CN108730508A - A kind of mechanical electronic hydraulic boosting-type gearshift for speed changer - Google Patents
A kind of mechanical electronic hydraulic boosting-type gearshift for speed changer Download PDFInfo
- Publication number
- CN108730508A CN108730508A CN201810967485.XA CN201810967485A CN108730508A CN 108730508 A CN108730508 A CN 108730508A CN 201810967485 A CN201810967485 A CN 201810967485A CN 108730508 A CN108730508 A CN 108730508A
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- oil
- piston
- lead screw
- driving motor
- speed changer
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- 239000012530 fluid Substances 0.000 claims abstract description 35
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
Abstract
The invention discloses a kind of mechanical electronic hydraulic boosting-type gearshifts for speed changer, including accumulator, the accumulator include accumulator shell, driving motor, oil conservator and piston push rod；The accumulator shell is internally provided with oil pocket, and the oil pocket is for accommodating oil, and the shell offers the first hydraulic fluid port and the second hydraulic fluid port, and first oil port is connected with oil duct；The output shaft of the driving motor is set in the oil pocket, and the output shaft of driving motor is provided with piston compatible with oil pocket, and the piston under the promotion of driving motor for squeezing at oil to the oil duct in oil pocket；Mobilizable piston push rod is provided at the oil duct, the piston push rod is used for mobile when by oil pressure and pushes the executive component in speed changer；The oil conservator is connected to by the second hydraulic fluid port with oil pocket, and second hydraulic fluid port can be connected or be closed in piston back-and-forth movement.The present invention has the advantages that at low cost, simple for structure and cushion performance is good.
Description
Technical field
The present invention relates to speed changer field more particularly to a kind of mechanical electronic hydraulic boosting-type gearshifts for speed changer.
Background technology
To realize that the self shifter of speed changer, the gearshift of various principles are applied.Such as patent
CN201710059234 etc., using hydraulic system, including components such as oil cylinder, oil pump, reversal valve, filter, hydraulic cylinders, this
The system structure of sample is complicated and cost is higher.For another example patent CN 201710390585.6 etc., using bi-motor, block selecting angular displacement
Sensor, shift angular transducer and corresponding mechanical transmission mechanism realize the gear selecting and gear shift operation of AMT, and cost also compared with
Height, in addition, needing precisely to coordinate in control using two motors, it is possible to which appearance extension shelves have some setbacks or even extension shelves are unsuccessful
Phenomenon.Also such as patent 201510289991.4 carries out the shift of parallel-axes gears system using electromagnetic actuator, but electric
Magnet clutch can not effectively control shift time, the problem of being susceptible to impact.
Invention content
For this reason, it may be necessary to a kind of mechanical electronic hydraulic boosting-type gearshift for speed changer is provided, it is in the prior art to solve
Gearshift is of high cost, complicated, shift when the problem of being susceptible to impact.
To achieve the above object, a kind of mechanical electronic hydraulic boosting-type gearshift for speed changer is inventor provided, including
Accumulator, the accumulator include accumulator shell, driving motor, oil conservator and piston push rod；
The accumulator shell is internally provided with oil pocket, and for accommodating oil, the accumulator shell offers the oil pocket
First hydraulic fluid port and the second hydraulic fluid port, first oil port are connected with oil duct；
The output shaft of the driving motor is set in the oil pocket, and the output shaft of driving motor is provided with mutually fits with oil pocket
The piston matched, the piston under the promotion of driving motor for squeezing at oil to the oil duct in oil pocket；
Mobilizable piston push rod is provided at the oil duct, the piston push rod is used for mobile when by oil pressure and pushes away
Executive component in dynamic speed changer；
The oil conservator is connected to by the second hydraulic fluid port with oil pocket, second hydraulic fluid port can be connected in piston back-and-forth movement or
It is closed.
Further, the driving motor is linear motor, and the output shaft of the linear motor is connect with piston.
