CN207278823U

CN207278823U - Stepless hydraulic transmission device

Info

Publication number: CN207278823U
Application number: CN201720932882.4U
Authority: CN
Inventors: 汤斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-29
Filing date: 2017-07-29
Publication date: 2018-04-27
Anticipated expiration: 2027-07-29

Abstract

A kind of stepless hydraulic transmission device, stepless hydraulic transmission device include prime bias moving vane pump, and prime bias moving vane pumps the side for being movably arranged on sliding seat, and secondary bias moving vane pump is arranged on the opposite side of sliding seat；Prime bias moving vane pump includes prime the first rotor, several prime moving vanes, the second rotor of prime and prime eccentric part that connect one to one with prime moving vane；Secondary bias moving vane pump includes secondary the first rotor, several secondary moving vanes, the second rotor of secondary to connect one to one with secondary moving vane and secondary eccentric part；Prime eccentric part is arranged in sliding seat；The displacement control device control sliding seat being located in sliding seat rotates or translational movement, changes the eccentricity of prime eccentric part and prime the first rotor.This transmission device has transmission torsion big, can not only increase output torque, can also improve output speed, output rotating speed exceedes can also pass the advantages of efficiently passing torsion under input Spindle Status.

Description

Stepless hydraulic transmission device

Technical field

Power transmission field is the utility model is related to, relates in particular to stepless hydraulic transmission device, gear reducer can be used as, The transmission device application such as speed changer, fluid coupling, fluid torque-converter.

Background technology

Transmission device is the critical piece in machine work, and variable speed drive mainly has belt/metal belt transmission, gear Transmission, hydraulic power.The shortcomings that gear drive be only have several fixations a gearratio, switch gearratio when need clutch or Fluid-flywheel clutch/torque-converters participates in work, and CVT variable speed part is by oil pump, driving wheel, metal tape, driven wheel and control oil Cylinder forms, the diameter of driving wheel and driven wheel in certain scope can consecutive variations, so as to fulfill the consecutive variations of gearratio, Gearratio is generally changed, CVT is needed according to traveling road conditions by hydraulic control system to adjust the gearratio of CVT between 0.4-7 For clutch to ensure that vehicle starting is steady, CVT, which is driven when there is transmission, transmits torsion easily skidding less than normal, is needed when gearratio changes Want speed-ratio regulation device to pass through sequential operation result to perform control, be not suitable for working during acute variation transmission.Fluid torque-converter By pump impeller, turbine, guide wheel composition, can not only transmit torque, moreover it is possible to change turbine on the premise of pump impeller rotating speed and torque are constant The size of torque.Fluid torque-converter mainly adjusts the gearratio of fluid torque-converter by the active state of liquid fluid and guide wheel, And gearratio is the number of continuous variable less than or equal to 1, torque ratio when fluid torque-converter is in efficiency operation is smaller, mistake Big torque ratio makes the efficiency of fluid torque-converter substantially reduce, and when pump impeller has turbine torsion output, secondary speed is less than pump Wheel.

Utility model content

The utility model is in high efficiency range torque ratio model mainly solving the technical problems that providing a kind of transmission efficiency Width is enclosed, transmission torsion is big, can not only increase output torque, can also improve output speed, exceed pump impeller shape in secondary speed Also the stepless hydraulic transmission device of torsion can be efficiently transmitted under state.

To achieve the above object, the utility model provides following technical solution：A kind of stepless hydraulic transmission device, it is described Stepless hydraulic transmission device includes prime bias moving vane pump, sliding seat, secondary bias moving vane pump, and displacement control Device processed；The prime bias moving vane pump is movably arranged on the side of the sliding seat, the secondary eccentric moving vane Pump is arranged on the opposite side of the sliding seat；The prime bias moving vane pump includes prime the first rotor, several primes Moving vane, the second rotor of prime and prime eccentric part to connect one to one with prime moving vane；It is described secondary eccentric living Movable vane piece pump includes secondary the first rotor, several secondary moving vanes, the secondary to connect one to one with secondary moving vane Second rotor and secondary eccentric part；The prime eccentric part is arranged in sliding seat；Bit andits control is equipped with the sliding seat Device, the displacement control device control sliding seat rotates or translational movement, changes prime eccentric part and prime the first rotor Eccentricity.

