27results about How to "High steering precision" patented technology

The invention discloses a drive-by-wire steering system of a mining dump truck. The drive-by-wire steering system comprises a touch feedback device, a steering control valve, a steering mechanism, a steering angle sensor, a vehicle speed sensor and a controller. The touch feedback device is arranged on the lower portion of the steering wheel, connected with the controller through a CAN bus and used for detecting the rotation angle of the steering wheel and sending a generated rotation angle signal to the controller; the steering control valve is connected with the signal input end of the steering mechanism through a signal line and connected with the controller through a CAN bus, and an output port of the steering control valve is connected with the steering mechanism through a pipeline, receives control signals of the controller and outputs hydraulic flow to the steering mechanism. And the controller forms a control signal according to the deflection angle signal and the driving speed signal. The invention further discloses a mining dump truck and a steer-by-wire method. A hydraulic physical pipeline between the steering wheel and the steering valve is omitted, and steering is achieved in a drive-by-wire mode.

The application discloses a control method, an electronic device, a vehicle, a storage medium and a program product, and the control method is applied to a vehicle and comprises the following steps: obtaining a set turning radius input by a target object; and adjusting the rotating speed of at least one target wheel of the vehicle, so that the turning radius of the vehicle reaches the set turning radius. By obtaining the set turning radius input by the target object, and then adjusting the rotating speed of the at least one target wheel of the vehicle, so that the turning radius of the vehicle reaches the set turning radius, the effect that the vehicle can be controlled to flexibly turn at an arbitrary turning radius is achieved without adding hardware, the effect that the rotation center of the vehicle can be at a wheel, a certain point in the vehicle or a certain point outside the vehicle is realized, the control is simple and easy to realize, and problems, such as unnecessary collision or occupying too many lanes due to too large turning radius, can be avoided, the steering precision is improved, and the flexibility and maneuverability of the vehicle are improved.

This utility model provides a front suspension for racing vehicles, belonging to the field of suspension technology. The front suspension includes a rocker arm, an upper wishbone, and a lower wishbone. One end of the upper and lower wishbone is rotatably connected to the front subframe. The rocker arm is rotatably connected to the front subframe via a shock absorber. A steering pushrod is located below the rocker arm and is connected to the rocker arm via a connecting rod. The rocker arm is connected to the lower wishbone via the pushrod. This device, through the design of a multi-directional ball joint structure, enables each hinge point to have multi-dimensional swing capability, improving the device's motion adaptability during multi-state switching. When using this device, the device can match the amount of wheel bounce by controlling the travel of the shock absorber in different states: extending to the upper limit of travel when the wheel is suspended, contracting to the middle travel when fully loaded, and compressing to the lower limit of travel during extreme bounce.

The utility model discloses a novel disc-type steering mechanism of a three-wheel passenger car, which belongs to the technical field related to vehicle accessories and comprises a frame, a front fork, a steering gear box, a steering connecting rod, a steering rocker arm, a steering column, a steering disc, a front fork vertical pipe, a steering gear box support, a steering column support, a ball head, a front wheel connecting bolt, a hexagon bolt and a steering column. The rear disc type steering mechanism is compact in structure and reasonable in arrangement, the overall arrangement space is reduced, the driving space of a driver is increased, and the driving comfort and pleasure are further improved; all the parts are arranged in the cab, the sealing performance of the whole vehicle is improved, the installation efficiency of the whole vehicle is improved, and the device is suitable for being further popularized and used in large and small vehicle factories.

The present invention discloses a driving mechanism, a bearing base, a steering control method and a wall-climbing robot. During the operation of the driving mechanism of the present application, under the drive of the first driver, when the connecting structure rotates forward, the first connecting rod can pull one of the driving wheel structures to rotate forward relative to the bridge frame, and the second connecting rod can pull another of the driving wheel structures to rotate forward relative to the bridge frame. When the connecting structure rotates reversely, the third connecting rod can pull one of the driving wheel structures to rotate reversely relative to the bridge frame, and the fourth connecting rod can pull another of the driving wheel structures to rotate reversely relative to the bridge frame. Furthermore, when the driving mechanism of the present application is working, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod can all bear tensile force, thereby reducing the probability of deformation and bending of the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod, thereby improving the steering accuracy of the driving wheel structure.

The invention discloses a front wheel steering control method, a vehicle control system, electronic equipment and a medium. Comprising the steps that fault detection is conducted on multiple components in a steering system of a target vehicle, and the steering driving state of the target vehicle is determined based on fault detection results of the multiple components in the steering system; under the condition that the target vehicle is in the non-emergency driving state, a control instruction for a hydraulic pump station is generated based on pressure data of the hydraulic pump station in the steering system; based on the driving speed, the angle data and driving modes, a compensation torque control instruction is determined, and the driving modes comprise the intelligent driving mode and the manual driving mode; and the control instruction and the compensation torque control instruction are transmitted to a hydraulic pump station and an anti-explosion steering motor tubular column assembly of a steering system correspondingly, so that the anti-explosion steering motor tubular column assembly and the hydraulic pump station cooperatively control front wheel steering of the target vehicle. According to the scheme, the compensation torque can be determined in different driving modes, so that the front wheel steering control can be quickly responded.

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 relates to the technical field of lifting equipment, in particular to a trolley chassis with a boom type steering structure. A trolley chassis with a boom type steering structure comprises steering wheels used for controlling and driving a trolley to move and steer, power wheels used for controlling and driving the trolley to move and brake, a frame used for installing the steering wheels, the power wheels and a control system assembly of the power wheels, and the steering wheels are controlled to swing through a swing oil cylinder and achieve steering control. The two ends of the swing oil cylinder are connected with the steering wheels on the two sides of the vehicle frame in a control mode and are synchronously controlled in a telescopic mode. The two ends of the two-way oil cylinder are connected with the steering wheels on the two sides of the frame respectively, synchronous stretching and retracting and same-angle steering of the steering wheels on the two sides are achieved through driving of the hydraulic system, the problem that steering is not synchronous due to mechanical gaps, response lag and the like in a traditional multi-motor or multi-steering-engine system is effectively solved, the advancing track of the trolley is more accurate, and the stability is higher. And the stability and the safety during steering are obviously improved.

The present invention relates to a composite film quality detection device for high-temperature sterilization and sealing, comprising: a frame provided with a table, a controller connected to the frame, a visual detection system, a medium container arranged at the lower side of the table, a sample bottle arranged between the table and the medium container, a transfer and steering device for clamping the sample bottle, a quantitative sampler for cutting and testing composite film samples, a heat sealing device for heat-sealing the composite film samples on the mouth of the sample bottle, a metering filling device for filling the sample bottle with contents, and a composite film sample shifting device for moving the composite film sample from the quantitative sampler to the heat sealing device; the visual detection system is connected to the lower end of the table. The composite film quality detection device for high-temperature sterilization and sealing can prevent the product from being scrapped after filling by detecting the quality of the composite film in advance.

The invention relates to the technical field of articulated vehicle steering, aims to solve the problems that an existing hydraulic steering system is high in energy consumption, low in precision, slow in response, insufficient in transverse rigidity, prone to causing vehicle body oscillation and the like, and discloses drive-by-wire electromechanical steering equipment and method for an articulated mining vehicle. The required torque is calculated by the data processing terminal and then is transmitted to the inverter through the CAN bus so as to drive the servo motor; the servo motor drives the enveloping worm through the planetary reduction gear, so that the turbine set is driven, and steering of the rear vehicle body of the hinged type mining vehicle relative to the front vehicle body of the hinged type mining vehicle is achieved. The system has the advantages of energy conservation, high efficiency, accurate response, high stability, fault redundancy capability, simplified structure and low maintenance cost, and the steering performance and reliability of the articulated mining vehicle under severe working conditions are remarkably improved.

The utility model discloses a differential transmission mechanism of a crawler, which is characterized by comprising two groups of symmetrical differential transmission components, and each group consists of a shell and a built-in gear mechanism and is used for directly driving crawler wheels. In addition, the device further comprises a straight movement transmission assembly and a steering transmission assembly, linkage with the differential transmission assembly is achieved through a driving shaft A, a driving shaft B and related bevel gears, and accurate advancing, retreating and steering control is guaranteed. And the steering transmission assembly adopts two groups of transmission half shafts which are linked with a shell mechanism of the differential assembly to realize symmetrical meshing. In order to enhance the adaptability in different vehicle types, the scheme provides an I-type power source connection scheme and an II-type power source connection scheme. By means of the design, the operation performance and safety of the crawler are optimized, the assembling applicability is improved, and the crawler design solution is more efficient, flexible and reliable.

