405 results about "Wheel running" patented technology

A wheelchair has two central wheels that can be separately driven by a motor. In order to allow the wheelchair to turn around in narrow spaces, the central wheels can be driven in opposite directions of rotation. When the wheelchair is turned around, the front wheels and rear wheels do not constitute a hindrance because they are kept at a distance from the ground by the swiveling wheel. All three wheels are coupled together on each side by a chain. When the front wheels run against an obstacle, the wheelchair climbs over the obstacle with the driven front wheels. This causes the fork of the swiveling wheel to swivel about the rotational axis in the direction of arrow, against the force of a spring, bringing the rear wheels in contact with the ground and also driving the wheelchair's rear wheels. This all-wheel drive allows the wheelchair to overcome relatively high obstacles both forwards and backwards, even when driving slowly and without losing its maneuverability.

A robot having a leg mechanism having high rigidity, so as to enable moving on wheels, on the leveled ground, and also moving on the bipedalism, on the unleveled ground, and also enabling to execute exchanging between the wheel running and the bipedalism in a short time, comprising: a body; and left and right leg portions in lower portion of the body, wherein each leg portion has a wheel, which can be drive, at a tip thereof, and a supporting portion, which is movable in roll and pitch directions, the each leg portion has three (3) degrees of freedom, roll, pitch and pitch from the body side, and the supporting portion has at least two (2) of contact points to be in contact with a ground, and makes up a stable region by a contact point of the wheel and the contact point of the supporting body, and thereby oscillating the left and right leg portions, alternately, so as to make bipedalism, and further operating the supporting body, so as to run on the wheels.

The invention discloses a coal mine underground search-and-rescue detection robot moving device, belonging to the technical field of robots. The device comprises walking track mechanisms on the left and right sides, a front swing arm track mechanism, a wheel swing arm connecting rod mechanism, a wheel chassis and a power device. The front swing arm track mechanism is mounted on the outer side of the walking track mechanism; and the wheel swing arm connecting rod mechanism is mounted on the outer side of the front swing arm track mechanism. In both moving modes, the steering is realized by thedifferential speed between the left and right wheels, the wheel walking is driven by double rear wheels, and the track walking is driven by double front wheels. In the wheel swing arm connecting rod mechanism, a wheel lifting motor drives a rear wheel swing arm box to rotate, and the movement is transferred to a front wheel swing arm sleeved on a front mandrel through a transmission connecting rod; in the case of special underground environment of the coal mine, the track or wheel running can be selected according to different road conditions; and the device disclosed by the invention has perfect moving ability and adaptability, and provides a moving platform with strong maneuverability and reliability for building a coal mine underground environment detection robot.

A magnetically attaching underwater robot for eliminating the failure of submarine by attaching it to its external surface is composed of main body, manipulator, two-wheel running mechanism, DC motor, drive unit, telescopic unit for holding the balance of main body and locating electromagnet.

A telescopic shelter system comprises two pairs of guide rails having a pair of parallel outer rails and a pair of parallel inner rails arranged at an inner side of the outer rails, a plural of shelters comprising two side walls facing each other and a roof connecting at the top of the two side walls, the two side walls and the roof are tapered at one end of the shelter, each shelter arranged on the guide rail in a row, a plural wheels provided at each lower portion of two side walls of each shelter along movement direction of the shelter, having a pair of first wheel running on the outer rail and a pair of second wheel running on the inner rail, and a motor mounted on the shelter for providing a clockwise-counterclockwise movement of the wheel.

The invention discloses a method for counting vehicle axles based on steel-rail deformation or stress parameters. The method comprises the steps as follows: a sensor test point is firstly disposed on a steel rail, the sensor test point is provided with a sensor used for inducing the steel-rail deformation or the stress, and the sensor test point sets the threshold value of the sensor; when a wheel runs over the steel-rail where the sensor is arranged, the sensor records the occurrence of the status if the steel-rail deformation or the stress excesses the threshold value; and the number of the vehicle axles is determined according to the status messages. The solution of counting the vehicle axles provided by the invention is achieved by utilizing the sensor such as a fiber grating or an electrical strain foil, and the method preferentially selects an indirect measuring mode. Therefore, the method can technically avoid the problems existing in the traditional system for counting the vehicle axles, and the method has high stability and strong anti-interference ability.

