66results about How to "Great traction" patented technology

The invention provides a loader driven by double motors and a maintenance method thereof, and relates to the technical field of engineering mechanical equipment, the loader comprises a frame, a cab and wheels arranged on the frame, a bucket arranged at the front end of the cab, a working device arranged at the right rear end of the frame, and a walking device arranged at the left side of the frame; the working device is arranged above the right side of the walking device; the working device comprises a working motor, a first fixing piece and a second fixing piece; the walking device comprises a walking motor, a third fixing piece, a fourth fixing piece, a fifth fixing piece and a sixth fixing piece. The first fixing piece is fixed with the rear end of the frame; the second fixing piece, the third fixing piece and the fourth fixing piece are fixed with the right lower end of the frame; and the fifth fixing piece and the sixth fixing piece are fixed with the left lower end of the frame. A pure electric driving system is adopted, and the working device and the walking device are driven by double motors to work, so that emission of carbon dioxide and other harmful gases is effectively reduced, and noise pollution is reduced.

The invention provides a tractor inflation and deflation system and method and a tractor. A tractor inflation and deflation system comprises a control valve set, an air source, a plurality of wheel side valves, a plurality of tires, a front axle and a rear axle, the control valve set is connected with the air source and the wheel side valves through pipelines, the wheel side valves are connected with the tires, and the tires are installed on the front axle and the rear axle respectively.

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 present invention discloses a lumbar traction and reduction device, which relates to the technical field of medical devices, comprising: a base, support plates are fixedly installed on both sides of the top surface of the base, a rotating column 1 is rotatably connected between the two support plates, a driving motor 1 is fixedly installed on the side wall of one of the support plates, the output shaft of the driving motor 1 is connected to the side wall of the rotating column 1, a sleeve rod 1 is fixedly installed on the outer surface of the rotating column 1, a backrest is fixedly installed on the outer surface of the sleeve rod 1, a contraction groove is provided on the rear side wall of the backrest, a shoulder pillow is installed on the rear side wall of the backrest through an adjusting component, and a headrest is fixedly installed on the rear side wall of the shoulder pillow. The present invention realizes the detection of the patient's lumbar strength, massage and relaxation of the waist, the detection of the fit between the lumbar spine and the backrest, and multi-directional traction adjustment through the detection component, the adjustment component and the rotating component, thereby providing a safe, comfortable and effective lumbar traction and reduction treatment plan for the patient.

The utility model discloses a range hood which comprises a machine head and a smoke barrier integrally formed with the machine head and arranged in a smoke barrier area of the machine head, the smoke barrier is arranged in a protruding mode in the direction opposite to the direction in which oil smoke is sucked, and the smoke barrier is arranged in the radial direction in which the oil smoke is sucked. A smoke collecting cavity arranged on the peripheral side of the smoke baffle in a surrounding mode is formed between the side wall face of the smoke baffle and the inner wall face of the machine head, and an air inlet allowing oil smoke to enter is formed in the annular wall of the smoke baffle. According to the range hood, the integrally-formed structure is adopted, the number of external components of the range hood is reduced, a user can clean the area leaked out of the range hood more conveniently, the cleaning work is simplified, and the cleaning convenience of the user is improved. The design of the smoke barrier can effectively reduce the speed of oil smoke and guide the oil smoke to flow around along the surface of the lower panel, so that the traction force of air inlet airflow to the oil smoke is increased, and the oil smoke trapping efficiency is improved. The air inlet is formed in the inner side annular wall of the annular smoke collecting cavity, so that a surrounding effect is formed to wrap the oil smoke, and the oil smoke is effectively prevented from escaping.