Further, the driving motor is lead screw motor, and the piston bush is set at the lead screw of lead screw motor；The silk
The screw rod bushing of bar motor is equipped with feed screw nut, and the feed screw nut bears against piston, for pushing piston when lead screw rotates.
Further, elastic component is additionally provided between the feed screw nut and piston, the elastic component can be in feed screw nut
It compresses, and can be extended far from piston in feed screw nut when close to piston, for slowing down thrust or pressure.
Further, the elastic component is spring or shrapnel.
Further, snap ring is also arranged at the lead screw, the snap ring is set to feed screw nut and lead screw motor shell
Between.
Further, further include drive motor controller and oil pressure sensor, the drive motor controller and driving are electric
Machine connects, and turns degree and torsion in the startup, stopping and the course of work for controlling driving motor；The oil pressure sensor setting
At the inner wall of the oil pocket, and oil pressure sensor is connect with drive motor controller, in the oil pocket for detecting accumulator
Oil pressure.
Further, the piston bush is equipped with piston packing, and the piston push rod is arranged with piston push rod sealing ring.
It is different from the prior art, the mechanical electronic hydraulic boosting-type gearshift for speed changer described in above-mentioned technical proposal, wraps
Accumulator is included, the accumulator includes accumulator shell, driving motor, oil conservator and piston push rod；The accumulator shell
It is internally provided with oil pocket, for the oil pocket for accommodating oil, the shell offers the first hydraulic fluid port and the second hydraulic fluid port, first hydraulic fluid port
Place is connected with oil duct；The output shaft of the driving motor is set in the oil pocket, and the output shaft of driving motor is provided with and oil
The compatible piston of chamber, the piston under the promotion of driving motor for squeezing at oil to the oil duct in oil pocket；The oil duct
Place is provided with mobilizable piston push rod, and the piston push rod is used for mobile when by oil pressure and pushes the execution in speed changer
Element；The oil conservator is connected to by the second hydraulic fluid port with oil pocket, and second hydraulic fluid port can be connected or close in piston back-and-forth movement
It closes.Such setting may be implemented to achieve the effect that high thrust exports using low-power machine, and the thrust of oil pressure is with good
Cushion performance makes shift process more smooth out, compact-sized and be easy to graft application, and at low cost and reliability is high.
Description of the drawings
Fig. 1 is the operating diagram for the mechanical electronic hydraulic boosting-type gearshift for speed changer that one embodiment of the invention is related to
One；
Fig. 2 is the operating diagram for the mechanical electronic hydraulic boosting-type gearshift for speed changer that one embodiment of the invention is related to
Two.
Reference sign：
1, driving motor；
2, lead screw；
3, accumulator shell；
4, elastic component；
5, the first hydraulic fluid port；
6, feed screw nut；
7, oil pressure sensor；
8, piston packing；
9, piston push rod sealing ring；
10, piston push rod；
11, snap ring；
12, piston；
13, the second hydraulic fluid port；
14, oil duct.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
It applies example and attached drawing is coordinated to be explained in detail.
It please refers to Fig.1 and Fig. 2, it is described the present invention provides a kind of mechanical electronic hydraulic boosting-type gearshift for speed changer
Mechanical electronic hydraulic boosting-type gearshift for speed changer is used for self shifter.
In the particular embodiment, the mechanical electronic hydraulic boosting-type gearshift for speed changer includes accumulator, described
Accumulator includes accumulator shell 3, driving motor 1, oil conservator and piston push rod 10.The accumulator is for generating and storing pressure
Power, the oil conservator is for oil in reserve and releases stress, the holding to speed changer under the action of accumulator of the piston push rod 10
Units apply pressure.
