CN209212684U - Hydraulic transformer and Hydraulic Power Transmission System - Google Patents
Hydraulic transformer and Hydraulic Power Transmission System Download PDFInfo
- Publication number
- CN209212684U CN209212684U CN201821482415.7U CN201821482415U CN209212684U CN 209212684 U CN209212684 U CN 209212684U CN 201821482415 U CN201821482415 U CN 201821482415U CN 209212684 U CN209212684 U CN 209212684U
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- stator
- rotor
- hydraulic
- pintle
- driving mechanism
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Abstract
This application discloses a kind of hydraulic transformer and Hydraulic Power Transmission Systems.The hydraulic transformer includes drive shaft, stator, rotor, pintle, stator driving mechanism and at least three pistons；Drive shaft is connect with rotor, rotor is located in stator, rotor is by bearing holder (housing, cover) on pintle, it is set on pintle there are three hydraulic fluid port, rotor is equipped at least three plunger shafts, and the corresponding plunger shaft of each piston, piston is located in corresponding plunger shaft, radial disbalance is arranged between rotor and stator inner wall, and stator inner wall is defined position of the piston in plunger shaft, and the both ends of plunger shaft are respectively communicated with a hydraulic fluid port in stator interior and pintle；Stator driving mechanism is connect with stator, and stator driving mechanism is for driving stator relative rotor to rotate, so as to change radial disbalance direction between rotor and stator, to adjust the pressure ratio between hydraulic fluid port.Present application addresses hydraulic transformer in the prior art, structure is complicated, transformation narrow range, the big technical problem of control difficulty.
Description
Technical field
This application involves field of mechanical technique, in particular to a kind of hydraulic transformer and Hydraulic Power Transmission System.
Background technique
Hydraulic transformer is a kind of Hydraulic Elements that pressure conversion is realized in Hydraulic Power Transmission System.It can press input
Power is expeditiously converted to another pressure output, can both be depressured and can or boost.Not only it can without restriction loss drive
Dynamic straight line load, can also drive rotary load, have wide application prospect in hydraulic constant pressure network.
Hydraulic transformer in the prior art substantially mostly uses axial piston structure, passes through the group of two Hydraulic Elements
It closes to realize, or changed come work by rotary valve plate or wobbler based on the Curve guide impeller to axial plunger pump
Become the pressure ratio between output pressure and input pressure.
Structure is complicated for current hydraulic transformer, and transformation narrow range, control difficulty is big, and limit hydraulic transformer applies model
It encloses.
Utility model content
The main purpose of the application is to provide a kind of hydraulic transformer and Hydraulic Power Transmission System, to solve in the prior art
Structure is complicated for hydraulic transformer, transformation narrow range, the big problem of control difficulty.
To achieve the goals above, according to the one aspect of the embodiment of the present application, a kind of hydraulic transformer is provided.
Hydraulic transformer according to the application includes: drive shaft, stator, rotor, pintle, stator driving mechanism and at least
Three pistons；
Drive shaft is connect with rotor, and rotor is located in stator, and rotor on pintle, is set by bearing holder (housing, cover) on pintle
There are three hydraulic fluid port, rotor is equipped at least three plunger shafts, and the corresponding plunger shaft of each piston, piston are located at corresponding work
It fills in chamber, radial disbalance is arranged between rotor and stator inner wall, and stator inner wall is defined position of the piston in plunger shaft,
The both ends of plunger shaft are respectively communicated with a hydraulic fluid port in stator interior and pintle, driving drive shaft rotation, drive shaft band turn
Son rotates in the stator, moves reciprocatingly so as to be located at the intracavitary piston of rotary piston, to adjust the pressure between hydraulic fluid port；
Stator driving mechanism is connect with stator, and stator driving mechanism is for driving stator relative rotor to rotate, so as to change
Radial disbalance direction between rotor and stator, to adjust the pressure ratio between hydraulic fluid port.
Further, stator is equipped with worm gear, and radial concentric is arranged between worm gear and rotor；
Stator driving mechanism is worm drive mechanism, and the worm screw that stator driving mechanism includes engages with the worm gear on stator；
When work, stator driving mechanism drives the worm gear rotation on stator, so as to change radial inclined between rotor and stator
Heart direction.
Further, three hydraulic fluid ports being arranged on pintle are respectively communicated with extraneous high-pressure oil passage, extraneous low pressure oil way and outer
Boundary loads oil circuit.
