cleaning is convenient, and is time-saving and labor-saving.

The invention discloses a safe and dust-proof pipe cutting machine, which includes a workbench, rollers and a pipe gripper. The connection between the rod and the fixed foot is provided with a fixed bolt, the left end of the workbench is provided with a screw rod, and the right side of the screw rod is provided with a moving slider; the existing pipe cutting machine is provided with a clamping slider , Rotate the fixed clamp, move the slider and rollers, use the clamp slider to cover the pipe, and fix the pipe with the rotating fixed clamp to avoid the pipe head flying out when cutting the pipe head, and use the moving slider to easily and conveniently adjust the measurement of the pipe length, use the rotation of the roller to make the workpiece roll together, no large amount of debris will be generated during cutting, the incision is smooth and flat, no need for secondary polishing, reducing processing costs, and avoiding debris splashing into the eyes, ensuring the safety of operators Personal safety, eliminating potential safety hazards.

In the present invention, the circuit includes sampling unit, detection unit, output unit and executing unit. A transformer is connected between the sampling unit and the detection unit, the AC wave generator circuit in the secondary side provides drive current and the AC voltage in the primary side is applied across the detection electrodes. The detection unit includes current-to-voltage converter circuit, rectifier and filter circuit, comparator circuit, and executing circuit to send out signal. The present invention has simple structure, small size, less error action. The detection circuitand the tested circuit are separated electrically and this can protect the detector, avoid interference, avoid the damage of the detection electrodes, increase their service life, and monitor the tested environment in real time.

The invention discloses a clamping device made of epoxy resin insulating materials. The clamping device comprises a clamping frame and a clamping plate. The clamping frame comprises a lower transverse plate, an upper transverse plate and a vertical plate through which the upper transverse plate and the lower transverse plate are connected. The clamping device is made of the epoxy resin insulating materials and is easy and convenient to use, easy to operate and high in flexibility. The clamping device can be used for fixing fuse tubes and disconnecting link moving contacts reliably through screw adjustment and can avoid the situation that arc light caused by sudden falling off of the fuse tubes and the disconnecting link moving contacts does harm to staff and equipment. The clamping device improves safety of hot-line working staff and the equipment greatly, reduces labor intensity of the working staff greatly, guarantees safety of the working staff and the equipment greatly, shortens operating time greatly and guarantees working efficiency effectively.

The invention discloses a cotton feeding device with an improved structure for a carding machine, and belongs to the technical field of non-textile machinery. The carding machine comprises a carding machine frame, a cotton opening roller and a cotton uniformizing roller; the cotton feeding device comprises a cotton feeding roller, a cotton feeding roller cover, a cotton pressing roller, a pair of cotton feeding roller cover adjusting mechanisms and a transitional transmission shaft; the cotton feeding roller is supported on a cotton feeding roller supporting wall plate; the cotton feeding roller cover is correspondingly arranged above the cotton feeding roller; the cotton pressing roller is supported on the cotton feeding roller cover; the pair of the cotton feeding roller cover adjusting mechanisms is arranged on the carding machine frame; the transitional transmission shaft is connected with the pair of the cotton feeding roller cover adjusting mechanisms; the cotton feeding device is characterized in that a cotton feeding roller cover strengthening web plate is arranged in the length direction of the cotton feeding roller cover; a tensioning wheel seat is fixed to an end surface enclosing plate of the cotton feeding roller cover and corresponds to the right side of a guide rail seat; a tensioning wheel is rotatably arranged on the tensioning wheel seat. The adjustment time is shortened; the work efficiency of the carding machine is improved; the overall adjustment effect of the cotton feeding roller cover is ensured; the work intensity is reduced; the influence on the cotton feeding effect caused by generating deflection is avoided; the structure is simplified; the movement effect of a transmission chain of the cotton feeding roller is ensured.

