29results about How to "Great traction" patented technology

The utility model discloses a flat plate type chassis of an agricultural unmanned trolley, which belongs to the technical field of agricultural vehicle parts, aims at solving the problem that the loss rate of crops is increased due to the fact that the agricultural vehicle generates large vibration in the driving process, and comprises a chassis frame, and two front wheels are rotatably arranged at the bottom of the chassis frame close to the front end. Two rear wheels are rotatably mounted at the positions, close to the rear end, of the bottom of the chassis frame, the cushioning mechanisms, the transverse cushioning springs and the longitudinal cushioning springs are matched, under the action of the pipe sleeves and the damping rods, vibration borne by the box body can be buffered, the situation that the vibration is transmitted into the storage box from the chassis can be effectively reduced, and the storage box is convenient to use. By means of the technical scheme, the vehicle can run more stably, the stability and safety of crops in the transportation process are improved, the crops can be prevented from being excessively squeezed, collided and damaged in the transportation process, and especially for easily-damaged fruits and vegetables, the shape and quality of the fruits and the vegetables can be kept, and the loss rate is reduced.

The present invention relates to an asymmetric rolling joint device of a surgical instrument, and more particularly to an asymmetric rolling joint device of a surgical instrument in which contact rolling surfaces of mutually facing joint links are asymmetrically formed to increase a traction force. To this end, there is disclosed an asymmetric rolling joint device of a surgical instrument, characterized by comprising: a first joint link portion for forming a joint of a surgical instrument; and a second joint link portion in rolling contact with the first joint link portion, contact rolling surfaces of the first joint link portion and the second joint link portion in mutual rolling contact being asymmetrically formed to relatively increase a traction force as compared to symmetry.

The utility model discloses a kind of air-jet loom auxiliary nozzle groups of enhanced airflow, it is related to the technical field of auxiliary nozzle of air-jet loom.The utility model includes outer thread pipe, the outer thread pipe top is fixedly connected with air jet seat, the air jet seat top is fixedly connected with mounting seat, the mounting seat top is fixedly connected with connecting pipe, the first shrinkage cavity is arranged in the mounting seat inner chamber, the connecting pipe is fixedly connected with shrinkage tube with the end away from the mounting seat.The utility model is compressed air by outside through the first shrinkage cavity of mounting seat, completes first acceleration, then, through the second shrinkage cavity of shrinkage tube, realize the second acceleration of airflow, then, through transition pipe, complete third acceleration, finally, airflow is sprayed through the side of flat tube gradually shrinkage type small circle air outlet, because small circle air outlet length is less than the wall thickness of flat tube and aperture is reduced from inside to outside in flat tube, realize fourth acceleration, by compressed air four times acceleration, form high-speed airflow beam to drag weft yarn.

The utility model discloses a kind of all terrain loaders of wheel-track composite drive, it is related to engineering technical field, comprising: vehicle body and at least one group wheel-track switching walking mechanism, wherein each group wheel-track switching walking mechanism includes: driving shaft, for receiving power input;Multiple tensioning wheel hubs, by multiple tensioning hydraulic devices and multiple wheel-track switching telescopic hydraulic devices are installed on the support;Track, it is arranged at the outside of tensioning wheel hub, annular protrusion or groove is arranged in its inside side;Tensioning hydraulic device and wheel-track switching telescopic hydraulic device are used to drive tensioning wheel hub to realize displacement and attitude change.The utility model sets up tensioning hydraulic device and wheel-track switching telescopic hydraulic device to drive the tensioning wheel hub to realize displacement and attitude change by being arranged as wheel-track switching walking mechanism, make track switch between circle and polygon, to reach the purpose of wheel-track switching of walking mechanism.

Provided is a pneumatic tire that has excellent traction performance from the initial stage of wear to the intermediate to late stage of wear while maintaining wear resistance. The pneumatic tire of the present invention has a tread with a center land portion and a shoulder land portion, and a first circumferential groove extending in the tire circumferential direction is formed between the center land portion and the shoulder land portion, the center land portion is cut into a first center block and a second center block by first width direction grooves and second width direction grooves that are alternately arranged in the tire circumferential direction, a first cut-off knife groove that is substantially parallel to the first width direction grooves and is cut off is formed on the bottom surface of the first width direction grooves, and a second cut-off knife groove that is substantially parallel to the second width direction grooves and is cut off is formed on the bottom surface of the second width direction grooves.