The accumulator shell 3 is internally provided with oil pocket, and for accommodating oil, the accumulator shell 3 opens up the oil pocket
There are the first hydraulic fluid port 5 and the second hydraulic fluid port 13, oil duct 14 is connected at first hydraulic fluid port 5.The output shaft of the driving motor 1 is arranged
In in the oil pocket, the output shaft of driving motor 1 is provided with piston 12 compatible with oil pocket, and the piston 12 can be in oil pocket
It can be moved back and forth along the inner wall of oil pocket, and the side of piston 12 is bonded completely with the madial wall of oil pocket, such setting makes
Piston 12 can be squeezed under the promotion of driving motor 1 at oil to the oil duct 14 in oil pocket, and the pressure in oil pocket is made to increase,
Increase so as to cause the oil pressure in oil pocket, increased oil pressure can act on push-rod piston so that push-rod piston can be outwardly
Pressure.
Mobilizable piston push rod 10, the inside of the side and oil duct 14 of the push-rod piston are provided at the oil duct 14
Wall is bonded completely, prevents the oil spill in oil pocket from going out, and pressure can not be formed by being also prevented from oil pocket, and piston push rod 10 can be in oil pressure
Under effect in oil duct 14 back and forth movement, under the premise of sealing oil duct 14, it is mobile when by oil pressure and to speed changer
Executive component presses.The oil conservator is connected to by the second hydraulic fluid port 13 with the oil pocket of accumulator, and second hydraulic fluid port 13 can be in work
It is connected or is closed when filling in 12 back and forth movement, after the second hydraulic fluid port 13 closure, the pressure in oil pocket can be because of the continuation of piston 12
It squeezes and increases, after the conducting of the second hydraulic fluid port 13, oil pocket is connected to oil conservator, and the pressure in oil pocket can be reduced rapidly to nothing.
When driving motor 1 rotates forward, the output shaft of driving motor 1 acts on piston 12 so that piston 12 is far from driving electricity
Machine 1 moves, to squeeze the oil in oil pocket, after piston 12 moves to the second hydraulic fluid port 13 so that the second hydraulic fluid port 13 is enclosed, piston
12 continue to move far from driving motor 1, squeeze the oil in oil pocket, and the pressure in oil pocket becomes larger, and the oil in oil pocket becomes with pressure
It power and is extruded into oil duct 14, to push piston push rod 10 to be moved far from the first hydraulic fluid port 5, until piston push rod 10 touches
The executive component of speed changer, piston push rod 10 continue to move, and piston push rod 10 applies pressure to the executive component of speed changer at this time；
When driving motor 1 inverts, with piston one, the direction far from the first hydraulic fluid port 5 moves the output shaft of driving motor 1 in the same direction, until
Piston 12 does not seal the second hydraulic fluid port 13, the conducting of the second hydraulic fluid port 13, and the pressure in oil pocket becomes smaller, and the oil in oil duct 14 is back to oil
Intracavitary, the pressure for acting on piston push rod 10 disappear, and piston push rod 10 does not squeeze the executive component of speed changer, finally becomes step by step
The executive component of fast device reacts on piston push rod 10, and piston push rod 10 is close to the second hydraulic fluid port 13.
In a further embodiment, 12 straight line back and forth movement of piston is pushed in order to realize, the driving motor 1 can be
The output shaft of linear motor, the linear motor is connect with piston 12.When linear motor rotates forward, the output shaft of linear motor is stretched
Long, band piston 12 is moved far from driving motor 1, and when linear motor inverts, the output shaft of linear motor shortens, band piston
12 move close to driving motor 1, thus the straight line back and forth movement of piston 12 may be implemented in such setting.
In another embodiment, the driving motor 1 can also be lead screw motor, and the lead screw motor is also known as lead screw stepping
Motor or linear stepping motor, be by magnet rotor iron core by with generated by stator pulse electromagnetic field interactions by
Rotation is generated, lead screw motor is linear movement convert rotational motion inside motor.The output shaft of lead screw motor is lead screw 2,
The piston 12 is sheathed on the end of the lead screw 2 of lead screw motor；The lead screw 2 of the lead screw motor is arranged with feed screw nut 6, described
Feed screw nut 6 bears against piston 12, and when the lead screw 2 of lead screw motor rotates, feed screw nut 6 rolls back and rationalize the threading action of lead screw 2,
The rotary motion of lead screw 2 is allow to be converted to the straight line back and forth movement of feed screw nut 6, such setting is so that feed screw nut 6
Piston 12 can be pushed to move when lead screw 2 rotates.Specifically, the feed screw nut 6 is limited in lead screw motor by snap ring 11
Lead screw 2 on so that feed screw nut 6 can be along the screw thread relative rotation of the lead screw 2 of lead screw motor, so as to so that lead screw spiral shell
Mother 6 can generate displacement.