Further, piston is bulb stopper or plunger.
Further, at least three plunger shafts are evenly distributed on rotor.
Further, hydraulic transformer further includes stator liner, and for stator sleeve on stator liner, rotor is located at stator lining
In set.
Further, this hydraulic transformer further includes shell, and stator is located in shell, and between existing between stator and shell
Gap, shell are equipped with the first opening and the second opening, and drive shaft one end is connect by the first opening with rotor, and pintle passes through the
Two openings are connect with rotor, and pintle is fixed on shell, and rotor is fixed on shell by bearing, stator driving mechanism one
End is protruded into shell and is connect with stator.
Further, this hydraulic transformer further includes end cap, and end cap is connected on shell, and end cap is covered on the first opening
On, end cap is open equipped with third, and shell is extended by third opening in one end of drive shaft.
Further, this hydraulic transformer further includes purge cock, and purge cock is connected on shell.
To achieve the goals above, according to the another aspect of the embodiment of the present application, a kind of Hydraulic Power Transmission System is provided, is wrapped
Include above-mentioned hydraulic transformer.
In the embodiment of the present application, fixed by driving by the way of radial disbalance setting between stator inner wall and rotor
Son rotation changes radial disbalance direction between stator inner wall and rotor, has achieved the purpose that adjust the pressure ratio between hydraulic fluid port,
Mechanical structure is simplified to realize, increases transformation range, reduces the technical effect of control difficulty, and then is solved existing
There is hydraulic transformer structure in technology more complicated, transformation narrow range, the big technical problem of control difficulty.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram according to a kind of hydraulic transformer of the embodiment of the present application；
Fig. 2 is the lateral sectional view of one of Fig. 1 hydraulic transformer.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "inner", "outside", " in " etc. instructions orientation or positional relationship be based on attached
Orientation or positional relationship shown in figure.These terms are primarily to better describe the utility model and embodiment, not
For limiting indicated device, element or component must have particular orientation, or be constructed and grasped with particular orientation
Make.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in the present invention can be understood as the case may be.
In addition, term " installation ", " setting ", " being equipped with ", " connection ", " fixation ", " socket " shall be understood in a broad sense.For example,
It may be a fixed connection, be detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be direct phase
It even, or indirectly connected through an intermediary, or is two connections internal between device, element or component.
For those of ordinary skills, can understand as the case may be above-mentioned term in the present invention specifically contain
Justice.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Embodiment one
As depicted in figs. 1 and 2, this application involves a kind of hydraulic transformers, comprising: drive shaft 1, stator 2, rotor 3, flow
Axis 4, stator driving mechanism 5 and at least three pistons 6；
Drive shaft 1 is connect with rotor 3, and rotor 3 is located in stator 2, and rotor 3 is mounted on pintle 4 by bearing holder (housing, cover), flow
Axis 4 is equipped with three hydraulic fluid ports 41 (A mouthfuls, B mouthfuls and T mouthfuls), and rotor 3 is equipped at least three plunger shafts 31, and each piston 6 corresponding one
A plunger shaft 31, piston 6 are located in corresponding plunger shaft 31, and radial disbalance is arranged between 2 inner wall of rotor 3 and stator, in stator 2
Wall is defined position of the piston 6 in plunger shaft 31, and the both ends of plunger shaft 31 are respectively communicated with 2 inside of stator and pintle 4
In a hydraulic fluid port 41, driving drive shaft 1 rotates, and drive shaft 1 drives rotor 3 to rotate in stator 2, so that it is living to be located at rotor 3
Piston 6 in plug chamber 31 moves reciprocatingly, to adjust the pressure between hydraulic fluid port 41；
Stator driving mechanism 5 is connect with stator 2, and stator driving mechanism 5 is used to that 2 relative rotor 3 of stator to be driven to rotate, so that
Change radial disbalance direction between rotor 3 and stator 2, to adjust the pressure ratio between hydraulic fluid port 41.
In the embodiment of the present application, by the way of radial disbalance setting between 2 inner wall of stator and rotor 3, pass through driving
The rotation of stator 2 changes radial disbalance direction between 2 inner wall of stator and rotor 3, has reached the pressure adjusted between three hydraulic fluid ports 41
The purpose of ratio, wherein the driving rotation of stator 2 changes radial disbalance direction between 2 inner wall of stator and rotor 3 and changes rotor
The position of 3 variant 6 opposing pistons chambers 31 of orientation upper piston, and then change the pressure between hydraulic fluid port 41, to adjust hydraulic fluid port 41
Between pressure ratio.The number of parts of this hydraulic transformer is much smaller than hydraulic transformer in the prior art, to realize
Simplify mechanical structure；Due to can drive the rotation of stator 2 change between 2 inner wall of stator and rotor 3 radial disbalance direction 0 to
Between 360 °, the transformation range of this hydraulic transformer can be substantially increased in this way, simultaneously effective reduces control difficulty
Technical effect.