The utility model relates to the technical field of lead storage battery production, in particular to a lead storage battery partition plate cutting device. Comprising a platform, a cutting assembly is arranged at the right end of the platform, a supporting assembly for mounting a tray is arranged at the left end of the platform, and a fixed-length conveying assembly is arranged in the middle of the platform. According to the supporting assembly, through the linkage design of a supporting block of a guiding inclined face, a lower telescopic rod and a pin rod, rapid positioning installation and automatic release of the material disc are achieved. After the material disc rolls to the supporting block, the lower telescopic rod retracts to enable the supporting block to exit, the material disc is only supported by the pin rod and freely rotates, the manual loading and unloading strength is remarkably reduced, and the continuous feeding efficiency is improved.

The utility model relates to a tread pattern structure of a medium-short distance all-steel truck radial tire, which is characterized in that three rows of Z-shaped zigzag grooves in the same direction are distributed on a tire tread along the circumferential direction of the tire tread, and main pattern blocks with irregular pentagonal structures are distributed between the adjacent Z-shaped zigzag grooves to form two rows of blocky pattern columns; an inclined shallow groove is formed between every two adjacent main pattern blocks in each row. And the main pattern blocks in the block-shaped pattern columns on the two sides of the central zigzag groove are reversely arranged in a staggered manner along the circumferential direction. A plurality of stone discharging blocks are arranged at the bottom of the Z-shaped zigzag ditch in the extending direction of the Z-shaped zigzag ditch, and the stone discharging blocks comprise main stone discharging blocks and auxiliary stone discharging blocks which are sequentially and alternately connected. A plurality of knife-shaped shallow grooves are evenly distributed in the shoulder portions of the tire tread, a plurality of block-shaped heat dissipation square grooves are evenly distributed below the two shoulder portions of the tire tread, and a plurality of exhaust holes are evenly distributed in the peripheries of the main pattern blocks. Compared with the prior art, the tire tread pattern structure disclosed by the utility model has the advantages of low rolling resistance, strong road holding force, good stone discharging performance and the like.

This invention relates to the field of agricultural machinery, and more specifically, to a self-propelled corn harvester, comprising a tracked trolley, a gantry frame mounted thereon, a clamping mechanism fixed to the gantry frame, and a harvesting roller. The clamping mechanism includes a main beam inclined downwards from the tail to the head and a separating assembly protruding from the gantry frame. The harvesting roller is connected to the tail of the main beam and forms a lateral compression space with the clamping mechanism. This invention addresses the technical problems of corn harvesters being unable to adapt to complex terrain, occupying too much space and lacking flexible turning, consuming too much energy during harvesting, causing significant damage to corn ears during harvesting, and resulting in poor corn ear quality. It enhances the automatic adaptability and operational stability in complex terrain; reduces the space occupied by the corn harvester, facilitating flexible turning; eliminates the need for additional power input during harvesting, reducing energy consumption during the harvesting process, making harvesting more labor-saving, and improving the quality of harvested corn ears.

This utility model relates to a universal chassis, including a chassis body, a base plate, and an outer shell on top of the base plate. An inner frame is located inside the outer shell, with casters at the four corners of the bottom of the inner frame. Two mounting plates extend downwards from the center of the inner frame, with drive wheels mounted on the mounting plates via drive components. A slot is provided on the rear side of the outer shell, housing a battery module. Two charging contacts are located on the rear side of the battery module. A depth camera is located on the front top of the outer shell, and two lidar sensors are located diagonally on the top of the outer shell. A lifting slot is located on the rear side of the battery module, with a rotating pull ring within it. The angle difference between the depth camera and the outer shell is 45°. The lidar sensors in this utility model are divided into forward and backward types. The backward lidar is specifically designed for rapidly approaching moving obstacles (such as pedestrians and vehicles) to perform velocity vector analysis. Combined with forward lidar data, collision time can be predicted, supporting robots to perform reversing avoidance or path replanning, making the chassis safer and more flexible in dynamic environments, with a detection range covering 360°.

