CN204402858U - A kind of bimetallic cylinder structure for axial piston pump - Google Patents
A kind of bimetallic cylinder structure for axial piston pump Download PDFInfo
- Publication number
- CN204402858U CN204402858U CN201420840451.1U CN201420840451U CN204402858U CN 204402858 U CN204402858 U CN 204402858U CN 201420840451 U CN201420840451 U CN 201420840451U CN 204402858 U CN204402858 U CN 204402858U
- Authority
- CN
- China
- Prior art keywords
- hole
- oil groove
- piston pump
- cylinder structure
- axial piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of bimetallic cylinder structure for axial piston pump, comprise columniform body, the centre of body is provided with transmission shaft mounting hole, plunger hole is parallel with transmission shaft mounting hole, the surperficial sintering adhesive bonding of the bottom plane of body has base copper, the center, top of body is provided with boss, the outer wall of boss is provided with conical transition portion, plunger hole inside is embedded with copper bush from the apical position of body, the top outer rim of body is provided with chamfering, the internal diameter of copper bush is less than the internal diameter of the step hole of piston bore bottom, the bottom of step hole conically, the bottom part ring of step hole is provided with the oil groove of curved trend, oil groove and plunger hole are positioned on same medial axis, the through base copper of oil groove, base copper is positioned at the outer of oil groove and is arranged with circular groove, the periphery of circular groove is provided with opening slot radially.The bimetallic cylinder structure for axial piston pump of this structure, its working life is higher and stability is better.
Description
Technical field
The utility model relates to a kind of bimetallic cylinder structure for axial piston pump.
Background technique
Axial piston pump is an important device of hydraulic system, it relies on plunger to-and-fro motion in cylinder body, the vibration-direction of plunger is parallel with the central shaft of cylinder body, thus make plunger to-and-fro motion in plunger hole produce volume-variation to realize force feed, oil suction, the advantage such as have that rated pressure is high, compact structure, efficiency are high due to plunger pump and Flow-rate adjustment is convenient, is therefore widely used in hydraulic press, engineering machinery and boats and ships.
Cylinder body is driven to rotate when axial plunger pump work by transmission shaft, make to be slidedly assemblied in cylinder body plunger hole inner plunger synchronous rotary, variable piston passes through to drive the Angulation changes of variable head and backhaul swash plate thus the adjustment realizing plunger reciprocates stroke, realize the change of oil suction and fuel delivery, oil distribution casing is installed in the bottom of cylinder body simultaneously, and oil distribution casing is used for the oil duct conversion of plunger turnover oil.Due to the kernel component that cylinder body is plunger pump, therefore working life of cylinder body and stability are directly connected to the quality of plunger pump.
Model utility content
The purpose of this utility model is the problem overcoming above-mentioned prior art, provide a kind of working life higher and stability preferably for the bimetallic cylinder structure of axial piston pump.
The purpose of this utility model is achieved through the following technical solutions:
A kind of bimetallic cylinder structure for axial piston pump, comprise columniform body, the centre of described body is provided with transmission shaft mounting hole, the top of described body is equipped with plunger hole, described plunger hole is parallel with described transmission shaft mounting hole, the surperficial sintering adhesive bonding of the bottom plane of described body has base copper, the center, top of described body is provided with boss, the outer wall of described boss is provided with conical transition portion, described plunger hole inside is embedded with copper bush from the apical position of described body, the top outer rim of described body is provided with chamfering, the internal diameter of described copper bush is less than the internal diameter of the step hole of described piston bore bottom, the bottom of described step hole conically, the bottom part ring of described step hole is provided with the oil groove of curved trend, described oil groove and described plunger hole are positioned on same medial axis, the through described base copper of described oil groove, described base copper is positioned at the outer of described oil groove and is arranged with circular groove, the periphery of described circular groove is provided with opening slot radially.
Further, the points outside on described copper bush top is positioned in described chamfering.
Further, the thickness of described base copper is 1.5mm.
Further, the side, top being positioned at described body in described transmission shaft mounting hole is provided with involute splines.