The utility model relates to aluminium material processing equipment technical field discloses a track type aluminium profile tractor, a track type aluminium profile tractor, including lathe, tractor, gyro wheel column, tool bit, the outside fixed connection of lathe has the frame, the outside fixed connection of frame has the slide rail, the inside fixed connection of column box has first air cylinder, the utility model has the following advantages and effect: the tool bit is closed through the effect of first air cylinder to fix one end of aluminium material between tool bit and clamping plate, then through the movement of tractor drives the aluminium material fixed between tool bit and clamping plate to move, when the tractor moves, square hole and slide rail sliding connection make the tractor do linear motion along the slide rail, make the aluminium material do linear motion when drawing the aluminium material, prevent the phenomenon that the aluminium material is bent when being drawn, realize the effect of good aluminium material drawing effect through the above operation.

The invention relates to the field of agricultural machinery, in particular to a self-propelled corn harvester which comprises a crawler trolley, a portal frame arranged above the crawler trolley, a clamping mechanism fixed to the portal frame and a picking roller, and the clamping mechanism comprises a main beam inclining downwards from the tail to the head and a dividing assembly protruding out of the portal frame. The picking roller is connected to the tail part of the main beam and forms a lateral extrusion space with the clamping mechanism; the technical problems that a corn harvester is difficult to adapt to complex terrains, occupies too large space and cannot flexibly steer, energy consumption in the picking process is large, extrusion damage to corncobs in the picking process is large, and the quality of the corncobs is poor are solved. The flexible adaptive capacity and the use stability of automation in complex terrains are enhanced; the occupied space of the corn harvester is reduced, and flexible steering of the corn harvester is facilitated; extra power input is not needed in picking, energy consumption in the picking process is reduced, picking is more labor-saving, and the picking quality of the corncobs is improved.

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 invention provides an aluminum alloy bar reducing casting device and method, and relates to the technical field of casting, the device comprises a tundish, a crystallizer, a structure control device and a traction device; the structure control device is composed of a first sleeve and a cooling module, a reducing cavity is formed in the first sleeve, the inner diameter of the reducing cavity is gradually reduced from the first end to the second end, and the reducing cavity is used for cooling and solidifying the solid-liquid aluminum alloy bar; the traction device comprises a traction head forming die and a power device, the traction head forming die is located at the second end of the reducing cavity, and the power device drives the traction head forming die to move horizontally to pull out the aluminum alloy bar; through plastic deformation and cooling solidification in the reducing cavity, internal defects such as shrinkage porosity of the aluminum alloy are eliminated, grains are refined, and the structure is more compact and uniform; the traction force is improved through tight connection of the traction head and the bar, and the stability of the continuous casting process is enhanced; and the traction rate is accurately adjusted by the power device, so that the aluminum alloy bar which is compact in structure and small and uniform in grain size can be obtained.

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.

The invention relates to the technical field of bridge erection construction, and discloses a large-span continuous-span steel beam belt buckle tower top pushing construction device and method.The large-span continuous-span steel beam belt buckle tower top pushing construction device comprises a pushing platform, a guide beam and a steel beam, the top of the pushing platform is slidably connected with the steel beam, and one end of the guide beam is fixedly connected with the steel beam; the tops of the guide beam and the steel beam are fixedly connected with a plurality of anchoring connecting seats; according to the large-span continuous-span steel beam belt buckle tower pushing construction device and method, the problems that in the prior art, in the large-span pushing construction process, in the maximum cantilever state, the steel beam is large in downwarping, local bending and large in load, and deformation and instability are caused are solved; the length and the weight of the guide beam structure are increased, the wind resistance and the stability of the structure are reduced, and the design difficulty of the guide beam is increased; and meanwhile, the control and operation difficulty of the pushing equipment can also be increased. The construction difficulty is increased, and the construction cost is also increased.

An embodiment of the present invention provides a transparent orthodontic device comprising: a transparent orthodontic body forming a passage for accommodating a tooth to be orthodontic in order to move the tooth from an initial position to a target position; and an occlusal part which is defined in the transparent orthodontic body and is located in an occlusal region in contact with an involution tooth during occlusal. And the thickness of the occlusion part is greater than the thickness of the area except the occlusion part.