This invention discloses a vehicle corner module device and a vehicle, relating to the field of vehicle technology. The vehicle corner module device includes: a wheel hub assembly and a steering knuckle, with the steering knuckle disposed on the wheel hub assembly; a steering assembly, including: a steering drive component and a tie rod, the tie rod being connected to the steering knuckle, the steering drive component being configured to drive the tie rod to move and drive the wheel hub assembly to steer; and a steering angle sensor, disposed on the steering knuckle. Thus, the steering of each wheel hub assembly can be driven by the corresponding steering drive component, achieving decoupling of wheel steering control, improving chassis dynamic performance, and increasing the wheel steering angle range to achieve large-angle steering. Furthermore, by placing the steering angle sensor on the steering knuckle, the steering knuckle rotation angle can be directly and in real-time acquired to directly and in real-time obtain the wheel hub assembly steering angle without complex calculations, and is unaffected by wear or deformation of components such as the tie rod, resulting in high steering accuracy and fast response speed.

The utility model relates to a new energy automobile auxiliary turning device which comprises a steering transmission rod, the lower end of the steering transmission rod is connected with a steering angular velocity sensor, the lower end of the steering angular velocity sensor is provided with a gear shaft, the gear shaft is connected with a rack rod in a meshed mode, and the outer side of the gear shaft and the outer side of the steering angular velocity sensor are wrapped with a protective shell. The right side of the rack rod is fixedly connected with a screw, the screw is movably connected with a ball screw transmission mechanism, one side of the ball screw transmission mechanism is connected with a driving motor, the left side of the driving motor is connected with a heat dissipation connecting cavity, the left side of the heat dissipation connecting cavity is connected with an air pipe, and the left side of the air pipe is connected with a protective shell; the overall steering precision is improved through a ball screw transmission mechanism, the rear end of the motor is connected with a heat dissipation cavity, and air flow brought out by a heat dissipation fan of the motor is used for transmitting wind power to a gear shaft and a rack rod in a protection shell through an air pipe.

The utility model provides a kind of servo steering rudder wheel, it is related to steering rudder wheel technical field, comprising: support assembly, the support assembly includes mounting plate, bottom plate and slewing bearing, the slewing bearing includes inner ring and outer ring with outer gear, the outer ring is rotatably connected with the inner ring, the outer ring of the slewing bearing is connected with the bottom plate, and the inner ring is connected with the mounting plate;Wheel structure is connected with the bottom plate.The utility model has the beneficial effects: through the vertical connection arrangement of support assembly, wheel structure and drive component, the rudder wheel rotation radius is smaller compared with traditional driving mode, while the installation height of the rudder wheel on vehicle body can be reduced;Secondly, the double-wheel layout of wheel in wheel structure and the stable connection mode of mandrel assembly ensure the stability of wheel in the process of rotation, avoid loose phenomenon, effectively prolong the service life of rudder wheel, solve the problem of poor wheel installation stability in multi-wheel rudder wheel system.

This utility model belongs to the field of agricultural machinery technology and discloses a high-performance drive front axle for high-horsepower wheeled tractors. It includes an axle housing, with a Torsen differential connected to the inner end of the central part of the axle housing. Steering knuckle assemblies are connected to both ends of the axle housing, with wheel hub assemblies connected to the outer ends of the steering knuckle assemblies. A hydraulic cylinder assembly is connected to the outer end of the central part of the axle housing, and each pair of steering knuckle assemblies is connected to the hydraulic cylinder assembly. This solution achieves a comprehensive improvement in the load-bearing capacity, torque distribution efficiency, steering accuracy, and sealing reliability of the drive front axle by integrating a Torsen differential inside the axle housing, optimizing the high-strength structural design of the axle housing and steering knuckle assemblies, using an integrated forged tie rod and an extra-large ball joint hydraulic cylinder assembly, and configuring high-temperature resistant seals at the connection points. This effectively meets the heavy-load operation requirements of high-horsepower wheeled tractors under complex working conditions, significantly extends the service life of the front axle, reduces the failure rate, and improves the stability and operating efficiency of the entire machine's power system.

This application provides a method, apparatus, and electronic device for determining steering ratio, relating to the field of vehicle technology. The method includes: acquiring the vehicle speed; if the vehicle speed is within a preset low-speed range, determining a first steering ratio linearly positively correlated with the vehicle speed based on a preset linear function; if the vehicle speed is within a preset medium-speed range, determining a second steering ratio satisfying the target yaw rate gain based on a preset target yaw rate gain and the vehicle speed; if the vehicle speed is within a preset high-speed range, determining a third steering ratio nonlinearly positively correlated with the vehicle speed based on a preset nonlinear function; wherein the nonlinear growth rate corresponding to the nonlinear function is negatively correlated with the vehicle speed. This application employs different steering ratio determination logics for different speed ranges, which is beneficial for meeting the actual steering requirements corresponding to different speed ranges.

