76results about How to "Large steering angle" patented technology

A split-style electric skateboard includes a main skating board, an auxiliary skating board, and a cross beam located between the main and auxiliary skating board. The main skating board has a steering wheel and a driving wheel arranged one behind the other. A driving motor is mounted in the driving wheel and the steering wheel is connected to the main skating board by a first steering support and a first pivot located on the first steering support. A secondary steering wheel is mounted at an intermediate position on the auxiliary skating board and is connected to the auxiliary skating board by a second steering support and a second pivot located on the second steering support. The first and second steering supports are fixedly connected by the cross beam, and the auxiliary skating board can rotate with respect to the main skating board using the first pivot as the rotation center.

A vehicle includes a center transmission plate, a first center turnable portion configured to turn about a first center turning axis extending in an up-down direction, a second center turnable portion configured to turn about a second center turning axis extending in a front-rear direction, a left transmission plate, a first left turnable portion configured to turn about a first left turning axis extending in the up-down direction, a second left turnable portion configured to turn about a second left turning axis extending in the front-rear direction, a right transmission plate, a first right turnable portion configured to turn about a first right turning axis extending in the up-down direction, and a second right turnable portion configured to turn about a second right turning axis extending in the front-rear direction. A tie rod is supported on the second center turnable portion, the second left turnable portion, and the second right turnable portion.

In an outboard marine motor including an upper case (4) enclosing an engine (E) and a lower case (5) fitted with a propeller (12) and connected to a lower end of the upper case, the lower case is configured to be turned relative to the upper case around a vertical axial line which is coaxial with a vertical drive shaft (10) that transmit torque of the engine to the propeller. Thereby, the outboard marine motor can be steered simply by turning the lower case. Because the upper case having a relatively large lateral dimension as compared with the lower case is not required to be turned, a large steering angle can be achieved without the outboard marine motor interfering with watercraft having the outboard marine motor mounted thereon. In particular, the lower case is turned by an actuator including an electric motor and a worm gear mechanism (50) for transmitting an output torque of the electric motor to the lower case so that a high speed reduction ratio can be achieved by using a highly compact structure.

The invention discloses a compound steering-by-wire system driven by a passenger car motor and a steering control method. In the system, a road sense motor is connected with a road sense motor deceleration mechanism and connected with a steering drive shaft provided with a torque angle sensor, a steering wheel is successively connected with the steering drive shaft, a torque rod, an upper transmission shaft and an electromagnetic clutch, in the steering executive motor deceleration mechanism, a first worm gear is installed on a steering gear shaft connected with a lower transmission shaft, andthe two ends of a first worm are both connected with a steering executive motor; and a steering pinion in a steering gear is coaxially and fixedly connected with the first worm gear, the two ends ofa rack are connected with steering wheels correspondingly, an ECU is connected with the torque angle sensor, the road sense motor, the electromagnetic clutch and the steering executive motor through signals. The method includes a conventional steering control method, a failure backup steering control method and a mechanical steering control method. According to the compound steering-by-wire systemdriven by the passenger car motor and the steering control method, in the case of the failure of electrical elements of the system, the steering action can be successfully completed, and the safety of the steering system is greatly improved.

A motorcycle swing-preventing device includes a fixing base mounted on the steering shaft of a motorcycle head. A connecting member has its universal bearing pivotally combined with the fixing base. A swing preventer is disposed with a connecting base having a universal bearing secured with the connecting member. A positioning base is fixed on the motorcycle head, and the damping rod of the swing preventer has one end pivotally combined with the positioning base. Thus, the universal bearing on the connecting base is kept immovable and the swing preventer has its fulcrum shifted to the universal bearing of the connecting member for shortening its swing stroke. The swing preventer can also have its fixing base extending outward properly to form a connecting base with a universal bearing pivotally combined with the fixing base.