The invention relates to a down filling head with an improved structure, and belongs to the technical field of filling equipment for down products. The down filling head comprises an outer sleeve pipe, an air return pipe and a down filling pipe, wherein one end of the outer sleeve pipe is provided with a down outlet pipe in a contraction way, the cavity of the down outlet pipe is communicated with the cavity of the outer sleeve pipe, the other end of the down outlet pipe is provided with the fixed flange disc of the outer sleeve pipe, one end of the air return pipe is inserted into the cavity of the outer sleeve pipe, the pipe wall of one end of the air return pipe is provided with an air return hole, the other end of the air return pipe extends out of the cavity of the outer sleeve pipe, the down filling pipe is positioned in the cavity of the air return pipe, a down outlet at one end of the down filling pipe extends out of the cavity of the air return pipe, and the down outlet is correspondingly communicated with the cavity of the down outlet pipe. The down filling head is characterized by also comprising an automatic cleaning mechanism of the air return pipe, wherein the automatic cleaning mechanism is arranged at the other end of the air return pipe, the other end of the air return pipe is provided with a pneumatic pipeline valve joint, and the pneumatic pipeline valve joint is provided with a pneumatic pipeline valve. The down filling head has the advantages that the labor strength of workers is obviously reduced, and the working efficiency of a down filling machine is ensured.

The invention discloses a plastic rubbish crushing device. The device comprises a conveying mechanism, a feeding mechanism, a crushing mechanism and a discharging mechanism. The feeding mechanism comprises a feeding cylinder, a shaft body in the feeding cylinder, a spiral blade on the shaft body, a pretreatment part at the lower end of the shaft body, and a first driving part used for driving theshaft body to rotate, wherein the feeding cylinder is provided with an upper opening and a lower opening. The spiral blade is matched with the inner wall of the shaft body. Plastic rubbish enters thefeeding cylinder and is conveyed downwards through the rotating blade, some excessively large plastic rubbish is simply crushed through the pretreatment part when the plastic rubbish is conveyed to the bottom of the feeding cylinder, then the plastic rubbish is evenly conveyed to the crushing mechanism for processing, and the situation that crushing rollers are stuck due to uneven feeding and accordingly the work efficiency is affected is prevented.

The invention discloses an environmental-friendly automobile tail gas emission device which comprises an exhaust pipe; a gas inlet pipe is arranged on one side of the exhaust pipe; a tail gas processor is arranged at one end of the gas inlet pipe; a hydraulic driver control button is arranged on the top of the tail gas processor; an electromagnet is arranged on the inner side of the tail gas processor; a rubber wiping ring is arranged at the bottom of the electromagnet; a transmission telescopic rod is arranged on one side of the rubber wiping ring; a hydraulic driver is arranged on one side of the transmission telescopic rod; a tail gas filter is arranged on the other side of the tail gas processor; an exhaust blower is arranged on one side of the tail gas filter; the exhaust pipe is arranged on one side of the exhaust blower; and an anechoic tile is arranged on the inner side of the exhaust pipe. According to the environmental-friendly automobile tail gas emission device, the tail gas processor and the tail gas filter can lower harmful substances in tail gas; the anechoic tile in the exhaust pipe can effectively lower noise generated by the automobile tail gas exhaust pipe; with detachable parts, the device is more convenient to use; and the rubber wiping ring can clean the surface of the electromagnet.

The invention provides a call processing method and device, a server, a storage medium and a system, and belongs to the field of communication. The method comprises the steps that the call processingprocess of an artificial intelligence AI robot is monitored in real time, an interactive text of a call is obtained, and the interactive text comprises a user question recognition result and a question reply; a service level value of the AI robot for the call is obtained based on the interactive text; and when the service level value meets a first preset condition, intervention operation is performed on the call through target agent equipment. According to the invention, the service level of the AI robot is evaluated; when the service level value meets a preset condition, the manual service agent is automatically triggered to intervene, the manual service agent only assists the call processing process of the AI robot, and the problem that the manual service agent occupies too long time when directly undertaking the call is solved, so that the working efficiency of the manual service agent and the overall service level of the system are guaranteed, and the call processing efficiency isimproved.