The invention relates to a multi-working-mode stepless speed change transmission system for a tractor, and relates to the field of tractor transmission structures. An outer gear ring of a stepless speed change device is in transmission connection with a first transmission shaft, the first transmission shaft is in transmission connection with a ninth gear and a tenth gear, and the ninth gear and the tenth gear rotationally sleeve a second transmission shaft; and the second transmission shaft is in clutch transmission connection with a driving wheel of the tractor. Two speed change sections are added on the basis of a stepless speed change device, the workable speed interval is expanded, conventional field operation can be efficiently dealt with, and meanwhile cost is reduced. Furthermore, a second motor clutch is installed on a second motor shaft, a sun gear clutch and an engine clutch are arranged on an engine shaft, an ultra-low-speed operation clutch is arranged on a second transmission shaft, and other transmission structures are arranged, so that the four working modes and the three-section gear shifting function can be achieved.

This invention belongs to the field of tire technology and discloses a sidewall waterproofing line structure suitable for engineering machinery tires, including the tire sidewall and at least one circumferential non-sharp angled protrusion located near the tire bead. This invention uses geometric methods to locate the lower cutting point, placing the waterproofing line in the optimal water-blocking position, solving the problems of inaccurate positioning and unstable effects of traditional methods. The number, spacing, and size parameters of the angled protrusions are optimized to balance protective performance and rolling resistance, preventing mud entanglement and scratches. Precise curvature matching and arc transition eliminate stress concentration, reducing the risk of cracking. The transition area uses 5%-8% carbonized silicone material, increasing tear strength by approximately 25% and significantly enhancing durability, specifically addressing the potential cracking risk in this heavy-load stress concentration area. The open shoulder design, working in conjunction with the waterproofing line, drains water and mud, greatly improving traction and anti-skid capabilities in muddy conditions, making it more suitable for harsh working environments such as mines and construction sites.

This invention relates to the field of suspension system technology for engineering vehicles, and discloses a hydropneumatic suspension system and a tracked engineering vehicle, including a front suspension cylinder, a middle suspension cylinder, a rear suspension cylinder, a front swing arm, a middle swing arm, a rear swing arm, a buffer cylinder, a tensioning cylinder, a brake arm, and an eccentric shaft; one end of each of the front, middle, and rear suspension cylinders is hinged to the vehicle frame, and the other end is hinged to the front, middle, and rear swing arms, respectively; a tensioning cylinder cylinder seat is fixedly connected to the rear of the cylinder barrel of the tensioning cylinder, and the cylinder barrel of the buffer cylinder is placed inside the tensioning cylinder cylinder seat, allowing it to swing within the tensioning cylinder cylinder seat; the piston rod end of the buffer cylinder is hinged to the brake arm; the piston rod end of the tensioning cylinder is hinged to the vehicle frame. The beneficial effects of this invention are: it can significantly attenuate the vibration generated during high-speed operation, improve the overall comfort of the vehicle, and ensure that the tracks are tensioned in real time during high-speed operation, preventing slippage and derailment, thus guaranteeing the vehicle's mobility and passability.

The application belongs to the technical field of garbage disposal, and particularly relates to a distributed garbage collection and transportation system based on data cooperation, which comprises a mother box and a child vehicle. The child vehicle comprises a tracked mobile chassis, a speed difference separation mechanism, a cloud platform rotating mechanism, a positioning and navigation module, a full overflow detection module, an electric quantity monitoring module and a child box control module. The mother box and the child vehicle are both provided with a wireless communication module. The tracked mobile chassis is located at the two sides of the bottom of the child vehicle. The speed difference separation mechanism is located above the inside of the child vehicle. The cloud platform rotating mechanism is located below the speed difference separation mechanism. Through the cooperative operation of the child vehicle and the mother box, a '1+1' distributed child-mother box cooperative operation mode is formed. Through the tracked mobile chassis, the design principle of 'increasing the contact area, strengthening the traction force and optimizing the support structure' is used to effectively solve the problems of traffic, bearing and durability of the vehicle under complex terrains such as lawns, gravel roads, slopes and step edges.

