42results about How to "Improve steering stability" patented technology

The paper rope winding mechanism comprises a workbench, a first motor is fixedly connected to the lower surface of the workbench, a rotating shaft is fixedly connected to the output end of the first motor, the bottom end of the rotating shaft is rotatably connected to the upper surface of the workbench, and a transmission gear is fixedly connected to the outer wall of the rotating shaft; and the outer wall of the transmission gear is in engaged connection with a first tooth pattern plate, a sliding rail is slidably connected to the interior of the first tooth pattern plate, the lower surface of the sliding rail is fixedly connected to the upper surface of the workbench, and the outer wall of the sliding rail is slidably connected with a second tooth pattern plate. The first motor drives the rotating shaft to rotate, the rotating shaft drives the second tooth pattern plate and the first tooth pattern plate to move relatively through the transmission gear, then the two clamping plates are driven to abut against each other oppositely, then the paper rope roller is fixed, when the clamping plates at the two ends move outwards at the same time, the paper rope roller is replaced through the mounting groove, and continuous operation of paper rope winding is met; and the mechanism adapts to paper strings with different width specifications, and the applicability of the mechanism is improved.

The invention discloses an assembling method for a permanent magnet semi-direct-drive motor of a large vertical mill, which comprises the following steps of: completing the assembling of a motor rotor assembly, sleeving and rotationally connecting a supporting plate to the middle part of a motor main shaft, fixedly mounting a motor rotor on the motor main shaft, and forming at least two through holes in the motor rotor and the supporting plate; a motor stator assembly and guide rods with the same number as the through holes in the supporting plate are installed in the speed reducer box body. After the guide rod is aligned with the through holes in the motor rotor and the supporting plate, the motor main shaft is assembled in a sliding mode downwards along the guide rod till the motor rotor reaches the assembling position, the supporting plate is fixed to the speed reducer box body, the guide rod is disassembled, and assembling is completed. According to the invention, the speed reducer box body and the guide rod are vertically assembled, so that directional guiding in the assembling process of the motor rotor assembly can be realized, auxiliary equipment is not needed, the motor rotor assembly can be assembled in place at one time, the assembling convenience of the rotor and the stator of the large permanent magnet motor is improved, and the assembling cost is reduced.

The utility model relates to a steel plate flat welding seam rust removal trolley, which belongs to the field of welding seam pretreatment, and comprises a trolley main body, a sliding plate, a polishing wheel and a motor, the sliding plate is slidably connected into a sliding plate guide hole of the trolley body, the height position of the sliding plate can be locked through a positioning structure, the motor is installed on one side of the bottom end of the sliding plate, and an output shaft of the motor extends out of a receding hole of the sliding plate and is provided with the grinding wheel. And the bottom end of the polishing wheel is in contact with the surface of the welding seam groove of the steel plate. In the walking process of the trolley, abutted seams of steel plates are polished and derusted, and the labor intensity of workers is reduced.

To achieve reduced road noise and improved steering stability, an embodiment of the present invention provides a pneumatic tire in which a carcass ply has a thickness of from 0.50 mm to 2.00 mm, a carcass coating rubber contains: natural rubber and a styrene-butadiene copolymer rubber as diene rubbers; and carbon black having N2SA of from 35 to 140 m2 / g, a hardness (Hs cap) of a cap tread rubber and a storage modulus (E'carcass) of the carcass coating rubber satisfy 5 ≤ (Hs cap) / (E'carcass) ≤ 15.

The utility model discloses a glue roller core rod glue spreader, which relates to the technical field of glue spreaders and comprises a box body, vertical plates are fixedly connected to two sides of the box body, a plurality of groups of chucks are symmetrically arranged on the inner sides of the vertical plates, and folded plates are fixedly connected to the outer sides of the vertical plates; the chuck is arranged on the inner side of the vertical plate through a rotating rod, and the outer wall of the rotating rod is connected with a worm wheel. According to the utility model, the chucks are arranged on the inner side of the vertical plate, under the action of the worm gear and the worm, the plurality of groups of chucks can realize transmission through the rotation of the connecting rod, the stable driving of a single group of second motor is facilitated, compared with the existing gear driving, the rotating accuracy and the steering stability are higher, the driving resources are saved, the use cost is reduced, and the practicability is high. And meanwhile, under the action that the top frame is installed in a lifting mode through the inserting rods, the gluing brush can be installed at different heights, gluing can be conveniently conducted on rubber roller core rods of different sizes, the flexibility of the device is improved, operation is easy and convenient, and practicability is high.

