CN207945043U - A kind of vehicle to run variable speed hydraulic motor - Google Patents
A kind of vehicle to run variable speed hydraulic motor Download PDFInfo
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- CN207945043U CN207945043U CN201820153022.5U CN201820153022U CN207945043U CN 207945043 U CN207945043 U CN 207945043U CN 201820153022 U CN201820153022 U CN 201820153022U CN 207945043 U CN207945043 U CN 207945043U
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- oil
- oil pocket
- distribution seat
- vehicle
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Abstract
A kind of vehicle to run variable speed hydraulic motor disclosed by the utility model, including shell, stator, rotor, output shaft, piston, roller, oil distribution seat, valve plate and rear cover, shell, stator, oil distribution seat and rear cover are fixedly connected sequentially from front to back；Valve plate is installed in oil distribution seat, the first oil pocket, the second oil pocket and third oil pocket are disposed in oil distribution seat from front to back, the first oil pocket of connection is respectively provided in valve plate and matches circulation road with the second of respective rotor channel with circulation road, for being connected to the second oil pocket with the first of respective rotor channel, match circulation road for being connected to third oil pocket and the third in respective rotor channel；It is additionally provided with valve chamber in oil distribution seat, speed change spool is movably set in valve chamber, the wall of oil distribution seat is equipped with control port, supports being equipped with resetting spring between the rear end and rear cover of speed change spool.The utility model is simple and reasonable, and manipulation is convenient, can adjust output displacement size, stable work in work.
Description
Technical field
The utility model is related to hydraulic motor technical field, more particularly to a kind of vehicle to run variable speed hydraulic motor.
Background technology
Hydraulic motor is the transmission device for realizing the conversion of liquid-function amount, in each machinery field using relatively broad, by people
It is known and common.For example, vehicle to run hydraulic motor is typically used to the drive system of vehicle, it is dynamic to provide operation for vehicle
Power.But in the process of moving due to vehicle, it goes up a slope or needs low-speed big when overloaded, and just needed in level road or zero load
The small torque of high speed is wanted, and the vehicle to run hydraulic motor occurred currently on the market is typically only capable to quantitative output, causes in reality
It can not achieve the smooth conversion between low-speed heave-load and high speed light loading when use, and then lead to during use that there are prodigious offices
It is sex-limited, it cannot be satisfied the actual use demand of user.Although common vehicle can realize above-mentioned function using speed changer, right
It in some special cars, such as harvester, is limited by its mechanical structure and limitations, retarder can not be used, thus in work
Still it will appear drawbacks described above when making.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of vehicle to run compensator pressure is provided
Motor, simple and reasonable, manipulation is convenient, can adjust output displacement size, stable work in work.
To achieve the above object, the utility model uses following technical scheme.
A kind of vehicle to run variable speed hydraulic motor, including shell, stator, rotor, output shaft, piston, roller, oil distribution seat,
Valve plate and rear cover, the shell, the stator, the oil distribution seat and the rear cover are fixedly connected sequentially from front to back；It is described
Rotor is engaged with the stator, and the outer wall of the rotor is disposed with several plunger holes being radially arranged circumferentially spacedly,
The end face of the rotor is equipped with several and one-to-one rotor channel of the plunger hole, the piston and roller cooperation peace
Loaded in the plunger hole, the inner wall of the roller and the stator abuts against；The valve plate is installed in the oil distribution seat,
The output shaft is supported in by bearing positioning in the shell, and the rear end of the output shaft is engaged with the rotor, described defeated
The front end of shaft stretches out in the outside of the shell；
The first oil pocket, the second oil pocket and third oil pocket, the oil distribution seat are disposed in the oil distribution seat from front to back
Wall on be respectively equipped with the first oil inlet and outlet communicated with first oil pocket, communicated with the third oil pocket second into fuel-displaced
Mouthful；Connection first oil pocket is respectively provided in the valve plate to match circulation road with the first of the rotor channel, be used for
Second oil pocket is connected to match circulation road with the second of the rotor channel, for being connected to the third oil pocket lead to the rotor
The third in road matches circulation road；
It is additionally provided with valve chamber in the oil distribution seat, is movably set in the valve chamber for controlling second oil pocket and institute
It states the first oil pocket and the third oil pocket switches over the speed change spool of conducting, the wall of the oil distribution seat is equipped with and the speed change
The control port of spool corresponding matching is supported between the rear end and the rear cover of the speed change spool and is equipped with resetting spring.