Bimetallic cylinder structure for axial piston pump described in the utility model, comprise columniform body, the centre of body is provided with transmission shaft mounting hole, the top of body is equipped with plunger hole, plunger hole is parallel with transmission shaft mounting hole, the surperficial sintering adhesive bonding of the bottom plane of body has base copper, the center, top of body is provided with boss, the outer wall of boss is provided with conical transition portion, plunger hole inside is embedded with copper bush from the apical position of body, the top outer rim of body is provided with chamfering, the internal diameter of copper bush is less than the internal diameter of the step hole of piston bore bottom, the bottom of step hole conically, the bottom part ring of step hole is provided with the oil groove of curved trend, oil groove and plunger hole are positioned on same medial axis, the through base copper of oil groove, base copper is positioned at the outer of oil groove and is arranged with circular groove, the periphery of circular groove is provided with opening slot radially.The bimetallic cylinder structure for axial piston pump of this structure, its working life is higher and stability is better.
Accompanying drawing explanation
Fig. 1 is the structural drawing of a kind of bimetallic cylinder structure for axial piston pump described in the utility model;
Fig. 2 is the left view of Fig. 1.
Embodiment
According to drawings and embodiments the utility model is described in further detail below.
As shown in Figures 1 and 2, a kind of bimetallic cylinder structure for axial piston pump described in the utility model embodiment, comprise columniform body 1, the centre of body 1 is provided with transmission shaft mounting hole 2, the top of body 1 is equipped with plunger hole 3, plunger hole 3 is parallel with transmission shaft mounting hole 2, the surperficial sintering adhesive bonding of the bottom plane of body 1 has base copper 4, the center, top of body 1 is provided with boss 5, the outer wall of boss 5 is provided with conical transition portion 6, plunger hole 3 inside is embedded with copper bush 7 from the apical position of body 1, the top outer rim of body 1 is provided with chamfering 8, the internal diameter of copper bush 7 is less than the internal diameter of the step hole 9 bottom plunger hole 3, the bottom of step hole 9 conically, the bottom of step hole 9 is provided with the oil groove 10 of curved trend, oil groove 10 and plunger hole 3 are positioned on same medial axis, the through base copper 4 of oil groove 10, base copper 4 is positioned at the outer of oil groove 10 and is arranged with circular groove 11, the periphery of circular groove 11 is provided with opening slot 12 radially.
The points outside on copper bush 7 top is positioned in chamfering 8.The thickness of base copper 4 is 1.5mm.The side, top being positioned at body 1 in transmission shaft mounting hole 2 is provided with involute splines 13.
The foregoing is only and mode of execution of the present utility model is described; be not limited to the utility model; for a person skilled in the art; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the bimetallic cylinder structure for axial piston pump, comprise columniform body, the centre of described body is provided with transmission shaft mounting hole, the top of described body is equipped with plunger hole, described plunger hole is parallel with described transmission shaft mounting hole, it is characterized in that, the surperficial sintering adhesive bonding of the bottom plane of described body has base copper, the center, top of described body is provided with boss, the outer wall of described boss is provided with conical transition portion, described plunger hole inside is embedded with copper bush from the apical position of described body, the top outer rim of described body is provided with chamfering, the internal diameter of described copper bush is less than the internal diameter of the step hole of described piston bore bottom, the bottom of described step hole conically, the bottom part ring of described step hole is provided with the oil groove of curved trend, described oil groove and described plunger hole are positioned on same medial axis, the through described base copper of described oil groove, described base copper is positioned at the outer of described oil groove and is arranged with circular groove, the periphery of described circular groove is provided with opening slot radially.
2., as claimed in claim 1 for the bimetallic cylinder structure of axial piston pump, it is characterized in that, the points outside on described copper bush top is positioned in described chamfering.
3., as claimed in claim 1 for the bimetallic cylinder structure of axial piston pump, it is characterized in that, the thickness of described base copper is 1.5mm.
4., as claimed in claim 1 for the bimetallic cylinder structure of axial piston pump, it is characterized in that, the side, top being positioned at described body in described transmission shaft mounting hole is provided with involute splines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840451.1U CN204402858U (en) | 2014-12-26 | 2014-12-26 | A kind of bimetallic cylinder structure for axial piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840451.1U CN204402858U (en) | 2014-12-26 | 2014-12-26 | A kind of bimetallic cylinder structure for axial piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402858U true CN204402858U (en) | 2015-06-17 |
Family
ID=53426724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420840451.1U Expired - Fee Related CN204402858U (en) | 2014-12-26 | 2014-12-26 | A kind of bimetallic cylinder structure for axial piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402858U (en) |
-
2014
- 2014-12-26 CN CN201420840451.1U patent/CN204402858U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |