28results about How to "Eliminate misalignment" patented technology

The invention relates to an electromagnetic navigation system, a data synchronization method and device thereof and electronic equipment, the electromagnetic navigation system comprises a field emitter and a magnetic sensor, the field emitter comprises a first emission unit and a second emission unit; the first transmitting unit is used for generating a working magnetic field which is used for positioning the magnetic sensor; the second transmitting unit is used for generating a reference signal, and the reference signal is used for synchronizing magnetic field detection data and magnetic field working data of the working magnetic field; wherein the magnetic field detection data is obtained by detecting a working magnetic field through a magnetic sensor, and the magnetic field working data is provided by a field emitter; the first emission unit and the second emission unit are configured to share a work clock of the field emitter. According to the application, the problem that the positioning error of the magnetic sensor is increased due to the fact that time difference exists between the time information of the magnetic field working data and the time information of the magnetic field detection data corresponding to the same physical moment in an existing electromagnetic navigation system is solved.

The invention discloses a robot motion control system and control method based on machine vision, relates to the technical field of machine vision, and provides effective data input for an error calculation and correction module by extracting a local feature point set Fp during operation of the system. And the error calculation and correction module calculates an image translation error Et and a rotation error Er based on the feature point set Fp, obtains a translation vector T and a rotation error R by correcting the image position, generates a complete panoramic image P, and provides reliable visual information support for subsequent target positioning and path planning. The motion control and target positioning module is combined with a panoramic image P and a positioning algorithm, so that the target positioning precision is improved, the path planning is optimized, the problems of image dislocation, positioning errors and path instability in a traditional method are solved, and the adaptive capacity and task execution efficiency of the robot in a dynamic environment are greatly improved.

The invention relates to the technical field of positioning, in particular to a laser dynamic point determination method and device and computer equipment. The method comprises the following steps: acquiring three-dimensional point cloud data of each laser point in a target area; determining a transformation matrix according to geometric information of the three-dimensional point cloud data in the three-dimensional space; wherein the transformation matrix comprises a rotation transformation parameter and a translation transformation parameter; performing alignment processing on the three-dimensional point cloud data in the translation direction and the rotation direction of the three-dimensional space by adopting the transformation matrix; and determining laser dynamic points in the laser points according to the aligned three-dimensional point cloud data.

The invention discloses a method, a device and equipment for correcting staggered holes of a flange of a wind turbine generator and a medium, and belongs to the technical field of wind power. The method for correcting the staggered holes of the flanges of the wind turbine generator comprises the steps that under the condition that the wind turbine generator is shut down and an impeller is locked, individual bolts in a plurality of bolts connecting a hub flange and a rotating shaft flange are detached, and the staggered hole directions of the hub flange and the rotating shaft flange are determined according to screw holes corresponding to the detached bolts; the remaining bolts for connecting the hub flange and the rotating shaft flange are loosened, and then preset fastening torque is applied for fastening; and the impeller is controlled to rotate according to the target direction corresponding to the hole staggering direction under the acting force of wind until the hole staggering distance between the hub flange and the screw hole corresponding to the disassembled bolt and the hole staggering distance between the rotating shaft flange and the screw hole corresponding to the disassembled bolt are smaller than the preset error distance. According to the embodiment of the invention, the safety of the wind turbine generator can be improved.

This utility model relates to the field of glass processing technology, and in particular to a fully automatic integrated glass bonding and gluing machine. The fully automatic integrated glass bonding and gluing machine includes: a base, a glass body placed on top of the base, an electric push rod fixedly connected to the top of the base, an extrusion plate fixedly connected to the output end of the electric push rod, adjusting plates equidistantly installed on the top of the base, a first clamping plate fixedly connected to the side of the adjusting plate closest to the glass body, a second clamping plate fixedly connected to the side of the adjusting plate closest to the glass body, a scraper plate installed between multiple sets of corresponding first and second clamping plates, a driving component for moving the adjusting plates, a reciprocating component for reciprocating movement of the scraper plate installed inside the multiple sets of first clamping plates, and an adjusting component for changing the position of the adjusting plates. The fully automatic integrated glass bonding and gluing machine provided by this utility model has the advantages of precise clamping, automatic scraping, and flexible adjustment.