The invention discloses a steer-by-wire data intelligent processing system based on data multi-source analysis, and relates to the technical field of data processing, and the steer-by-wire data intelligent processing system comprises the following steps: obtaining a steer-by-wire vehicle; obtaining dynamic driving information; traversing and matching the dynamic vehicle information in a steer-by-wire database to obtain prediction response information; the prediction response information is calibrated in combination with the dynamic road information, and target response information is obtained; a vehicle body transverse load transfer rate evaluation strategy is called to evaluate and analyze the target response information, and a target vehicle body transverse load transfer rate is obtained; and when the target vehicle body transverse load transfer rate is not in the transfer rate limiting value, emergency steering regulation and control are conducted on the steer-by-wire vehicle. The technical problem that in the dynamic driving process of the vehicle in the prior art, a steer-by-wire system is difficult to flexibly adjust, and consequently the transverse stability of the vehicle is insufficient is solved, and the technical effect of improving the steering stability and safety of the vehicle is achieved by analyzing the stability of the vehicle and triggering emergency steering regulation in real time.

The present invention discloses a high-precision positioning three-roller centering device and a positioning adjustment method thereof, which solves the problem of low positioning accuracy existing in existing equipment. The traditional structure of synchronously driving three rollers through a connecting rod mechanism on the punching machine is changed, and each centering roller is connected to the piston of its own independent servo cylinder. The three independent servo cylinders are connected to the same hydraulic system. By controlling the hydraulic oil of the hydraulic system, the synchronous extension and retraction of the pistons of the three independent servo cylinders are realized. The positioning accuracy of the present invention can reach the micron level, ensuring that the push rod and the rolling center line are completely coincident; a hydraulic motor is connected to the other end of the independent servo cylinder piston, and the rotation of the piston is realized by controlling the hydraulic motor. Through the respective hydraulic motors connected to the respective servo cylinders, the respective angles of the three rollers are adjusted separately, thereby realizing the change of the angle between the centering roller and the rolling line. The present invention has a simple structure, and the servo cylinder improves the positioning accuracy of the centering roller.

To provide a rubber composition for a tire by which excellent steering stability and wet performance are achieved and temperature dependency of satisfactory low rolling resistance is reduced. The rubber composition for a tire contains, in 100 parts by mass of a diene rubber containing 55 mass% or more of a terminal-modified styrene-butadiene rubber, from 60 to 130 parts by mass of silica, from 10 to 50 parts by mass of a thermoplastic resin, and from 2 to 20 mass% of a silane coupling agent with respect to the mass of the silica, the terminal-modified styrene-butadiene rubber having a vinyl content of from 9 to 45 mol% and a glass transition temperature of -45°C or lower, and containing a polyorganosiloxane structure or an aminosilane structure at a terminal.

The utility model provides a kind of steel structure building installation positioning device, belong to steel structure building construction technical field.The device structure is ingenious, and it is good to guide, it is convenient to clamp, can be flexibly disassembled, it is convenient for engineering construction use.The electric hoist of the device is fixedly installed on the one side board surface of fixed plate, and a plurality of fixed length's pull cable are fixedly connected on the other side board surface of fixed plate, the free end of each fixed length's pull cable is fixedly bolted screw rod, the drum of electric hoist is wound pull cable, and the free end of pull cable on electric hoist is scattered into multiple strands, and the free end end of each pull cable is fixedly bolted clamping assembly.The device clamps more stable, and the pulling capacity is stronger, and the guiding stability is high, and the alignment accuracy is high, and the assembly construction safety is improved.