As the improvement to the utility model, fluid inlet channel and fluid outlet channels are located in the sliding seat.

As the improvement to the utility model, the secondary eccentric part be arranged on sliding seat relative to the of first side On two side faces.

As the improvement to the utility model, the sliding seat is arranged in clutch seat, clutch seat and prime the first rotor Or secondary the first rotor is concentric, organic frame clutch, clutch seat and machine when rack clutch combines are set in clutch seat Frame locks.

As the improvement to the utility model, the displacement control device includes elastic device and hydraulic device；Wherein Hydraulic device is opposite to the direction of the active force of sliding seat with elastic device to the active force of sliding seat.

As the improvement to the utility model, the liquid in liquid and fluid inlet channel in the hydraulic device passes through It is logical.

As the improvement to the utility model, the stepless hydraulic transmission device has further included planetary gears, its Middle prime the first rotor is connected by the gear of a pair of meshing with sun gear, and secondary the first rotor is engaged by another pair Gear is connected with gear ring, and power is inputted by sun gear and exported by planet carrier.

As the improvement to the utility model, prime clutch is provided with the prime the first rotor, described Secondary the first rotor on be provided with secondary clutch, ring gearwheel clutch is provided with the gear ring, in the planet Planet carrier clutch is provided with frame.

It is using the beneficial effect of above technical scheme：The stepless hydraulic transmission device is by prime bias moving vane volume Input power is switched to the kinetic energy and potential energy of liquid by pump, and by secondary eccentric moving vane positive displacement pump by liquid kinetic energy and potential energy Switch to power output, by varying the eccentric part of prime bias moving vane positive displacement pump and secondary eccentric moving vane positive displacement pump with The relative eccentricity of corresponding the first rotor is to change prime bias moving vane positive displacement pump and secondary eccentric moving vane volume Each revolution of working liquid volume is pumped, so as to achieve the purpose that to change the rotating ratio between power input shaft and power output.At this In utility model, one of which scheme sliding seat collective effect power is changed using hydraulic device and elastic device eccentric part with it is right Eccentricity between the first rotor answered, due to fluid pressure phase in the fluid pressure and fluid inlet channel in hydraulic device Together, so that the position relationship of the eccentric part in sliding seat is common by the fluid pressure in fluid inlet channel and elastic device Determine；Stepless hydraulic device can pass in moment of torsion realization automatic adjustment without sequential operation according to needed for actual loading in the program Dynamic ratio；Also make to move when power input shaft is identical with output shaft torque by the combination of multiple lock-up clutches in this scenario Power is directly transmitted without being used as medium by liquid, unpowered loss；Increase energy storage dress in a kind of scheme of the utility model Put and can be achieved to start fluid power energy storage and braking fluid power energy storage；Planetary gear machine is additionally provided with a kind of scheme of the utility model Structure, power not only do planet carrier by sun gear power input while also by stepless hydraulic actuator drives gear ring to planet Frame does power input, by varying stepless hydraulic transmission device output torque and rotating speed come adjust the output torque of planet carrier and turn Speed.

Brief description of the drawings

Fig. 1 is a kind of decomposition texture schematic diagram of embodiment of the utility model.

Fig. 2 is the structure diagram after embodiment illustrated in fig. 1 combination.

Fig. 3 is the A-A schematic cross-sectional views of Fig. 2.

Fig. 4 is a kind of improved structure schematic diagram of sliding seat in Fig. 1.

Fig. 5 is a kind of embodiment working state structure schematic diagram of sliding seat in Fig. 1.

Fig. 6 is the sliding seat another kind embodiment working state structure schematic diagram in Fig. 1.

Fig. 7 is the planar structure schematic diagram of sliding seat and clutch seat mated condition in Fig. 6.

Fig. 8 is the structure diagram that eccentric part is eccentric bushing.

Fig. 9 is a kind of structure diagram that fluid passage is not disposed in sliding seat.