This invention relates to the field of cable inspection and maintenance technology, and discloses a robot for the operation and maintenance of power transmission lines in mountainous areas. The robot includes a main body, a sliding buffer assembly, a camera inspection assembly, a positioning assembly, and a drive assembly. The sliding buffer assembly decouples the camera mechanism from the robot body through a sliding groove and a slider, allowing the robot to move forward continuously at a constant speed while the camera mechanism remains stationary, eliminating motion blur and channel misalignment. Driven by the drive assembly, the positioning assembly first stretches the cable section to be tested axially and then pushes it axially, forcibly opening circumferential and axial micro-cracks to facilitate the visualization of early damage. Four sets of multispectral high-definition cameras in a ring array employ an intermittent static shooting strategy, requiring only one key image to be acquired for each detection section during the stretching and pushing states. This invention achieves high-precision, low-miss-rate detection of micro-cracks in cables in mountainous areas, simplifies the system structure, and improves the robot's portability and operational stability.

The embodiment of the invention provides a body block generation method and system based on a freehand sketch, and belongs to the technical field of image processing and three-dimensional modeling. The method comprises the following steps: acquiring a freehand sketch image and extracting a closed contour candidate set to generate a polygon candidate set; a measurement anchor point set in the freehand sketch image is identified, a spatial scale field is constructed according to the measurement anchor point set, and the polygon candidate set is mapped into a Mie-system bottom surface polygon set; extracting a height hinting feature set corresponding to the Mie bottom surface polygon set, determining an absolute height value according to the height hinting feature set and the measurement anchor point set, and generating a body block parameter set; and constructing a spatial constraint graph and executing position adjustment calculation, generating a three-dimensional block set and outputting a three-dimensional model file. According to the scheme, numerical extraction and unified mapping of the scale information and the height suggestion information in the freehand sketch are achieved, and the three-dimensional block model with the consistent geometrical relationship is generated under the spatial constraint condition.

The invention discloses a multi-modal depression auxiliary detection algorithm, and the method comprises the steps: obtaining multi-modal data which comprises video data, voice data and scale data of a medical site; carrying out identity recognition, round labeling and format conversion processing on the multi-modal data to obtain structured data containing role information, time sequence round and content fields; performing feature extraction on the structured data to obtain a feature vector set containing an image mode, a text mode and a voice mode; carrying out fusion processing on the feature vector set by adopting a preset cross-modal attention mechanism dominated by a text mode to obtain multi-modal fusion feature information; and inputting the multi-modal fusion feature information into a pre-configured depression risk assessment model, performing feature transformation and compression through a full connection layer and a pooling layer, and outputting a depression disease probability for representing a target individual. According to the method, complementation and dynamic semantic modeling of multi-source data can be realized, and the accuracy and reliability of a detection result are improved.

The application relates to the field of welding and discloses a power pole iron accessory welding manufacturing tool, which comprises a support frame, two bending assemblies are arranged side by side on the support frame, and a welding assembly is arranged above the two bending assemblies; wherein the bending assembly comprises a rotating shaft rotatably arranged on the support frame, a first motor for driving the rotating shaft to rotate, a disc sleeve arranged on the rotating shaft, an adjustable blocking column arranged on the disc and a variable-diameter center sleeve sleeve arranged on the end of the rotating shaft. By arranging the variable-diameter center sleeve driven by the conical table, different specifications of the bending ring diameter can be quickly adapted without replacing the tool, and the adjustment time during specification switching is reduced; by arranging the arc-shaped blocks capable of sliding to the disc direction during the bending process between the arc-shaped plates, the continuous axial thrust is applied to the reinforcing steel bars, the bending deflection is prevented, and the misalignment between the back-bending part and the pole body is eliminated.

The utility model discloses a wireless charging device, which comprises a receiving coil, a receiving coil shell, a transmitting coil, a transmitting coil shell and a connecting piece, the receiving coil is arranged in the receiving coil shell; the transmitting coil is arranged in the transmitting coil shell; when the transmitting coil shell is moved to the receiving coil shell and the transmitting coil shell and the receiving coil shell are aligned to a preset position through the connecting piece, the transmitting coil and the receiving coil directly face each other and are in a matched state, and the gap and the offset between the transmitting coil and the receiving coil are smaller than or equal to a set threshold value. According to the utility model, the coil dislocation during charging can be reduced, the coil area can be reduced, the requirement for foreign matter detection can be reduced, and electromagnetic radiation can be reduced, so that the charging safety is ensured while the charging efficiency is ensured, and the manufacturing cost of the charging device is reduced.

