76 results about "Ground pressure" patented technology

The invention discloses a vehicle control method and a vehicle, and belongs to the technical field of vehicle control. According to the technical scheme provided by the embodiment of the invention, the vehicle can realize finer and more active escape operation by simultaneously adjusting the height of the suspension, applying the braking force and finely adjusting the steering angle. Active lifting of the suspension system can change the ground pressure of the slipping wheels, which is a function that cannot be achieved by a traditional brake or differential lock. The brake system limits idle to transmit torque. The steering system can guide the target vehicle to find the optimal escape path. Through cooperation of the multiple systems, the target vehicle can more flexibly adapt to complex road surface conditions and dynamically-changed vehicle body postures, and therefore the escape efficiency and stability of the target vehicle under extreme conditions are improved. Therefore, the problems of response delay, limited control precision and low escape efficiency caused by insufficient consideration of the dynamic change of the vehicle body attitude in related technologies are solved.

This invention belongs to the field of tire manufacturing technology and discloses a non-pneumatic tire, including a tire body. The tire body includes a rim, a support body, and a tread ring. The support body includes a first ring, a second ring, a first support leg, and a second support leg. The first ring is fixedly connected to the rim. This invention, by setting up the first ring, second ring, first support leg, and second support leg, provides a stable inner force-bearing foundation for the support body. The second ring evenly bears the force transmitted by the tread ring. The first and second support legs form an elastic frame that adaptively deforms and absorbs vibration under stress. Furthermore, the structure of the support legs and the through-holes allows for a more uniform distribution of stiffness and ground pressure, effectively reducing vehicle vibration and improving ride stability. The synergistic cooperation of multiple structures significantly enhances the elastic buffering capacity of the support body, effectively suppressing wheel deformation under heavy loads or impact loads, further enhancing driving safety.

The utility model belongs to the technical field of material conveying equipment, and discloses a material transport vehicle. The material transport vehicle comprises a vehicle body, a cable and an anti-dragging device, the cable is connected with the vehicle body and comprises a plug, and the plug can be connected with an external power source; the anti-dragging device comprises an electric mortise lock assembly and a pull rod assembly, the electric mortise lock assembly is connected with the vehicle body, the pull rod assembly is movably connected with the vehicle body, the electric mortise lock assembly is electrically connected with the cable, and the electric mortise lock assembly is used for locking the pull rod assembly in the state that the pull rod assembly abuts against the ground. According to the material transport vehicle, impact on the plug and an external power supply caused by huge inertia generated by dragging the vehicle body when the plug is not pulled out is avoided, and potential safety hazards of electricity utilization are eliminated.

The invention discloses a sampling device for deep mine exploration, which can quickly adapt to exploration sites with different topographic features through position adjustment of a fixed shaft in a movable groove and locking of a fastening nut, and can effectively disperse the weight of the device and reduce the ground pressure through combination of a symmetrical support plate and an angle-adjustable bearing plate. Reliable supporting can be achieved on rugged or soft sites; the hydraulic cylinder is adopted for driving and is matched with the limiting plate for guiding, the lifting process is stable and free of deviation, the depth requirements of exploration of different deep underground mines can be accurately met, the adjusting precision is higher, the response speed is higher, and stable height support is provided for the sampling mechanism; the sampling mechanism adopts a double-collection-assembly synchronous operation mode, a driver can adaptively adjust the output torque according to the stratum hardness, and by combining with a sampling groove rotating at a high speed, multi-depth and high-fidelity ore rock samples can be efficiently collected; the spraying mechanism is linked with the monitoring unit to realize intelligent temperature control and dust falling, so that sampling friction high temperature is effectively reduced, the service life of parts is prolonged, and dust diffusion can be inhibited.

