34results about How to "Reduce mechanical vibration" patented technology

The utility model relates to the technical field of aircrafts, and discloses an enhanced takeoff and landing structure of a loading aircraft, electric push rods are installed at the two ends of a supporting rod of a supporting suspender, and a position correcting lead screw is rotationally connected into a supporting rod of a bottom supporting rod; the outer side of a shaft rod of the position correcting lead screw is symmetrically sleeved with two sets of position correcting sliding tables guiding the bottom supporting rod, and the upper end of a rack of each set of position correcting sliding table is provided with an assembling bottom plate. According to the takeoff and landing structure of the loading aircraft, the height of the whole support can be adjusted and matched through telescopic braking of the electric push rod, meanwhile, the position correcting lead screw serves as a driving source to drive the assembling bottom plate to move symmetrically, and the distance between the assembling directions of the assembling bottom plate can be adjusted and matched; according to the aircraft loading and supporting device, loading and supporting work of objects of different sizes can be better adapted, flexible adjustment and using performance are better, and the aircraft loading and supporting device can also adapt to loading and supporting work of different objects while supporting an aircraft.

The invention belongs to the technical field of unmanned aerial vehicles, and provides a motor and duct integrated device, an unmanned aerial vehicle and a test method.The motor and duct integrated device comprises a duct, a rotating ring, a rotor wing and a rim motor; the rim motor is mounted in the duct, and a magnetic flux path is parallel to the axis of the duct; the multiple rotor wings are installed on the inner surface of the rotating ring and located on the inner side of the duct. The rotating ring is fixedly connected with the inner surface of a rotor of the rim motor. The rim motor is installed in the duct, and the magnetic flux path is parallel to the axis of the duct, so that the installation space of the system is reduced, the power density of the system is improved, and compared with a traditional radial magnetic flux motor, the weight and the size of the motor are reduced.

The invention belongs to the field of electric reactor noise reduction, and particularly discloses an iron core electric reactor capable of reducing resonance, which comprises an oil tank, an iron core assembly and a connecting assembly arranged in the oil tank, and a plurality of positioning nails arranged between the bottom of the oil tank and the iron core assembly, the connecting assembly comprises a foot pad arranged outside the positioning nail, a rubber pad arranged between the foot pad and the box bottom, an elastic assembly arranged above the foot pad and a steel washer arranged above the elastic assembly; the bottoms of the positioning nails are fixedly connected with the box bottom, and the tops of the positioning nails are connected with the iron core assembly through nuts. The soft wood rubber pad and the belleville spring are combined, the appropriate belleville spring is selected while the parameters of the soft wood rubber pad are adjusted, the difference between the inherent frequency of the connecting assembly and the vibration frequency of the electric reactor is large, resonance is avoided, even resonance is avoided, mechanical vibration is buffered, vibration is damped, noise is absorbed, and transmission of vibration and mechanical noise is reduced.

The utility model discloses a fixed feeding device, including work table and drive part, and the feeding end and the discharge end of work table all install integral type sprocket support, and the transmission sprocket of rotation installation has on integral type sprocket support, and two transmission sprockets are passed through synchronous chain transmission connection, and the chain block is installed on synchronous chain, and the side of two transmission sprockets is all equipped with the tension pulley, and the tension pulley rotation is installed on integral type sprocket support, and drive part installs on integral type sprocket support and is connected with transmission sprocket transmission, and the straight guide rail is equipped between two transmission sprockets, and the straight guide rail is located synchronous chain and is away from the side in the tension pulley and installs on work table, and the end face of straight guide rail is close to work table feeding end and is the inclined plane, and the inclined plane is set up with work table and is obtuse angle. The utility model discloses a integral type sprocket support, equal interval chain block and tension pulley, cooperate straight guide rail inclined plane design, shorten transition distance, and the stability of obviously improving board material conveying and clamping stability.