The invention relates to a variable-diameter wheel hub which comprises a central control cabinet and a plurality of identical retractable hub blocks. The various retractable hub blocks can be driven by retractable spoke assemblies, so that the diameters of the various retractable hub blocks can be radially varied; each retractable spoke assembly comprises a variable-damping retraction actuating mechanism and an extension auxiliary spring, and each extension auxiliary spring sleeves the outer wall of the corresponding variable-damping retraction actuating mechanism; a body of each variable-damping retraction actuating mechanism is a double-piston cylinder barrel, spaces between floating pistons and end walls of barrel walls are filled with high-pressure nitrogen, and a space between each floating piston and another end wall of the corresponding barrel wall is filled with magnetorheological fluid materials; an electromagnetic coil is buried in each working piston, and a circle of throttle holes are formed in each working piston in a buried manner; one end of each wire is communicated with the corresponding electromagnetic coil, and the other end of each wire is communicated with a storage battery. The variable-diameter wheel hub has the advantages that the diameter of the variable-diameter wheel hub can be varied by the aid of the dead weight of an automobile and centrifugal force generated when a wheel runs, extra driving devices can be omitted, the viscosity of magnetorheological fluid can be controlled by the aid of only low currents, and accordingly the variable-diameter wheel hub is low in energy consumption and fast in response; the riding comfort and the obstacle crossing ability are taken into account, and accordingly the variable-diameter wheel hub and non-inflatable tires can be matched with one another to be applied to conventional vehicles, motorcycles, wheelbarrows and the like.

The variable structure leg wheel type machine insect belongs to the field of detecting robot technology. The variable structure leg wheel type machine insect has one body in deformable cross link rod structure capable of changing in body width under the driving of motor; and one leg-wheel changing running mechanism with four foldable legs and capacity of changing into walking detection robot or wheel type detection vehicle. The present invention has adjustable height, foot type walking mechanism and wheel running mechanism, so that it has excellent adaptability.

The invention is a kind of variable structure leg and wheel type detecting robot, which uses variable parallelepiped car body, uses electric engine to drive the car body to be widened or be narrowed; the invention uses running mechanism of leg and wheel transition, the four legs can extended fully, becomes foot walking detecting robot, the four legs can be folded according to a definitive method, it is deformed into wheel detecting car. The invention combines the deformation of the car, the change of car height and the inversion of the leg and wheel, it has several change modes. The invention combines deformable and height adjustable car, foot walking mechanism, wheel running mechanism.

An automatic welding machine for planar plastic materials, such as sealing sheets, tarpaulins or films, the chassis, in the welding position, in addition to being carried by the driving unit and the pressure device, also being carried by a rigid guide wheel, preferably in the front region of the chassis. With respect to a pressure roller running essentially on the welded overlap region, the guide wheel is arranged in such a way that, during the welding, it runs along the bottom plastic material parallel to the edge of the top plastic material. In addition, the guide wheel has a narrow running surface. During the welding, the guide wheel runs along the edge of the overlapping plastic material and the pressure roller runs essentially on the weld region. Due to this configuration, the automatic welding machine can follow the edge in such a way as to keep to the track, so that guidance by the operator or frequent corrections of the welding direction are not necessary. This leads to an increased weld quality and also to a higher welding speed. There is less interference from the background or due to the welding device swinging in laterally.

A rubber crawler track in which a local side displacement is more effectively prevented to effectively prevent wheel run-off, which can reduce traveling vibration, and in which separation of metal cores is prevented for improved durability of the rubber crawler track and for reduced costs. The expression of Δr≦r≦2Δr is satisfied, with “r” being the distance, in the circumferential direction of the rubber crawler track, between ends of horizontal protrusions (6) facing each other between adjacent metal cores (3) embedded in a rubber crawler body in a horizontal state of the rubber crawler track, “h” being the distance from a steel cord (5) layer embedded in the rubber crawler body to the core metal horizontal protrusions (6), and Δr being a value obtained by Δr=2πh / n where “n” is the number of sprocket teeth of a traveling device.

The invention relates to rotary-press processing method and device of a long steel pipe with tensile, wherein the device comprises a steel pipe and a mandrel in the steel pipe. The device is characterized in that the surface of the steel pipe is ground by a rotary wheel so as to thin the wall of the steel pipe, wherein the rotary wheel rounds concentrically around the steel pipe, while the steel pipe and the mandrel in the steel pipe do not rotate; and when the rotary wheel runs around the steel pipe, drawing tension is applied to one end of the steel pipe so that when passing through a gap between the rotary wheel and the mandrel, the steel pipe can be continuously ground to be thin by the rotating rotary wheel, thereby accomplishing the cold machining process of the steel pipe. The invention improves the mechanical structure and the operating mode of the traditional rotary wheel rotary-press device that rotary-press processing can only be carried out by rotating the steel pipe, the operating mode is changed by the mode that the steel pipe does not move and the rotary wheel makes circular motion, and meanwhile, under the action of tension drawing, longer steel pipes can be processed according to requirements on products. The device is characterized by simple structure, convenient operation, obvious effect and convenient installation on the traditional drawing machine and can carry out both rotary pressing on the long steel pipe and cold drawing on the steel pipe.