The invention provides an anti-rock-burst return airway advance support method and device, and the method comprises the steps: deploying a mining crawler-type carrier and a plurality of advance supports in an advance region of a return airway, and supporting the advance region of the return airway; a crawler-type unit support and a plurality of hydraulic supports with super-large working resistance are arranged in the air return roadway to support the air return roadway; after the coal mining machine finishes cutting one knife of coal, moving a plurality of forepoling and a plurality of hydraulic supports with super-large working resistance; when the forepoling is moved, the forepoling located at the rearmost end of the forepoling area is moved to the foremost end of the forepoling area in a descending mode through a mining crawler-type carrier in the mode that one forepoling is carried each time, the area where the forepoling is moved is temporarily supported through the crawler-type unit supports, and after the crawler-type unit supports are withdrawn, the forepoling is moved. And the hydraulic support with the super-large working resistance is moved in a stepping mode. According to the supporting method, disturbance of stress of the return airway can be reduced, the phenomenon of sudden stress release is reduced, and the continuous supporting capacity of the return airway is improved.

This utility model discloses a folding device for the rear support wheel of a hooklift truck based on dual-cylinder drive, relating to the field of special vehicle technology. It includes a first part and a second part, with the first part located at the top of the second part. The first part consists of a longitudinal beam fixedly connected to the frame via U-bolts. A fixing frame is welded to one end of the longitudinal beam, and symmetrically arranged upper supports are welded to one side of the fixing frame. This utility model uses dual-cylinder synchronous control of the support wheel to avoid failure risks, resulting in more stable unfolding / folding actions. The dual cylinders can also distribute the force, making the ground pressure on the support wheel more uniform and improving safety during heavy-duty operations. The folded support wheel is close to the frame to reduce the turning radius and avoid interference with obstacles. It effectively solves the problems of uneven unfolding of traditional mechanical support wheels and frame deformation caused by uneven loading of hydraulic single cylinders, significantly improving the operating efficiency and reliability of hooklift trucks in scenarios such as garbage transfer and equipment loading / unloading.

The utility model relates to a telescopic tractor anti -rollover counterweight block mechanism, including frame, the adaptive board of installation in the top of frame, the counterweight ring of installation in the position of approaching four around of frame, the counterweight frame is equipped with with the counterweight ring coaxial setting of following rotation box in the extension position of both sides of frame, the adaptive board is used for adapting tractor chassis installation, and the counterweight ring and following rotation box are used for adapting tractor wheel anti -rollover installation, and the telescopic sleeve and the external cylinder of connection are all set up in both ends of counterweight frame, and the cylinder drives telescopic sleeve to approach or to be far from counterweight block, and the floating air bag is used as longitudinal buffer and compensation device, when tractor climbs, downhill or passes through undulating terrain causes the equal difference change of front and rear axle load, and the floating air bag can actively inflate and deflate, and the dynamic jacks up or releases counterweight ring, and shares the axle impact load, and the stability of auxiliary keeps the front and rear wheel ground pressure, thereby effectively promotes fuel economy, and improves the maneuverability of steering and driving, realizes the perfect unity of safety and efficiency.

The utility model discloses a variable load road roller, it includes frame and sets up the walking mechanism and load adjusting mechanism in the lower part of frame, wherein walking mechanism includes the front drive axle of hinged connection in the bottom of frame front side and the rear drive axle of hinged connection in the bottom of frame rear side, and load adjusting mechanism includes the multiple groups of loading wheel of setting between front drive wheel and rear drive wheel, and loading wheel hinged connection is established on the support axle, and the end of this support axle is hinged fixed on the rocker and crank, wherein the other end of crank is hinged connection with the crank axle of setting on one side of support axle, and the crank axle is hinged connection with the hinged seat of installing on the frame, and the other end of rocker is hinged connection with the loading cylinder telescopic end of setting on the other side of support axle, and loading cylinder is hinged installed on the frame through hinged seat, and the loading wheel can be through the control loading cylinder action to realize to the pressure intensity of carrying out to the road surface through the road surface rolling pressure belt, and then realizes the quick adjustment of road roller to the ground pressure intensity.

The invention provides a construction method for controlling the ground pressure of a goaf by a room-and-pillar method through interval type dry material filling, and belongs to the technical field of mining engineering. According to the method, a discontinuous supporting system is constructed in a goaf by utilizing the natural accumulation characteristic of a discrete material. The method comprises the following specific steps: firstly, actually measuring goaf roof and jamb states to plan a path; a filling control section is calibrated with 20-30 meters as the standard in the excavation advancing direction, the space between one to two rows of ore pillars is selected in the section to serve as a stress bearing core area, and the rest space serves as a ground pressure release cavity area; then, dry materials are conveyed in a mechanical throwing and filling mode, a blanking point is controlled to take a natural repose angle as a boundary, and a local stable accumulation body for supporting the top plate is formed under the condition that a manual retaining wall is not needed. According to the method, construction is sequentially propelled, so that the filled sections and the unfilled sections are alternately distributed, an interval supporting structure combining rigid supporting and flexible pressure relief is formed, and a construction strategy is dynamically adjusted according to monitoring data.