The invention relates to the technical field of painting devices, in particular to an auxiliary painting device for automobile parts. The auxiliary painting device for the automobile parts is easy to move, and working environment and working efficiency are guaranteed. The auxiliary painting device comprises a bottom plate, a placing frame, a painting tank, a conveying pipe and a spraying gun, four groups of landing legs, four groups of rollers and a working box, wherein a controlling pump is arranged on the conveying pipe, a working cavity is formed in the working box; a taking-placing opening is formed in the side wall of the working box, and a blocking cover is arranged at the position of the taking-placing opening; the placing frame comprises a left connecting plate, a left threaded pipe, a left threaded rod, a right connecting plate, a right threaded tube, a right threaded rod, a supporting plate, a lower rotating shaft, a supporting plate, a fixing plate, an upper rotating shaft and a top plate; and a left placing groove and a right placing groove are correspondingly formed in the top ends of the left connecting plate and the right connecting plate, a left rolling ball bearing and a right rolling ball bearing are correspondingly arranged in the left placing groove and the right placing groove, a lower placing groove is formed in the middle of the top end of the supporting plate, a lower rolling ball bearing is arranged in the lower placing groove, and an upper placing groove is formed in the bottom end of the top plate.

The invention relates to the related technical field of metal machining numerical control machine tools, in particular to a metal machining numerical control machine tool convenient to maintain. The machine tool comprises a workbench, wherein supporting legs are inserted in the corners of the bottom of the workbench respectively, a supporting base is fixedly connected to one side of the top of the workbench, a lifting mechanism is arranged on the inner side of the supporting base, a connecting frame is arranged at the top of the lifting mechanism, an auxiliary mechanism is arranged on the inner wall of the connecting frame, the connecting frame is in an L shape, a supporting column is fixedly connected to the bottom of the connecting frame, a disc is rotationally connected to the position, close to the lower portion, of the outer side of the supporting column in a sleeving mode, a plurality of storage through holes are annularly formed in the inner side of the disc at equal intervals, and elastic mechanisms are disposed on the inner sides of the plurality of storage through holes respectively. According to the machine tool, a drill bit of the metal processing machine tool can be repaired and maintained, the drill bit can be conveniently replaced and rapidly installed, and then machined metal filings can be collected to be conveniently recycled in the later period.

The invention discloses a fruit-and-vegetable cultivating frame saving water resources. The fruit-and-vegetable cultivating frame comprises a fixing frame, a water pump is arranged on one side face ofthe fixing frame, a first water delivering pipe is fixedly communicated to the top of the water pump, a second water delivering pipe is fixedly communicated to the end, away from the water pump, of the first water delivering pipe, the end, away from the first water delivering pipe, of the second water delivering pipe penetrates through the outer surface of the fixing frame and extends inside thefixing frame, the top of the second water delivering pipe is fixedly connected with the inner top wall of the fixing frame, a stepper motor is arranged on the side face, away form the water pump, of the fixing frame, a rotating rod is fixedly connected to the output end of the stepper motor, the end, away from the stepper motor, of the rotating rod is sleeved with a first gear, the inner wall of the first gear is fixedly connected with the outer surface of the rotating rod, and the outer surface of the first gear is sleeved with a rack. The fruit-and-vegetable cultivating frame saving the water resources has the advantages that the structure is simple, the photic angles of fruits and vegetables can be adjusted, and water recycling is achieved.

The invention relates to the technical field of raw material moisture treatment equipment for feed production, in particular to a raw material moisture treatment device with a quantitative treatment structure for feed production. The raw material moisture treatment device comprises an outer support frame, wherein a pretreatment mechanism is fixedly mounted at the top of the outer support frame and comprises an extrusion assembly, the extrusion assembly comprises a filtering hopper, filtering through holes are evenly formed in the bottom of the filtering hopper, and a pressing plate is inserted into the filtering hopper. According to the device, after a quantitative barrel is filled with feed raw materials, two groups of blocking plates move to be closed, a third contact sensor makes contact with a first contact sensor, an electric sliding rail is controlled to drive a door plate to move to be opened, so that the device conducts quantitative intermittent feeding into a drying mechanism, blockage caused by continuous conveying of the raw materials in a drying cylinder is effectively avoided, the stability of the device during moisture treatment is guaranteed, and the working efficiency is guaranteed conveniently.