Further, stator 2 is equipped with worm gear, and radial concentric is arranged between worm gear and rotor 3；
Stator driving mechanism 5 is worm drive mechanism, and the worm screw that stator driving mechanism 5 includes nibbles with the worm gear on stator 2
It closes；
When work, stator driving mechanism 5 drives the worm gear rotation on stator 2, so as to change diameter between rotor 3 and stator 2
To eccentric direction.
In the present embodiment, radial concentric is arranged between worm gear and rotor 3, becomes define the rotary motion trace of stator 2 in this way,
Since stator driving mechanism 5 drives the worm gear rotation on stator 2 to may be implemented to change radial disbalance side between rotor 3 and stator 2
To the radially different heart that is, between the rotary motion trace of stator 2 and rotor 3, this hydrostatic sensor is only needed by driving stator driving
Mechanism 5, which operates, can be thus achieved the pressure ratio changed between three hydraulic fluid ports 41, complete transformation operation, to realize reduction control
The technical effect of difficulty processed.
Further, three hydraulic fluid ports 41 being arranged on pintle 4 are respectively communicated with extraneous high-pressure oil passage (A mouthfuls), extraneous low pressure
Oil circuit (T mouthfuls) and extraneous load oil circuit (B mouthfuls).
In the present embodiment, changing radial disbalance direction between 2 inner wall of stator and rotor 3 by the driving rotation of stator 2 is
Change the position of the variant 6 opposing pistons chamber 31 of orientation upper piston of rotor 3, so change extraneous high-pressure oil passage (A mouthful) with outside
Pressure between boundary's low pressure oil way (T mouthfuls), to adjust between extraneous high-pressure oil passage (A mouthfuls) and extraneous low pressure oil way (T mouthfuls)
Pressure ratio.
Further, piston 6 can be bulb stopper or plunger.
Further, at least three plunger shafts 31 are evenly distributed on rotor 3.
In the present embodiment, the quantity of plunger shaft 31 can be that 3,4,5,6,7,8,9 ... multiple plunger shafts 31 should be equal
It is even to be distributed on rotor 3, to realize preferable transformation effect.
Further, hydraulic transformer further includes stator liner 7, and stator 2 is sleeved on stator liner 7, and rotor 3 is located at fixed
In sub- bushing 7.
It should be noted that in the embodiment of the present application, stator driving mechanism should be not limited to worm gear mechanism, this field
Technical staff can be specifically arranged with actual conditions other can drive stator rotate mechanism.
In the present embodiment, the equal abrasion to complicated stator 2 of piston 6 can be reduced by setting stator liner 7,
When 7 serious wear of stator liner, stator liner 7 can be replaced, avoiding replacement, structure is complicated and cost is higher fixed
Son 2.
Further, this hydraulic transformer further includes shell 8, and stator 2 is located in shell 8, and between stator 2 and shell 8
There are gap, shell 8 is equipped with the first opening and the second opening, and 1 one end of drive shaft is connect with rotor 3 by the first opening, matched
Stream axis 4 is connect by the second opening with rotor 3, and pintle 4 is fixed on shell 8, and rotor 3 is fixed on shell 8 by bearing
On, stator driving mechanism is protruded into 5 one end in shell 8 and is connect with stator 2.Optionally, pintle 4 is fixed on shell 8 by retaining ring
On
Further, this hydraulic transformer further includes end cap 9, and end cap 9 is connected on shell 8, and end cap 9 is covered on first
In opening, end cap 9 is open equipped with third, and shell 8 is extended by third opening in one end of drive shaft 1.
Further, this hydraulic transformer further includes purge cock 10, and purge cock 10 is connected on shell 8.
In the embodiment of the present application, the side that this hydraulic transformer is arranged using radial disbalance between 2 inner wall of stator and rotor 3
Formula changes radial disbalance direction between 2 inner wall of stator and rotor 3 by the driving rotation of stator 2, has reached between adjusting hydraulic fluid port 41
Pressure ratio purpose, simplify mechanical structure to realize, increase transformation range, reduce control difficulty technology
Effect, and then solve in the prior art that hydraulic transformer structure is more complicated, transformation narrow range, the big technology of control difficulty is asked
Topic.