The invention relates to an environment-friendly high-toughness fiber reinforced composite material and a preparation method thereof, and belongs to the technical field of wall materials. The carbon fiber reinforced thermal insulation material is prepared from the following raw materials in parts by weight: 20-25 parts of carbon fibers, 30-45 parts of modified reinforced resin, 10-18 parts of diathermanous fiber microchips, 35-45 parts of a cement base material, 10-15 parts of a surfactant, 10-13 parts of a surface toughening agent and 10-20 parts of a styrene-butadiene-styrene block copolymer. By using the diathermanous fiber microchips, the composite material has better infiltration capacity, and more composite materials permeate into the brick through pores in the brick, so that the composite material has better adhesion capacity, the traction force between the bricks is further improved, meanwhile, separation of the composite material and the brick is also facilitated, and the service life of the brick is prolonged. Therefore, the supporting capacity and the waterproof capacity of the wall body are ensured as much as possible.

The utility model provides a special-shaped packaging goods sorting system, which comprises a mounting bracket, an identification control unit and a plurality of sorting units, each sorting unit comprises a lower swing conveying device and a belt conveyor, the plurality of lower swing conveying devices are erected on the mounting bracket, and each lower swing conveying device comprises a plane power section, a lower swing section, a telescopic adjusting device and a conveying belt, the lower swing section is rotationally connected with the plane power section, the telescopic adjusting device is connected with the plane power section and the lower swing section, the conveying belt is wound around the plane power section and the lower swing section, and each belt conveyor is located at the end, away from the plane power section, of the lower swing section and located below the mounting support. The identification control unit comprises a PLC control unit and a plurality of scanning devices, the scanning devices are connected with the plane power section, the PLC control unit is electrically connected with the scanning devices and the telescopic adjusting device, and the technical problem that in the prior art, sorting equipment cannot sort goods which are large in size, heavy or packaged in a special shape is solved.

The invention provides a tire tread structure which comprises a plurality of longitudinal grooves extending in the circumferential direction of a tire, and the longitudinal grooves are formed in the width direction of the tire at intervals so as to divide a tire tread of the tire into two tire shoulder pattern parts and a middle pattern part located between the two tire shoulder pattern parts. The first communicating groove is formed in the middle pattern part and is used for communicating two adjacent longitudinal grooves; wherein the number of the first communicating grooves is multiple, the multiple first communicating grooves are formed in the circumferential direction of the tire at intervals so as to divide the middle pattern part into multiple middle pattern blocks, at least part of the middle pattern blocks are located in a wear heat generation area of the tire, the wear heat generation area has the area S1, and the middle pattern blocks located in the wear heat generation area have the area S2; the area S1 and the area S2 meet the condition that 0.75 S1 < = S2 < = 0.85 S2. The mining dump truck tire effectively solves the problem that a mining dump truck tire in the prior art cannot give consideration to the control performance, the heat dissipation performance, the wear resistance and the cutting resistance at the same time.

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 present application belongs to the technical field of tractors, and relates to a method for regulating the traction passability of a tractor, comprising: taking the connection point between the tractor and the towed object as the traction point, changing the traction point height and / or changing the suspension height to adjust the axle load distribution of the tractor, realizing the regulation of the traction passability of the road surface, and enabling the tractor to pass through different types of soil; the different types of soil include: high compressibility soil, medium compressibility soil and low compressibility soil; E s Soil with a compressibility of less than 4MPa is considered highly compressible soil. E s Soil with a compressibility of ≤15MPa is medium compressible soil. E s Soil with a compressibility greater than 15 MPa is considered low compressibility soil. The present invention can improve traction by changing the traction position.

The present invention applies to carts (1) not ridden by a driver and which have a single direction of travel (FWD) and a single center of rotation when stationary (PCV0). The invention provides a pivoting handlebar (12) on the rear part of the cart (1) that can be freely moved to either side, preventing the driver from having to move laterally during turns. Also provided is an articulated vehicle (0) comprising a combination of a cart (1) provided with a pivoting handlebar (12) and with an element (20) driven behind that transports the driver, both main elements being connected by a hinged structure (21) that is hinged about the cart (1). The pivoting handlebar (12) improves maneuverability and stability, since it prevents the driver from seeking lateral support on the handlebar, thus eliminating the effect of oversteering the vehicle (0) that said support would entail.