Figure 10 is a kind of structure diagram of application of the utility model.

Mark is in figure：

1- prime bias moving vane pumps,

11- prime the first rotors,

15- prime clutches,

2- sliding seat,

20- clutch seats,

21- prime eccentric parts, 211- fluid inlet channels,

22 first sides

23- level eccentricity control part, 231- fluid outlet channels,

24 second sides

25- displacement control devices,

26- elastic devices,

27- hydraulic devices,

3- level bias moving vane pump,

31- level the first rotor,

32- level moving vane,

33- the second rotor of level,

35- secondary clutch,

4- racks,

61- sun gears,

62- gear rings,

63- planet carriers,

65- ring gearwheel clutch,

66- planet carrier clutch.

Embodiment

Describe the preferred embodiment of the stepless hydraulic transmission device of the utility model in detail below in conjunction with the accompanying drawings.

Refer to Fig. 1 to Fig. 3, a kind of stepless hydraulic transmission device that Fig. 1 to Fig. 3 is disclosed, the stepless hydraulic transmission dress Put and include prime bias moving vane pump 1, sliding seat 2, secondary bias moving vane pump 3, and displacement control device 25；Institute State prime bias moving vane pump 1 to be movably arranged on the side bottom surface of the sliding seat 2, the secondary eccentric moving vane pump 3 are arranged on the opposite side of the sliding seat 2, it is necessary to which explanation is described in the secondary eccentric moving vane pump 3 can be arranged on On the bottom surface of 2 opposite side of sliding seat or be arranged on the other device of 2 opposite side of sliding seat, e.g., rack or Clutch seat is first-class；Prime bias moving vane pump 1 includes prime the first rotor 11, several prime moving vanes 12 and The second rotor of prime 13 and prime eccentric part 21 that prime moving vane 12 connects one to one（In the present embodiment, the prime Moving vane and the second rotor of prime are arranged in prime the first rotor 11, invisible, and prime described in the utility model is eccentric The structure of moving vane pump 1 is identical with the structure of the secondary eccentric moving vane pump 3）；The secondary eccentric moving vane pump 3 Including secondary the first rotor 31, several secondary moving vanes 32, secondary the to connect one to one with secondary moving vane 32 Two rotors 33 and secondary eccentric part 23, each secondary moving vane 32 are rotatably connected with corresponding secondary second rotor 33, and Each secondary 33 axial series of the second rotor, the secondary eccentric part 23 are through in secondary second rotor 33, secondary first Rotor 31 is rotatably connected with secondary moving vane 32；The prime eccentric part 21 is arranged in sliding seat 2, in the present embodiment, The secondary eccentric part 23 is arranged in the second side 24 relative to the first side 22 of sliding seat 2；In the activity Seat 2 is equipped with displacement control device 25, and the displacement control device 25 includes elastic device 26 and hydraulic device 27, wherein hydraulic pressure Device 27 to the active force of sliding seat 2 with elastic device 26 to the direction of the active force of sliding seat 2 on the contrary, hydraulic device 27 controls Sliding seat 2 rotates or translational movement（Referring to Fig. 4, Fig. 5 and Fig. 7）, so as to change prime eccentric part and prime the first rotor 11 The eccentricity of eccentricity and secondary eccentric part and secondary the first rotor 31（Certainly, the displacement control device 25 can also electricity Sub- control structure, behind describe in detail）；When inputting external force from prime the first rotor 11, the prime bias moving vane The fluid in constricted zone is entered in secondary eccentric moving vane pump 3 by fluid inlet channel 211 in pump 1 is in breathing space Domain；The fluid in constricted zone is inclined into prime by fluid outlet channels 231 in the eccentric moving vane pump 3 of the secondary Expansion area is in movable vane piece of being indecisive and changeable pump 1, so as to drive the secondary the first rotor 31 and secondary second rotor 33 to rotate, is moved Power is exported from secondary the first rotor 31, and working fluid is pumped into secondary eccentric moving vane pump from prime bias moving vane and returned Return prime bias moving vane pump.