Further, the output shaft is supported in by two bearing being equipped with positioning in the shell.
Further, the housing central section is provided with the oil sealing with the output sealing cooperation, and the oil sealing is located at two
Between a bearing.
Further, the bearing is set as taper roll bearing.
Further, the front end of the shell is provided with the Sealing shield ring component with the output sealing cooperation.
Further, the valve plate is axially positioned between the rotor and the oil distribution seat.
Further, control oil pocket, the speed change spool are formed between the rear end and the rear cover of the speed change spool
Equipped with the valve core channel for being connected to the control port and the control oil pocket.
Further, the rear end outer wall of the speed change spool is convexly equipped with annular projection, the front end face of the annular projection with
It is supported between the oil distribution seat and is equipped with the resetting spring.
The beneficial effects of the utility model are：Vehicle to run variable speed hydraulic motor provided by the utility model, by with
The first oil pocket, the second oil pocket and third oil pocket are set gradually in font from front to back, is respectively set in oil distribution casing and the first oil
The first of chamber connection with circulation road, be connected to the second oil pocket second match with circulation road, the third that is connected to third oil pocket and circulate
Road also sets up valve chamber in oil distribution seat, and speed change spool is movably set in valve chamber, and is respectively set on the wall of oil distribution seat and the
It is corresponding first oil inlet and outlet of one oil pocket, the second oil inlet and outlet corresponding with third oil pocket, corresponding with speed change spool
Control port, when work, under the action of by oil pressure and resetting spring in control port, to change speed change spool in valve chamber
Interior axial position switches over conducting to control the second oil pocket and the first oil pocket and third oil pocket, and then carries out
Variable is adjusted, and achievees the effect that adjust output displacement size.The utility model is simple and reasonable, and manipulation is convenient, working performance
Stablize.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
In Fig. 1：1, shell；2, stator；3, rotor；31, plunger hole；32, rotor channel；4, output shaft；5, piston；6, it rolls
Column；7, oil distribution seat；71, valve chamber；72, speed change spool；721, oil pocket is controlled；722, valve core channel；723, annular projection；73, multiple
Position spring；8, valve plate；81, second matches circulation road；9, rear cover；10, bearing；11, oil sealing；12, wheel；13, Sealing shield ring group
Part；A, the first oil pocket；B, the second oil pocket；C, third oil pocket；X, control port.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.
A kind of vehicle to run variable speed hydraulic motor as shown in Figure 1, including shell 1, stator 2, rotor 3, output shaft 4, work
Plug 5, roller 6, oil distribution seat 7, valve plate 8 and rear cover 9, shell 1, stator 2, oil distribution seat 7 and rear cover 9 are fixed successively from front to back to be connected
It connects；Rotor 3 is engaged with stator 2, and the outer wall of rotor 3 is disposed with several plunger holes 31 being radially arranged circumferentially spacedly,
The end face of rotor 3 is equipped with several and 31 one-to-one rotor channel 32 of plunger hole, and piston 5 and the cooperation of roller 6 are installed on plunger
In hole 31, roller 6 and the inner wall of stator 2 abut against.Valve plate 8 is installed in oil distribution seat 7, in the present embodiment, in order to improve dress
With precision, valve plate 8 is axially positioned between rotor 3 and oil distribution seat 7.
Output shaft 4 is supported in by the positioning of bearing 10 in shell 1, specifically, in the present embodiment, output shaft 4 passes through two
A positioning of bearing 10 being equipped with is supported in shell 1, it is preferable that bearing 10 is set as taper roll bearing.1 middle part of shell
It is provided with the oil sealing 11 with the sealing cooperation of output shaft 4, oil sealing 11 is located between two bearings 10, is let out to avoid hydraulic oil
Leakage.The rear end of output shaft 4 is engaged with rotor 3, and the front end of output shaft 4 stretches out in the outside of shell 1, in use, before output shaft 4
End is fixedly attached to the wheel 12 of vehicle by mounting flange, drives wheel 12 to rotate by output shaft 4.In the present embodiment, shell 1
Front end be provided with output shaft 4 sealing cooperation Sealing shield ring component 13, avoid the impurity such as dust from entering in shell 1, effectively
Improve the service life of the utility model.