The utility model belongs to the field of reinforcing device, concretely relates to a kind of impact ground pressure roadway help part reinforcing device, including roadway, the vertical help part of both sides of roadway is uniformly pasted with reinforcing seat, the reinforcing seat is hollow shell, the inboard of reinforcing seat is fixedly connected with multiple evenly distributed wedge pegs, the wedge peg is embedded in the vertical help part of roadway, the vertical help part side of reinforcing seat away from roadway is contacted with baffle, the side of baffle away from reinforcing seat is fixedly connected with clamping groove, the inside of clamping groove is clamped with clamping block, and inner thread sleeve is fixedly connected on the clamping block.The utility model is driven by the thread of two-way screw rod and inner thread sleeve, can be adjusted the compaction force of two sides reinforcing seat to the vertical help part of roadway simultaneously, cooperate wedge peg embedding rock mass and internal concrete filling, form the multiple protection system of initiative support and passive reinforcement combination, to further improve the impact ground pressure capacity of roadway.

This utility model belongs to the field of tire processing technology, specifically relating to a high-saturation buoyancy agricultural tire. It includes a bead, sidewall, and crown. The crown consists of tread blocks and tread grooves. The tread blocks are composed of symmetrical patterns of varying areas, with a tread saturation of 50%-52%; the tread depth is 15mm-28mm; the tread groove angle is 16°-20°, and the groove bottom curvature is 3mm-6mm; the longitudinal arc Rc of the tread blocks is 16mm-30mm, the transverse arc Rd=Rc-2mm, and the connecting reverse arc Re is 90mm-130mm. This utility model increases the contact area through high saturation, reducing ground pressure and allowing the tire to "float" on the ground, minimizing damage to grasslands. Combined with shallow depth, symmetrical distribution, and optimized groove design, it improves traction, self-cleaning properties, and wear and puncture resistance, making it suitable for agricultural operations such as lawns and grasslands where surface protection is required.

The application discloses a ground leveling robot, which comprises an electrical system, a leveling execution head connected with the electrical system, and a screw propeller assembled on the electrical system, wherein the electrical system is electrically connected with the screw propeller and the leveling execution head. The screw propeller is used to replace the existing track chassis, so that the problem of large ground pressure of the ground leveling robot can be solved, the deformation of the steel bars in the un-solidified concrete can be reduced, the surface of the screw propeller is smooth, the screw propeller has buoyancy, and thus the cleaning is convenient, the screw propeller is not prone to being stuck, and the feasibility is remarkably improved.

This invention relates to the field of roadbed strength, specifically to a method for detecting the strength of highway roadbeds based on a semi-empirical modified curve. This invention records the pressure and displacement during impact using sensors on a falling weight deflectometer, calculates the vertical displacement of the road surface, selects a Beckman beam deflectometer and a test vehicle, installs the Beckman beam deflectometer between the two rear wheels of the test vehicle, corrects the test vehicle parameters, calculates the deflection value, corrects the diameter of the left and right tires of the test vehicle to 22.35 cm, and corrects the ground pressure of the left and right tires of the test vehicle to 0.75 MPa. The vertical displacement and deflection values ​​measured in steps (2) and (3) are recorded and compared with the national highway roadbed strength standard, thereby achieving rapid detection of roadbed strength without damaging the road structure. Furthermore, the test vehicle can be used to detect and evaluate the road smoothness of the selected road.