The utility model relates to the technical field of precast concrete frames, in particular to a precast concrete frame bending device which comprises a bending table, four table legs fixedly installed at the bottom of the bending table, a support fixedly installed on the bending table, a controller installed on the support and a transmission assembly fixedly installed at the bottom of the support. A bending assembly is arranged on the transmission assembly, a mounting seat and a fixing seat are fixedly mounted at the upper end of the left side of the bending table, a clamping assembly is arranged on the mounting seat, a precast concrete frame is placed on the inner side of the fixing seat, and an arc groove and a sliding groove are formed in the bending table. The rotating angle of the large gear is controlled through the controller, then the bending angle of the precast concrete frame is accurately controlled, the applicability is improved, meanwhile, the sliding base is in a lead screw jacking mode, in addition, the T-shaped sliding block is arranged at the bottom of the sliding base, the clamping stability in the bending process is guaranteed, and the safety performance is improved.

The invention discloses a double-front-axle steering point position sensitivity analysis and joint optimization method and system, and relates to the technical field of steering point position optimization. Comprising the following steps: S1, acquiring data of each corner, and preprocessing the data; s2, performing frequency domain analysis on the turning angle of the front axle steering drop arm, judging the non-constant-speed disturbance intensity of a universal joint, and analyzing and removing a periodic disturbance component in the turning angle of a wheel to obtain a turning angle trend of the wheel; s3, an ideal steering relation is established, the deviation between the wheel steering angle trend and the ideal steering relation is evaluated, and the steering geometric error degree is recognized; carrying out single-axis step length adjustment on the coordinates of the key structure points, and analyzing and screening out optimized candidate positions; and S4, constructing a joint optimization target, and performing iterative updating in combination with the non-constant-speed disturbance intensity of the universal joint to obtain optimized key structure point coordinates. The problem that structure point position adjustment is misjudged due to the fact that universal joint non-constant-speed disturbance and steering geometric deviation are difficult to distinguish in the point position optimization process of the double-front-axle steering system is solved.

The utility model discloses a kind of safety belt guide rings coated with polymer coating, belong to the technical field of automobile accessories.The safety belt guide ring includes guide ring body, the upper portion of guide ring body has the positioning hole for being fixedly connected with automobile upright column, the lower portion of guide ring body has the waist type mouth for safety belt webbing to pass, further include guide assembly, guide assembly includes the guide shaft that is horizontally installed in waist type mouth middle part, several guide balls are installed in the axial direction of guide shaft with interval, guide ball is rotatably connected with guide shaft;The surface of guide ring body is coated with polymer coating.The utility model is coated with polymer coating by setting guide assembly and on the surface of guide ring body, and the friction between safety belt webbing and guide ring can be reduced.The utility model can effectively improve the webbing hooking caused by burr of guide ring long-term use, in addition, resistance and noise in safety belt pulling process can be reduced, greatly improve the use experience of passenger.

The utility model provides a tire tread structure. A plurality of longitudinal grooves of the tire tread structure are arranged at intervals in the width direction of the tire, so that the tire tread of the tire is divided into a plurality of circumferential pattern parts; the communicating grooves formed in the tire shoulder pattern part are used for communicating the longitudinal grooves with the side part of the tire, and the communicating grooves formed in the tire crown pattern part are used for communicating two adjacent longitudinal grooves; the transverse cutter grooves are provided with bent sections which are arranged in a wave shape or a broken line shape, and transverse cutter grooves are formed in the circumferential pattern part; the reinforcing structure is arranged in the communicating groove and is connected with two groove walls of the communicating groove; wherein the reinforcing structure is provided with a first inclined surface, and the first inclined surface is used for limiting and stopping foreign matters entering the communicating groove. The utility model solves the problem that the tire in the prior art cannot stably run under special road conditions in summer and winter.

The utility model discloses a novel chain guide assembly for a bicycle derailleur, which comprises a guide plate, a transmission part, a transmission part fixing cap, an upper guide wheel and a lower guide wheel, the lower guide wheel comprises a lower guide wheel body, a first lower guide wheel bearing protection pressing end cover, a lower guide wheel rotating bearing and a second lower guide wheel bearing protection pressing end cover. According to the chain guide assembly, the problems that environmental pollutants such as silt, rainwater and liquid enter a guide wheel system to cause speed change failure and even chain separation and the like of an existing chain guide assembly are solved, and a rider can have a lighter and more comfortable riding feeling; and meanwhile, the lower guide wheel main body can be freely switched in different road condition scenes such as leisure riding, mountain cross-country, daily training or competition field racing, so that the speed control system can obtain the optimal working condition.