The utility model provides a tractor hood which comprises a shell, the shell is of a detachable box structure and comprises a front arc-shaped side wall, an upper arc-shaped side wall, a left arc-shaped side wall and a right arc-shaped side wall, through grooves are formed in the front outer side wall and the rear outer side wall of the shell respectively, a ventilation dustproof cover is detachably arranged in each through groove, and the ventilation dustproof covers are made of aluminum alloy plates. Heat dissipated by a tractor engine can be dissipated through the detachable ventilation dust cover, portable production, assembly and transportation operation of the shell can be achieved through the detachable box body structure shell, and the tractor shell is more convenient, more reliable and more economical and practical. And the transportation and production cost is greatly reduced. Heat dissipated by the tractor engine can be dissipated through the detachable ventilation dust cover, portable production, assembly and transportation operation of the shell can be achieved through the detachable box structure shell, convenience and reliability are achieved, and the transportation and production cost is greatly reduced.

The invention relates to the technical field of oxygen generators, in particular to a pressurizable high-power oxygen generator and an assembling method thereof.The pressurizable high-power oxygen generator comprises a case, an air inlet pipe, an instrument door and foot pads, the air inlet pipe is fixedly connected to the outer side of the case, the instrument door is rotatably connected to the inner side of the case, the foot pads are fixedly connected to the outer side of the case, and an operating mechanism is fixedly connected to the outer side of the case; the operating mechanism comprises a fixing column, the outer side of the fixing column is fixedly connected with a traction spring, one end of the traction spring is fixedly connected with a moving frame, the outer side of the moving frame is fixedly connected with a flat plate, the outer side of the flat plate is fixedly connected with a limiting mechanism, the limiting mechanism comprises a fixing block, the outer side of the fixing block is fixedly connected with a fixing shaft, and the outer side of the fixing shaft is slidably connected with a torsion spring. According to the high-power oxygen generator capable of being pressurized, mechanical vibration generated in the using process of the high-power oxygen generator capable of being pressurized can be effectively buffered and reduced through the structure of the device, vibration noise generated by working of an air compressor in the oxygen generator is reduced, and physical and psychological health of workers is guaranteed.

The invention provides a compressor supporting assembly of an air conditioner, a plurality of supporting legs of a compressor are mounted on a mounting platform of the compressor through the compressor supporting assembly, and the compressor supporting assembly comprises a supporting part, a plurality of supporting legs and a plurality of supporting legs, and the supporting part is fixedly mounted on the mounting platform of the compressor; the bolt part comprises a nut and a screw rod; the nut is located between the supporting piece and the installation platform, an elastic piece is arranged between the nut and the supporting piece, the screw rod movably penetrates through the supporting piece in the vertical direction Z, and a flange nut is installed on the other side of the supporting piece. The supporting leg is installed between the flange nut and the supporting piece, and a rubber pad is arranged between the supporting leg and the supporting piece. The supporting structure is used for overcoming the defects that in the prior art, a supporting structure of a compressor of an air conditioner is prone to loosening, and consequently the amplitude and noise are increased, and the supporting scheme of the compressor of the air conditioner capable of reliably maintaining the buffering effect is achieved.

The present invention discloses a device for reducing helicopter blade vortex interference, comprising a hub, on which a plurality of blades are evenly mounted in the circumferential direction, each blade is provided with a telescopic section, the telescopic section is connected to a control device, the control device controls the telescopic section to extend and retract radially during rotation, each blade evenly completes multiple extensions and retractions in each rotation, and the retraction path of each blade is the same. Using active control technology, by accurately adjusting the dynamic length of the blade, the system can effectively increase the distance between the outer end of the blade and the blade tip vortex, thereby greatly reducing the probability of the blade and the wake vortex encountering each other. The pressure fluctuations in the airflow to which the blade is subjected are effectively mitigated, thereby significantly reducing the noise level caused by blade vortex interference. The helicopter can not only better meet the requirements of airworthiness certification, but also improve survivability and mission efficiency in a battlefield environment.