The application discloses a ground pressure management system suitable for deep mining of underground mines, and relates to the technical field of mine safety monitoring and intelligent control, comprising a perception and collection layer, a transmission and communication layer, a data processing and analysis layer, a risk assessment and early warning layer and a linkage control layer; by arranging multiple types of monitoring units at key parts of the stope, roadway and support, multi-source data such as surrounding rock stress, deformation, dynamic response, support state and environmental disturbance are obtained, and after unified processing by an edge gateway, the data are transmitted to the analysis layer for fusion modeling and abnormality identification. Based on multiple indexes, a comprehensive risk evaluation system is constructed, and dynamic weights are used to realize risk grading and trend prediction, and generate early warning information. The system further links pressure relief, support, mining adjustment and personnel and equipment control measures, and realizes parameter self-adaptive correction through a feedback mechanism, forming a closed-loop management. The system improves the ground pressure monitoring precision, early warning accuracy and disposal efficiency of deep mines.

The energy-absorbing anti-collision and anti-inclination hydraulic support for roadway comprises a roof beam, a hydraulic column, a base, an auxiliary support frame, an anti-inclination assembly and an energy-absorbing assembly; the X-shaped auxiliary support frame forms a triangular stable structure among the hydraulic column, the base and the auxiliary support frame, thereby enhancing the ability to resist lateral force; the energy-absorbing assembly and the roof beam are connected by a sliding insertion type mounting structure, thereby ensuring the convenience of installation and disassembly and the stability after installation; the anti-inclination assembly is cooperated with the auxiliary support frame by the support legs which can be quickly extended, thereby quickly forming reliable lateral support when the impact ground pressure occurs, and preventing the hydraulic support from being inclined or tilted under the lateral force; the energy-absorbing assembly adopts a sandwich structure, has the characteristics of simple structure, easy manufacturing and low manufacturing cost, and the corrugated plate is sprayed with fire-retardant rubber in all directions, thereby preventing rust and isolating sparks generated in the crushing process of the corrugated plate, preventing the sparks from contacting with external gas, and providing guarantee for the fire safety in the underground mine.

The utility model discloses a compression device for recycling waste automobile materials, which comprises a compression mechanism and a shade mechanism which is arranged at the top of the compression mechanism and used for reducing the fragment sputtering amplitude in the compression process, in the pressing process of a pressing plate, the waste automobile materials are stressed to collapse, part of the materials are stressed to sputter after being crushed, and the compression mechanism is used for compressing the waste automobile materials. After the fragments impact one side, close to the back plate, of the shielding plate, kinetic energy is consumed completely, the fragments fall naturally, in the continuous pressing process, when the shielding plate and the bottom of the shielding plate make contact with the ground and still need to be pressed downwards continuously, the ground pressure jacks the shielding plate, the stroke of the shielding plate in the vertical height is extended through sliding of a second screw rod in a vertical arm, and when the shielding plate moves back after compression is completed, the fragments fall naturally. And the spring is opened to push the bottom strip and the shielding plate to reset, so that the situation that in the process of compressing the waste automobile materials, broken fragments are partially sputtered into the external environment, and potential safety hazards are caused to personnel can be effectively reduced, and the safety of the working environment is guaranteed.

The application relates to the technical field of amphibious vehicle suspensions, in particular to a track walking unit lifting system for an amphibious vehicle and a use method thereof, which comprises an oil-gas spring upper support, a double-cylinder oil-gas spring, a limiting lock, a pull rod, a track walking unit, a balance elbow assembly, a balance elbow auxiliary seat, a limiting rod, a rocker arm and a vehicle body. When the vehicle runs on soft road surface, oil is filled into the main oil cavity of the oil-gas spring through a hydraulic control system, the rocker arm is pushed and the balance elbow swings until the track walking unit is in contact with the ground. Under this use condition, the track walking unit can bear part of the load of the vehicle, the contact area between the vehicle and the ground is increased, the ground pressure of the whole vehicle is reduced, and the passing performance of the vehicle on the soft road surface is improved. When the vehicle runs on water, oil is filled into the annular cavity of the oil-gas spring through the hydraulic control system, the piston rod is contracted to drive the rocker arm and the balance elbow to swing, and finally the track walking unit is lifted into the wheel cabin.