This invention relates to a pneumatic drive system for a downhole wheeled traction device, comprising a surface gas compressor, a gas booster pump, a gas regulating module, a gas recovery station, an optical fiber device, an optical fiber receiving module, a surface optical fiber monitoring module, a downhole valve group control module, and a downhole wheeled traction device. The surface gas compressor is connected to the gas booster pump, which in turn is connected to the gas regulating module. The gas regulating module delivers gas to the downhole wheeled traction device via delivery pipeline A. The downhole wheeled traction device uses optical fiber transmission. The optical fiber device extends into the downhole wheeled traction device via optical fiber and is connected to the optical fiber receiving module. The surface optical fiber monitoring module is signal-connected to the optical fiber receiving module and the gas regulating module. The advantages of this invention are as follows: using pneumatic transmission on the surface saves costs, reduces the failure rate, and allows for timely feedback and adjustment.

This utility model relates to the field of water-jet looms and discloses a nozzle structure for a polyester water-jet loom, including a limiting ring fixed to the outer wall of the nozzle body. The limiting ring has several receiving holes, and the inner wall of each receiving hole has a receiving groove. A magnet is fixed to the inner wall of the receiving groove. A fixing cover is provided at one end of the nozzle body, and the fixing cover has a through hole corresponding to the nozzle body. Several L-shaped retaining strips are fixed to the fixing cover, and these L-shaped retaining strips are magnetically attracted to the magnet. In this utility model, through the synergistic action of the receiving groove, magnet, fixing cover, and L-shaped retaining strips, the nozzle core can be axially limited and circumferentially locked under the action of the pressing ring, ensuring greater stability of the nozzle core within the inner wall of the nozzle body. This effectively prevents the fixing cover from rotating due to vibration and avoids the risk of the nozzle core falling out of the nozzle body.

This invention relates to the field of tire tread patterns and discloses a multi-dimensional depth groove all-season tire. The tire has multiple multi-dimensional grooves and sipes. The multi-dimensional grooves have stepped groove bottoms of equal width and three-dimensional depth, including a first groove bottom, a second groove bottom, and a third groove bottom. The depths of these groove bottoms from the tire tread are 2mm, 4mm, and 6mm, respectively. The angle between the groove walls on both sides and the longitudinal direction is 1°–2°. The angle between the groove wall between the first and second groove bottoms and the longitudinal direction is 1°–2°, and the angle between the groove wall between the second and third groove bottoms and the longitudinal direction is 2°–3°. The intersections of the groove bottoms are rounded, with positive corners rounded to R0.4–R0.6 and negative corners rounded to R0.1–R0.3. The multi-dimensional groove design can effectively improve the tire's snow traction, snow grip, and hydroplaning performance on icy and wet surfaces, and eliminate resonance; the serrated three-dimensional groove design can further enhance tire grip; the asymmetrical staggered arrangement of tread blocks can significantly reduce tire rolling noise.

A multi-mode hybrid power tractor driving system and a control method thereof relate to the technical field of hybrid power tractors, and comprise an engine, an independent PTO module, a generator, two groups of electric driving systems and a central clutch. The electric drive system comprises a motor and a coupler, and the coupler achieves power converging and shunting through a planet row, a brake and a synchronizer. The system realizes various modes such as single drive, conventional four-wheel drive, super front and rear drive and inter-axle power distribution by controlling the state of each clutch, and can concentrate the power of the double motors to improve the traction force or perform redundant drive when one side breaks down. The PTO direct connection engine guarantees heavy-load operation, and the generator optimizes the working condition of the engine. The problems that a traditional fuel vehicle is high in emission and large in energy consumption, and an existing hybrid vehicle is complex in transmission and low in efficiency are solved, organic unification of environmental protection, energy conservation and intelligent control is achieved, and the vehicle is particularly suitable for the heavy-load operation requirement under the agricultural complex working condition.