The invention discloses a numerical control four-axis vertical milling machine based on the wheel pushing angle distance of a relying key for adjusting a milling head groove. The numerical control four-axis vertical milling machine structurally comprises a milling head motor frame, an industrial control display, an anti-splashing baffle plate, a machining groove table, a stepping motor, a key position adjusting device, a thick vertical frame plate and a square base. According to the numerical control four-axis vertical milling machine based on the wheel pushing angle distance of the relying key for adjusting the milling head groove, the machining groove table is matched with the key position adjusting device, so that after the relying key is worn, emergency operation of temporary enduranceshort-time transmission operation is achieved, so that time is conveniently reserved for preparing a new relying key, and the machining progress is not delayed; the material and thickness of a semicircular key ring plate are fully used, so that waste of part materials due to frequent replacement after preliminary wear is avoided; and then the machining groove table at the bottom of the bearing milling head motor frame is also adjusted by an angle distance adjusting plate, so that a press attaching angle distance adjustment effect of a pointer clamping moving plate with horizontal surface andvertical surface gear engaging is formed, the machining effect of the four-axis linkage three-dimensional coordinate milling machine with transverse double shafts and longitudinal double shafts is guaranteed, and the working efficiency of a machine table is guaranteed by fully using the adjusting performance of the relying key.

The invention discloses a monitoring system of a new energy automobile charging pile, relates to the technical field of electric automobile charging, and solves the technical problem that an existing scheme cannot accurately judge excess and lack of intelligent charging piles in a specific area. Comprising a processor, a fault diagnosis module, a data center module, a flow analysis module, a comprehensive analysis module, a global management module and a data storage module. According to the invention, the fault diagnosis module is arranged, so that the intelligent charging pile which works abnormally can be found in time, the working efficiency of the intelligent charging pile can be guaranteed, and meanwhile, a data basis is provided for the comprehensive analysis module; the system is provided with the flow analysis module which provides a basis for the judgment of the state of the intelligent charging pile in a monitoring area, and provides data support for the comprehensive analysis module. According to the invention, the comprehensive analysis module is arranged, so that the intelligent charging piles can be maintained in time, and the intelligent charging piles in the monitoring area can be added and removed in time.

The invention relates to a crossing method for transmission line tension stringing construction. The method comprises the steps that 1) a pay-out pulley is arranged; 2) a guide wire rope is unfolded;3) a load wire rope is unfolded; 4) a wire is unfolded; 5) wire tightening is carried out; 6) an insulator string is arranged, and the pay-out pulley which carries the wire is connected with the insulator string; 7) wire suspending is carried out; and 8) the pay-out pulley is removed, and the wire is fixed on the insulator string. The method provided by the invention is used in the crossing construction of a transmission line. In a pulling process, the overall height of a curve is increased without increasing the unfolding tension of the guide wire rope, the load wire rope and the wire; wire rubbing or touching of crossed power lines, railways, highways, the crossing frames and the like during the pulling process is avoided; the construction safety is ensured, and at the same time the surface quality of the wire is ensured; and the work efficiency is improved.

The invention discloses an airborne radar master control software framework design method, an airborne radar and computer equipment. The method comprises that: the airborne radar adopts a hardware unified description language; unified information message formats of data and control information are provided among various processors on a heterogeneous processor platform; a unified hardware access interface mode is provided for each module; and a drive layer is designed; according to the designed drive layer, a packaging communication protocol is adopted, the differences with different system communication mechanisms and communication modes are shielded, anda message-only instantaneous communication mode is provided for an application layer; and an intermediate layer is designed, and the application layer is designed by adopting a mode of changing application tasks by modifying parameters on the basis of software task requirements according to the designed intermediate layer. In this way, reusability, replaceability and expandability of airborne radar software functions can be achieved.