The first oil pocket A, the second oil pocket B and third oil pocket C, the wall of oil distribution seat 7 are disposed in oil distribution seat 7 from front to back
On be respectively equipped with the first oil inlet and outlet communicated with the first oil pocket A（It is not shown in figure）, the second disengaging for communicating with third oil pocket C
Hydraulic fluid port（It is not shown in figure）；The first oil pocket A of connection is respectively provided in valve plate 8 with the first of rotor channel 32 with circulation road
（It is not shown in figure）, for being connected to the second of the second oil pocket B and rotor channel 32 with circulation road 81, for being connected to third oil pocket C
Match circulation road with the third of rotor channel 32（It is not shown in figure）.
It should be noted that in the present invention, the quantity of plunger hole and the quantity of rotor channel be it is identical, first
It is equal to the quantity of plunger hole with the quantity summation of circulation road and third with circulation road with circulation road, second, and in order to ensure matching
Flow table can accurate flow, to achieve the purpose that variable is adjusted, the second quantity and third with circulation road matches the quantity of circulation road
Identical, the first quantity with circulation road is then second with circulation road（Or third matches circulation road）Twice of quantity.If for example, rotor
With 16 plunger holes, then the quantity of rotor channel is also 16, and the first quantity with circulation road is 8, second with circulation road,
Quantity of the third with circulation road is 4.Wherein, above-mentioned 16 with circulation road in valve plate along the circumferential direction equally
Even setting, and circumferencial direction according to " first with circulation road, second with circulation road, first with circulation road, third with circulation road,
First with circulation road, second with circulation road, first with circulation road, third match circulation road ... " cycle mode arrange.
It is additionally provided with valve chamber 71 in oil distribution seat 7, is movably set in valve chamber 71 for controlling the second oil pocket B and the first oil pocket
A and third oil pocket C switches over the speed change spool 72 of conducting, and the wall of oil distribution seat 7 is equipped with and 72 corresponding matching of speed change spool
Control port X is supported between the rear end and rear cover 9 of speed change spool 72 and is equipped with resetting spring 73.
In the present embodiment, in order to improve the action sensitivity of speed change spool 72, between the rear end and rear cover 9 of speed change spool 72
It is formed with control oil pocket 721, speed change spool 72 is equipped with the valve core channel 722 for being connected to control port X with controlling oil pocket 721.
The rear end outer wall of speed change spool 72 is convexly equipped with annular projection 723, supports being equipped between the front end face and oil distribution seat 7 of annular projection 723
Resetting spring 73 so that resetting spring 73 is easy for installation.
Vehicle to run variable speed hydraulic motor provided by the utility model, when work, under original state（Not to control port X
Inside it is filled with hydraulic oil）, speed change spool 72 is by the effect of resetting spring 73 at this time so that is between the first oil pocket A and the second oil pocket B
Dissengaged positions, i.e. state shown in Fig. 1, and in the conduction state between the second oil pocket B and third oil pocket C, if at this time to first into
Oil outlet is filled with hydraulic oil, and hydraulic oil will enter rotor 3 through the first oil pocket A, first with circulation road and respective rotor channel 32
Plunger hole 31 in, under the action of piston 5, the hydraulic oil in plunger hole 31 flow to second through respective rotor channel 32 and matches respectively
Circulation road 81 and third match circulation road, and finally converge into the second oil inlet and outlet through the second oil pocket B and third oil pocket C, at this time originally
Utility model is worked with low-speed big；And works as and be filled with hydraulic oil into control port X（Generally 2MPa）When, speed change spool 72
The elastic force of resetting spring 73 is overcome to move forward due to the effect of hydraulic oil in controlled liquefaction chamber 721 so that the first oil pocket A and
It is in the conduction state between two oil pocket B, and between the second oil pocket B and third oil pocket C be in dissengaged positions, if at this time to first into
Oil outlet is filled with hydraulic oil, since the first oil pocket A is communicated with the second oil pocket B so that the hydraulic pressure oil two in the first oil inlet and outlet
Road enters in the plunger hole 31 of rotor 3, i.e., a part of hydraulic oil enters through the first oil pocket A, first with circulation road, rotor channel 32
Corresponding plunger hole 31, another part hydraulic oil then enter corresponding column through the second oil pocket B, second with circulation road 81, rotor channel 32
Consent 31, under the action of piston 5, the hydraulic oil in plunger hole 31 flow to third through respective rotor channel 32 and matches circulation road, and
The second oil inlet and outlet finally is flowed out to through third oil pocket C, the utility model discharge capacity reduces at this time, works with the small torque of high speed.
