Volume hidrotransmisia active trailer link self-propelled machines
(57) Abstract:Usage: as a hydraulic driving wheels of the trailer link self-propelled machine. The inventive three-dimensional hidrotransmisia contains the main pump is connected by a hose with at least one hydraulic motor of the drive wheels trailer link, block feeding, relief valve, two check valves and the hydraulic reservoir system regulation for the filing of an adjustable pump, the gauge parameter a curved trajectory. Regulation of the supply of the regulated pump is equipped with servo-hydraulic actuator, hydraulically connected with the pump unit recharge and hydraulic tank. A throttling valve and servo hydraulic performed with a movable sleeve connected with the output of the sensor parameter a curved trajectory. 1 Il. The invention relates to automotive engineering, in particular to the surround hidrotransmisia, and can be used as a hydraulic driving wheels of the trailer link self-propelled machine where you want to improve traction and maneuverability of the machine matching the velocities of rotation of the driving axles of the tractor and trailer link.Known volume the pump, coupled pressure and drain hose with hydraulic motor drive wheels of the trailer, the pressure sensor in the pressure hydroline, the flow regulator, the gauge parameter a curved trajectory, the flow sensor and the summation block. In its approval of rotation of the driving axles of the tractor and trailer link is provided through the use of the throttle means of adjustment of the hydraulic drive, which is not economical.Known hidrotransmisia self-propelled machine that is as closest to the technical nature of the proposed technical solution is adopted as the closest analogue of  contains driven by the mechanical transmission of the tractor adjustable pump pressure and connected the drain hose at least one hydraulic motor of the drive wheels, and through the block recharge, reservoir, system of feed control variable-displacement pump that consists of an inclined washer pump, flow sensor, three adjustable gidroksila and hydraulic cylinder with a spring-loaded piston rod.A disadvantage of this device is that it does not provide for regulation of frequency of rotation of the driving wheels when moving along a curved trajectory that Osobaya frequency of rotation of the driving axles is much worse traction and maneuverability self-propelled machines.The purpose of the invention better traction and maneuverability self-propelled machines.The objective is achieved by the fact that the bulk hidrotransmisia containing drive adjustable pump connected to the hydraulic motor of the drive wheels trailer link pressure and drain hose, and through the power feed from the tank, the system of feed control variable-displacement pump in the form of an inclined washer, flow sensor, three adjustable gidroksila and hydraulic cylinder with a spring-loaded piston with a rod equipped with a sensor parameter a curved trajectory. System flow control is equipped with hydraulically connected with the power feed and the tank servo hydraulic drive, comprising a throttling valve consisting of a valve and a movable sleeve, two spring-loaded piston connected to the washer and hydraulically connected with the valve, and a differential lever, pivotally connected to the inclined plate, the piston rod of the hydraulic cylinder and valve throttling valve. The movable sleeve and a throttling valve servo hydraulic actuator is connected with the output of the sensor parameter a curved trajectory. As a parameter crinoline adjacent trailing links, etc.The drawing shows a schematic diagram of the inventive device.Volume hidrotransmisia active trailer link self-propelled machine includes adjustable pump 1 which is driven from the transfer case (RK) mechanical transmission of the tractor. The pump 1 is connected to a pressure of 2 and drain 3 hose with hydraulic motor 4 connected with the driving wheels 5 trailer link. The hydraulic system also includes unregulated feed pump 6, the relief valve 7, two non-return valve 8 and the tank 9. Control system working volume of the variable-displacement pump 1 consists of an inclined washer 10, sensor 11 of consumption, three adjustable gidroksila 12, 13 and 14, the hydraulic cylinder 15 with the spring loaded piston, the rod of which is connected through a differential lever 16 with an inclined washer 10 and the spool 17 a throttling valve servo hydraulic control washer regulated pump 1, which is also the sliding sleeve 18 and two hydraulic cylinders 19 and 20, moves the puck 10 of the regulated pump 1. Servo hydraulic works from the pump feed 6. Self-propelled machine when it has a sensor parameter curvilinear motion (for example a sensor of the angle of folding) 21, the output of which is connected with GilBefore driving a self-propelled machine bevel washer 10 regulated pump 1 has a slope, which determines the magnitude of the displacement pump 1 is required for