The invention relates to a rack (7, 31) for a rack-and-pinion steering system of a motor vehicle, having a variable toothing (12, 13) formed from a plurality of teeth (14, 15) arranged along a rack axis for the engagement of a pinion (18, 17, 43, 44), wherein the rack (7, 31) is formed by two rack parts (8, 9, 32, 33) that are arranged movably with respect to one another and which both have an identical variable toothing (14, 15) for the engagement of a respective pinion (16, 17, 43, 44).

The invention provides a steering device for a vehicle with two front wheels. The steering device comprises a plurality of connector units and a plurality of steering connecting rods, wherein the connector units are arranged on a control lever and a suspension unit of the vehicle with two front wheels respectively, and the steering connecting rods are connected with the connector units respectively; at least the connector unit on the control lever comprises a seat body connected to the control lever, a first pivoting mechanism pivoted on the seat body, and a second pivoting mechanism pivoted on the first pivoting mechanism, and the rotating axis of the first pivoting mechanism and the rotating axis of the second pivoting mechanism are orthogonal. The steering angle of the suspension unit can be increased to promote the operability by utilizing the first and the second pivoting mechanism the axes of which are orthogonal, and the impact force is absorbed by utilizing the mode of relative rotation of the first and the second pivoting mechanism, and therefore the whole service life of the steering device is prolonged.

The invention discloses a novel front and rear frame hinged structure for loaders. The front and rear frame hinged structure comprises a front frame, a rear frame, an upper tie rod ball and a lower tie rod ball. The front frame and the rear frame are connected through the upper tie rod ball and the lower tie rod ball. Since the upper tie rod ball and the lower tie rod ball are connected between the front frame and the rear frame and are respectively connected through taper sleeves fixed on the front frame and the rear frame, taper surface cooperation can be realized, and the swinging range of the front frame and the rear frame can be limited through a limit board. The novel front and rear frame hinged structure has the advantages of simple structure, simplified manufacturing technique, low cost, good frame barrier through performance, large steering angle, small turning radius, capability of working within a narrow space and the like, thereby being suitable for being applied to small-sized loaders.

The invention relates to the technical field of sports products and discloses a self-training type auxiliary nondirectional ball which comprises a PVC (polyvinyl chloride) ball body with a conventional air hole. The PVC ball body is internally filled with air through the air hole, a plurality of PVC circular gaskets are uniformly distributed on a spherical surface of an inner cavity of the PVC ball body, and a guide ball is arranged at the sphere center of the PVC ball body. Four PVC supporting rods extending upwards, downwards, leftwards and rightwards respectively are integrally formed at the circle center of each PVC circular gasket, and the tail end of each PVC supporting rod is fixedly connected with a curved sleeve. The self-training type auxiliary nondirectional ball has advantagesthat the problem of lack of a nondirectional sports training product in development of flexibility and reaction capability of athletes at prevent is solved, and the self-training type auxiliary nondirectional ball is suitable for all crowds and capable of training corresponding crowds in psychological and intelligence terms and fills a gap that sports products with a body training function are lack of psychological and intellectual training effects.

The invention relates to a forklift steering mechanism, in particular to an upper-mounted horizontal oil cylinder forklift steering bridge. The structural features are: the bridge body is V-shaped, the middle part is vertically connected to the installation shaft, and the horizontal steering oil cylinder is arranged above the installation shaft; The lower end of the pin is axially connected to the L-shaped steering bend, and the lower end of the L-shaped steering bend is connected to the wheel shaft; the other ends of the left steering knuckle arm and the right steering knuckle arm are respectively connected to the middle part of the kingpin. The steering swing angle of the present invention can reach 90 degrees, which is especially suitable for the large steering angle requirement of a double-drive four-point forklift, which cannot be achieved by the prior art products with a steering swing angle of 76-82 degrees. The steering resistance is small, and the steering resistance is 80% of that of the existing similar steering axles.