The invention discloses a method for testing the rut resistance of multi-layered combined structure mixtures of bituminous pavements. The method utilizes a multi-layered combined structure bitumen mixture rut test mold to mold a rut test specimen in a layered mode, and then utilizes an improved conventional domestic rut instrument to carry out a rut test. According to a relation curve between rut depth and test wheel running time, the rut resistance of a bituminous pavement combined structure is evaluated. The method overcomes the defect that the conventional rut test can only evaluate the high-temperature performance of single-layered fixed-thickness bitumen mixtures and cannot evaluate and analyze the high-temperature performance of bitumen mixtures with different thicknesses and structural combinations, can carry out multi-layered combined structural bitumen mixture rut tests and accurately evaluate the influence of combined structures on the rut resistance of bituminous pavements under the action of vehicle load, and has important practical significance in perfecting the bituminous pavement test and design method of China.

The invention discloses an autonomic barrier-crossing system for a wheel-track transformer station inspection robot and a control method thereof. The system includes a chassis and a control system. The chassis includes a robot control box body, a crawler belt running unit, a wheel running unit, a barrier-crossing supporting arm unit, and a drive motor set. The crawler belt running unit includes a left running crawler belt and a right running crawler belt. The left running crawler belt and the right running crawler belt are fixed at the two sides of the control box body respectively, and are separately connected to drive motors. The wheel running unit includes a left running wheel and a right running wheel. The running wheels are connected to supporting arm drive motors. The left running wheel and the right running wheel are fixed at the two sides of the control box body respectively. The control system includes an industrial control computer and a sensor set connected therewith. The industrial control computer is connected to multiple motor drivers, and each motor driver is connected to one corresponding drive motor. The autonomic barrier-crossing system can be automatically switched to a wheel type running mode or a crawler belt type running mode on the basis of needs, thereby satisfying inspection demands of a transformer station in different road conditions.

The invention relates to an online wheel run-out detecting device. The online wheel run-out detecting device includes a frame, a chassis, a lifting cylinder, supports, bearing bases, linear bearings, mounting plates, guide shafts, a lifting shaft, a servo motor, a synchronous pulley, a connecting plate, a synchronous belt, a synchronous pulley, a base, a connecting shaft, a servo motor, a shaft sleeve, a lower end cap, a connecting shaft, a shaft sleeve, and an oil cylinder. The online wheel run-out detecting device can meet requirements of online wheel run-out detection, meanwhile it has the characteristics of simple structure, convenience in manufacturing, stable performance and capability of meeting machining requirements on precision, and can meet requirements of automatic production.

The invention discloses a road roller, which comprises a pinch roller frame and a vibrating wheel which is arranged in the pinch roller frame. The road roller is characterized by also comprising wheels and elevating devices for controlling the wheels to ascend and descend relative to the vibrating wheel, wherein the wheels are connected with the pinch roller frame through the elevating devices. When the road roller is in the working state, the wheels can be elevated and retracted by the elevating devices, and the vibrating wheel runs; and when the road roller is required to be transported to another place, the wheels are lowered by the elevating devices, the vibrating wheel is lifted away from the road surface, the road roller walks under the action of the wheels and a back wheel, self-propelled traveling function is realized, and a special transportation tool is not needed for transferring the road roller, so that time and cost are saved for users.

The invention discloses a coiler braking structure of a dust collector, belonging to the coiler device of dust collector, which comprises a coiler wheel formed by the combination of a left wheel disk and a right wheel disk and enwinding with power cord, a wheel support arranged at one side of the exterior of the coiler wheel; wherein, a roll-up spring box with roll-up spring inside is arranged at the left side of the coiler wheel; a fan-shaped key contacted with the coiler wheel is arranged on the wheel support; an annular salient with a certain thickness is formed by the body of the inner side of the wheel support, with a central part fixed with the roll-up spring box; a swinging decelerate ring is fixed with the inner diameter of the wheel disk outside the left wheel disk. The invention has the advantages of structurally avoiding the problem of the deformation of the key, ensuring the effective stroke of the key, possessing a simple own structure, and automatic decelerating as the coiler wheel runs too fast and keeping the coiler wheel uniform rotating, since the swinging decelerate ring is arranged in the inner diameter of the annular salient of the wheel support.