The invention relates to the field of indoor mapping, discloses a mobile robot indoor mapping method based on multi-sensor fusion, and relates to the technical field of mobile robot navigation. The method comprises the following steps: an upper computer processing module collects data of a wheel type odometer, inertia measurement and a laser radar and carries out time alignment; calculating a state prediction value based on a kinematic model, and generating a posterior state estimation value by using extended Kalman filtering and fusing multi-source observation data; the current active local sub-graph is obtained by taking the current active local sub-graph as an initial value, a continuous probability map model based on bicubic interpolation is constructed, and an optimal matching pose is solved by utilizing a nonlinear optimization algorithm; and updating the probability grid map based on the optimal pose, and generating an indoor map through multi-resolution loopback detection and global pose map optimization introducing a robust loss function. According to the method, slipping and zero offset errors are effectively compensated, the problem that gradient optimization cannot be carried out on a discrete map is solved, and the robustness and precision of indoor mapping are improved.

The invention relates to a high-precision and high-rigidity flexible coupling which comprises a shifting fork A, a shifting fork B and a connecting ring, the shifting fork A and the shifting fork B are the same in structure and shape, and the connecting ring is embedded between the shifting fork A and the shifting fork B to form a cross-shaft-like limiting structure. The device is ingenious in design, simple in structure, convenient, practical and free of elastic elements, deflection force is eliminated through displacement and deflection of the shifting fork, torque and rotating speed are accurately transmitted, deflection sensitivity and sliding movement sensitivity are high, and the problems that in existing bearing rotating precision measurement, a traditional elastic coupler is large in measurement error and high in precision are solved. The problem that the real rotation precision of the bearing cannot be measured due to the fact that the elastic element generates reverse acting force after deformation is solved, and compared with the prior art, the device has good market prospects and development space.

This invention belongs to the technical field of 3D modeling for engineering construction. It discloses a method and system for modeling bulldozer operation maps in mining areas based on 5D Gaussian geometry. The method includes: S1 acquiring RGB images and depth data of the earthmoving operation area using an RGB-D camera; applying a contrast enhancement algorithm to the RGB data and vibration compensation to the depth data; and performing semantic recognition of the category of each pixel location; S2 back-projecting the depth data to generate a 3D point cloud; constructing 3D Gaussian units at the sampling points of the point cloud; and converting them into 5D Gaussian implicit units covering spatial, temporal, and semantic dimensions after fusing semantic category and timestamp information; generating a 3D implicit base map; S3 filtering the 5D Gaussian implicit units; and projecting to obtain a 2D rendered image. This invention provides 3D visualization support for bulldozer operation in mining areas, is applicable to scenarios such as mining, and solves modeling problems such as weak texture in earthmoving and equipment vibration interference.

The utility model provides a hob subassembly, including mounting shaft, annular knife and knife rest, the knife rest includes mounting piece and limit piece, the mounting piece includes the annular mounting portion that is sleeved on the mounting shaft and with the locking portion that is connected with the annular mounting portion, the locking portion has the first end and the second end that are opposite to each other, and the limit piece is connected with the first end and the second end. The first end and the second end are connected through a fastening connecting piece so that the locking part can be fixed to the mounting shaft in a surrounding mode, a plurality of limiting grooves are formed in the outer surface, back to the locking part, of the annular mounting part, and the mounting shaft is sleeved with the limiting piece which is connected with the annular mounting part through connecting pieces arranged in the limiting grooves. The annular cutter is arranged on the mounting shaft in a sleeving mode and located between the outer surface and the limiting piece in the axial direction of the mounting shaft, the connecting piece is arranged on the annular cutter in a penetrating mode, and the central axis of the annular cutter is parallel to the axial direction. The hobbing cutter assembly solves the problem that materials are not cut well in the using process of the hobbing cutter assembly.

The application discloses a robot trajectory planning method and device for a grasping and placing task. By obtaining a natural language task instruction, path decomposition is performed based on a large language model to generate a stage sequence including pre-grasping, grasping, lifting, pre-placing, placing, and withdrawing, and each stage target and / or constraint. The optimal grasping pose and / or placing pose provided by an upstream module are received, and the stage target related to grasping and / or placing is replaced or corrected. According to the corrected stage target and constraint, a trajectory segment is generated and smoothed to obtain a trajectory sequence. Collision detection is performed on the trajectory sequence. If a collision occurs, collision information is output and local repair or re-planning is performed until the collision detection is passed or a preset re-planning condition is reached. The robot controller executable trajectory sequence is output. The scheme realizes stage decomposition and key pose landing, and forms a collision feedback closed loop to obtain an executable trajectory.