The utility model relates to a kind of steel bar processing intelligent identification rib turning device, including rotation adjusting mechanism, traction positioning system, vision detection unit and control system cooperation constitutes, rotation adjusting mechanism is driven by servo motor driving belt transmission assembly, and steel bar rotation is realized in combination with ±0.5 ° high-precision rib turning disc;Traction positioning system is configured with pressure cylinder and roll group, and the elastic fixing and conveying of 16-32mm diameter steel bar are adapted;Vision detection unit uses 5 million pixel camera and annular light source, with 0.05mm / pixel resolution real-time capture rib feature;PLC controller is integrated each module by RJ45 network interface, and preset 1.5 ° angle threshold triggers automatic compensation instruction.The utility model solves the problem of low efficiency of traditional manual positioning, poor mechanical positioning accuracy, with high-precision, strong adaptability and full-process automation characteristics, significantly improve steel bar processing quality and efficiency.

The utility model discloses a double-shaft motor, which comprises a casing and a motor shaft, and two ends of the motor shaft penetrate out of the casing. A shaft sleeve is fixed on the motor shaft, a rubber anti-vibration pad is sleeved on the shaft sleeve, convex teeth are circumferentially distributed on the shaft sleeve, and clamping grooves corresponding to the convex teeth are formed in the rubber anti-vibration pad; a fixing support is arranged on the rubber anti-vibration pad in a sleeving mode and used for being connected with a fan. The device is novel in structure, flexible to disassemble and assemble and stable in operation, has a vibration reduction function and is high in practicability.

The application discloses a double-beam plug-in machine device and relates to the technical field of automatic component installation. The device adopts an independent driving double-horizontal-beam and double-working-head parallel operation architecture, can fundamentally break through the work beat bottleneck of a traditional single-beam structure, enables two working heads to respectively take materials in front and rear material loading areas and simultaneously perform plug-in operations on a PCB board located in the center of a conveying mechanism, realizes highly overlapped and parallel operation of material taking, moving and plug-in processes, and can improve the theoretical maximum beat by nearly one time compared with a single-beam single-head or single-beam double-working-head device. Since the movement stroke and load of each working head are relatively reduced, the speed and acceleration requirements of a single movement shaft are reduced, mechanical vibration, wear and noise can be effectively reduced, positioning accuracy and long-term operation stability of the device can be ensured while efficiency is improved.

This invention relates to the field of motor control, and more particularly to a positioning and calibration method for a gantry mechanism of a bonding machine based on solder joint alignment. The method includes: monitoring the speed difference and real-time displacement deviation of two independently controlled servo motors on both sides of the gantry mechanism; calculating the predicted displacement deviation on both sides of the gantry mechanism based on the speed difference and real-time displacement deviation; calculating the deflection angle of the gantry mechanism's crossbeam relative to the guide rail length direction based on the predicted displacement deviation; determining the target speed of the two servo motors based on the deflection angle; and determining the change process of the current speed towards the target speed. This invention utilizes the length of the crossbeam to ensure that the generated corrective torque is physically matched with the required angular deviation; it can automatically plan a smoother speed change rate under high-risk conditions with relatively large deflection angles; and it employs a relatively fast speed change process under normal fine-tuning conditions with relatively small deflection angles, thereby ensuring the system's rapid response capability to minor disturbances.

The present invention discloses a stator and rotor dynamic balance detection device and method, which are applied to rotor dynamic balance detection. The stator comprises: a stator core, the end face of the stator core is provided with a through hole along the axial direction, the through hole is suitable for accommodating a rotor and allowing the rotor to pass through, and the end face of the stator core is also provided with a notch, the notch is suitable for connecting the through hole with the outside atmosphere; a stator winding, the stator winding is wound on the stator core, and the stator winding generates an unevenly distributed rotating magnetic field along the circumferential direction after power is turned on, so that the rotor rotates under the action of the rotating magnetic field; after the stator core is built-in with the rotor, the reflective mark on the rotor is exposed through the notch during the rotation process. The rotor of the present invention rotates by using a rotating magnetic field, the rotor has no contact with the stator core and the stator winding, the rotor will not touch the stator core and the stator winding, and then the rotation of the rotor will not be affected by the stator core and the stator winding, and the rotation of the rotor will not introduce equipment errors, thereby improving the measurement accuracy.

