18results about How to "Improve steering stability" patented technology

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 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 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.

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.

This invention discloses an air supply device for edible mushroom container cultivation, relating to the technical field of edible mushroom cultivation equipment. It includes: a support frame disposed within a housing; a conveying mechanism array disposed on the support frame; a cultivation component for cultivating edible mushrooms, disposed on the conveying mechanism and capable of moving along the support frame or rotating at a cultivation station under the drive of the conveying mechanism; an air supply assembly disposed below the conveying mechanism and used to supply air to the lower side of the cultivation component; and a return air assembly disposed above the conveying mechanism and used to draw carbon dioxide-containing air from the upper side of the cultivation component. By disposing the air supply assembly below the conveying mechanism and the return air assembly above the conveying mechanism, the airflow flows upward from below the cultivation component, facilitating the removal of carbon dioxide air from its surroundings and lower areas.