This application provides a method, apparatus, electronic device, and system for generating continuous linear structures on an irregular spherical surface. The method, in response to a path generation command, performs spatial offset prediction processing based on the current path orientation to generate a predicted step vector and a predicted growth position; based on the predicted growth position, it performs terrain adaptation detection processing to determine the target landing coordinates and local surface normal on the irregular spherical surface; based on the local surface normal, it performs path attitude correction processing on the predicted step vector to generate a corrected growth tangent adapted to the local terrain, and accordingly generates a segmented structural model placed at the target landing coordinates. This application, through a closed-loop mechanism of spatial prediction and terrain adaptive correction, effectively alleviates the problems of clipping, suspension, and connection breaks caused by linear structures on irregular spherical terrain, improving the fit and continuity of the structure with the complex surface.

This utility model relates to the field of thickness measurement technology and discloses a cable and wire insulation sheath thickness measuring device, including a measuring support cylinder. One end of the measuring support cylinder is respectively provided with a clamping assembly, an adjusting assembly, a measuring support assembly, and a scale rod. The clamping assembly includes several arc-shaped support plates arranged on the outer side of one end of the measuring support cylinder, and one end of each arc-shaped support plate is fixed with a first T-shaped rod that penetrates into the inner end of the measuring support cylinder. A first return spring is installed between one end of the first T-shaped rod and the inner wall of one end of the measuring support cylinder. Several sliding grooves are formed on the side wall of the middle part of the measuring support cylinder. This utility model, through the linkage of the clamping assembly and the adjusting assembly, can both internally support the tubular sheath and externally clamp the conductor structure. Therefore, when the measuring support assembly and the scale rod are used in combination, it can simultaneously detect the thickness of both semi-finished and finished cables, making it widely applicable.

This utility model discloses a wheel pressing device, relating to the field of mold manufacturing technology. It includes an upper mold assembly and a lower mold assembly: the upper mold assembly includes an upper template, an upper positioning element at the bottom of the upper template, and an upper mold fixedly disposed at the bottom of the upper template; the lower mold assembly includes a lower base, a lower template fixedly connected to the top of the lower base, a lower fixing plate at the top of the lower template, guide posts on both sides of the lower template, and a guide sleeve at the bottom of the upper template for use with the guide posts; through the guide post and guide sleeve mating structure, and the rim and spoke positioning structure, utilizing the precise guidance and dedicated positioning structure of the guide posts and guide sleeve, the alignment deviation between the upper mold assembly and the lower mold assembly is eliminated, making the wheel pressing positioning more accurate and stable, thereby improving the pressing accuracy.

The present invention realizes a micromechanical rotation speed sensor assembly, a rotation speed sensor array and a corresponding manufacturing method. The micromechanical rotation speed sensor assembly comprises: a first rotation speed sensor device (100) which can be driven by a drive device (AT1, AT2) via a drive frame device (RA1a, RA1b, RA2a, RA2b) to rotate and oscillate around a first axis (z), and is used to sense a first external rotation speed around a second axis (y) and a second external rotation speed around a third axis (x), wherein the first, second and third axes (z, y, x) are arranged perpendicular to each other; and a second rotation speed sensor device (200) which can be driven by the drive device (AT1, AT2) via the drive frame device (RA1a, RA1b, RA2a, RA2b) to linearly oscillate along the second axis (y), and is used to sense a third external rotation speed around the first axis (z). The first rotation speed sensor device (100) is connected to the second rotation speed sensor device (200) via the drive frame device (RA1a, RA1b, RA2a, RA2b). The drive frame device (RA1a, RA1b, RA2a, RA2b) has a first drive frame (RA1a, RA1b) and a second drive frame (RA2a, RA2b), which can be driven by the drive device (AT1, AT2) to oscillate in anti-phase along the third axis (x). The rocker connects the first and second rotor devices and the first and second drive frames.