The utility model discloses a municipal road soft foundation differential settlement treatment device, which relates to the technical field of municipal road construction and comprises a fixed frame with a damping mechanism at the bottom and a rotary ultrasonic detection mechanism. The rotary ultrasonic detection mechanism comprises a driving motor fixed to the side wall of the fixed frame through a bolt, a driving bevel gear fixedly arranged on an output shaft of the driving motor in a sleeving mode, a rotating shaft rotationally installed at the top of the fixed frame, a driven bevel gear fixedly arranged at the bottom end of the rotating shaft in a sleeving mode, and a rotating disc coaxially welded to the outer wall of the top end of the rotating shaft. A connecting frame and an ultrasonic detector. According to the utility model, the ultrasonic detector can rotate in a detection area through the rotary ultrasonic detection mechanism, so that the detection range is effectively enlarged, the road soft foundation can be comprehensively detected in the detection area, and the settlement position, range and degree can be more accurately determined; therefore, the subsequent treatment effect of the uneven settlement area of the soft foundation can be improved.

The application relates to the field of gas detection, in particular to a quartz tuning fork gas sensing device based on diamond-like coating enhancement, which comprises sequentially connected laser signal emitting units, light absorption cells, lenses, quartz tuning forks and electric signal collecting units, the surface of the quartz tuning fork is coated with a diamond-like coating; target light signals generated by the laser signal emitting units are transmitted to the light absorption cells; the light absorption cells contain target gases to be detected, and light signals interact with the target gases in the light absorption cells; the lenses focus the light emitted from the light absorption cells to the surface of the quartz tuning fork coated with the diamond-like coating. Compared with the prior art, the application can sensitively capture slight changes caused by trace gases, convert the changes into obvious electric signals, and the electric signals have a good linear relationship with the gas concentration, so that low-concentration gases can be measured with high precision.

The present application relates to the technical field of garment assembly line, and discloses a segmented hanging type conveying device for garments, which comprises a supporting frame and a track fixedly installed below the supporting frame, two or more groups of transmission racks connected end to end are slidingly installed below the supporting frame, a clamping groove and a clamping buckle are respectively formed at the two ends of each transmission rack, adjacent transmission racks are connected into a chain through the clamping groove and the clamping buckle, and each transmission rack comprises two groups of rack monomers fixedly embedded in each other. The adjacent transmission racks are connected into a chain through the clamping groove and the clamping buckle, and the two groups of rack monomers are fixedly embedded in each other. Compared with the traditional integral type or the technical structure of the connecting rod connected through bolts, the segmented hanging type conveying device for garments can realize independent extraction and offline replacement of a single faulty transmission rack and the corresponding mounting seat, and completely does not need to disassemble the whole assembly line conveyor belt during maintenance, so that the maintenance and replacement efficiency of the faulty section is greatly improved, and the equipment downtime maintenance cost is effectively reduced.

The self-cleaning type ultraviolet disinfection device comprises a device body, an ultraviolet lamp tube, a reflecting cover, a cleaning system and a safety protection system, a water inlet is formed in the left side of the device body, a water outlet is formed in the right side of the device body, and the cleaning system comprises an electric track and a mechanical cleaning accessory connected with the electric track in a sliding mode. The mechanical cleaning accessory comprises a U-shaped brush inner shaft and a brush sleeve, a cleaning nozzle is further arranged on the brush inner shaft, a detection sensor is further installed on the inner side of the device body, and when it is detected that dirt on the ultraviolet lamp tube reaches a threshold value, a self-cleaning program is automatically operated; the safety protection system comprises a safety protection cover, namely a shell of the device main body, an ultraviolet leakage detector, a perspective window and an ultraviolet safety control center; and when ultraviolet leakage is detected, the ultraviolet lamp tube is automatically powered off. According to the utility model, the ultraviolet lamp tube can be timely and effectively cleaned, the ultraviolet disinfection efficiency is improved, the energy consumption of equipment is reduced, and the danger caused by ultraviolet leakage is avoided.