coordinated rotation of the driving wheels of the tractor and trailer when driving straight with no load (the pressure in the pressure hydroline 2 is zero). The throttle 13 is closed, and the inductors 14 and 12 are open. At the beginning of the movement of the machine in a straight line in the pressure hydroline 2 increases the pressure when the flow rate is practically zero, so the signal from the flow sensor 11 is missing and if the closed throttle 13 and open chokes 12 and 14, the piston of the hydraulic cylinder 15 is moved to the extreme right. The differential lever 16 transmits this movement to the spool 17, the displacement of which is to the right opens the flow of the liquid from the pump recharge 6 in the cylinder 19 and the cavity under the piston cylinder 20 is connected with the tank 9. In the result, under the action of pressure in the system feeding the angle of inclination of the washer 10 becomes maximum, and hence the maximum flow of the pump 1. The intensity increase of the torque at the drive wheels trailer link increases, and it is at the beginning of the movement.After the appearance of the flow in the pressure hydroline 2, the signal from the sensor the cylinder 15. It ceases to respond to high-frequency pressure changes in the pressure hydroline 2 and hidrotransmisia implemented the law regulating gear ratio corresponding to the movement of self-propelled machine in a straight line. Washer pump 1 takes the position that provides a consistent rotation of the driving wheels of the tractor and trailer.If self-propelled machine does curvilinear motion, as is known from theory of motion of wheeled vehicles, wheel trailers link to move in a path of smaller radius than the wheels of the tractor, thus to provide kinematic compliance it is necessary to reduce the rotational speed of the wheels of the trailer link. In the proposed device, it is provided as follows.If the parameter a curved trajectory using the angle between the longitudinal axes of the tractor and trailer (angle folding), the signal from the angle sensor folding 21 moves the sleeve 18 in a throttling valve servo hydraulic actuator so that the fluid from the feed pump 6 is supplied below the piston 20, and from under the piston 19, the liquid is directed to drain. The angle of inclination of the washer 10 of the pump 1 is reduced and, consequently, decreases and the value of it is you volume hidrotransmisia overload serve as safety valves (not shown).Thus, the use of the proposed volumetric hidrotransmisia active trailer link self-propelled machine ensures the effectiveness of start and has improved traction characteristics as when driving in a straight line, and when moving along a curved trajectory. By reducing the moment of resistance to rotation of the self-propelled machine (there is a desired kinematic correspondence between the frequency of rotation of the driving wheels of the tractor and trailer) is improving its maneuverability. VOLUME HIDROTRANSMISIA ACTIVE TRAILER LINK self-PROPELLED MACHINE that contains driven by the mechanical transmission of the tractor, self-propelled machine adjustable pump pressure and connected the drain hose at least one hydraulic motor of the drive wheels trailer link, and through the power feed from the tank, the system of feed control variable-displacement pump in the form of an inclined washer pump, flow sensor, three adjustable gidroksila and hydraulic cylinder with a spring-loaded piston with the rod, characterized in that it has a sensor parameter a curved trajectory, and the system of regulation of the supply of the regulated pump is provided with hydraulically connected with the block recharge and giovagnoli sleeves, two spring-loaded piston connected with an inclined washer adjustable pump and hydraulically connected with the valve, and a differential lever, pivotally connected to the inclined washer pump, the piston rod of the hydraulic cylinder and valve throttling valve, and a movable sleeve and a throttling valve connected with the output of the sensor parameter a curved trajectory.
FIELD: transport engineering; self-propelled wheeled vehicles.
SUBSTANCE: proposed vehicle contains frame 1 with cab 9, front and rear steerable wheels 4, 6 and middle wheels 5, engine placed behind the cab along vehicle and covered by hood 11. hydrostatic transmission contains pumping station 21 consisting of matching reduction gear driven by engine placed behind the cab, and three pumps connected by pipelines with hydraulic motors providing separate drives of wheels. Hydraulic motors are arranged along frame 1 between sidemembers on solid brackets made in form of boxes with flanges connected with wall of side member between its webs. Invention makes it possible to create ecologically clean and reliable multipurpose all-wheel-drive vehicle of high cross-country capacity with hydrostatic transmission to drive all wheels.
EFFECT: provision of convenient mounting and servicing of transmission units.
