CN205638784U - Inclined disc type hydraulic motor main shaft cambered surface tooth structure - Google Patents
Inclined disc type hydraulic motor main shaft cambered surface tooth structure Download PDFInfo
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- CN205638784U CN205638784U CN201620395300.9U CN201620395300U CN205638784U CN 205638784 U CN205638784 U CN 205638784U CN 201620395300 U CN201620395300 U CN 201620395300U CN 205638784 U CN205638784 U CN 205638784U
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- main shaft
- key
- key tooth
- hydraulic motor
- disc type
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Abstract
The utility model discloses an inclined disc type hydraulic motor main shaft cambered surface tooth structure, including the main shaft of ability with hydraulic motor's cylinder body internal spline, be equipped with ability and cylinder body internal spline engage's key tooth on the main shaft, the arcwall face on the key tooth length direction is followed for using key tooth both ends as the starting point to the both sides working face of key tooth, and the central point of key rack circle shape working face centers on the centre of a circle and the central coincidence of the ball pivot of cylinder body of the circle of alignment of shafts rotation of axes formation. The application of the utility model relates to a technical scheme can avoid leaking the work efficiency who has improved the motor because of overturning moment produces between cylinder body and the valve plate to realize the stability of motor operation performance.
Description
Technical field
This utility model relates to hydraulic test parts technical field, particularly to a kind of inclined disc type hydraulic motor
Main shaft cambered surface toothing.
Background technology
At work, main shaft primarily serves the effect of transmission moment of torsion to hydraulic motor.In hydraulic motor, it with
Oil cylinder internal spline interacts.At work, the most conventional design is main shaft to cam-type axial piston motor
Use between the key tooth of spline and oil cylinder spline and contact by side structure, the power that the impetus between key tooth produces
The center of square and cylinder body ball pivot, not in a plane, therefore causes the existence of a tilting moment, make cylinder body with
Between valve plate, poorly sealed generation is revealed, and causes the reduction of moyor.
Utility model content
This utility model is in order to make up the deficiencies in the prior art, it is provided that one can eliminate in background technology and carry
The inclined disc type hydraulic motor main shaft cambered surface toothing of the tilting moment arrived, it is to avoid between cylinder body and valve plate therefore
Tilting moment produces leakage.
For achieving the above object, this utility model employing following technical proposals: a kind of inclined disc type hydraulic motor master
Axle cambered surface toothing, including the main shaft that can coordinate with the cylinder body internal spline of hydraulic motor, described main shaft is provided with
The key tooth that can engage with cylinder body internal spline, the both sides work surface of described key tooth is for starting point along key with key tooth two ends
The arcwall face in tine length direction, the central point of key tooth curved working face rotates the circle formed around alignment of shafts axle
The ball pivot center superposition of the center of circle and cylinder body.Due to the center of effort of main shaft and the ball pivot center superposition of cylinder body because of
This will not produce the tilting moment mentioned in background technology, can effectively prevent cylinder body with between valve plate because toppling
Moment and the leakage that produces.
Preferably, the ultimate range that the arc of the work surface of described key tooth protrudes is 0.03-0.05mm.
Preferably, the ultimate range that the work surface radian of described key tooth protrudes with the ratio of key tine length is
0.001-0.005。
Preferably, the ultimate range that the arc of the work surface of described key tooth protrudes is 0.03mm, described key tooth
The ultimate range of work surface radian protrusion and the ratio 0.001 of key tine length.
Preferably, the ultimate range that the arc of the work surface of described key tooth protrudes is 0.04mm, described key tooth
The ultimate range that work surface radian protrudes is 0.003 with the ratio of key tine length.
Preferably, the ultimate range that the arc of the work surface of described key tooth protrudes is 0.05mm, described key tooth
The ultimate range that work surface radian protrudes is 0.005 with the ratio of key tine length.
The beneficial effects of the utility model are: the technical scheme of present patent application be avoided that cylinder body and valve plate it
Between improve the work efficiency of motor because tilting moment produces leakage, and realize the steady of motor operations performance
Fixed.
Accompanying drawing explanation
Fig. 1 is the structural representation of inclined disc type hydraulic motor；
Fig. 2 is the structural representation of main shaft；
Fig. 3 is the structural representation of key tooth.
Wherein 1. cylinder body, 2. main shaft, 3. key tooth, 4. ball pivot, 5. work surface.
