Steering system and heavy wheel-type vehicle with independent suspension

FIELD: transportation.

SUBSTANCE: steering system comprises a steering gear and a hydraulic assistance system of steering. The steering gear and the hydraulic assistance system of steering are used for transferring the steering effort and the effort generated by the hydraulic assistance system of steering to front axle wheels. The steering system additionally comprises a rear axle steering device. The steering gear and the hydraulic assistance system of steering used for the front axle and the rear axle steering device used for the rear axle are units independent of each other. A heavy wheel-type vehicle with an independent suspension comprises said steering system.

EFFECT: improving the vehicle handling.

19 cl, 10 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: invention relates to transport engineering. Proposed vehicle consists of engine, cabin, frame, drive wheels and movers. Every said mover consists of four wheels with gimbal suspension drive fitted at the ends of radial brackets driven by planetary gearing. Axle consists of differential with propeller shaft and telescoping several axles. Every said axle represents and independent design. First axle is engaged with planetary gearing to drive in synchronism all four wheels of one mover. Besides it engages with brakes via bevels pinions. Second axle doubles as a steering also engaged with planetary gearing to turn in synchronism all four wheels of one mover through 360 degrees. Third sale engages with planetary gearing with gimbal suspensions with wheels to be driven by switch, that is, third axle is engaged with first axle to make switch move the wheels over obstacles from above to simulate overcoming of said obstacles.

EFFECT: higher flotation and manoeuvrability of vehicle.

5 dwg

FIELD: transport.

SUBSTANCE: invention relates to transport engineering. Proposed vehicle consists of engine, cabin, frame, steering and propulsors. Frame is composed of a regular circle to support propulsors equally spaced apart at gimbal mounts. Started engine interacting with gearbox drives said propulsors via chains. All propulsors are interconnected by said chains. Cabin is mounted at the frame to turn thereabout. At steering wheel turn cabin turns synchronously and parallel with said propulsors in one direction relative to said frame. Cabin can be turned relative said frame with the help of steering wheel booster. Cabin turns the sprocket secured to the tube at cabin bottom center to turn the propulsors, said frame being fixed relative to propulsors and cabin. Movable connection of steering controls is arranged at cabin bottom center.

EFFECT: perfected design, simplified repair and servicing.

10 dwg

FIELD: transport.

SUBSTANCE: invention relates to self-propelled lifting devices. Self-propelled crane comprises chassis and at least four caterpillar chains secured to said chassis. Note here that every caterpillar chain has a carcass secured to said chassis with the help of journal having horizontal axis. Caterpillar chain is secured to chassis to turn about journal horizontal axis relative the chassis. Besides, the crane comprises rotary platform coupled with said chassis to turn about caterpillar chain and boom articulated at rotary platform front. Linear actuator is added to the crane between caterpillar chain and chassis to extend through the journal. Linear actuator makes the part of self-fastening mechanism. This journal comprises tubular element with lengthwise axis and first end to be coupled with crane chassis and second end to be connected with caterpillar chain carcass. At least one of said ends allows said carcass to turn about lengthwise axis relative to the chassis. Linear actuator is arranged inside hollow central tubular element. Said linear actuator is composed by hydraulic cylinder. Chassis connector is secured to hydraulic cylinder one end while chassis connector is secured to hydraulic cylinder opposite end.

EFFECT: fast connection/disconnection of chassis and caterpillar chain in crane assembly disassembly.

21 cl, 40 dwg

FIELD: transport and technological engineering.

SUBSTANCE: invention relates to units of base chassis of transport and technological vehicles. Proposed unit of steerable drive wheels includes hollow bracket on which running-paired wheels with rotation drive are installed by means of hollow rotary trunnion. Said drive is made in form of shaft-gear, different-diameter bevel gears fitted on shaft-gear to transmit rotation to running-paired wheels. Bevel gears are orientated in space by their cones pointed to each other, and they are in meshing with two bevel gear wheels whose sizes provide equal gear ratio of both bevel gear trains. Gear wheels are installed on axle-shafts arranged in side brackets of rotary trunnion for unlimited rotation around their axis to provide intersection of axes with each other and with axis of shaft-gear in one point.

EFFECT: reduced run-around arm at mounting of paired wheels with resulting reduced force required for turning of wheels.