Fig. 4 is referred to, Fig. 4 is a kind of improved structure schematic diagram of sliding seat in Fig. 1.It is activity shown in Fig. 1 Seat is arranged in rack 4, and situation when secondary eccentric part 23 is located in rack 4.Fig. 7 is refer to, rack 4 can also in Fig. 4 It is clutch seat, i.e., secondary eccentric part 23 is located in clutch seat.

Preferably, in the utility model, the liquid in the hydraulic device 27 is passed through with the liquid in fluid inlet channel 211 Logical, so as to drive sliding seat 2 to move, sliding seat 2 is subject to the reaction force of elastic device 26 to drive again at the same time, so that sliding seat 2 Position relationship between rack 4 is closed by the opposing force of the fluid pressure in fluid inlet channel 211 and elastic device 26 System determines, so as to determine the eccentricity between eccentric part and corresponding the first rotor.

Preferably, the displacement control device 25 is also designed to, including sensor processor, controller and execution Mechanism, the operating eccentric whether controller root sensor needs to change the eccentric part in sliding seat according to data discriminatory analysis is away from such as Fruit needs, then assigns execute instruction, executing agency's driving sliding seat action, so as to change eccentric part and first turn to executing agency Eccentricity between son；The executing agency be hydraulic actuating mechanism, electromagnetism displacement actuator, gear/cam executing agency, Stepper motor or servomotor（Do not draw）.

Preferably, first pressure control valve is equipped with the fluid inlet channel 211, when in fluid inlet channel 211 When fluid pressure exceeds preset pressure, first pressure control valve is opened；The second pressure is equipped with the fluid outlet channels 231 Force control valve；When fluid pressure exceeds preset pressure in fluid outlet channels 231, second pressure control valve is opened.

Preferably, the prime valve by the first actuating mechanism controls is equipped with the fluid inlet channel 211；Described One actuating mechanism controls prime valve is turned on and off, liquid during unlatching in fluid inlet channel 211 and outside liquid stream It is logical；The second valve by the second actuating mechanism controls, the second executing agency control are equipped with the fluid outlet channels 231 Second valve processed is turned on and off, and the liquid when second valve is opened in fluid inlet channel 231 circulates with outside liquid.

Preferably, the fluid inlet channel 211 is equipped with elastic energy storage container, and the elastic energy storage container is pre- The dynamic stability of fluid pressure in fluid inlet channel 211 is kept in fixed volume excursion.

Fig. 5 is the sliding seat another kind embodiment working state structure schematic diagram in Fig. 1.Embodiment illustrated in fig. 5 and Fig. 1 institutes Show that embodiment is essentially identical, except that sliding seat is circular, when the tangential force that hydraulic device 27 applies with spring is counter makees When firmly differing in size, the prime eccentric part 21 in figure can rotate certain angle, so as to change eccentric part and corresponding first turn Eccentricity between son, thus change prime bias moving vane pump and secondary eccentric moving vane pump each revolution of uninterrupted from And obtain different gearratios.

Fig. 6 is referred to, Fig. 6 is the decomposition texture schematic diagram of second of embodiment of the utility model.It is described in the present embodiment Sliding seat 2 is arranged in clutch seat 20, clutch seat 20 and prime the first rotor 11 and secondary the first rotor（31）It is concentric.From Close and organic frame clutch is set on seat 20（Do not draw）, when rack clutch combines, clutch seat 20 is locked with rack.

Preferably, be additionally provided with prime lock-up clutch and secondary lock-up clutch in clutch seat 20, prime locking from Rotor and clutch seat 20 are locked in prime bias moving vane pump 1 when clutch combines；It is secondary inclined when secondary lock-up clutch combines Rotor and clutch seat 20 are locked in movable vane piece of being indecisive and changeable pump 3；Moved when prime lock-up clutch is all combined with secondary lock-up clutch Power directly passes to secondary eccentric moving vane pump 3 from prime bias moving vane pump 1 by clutch seat 20.

Preferably, the one-way clutch to interact with secondary the first rotor 31 is additionally provided with clutch seat 20, unidirectionally Clutch makes rotating speed during the rotation of clutch seat 20 be less than secondary the first rotor 31 when combining.