Detailed description of the invention
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments more of the present utility model, comes for those of ordinary skill in the art
Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Embodiment one
One inclined disc type hydraulic motor main shaft cambered surface toothing as shown in figures 1 and 3, including energy and hydraulic pressure
The main shaft 2 that cylinder body 1 internal spline of motor coordinates, described main shaft 2 is provided with and can engage with cylinder body 1 internal spline
Key tooth 3, the both sides work surface 5 of key tooth 3 is for starting point along key tooth 3 length direction with key tooth 3 two ends
Arcwall face, the central point of the work surface 5 of key tooth 3 arc rotates the circle of the circle formed around main shaft 2 central shaft
The heart and ball pivot 4 center superposition of cylinder body 1；The ultimate range that the arc of the work surface 5 of key tooth 3 protrudes is a,
A is 0.03mm, and the ratio of a length of L, a and the L of key tooth is 0.001.
Owing to the center of effort of main shaft 2 and ball pivot 4 center superposition of cylinder body 1 are thus without producing background technology
In the tilting moment mentioned, can effectively prevent cylinder body 1 with the leakage produced because of tilting moment between valve plate.
Embodiment two
A kind of inclined disc type hydraulic motor main shaft cambered surface toothing, a be the ratio of 0.04mm, a and L be 0.003.
The other technologies feature of the present embodiment is identical with embodiment one.
Embodiment three
A kind of inclined disc type hydraulic motor main shaft cambered surface toothing, a be the ratio of 0.05mm, a and L be 0.005.
The other technologies feature of the present embodiment is identical with embodiment one.
Although detailed description of the invention of the present utility model is described by the above-mentioned accompanying drawing that combines, but not to this
The restriction of utility model protection scope, one of ordinary skill in the art should be understood that in technology of the present utility model
On the basis of scheme, those skilled in the art need not to pay various amendments that creative work can make or
Deformation is still within protection domain of the present utility model.
Claims (6)
1. an inclined disc type hydraulic motor main shaft cambered surface toothing, including can be with the cylinder body internal spline of hydraulic motor
The main shaft coordinated, described main shaft is provided with the key tooth that can engage with cylinder body internal spline, it is characterised in that: described
The both sides work surface of key tooth is along the arcwall face in key tine length direction, key sector shape work with key tooth two ends for starting point
The central point making face rotates the center of circle of the circle formed and the ball pivot center superposition of cylinder body around alignment of shafts axle.
Inclined disc type hydraulic motor main shaft cambered surface toothing the most as claimed in claim 1, it is characterised in that: institute
The ultimate range that the arc of the work surface stating key tooth protrudes is 0.03-0.05mm.
Inclined disc type hydraulic motor main shaft cambered surface toothing the most as claimed in claim 2, it is characterised in that: institute
The ultimate range of work surface radian protrusion stating key tooth is 0.001-0.005 with the ratio of key tine length.
Inclined disc type hydraulic motor main shaft cambered surface toothing the most as claimed in claim 3, it is characterised in that: institute
The ultimate range that the arc of the work surface stating key tooth protrudes is 0.03mm, and the work surface radian of described key tooth is convex
The ultimate range gone out and the ratio 0.001 of key tine length.
Inclined disc type hydraulic motor main shaft cambered surface toothing the most as claimed in claim 3, it is characterised in that: institute
The ultimate range that the arc of the work surface stating key tooth protrudes is 0.04mm, and the work surface radian of described key tooth is convex
The ultimate range gone out and the ratio 0.003 of key tine length.
Inclined disc type hydraulic motor main shaft cambered surface toothing the most as claimed in claim 3, it is characterised in that: institute
The ultimate range that the arc of the work surface stating key tooth protrudes is 0.05mm, and the work surface radian of described key tooth is convex
The ultimate range gone out and the ratio 0.005 of key tine length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620395300.9U CN205638784U (en) | 2016-05-04 | 2016-05-04 | Inclined disc type hydraulic motor main shaft cambered surface tooth structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620395300.9U CN205638784U (en) | 2016-05-04 | 2016-05-04 | Inclined disc type hydraulic motor main shaft cambered surface tooth structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638784U true CN205638784U (en) | 2016-10-12 |
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ID=57049457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620395300.9U Active CN205638784U (en) | 2016-05-04 | 2016-05-04 | Inclined disc type hydraulic motor main shaft cambered surface tooth structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822494A (en) * | 2016-05-04 | 2016-08-03 | 青岛力克川液压机械有限公司 | Curved tooth structure of swashplate type hydraulic motor spindle |
-
2016
- 2016-05-04 CN CN201620395300.9U patent/CN205638784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822494A (en) * | 2016-05-04 | 2016-08-03 | 青岛力克川液压机械有限公司 | Curved tooth structure of swashplate type hydraulic motor spindle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |