CN102121514A - Hydraulic full-automatic stepless speed regulator - Google Patents
Hydraulic full-automatic stepless speed regulator Download PDFInfo
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- CN102121514A CN102121514A CN2010100391331A CN201010039133A CN102121514A CN 102121514 A CN102121514 A CN 102121514A CN 2010100391331 A CN2010100391331 A CN 2010100391331A CN 201010039133 A CN201010039133 A CN 201010039133A CN 102121514 A CN102121514 A CN 102121514A
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- stepless speed
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- hydraulic pressure
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Abstract
The invention relates to a hydraulic full-automatic stepless speed regulator, which belongs to the technical field of stepless speed regulators. The hydraulic full-automatic stepless speed regulator consists of a hydraulic pump and a hydraulic motor, wherein liquid of the hydraulic pump flows through a gear state conversion valve and is output to the hydraulic motor from an output end through a hydraulic transmission pipe, flows through the output end of the hydraulic motor, flows through the gear state conversion valve and is output back to the hydraulic pump through the hydraulic transmission pipe to form an enclosed loop, so that the torque at the output end is subjected to hydraulic transmission and then is output again. During speed regulation, the rotation speed of the hydraulic motor can be changed by changing the cavity of the hydraulic motor through a push-pull speed regulation handle so as to realize stepless speed regulation. A buffering air bag is connected with a spring of a push-pull rod, so that automatic transient regulation can be realized when a load is fluctuated and the speed regulator has high smoothness. Due to the adoption of an extremely simple structure, the cost of the hydraulic full-automatic stepless speed regulator can be greatly reduced, and the regulator can be reliably operated and is convenient to maintain.
Description
Technical field
The present invention relates to the full-automatic stepless speed adjusting gear of a kind of hydraulic pressure, belong to the stepless speed adjusting gear technical field.
Background technique
The full-automatic stepless speed adjusting gear complex structure of present hydraulic pressure, transient state is regulated and is controlled by computer plate ICU automatically.The cost height, in the energy transfer process, energy loss is bigger.
Summary of the invention
Technical problem to be solved by this invention provides the full-automatic stepless speed-regulating device of a kind of hydraulic pressure, is applicable to that automobile or other need the field of stepless speed regulation, and this apparatus structure is simple, and is cheap.
Solving the scheme that technical problem of the present invention adopts is: the full-automatic stepless speed adjusting gear of this hydraulic pressure is combined by two-part, and promptly oil hydraulic pump and oil hydraulic motor two-part constitute.Oil hydraulic pump can adopt the oil hydraulic pump of scraper-type, and its structure is consistent with existing oil hydraulic pump with working principle, and the present invention adopts two scraper-type oil hydraulic pump antithesis arranged coaxial, and its scraper plate is mutually orthogonal, makes that like this output liquid is uniformly, fluctuation can not occur.For liquid flow velocity in stepless speed adjusting gear is slowed down, reduce power loss, adopt the driving gear structure, make stepless speed adjusting gear be in the tick-over state.Cylinder block of hydraulic pumps rotates liquid is sucked and releases, and forms pressure reduction.The liquid of output exports oil hydraulic motor by the fluid power transport tube to through the range state changing valve, gets back to oil hydraulic pump then.The range state changing valve has four range states, that is: neutral gear, reverse gear, forward gears, locking shelves.Spool is combined by different passage (referring to Fig. 2).Oil hydraulic motor is made of triangle fluid-power motor rotary piston and shell.Volume-adjustment hydraulic pressure bag is installed between three rotary pistons, settles Packed air bag in the hydraulic pressure bag, can adopt soft oil resisting material to make.The axle of hydraulic motor rotor is the moment of rotation output shaft, and axle head has liquid transfer chamber and 3 connecting tubes, and the liquid transfer chamber is communicated with by connecting tube with volume-adjustment hydraulic pressure bag.Moment of rotation output axle head is driven a circular groove, and boring.Liquid transfer seal ring on the circular groove outer cover, porose on the seal ring, link to each other with stepless speed regulation hydraulic tube one end; The other end links to each other with speed governing oil hydraulic cylinder front end.Speed governing oil hydraulic cylinder Inner Front End is installed stepless speed regulation gear hydraulic pressure bag, and the rear end is installed and divided a chamber stepless speed regulation gear hydraulic pressure bag, this minute chamber hydraulic pressure bag be connected with three independent stepless speed regulation hydraulic tubes.Three independent stepless speed regulation hydraulic tubes are connected with three cavitys of oil hydraulic motor, and each cavity is different.Stepless change realizes by push-and-pull speed governing handle.Speed governing locking button is housed in the speed governing handle, and speed governing locking button below has gear locking spring, gear locking rack and gear locking card to constitute.