The present invention provides an OLED screen test bending machine, including a cabinet, a bending mechanism and a pressure sensor, the cabinet is provided with a bending mechanism and a pressure sensor, the bending mechanism includes a ballast platform, a placement platform and a moving device, ballast platforms are provided on both sides of the placement platform, the moving device includes a plurality of moving components, namely a lateral moving component and a longitudinal moving component, the ballast platform is connected with the lateral moving component to realize the left and right movement of the ballast platform, the placement platform is connected with the longitudinal moving component to realize the up and down movement of the placement platform, the pressure sensor is located below the placement platform, and is used to test the pressure when the OLED screen is bent. The present invention provides an OLED screen test bending machine, which has strong versatility and can realize bending on both sides, has higher bending experiment efficiency, more stable and objective experimental results, and is compatible with a large span of OLED screen sizes.

The plunger pump comprises a pump shell, a plunger and a driving mechanism, a water distribution channel is internally provided with a water distribution one-way valve, the water distribution one-way valve comprises a valve seat ring, a valve cylinder, a valve plate and an elastic piece, the valve seat ring is coaxially arranged on the water distribution channel, the axial end of the valve cylinder is arranged on the side, close to a cylinder sleeve, of the valve seat ring, and the axial end of the valve cylinder is arranged on the side, close to the cylinder sleeve, of the valve seat ring; a through hole is formed in the center of the valve seat ring, the valve plate is arranged on the valve cylinder in a sliding mode, the elastic piece is arranged on the valve cylinder, and the elastic piece drives the valve plate to abut against and seal the through hole. Supporting blocks are arranged at the upper end and the lower end of the valve plate, and supporting rolling wheels are rotationally connected to the supporting blocks. According to the scheme, the valve plate is prevented from inclining through the transmission chain of the supporting blocks and the supporting rollers in the rolling grooves in the valve cylinder, fluid can smoothly pass through in cooperation with the design of the water passing grooves, and the problems that the valve plate of the water diversion one-way valve inclines due to abrasion and is not tightly closed and noise is high are solved.

The novel air cylinder comprises an air cylinder body, a piston rod is movably connected to the inner wall of the air cylinder body, a lower positioning plate is fixedly connected to the lower end of the air cylinder body, an inner limiting movable groove is formed in the upper end of the lower positioning plate, and a rotary control frame is fixedly connected to the front end of the piston rod. According to the novel air cylinder, a second control motor on the inner wall of the rotary control frame drives a rotary connecting rod and can drive the rotary connecting rod to rotate and move, a first control motor drives a penetrating rotary rod to drive a rotary block to swing, meanwhile, a swing arm is driven to swing, and a swing structure can adapt to different working angles and positions; according to the air cylinder, the air cylinder can be applied more flexibly and diverse, in automatic equipment, a complex movement track can be achieved, meanwhile, the swing structure can achieve multi-step action combination such as material taking, overturning and feeding, and therefore the working efficiency is improved.

The invention belongs to the technical field of automobile steering control, and provides a vehicle pivot steering control method and system and application, and the method comprises the following steps: in response to a pivot steering instruction, judging whether a vehicle meets a pivot steering condition or not; if yes, an electric differential steering strategy is executed, and the electric differential steering strategy comprises the steps that reference torque needed for driving is calculated based on the dynamically-determined target wheel speed, and when the reference torque is within the allowable torque range, the rotating speed of rear wheels of the vehicle is controlled to be larger than the rotating speed of front wheels, and the rotating directions of the rear wheels are opposite to those of the front wheels; and if the pivot steering condition is not met or the reference torque exceeds the allowable torque range, a mechanical auxiliary strategy is executed, and vehicle body steering is achieved by driving an auxiliary steering mechanism of the vehicle. In-situ steering of the vehicle can be quickly completed, so that the problem of difficulty in passing due to incapability of turning around in situ is effectively solved.

This invention provides a medical waste sorting and collection garbage truck for operating rooms. Its structure includes: a sealed top cover, a sorting loading box, a load-bearing plate, pulleys, and a push rod. The invention further improves upon the sorting loading box by using adsorption blocks and protrusions on the bottom plate of the box to enhance the verticality of the connection with the load-bearing plate. This allows the guide plate of the guide structure to be inserted linearly into the output slot on the side of the box, followed by assembly using assembly blocks. Simultaneously, a restraining plate is inserted into the inner wall of the loading slot to limit its movement. Finally, when retrieving waste, it is directly pushed towards the output slot, allowing the waste to move through the guide plate to the inclined plate position, and finally output to the flat plate position. This achieves rapid waste retrieval, replacing the original disassembly and inverting process. Therefore, it improves the efficiency of the garbage truck in retrieving different types of medical waste and increases its own operational strength.