Preferably, it is provided with channel position regulating device in the sliding seat 2；The channel position regulating device exists Sliding seat 2 occurs to adjust initial position and the stop bits of fluid inlet channel 211 and fluid outlet channels 231 during change in location Put, the starting and ending position of fluid inlet channel 211 is corresponded to that prime bias moving vane pumps 1 constricted zone respectively The starting and ending position of the expansion area to begin with end position and secondary eccentric moving vane pump 3；Make fluid inlet channel 231 The starting and ending position of the constricted zone of corresponding secondary eccentric moving vane pump 3 and prime are inclined respectively for starting and ending position The starting and ending position of the expansion area of movable vane piece of being indecisive and changeable pump 3.

Fig. 7 is referred to, Fig. 7 is the planar structure schematic diagram of sliding seat and clutch seat cooperating state in Fig. 6 embodiments. Sliding seat 2 in Fig. 7 is square, and sliding seat 2 is limited in clutch seat 20 and is made up and down reciprocatingly by displacement control device Movement.

In the various embodiments described above, the eccentric part is eccentric shaft, and certainly, the eccentric part can also be designed to eccentric bushing Structure, is specifically shown in Fig. 8.

Fig. 8 is referred to, Fig. 8 is the structure diagram that eccentric part is eccentric bushing.It is inclined that prime the first rotor 11 is arranged on prime The center of movable vane piece of being indecisive and changeable pump 1 is connected with power input shaft, and the rotor motion part of exterior 4 series connection is the second rotor of prime 13, the second rotor of prime 13 is arranged on prime eccentric part 21（It is eccentric bushing in the present embodiment）Inside and revolved around eccentric part 21 Turn, remove the left end closed end cap of prime bias moving vane pump, secondary the first rotor for the ease of observation internal structure 31 with the structure of secondary eccentric moving vane pump 3 as prime bias moving vane pump configuration, no longer unnecessary narration here.

Fig. 9 is referred to, Fig. 9 is a kind of structure diagram that fluid passage is not disposed in sliding seat.Wherein prime first Side wall on rotor 11 is provided with fluid passage, and fluid inlet channel 211, fluid outlet channels 231 and sliding seat 2 are arranged on machine On frame 4, the fluid of prime bias moving vane pump 1 is entered in rack 4 by the side wall upper fluid passage of prime the first rotor 11 Fluid inlet channel 211 enter secondary eccentric moving vane pump 3, the fluid of secondary bias moving vane pump 3 passes through secondary the The fluid outlet channels 231 that the side wall fluid passage of one rotor 31 enters in rack 4 return to prime bias moving vane pump 1.Fig. 9 Middle rack 4 can also be that clutch seat, i.e. fluid inlet channel 211 and fluid outlet channels 231 are arranged in clutch seat, sliding seat It is limited in clutch seat and movement is moved back and forth by displacement control device.

Figure 10 is a kind of structure diagram of application of the utility model.The stepless hydraulic transmission device has further included row Star gear mechanism, wherein prime the first rotor 11 are connected by the gear of a pair of meshing with sun gear 61, first turn secondary Son 31 is connected by another pair meshed gears and gear ring 62, and power is inputted by sun gear 61 and exported by planet carrier 63.

As the improvement to the utility model, prime clutch 15 is provided with the prime the first rotor 11, Secondary clutch 35 is provided with the secondary the first rotor 31, ring gearwheel clutch 65 is provided with the gear ring 62, Planet carrier clutch 66 is provided with the planet carrier 63；When ring gearwheel clutch 65 combines, gear ring 62 is fixed, prime from Clutch 15 and secondary clutch 35 separate, and power is inputted by sun gear 61, are exported after being slowed down by planet carrier 63, and gearratio is fixation Value；When planet carrier clutch 66 combines, planet carrier 63 and gear ring 62 connect locking or planet carrier 63 and sun gear 61 connects Locking, prime clutch 15 and secondary clutch 35 separate, and power is inputted by sun gear 61, by 63 equispeed output of planet carrier, pass Dynamic ratio is 1.