In a further embodiment, elastic component 4, and lead screw spiral shell are additionally provided between the feed screw nut 6 and piston 12
Mother 6 and piston 12 are located at the two end faces of 4 telescopic direction of elastic component, and specifically, the elastic component 4 is spring or shrapnel.
The elastic component 4 can be compressed when feed screw nut 6 is close to piston 12, and the elastic force that compression generates is respectively acting on lead screw respectively
Nut 6 and piston 12 prevent the pressure that gearshift acts on speed changer from exploding, and cause to change for slowing down thrust or pressure
Impact force is generated when gear.
The oil in oil pocket is leaked out from the gap of piston 12 and accumulator shell in order to prevent, in a further embodiment,
The piston 12 is arranged with piston packing 8, and the piston push rod 10 is arranged with piston push rod sealing ring 9.
The course of work of gearshift is illustrated so that lead screw motor is driving motor 1 as an example below：
(1) 10 boosting-type start process of piston push rod (Fig. 2 is become from Fig. 1 states)：Lead screw motor drives lead screw clockwise
Rotation, feed screw nut 6 move to right under threaded function, move to right elastic component 4 with feed screw nut 6, elastic component 4 is on one side by buckling
Shape on one side moves to right piston 12.After piston 12, which moves to right, encloses the second hydraulic fluid port 13, right side liquid oil will be pressurized and form pressure
Power oil.Pressure oil pushes piston push rod 10 to move to right and externally do work, and can form thrust in the shift braking in speed changer
The executive components such as device or clutch.In this course of work, the power source that lead screw motor, lead screw 2, feed screw nut 6 form can carry
For the original thrust Fm of actuator；Fm acts on piston 12, and making its right side oil pressure P=Fm/S1, (S1 is the cross section of piston 12
Product), according to Pascal's law --- the pressure of liquid everywhere is consistent, it is known that (S2 is piston to Fs=P*S2=Fm*S2/S1
Cross-sectional area in 10 oil pocket of push rod), i.e. the motive force Fs thrust Fms more original than actuator of piston push rod 10 increases S2/S1
Times, reach reinforcement effect.Due to the self-locking effect of feed screw nut 6, motor can stop external output torque, the gearshift
It is capable of providing the stable static thrust acted on shift executive component.
(2) 10 returning movement process of piston push rod (Fig. 1 is become from Fig. 2 states)：Lead screw motor drives lead screw 2 to turn counterclockwise
Dynamic, feed screw nut 6 moves to left under threaded function.With moving to left for feed screw nut 6, elastic component 4 starts to uphold deformation, while piston
12 gradually move to left.Feed screw nut 6 will drive entire piston 12 to move to left after moving further at snap ring 11, as piston 12 is led
After logical second hydraulic fluid port 13, right side liquid oil will complete pressure release.Piston push rod 10 is because of left pressure oil body in this process
Product becomes larger to form negative pressure and move to left, no longer externally acting.At the executive components such as shift brake or clutch in speed changer
In release conditions.
In a further embodiment, further include drive motor controller and oil pressure sensor 7, the driving motor control
Device is connect with driving motor 1, turns degree and torsion in the startup, stopping and the course of work for controlling driving motor 1；The oil
Pressure sensor 7 is set at the inner wall of the oil pocket, and oil pressure sensor 7 is connect with drive motor controller, for detecting storage
Oil pressure in the oil pocket of energy device.The fuel injection pressure signal of pressure sensor, drive motor controller can be utilized to may be implemented pair in this way
The automatic adjustment of 1 impulse stroke of driving motor, it is ensured that the stabilization of gearshift thrust output Fs, even if holding in speed changer
After units have certain abrasion, pressing force Fs constant enough is still ensured that, in the gearshift procedure that speed changer may be implemented
The guarantee of gear shift consistency.