5 cl, 7 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to crawler tractors and it can be used in their full-flow hydrostatic transmissions. Said transmission contains dividing reduction unit 2, two parallel final hydrostatic drives with pumps 3, 4 and hydraulic motors 5, 6, track reduction units 17, 18 and two planetary mechanisms. Planetary mechanisms are installed between hydraulic motors 17, 18 and track reduction units 17, 18. Sun gears 9, 10 of planetary mechanisms are connected with each hydraulic motor by two similar gear trains 7, 9. Carriers 11, 12 of each planetary mechanism are connected with epicyclic wheels 14, 13 of other planetary mechanism and with track reduction units 17, 18. invention improves maneuverability of tractor, provides economic recuperation of brake power from trailing side to leading side at turning of tractor, reduced power load on engine at turning, reduced power losses in hydrostatic drives of transmission of tractor with possibility of use of hydrostatic drives of lower installed power.
EFFECT: improved service characteristics of tractor.
FIELD: transport engineering; automobiles with positive displacement hydraulic drive.
SUBSTANCE: proposed transmission includes constant-capacity guided-vane hydraulic pump mechanically connected with vehicle engine communicating through pressure, drain and suction hydraulic lines through hydraulic distributor enclosing pressure and drain hydraulic lines and playing the part of reversor with at least one constant-capacity reversible guide-vane hydraulic motor to transmit torque to one or two driving wheels of automobile. Spaces of suction and drain hydraulic lines communicate with space of hydraulic tank. Suction hydraulic line passes through adjustable hydraulic restrictor whose control lever is mechanically coupled with automobile accelerator pedal.
EFFECT: simplified design of transmission, reduced fuel consumption and weight of transmission and its cost, and increased efficiency of automobile.
18 cl, 5 dwg
FIELD: mechanical engineering; machine building hydraulics.
SUBSTANCE: invention can be used on vehicles and machine-and-tractor units operating under unsteady conditions of movement. Proposed device contains planetary train 1, reactive link 3 connected with drive gear of oil pump 5. Planetary train is connected through carrier shaft with gearbox 9 and is set into operation by engine 11. Two-step adjustable restrictor 12 is installed in pressure main line of pump. Safety valve 14 and control cock 15 are connected to input of adjustable restrictor, being also installed in pressure main line of pump pneumohydraulic accumulator, being end member of pressure main line, is provided with three spaces. It consists of hydraulic cylinder, free piston, piston with rod, piston position regulator, oil line and oil channel. Space between pistons is filled with oil which regulates volume.
EFFECT: reduced influence of vibrations of external traction load onto functioning of machine-and-tractor unit.
FIELD: transport engineering; hydrostatic transmissions.
SUBSTANCE: proposed hydrostatic transmission contains pumping unit consisting of main and makeup pumps driven by vehicle engine, hydraulic motors connected by main hydraulic lines with pumping unit and forming circulating hydraulic circuit, and electrically driven self-contained pump whose delivery space is connected with hydraulic circuit formed by main hydraulic lines. Hydrostatic transmission is furnished additionally with sealed hydraulic tank with device for charging its air space with compressed air from vehicle pneumatic system and containing shutoff cock, compressed air pressure regulator in sealed hydraulic tank with safety valve and vacuum manual control valve to discharge compressed air from sealed hydraulic tank, two-position manual control valve for alternate hydraulic coupling of suction space of self-contained electrically-driven pump with hydraulic tank and with device for charging the tank with working liquid, check valve arranged in drain hydraulic line at inlet of sealed hydraulic tank, and manually controlled shutoff valve in suction hydraulic line at outlet of sealed hydraulic tank.
EFFECT: improved reliability of hydrostatic transmission of vehicle designed for operation under various road conditions.
5 cl, 1 dwg
FIELD: mechanical engineering.
SUBSTANCE: invention can be used in different vehicles and in devices and mechanisms for clashless engagement of driven shafts. Proposed torque converter contains drive and driven units of converter. Drive unit is made in form of disks 2-5 with slots freely fitted on splined shaft 1. Movable blades are fitted in said slots. Driven unit of converter is made in form of cylindrical housing 7 with driven shaft 16 and rings 11 and 12 fitted on shaft. Disks 2-5 with blades 6 of drive unit of converter are arranged inside rings. Slots in disks 2-5 of drive unit of converter are made through being arranged tangentially. Each of rings 11, 12 in cylindrical housing 7 of converter driven unit is installed for rolling on guide 13, being connected with axle-shaft 14 flush-fitted in cradle of step bearing 15 whose body is in rigid engagement with cylindrical housing 7. With drive unit rotating, summary driven torque is formed from its hydraulic and inertia components. Formulas for calculating the torque are given in description of invention.