The application discloses a process for improving the performance of a excavator and relates to the technical field of excavators. The process comprises the following steps: step S01, starting the engine and making it run at full throttle after preheating and performing digging, soil throwing, walking and lifting operations, detecting and recording the bucket digging force, bucket rod digging force, lifting force and traction force; and step S02, installing a hydraulic system tester on the high-pressure pipeline of the hydraulic pump of a new excavator by using a bypass method, making the pump run at a rated speed, and observing and recording the flow readings of the front and rear pumps of the tester when the hydraulic oil temperature is 50+ / -5 DEG C. The application is a process technology for adjusting the pressure of each working oil cylinder of the main control valve in the hydraulic system of a new or old excavator and the excellent matching of the pump and the engine, fully improves the fuel utilization rate of the engine and the working efficiency and benefit of the whole machine, saves energy and is economical, and can improve and repair the performance and quality of the new or old excavator, such as the digging, crushing, lifting moment and speed.

The utility model provides a vibration type spine tractor which comprises a main body support, a vibration mechanism and a hanging assembly, and the main body support comprises a supporting frame and an upper supporting rod; the vibration mechanism is fixedly arranged on the upper supporting rod and outputs vibration in the vertical direction of the supporting frame. The hanging assembly is arranged at the output end of the vibration mechanism and suitable for being arranged on the armpit of a user in a sleeving mode, and the hanging assembly vibrates up and down in the vertical direction of the supporting frame along with the vibration mechanism. The armpit of a user is suitable for being limited on the hanging assembly and hung on the supporting frame, and vibration traction on the spine of the user is achieved through the vibration mechanism and the gravity of the human body. The vibration mechanism is additionally arranged in the tractor, vibration with a certain frequency can be applied in the traction process, a good traction effect can be achieved only through low traction force, and the risk that in traditional traction treatment, due to the fact that the traction force is too large, soft tissue strain is caused is effectively avoided.

The invention discloses a tire pattern and a tire. The tire pattern comprises a central pattern area, the central pattern area comprises a plurality of rows of V-shaped grooves which are uniformly distributed in the circumferential direction of the tire tread, and two main grooves which are parallel to each other are formed in the two sides of the central pattern area; the tire further comprises a first pattern area and a second pattern area, the first pattern area is located on the left side of the central pattern area, the corresponding main grooves are located between the first pattern area and the central pattern area, the first pattern area comprises a plurality of Z-shaped grooves evenly distributed in the circumferential direction of the tire, and the second pattern area is located on the right side of the central pattern area, and the corresponding main grooves are located between the second pattern area and the central pattern area. The second pattern area comprises a plurality of transverse grooves evenly distributed in the circumferential direction of the tire. Through symmetrical use of the tire, the driving stability and the uniform wear resistance of the tire can be improved, the phenomenon of low-deflection wear is reduced, meanwhile, the problem of driving direction deflection caused by different friction coefficients of a traditional asymmetric tire can be avoided, the driving safety is improved, and meanwhile, the oil consumption can be further reduced.

A connecting device capable of reducing the mooring cable load of a marine floating system under typhoon sea conditions and application thereof, the connecting device comprising a hydraulic outer cylinder, a hydraulic inner cylinder, a hydraulic cylinder piston and an annular piston; an annular cavity is formed between the outer wall of the hydraulic inner cylinder and the hydraulic outer cylinder, the annular piston is slidingly connected in the annular cavity and forms an oil storage cavity between the annular piston and the top of the hydraulic outer cylinder, and an elastic member is arranged between the bottom of the hydraulic outer cylinder and the annular piston; the hydraulic cylinder piston is slidingly connected to the inside of the hydraulic inner cylinder and separates the inside of the hydraulic inner cylinder into an upper inner cylinder cavity and a lower inner cylinder cavity, the upper inner cylinder cavity and the oil storage cavity are filled with hydraulic oil, and the upper inner cylinder cavity and the oil storage cavity are communicated through parallel one-way pressure relief valves and one-way return valves; the connecting device is applied to the connection of a mooring cable component of a ship or an offshore platform, uses hydraulic pressure to provide buffering and release length to the mooring cable, reduces the pulling force on the mooring cable, and belongs to the technical field of marine equipment.