Based on the same technical idea, application embodiment additionally provides a kind of Hydraulic Power Transmission System, including above-mentioned hydraulic
Transformer.
In the embodiment of the present application, this Hydraulic Power Transmission System uses above-mentioned hydraulic transformer, to simplify mechanical knot
Structure increases transformation range, reduces control difficulty, improves this Hydraulic Power Transmission System operability.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of hydraulic transformer characterized by comprising drive shaft, stator, rotor, pintle, stator driving mechanism and extremely
Few three pistons；
The drive shaft is connect with the rotor, and the rotor is located in the stator, and the rotor is mounted in institute by bearing holder (housing, cover)
It states on pintle, is set on the pintle there are three hydraulic fluid port, the rotor is equipped at least three plunger shafts, and each piston pair
The plunger shaft is answered, the piston is located in the corresponding plunger shaft, diameter between the rotor and the stator inner wall
To eccentric setting, the stator inner wall is defined position of the piston in the plunger shaft, and the two of the plunger shaft
A hydraulic fluid port being respectively communicated in the stator interior and the pintle is held, drives the drive shaft to rotate, the drive shaft
It drives the rotor to rotate in the stator, moves reciprocatingly so as to be located at the intracavitary piston of the rotary piston, to adjust
Save the pressure between the hydraulic fluid port；
The stator driving mechanism is connect with the stator, and the stator driving mechanism is for driving the stator is relatively described to turn
Son rotation, so as to change radial disbalance direction between the rotor and the stator, to adjust the pressure between the hydraulic fluid port
Ratio.
2. hydraulic transformer according to claim 1, which is characterized in that the stator be equipped with worm gear, the worm gear with
Radial concentric is arranged between the rotor；
The stator driving mechanism is worm drive mechanism, the snail on worm screw and the stator that the stator driving mechanism includes
Wheel engagement；
When work, the stator driving mechanism drives the worm gear on the stator to rotate so that change the rotor with it is described fixed
Radial disbalance direction between son.
3. hydraulic transformer according to claim 1, which is characterized in that three hydraulic fluid ports being arranged on the pintle
It is respectively communicated with extraneous high-pressure oil passage, extraneous low pressure oil way and extraneous load oil circuit.
4. hydraulic transformer according to claim 1, which is characterized in that the piston is bulb stopper or plunger.
5. hydraulic transformer according to claim 1, which is characterized in that at least three plunger shaft is evenly distributed on institute
It states on rotor.
6. hydraulic transformer according to claim 1, which is characterized in that further include stator liner, the stator sleeve is mounted in
On the stator liner, the rotor is located in the stator liner.
7. hydraulic transformer according to claim 1, which is characterized in that further include shell, the stator is located at the shell
In vivo, and between the stator and the shell there are gaps, and the shell is equipped with the first opening and the second opening, the drive
Moving axis one end is connect by first opening with the rotor, and the pintle is connected by second opening with the rotor
It connects, and the pintle is fixed on the housing, the rotor is fixed on the housing by bearing, the stator driving
Mechanism is protruded into one end in the shell and is connect with the stator.
8. hydraulic transformer according to claim 7, which is characterized in that further include end cap, the end cap is connected to described
On shell, and the end cap is covered in first opening, and the end cap is open equipped with third, one end of the drive shaft
Extend the shell by third opening.
9. hydraulic transformer according to claim 7, which is characterized in that further include purge cock, the purge cock connects
It connects on the housing.
10. a kind of Hydraulic Power Transmission System, which is characterized in that including hydraulic transformer as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821482415.7U CN209212684U (en) | 2018-09-11 | 2018-09-11 | Hydraulic transformer and Hydraulic Power Transmission System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821482415.7U CN209212684U (en) | 2018-09-11 | 2018-09-11 | Hydraulic transformer and Hydraulic Power Transmission System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209212684U true CN209212684U (en) | 2019-08-06 |
Family
ID=67453903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821482415.7U Expired - Fee Related CN209212684U (en) | 2018-09-11 | 2018-09-11 | Hydraulic transformer and Hydraulic Power Transmission System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209212684U (en) |
-
2018
- 2018-09-11 CN CN201821482415.7U patent/CN209212684U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20200911 |