1 dwg

FIELD: transport engineering.

SUBSTANCE: proposed axle is essentially load-bearing structure in form of beam with brackets on which running wheels are fitted on steering knuckles, running wheel turning drive, running wheel rotation drive made in form of two side reduction gear units connected through axle-shafts with differential and final drive and consisting of upper and lower bevel gear trains. Brackets of beam of carrying structure have height providing free and non-limited turning of wheel around axle of bracket, and running wheel turning drive is made in form of worm wheels rigidly installed in upper part of steering knuckles in meshing with worms set into rotation by hydraulic motors.

EFFECT: provision of non-limited and independent turning of running wheels.

1 dwg

Bracket // 2191120
The invention relates to a swivel mount levers

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. This system comprises hydraulic rudder engaged with hydraulic cylinders. Hydraulic rudder is engaged with frame turn hydraulic cylinders via frame alignment stabilizer including signalling hydraulic cylinder. Rod is connected with pin with centring spring contracted to threshold force and arranged between fixed and moving stops. Hydraulic pressure control valve is communicated with frame turn hydraulic cylinders. Tractor axle beam is engaged with frame by hinge located sideways of the front frame, opposite the turn hydraulic cylinder. Chamber of said cylinder are communicated with hydraulic rudder control channels parallel with signalling hydraulic cylinder. Proposed method consists in turning the rudder through small angle about vertical hinge to turn the axle beam. For deep-lunged torque at the end of working run rudder is turned to turn tractor frames.

EFFECT: better controllability.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: this steering system comprises fluid driven steering wheel with control channels communicated with hydraulic cylinders actuating the mutual turn of connected wheeled semi-frames coupled by vertical hinge. Said fluid driven steering wheel control channels are communicated with hydraulic cylinders actuating the mutual turn of connected wheeled semi-frames via semi-frames alignment stabiliser including indicator hydraulic cylinder. Indicator hydraulic cylinder chambers are communicated via oil lines with steering wheel control channels. Indicator hydraulic cylinder rod is coupled via pin with centering spring contracted to threshold force. Said spring is arranged between fixed and moving trusts to be contracted to higher strain by indicator cylinder at appropriate pressure therein. Indicator hydraulic cylinder couples semi-frames via servo pressure control valve with control channels connected via oil lines with hydraulic cylinders actuating the mutual turn of connected wheeled semi-frames.

EFFECT: automatic straight motion.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: system comprises oil station with delivery and drain lines, metering pump articulated with steering wheel and communicated with pressure and drain hydraulic lines and, via hydraulic lines and normally-closed three-line two-way hydraulic pressure control valves with rod ends of friction gear hydraulic cylinders, their piston ends being communicated via normally-open three-line two-way hydraulic control valves with oil station hydraulic pressure line, and brake hydraulic cylinders with piston spring loaded towards cut-off side. Brake hydraulic cylinders are connected with friction gear control hydraulic cylinders via extra hydraulic lines and extra normally closed three-like two-way hydraulic control valves via extra orifices made in friction gear control hydraulic cylinders to communicate extra hydraulic lines with piston ends at extended rods and, with rod ends, at pulled-in rods.

EFFECT: separate control over LH and RH sides at whatever radius of turn.

3 cl, 2 dwg

FIELD: transport.

SUBSTANCE: set of inventions relates to automotive industry. Hydraulic servocontrol system unit for vehicles contains hydraulic servovalve with actuating element, two planetary gears and actuator. The first functional element of one planetary gear is connected without possibility to rotate with input shaft or output shaft. The first functional element of the other planetary gear is connected without possibility to rotate with actuating element. The second functional element connects planetary gears. The actuator is located and made so that it provides possibility of rotation in one direction with simultaneous relative rotation of both planetary gear functional elements relative to each other. Method of steering support of hydraulic servocontrol system for vehicles includes steps in which: - steering support is controlled depending on relative rotation of input shaft in relation to output shat by means of hydraulic servovalve; - rotary movement of input shaft or output shaft is transferred to actuating element by means of two planetary gears; - relative movement of actuating element in relation to input shaft or output shaft is performed by means of actuator to influence on steering support characteristic.

EFFECT: decreased play of actuating element movement.