This invention proposes an ultrasonic casting system for wear-resistant zinc-aluminum alloy castings, belonging to the field of alloy casting equipment. It solves the problems of unstable molten metal flow rate, difficulty in temperature control, coarse grains caused by modifier failure, and mold splashing during casting caused by manual pouring in the production of wear-resistant zinc-aluminum alloy castings. The system includes a tundish, an ultrasonic treatment system, a flow-guiding mold, and a mold positioning mechanism. The flow-guiding mold is located at the bottom of the tundish, and a heating device is located on the outside of the tundish. A push rod is located on the top cover, with its bottom inserted into the flow-guiding mold. The ultrasonic treatment system includes a transducer, an ultrasonic generator, an amplitude transformer, and a guide rod. The guide rod penetrates the top cover, with its bottom extending below the molten metal surface. The top of the guide rod is connected to the amplitude transformer, which is connected to the transducer, and the transducer is connected to the ultrasonic generator. A mold positioning mechanism is located below the flow-guiding mold. It is mainly used for casting zinc-aluminum alloy castings.

The invention provides a disc-type stator winding and a preparation method thereof, and a disc-type motor, and the preparation method comprises the steps: carrying out the molding processing of a conductor ring, so as to form a branch winding disc which is provided with a plurality of guide bars which are arranged at intervals in the circumferential direction of the conductor ring; wherein the middle areas of the adjacent guide strips are spaced, the inner ends are connected with each other, and the outer ends are connected with each other; the two branch winding discs are oppositely stacked in the axial direction of the conductor ring, the inner rings of the two branch winding discs are connected and electrically conducted, and the outer rings of the two branch winding discs are connected and electrically conducted to form a total winding disc; wherein the middle areas of the two branch winding discs are arranged in an insulating manner; and the inner ring and the outer ring of the total winding disc are cut, so that the guide bars arranged adjacently in the same branch winding disc are arranged at intervals in the circumferential direction. The disc-type stator winding can be obtained by sequentially completing the steps of forming treatment, relative stacking and cutting on the conductor rings, and the problems that the preparation process of the disc-type stator winding is tedious, alignment deviation is prone to occurring and the like can be solved.

The utility model relates to a four-in-one low-voltage rubber sleeve winding cable, and belongs to the technical field of cable manufacturing. According to the technical scheme, a rubber core reinforcing core is arranged in the center, a power wire core, a control wire core unit, an instrument communication wire core unit, an optical cable core and a ground wire core are arranged around the rubber core reinforcing core in the circumferential direction for cabling, an inner sheath (22) is extruded outside the cabling wire core, an aramid fiber reinforcing layer (23) is woven outside the inner sheath (22), and an outer sheath (24) is extruded outside the aramid fiber reinforcing layer (23). The beneficial effects of the utility model are that the power wire core, the control wire core unit, the instrument communication wire core unit and the optical cable core are combined together, so that the optical cable has four functions of power transmission, signal control, communication and optical fiber, the number of cables during laying is reduced, the phenomena of dislocation and entanglement between wires are avoided, and the service life of the optical cable is prolonged. The occupied space during cable laying is reduced, and the operation safety of the cable is ensured.

The utility model belongs to the technical field of press-fitting jigs, and discloses an automobile door inner guard plate press-fitting jig which comprises a base, hydraulic cylinders, a lifting plate and a fixing assembly, the hydraulic cylinders are symmetrically installed on the two sides of the inner wall of the base, the ends of the hydraulic cylinders extend out of the base and are connected with the lifting plate, and the fixing assembly is connected with the lifting plate. The spring, the placing plate, the lifting plate and the like are arranged, in the using process, an operator fixes and places the automobile door inner protection plate on the lifting plate and the placing plate respectively, after the lifting plate makes contact with the placing plate, the automobile door inner protection plate is placed on the lifting plate and the placing plate, and after the lifting plate makes contact with the placing plate, the automobile door inner protection plate is placed on the placing plate. The hydraulic cylinder continuously extrudes the spring downwards, the two automobile door inner protection plates are embedded and fixed through resilience force of the spring and downward pressure of the hydraulic cylinder, pressure borne by the lower automobile door inner protection plate is reduced, and the problem that an existing press-fitting jig cannot effectively protect the automobile door inner protection plates against extrusion deformation is solved.