The invention provides an automobile wheel drive anti-slip control method. Based on the slippage rates of various driving wheels of a vehicle, different working ways are selected, when the slippage rates of the wheels on the two sides are different, the wheels run on a bisect adhesion road, and when the slippage rates of the wheels on the two sides are equal, the wheels run on a uniform low-adhesion road. According to one-sided slip and two-sided slip of a vehicle body, different control ways are adopted. The slippage rate is reduced by braking before torsion reduction or simultaneous torsionreduction, the vehicle body is stabilized, excess power output of an engine is reduced, the driving direction stability of a rear-drive vehicle in the acceleration process and the handling stability of a front-drive vehicle in the acceleration process are improved, the situation that drastic fluctuation of acceleration is caused by frequent regulation of an actuator cannot be caused, the gradeability of the vehicles is improved, and tyre wear, power loss and fuel consumption are reduced. An automobile anti-slip system using the method can improve the starting acceleration performance of the vehicles on the bisect adhesion road and the low-adhesion road, and further can ensure the driving comfort and the speed continuity in the starting acceleration process.

The invention provides a method and apparatus for controlling an active suspension of a vehicle. The method comprises the following steps: scanning a road surface in front of the vehicle by adopting atwo-dimensional laser radar to obtain road surface characteristics of a scanning area of a road section in front of the vehicle; measuring a steering angle of wheels by using an angle sensor, and predicting running tracks of the four wheels according to the steering angle of the wheels and the geometric characteristics of a vehicle body; extracting road surface track characteristics correspondingto the predicted four wheel running tracks from the scanning area, and acquiring optimal damping parameters and stiffness parameters of the active suspension according to the road surface track characteristics; and adjusting the damping parameters and stiffness parameters of the active suspension after a predetermined lag time by a control unit of the active suspension. By adopting the method andapparatus for controlling the active suspension of the vehicle, the cost for establishing an active suspension control model can be reduced, the adaptability of the active suspension can be improved, and the method and apparatus for controlling the active suspension of the vehicle belongs to the field of automobile control.

The invention discloses a cable winter deicing and defrosting device. The cable winter deicing and defrosting device comprises a frame, a driving device, a driving wheel, walking wheels, a scraper andan electric hammer; the frame comprises an upper frame and a lower frame; one side of the upper frame is fixedly connected with a supporting plate; the supporting plate is fixedly connected with thelower frame; the top of the upper frame is equipped with the driving device; the output end of the driving device drives the wheel axle end of the driving wheel; the driving wheel is fixedly connectedwith the bottom of the upper frame; the walking wheels are three, one of which is under the driving wheel and opposite to the driving wheel in position, and the other two are opposite in position andin front of the driving wheel; and both the driving wheel and the walking wheels run on the cable. The structure of the cable winter deicing and defrosting device is concise; the contact angle and distance between the scraper and the cable can be well adjusted through an adjusting plate, therefore, the damage to the cable caused by the scraper during deicing is avoided; and the ice column condensated on the cable can be effectively removed with the impact force of the electric hammer, which is convenient to use and has high deicing and defrosting efficiency.

The invention discloses an intelligent garage transfer robot and belongs to the technical field of intelligent garages. The intelligent garage transfer robot comprises an underframe mechanism with a walking wheel, as well as a front-back walking mechanism, a wheel straightening mechanism and a lifting mechanism which are arranged on the underframe mechanism, wherein the front-back walking mechanism is driven by a hydraulic motor and is accurate in front-back synchronous positioning; two guide wheels run in a track, can automatically correct the direction, and do not deviate from the track at the parking space; a walking gear set is protected by a gear box containing gear oil and works stably to avoid maintenance; the drive rack of the wheel straightening mechanism synchronously passes through a rear-wheel translation adjusting mechanism so as to ensure that an automobile is straightened in place; or else, one side of the automobile gets stuck; and an equipment damage lifting mechanism can be used for avoiding the problem that the lifting mechanism gets stuck and is damaged due to the asynchronous lifting of the lifting mechanism resulting from unequal weight of the front and back of a vehicle.

The invention discloses a rail transit system, which comprises a runway track and a vehicle running on the runway track, wherein the runway track is provided with a first vehicle wheel running face, guide rails and a second vehicle wheel running face which are arranged in a form shaped like a Chinese character 'tu' in turn; the two sides faces of each guide rail are main guide faces; the side faces of the two running faces are provided with side guide faces; the vehicle used in combination has power wheels and guide wheels; the power wheels run on the first vehicle running face and the second vehicle running face respectively; the guide wheels run on the main guide faces and the side guide faces respectively; and wires are arranged on the upper surface of the guide rails. Compared with the currently used straddle type rail transit system, the system has the advantages that: the vehicle body and center of gravity of a used vehicle are low; the accelerating performance and braking performance are high; the turning is smooth; and the running is more stable.