This invention provides a tire tread structure, including multiple longitudinal grooves spaced apart along the width of the tire to divide the tread into multiple circumferential tread portions. Connecting grooves are provided on the circumferential tread portions; the connecting grooves on the shoulder tread portion connect the longitudinal grooves and the side of the tire, and the connecting grooves on the crown tread portion connect two adjacent longitudinal grooves. Lateral sipes have wavy or zigzag curved sections, and lateral sipes are provided on the circumferential tread portions. Among the lateral sipes spaced apart from the tire's center plane S, the curved sections of the lateral sipes located near the outer side of the tire on the center plane S have a wave pitch S1, and the curved sections of the lateral sipes located near the inner side of the tire on the center plane S have a wave pitch S2, wherein the wave pitches S1 and S2 satisfy: S1 > S2. This invention effectively solves the problem in the prior art that tires cannot maintain stable driving under special road conditions in both summer and winter.

The utility model discloses a kind of anticorrosion guiding limit blocks, the section of anticorrosion guiding limit block is elephant trunk shape, is set to the both sides of pipe shoe, and pipe shoe includes the base set on platform, anticorrosion guiding limit block includes the first plate material and second plate material being set perpendicular to each other, and second plate material is connected in the middle position of first plate material, and second plate material is provided with avoidance slot, avoidance slot is below the junction of first plate material and second plate material, the distance between second plate material and base is greater than first plate material;Gap is set between base and first plate material, and avoidance slot can be communicated with gap.The guiding form of the original T-shaped steel cutting of the anticorrosion guiding limit block is improved into special-shaped steel plate welding form, both meet the original functional gap requirement, and also meet the first anticorrosion construction operation space, effectively guarantee the guiding block anticorrosion construction quality, elephant trunk shape section and both sides arrangement enhance guiding stability, convenient for welding operation, improve welding quality and improve pipe shoe installation precision.

The utility model relates to mould technical field, concretely relates to high rigidity worm drive's mould guide mechanism, including fixed mould plate and movable mould plate, the bottom surface of movable mould plate is fixedly installed with a plurality of guide bushings, the upper surface of fixed mould plate is fixedly installed with a plurality of guide posts, and the guide bushing is sleeved on the guide post and is slidably connected between the guide post, the side of movable mould plate is fixedly installed with threaded boss, the side of fixed mould plate is fixedly installed with heat dissipation box, the heat dissipation box is rotatably connected with the vertically arranged screw rod, the screw rod passes threaded boss and is threadedly connected between threaded boss, and the heat dissipation box is provided with worm, worm wheel and drive motor for driving the rotation of screw rod. The utility model has high rigidity stable transmission, reaches the effect of enhancing mechanism bearing capacity and service life.

The application discloses a power distribution cabinet of an energy storage system and relates to the technical field of power distribution cabinets.The power distribution cabinet comprises a power distribution cabinet body, a waterproof cover is fixedly installed on the top of the power distribution cabinet body, an electric telescopic rod is fixedly installed at one end of the power distribution cabinet body away from the waterproof cover, a base is fixedly installed at the end of the electric telescopic rod away from the power distribution cabinet body, and an elastic assembly is arranged on the power distribution cabinet body.The elastic assembly is inserted into a rectangular through hole through a circuit switch, then the circuit switch is pressed to extrude the mounting plate, the mounting plate is stretched to stretch the first spring, the connecting plate is pressed to extrude the third spring, the circuit switch is pushed, and after being moved to a proper position, the connecting plate is loosened to drive the limiting blocks to move upwards, the two limiting blocks are used for limiting the circuit switch, the circuit switch is convenient to mount and dismount, the mounting stability of the device is improved, and the working efficiency of the device in dismounting and maintenance is improved.