The double-wheel electric differential steering wheel with the hydraulic jacking function is characterized in that the double-wheel electric differential steering wheel comprises a plunger type hydraulic jacking mechanism and two driving units, and the driving units are arranged on the two sides of the plunger type hydraulic jacking mechanism respectively; the driving unit is composed of a reduction gearbox and wheels, the reduction gearbox comprises a box body and a box cover, the box body and the box cover are connected through bolts, a speed reducer is installed on one side of the box body, and a walking motor is installed at the input end of the speed reducer; and the wheels are installed on the other side of the box body through hubs, the two box covers are connected with a connecting plate through screws, the two ends of the connecting plate are fixedly connected and hinged to fixing bases correspondingly, and two hinge shafts are symmetrically welded to the plunger type hydraulic jacking mechanism. The invention relates to the technical field of steering wheels, in particular to a double-wheel electric differential steering wheel with a hydraulic jacking function. The technical problem to be solved by the invention is to provide the double-wheel electric differential steering wheel with the hydraulic jacking function, so that material transfer is facilitated.

The utility model discloses a tracked robot gearbox which comprises a box body, a power input shaft, a left power output shaft, a right power output shaft, a middle shaft, a gear shifting shaft, a left variable speed shaft and a right variable speed shaft are arranged in the box body, and a left planetary reducer and a right planetary reducer are arranged on the left variable speed shaft and the right variable speed shaft respectively. A steering shaft for receiving the torque of the steering motor and a reverse shaft for reversely outputting the torque of the steering shaft are also arranged in the box body, and a steering gear for transmitting the torque to the left planetary reducer or the right planetary reducer is arranged on each of the steering shaft and the reverse shaft; the left variable-speed shaft and the right variable-speed shaft are sleeved with a left steering control gear and a right steering control gear respectively, and the planet carrier transmits torque to the left power output shaft and the right power output shaft respectively. According to the tracked robot gearbox, in the steering process of a robot, power is continuously output to crawlers on the two sides, power of the crawlers on one side cannot be cut off, and the robot steers stably and is good in continuity and high in steering precision.

This utility model discloses a hub motor connection flange, comprising an integrally formed stepped flange body, consisting of a disc-shaped first part and an inner convex ring-shaped second part. A polygonal shaft connection hole is provided in the center for insertion and mating with the stator shaft of the hub motor, and is secured by a locking screw to ensure high-precision circumferential positioning and prevent loosening and angular backlash. The flange body has a host connection hole and a locking hole on its side, supporting rapid assembly and maintenance. The inner convex ring has a connection island, optimizing structural strength and weight. The flange is made of aluminum alloy, titanium alloy, or magnesium alloy, combining lightweight and high strength. This solution effectively solves the problems of loose connection, inaccurate positioning, and excessive weight in existing technologies, and is suitable for scenarios with high precision and reliability requirements, such as robotic vacuum cleaners.

The invention relates to the technical field of ship intelligent equipment, in particular to a target tracking method and tracking system applied to an intelligent water cannon. The method comprises the following steps of: performing multi-source data acquisition on a target and a target environment by adopting a sensor, preprocessing the collected multi-source data, and fusing multi-source image data by adopting a data fusion technology; extracting target features from the multi-source image data by adopting a target extraction algorithm; a multi-target tracking model is established, target features extracted from the multi-source image data are tracked in real time, a multi-target tracking control strategy is introduced, and tracking priority ranking is performed on multiple target points; and the water cannon execution mechanism realizes steering and water flow injection control of the water cannon based on a PID control algorithm. The influence coefficient kv of the water flow jetting speed and the influence coefficient kp of the priority score on the water flow jetting speed serve as compensation items of a PID control algorithm, the influence of the water flow jetting speed on the steering precision of the water cannon is corrected, and the control precision of the water cannon is improved.

The utility model discloses a tire corner measuring device for an intelligent driving container truck, which relates to the technical field of tire corner measurement and comprises a front wheel structure, a mounting hole and a front axle master pin are arranged in the front wheel structure, and one end of the front axle master pin is inserted into the mounting hole. The first angle sensor is arranged on the front axle main pin, and the second angle sensor is arranged in the upper cover, so that the steering angle of a tire can be monitored and measured in real time, the steering system abrasion caused by long-time use is favorably compensated, the accurate transmission of the steering angle of a steering wheel and the steering ratio of the tire is ensured, and the steering accuracy is improved. Therefore, the steering accuracy and reliability of the intelligent driving container truck during container carrying in a port are improved, the abrasion condition of the steering system can be monitored in real time, abrasion is compensated through adjustment, damage caused by abrasion can be reduced, the service life of the steering system is prolonged, the maintenance cost is reduced, and the service life of the intelligent driving container truck is prolonged. And the downtime caused by the fault of the steering system is also reduced.