The invention relates to a universal chassis of a paddy field working device with a hydrostatic drive. A variable displacement piston pump is connected with an engine, the oil output port of the variable displacement piston pump is connected with four variable displacement motors through an anti-slip control valve group, and respective output shafts of the four variable displacement motors are connected with wheels through respective hub reduction gears; a steering system comprises a steering pump, the oil output port of the steering pump is connected with a steering device, and the steering device is connected with a steering oil cylinder; a functional pump of a functional working mechanism is connected with the engine, and the oil output port of the functional pump is connected with at least two working oil cylinders through a control member; the control member comprises a pressure compensation valve, a flow control valve and a shuttle valve, it is ensured by the pressure compensation valve that the amount of the flow passing through a variable throttle is proportional to the opening size, a spring bias pressure is set by the flow control valve to cooperatively regulate the outlet pressure of the pump with the maximum load, and the maximum loading pressure of at least two execution members is transmitted to a spring cavity of the flow control valve by the shuttle valve.

The invention discloses a wheel type ground walking type relining mechanical hand. The wheel type ground walking type relining mechanical hand comprises a base. Four rotary wheel devices are mounted at the bottom of the base, and walking motors are arranged on one sides of the rotary wheel devices. The basic surface of the base is fixedly connected with four bearing columns, two locomotive walls,a hydraulic system and a drive motor. As the walking motors are in transmission connection with the rotary wheel devices, a vehicle body can rotate and walk, walk front and back and steer, steering oftwo front wheels and steering of two rear wheels can be achieved, the four wheels can simultaneously and synchronously steer, and the operation is more convenient. Through the arrangement of a locking bolt, a nut and an adjusting groove, a third gear of the mechanical hand rises and falls, and the tightness degree of a chain can be conveniently adjusted. Through the arrangement of a main beam hydraulic telescopic device, a second hydraulic telescopic rod and a third hydraulic telescopic rod, three-stage telescopic adjustment is facilitated.

The invention relates to a large-corner quick-change hinging device of a support carrier. A main structure comprises a traction seat, a middle connecting plate, a left-right swinging hinge frame, a front-back swinging hinge frame, a trailer fixing plate, a tractor fixing plate, a central hinge shaft, a front-back swinging hinge shaft, a bolt, a nut and a seal ring, and the design that the traction seat is combined with the front-back swinging hinge frame, the left-right swinging hinge frame and the hinge shaft is adopted, thus hinge joint between a lengthened support car and the tractor is firmer, steering is more freely, and the hinging device disclosed by the invention has advanced design, compact structure, high mounting speed and large steering angle (which can reach minus or plus 90 degrees), is safe, stable and reliable and is an ideal large-corner quick-change hinging device of the support carrier.

Provided is a mower. The lateral wall portion of a mower housing (1) is provided with an operation opening (94) capable of opening and closing through a cover body (95). A pair of front wheels (2) and a pair of rear wheels (3) rotate in a horizontal turning state with a same horizontal orientation, so that a driving machine can drive in a cross running state of the orientation running direction of the operation opening (94). A reinforcing frame (14) is provided, and is configured above a vehicle wheel supporting frame (17) along the forward and backward direction of the reinforcing frame (14); in addition, one end side of the reinforcing frame (14) in the forward and backward direction of the machine is in connection with a part in the vehicle wheel supporting frame (17) located on a machine horizontal outside of a machine framework (12) to support the vehicle wheel supporting frame (17). According to the invention, the mower with a driving machine body which can automatically drive through the pair of front wheels and the pair of rear wheels can rapidly move and mow.

In an outboard marine motor including an upper case (4) enclosing an engine (E) and a lower case (5) fitted with a propeller (12) and connected to a lower end of the upper case, the lower case is configured to be turned relative to the upper case around a vertical axial line. The power of the engine is transmitted to the propeller via a vertical drive shaft (10) which is coaxial with the vertical axial line. Thereby, the outboard marine motor can be steered simply by turning the lower case. Because the upper case having a relatively large lateral dimension as compared with the lower case is not required to be turned, a large steering angle can be achieved without the outboard marine motor interfering with watercraft having the outboard marine motor mounted thereon. This is particularly beneficial when two or more outboard marine motors are used one next to the other.