When stepless hydraulic transmission device and planetary sun gear are driven with gear ring by meshed gears group, power Inputted by gear ring and exported by planet carrier；

When stepless hydraulic transmission device and planetary sun gear are driven with planet carrier by meshed gears group, move Power is inputted by sun gear and exported by gear ring；

When stepless hydraulic transmission device and planetary sun gear are driven with planet carrier by meshed gears group, move Power is inputted by planet carrier and exported by gear ring；

When stepless hydraulic transmission device and planetary gear ring are driven with planet carrier by meshed gears group, power Inputted by gear ring and exported by sun gear；

When stepless hydraulic transmission device and planetary gear ring are driven with planet carrier by meshed gears group, power Inputted by planet carrier and exported by sun gear；

Above these types combination is the simple derivative combination of Figure 10 embodiments, and combinations thereof is equally in this practicality In new protection domain.

Claims

A kind of 1. stepless hydraulic transmission device, it is characterised in that：The stepless hydraulic transmission device includes the eccentric activity of prime Vane pump（1）, sliding seat（2）, secondary bias moving vane pump（3）, and displacement control device；The eccentric movable leaf of the prime Piece pumps（1）It is movably arranged on the sliding seat（2）Side, the secondary eccentric moving vane pump（3）It is arranged on the activity Seat（2）Opposite side；The prime bias moving vane pump（1）Including prime the first rotor（11）, several prime activity leaves Piece（12）And prime moving vane（12）The second rotor of prime to connect one to one（13）With prime eccentric part（21）；It is described Secondary bias moving vane pump（3）Including secondary the first rotor（31）, several secondary moving vanes（32）And secondary movable leaf Piece（32）The second rotor of secondary to connect one to one（33）With secondary eccentric part（23）；The prime eccentric part（21）It is arranged on Sliding seat（2）On；In the sliding seat（2）Displacement control device is equipped with, the displacement control device controls sliding seat（2）Turn Dynamic or translational movement, changes prime eccentric part and prime the first rotor（11）Eccentricity.
2. stepless hydraulic transmission device according to claim 1, it is characterised in that：Fluid inlet channel（211）And fluid Exit passageway（231）It is located at the sliding seat（2）On.
3. stepless hydraulic transmission device according to claim 1, it is characterised in that：The secondary eccentric part（23）It is arranged on Sliding seat（2）Relative to first side（22）Second side（24）On.
4. stepless hydraulic transmission device according to claim 1, it is characterised in that：The sliding seat（2）It is arranged on clutch Seat（20）On, clutch seat（20）With prime the first rotor（11）Or secondary the first rotor（31）It is concentric, in clutch seat（20）On Organic frame clutch, the clutch seat when rack clutch combines are set（20）Locked with rack.
5. the stepless hydraulic transmission device according to any one claim in Claims 1-4, it is characterised in that：Institute The displacement control device stated includes elastic device（26）And hydraulic device（27）；Wherein hydraulic device（27）To sliding seat（2）'s Active force and elastic device（26）To sliding seat（2）Active force direction it is opposite.
6. stepless hydraulic transmission device according to claim 5, it is characterised in that：The hydraulic device（27）Interior liquid Body and fluid inlet channel（211）Interior fluid communication.
7. the stepless hydraulic transmission device according to any one claim in Claims 1-4, it is characterised in that：Institute The stepless hydraulic transmission device stated has further included planetary gears, wherein prime the first rotor（11）Pass through the tooth of a pair of meshing Wheel and sun gear（61）Connect, secondary the first rotor（31）Pass through another pair meshed gears and gear ring（62）Connection one Rise, power is by sun gear（61）Input is by planet carrier（63）Output.
8. stepless hydraulic transmission device according to claim 7, it is characterised in that：In the prime the first rotor（11） On be provided with prime clutch（15）, in the secondary the first rotor（31）On be provided with secondary clutch（35）, described Gear ring（62）On be provided with ring gearwheel clutch（65）, in the planet carrier（63）On be provided with planet carrier clutch（66）.