This utility model discloses a highly efficient and uniformly stirred crystal glass craft melting and processing equipment, relating to the field of glass processing technology. It includes a melting tank and a condensing tank. The condensing tank has an internal flow channel, and the bottom of the melting tank is equipped with an extrusion mixing mechanism. The flow channel is S-shaped, with one end connected to the extrusion mixing mechanism and the other end connected to a storage tank. This utility model achieves efficient mixing through the extrusion mixing mechanism. A servo motor drives the mixing screw to rotate, using shearing action to fully stir the molten raw materials, avoiding uneven mixing that could affect the quality of the crystal glass craft. Simultaneously, the S-shaped flow channel extends the condensation path, and a fan delivers cold air to the exhaust base, accelerating the cooling of the molten raw materials. It also allows for the discharge of flue gas through the exhaust port, ensuring that the finally collected molten raw materials are at a constant temperature and pure, laying a high-quality foundation for subsequent processing.

The invention relates to the technical field of rocker control, and discloses an industrial robot control method and device based on Hall rocker control, and the method comprises the steps: carrying out the amplification and filtering of a double-shaft rocker position analog signal collected by a Hall sensor, and obtaining a rocker position digital value; constructing an interactive multi-model set comprising a uniform speed motion model, a uniform acceleration motion model and a Jerk motion model, and establishing an interactive multi-model state space expression of the interactive multi-model set; performing Markov chain analysis and model weight balance point analysis to obtain an initial model conversion probability matrix; calculating probability distribution of the target model; performing extended Kalman filtering operation on the interactive multi-model set to obtain a robot joint motion state quantity; and performing quintic polynomial interpolation operation based on the robot joint motion state quantity to generate a robot joint motion control sequence. According to the method, the precision of rocker control in a steady-state working mode is improved while the quick response capability is ensured.

The utility model relates to a built-in type tilt U-shaped permanent magnet rotor of displacement, and relates to the motor technical field, and the rotor includes rotor core, be equipped with a plurality of permanent magnet unit on rotor core, permanent magnet unit includes first middle part horizontal magnetic steel group, middle part oblique magnetic steel group and two first side part magnetic steel, first middle part horizontal magnetic steel group and middle part oblique magnetic steel group all include at least two width different one -word type magnetic steel, and the one -word type magnetic steel of first middle part horizontal magnetic steel group is perpendicular to d axle, and the one -word type magnetic steel of middle part oblique magnetic steel group is inclined to set up relative to the one -word type magnetic steel of first middle part horizontal magnetic steel group, and first middle part horizontal magnetic steel group and two first side part magnetic steel form first U-shaped magnetic steel group, and middle part oblique magnetic steel group is arranged at the radial outer side of first middle part horizontal magnetic steel group, and the rotor of the utility model can reduce motor noise and torque fluctuation.

The invention relates to a lubricating and sealing grease composition and lubricating and sealing grease, the composition contains a filler, polyisobutene, polytetrafluoroethylene, modified poly alpha-olefin, pentaerythritol tetra (6-naphthyl hexanoate) ester as shown in formula I and core-shell PU / MoS2 / ZnS nano microspheres, a rolling-sliding synergistic lubricating system is formed through the synergistic effect of various different components, the lubricating and sealing grease composition has a low friction system, and meanwhile, the lubricating and sealing grease composition can be applied to lubricating and sealing of lubricating oil. The solid particles contained in the whole sealing grease are uniformly dispersed, the adhesion sealing performance and the acid and alkali resistance are better, the low-temperature fluidity and the high-temperature oxidation resistance are excellent, and the sealing grease is particularly suitable for mechanical sealing under harsh working conditions.

The utility model relates to the flywheel energy storage technical field, and disclose a kind of flywheel energy storage device of reducing power consumption, including upper motor and energy storage mechanism, the upper motor and energy storage mechanism are communicated to form vacuum cavity, the rotating joint of the shaft that the bottom end extends to the inside of energy storage mechanism is connected in the inside of the upper motor, the inside fixedly connected with the sealing cover of the bottom and energy storage mechanism fixed connection of the upper motor, the sealing cover is sleeved in the outside of shaft, the upper motor includes upper casing;This flywheel energy storage device of reducing power consumption can solve the problem of motor temperature rise caused by low heat dissipation coefficient of excitation winding and large rotor eddy current loss, the problem of high self-discharge rate caused by permanent magnet suspension flywheel rotor, the problem of high manufacturing cost caused by winding potting, improve the stability, security in the process of flywheel energy storage system use, reduce flywheel energy storage system cost.

This utility model relates to a fixing device for stable operation of an incremental rotary encoder, belonging to the field of electrical equipment and electrical engineering technology. It includes a tubular support frame, inside which a flexible coupling is rotatably fitted. The two ends of the flexible coupling are connected to a motor and a rotary encoder, respectively. A fixing component is also fitted onto the outer surface of the tubular support frame. This utility model, through the cooperation of the tubular support frame and the flexible coupling, can effectively reduce the impact of vibration generated during motor operation on the encoder, ensuring stable and accurate signal output from the encoder. Simultaneously, the design of the fixing component makes the entire device more stable and reliable during installation and use, greatly improving the service life and performance of the equipment. Furthermore, the device has a simple structure, is easy to install, and has high practicality and promotional value.

The application belongs to the field of robot motion planning and navigation technology, and provides an arbitrary shape object trajectory planning method and system based on space-time combined A-star, which comprises the following technical solutions: generating all discrete angle corresponding bounding boxes and robot contour mask information based on the constructed robot polygon model; defining a four-dimensional state space and initializing a starting state and a target state; in the four-dimensional state space, for the node with the minimum value, a predefined motion primitive is applied to generate a successor state candidate set; for each successor state candidate node, the discrete angle corresponding bounding box and robot contour mask information of the current node are extracted, and a bit operation is performed on the corresponding area of the environment grid map, and whether collision occurs is judged according to the operation result; when the search reaches the target state or meets the termination condition, a discrete space-time path is generated by backtracking, the discrete space-time path is interpolated and smoothed, and a final executable trajectory is output.

The utility model provides an oil-free vacuum machine which comprises a cam main shaft, a first bearing sleeved on the cam main shaft, a double-eccentric cam sleeved on the first bearing, a second bearing sleeved on the double-eccentric cam, a guide sliding block and a driving assembly for driving the cam main shaft to rotate, a cylinder assembly and a piston assembly which are arranged in a rotary connection mode and horizontally opposite to each other are arranged on the connecting rod, the cylinder assembly is provided with an air inlet used for pumping high-pressure air into the cylinder assembly and an air outlet used for discharging the high-pressure air, and when the cam main shaft rotates, a first bearing arranged on the cam main shaft in a sleeving mode drives the double-eccentric cam. The double-eccentric cam drives the second bearing to do corresponding circular motion in the guide sliding block, the connecting rod drives the piston assembly to do reciprocating rectilinear motion on the same plane and the same center line on the air cylinder assembly, and when the piston assembly does reciprocating rectilinear motion, air is pumped through the air inlet and exhausted through the air outlet, so that a reciprocating cycle is completed.

The invention discloses a stator and rotor dynamic balance detection device and method, and is applied to rotor dynamic balance detection, the stator comprises a stator iron core, the end face of the stator iron core is provided with a through hole along the axial direction, the through hole is suitable for accommodating a rotor and allowing the rotor to pass through, the end face of the stator iron core is also provided with a gap, and the gap is suitable for communicating the through hole with the external atmosphere; the stator winding is wound on the stator iron core, and the stator winding generates a rotating magnetic field which is non-uniformly distributed in the circumferential direction after being electrified, so that the rotor rotates under the action of the rotating magnetic field; after the rotor is arranged in the stator core, the reflective marks on the rotor are exposed through the gaps in the rotating process of the rotor. According to the invention, the rotor rotates by using the rotating magnetic field, the rotor is not in contact with the stator core and the stator winding, and the rotor does not touch the stator core and the stator winding, so that the rotation of the rotor is not influenced by the stator core and the stator winding, the rotation of the rotor does not introduce equipment errors, and the measurement precision is improved.