13 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Steering hydraulic control system comprises first and second steering control components. First component is connected with first valve assembly including the first valve of steering control. Working fluid flow fed into steering control one or several cylinders is controlled by priority valve that sets priority between steering first and second components. Second valve assy comprises second steering control valve. Said priority valve is connected with second valve assy via hydraulic main line. Second valve can interact with flow proportioning valve. Method of control over steering system comprises two operating modes. In the first mode when the steering first component is not used second valve and/or flow proportioning valve are controlled by steering second component. In the second mode both second and first valve assemblies are used at a time when steering control first component is used. Vehicle comprises above said hydraulic control system for steering control. Control unit controls above described hydraulic system and incorporates machine-readable program executed to realise hydraulic system control jobs.

EFFECT: ease of use, higher safety.

25 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Hydraulic drive with alarm valve comprises primary hydraulic drive with engine-driven primary pump and emergency hydraulic pump with motor-driven check valve. Primary pump pressure line incorporates flow alarm valve to be connected to emergency pump pressure line. Alarm valve is composed of a check valve incorporating contactless Hall transducer. Alarm valve body has two inlet channels and one discharge channel and through bore with check valve seat. Hollow rod with check valve gate is arranged in said bore to displace in inside the cover fixed in the body through bore. Spring to rest on cover end face and press check valve gate to its seat is fitted inside the rod on one side. Permanent magnet to interact with Hall transducer without direct contact is arranged on opposite side of rod cavity. Hall transducer is arranged inside body bore is aligned with the rod and coupled with emergency pump drive motor.

EFFECT: higher reliability.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. proposed device comprises steering wheel and mechanism to convert steering wheel turn angle into appropriate oil flow to guide wheels turn hydraulic cylinder. Said converter comprises oil pressure hydraulic control valves controlled via step-down gearing and arranged in remote control oil lines. Said oil lines communicate oil pump with hydraulic cylinder. The latter can convert oil pressure in rod displacement and is articulated with centering threshold spring arranged between fixed stops. Hydraulic cylinder is articulated with guide wheels turn hydraulic cylinder hydraulic control valve. Hydraulic control valve control channels are communicated with guide wheels turn hydraulic cylinder engaged with hydraulic control valve via feedback. Method of vehicle turn control whereby vehicle turn signal is generated by revolving steering wheel. Said signal is converted in oil flow from pump corresponding to sheering wheel turn angle to direct oil flow in control pipes to hydraulic cylinder. Hydraulic cylinder turns vehicle turn actuate in compliance with steering wheel turn. Turn signal is converted in oil flow pressure in oil control lines corresponding to steering wheel turn from position corresponding to vehicle straight motion. Oil flow pressure contracts threshold spring after reaching design magnitude at steering wheel free run to displace hydraulic control slide valve in compliance with threshold spring contraction.

EFFECT: higher accuracy of control.

2 cl, 1 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machines and devices for their control. The working machine comprises a frame. On the frame there is at least one master wheel installed, at least one unit of a self-adjusting wheel, and at least one device aiding rotation. Each rotation aiding device is connected between the frame and the appropriate unit of the self-adjusting wheel. Each rotation aiding device is made as capable of displacement of the appropriate unit of the self-adjusting wheel in process of rotation. Displacement is corrected by means of forces rendered by the ground at the unit of the self-adjusting wheel.

EFFECT: improved controllability of a machine at high speeds without deterioration of control at lower speeds.

20 cl, 5 dwg

FIELD: transport.

SUBSTANCE: commercial car with four-wheel truck includes controlled rigid axle and control device. Rigid axle is movably connected with frame, body and top structure of vehicle by means of control device. Control device includes at least one actuating unit. The actuating unit is made capable to control rigid axle movement relative to frame, body and top structure. Control of movement occurs depending on at least one vehicle operational parameter recorded by sensory unit. The sensory unit contains at least one vibration transducer made capable to record vibrations of at least one part of vehicle and to perform transmission to control unit. The control unit is made capable to generate control signal based on recorded vibration and to send this signal to actuating unit. Based on this signal, the rigid axle is actuated by actuating unit in such a way that created due to rigid axle motion vibrations at least partially compensate for recorded vibrations of at least one pert of vehicle.

EFFECT: possibility to compensate for vibrations occurring during motion in frame, body or top structure.