The utility model relates to a tread driving pattern structure of a heavy-load all-steel radial tire. The tread driving pattern structure comprises a tire tread, the longitudinal pattern grooves are arranged in a staggered manner and comprise longitudinal Z-shaped zigzag main pattern grooves, first longitudinal Z-shaped zigzag pattern grooves and second longitudinal Z-shaped zigzag pattern grooves, the longitudinal Z-shaped zigzag main pattern grooves and the first longitudinal Z-shaped zigzag pattern grooves are opposite in direction, and the first longitudinal Z-shaped zigzag pattern grooves and the second longitudinal Z-shaped zigzag pattern grooves are opposite in direction; the transverse pattern grooves are used for connecting two adjacent longitudinal pattern grooves; the longitudinal pattern grooves and the transverse pattern grooves are encircled to form a plurality of uniformly distributed mahjong block-shaped pattern blocks with hexagonal structures, and three-dimensional transverse wave grooves are formed in the mahjong block-shaped pattern blocks. Compared with the prior art, the tire provided by the utility model has the advantages that the ground pressure distribution is more uniform, the wear resistance is higher, the probability of abnormal wear near the transverse pattern grooves of the tread of the tire is reduced, and strong driving force can be provided for the tire.

The invention discloses a caterpillar tractor chassis structure capable of carrying a power gear shifting device, and relates to the technical field of tractors, the caterpillar tractor chassis structure comprises a rack, a power assembly is arranged on the rack, a transmission case assembly is further arranged on the rear side of the rack, the input end of the transmission case assembly is connected with the power assembly, and the output end of the transmission case assembly is connected with the power assembly. A transmission box assembly is arranged on the machine frame, the output end of the transmission box assembly is connected with a driving wheel output shaft, driving wheels are arranged at the two ends of the driving wheel output shaft, crawler wheel train assemblies are symmetrically arranged on the two sides of the machine frame, crawler belts are wound on the crawler wheel train assemblies in a tensioning mode, and the crawler belts are meshed with the driving wheels respectively. The wheel type tractor has the advantages of being stable in walking, high in road holding force and even in ground pressure in the complex and severe plowing environment, so that the operation reliability and flexibility of the whole tractor can be improved, and the problems that a traditional wheel type tractor is difficult to adapt to plowing and walking in small plots and complex environments in the south of China are solved.

This utility model relates to a food delivery robot designed for soft sandy environments, comprising a base, a storage cabinet, a moving module, and a drive module. The storage cabinet is positioned above the base and connected via a lifting column. The moving module includes a foot linkage assembly, consisting of a rotating disk, a front moving assembly, a rear moving assembly, and a synchronizing rod, with the front and rear assemblies arranged symmetrically at the eccentric hinge of the rotating disk. The drive module transmits power through a drive gear meshing with a driven gear on the outer periphery of the rotating disk. This utility model is adaptable to soft sandy terrain, effectively dispersing ground pressure through discrete point contact and phase-complementary alternating periodic gait, fundamentally preventing sinking and slippage, and features a simplified drive system and simple structure.

The present application relates to the field of intelligent control technology of agricultural machinery, in particular to a combined harvester track passability control method based on visual detection, comprising the following steps: S1: predicting a motion trajectory based on the real-time running speed and steering angle of the harvester; S2: extracting the real-time terrain slope angle of the trajectory area; S3: determining the target ground pressure distribution mode required by the track in the predicted trajectory area; S4: calculating the target hydraulic flow distribution ratio for controlling the walking motor; S5: controlling the hydraulic valve group to adjust the oil supply amount according to the target flow distribution ratio. The present application realizes the segmented adaptive adjustment of the track ground pressure through the linkage of visual perception and hydraulic regulation, effectively improving the passability and operation stability of the combined harvester under complex terrain.

A kind of inclined ladder and measurement method for gangway end space position measurement, inclined ladder body is hinged with wave-compensated gangway end on operating ship by hinged shaft, wave-compensated gangway end side is connected with inclined ladder body by telescopic cylinder, inclination sensor is arranged on inclined ladder body, the position of hinged shaft is measurement point;The lower end of inclined ladder body is installed universal wheel, and the ground pressure size of force sensor between the two is fed back, the vertical rotation shaft of universal wheel is connected with rotation angle sensor for measuring the direction angle of universal wheel;Pulse encoder is installed on the horizontal wheel shaft of universal wheel for measuring the rolling distance of universal wheel;The signal of above-mentioned measuring device is received by data processing unit of measurement control system, data processing unit also accepts gangway deflection angle, data processing unit calculates the spatial position change of measurement point in real time, real-time automatic feedback wave-compensated gangway end position, improve the control effect of wave-compensated gangway, reduce operating operator, improve boarding safety.