EFFECT: improved efficiency of hydraulic - inertia converter, its control system, gearbox of converter and method of torque conversion.
24 cl, 1 tbl, 10 dwg
FIELD: mechanical engineering; vehicle hydraulic drives.
SUBSTANCE: proposed recuperative reversible stepless hydraulic transmission of wheeled vehicle contains drive engine 5, recuperator 20 with overrunning clutch 24, controllable reversible hydraulic machine 18 with pressure and suction and control plunger 8 communicating with hydraulic control system through pipelines, follow-up hydraulic booster with variable-capacity pump 12 of reverse capacity, four non-controllable hydraulic machines 29-32. Each of said hydraulic machines has vehicle wheel, and wheels of vehicle are in contact with road pavement. Recuperator 20 is made in form of planetary reduction gear whose carrier 19 is connected with pump 12 and with hydraulic machine 18 provided with two diametric pressure and two diametric suction spaces and connected with hydraulic machines 29-32 by pipelines. Hydraulic machine 18 contains "floating" plunger 33 with two cylindrical grooves between two end face spaces and "polar" plunger by channels of which end face spaces of floating plunger 33 are communicated, overlapped or reversed with pressure and suction spaces of hydraulic machine 18. Cylindrical grooves of floating plunger 33 synchronously overlap or hydraulically communicate two pressure and two suction spaces of hydraulic machine 18. Lever 6 of polar plunger is mechanically connected with corresponding slot of plate 3 of vehicle speed and reverse control member.
EFFECT: reduced number of control members, dispensing with brake system improved cross-country capacity of vehicle, reduced fuel consumption, reduced acceleration time, increased efficiency.
5 cl, 11 dwg
FIELD: public building structures, particularly drives for showcase rotation.
SUBSTANCE: drive to rotate showcase substantially formed as superimposed disc 4 installed on pin 5 provides force transmission from drive 12 to disc 4 by means of flexible tie having tensioning means. Flexible tie is formed as closed loop of chain 10 having rigid links. The chain passes around the disc 4 along disc surface generator. Drive has sprocket 11 of driving means. The sprocket 11 is installed on shaft of hydraulic drive 12. Hydraulic drive 12 is mounted on plate 13 moving in radial direction relative disc 4 by hydraulic power cylinder 16.
EFFECT: increased safety of the drive, improved disc position adjustment, reduced size, simplified mounting and enhanced maintainability.
7 cl, 2 dwg
FIELD: transport mechanical engineering.
SUBSTANCE: device comprises electric means for measuring working volume of pumps and hydraulic motors and pickup (60) for measuring the speed of rotation of the shaft of the pump station. The electric circuits are provided with threshold control members (67) and (80) interconnected between pickup (6) and the electric means. Between threshold control members (67) and (80) and electric means for changing working volume of pumps (67) and (80) and hydraulic motors (13), (14), (17), and (18) of the drive of end wheels are variable resistors (77), (78), (86), and (87) that are controlled by pickups (89) and (89) of pressure difference in hydraulic circuits of the drive of the intermediate wheels and the drive of each pair of end wheels.
EFFECT: enhanced reliability and prolonged service life.
3 cl, 4 dwg
FIELD: mechanical engineering; production of drive units for engineering tools and motor vehicles.
SUBSTANCE: the invention is pertaining to the field of mechanical engineering and may be used in production of drive units for engineering tools and motor vehicles. The self-regulating infinitely variable speed transmission contains: an input shaft 9 and an output shaft 6, a centrifugal type nonadjustable hydraulic pump 3, a gear differential unit 2 with two output shafts 5, 6 and a nonadjustable hydraulic motor 4. The hydraulic pump 3 is connected to the gear differential unit output shaft 5. The nonadjustable hydraulic motor 4 is connected to the gear differential unit output shaft 6, which is an output shaft of the gear differential unit output shaft. Self-regulation of a torque of the output shaft is depending on a load by changing the number of revolutions per a minute of the centrifugal pump using the differential gear of the he self-regulating infinitely variable speed transmission. The technical result is an increased affordability due to reduction of a quantity of gears and lack of the throttling losses of a liquid and to the complete self-regulation.
EFFECT: the invention ensures an increased affordability due to reduction of a quantity of gears and lack of the throttling losses of a liquid and to the complete self-regulation.