The utility model discloses a steering limiter, a steering system and a road marking machine, the steering limiter is connected with the steering system of the road marking machine, the steering limiter is used for limiting the rotation angle of the steering system, and the steering limiter comprises a shell, a limiting device and a driving device, the transmission shaft is movably connected with the shell in a sleeving mode in the first direction, and the transmission shaft is in transmission connection with the steering system; the limiting shaft is movably connected with the shell in a sleeving mode in the second direction, the limiting shaft is in meshing transmission with the transmission shaft, and the first direction is perpendicular to the second direction; and the limiting part is arranged on the side, in the second direction, of the shell, the limiting part is connected with the limiting shaft in a sleeving mode, and the limiting part is used for limiting the rotation angle of the limiting shaft. According to the steering limiter, the steering system and the road marking machine, the steering precision and stability of the road marking machine can be effectively improved, and the operability of technicians is synchronously improved.

The present invention relates to a thin coal seam shuttle car based on a synchronous gear space steering mechanism, and belongs to the technical field of underground coal mine transportation vehicles. The present invention comprises a receiving part, a walking part, a steering mechanism, an intermediate frame, a discharge part, a driving control and a cable winding device. The receiving part and the intermediate frame are connected by bolts, the discharge part and the intermediate frame are hingedly connected by a pin shaft, the steering mechanism is connected to the intermediate frame, the driving control and the cable winding device are installed on the intermediate frame, and the steering mechanism is based on a synchronous gear space steering mechanism. The present invention broadens the application scope of the shuttle car, improves the mining efficiency of thin coal seams, and reduces the labor intensity of workers.

The utility model relates to a kind of auxiliary positioning tool for flange valve, it includes workbench, connecting sleeve, rotary table and two groups of clamping arms, two groups of the clamping arms are on the rotary table and move towards, clamping assembly is provided on the clamping arm, the clamping assembly includes clamping block one, clamping block two and hydraulic cylinder, the clamping block one and hydraulic cylinder are all fixedly connected on the clamping arm, the output end of the hydraulic cylinder connects the clamping block two, clamping block one and hydraulic cylinder are all fixedly connected on clamping arm, the output end of hydraulic cylinder connects clamping block two, hydraulic cylinder is started and drives the clamping block two of output end to move, realize the adjustment of the distance between clamping block two and clamping block one, to adapt to the flange valve of different size length, this mode is simple in operation and higher practicality.

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.

The invention relates to the field of airborne radar systems, and in particular to an airborne radar precision steering device, comprising a driving mechanism, a steering mechanism and a control panel, wherein the steering mechanism is rotatably arranged on the top of the driving mechanism for adjusting the steering precision of a radar pot cover, the control panel is fixedly arranged on the driving mechanism, the driving mechanism comprises a mounting seat, a protection box, a rotating assembly and a rotating assembly, the protection box is fixedly arranged on the top of the mounting seat, the rotating assembly is fixedly arranged in the protection box, the rotating assembly is fixedly arranged on the top of the rotating assembly, and the rotating assembly is fixedly connected to one side of the top of the protection box, the steering mechanism comprises a swinging assembly, an indicating assembly, an adjusting assembly and two groups of limit assemblies, and the invention can precisely steer an airborne radar control antenna by manipulating a controller to input control information to a push rod in advance and start a motor in the protection box, the operation is quick, safe and efficient, and the steering precision of the airborne radar is greatly improved.

A self-aligning mechanism and a steering gear assembly, the self-aligning mechanism comprises a fixed shaft fixedly mounted on the outside of an input shaft, a bearing rotatably mounted on the fixed shaft; a cam sleeve sliding sleeve is arranged on the outside of the input shaft, the top surface of the cam sleeve is an arc surface arranged obliquely and rollingly matched with the outer wall surface of the bearing, the outer side of the cam sleeve is slidingly matched with the spline sleeve, and the bottom end of the cam sleeve extends downward through the spline sleeve and abuts against the elastic member. The present invention can realize self-alignment of the transmission shaft, is easy to operate, reduces the difficulty of steering, and improves the steering flexibility; at the same time, it reduces the cost investment, has a simple structure, and is easy to repair.