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.

The invention provides a crawler-type dual-rotor wall-climbing robot, which can stably adsorb on the walls of different buildings, has a certain obstacle-crossing ability, and is not prone to slippage and overturning. The wall-climbing robot includes: a robot base plate, a two-degree-of-freedom reverse thrust adsorption unit, a front driving unit and a rear driving unit; the rear driving unit is a crawler driving unit; compared with the wheeled driving system of a conventional wall-climbing robot, the crawler-type dual-rotor wall-climbing robot of the invention adopts a crawler driving system, which increases the contact area between the robot and the contact surface, and increases the adhesion and friction of the robot.

A motor vehicle (50) having at least one steering axle (64), at least one drive axle (74, 76) and at least one lifting axle (78), the lifting axle having at least one actuator (104, 106) for raising and lowering the same, wherein the wheels (82, 84) of at least one drive axle can be driven electrically at least in a supporting manner by means of at least one electric machine which can be operated as an electric motor and as a generator and can be driven as a generator in regenerative operation, and wherein the electric machine is connected to a battery (92) and to a control and / or regulating device (94), the control and / or regulating device being designed to control and / or regulate the operation of the electric machine and to control and / or regulate the operation of the lifting axle. The invention provides that a control and / or regulating device (94) is connected to a sensor (120) for detecting wheel slip of wheels (82, 84) of at least one drive axle (74, 76), and that the control and / or regulating device (94) is designed such that, if wheel slip occurs on at least one wheel of at least one drive axle, the control and / or regulating device can send a control command to at least one actuator (104, 106) of a lifting axle (78) during an activated regeneration operation in order to raise the lifting axle and thereby relieve the wheels (86) thereof. The invention also relates to a method for operating such a motor vehicle.

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.

The invention provides a button type electrode plate for magnetic resonance, which comprises a multi-insulating layer, the upper surface of the multi-insulating layer is provided with a boss, the upper part of the boss is provided with a button body, the lower part of the boss is connected with the upper part of a connecting column, the lower part of the connecting column is connected with the upper surface of a contact piece, the edge and the side surface of the contact piece are provided with sleeve seats, and the edge of the boss is provided with an extrusion plate. The boss is connected with the front end of the traction frame, the traction frame is formed by connecting an arc-shaped body and a plate-shaped body, the plate-shaped body is connected with the sleeve base, the sleeve base penetrates through the multiple insulating layers, and when the button body is subjected to downward force, due to the fact that the inner ring of the traction frame is subjected to supporting force abutting against the surface of a fingertip, friction force between the sleeve base and the contact piece is increased. Meanwhile, the inner side edge of the fingertip exerts inward extrusion force on the outer side of the extrusion plate while abutting against the inner ring of the traction frame, the friction force between the extrusion plate and the traction frame is increased, the situation that when a button hole in the button type connector is connected with a button body of an electrode plate, a contact piece extrudes tissue, and pain of a patient is caused is avoided, and the connection difficulty is low.

The invention belongs to the field of logistics transport vehicles, and provides an AGV with an anti-toppling function, which comprises a chassis frame, an anti-toppling device, a steering wheel system, a controller and a sensor, the chassis frame has a first direction and a second direction perpendicular to the first direction, and the first direction is consistent with the length direction of the bottom frame; the steering wheel system is located below the chassis frame and provides power for the chassis frame. The anti-toppling device can move in the horizontal direction in the direction perpendicular to the chassis frame. The anti-toppling device is provided with a first position and a second position; when the anti-toppling device is located at the first position, the anti-toppling device is located on the outer side of the chassis frame; when the anti-toppling device is located at the second position, the anti-toppling device is located in the chassis frame; according to the AGV with the anti-toppling function, the climbing gradient range of the AGV is enlarged, and particularly aiming at the condition of dragging goods, an anti-toppling device and a servo motor are combined, so that the phenomenon that the AGV topples over or a power wheel is suspended in the climbing process is avoided.