According to the intelligent liquid metering pump, the detachable feeding valve body and the detachable discharging valve body are arranged, so that the valve element is convenient to disassemble and assemble; the linear moving mechanism is matched with the metering piston head through a floating joint, so that the problem of dislocation occurring when the linear moving mechanism is connected with the metering piston head is solved; when the coaxiality of the linear moving mechanism and the metering piston head is inconsistent, the thrust applied to the metering piston head by the linear moving mechanism is not reduced, so that the normal movement of the metering piston head in the metering piston cylinder is ensured; therefore, the output quantity of liquid in the metering pump is not influenced.

The invention relates to the technical field of reaction kettle shell welding, in particular to a welding processing device for production of a reaction kettle lining shell, which comprises a welding clamping device, a moving platform, an inner wall supporting device, an outer wall extruding device, a welding seam correcting device and a positioning clamping device which are arranged beside welding equipment, a first moving end and a second moving end are arranged on the moving platform; the inner wall supporting device is mounted at the first moving end of the moving platform and is used for supporting the inner wall of the reaction kettle shell; the outer wall extrusion device is horizontally mounted between the first moving end and the second moving end of the moving platform and is used for extruding the outer wall of the reaction kettle shell; the welding seam correcting device comprises an inner seam extrusion correcting device installed on the inner wall supporting device and further comprises an outer seam extrusion correcting device installed on the outer wall extrusion device. According to the automatic welding equipment, the welding quality can be improved, and the service life of the equipment can be prolonged.

The application provides an ultrasonic ring scanning image registration method and system, and the method comprises the following steps: setting a marker based on an endoscope shell, obtaining ultrasonic data through ultrasonic probe ring scanning; determining an amplitude lower limit value, constructing a registration condition, and screening out a first data group meeting the registration condition through iteration; demarcating each group of image frame heads and image frame tails in the original ultrasonic data based on the positions of two adjacent first data groups, and the data between each group of image frame heads and image frame tails is exactly the data collected through one round of ultrasonic probe ring scanning; and performing ultrasonic image reconstruction on the data between one group of image frame head and image frame tail, so that one frame of ultrasonic ring scanning sectional image is obtained. The scheme improves the imaging registration accuracy of the ultrasonic ring scanning endoscope by setting a marker on the endoscope, ensures that each frame of image contains exactly the data collected through one round of ultrasonic probe ring scanning, avoids information loss and information redundancy, and eliminates the misalignment at the joint of the frame head and the frame tail.

The invention relates to the technical field of automobile part machining, in particular to a surface treatment device for a composite brake drum, the surface treatment device for the composite brake drum comprises a machine base, a first clamping part, a second clamping part, a rotating shaft, a grinding disc and an adjusting assembly, the first clamping part is arranged on the machine base and used for clamping the composite brake drum in the circumferential direction; the first clamping part can rotate around a first axis; the second clamping part is movably arranged on the machine base, can move in the direction close to or away from the first clamping part relative to the first clamping part and is used for clamping the composite brake drum in the circumferential direction. The rotating shaft is inserted into the second clamping part and can rotate around the axis of the rotating shaft; the rotating shaft and the second clamping part can be switched between movable connection and fixed connection; the grinding disc can rotate around the axis of the grinding disc and is used for grinding the composite brake drum. The adjusting assembly is used for adjusting the position of the rotating shaft so that the axis of the rotating shaft can coincide with the first axis, and therefore the grinding effect is improved.

The present invention relates to the technical field of rope breaking protection for stackers, and in particular to a rope breaking protection device for a cargo platform of a stacker, comprising a fixed frame, a connecting plate connected to the cargo platform is fixedly connected to the lower surface of the fixed frame, a connecting mechanism is arranged at the inner top end of the fixed frame, a floating mechanism for adjusting the position of the fixed frame is arranged at the inner bottom end of the fixed frame, a pulling mechanism for emergency braking is arranged at the front side of the floating mechanism, two left-right symmetrical limiting mechanisms for assisting the pulling mechanism in emergency braking are arranged at the front side of the floating mechanism and below the pulling mechanism, the sliding friction between the protection device and the sliding track is changed to rolling friction through the setting of the adjusting member, thereby reducing resistance and eliminating noise, and the adjusting member cooperates with the fixed plate to float left and right on the mounting frame to eliminate the misalignment between the protection device and the track, reduce the wear between the track and the cargo platform, ensure the smooth operation of the cargo platform, and ensure the safety and reliability of the device.