The invention relates to a wheel running service life tester. The tester comprises a workbench and a roller; a frame is arranged above the workbench; the top end of the frame is provided with a hoisting cylinder; a piston rod of the hoisting cylinder is downwards connected with a loading weight set; pillars of the two sides of the frame are provided with guide rails; a connecting frame is arranged in the guide rail, the lower end of the connecting frame is provided with a jig, and the front end of the jig is in Y-shaped; a slot is opened on the surface of the workbench; a roller is arranged below the slot; the roller is arranged on a roller seat by a bearing; an electric motor is arranged in a cabinet body below the workbench; the output end of the electric motor is connected with a reduction gearbox; the output end of the reduction gearbox is connected with the input end of the roller by a chain or a belt pulley. In the invention, the wheel running service life of vehicles, such as bicycle, and the like, can be detected precisely, the detection can be automatically controlled by a computer, the operation is convenient, and the detection is precise. Additionally, the tester can be applicable for detecting the service life of a brake actuator and the service life of the electronic motor hub of an electric bicycle; whether driven by power or not, a wheel can be detected; and the scope of application is wide.

The invention discloses a vehicle dynamic weighing system comprising a weighing sensor, a charge amplifier and a controller. The weighing sensor comprises at least three rows of quartz sensors paved on a lane; and each row of quartz sensors comprise two quartz piezoelectric sensors which are respectively and transversely arranged on a left half lane and a right half lane. When a vehicle passes bythe weighing sensor, each wheel runs over multiple quartz piezoelectric sensors, each quartz piezoelectric sensor generates a wave-form signal which is transmitted to the controller; and after abnormal waveform signals are removed by the controller, the axle weight of each of the rest waveform signals is calculated, a final axle weight is obtained after averaging is carried out, then the final axle weights of all wheels are added, and therefore the final vehicle weighing value can be obtained. By adoption of the paving mode of three or more rows of quartz sensors, weighing deviation caused bypavement irregularity or vehicle vibration can be effectively reduced; and especially, the vehicle dynamic weighing system has a better effect for traveling vehicles with the center of gravity being unsteady.

A measuring device includes: a frame; a rolling wheel carried by the frame; measuring means for determining a distance traveled by the wheel; and signal means responsive to the measuring means for indicating when the wheel has traveled a preselected set distance.

A guide wheel rail vehicle and a rail comprise the guide wheel rail vehicle, a rail structure and a line switching method, wherein the guide wheel rail vehicle is mutually formed by a guide wheel running device, a guide regulation and control device, a vehicle body and the like, wherein the guide wheel running device is used for guiding an advancing direction of the vehicle; the guide regulation and control device is used for regulating and controlling different wheel and rail matching schemes; the vehicle body is arranged for specific function positioning; and the rail structure and the lineswitching method are adaptive to vehicle characteristics. The guide wheel rail vehicle and the rail have at least two matching schemes; in the operation process, by switching the different matching schemes, lines of the vehicle can be switched in the case that all rail components do not act; and each running device of the vehicle has a specific hinging relation with each other so that the vehiclecan sheer off on the rail with small curvature radius. According to the guide wheel rail vehicle and the rail, problems that the turning radius of an existing rail vehicle is large and the steering depends on sequential action of a rail turnout are solved; and the guide wheel rail vehicle and the rail are applied to the field of related rail traffic, such as material conveying and resident trips.

The present invention provides railway which two steel rail sides are paved road surface, ate the same time and the train vehicle running on the railway which is equipped with steel wheel and rubber driving wheel. The steel wheel runs on the steel rail and the rubber driving wheel runs on the two road surfaces of steel rail two sides. The vehicle is guided by the steel wheel and driven by the rubber driving wheel, the both carry the vehicle weight and runs on railway. Due to using rubber wheel driving, the strong driving friction between rubber driving wheel and road surface is far larger than the driving friction (adhesion force) between the wheels and the rail of prior high speed train, so the train speed is far higher than the prior various high speed trains. The train can obtain out side superelevation on curve road through adjusting the pressure adjusting (lifting) device on the rubber driving wheel and the steel wheel of train two sides. The advantages of the invention are: the train has excellent starting, accelerating, climbing and braking performance, the carve road radius is small; the noise pollution between wheel and rail is reduced substantially. And it can decrease corner radius and the road cost.