The invention discloses a cloud and fog mixed path determination method for medical big data, and mainly solves the problems of high communication load and high task processing time delay of a traditional cloud center type medical big data processing mode. According to the scheme, a medical big data task is constructed into a directed acyclic graph composed of a plurality of subtask nodes with clear input and output relations; through a cloud-fog hybrid network architecture, a fog calculation layer is formed by using network devices such as a switch and a router in a hospital, and medical bigdata task calculation is completed step by step by using calculation power of fog nodes in an end-to-end directional data transmission process; and setting a path calculation mapping rule, mapping thebig data in the directed acyclic graph form to a hospital fog network topological graph, and searching an optimal mapping path for task data. According to the invention, the task processing time delay of the medical big data is effectively reduced, the working efficiency of doctors is ensured, and the method can be used for medical management oriented to the medical big data and early warning ofdiseases.

The invention discloses a sludge reduction method by using ozone. The sludge reduction method comprises the following steps of (1) filtering of sewage; (2) aeration treatment of sewage; (3) settling and separation of the sludge; (4) ozone treatment of the sludge. The sludge reduction method has the advantages that the structure is simple, and the practicality is strong; by utilizing the ozone technique, the net sludge increasing amount is equal to the inorganic sludge amount in the sewage treatment process, so that the purpose of reducing the remained sludge is realized; in addition, the working efficiency is high, the energy loss is low, the secondary pollution is avoided, the reduction effect of the sludge is obvious, and the comprehensive utilization rate is effectively improved.

The invention relates to the technical field of residue conveying equipment for building construction, in particular to a building solid residue conveying device with a separation structure for building construction. The building solid residue conveying device comprises a conveying part, the conveying part comprises a support frame, the left side and the right side of the support frame are symmetrically and rotatably connected with conveying rollers, and the outer sides of the two sets of conveying rollers are sleeved with a conveying belt; and the two sets of conveying rollers are in transmission connection through a conveying belt, and the outer side of one set of conveying rollers is fixedly connected with a first servo motor. According to the building solid residue conveying device, dust particles in residues and waste are separated and flushed out through water mist flushing, the residues and waste are conveniently recycled, the middle positions of the conveying rollers are arranged to be in a concave shape, the middle position of the conveying belt is made to be concave downwards, water flow is conveniently collected and guided, the water flow is effectively prevented from overflowing at will, and in cooperation with rotary stirring of a wheel cylinder, it is guaranteed that the device comprehensively removes dust particles.

The invention discloses a nested type electronic hoist scale counterweight loading system comprising an outer ring weight group, an inner ring weight group, an outer ring weight driving mechanism andan inner ring weight driving mechanism; the inner and outer ring weight groups are made to order according to electronic scale detection requirements, up and down displacement of the weight groups iscontrolled via an electric motor so as to realize electronic hoist scale weight loading effects, complex manual operation of a traditional loading mode is not needed, and security and work efficiencycan be ensured. The inner and outer ring weight groups are adopted at the same time; compared with a traditional single weight group mode, the mode of the inner and outer ring weight groups is advantageous in that a large number of weight points are available to choose from, safety can be improved while height of a weight mechanism is reduced properly, and loading work efficiency is improved via synchronous inner and outer ring loading.

The invention relates to a tower crane lifting amplitude variation process state management and control system and method based on dynamic data acquisition. The system comprises an electrical monitoring and remote debugging unit, a tower crane running state monitoring unit, a tower crane lifting amplitude variation action dynamic control unit and a display screen. According to the tower crane lifting amplitude variation process state management and control system and method based on dynamic data acquisition, comprehensive state monitoring including an electrical system can be conducted on a tower crane, monitored video data tower crane state data parameters are remotely transmitted to a remote management platform so that a user can check the data in real time, and tower crane frequency converter parameters can be modified according to actual requirements; and an intelligent control method and multiple operation modes can be provided for the tower crane lifting amplitude variation process, in the tower crane working process, interference control is conducted on the tower crane lifting amplitude variation action when lifting amplitude variation operation control is improper so that the dangerous state of the tower crane can be reduced or even eliminated, the safety guarantee is provided for the tower crane while the working efficiency of the tower crane is guaranteed, and the working safety and the intelligent level of the tower crane are greatly improved.