The utility model provides a high-earth-pressure soft rock roadway surrounding rock structure stress detection device, which belongs to the field of high-earth-pressure soft rock roadway surrounding rock structure stress detection, and is characterized by comprising a receiving transducer and a transmitting transducer, the measuring pipe is respectively connected with the receiving transducer and the transmitting transducer; the connecting assembly comprises a male connecting sleeve and a female connecting sleeve, and the male connecting sleeve is in threaded connection with the interior of the female connecting sleeve. According to the utility model, through the arrangement of the connecting assembly, the measuring pipe and the connecting mechanism for the measuring pipe can be detachably connected with the measuring pipe, and on the basis of ensuring the normal connection of the measuring pipe, after the connecting assembly is damaged or the service life reaches the age limit, the whole connecting assembly can be taken down from the measuring pipe, and a new connecting assembly is replaced to be connected with the measuring pipe; therefore, the measuring pipe does not need to be replaced during maintenance, replacement cost is effectively reduced, and waste of the intact measuring pipe is avoided.

The invention discloses a bionic pattern block and a tread pattern comprising the bionic pattern block, three identical regular hexagons or long hexagons are arranged in a delta shape to form a closed-contour twenty-edge shape, the bionic pattern block is obtained, the long hexagons are obtained by stretching the long diagonals A of the regular hexagons in the longitudinal direction, and the long diagonals A of the long hexagons are obtained by stretching the long diagonals A of the long hexagons in the longitudinal direction. The long diagonal line A and the opposite side distance B of the hexagons meet the condition that when the hexagons are arranged in a triangular shape, the distance between the upper hexagon and the lower hexagon is C, the distance between the left hexagon and the right hexagon is D, the widths of the C and the D are 0-3mm, and the C and the D are filled into pattern blocks. Coupling bionic design is carried out by extracting the outline structure of the home cat palm pad and the long hexagonal structure of the tree frog palm pad, and a coupling bionic pattern structure is designed on a tire tread pattern, so that the wet friction performance of the tire is effectively improved, the ground pressure uniformity of the tire is optimized, the vibration noise of the tire is reduced, and the service life of the tire is prolonged. And the wet friction performance and the vibration noise performance of the bionic tire are synergistically improved.

This invention provides an intelligent row seeder, control system, and method, relating to the field of intelligent agricultural equipment technology. The intelligent row seeder includes a single main frame with a press wheel, furrowing disc, and pressure spring assembly mounted on it. The main frame also integrates a sensor integration box and an edge computing control box. During field operation, the sensors scan the terrain and soil conditions in real time, and the edge computing control box issues commands based on AI algorithms to drive linear actuators to dynamically adjust the furrowing disc depth limiter to control the furrowing depth, and simultaneously drives the electronic control adjustment mechanism to change the downward pressure of the single-unit ground pressure spring in real time. This invention integrates AI perception and mechanical execution to achieve closed-loop adaptive adjustment of sowing depth and press pressure, effectively overcoming the uneven sowing depth caused by differences in terrain and soil quality, reducing energy consumption and labor costs, and achieving precision sowing.

The invention discloses a crane cart walking track closed-loop correction method suitable for track unevenness, and relates to the technical field of heavy carrying equipment control. A track topology parameter and a cart operation reference parameter are obtained, a track unevenness track deviation mapping model is constructed through feature analysis, track excitation and cart response are coupled through a nonlinear kinetic equation, and a track deviation predicted value is output; then, dynamic response data such as a cart frame attitude angle, wheel grounding pressure and actual walking track coordinates are collected in real time, a self-adaptive closed-loop correction model is constructed in combination with predicted values, correction parameters are dynamically optimized through a reinforcement learning algorithm, and a wheel rotating speed difference and steering angle adjusting instruction is generated; and finally, transmitting an adjusting instruction to a driving system to realize track correction, and feeding back corrected data to the mapping model to complete real-time updating of parameters. According to the method, through multi-source data fusion and double-model collaborative design, accurate prediction and dynamic correction of the track deviation under the track unevenness working condition are achieved.