Its working procedure is: at first twisted posture is changed wrench, correctly selects the gear gear.Can select the locking shelves after the parking, this moment, the oil circuit of oil hydraulic pump was obstructed, and moment of torsion is infinitely great, and motor can't start, and can be suppressed flame-out.During startup, can select neutral gear, hydraulic pressure delivery side of pump and input end shoot through, oil hydraulic pump idle running, not output torque.Behind the automobile starting, change low-forward range into by neutral gear, the liquid of oil hydraulic pump exports oil hydraulic motor by the fluid power transport tube through the range state changing valve by output terminal, pass through the defeated oil hydraulic pump that is back to of range state changing valve through the oil hydraulic motor output terminal by the fluid power transport tube, form the loop of a sealing, so just with output again after the moment of torsion process hydraudynamic drive of input end.
When needing speed governing,, press speed governing locking button, promote the speed governing handle forward if will improve rotating speed, the speed governing hydraulic cylinder piston front end extruding front end stepless speed regulation gear hydraulic pressure bag that is connected with the speed governing handle, chamber stepless speed regulation gear hydraulic pressure bag is divided in suction rear end, rear end.The liquid that is squeezed out enters in the volume-adjustment hydraulic pressure bag by the stepless speed regulation hydraulic tube, causes the long-pending change of volume-adjustment hydraulic pressure inclusion big, the cavity of squeezed fluid pressure motor.Under the constant precondition of input speed, constant in order to realize the liquid input output, the rotating speed of oil hydraulic motor is forced to improve, and realizes speed governing.
Because the volume of the liquid of oil hydraulic motor output has wave properties, and moment of torsion output terminal moment of torsion and rotating speed also have fluctuation with the change of load.And liquid is incompressible, thereby in volume-adjustment hydraulic pressure bag buffer air bag is installed, so volume-adjustment hydraulic pressure bag has elasticity, will absorb Volume Changes and moment of torsion so automatically and change the wave properties that causes, make and no longer be the output characteristics deliquescing rigidity output, and have smoothness.
The long-pending increase of volume-adjustment hydraulic pressure inclusion will tie up the liquid in the oil hydraulic motor chamber, and the liquid that is extruded is back in the rear end branch chamber stepless speed regulation gear hydraulic pressure bag chamber via three independent stepless speed regulation hydraulic tubes.So just realized by low speed to stepless speed regulation at a high speed.Fast state is modulated lower-speed state belong to above-mentioned inverse process.
When automobile needs reverse gear, only need twisted posture conversion wrench to place reverse gear position, flow direction changes.Can realize reverse gear stepless speed regulation equally.
The invention has the beneficial effects as follows: because structure is extremely simple, can reduce the cost of the full-automatic stepless speed adjusting gear of hydraulic pressure greatly, the reliable operation that makes simple in structure is convenient to maintenance.When fluctuation appears in load, can realize automatic transient state adjusting, the output characteristics deliquescing no longer is rigidity output, and has good smoothness.
Description of drawings
Fig. 1 looks generalized section for apparatus of the present invention master,
Fig. 2 is the working principle structural representation.
Among Fig. 1-2: 1, speed governing locking button, 2, the speed governing handle, 3, the speed governing oil hydraulic cylinder, 4, range state conversion wrench, 5, the range state changing valve, 6, the fluid power transport tube, 7, the antithesis oil hydraulic pump, 8, cylinder block of hydraulic pumps, 9, oil hydraulic pump rotating piston scraper plate, 10, the moment of rotation input shaft, 11, the hydraulic pressure pump case, 12, buffer air bag, 13, volume-adjustment hydraulic pressure bag, 14, the fluid-power motor shell, 15, the stepless speed regulation hydraulic tube, 16, the fluid-power motor rotary piston, 17, the liquid transfer seal ring, 18, the liquid transfer hole, 19, the liquid transfer chamber, 20, the moment of rotation output shaft, 21, the stepless speed regulation hydraulic tube, 22, connecting tube, 23, the gear locking spring, 24, the gear locking rack, 25, gear locking card, 26, stepless speed regulation gear hydraulic pressure bag, 27, the speed governing hydraulic cylinder piston, 28, horizontal pull bar, 29, pull bar connects spring, 30, divide chamber stepless speed regulation gear hydraulic pressure bag, 31, input drive gear, 32, output drive gear.
Embodiment
The invention will be further described below in conjunction with accompanying drawing 1～2 and embodiment.
The installation of basic equipment: the full-automatic stepless speed adjusting gear of this hydraulic pressure is combined by two-part, and promptly oil hydraulic pump and oil hydraulic motor two-part constitute.Oil hydraulic pump can adopt the oil hydraulic pump of scraper-type, and its structure is consistent with existing oil hydraulic pump with working principle, and the present invention adopts two scraper-type oil hydraulic pump antithesis arranged coaxial, makes that like this output liquid is uniformly, fluctuation can not occur.For liquid flow velocity in stepless speed adjusting gear is slowed down, reduce power loss, adopt the driving gear structure, make stepless speed adjusting gear be in the tick-over state.The moment of rotation input is through driving gear 31, and velocity ratio 100～50: 1 with the engine speed step-down.Cylinder block of hydraulic pumps rotates liquid is sucked and releases, and forms pressure reduction.The liquid of output exports oil hydraulic motor by the fluid power transport tube to through the range state changing valve, gets back to oil hydraulic pump then.Moment output is through driving gear 32, and velocity ratio 1: 10～20 uprises output speed.The range state changing valve has four range states, that is: neutral gear, reverse gear, forward gears, locking shelves.Spool is combined by different passage (referring to Fig. 2).Oil hydraulic motor is made of triangle fluid-power motor rotary piston and shell.Volume-adjustment hydraulic pressure bag is installed between three rotary pistons, settles Packed air bag in the hydraulic pressure bag, can adopt soft oil resisting material to make.The axle of hydraulic motor rotor is the moment of rotation output shaft, and axle head has liquid transfer chamber and 3 connecting tubes, and the liquid transfer chamber is communicated with by connecting tube with volume-adjustment hydraulic pressure bag.Moment of rotation output axle head is driven a circular groove, and boring.Liquid transfer seal ring on the circular groove outer cover, porose on the seal ring, link to each other with stepless speed regulation hydraulic tube one end; A chamber stepless speed regulation gear hydraulic pressure bag install to be divided in the rear end, this minute chamber hydraulic pressure bag be connected with three independent stepless speed regulation hydraulic tubes.Three independent stepless speed regulation hydraulic tubes are connected with three cavitys of oil hydraulic motor, and each cavity is different, avoids causing the cavity short circuit.Stepless change realizes by push-and-pull speed governing handle.Speed governing locking button is housed in the speed governing handle, and speed governing locking button below has gear locking spring, gear locking rack and gear locking card to constitute.
Concrete working procedure: at first twisted posture is changed wrench 4, correctly selects the gear gear.Can select the locking shelves after the parking, this moment, the oil circuit of oil hydraulic pump was obstructed, and moment of torsion is infinitely great, and motor can't start, and can be suppressed flame-out.During startup, can select neutral gear, hydraulic pressure delivery side of pump and input end shoot through, oil hydraulic pump idle running, not output torque.Behind the automobile starting, change low-forward range into by neutral gear, the liquid of oil hydraulic pump exports oil hydraulic motor by fluid power transport tube 6 through range state changing valve 5 by output terminal, pass through the range state changing valves 5 defeated oil hydraulic pumps that are back to through the oil hydraulic motor output terminal by fluid power transport tube 6, form the loop of a sealing, so just with output again after the moment of torsion process hydraudynamic drive of input end.
When needing speed governing, press speed governing locking button, press down the gear locking spring, gear locking rack and gear locking card formation move down, and speed governing handle 2 is in removable state.If will improve rotating speed, promote speed governing handle 2 forward, the speed governing hydraulic cylinder piston 27 front ends extruding stepless speed regulation gear hydraulic pressure bag 26 that is connected with the speed governing handle, the rear end suction divides chamber stepless speed regulation gear hydraulic pressure bag 30, the liquid that is squeezed out enters in the liquid transfer chamber 19 to liquid transfer hole 18 by liquid transfer seal ring 17 orifice flows by stepless speed regulation hydraulic tube 21, enter in the volume-adjustment hydraulic pressure bag 13 by connecting tube 22 thus, cause volume-adjustment hydraulic pressure bag 13 volumes to become big, the cavity of squeezed fluid pressure motor.The liquid that has more after the cavity of oil hydraulic motor is extruded is back to branch chamber stepless speed regulation gear hydraulic pressure bag 30 by three independent stepless speed regulation hydraulic tubes 15.Under the constant precondition of input speed, constant in order to realize the liquid input output, the rotating speed of oil hydraulic motor is forced to improve, and realizes speed governing.After reaching needed rotating speed, unclamp speed governing locking button 1, the speed governing handle is for locking state.Because the volume of the liquid of oil hydraulic motor output has wave properties; Simultaneously, moment of torsion output terminal moment of torsion and rotating speed also have fluctuation with the change of load.And liquid is incompressible, thereby in volume-adjustment hydraulic pressure bag 13 buffer air bag 12 is installed, so volume-adjustment hydraulic pressure bag has elasticity, will absorb Volume Changes and moment of torsion so automatically and change the wave properties that causes.Fluctuation causes stepless speed regulation gear hydraulic pressure bag 26 and 30 stereomutations of branch chamber stepless speed regulation gear hydraulic pressure bag simultaneously, and speed governing hydraulic cylinder piston 27 is subjected to displacement.And speed governing hydraulic cylinder piston 27 connects spring 29 by pull bar and horizontal pull bar 28 is realized flexibly connecting, and makes speed governing hydraulic cylinder piston 27 that elastic displacement can take place, after impact is eliminated, and self-return.The spring of buffer air bag and pull bar is connected makes the output characteristics deliquescing, no longer be rigidity output, and has smoothness, if it is big that load suddenly becomes, can push buffer air bag 12, whole volume-adjustment hydraulic pressure bag 13 volume-diminished, it is big that the oil hydraulic motor cavity becomes, rotating speed step-down, moment of torsion become big, and the realization transient state is regulated automatically.The increase of volume-adjustment hydraulic pressure bag 13 volumes will tie up the liquid in the oil hydraulic motor chamber, and the liquid that is extruded is back in the rear end branch chamber stepless speed regulation gear hydraulic pressure bag 30 via stepless speed regulation hydraulic tube 15.So just realized by low speed to stepless speed regulation at a high speed.Fast state is modulated lower-speed state belong to above-mentioned inverse process.
When automobile needs reverse gear, only need twisted posture conversion wrench 4 to place reverse gear position, flow direction changes.Can realize reverse gear stepless speed regulation equally.
Claims (5)
1. full-automatic stepless speed adjusting gear of hydraulic pressure, it is characterized in that: the full-automatic stepless speed adjusting gear of this hydraulic pressure is combined by two-part, and promptly oil hydraulic pump and oil hydraulic motor two-part constitute.Oil hydraulic pump can adopt the oil hydraulic pump (also can adopt the oil hydraulic pump of various ways) of scraper-type, and its structure is consistent with existing oil hydraulic pump with working principle, adopts two scraper-type oil hydraulic pump antithesis arranged coaxial, makes output liquid even.Adopt the driving gear structure, make stepless speed adjusting gear be in the tick-over state.Moment of rotation is input on the axle of cylinder block of hydraulic pumps by driving gear, cylinder block of hydraulic pumps rotates liquid is sucked and releases, and constitutes pressure reduction.Output drives the oil hydraulic motor rotation to liquid through the range state changing valve by the fluid power transport tube.
2. the full-automatic stepless speed adjusting gear of hydraulic pressure according to claim 1 is characterized in that: the range state changing valve has four range states, that is: neutral gear, reverse gear, forward gears, locking shelves.Spool is combined by different passage (referring to Fig. 2).
3. the full-automatic stepless speed adjusting gear of hydraulic pressure according to claim 1, it is characterized in that: oil hydraulic motor is made of triangle fluid-power motor rotary piston and shell.Volume-adjustment hydraulic pressure bag is installed between three rotary pistons, settles Packed air bag in the hydraulic pressure bag, can adopt soft oil resisting material to make.
4. according to claim 2 or the full-automatic stepless speed adjusting gear of 3 described hydraulic pressure, it is characterized in that: the axle of hydraulic motor rotor is the moment of rotation output shaft, axle head has liquid transfer chamber and 3 connecting tubes, and the liquid transfer chamber is communicated with by connecting tube with volume-adjustment hydraulic pressure bag.Moment of rotation output axle head is driven a circular groove, and boring.Liquid transfer seal ring on the circular groove outer cover, porose on the seal ring, link to each other with stepless speed regulation hydraulic tube one end; The other end links to each other with speed governing oil hydraulic cylinder one end.Install by stepless speed regulation gear hydraulic pressure bag in the speed governing oil hydraulic cylinder, this hydraulic pressure bag is connected with the stepless speed regulation hydraulic tube.The other end of speed governing oil hydraulic cylinder is connected with the oil hydraulic motor cavity with hole on the hydraulic motor shell by the stepless speed regulation hydraulic tube.
5. the full-automatic stepless speed adjusting gear of hydraulic pressure according to claim 4 is characterized in that: stepless change realizes by push-and-pull speed governing handle.Speed governing locking button is housed in the speed governing handle, and speed governing locking button below has gear locking spring, gear locking rack and gear locking card to constitute.The speed governing hydraulic cylinder piston connects spring by pull bar to be realized flexibly connecting with horizontal pull bar, makes the speed governing hydraulic cylinder piston that elastic displacement can take place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100391331A CN102121514A (en) | 2010-01-08 | 2010-01-08 | Hydraulic full-automatic stepless speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100391331A CN102121514A (en) | 2010-01-08 | 2010-01-08 | Hydraulic full-automatic stepless speed regulator |
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| CN102121514A true CN102121514A (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010100391331A Pending CN102121514A (en) | 2010-01-08 | 2010-01-08 | Hydraulic full-automatic stepless speed regulator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19909279A1 (en) * | 1999-03-03 | 2000-09-07 | Mannesmann Rexroth Ag | Drive for hydraulic consumer e.g. on fork lift truck has electric linear motor driving pump piston |
| CN1328938A (en) * | 2000-06-21 | 2002-01-02 | 现代自动车株式会社 | Shift selecting valve for hydraulic control system of automatic speed changer |
| CN2501725Y (en) * | 2001-11-20 | 2002-07-24 | 何金涛 | Liquid energy clutch stelpless speed variator |
| CN2928570Y (en) * | 2006-07-13 | 2007-08-01 | 唐开太 | Full hydraulic stepless driver for automobile |
| CN101255914A (en) * | 2008-03-29 | 2008-09-03 | 牛相平 | Hydraulic transmission variable speed gear |
| US20080307784A1 (en) * | 2006-10-06 | 2008-12-18 | White Drive Products, Inc. | Hydraulic transmission assembly |
-
2010
- 2010-01-08 CN CN2010100391331A patent/CN102121514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19909279A1 (en) * | 1999-03-03 | 2000-09-07 | Mannesmann Rexroth Ag | Drive for hydraulic consumer e.g. on fork lift truck has electric linear motor driving pump piston |
| CN1328938A (en) * | 2000-06-21 | 2002-01-02 | 现代自动车株式会社 | Shift selecting valve for hydraulic control system of automatic speed changer |
| CN2501725Y (en) * | 2001-11-20 | 2002-07-24 | 何金涛 | Liquid energy clutch stelpless speed variator |
| CN2928570Y (en) * | 2006-07-13 | 2007-08-01 | 唐开太 | Full hydraulic stepless driver for automobile |
| US20080307784A1 (en) * | 2006-10-06 | 2008-12-18 | White Drive Products, Inc. | Hydraulic transmission assembly |
| CN101523073A (en) * | 2006-10-06 | 2009-09-02 | 怀特驱动产品有限公司 | Hydraulic transmission assembly |
| CN101255914A (en) * | 2008-03-29 | 2008-09-03 | 牛相平 | Hydraulic transmission variable speed gear |
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Application publication date: 20110713 |