The invention discloses an automatic feeding mechanism for a furnace and belongs to the field of furnace facilities. The automatic feeding mechanism comprises a feeding roller rack, a feeding roller, a transition roller and a feeding roller driving device and also comprises an overhead frame, a workpiece channel opening / closing device, a workpiece signal acquisition unit adjusting device and a workpiece signal acquisition device, wherein the overhead frame comprises a pair of portal frames and a crossbeam; a workpiece channel opening / closing device is arranged along the length direction of the crossbeam; the workpiece signal acquisition unit adjusting device is fixed on the top of the pair of portal frames; the workpiece signal acquisition device is arranged on the workpiece signal acquisition unit adjusting device; a feeding roller workpiece isolating flange ring is arranged in the length direction of the feeding roller; a transition roller workpiece isolating flange ring is arranged in the length direction of the transition roller; a workpiece signal acquisition device is correspondingly arranged above a workpiece lead-in channel; and the transition roller is in transmission connection with the transition roller driving device. The working efficiency is guaranteed, the quality is ensured, the energy is saved, and the labor intensity is lightened.

The invention relates to a tower crane rotation process state control method. According to the method, a pose sensing device is adopted to obtain pose change data of the top end of a tower crane in the rotation process of the tower crane, and when the pose change exceeds a set safety threshold range, a system can give an alarm for reminding, and meanwhile, an intelligent control strategy is automatically started to obtain the vibration direction of the tower crane; and a reverse driving force opposite to the vibration direction of the tower crane can be applied by the system to the tower crane by controlling an electrical system of the tower crane and modifying relevant parameters of a frequency converter for controlling rotation actions, so that the vibration direction of the tower crane is opposite to the acceleration direction of the tower crane along an X axis or a Y axis, the vibration condition of the top end of the tower crane is inhibited, and stable operation of the tower crane is ensured.

The invention discloses an underwater robot for ship cleaning. The underwater robot comprises a machine frame, a shell arranged on the machine frame, a cleaning unit arranged on the machine frame anda driving unit arranged on the machine frame, an indicating and positioning unit used for dividing a ship into a plurality of cleaning areas is further arranged on the shell, and the indicating and positioning unit comprises a starting device provided with at least two starting point positioners, an ending device provided with at least two end point positioners, a first mechanical arm used for containing the starting point positioners and a second mechanical arm used for containing the end point positioners. According to the underwater robot for ship cleaning, the surface of the ship is divided into the separate cleaning areas, so that when the robot is used for cleaning, the obstacle in the advancing process is small, the movement is stable, the cleaning effect of the robot is good, and the cleaning efficiency of the robot is improved.

The invention relates to the field of RF coaxial connectors, and discloses a blind insertion type RF coaxial connector. The comprises a pedestal and a plug inserted to the pedestal, the pedestal comprises a conductive first casing and a first internal conductor arranged in the first casing and insulated from the first casing, the plug comprises a conductive second casing and an internal conductor assembly arranged in the second casing and insulated from the second casing, the internal conductor assembly comprises a third internal conductor and a second internal conductor which movably sleeves the front end of the third internal conductor and in disengagement limiting cooperation with the third internal conductor, the front end of the second casing is movably inserted into the first casing and connected with the first casing, and the second internal conductor is inserted into the first internal conductor and connected with the first internal conductor. The connector realizes characteristic-impedance-constant electrical connection during axial and radial offset, the characteristic impedance can be still constant and matching is sound under the condition of certain axial and radial offset, the working frequency and electrical performance under certain axial and radial insertion offset are ensured, and the problems that a present blind insertion RF coaxial connector cannot work in high frequency and is low in electrical performance are solved.