The invention relates to concrete shock excitation forming equipment and a process thereof, and belongs to the field of industrial automation. The concrete shock excitation forming equipment comprises a control system, a shock excitation system and a forming mold, the shock excitation system is an electro-hydraulic shock excitation system controlled by a 2D shock excitation valve 1 and comprises a hydraulic source and an actuator connected with the 2D shock excitation valve, and two oil ports of the 2D shock excitation valve are communicated with high-pressure oil and return oil respectively. According to the corresponding shock excitation forming process, the frequency can be adjusted to be 50-200 Hz, the amplitude can be changed within the range of 5-500 mm, the amplitude change direction is opposite to the frequency change direction, and the shock excitation forming time is 60-150 s. High-thrust high-frequency vibration can be achieved through electro-hydraulic excitation, and the defects that mechanical vibration is low in frequency and fixed in amplitude are overcome. And the actuator can be arbitrarily arranged to vibrate in the horizontal direction or the vertical direction. The gravity load of the materials can be prevented from being borne through horizontal vibration, and the energy-saving effect is achieved. The forming mold can be popularized and applied to all concrete shock excitation forming processes, and the production efficiency can be greatly improved through the large forming mold.

The utility model provides a laser radar, and relates to the technical field of radars. The laser radar comprises a first housing, a second housing, a transmit-receive module and a heat conduction member. The first shell is installed on the second shell, and an installation cavity is defined by the first shell and the second shell. And the transceiving module is mounted in the mounting cavity. The transceiving module is provided with a first mounting structure, the first shell is provided with a second mounting structure, one of the first mounting structure and the second mounting structure is a groove, and the other one of the first mounting structure and the second mounting structure is a boss. The heat conduction piece is installed in the groove and abuts against the boss so that the heat conduction piece can be limited in the groove. The heat conduction piece is installed in the groove, so that the problem that the normal use of the laser radar is affected by chippings generated after the binding force of the heat conduction piece is reduced can be avoided.

The invention discloses a liquid nitrogen power self-circulation power generation system, and belongs to the technical field of power generation equipment, the liquid nitrogen power self-circulation power generation system comprises a vaporizer, a gas storage tank, a nitrogen power engine, a compressor and a generator, the input end of the vaporizer is used for receiving liquid nitrogen, the output end of the vaporizer is connected with the input end of the gas storage tank, and the output end of the gas storage tank is connected with the gas inlet end of the nitrogen power engine; the exhaust end of the nitrogen power engine is connected with the suction end of the compressor, the exhaust end of the compressor is connected with the other input end of the gas storage tank, and the mechanical energy output end of the nitrogen power engine is connected with the generator and used for driving the generator to generate electricity. In the whole power generation process, only nitrogen recycling is involved, and pollutant emission caused by combustion is completely eliminated; high-pressure potential energy generated in the liquid nitrogen vaporization process is used for directly pushing the piston to move, and efficient energy conversion is achieved. Nitrogen exhausted by the nitrogen power engine is recycled through the compressor, pressurized to rated pressure and fed back to the nitrogen power engine for use, and a self-circulation system is formed.

The invention proposes an edge detection steering system, a window cleaning machine and a steering movement control method, which belong to the technical field of window cleaning machine manufacturing. The invention comprises a machine body, a machine casing, an edge detection steering system, a control unit, a walking mechanism, a fan assembly, a wiping assembly, a spray assembly and a deceleration assembly. The distance is measured in real time by a rangefinder, and the damping deceleration is performed after the distance is graded, so that the wear caused by the window cleaning machine uniformly impacting an obstacle can be reduced; a rotating ring protrudes from the outer wall of the machine casing, so that the outer wall of the machine casing does not contact the obstacle, and the problem of edge wear between the machine casing and the obstacle is solved; the rotating ring can rotate in a plane to make circular motion, and a universal wheel is embedded in the rotating ring, so that the contact between the edge steering device and the obstacle is converted into sliding friction, which significantly reduces the wear between the two contact surfaces of the rotating ring and the obstacle and reduces power consumption; a design in which an elastic ring is provided on the outer ring of the rotating ring reduces noise and mechanical vibration, and maintains the stability and precision of the machine.