31results about How to "Improve steering stability" patented technology

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.

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 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 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 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.

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.

The present invention provides a six-link longitudinal folding frame and an inverted tricycle using the same, comprising: a seat tube link including a short portion and a long portion, wherein the first end of the long portion is integrally connected with the first end of the short portion; the first end of the long portion is provided with a first connecting portion, and the second end of the long portion is provided with a second connecting portion and a third connecting portion; a crossbeam link, wherein the first end is rotatably connected to the first connecting portion; the first end of the locking link is rotatably connected to the middle portion of the crossbeam link; the first end of the shock absorber is rotatably connected to the second end of the crossbeam link; a flat fork link, wherein the first end and the second end of the quadrilateral frame structure are arranged in a clockwise direction; the first end of the flat fork link is rotatably connected to the second connecting portion; the second end of the flat fork link is rotatably connected to the second end of the shock absorber; a cushion link, wherein the first end is rotatably connected to the second end of the locking link; and the second end of the cushion link is rotatably connected to the third connecting portion. The frame has a compact structure in a folded state, a high concentration of components, and a high utilization rate of the internal space after folding, and is convenient for carrying and storage.

The present invention provides a vehicle height control device and method taking into account strong wind driving conditions, the device comprising: a strong wind area determination unit, which is used to obtain wind speed information by utilizing map information corresponding to the wind speed information and current position information of the vehicle, and to generate strong wind area information by comparing the obtained wind speed information with a predetermined reference wind speed to determine the strong wind area; a strong wind driving condition determination unit, which is used to generate strong wind driving condition information by determining the strong wind driving condition based on the strong wind area information and the vehicle speed information at the current position; and a control signal generation unit, which is used to generate a control signal of a vehicle height adjustment device according to the strong wind driving condition information.

This utility model relates to the field of fabric rolling technology, specifically disclosing a finished fabric rolling machine for fabric production, comprising: a base, a slide rail on the top of the base, a machine seat slidably connected in the slide rail, a groove on the machine seat, two pressing shafts rotatably connected in the groove via connecting rods, a tension adjusting rod on one side of the pressing shafts, a connecting ring sleeved on the tension adjusting rod, and a support rod fixedly connected above the connecting ring; a support frame, fixedly connected to the top of the base, a pressing rod fixedly connected inside the support frame, a support plate below the pressing rod, the support plate fixedly connected to the support frame, a guide rod on the support plate, and the guide rod fixedly connected to the support frame; and a lifting mechanism, including a connecting block fixedly connected to the side of the support rod away from the machine seat, the connecting block being a block structure with accommodating space, an adjustable lifting port opened inside along its own height direction, a slider fixedly connected below the adjustable lifting port and to the connecting block, and two springs above both ends of the slider.

This utility model provides a guide roller structure for an alloy continuous casting machine billet, relating to the technical field of guide roller structures. It includes a base plate, with a U-shaped plate fixedly connected to the top of the outer surface of the base plate. A rotating shaft is rotatably connected to the inner wall of the U-shaped plate, and a guide wheel is fixedly connected to the outer surface of the rotating shaft. By setting a disassembly and extension structure, under the action of circular locking blocks and frames, the extension wheel and guide wheel can be assisted in disassembly and assembly, allowing the extension wheel to rotate with the guide wheel. This extends the actual supporting and guiding area of ​​the guide wheel, effectively preventing the guide wheel from being unable to fully support the billet due to its excessive size, thus improving overall guiding stability. Furthermore, by setting a disassembly and cleaning structure, under the action of rectangular locking blocks and frames, a cleaning plate can be assisted in disassembly and assembly, allowing for auxiliary cleaning of the guide wheel and extension wheel, preventing dust adhesion from affecting guidance.

This utility model belongs to the field of quantitative filling technology for beauty essential oils, and discloses a quantitative filling device for beauty essential oils, including a support frame, a synchronous wheel arranged above the support frame, a synchronous belt arranged outside the synchronous wheel, a guide component and a filling mechanism arranged above the synchronous belt, the guide component being close to the feeding end of the synchronous belt, and the filling mechanism being close to the middle of the synchronous belt. The guide component includes a fixing plate for fixing the support, and the fixing plate is provided with two threaded holes, with a threaded rod arranged inside the threaded holes. A transmission block is provided at one end of the threaded rod. By setting the guide component and the filling mechanism in cooperation, it can adapt to essential oil containers of different specifications, ensuring that the containers are accurately delivered to the filling position. At the same time, the filling mechanism drives the quantitative cylinder to work through a hydraulic cylinder, accurately controlling the filling volume of essential oil, thereby improving filling accuracy, ensuring product quality consistency, ensuring filling continuity, and improving production efficiency.

The embodiment of the invention provides a bevel gear clearance adjusting method, a gear shaft clearance adjusting structure, a steering gear and a vehicle, and relates to the technical field of automobile steering systems. The bevel gear clearance adjusting method comprises the following steps that parameters of a bevel gear shaft are obtained; according to the parameters of the bevel gear shaft, the value interval of the displacement coefficient is calculated; according to the maximum value and the minimum value of the displacement coefficient, the included angle between the bevel gear shaft and the axis is calculated; obtaining a production tolerance; calculating the axial displacement range of the bevel gear shaft according to the production tolerance and the included angle; and calculating parameters of the spring according to the axial displacement range. Arranging a spring, a bevel gear shaft, a bearing and a rack; the bevel gear shaft is meshed with the rack, and the bearing sleeves the bevel gear shaft; one end of the spring abuts against the bearing, and the other end of the spring abuts against the end face of the bevel gear shaft. According to the method, the parameters of the spring for adjusting the gap can be determined according to bevel gear shafts of different specifications, so that the gap caused by abrasion between the bevel gear shafts and the rack is eliminated.

Provided is a pneumatic tire that includes a belt reinforcing layer formed of an organic fiber cord, the pneumatic tire allowing for improved steering stability under normal travel conditions and during circuit running while maintaining durability. Two belt layers (7) disposed on an outer circumferential side of a carcass layer in a tread portion is formed of monofilament wires having a wire diameter of 0.30 mm or more and 0.45 mm or less. A belt reinforcing layer (8) disposed on an outer circumferential side of the belt layer (7) is formed of an organic fiber cord that is made of a polyethylene terephthalate fiber and that has an intermediate elongation under a load of 2.0 cN / dtex of from 2.0% to 4.0%. An end (Ec) of the belt reinforcing layer (8) in the tire width direction is disposed between an end (Eb1) of an inner belt layer (7A) in the tire width direction and an end (Eb2) of an outer belt layer (7B) in the tire width direction.

The invention belongs to the field of control algorithms of target turning angle control systems, and particularly relates to a target turning angle control method and system based on steer-by-wire. The target turning angle control method based on the steer-by-wire comprises the steps that the current vehicle speed value and the gear target turning angle of a target turning angle control system during steering are obtained; calculating a first target rotation angle compensation angle and a second target rotation angle compensation angle according to the current vehicle speed value and the gear target rotation angle; determining one of the first target corner compensation angle and the second target corner compensation angle as a current compensation angle according to the current vehicle speed value; and compensating the target rotation angle of the gear by using the current compensation angle. The target rotating angle of the gear is adjusted through the selected compensation angle, and more accurate and stable steering control is achieved. At a low speed and a small steering wheel rotation angle, the compensation can reduce unnecessary transverse movement, and the problem that the transverse movement amount of a target rotation angle control system is too large due to a large steering angle caused by the low speed and the small steering wheel rotation angle is solved.