The clamping device of the automobile tie rod assembly comprises a bottom plate and a sliding rod, the sliding rod is sleeved with two sliding plates, the sliding plates are fixedly connected with a clamping base, the clamping base is fixedly provided with a clamping assembly, the clamping assembly is provided with a tie rod in a clamping mode, the bottom plate is fixedly provided with an anti-seismic assembly, and the anti-seismic assembly is fixedly connected with the clamping base. And the anti-seismic assembly comprises a third fixing seat and a limiting stopper, a connecting rod is fixedly connected to the third fixing seat, a damping cavity is formed in the connecting rod, a damping rod is slidably connected into the damping cavity, and a damping spring is fixedly connected into the damping cavity. According to the scheme, the transverse pull rod is clamped through the clamping assembly, and the anti-vibration assembly arranged on the outer circle face of the transverse pull rod in the sleeving mode is arranged at the position of the ball head pull rod, so that when the transverse pull rod jumps in the steering process, the jumping amplitude of the transverse pull rod is limited to a certain degree, and the purpose of improving the steering stability of the transverse pull rod is achieved.

The invention provides a tread pattern structure of a model car tire, a plurality of pattern units are symmetrically and uniformly distributed on the tread of the tire at intervals along the circumferential direction of the tire, and each pattern unit comprises a tread center pattern group and a tire shoulder pattern group which are horizontally arranged along the axial direction of the tire; every two tread center pattern groups adjacent in the circumferential direction are arranged in a staggered mode at intervals in the axial direction, and each tread center pattern group is composed of two center sub-pattern blocks which are arranged at intervals in the circumferential direction to form a stack; the tire shoulder pattern group is composed of two tire shoulder sub-pattern blocks which are arranged at intervals in the circumferential direction to form a stack, the long sides of the tire shoulder sub-pattern blocks are located in the axial direction of the tire, and the short sides of the tire shoulder sub-pattern blocks are located in the circumferential direction of the tire; the included angle between the side wall of the axial inner side, close to the center of the tread, of each central sub pattern block and each tire shoulder sub pattern block and the normal plane of the edge of the top surface of the pattern block is 0 degree; and each central sub-pattern block and each tire shoulder sub-pattern block are only formed by an independent arc surface between the side walls of the axial outer sides, far away from the center of the tire tread, and the top surfaces of the central sub-pattern blocks and the tire shoulder sub-pattern blocks.

In order to solve the problems of easy deviation during braking at medium and high speeds and rollover accidents caused by inconsistent balance of side three-wheelers, the present invention provides a double-body reverse three-wheeled motorcycle, including a frame, wheels, an engine and a transmission system, characterized in that the wheels include two front wheels and a rear wheel centrally arranged behind the middle position of the two front wheels, the two front wheels are symmetrically distributed on the left and right sides of the front end of the frame, the rear wheel is connected to the rear of the frame, the engine, the transmission system, the sidecar cabin, the driver's saddle, and the fuel tank are all arranged above the frame, the fuel tank and the driver's saddle are separately arranged on the left and right sides of the frame with the sidecar cabin, and the engine is located below one side of the fuel tank and the driver's saddle, so that the balance of the whole vehicle is greatly improved, the problems of deviation during high-speed braking and easy rollover during high-speed small-radius right turns of traditional side three-wheeled motorcycles are overcome, and the problem of rollover caused by change of center of gravity during medium-speed and small-radius turns of positive three-wheeled motorcycles is overcome.

The utility model discloses an automobile control arm which comprises an arm body and a ball head assembly arranged at one end of the arm body, the ball head assembly comprises a ball shell, an upper ball seat, a lower ball seat and ball head pins, the upper ball seat and the lower ball seat are arranged in the ball shell, and the ball head pins are arranged in the upper ball seat and the lower ball seat. A threaded section is arranged on the inner circumferential wall of the spherical shell and is in threaded fit connection with the outer circumferential wall of the fine adjustment threaded sleeve, conical surfaces matched with each other are arranged on the inner circumferential wall of the fine adjustment threaded sleeve and the outer circumferential wall of the lower ball seat, and a plurality of U-shaped contraction grooves are formed in the conical surface of the lower ball seat around the central axis. And the fine adjustment screw sleeve extrudes the lower ball seat through the conical surface to radially contract the lower ball seat when rotating. The structure can compensate the abrasion clearance without increasing the axial size, and the steering stability is better.