16 cl, 25 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed system comprises individual hydraulic steering booster for every axle of pivoting wheels and direct and feedback links between steering wheel and pivoting wheels. Said system comprises remote oil ducts to communicate hydraulic steering booster with of individual hydraulic booster of pivoting wheels. The latter comprises first hydraulic cylinder with its moving part articulated with wheel turn lever and its chambers communicated with hydraulic control valve control ducts. Hydraulic control valve inlet and outlet ducts are communicated via oil lines with pump station. Said hydraulic control valve communicated swinging wheel via valve body and slide valve with centering threshold spring and second hydraulic cylinder with chambers of the latter communicated with steering hydraulic booster via remote oil ducts.

EFFECT: improved controllability.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. This system comprises hydraulic rudder engaged with hydraulic cylinders. Hydraulic rudder is engaged with frame turn hydraulic cylinders via frame alignment stabilizer including signalling hydraulic cylinder. Rod is connected with pin with centring spring contracted to threshold force and arranged between fixed and moving stops. Hydraulic pressure control valve is communicated with frame turn hydraulic cylinders. Tractor axle beam is engaged with frame by hinge located sideways of the front frame, opposite the turn hydraulic cylinder. Chamber of said cylinder are communicated with hydraulic rudder control channels parallel with signalling hydraulic cylinder. Proposed method consists in turning the rudder through small angle about vertical hinge to turn the axle beam. For deep-lunged torque at the end of working run rudder is turned to turn tractor frames.

EFFECT: better controllability.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: this steering system comprises fluid driven steering wheel with control channels communicated with hydraulic cylinders actuating the mutual turn of connected wheeled semi-frames coupled by vertical hinge. Said fluid driven steering wheel control channels are communicated with hydraulic cylinders actuating the mutual turn of connected wheeled semi-frames via semi-frames alignment stabiliser including indicator hydraulic cylinder. Indicator hydraulic cylinder chambers are communicated via oil lines with steering wheel control channels. Indicator hydraulic cylinder rod is coupled via pin with centering spring contracted to threshold force. Said spring is arranged between fixed and moving trusts to be contracted to higher strain by indicator cylinder at appropriate pressure therein. Indicator hydraulic cylinder couples semi-frames via servo pressure control valve with control channels connected via oil lines with hydraulic cylinders actuating the mutual turn of connected wheeled semi-frames.

EFFECT: automatic straight motion.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Proposed device is equipped with steering mechanism with booster. Steering mechanism comprises steering wheel differential gearing to transmit wheel turn angle from input shaft and wheel turn angle overlaid on wheel turn angle by adjusting means. Transmission of steering wheel turn angle in steering gearing is ensured by gearing stage (a, b, c, d). Decrease in steering wheel turn angle allows manual control over truck at failure of steering mechanism equipped with booster. Truck steering device comprises above described active steering mechanism.

EFFECT: higher safety, better controllability.

8 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed system comprises individual hydraulic steering booster for every axle of pivoting wheels and direct and feedback links between steering wheel and pivoting wheels. Said system comprises remote oil ducts to communicate hydraulic steering booster with of individual hydraulic booster of pivoting wheels. The latter comprises first hydraulic cylinder with its moving part articulated with wheel turn lever and its chambers communicated with hydraulic control valve control ducts. Hydraulic control valve inlet and outlet ducts are communicated via oil lines with pump station. Said hydraulic control valve communicated swinging wheel via valve body and slide valve with centering threshold spring and second hydraulic cylinder with chambers of the latter communicated with steering hydraulic booster via remote oil ducts.

EFFECT: improved controllability.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, namely, to steering transfer mechanisms. Proposed valve consists of body accommodating continuous-action operating valve with two inlets from two pressure lines, two lines of supply for additional using equipment, one line of proportioning pump and two control lines. Besides, said valve has four adjusting edges, one control the flow from first pressure line to first line of first additional using equipment. Second edge controls proportioning pump supply flow. Third edge controls flow from second pressure line to proportioning pump supply line. Fourth edge controls flow from second pressure line to second line of additional using equipment. Priority valve incorporates also operating valve return spring and check valve with its outlet built in proportioning pump supply line from third adjusted edge. Proportioning pump supply line from third adjusting edge and check valve are arranged in operating valve body.

EFFECT: simple and compact design.

3 dwg

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