The invention discloses special mobile disinfection spraying equipment for cattle and sheep foot-and-mouth disease epidemic prevention, which comprises a mobile chassis module, the mobile chassis module comprises a chassis body with the bearing weight not less than 500kg, crawler-type walking mechanisms and a driving unit, the crawler-type walking mechanisms are symmetrically arranged on two sides of the chassis body, the crawler width is 200-300mm, the grounding specific pressure is less than or equal to 30kPa, the crawler-type walking mechanisms are symmetrically arranged on two sides of the chassis body, and the crawler-type walking mechanisms are symmetrically arranged on two sides of the chassis body. Anti-skid patterns with the depth of 5-8 mm are arranged on the surfaces of the creeper tread bodies, and the adjacent creeper tread bodies are connected through high-strength pin shafts with the diameter of 12-16 mm. The driving unit is a 20-40 horsepower double-cylinder engine, the waste liquid recycling assembly collects redundant disinfectant through a flow guide groove and a recycling box, and secondary pollution is avoided; the ultraviolet germicidal lamp and the spraying action are linked to be turned on, so that double protection of chemical disinfection and physical sterilization is realized; multiple safety mechanisms such as a high-pressure pump set safety valve, liquid level alarm and pressure abnormity automatic shutdown are combined with application of an anti-corrosion coating and an anti-corrosion part, the service life of equipment is prolonged, meanwhile, operation safety is guaranteed, and the maintenance cost is reduced.

The application discloses a control method of a diagonal bracing mechanism of a telescopic arm forklift, and the diagonal bracing mechanism comprises a support frame hinged to a vehicle frame, an oil cylinder, a vibration mechanism installed on the back of the support frame, a control module, an inclination sensor for acquiring the inclination of the forklift, and a pressure sensor for detecting the ground pressure of the support frame in real time; the telescopic end of the oil cylinder is hinged to the support frame and drives the support frame to move on the vehicle frame; the application defines a vibration mode to meet the heavy load operation requirements of various fields such as farmland and sandy land for soft ground; and in the operation scene of the inclined soft slope, the differentiated control of the downward movement of the low-side motor for compaction and the upward movement of the high-side motor for assistance is combined with a certain vibration ratio to reduce the risk of rollover.

The application provides a wheel sliding mechanism and a lower limb rehabilitation training device containing the same, which comprises a base, an auxiliary bearing table, a lifting device and a rotating device; a wearing shoe is arranged on the top of the base, and a main pulley block is arranged on the bottom of the base; the rotating device drives the base to horizontally rotate through gear transmission, so that the training direction is adjusted; the lifting device drives the auxiliary bearing table to lift relative to the base, so that the bottom of the auxiliary bearing table selectively contacts the ground; a linkage frame is arranged in the auxiliary bearing table; the linkage frame can absorb the ground impact, keep the appropriate tension of the auxiliary bearing table and the ground pressure, ensure the stable traction and improve the smoothness. The application integrates the controllable steering, the lifting double-mode switching and the elastic self-adaptive buffering function, can realize the precise steering and improve the training safety, the switching of the auxiliary mode can increase the friction, strengthen the climbing force, adapt to the complex site, and self-adaptively adjust the stable traction to improve the smoothness.

The utility model relates to the technical field of cable protection devices, in particular to a cable protection device for preventing impact ground pressure in a coal mine, which comprises a fixed base, an anchor hole is arranged at the top of the fixed base, a sliding rail is vertically arranged on one side of the fixed base, a sliding seat is connected onto the sliding rail in a sliding manner, and the sliding seat is connected with a cable. A damping spring and a damper are connected between the sliding seat and the bottom of the fixed base, a mounting plate is fixedly connected to one side of the sliding seat, a hook is fixedly connected to the mounting plate, a limiting plate is horizontally connected to an opening of the hook in an inserted mode, and the limiting plate and the hook are fixedly connected through a bolt; rubber pads are arranged on the inner sides of the limiting plates and the hooks; the sliding seat slides along the sliding rail and is matched with the damping spring and the damper to absorb longitudinal impact energy, so that the impact force borne by the cable is remarkably reduced, and the cable is prevented from falling off or throwing due to instant impact.