During utility model works, the roller 6 on piston 5 is along 2 curved trajectory of stator, in cycles, rotor 3 is driven to revolve
Turn, rotor 3 drives output shaft 4 to rotate, and to drive wheel 12 to rotate, driving vehicle moves forward or back.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (8)
1. a kind of vehicle to run variable speed hydraulic motor, including shell, stator, rotor, output shaft, piston, roller, oil distribution seat, match
Flow table and rear cover, the shell, the stator, the oil distribution seat and the rear cover are fixedly connected sequentially from front to back；Described turn
Sub to be engaged with the stator, the outer wall of the rotor is disposed with several plunger holes being radially arranged, institute circumferentially spacedly
The end face for stating rotor is equipped with several and one-to-one rotor channel of the plunger hole, the piston and roller cooperation installation
In in the plunger hole, the inner wall of the roller and the stator abuts against；The valve plate is installed in the oil distribution seat, institute
It states output shaft to be supported in the shell by bearing positioning, the rear end of the output shaft is engaged with the rotor, the output
The front end of axis stretches out in the outside of the shell；
It is characterized in that：The first oil pocket, the second oil pocket and third oil pocket are disposed in the oil distribution seat from front to back, it is described
Second for being respectively equipped with the first oil inlet and outlet communicated with first oil pocket on the wall of oil distribution seat, being communicated with the third oil pocket
Oil inlet and outlet；Connection first oil pocket is respectively provided in the valve plate with the first of the rotor channel with circulation
Circulation road is matched, for being connected to the third oil pocket and institute in road for being connected to second oil pocket with the second of the rotor channel
The third for stating rotor channel matches circulation road；
It is additionally provided with valve chamber in the oil distribution seat, is movably set in the valve chamber for controlling second oil pocket and described the
One oil pocket and the third oil pocket switch over the speed change spool of conducting, and the wall of the oil distribution seat is equipped with and the speed change spool
The control port of corresponding matching is supported between the rear end and the rear cover of the speed change spool and is equipped with resetting spring.
2. vehicle to run variable speed hydraulic motor according to claim 1, it is characterised in that：The output shaft is matched by two
The bearing positioning for closing setting is supported in the shell.
3. vehicle to run variable speed hydraulic motor according to claim 2, it is characterised in that：The housing central section be provided with
The oil sealing of the output sealing cooperation, the oil sealing are located between two bearings.
4. the vehicle to run variable speed hydraulic motor according to claims 1 to 3 any one, it is characterised in that：The bearing
It is set as taper roll bearing.
5. vehicle to run variable speed hydraulic motor according to claim 1, it is characterised in that：The front end of the shell is provided with
With the Sealing shield ring component of the output sealing cooperation.
6. vehicle to run variable speed hydraulic motor according to claim 1, it is characterised in that：The valve plate is axially positioned on
Between the rotor and the oil distribution seat.
7. vehicle to run variable speed hydraulic motor according to claim 1, it is characterised in that：The rear end of the speed change spool with
Control oil pocket is formed between the rear cover, the speed change spool is equipped with for being connected to the control port and the control oil pocket
Valve core channel.
8. vehicle to run variable speed hydraulic motor according to claim 1 or claim 7, it is characterised in that：After the speed change spool
End outer wall is convexly equipped with annular projection, supports being equipped with the resetting spring between the front end face of the annular projection and the oil distribution seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820153022.5U CN207945043U (en) | 2018-01-30 | 2018-01-30 | A kind of vehicle to run variable speed hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820153022.5U CN207945043U (en) | 2018-01-30 | 2018-01-30 | A kind of vehicle to run variable speed hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945043U true CN207945043U (en) | 2018-10-09 |
Family
ID=63698788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820153022.5U Active CN207945043U (en) | 2018-01-30 | 2018-01-30 | A kind of vehicle to run variable speed hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945043U (en) |
-
2018
- 2018-01-30 CN CN201820153022.5U patent/CN207945043U/en active Active
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