The utility model discloses a kind of unwinding devices for hydraulic cutting bed, including fixed base, the upper end surface of the fixed base is welded with unwinding roller shaft mounting plate, unwinding roller shaft main body is installed on the unwinding roller shaft mounting plate, traction shaft stem is installed on the unwinding roller shaft mounting plate, the upper of the traction shaft stem is equipped with guide shaft stem, first guide roller and second guide roller are installed on the guide shaft stem, sequencing roller shaft assembly is installed on the unwinding roller shaft mounting plate.The utility model can be sequentially through traction shaft stem, first guide roller, second guide roller, sequencing roller shaft assembly and unwinding discharge roller to carry out unwinding discharge operation by installing the unwinding roller shaft device of convenient drive, the cutting tape structure wound on the surface of unwinding roller shaft main body, with good guiding effect, can effectively prevent material tape from being staggered during unwinding, facilitate hydraulic cutting bed equipment to carry out flat cutting operation, improve the operation accuracy of hydraulic cutting bed.

The application discloses a kind of based on reverse pull belt's super long zipper chain combination device, including translation device, pull belt device and lead belt device are set in translation device output side.Pull belt device includes the lead belt slider of slidable and the lead belt clamp being set on it, and the clamping gap formed by lead belt clamp is less than the thickness of puller.Pull belt device includes the pull belt drive wheel of being able to be folded or separated and pull belt friction wheel.Working, lead belt clamp clamps the zipper of translation device output and is pulled to the below of pull belt drive wheel, then pull belt friction wheel and drive wheel are folded and hold chain belt, pull belt motor drives chain belt reverse (to the direction of translation device) walk, using the obstruction of lead belt clamp to puller, so that puller moves to chain belt separation end, to chain belt is completely pulled into puller, realize complete chain combination.The application is also provided with chain beating component, for arranging slack chain and preventing jam.The application breaks through the problem that the length of traditional device chain combination is limited by translation stroke, can realize super long zipper one-time, complete closure, improve production efficiency and product yield.

The utility model relates to the technical field of agricultural mechanical equipment, in particular to a tractor stepless speed change transmission system which comprises an engine, a clutch is arranged at the output end of the engine, a first front speed increasing box is arranged at the output end of the clutch, a first hydrostatic stepless speed changer is arranged at the output end of the first front speed increasing box, and a second hydrostatic stepless speed changer is arranged at the output end of the second front speed increasing box. A gearbox assembly, a middle power output assembly and a rear power output assembly are arranged at the output end of the first hydrostatic stepless transmission. The front speed increasing box I and the hydrostatic stepless speed changer I are arranged, the front speed increasing box I achieves power speed increasing through gear meshing transmission, the structure is compact, the transmission efficiency is high, power input with the higher rotating speed can be provided for follow-up transmission parts, and the power transmission performance of the whole transmission system is optimized; the first hydrostatic stepless speed changer can flexibly adjust the angle of an internal swash plate according to operation requirements, and stepless speed change is achieved.

A mobile cleaning robot may move in an environment, the mobile cleaning robot may include a body and a drive arm movable relative to the body between an extended position and a retracted position. The robot may include a drive wheel connected to and movable with the drive arm. The drive wheels are operable to move the mobile cleaning robot. The robot may include a first link connected to the main body and to the drive arm. The robot may include a second link connected to the main body and to the drive arm to define, with the first link, the main body, and the drive arm, a center of rotation about which the drive arm and the drive wheel rotate between an extended position and a retracted position.

The application is a kind of intelligent vehicle adaptive closed-loop control method based on slope change scene set. It includes the following steps: constructing high-fidelity road scene containing various types of continuous slope change to form urban scene set; configuring large passenger vehicle model and semantic segmentation laser radar, RGB camera; real-time identifying the longitudinal slope state space of the front road based on semantic point cloud; making lane changing decision in combination with the vehicle state, neighbor vehicle information and road adhesion coefficient; under the boundary constraint of vehicle dynamics stability domain generated in phase plane diagram, generating safe and feasible candidate trajectory by fusing slope adaptive rules; optimizing trajectory by multi-objective cost function, and realizing closed-loop tracking by longitudinal and lateral PID controllers. The application improves the driving safety, energy efficiency and control robustness of large intelligent vehicles in complex slope environment.