It should be noted that although the various embodiments described above have been described herein, it is not intended to limit
The scope of patent protection of the present invention.Therefore, based on the present invention innovative idea, to embodiment described herein carry out change and repair
Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within the scope of patent protection of the present invention.
Claims (8)
1. a kind of mechanical electronic hydraulic boosting-type gearshift for speed changer, which is characterized in that including accumulator, the accumulator packet
Include accumulator shell, driving motor, oil conservator and piston push rod；
The accumulator shell is internally provided with oil pocket, and for the oil pocket for accommodating oil, the accumulator shell offers first
Hydraulic fluid port and the second hydraulic fluid port, first oil port are connected with oil duct；
The output shaft of the driving motor is set in the oil pocket, and the output shaft of driving motor is provided with compatible with oil pocket
Piston, the piston under the promotion of driving motor for squeezing at oil to the oil duct in oil pocket；
Mobilizable piston push rod is provided at the oil duct, the piston push rod is used for mobile when by oil pressure and pushes and become
Executive component in fast device；
The oil conservator is connected to by the second hydraulic fluid port with oil pocket, and second hydraulic fluid port can be connected or close in piston back-and-forth movement
It closes.
2. the mechanical electronic hydraulic boosting-type gearshift according to claim 1 for speed changer, which is characterized in that the driving
Motor is linear motor, and the output shaft of the linear motor is connect with piston.
3. the mechanical electronic hydraulic boosting-type gearshift according to claim 1 for speed changer, which is characterized in that the driving
Motor is lead screw motor, and the piston bush is set at the lead screw of lead screw motor；The screw rod bushing of the lead screw motor is equipped with lead screw spiral shell
Mother, the feed screw nut bears against piston, for pushing piston when lead screw rotates.
4. the mechanical electronic hydraulic boosting-type gearshift according to claim 3 for speed changer, which is characterized in that the lead screw
Elastic component is additionally provided between nut and piston, the elastic component can be compressed when feed screw nut is close to piston, and can be in lead screw
Nut is extended far from piston, for slowing down thrust or pressure.
5. the mechanical electronic hydraulic boosting-type gearshift according to claim 4 for speed changer, which is characterized in that the elasticity
Part is spring or shrapnel.
6. the mechanical electronic hydraulic boosting-type gearshift according to claim 3 for speed changer, which is characterized in that the lead screw
Place is also arranged with snap ring, and the snap ring is set between feed screw nut and lead screw motor shell.
7. the mechanical electronic hydraulic boosting-type gearshift according to claim 1 for speed changer, which is characterized in that further include driving
Dynamic electric machine controller and oil pressure sensor, the drive motor controller is connect with driving motor, for controlling driving motor
Start, turn degree and torsion in stopping and the course of work；The oil pressure sensor is set at the inner wall of the oil pocket, and oil pressure
Sensor is connect with drive motor controller, the oil pressure in oil pocket for detecting accumulator.
8. the mechanical electronic hydraulic boosting-type gearshift according to claim 1 for speed changer, which is characterized in that the piston
It is arranged with piston packing, the piston push rod is arranged with piston push rod sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967485.XA CN108730508B (en) | 2018-08-23 | 2018-08-23 | Electro-mechanical-hydraulic force-increasing type gear shifting mechanism for transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967485.XA CN108730508B (en) | 2018-08-23 | 2018-08-23 | Electro-mechanical-hydraulic force-increasing type gear shifting mechanism for transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730508A true CN108730508A (en) | 2018-11-02 |
| CN108730508B CN108730508B (en) | 2023-12-05 |
Family
ID=63943100
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|---|---|---|---|
| CN201810967485.XA Active CN108730508B (en) | 2018-08-23 | 2018-08-23 | Electro-mechanical-hydraulic force-increasing type gear shifting mechanism for transmission |
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