The invention discloses an electric controller for a shear forklift. The electric controller comprises an upper forklift controller and a lower forklift controller. The upper forklift controller and the lower forklift controller are connected through a CAN bus. The upper forklift controller comprises an upper forklift control box and a controller body which are connected through a cable. The top of the upper forklift control box is provided with a first display screen and a first control handle. The front of the upper forklift control box is provided with a first sudden stop rotary knob. The lower forklift controller comprises a lower forklift control box and a controller body which are connected through a cable. The top of the lower forklift control box is provided with a second control handle. The front of the lower forklift control box is provided with a second display screen and a second sudden stop rotary knob. The electric controller for the shear forklift is directly driven by the controller bodies, high in speed and stable; an upper forklift body communicates with a lower forklift body through the CAN bus; upper forklift control lines and lower forklift control lines are reduced; aging is not prone to happening; and arrangement on the safety aspect is added, so that the effect that operation is safe and reliable is ensured.

The invention relates to a solar-assisted environment-friendly man-powered passenger car comprising a bicycle frame, a front wheel, rear wheels, steering handlebars, a rear axle and a driving device, wherein the front wheel, the rear wheels, the steering handlebars, the rear axle and the driving device are arranged on the bicycle frame; the driving device is used for driving the rear axle; the rear axle is connected with a gear shifting differential for driving a semiaxis of the rear axle to rotate, and the driving device comprises a foot-operated driving device arranged on the bicycle frame and an electric driving device; the foot-operated driving device is connected to the gear shifting differential through a driving chain wheel; and the electric driving device comprises a speed-reducing motor and an energy storage converter connected with the speed-reducing motor, wherein the speed-reducing motor is connected to the gear shifting differential, the electric driving device is also connected with a control system, and the control system comprises a controller for controlling the output of the motor and a manpower sensor connected with the controller. The passenger car is diversified in power, high in flexibility and high in stability and safety, and a user can realize easy foot-operated driving operation.

The invention relates to a steering system, a vehicle and a vehicle steering method. The steering system comprises a plurality of wheel sets, suspension assemblies (4) and rotation driving devices (3), wherein at least one of the wheel sets comprises two wheels (2); the number of the suspension assemblies (4) is the same as that of the wheel sets, and the suspension assemblies (4) are correspondingly connected with the wheel sets; and the number of the rotation driving devices (3) is the same as that of the suspension assemblies (4), and the rotation driving devices (3) are correspondingly connected with the suspension assemblies (4) and are used for driving the correspondingly connected suspension assemblies (4) to rotate so as to drive the corresponding wheel sets to achieve independentsteering. The vehicle comprises the steering system. According to the invention, each wheel set can realize independent steering so as to enable the vehicle to have higher steering flexibility; the structure is simpler, and the occupied size is small; moreover, the steering angle of the rotation driving device is large, so that the turning radius is effectively reduced, and tire abrasion is reduced; and the supporting capacity is better, and the vehicle stability is good.

The invention provides a vehicle steering transmission mechanism, a vehicle steering system and a vehicle. The vehicle steering transmission mechanism comprises a main steering knuckle (1); the main steering knuckle is provided with a virtual main pin (11) and a mounting part which is used for being connected to a steering gear; the main steering knuckle can rotate around the virtual main pin to adjust a first steering angle; the vehicle steering transmission mechanism comprises a wheel fixing part, which is used for fixing a wheel and connecting the main steering knuckle and a sub steering knuckle (2) of the wheel; the sub steering knuckle is rotatably arranged on the main steering knuckle through a steering main pin (21); and the sub steering knuckle rotates around the steering main pinto be able to adjust a second steering angle relative to the main steering knuckle in the steering direction of the main steering knuckle. As the sub steering knuckle is rotatably arranged on the mainsteering knuckle, the vehicle steering transmission mechanism with the structure has an effect of improving the steering angle of the vehicle through running fit between the main steering knuckle andthe sub steering knuckle.