CN204402845U - For the cylinder body of axial variable plunger pump - Google Patents
For the cylinder body of axial variable plunger pump Download PDFInfo
- Publication number
- CN204402845U CN204402845U CN201420840206.0U CN201420840206U CN204402845U CN 204402845 U CN204402845 U CN 204402845U CN 201420840206 U CN201420840206 U CN 201420840206U CN 204402845 U CN204402845 U CN 204402845U
- Authority
- CN
- China
- Prior art keywords
- hole
- cylinder body
- plunger pump
- transmission shaft
- axial variable
- 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 the cylinder body for axial variable plunger pump, comprise columniform body, the centre of body is provided with transmission shaft mounting hole, the top plan of body is equipped with plunger hole, plunger hole is parallel with transmission shaft mounting hole, the bottom of body is provided with the groove of annular, the internal surface sintering of groove is embedded with the base copper protruding out groove, plunger hole inside is embedded with copper bush from the top plan position of body, 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 of step hole is provided with the oilhole parallel with piston bore centerline, the through base copper of oilhole, wheelbase between oilhole and transmission shaft mounting hole is greater than the wheelbase between plunger hole and transmission shaft mounting hole, the two ends of the periphery of body are respectively equipped with the stepped slot of annular, the submarginal position of top plan of body is provided with two tapped holes.The cylinder body for axial variable plunger pump of this structure, it has the higher and good advantage of stability in working life.
Description
Technical field
The utility model relates to a kind of cylinder body for axial variable plunger pump.
Background technique
Axial variable plunger 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 variable plunger pump works 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 cylinder body of axial variable plunger pump.
The purpose of this utility model is achieved through the following technical solutions:
For the cylinder body of axial variable plunger pump, comprise columniform body, the centre of described body is provided with transmission shaft mounting hole, the top plan of described body is equipped with plunger hole, described plunger hole is parallel with described transmission shaft mounting hole, the bottom of described body is provided with the groove of annular, the internal surface sintering of described groove is embedded with the base copper protruding out described groove, described plunger hole inside is embedded with copper bush from the top plan position of described body, 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 of described step hole is provided with the oilhole parallel with described piston bore centerline, the through described base copper of described oilhole, wheelbase between described oilhole and described transmission shaft mounting hole is greater than the wheelbase between described plunger hole and described transmission shaft mounting hole, the two ends of the periphery of described body are respectively equipped with the stepped slot of annular, the submarginal position of top plan of described body is provided with two tapped holes.
Further, described base copper thickness is 1.5mm.
Further, described depth of groove is 0.5mm.
Further, the assembling width being positioned at the stepped slot of described bodies top is 20mm.
Further, the edge that the top of described body is positioned at described plunger hole is provided with embedding pressure angle, copper bush described in described embedding pressure angle pressure holding.
Further, the top plan of described body is provided with stress relief grooves near described embedding pressure angle.
Cylinder body for axial variable plunger pump described in the utility model, comprise columniform body, the centre of body is provided with transmission shaft mounting hole, the top plan of body is equipped with plunger hole, plunger hole is parallel with transmission shaft mounting hole, the bottom of body is provided with the groove of annular, the internal surface sintering of groove is embedded with the base copper protruding out described groove, plunger hole inside is embedded with copper bush from the top plan position of body, 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 of step hole is provided with the oilhole parallel with piston bore centerline, the through base copper of oilhole, wheelbase between oilhole and transmission shaft mounting hole is greater than the wheelbase between plunger hole and transmission shaft mounting hole, the two ends of the periphery of body are respectively equipped with the stepped slot of annular, the submarginal position of top plan of body is provided with two tapped holes.The cylinder body for axial variable plunger pump of this structure, it has the higher and good advantage of stability in working life.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the cylinder body for axial variable plunger pump described in the utility model;
Fig. 2 is the partial enlarged drawing at P place in Fig. 1;
Fig. 3 is the side view of body top plan in Fig. 1.
Embodiment
According to drawings and embodiments the utility model is described in further detail below.
As shown in Figure 1, the cylinder body for axial variable plunger 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 plan 1a of body 1 is equipped with plunger hole 3, plunger hole 3 is parallel with transmission shaft mounting hole 2, the bottom of body 1 is provided with the groove 4 of annular, the internal surface sintering of groove 4 is embedded with the base copper 5 protruding out groove 4, plunger hole 3 inside is embedded with copper bush 6 from the top plan 1a position of body 1, the internal diameter of copper bush 6 is less than the internal diameter of the step hole 7 bottom plunger hole 3, the bottom of step hole 7 conically, the bottom of step hole 7 is provided with the oilhole 8 with plunger hole 3 centerline parallel, the through base copper 5 of oilhole 8, wheelbase between oilhole and transmission shaft mounting hole is greater than the wheelbase between plunger hole and transmission shaft mounting hole, the two ends of the periphery of body 1 are respectively equipped with the stepped slot 9 of annular, the submarginal position of top plan 1a of body 1 is provided with two tapped holes 12.
Base copper 5 thickness is 1.5mm.Groove 4 is highly 0.5mm.The assembling width being positioned at the stepped slot 9 at body 1 top is 20mm.
Shown in composition graphs 2 and Fig. 3, the edge that the top of body 1 is positioned at plunger hole 3 is provided with embedding pressure angle 10, embedding pressure angle 10 pressure holding copper bush 6.The top plan 1a of body 1 is provided with stress relief grooves 11 near embedding pressure angle 10.Two tapped holes 12 are 160 degree of angles with the line of centres of base copper 5.
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 (7)
1. for the cylinder body of axial variable plunger pump, comprise columniform body, the centre of described body is provided with transmission shaft mounting hole, the top plan 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 bottom of described body is provided with the groove of annular, in described groove, sintering is embedded with the base copper protruding out described groove, described plunger hole inside is embedded with copper bush from the top plan position of described body, 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 of described step hole is provided with the oilhole parallel with described piston bore centerline, the through described base copper of described oilhole, wheelbase between described oilhole and described transmission shaft mounting hole is greater than the wheelbase between described plunger hole and described transmission shaft mounting hole, the two ends of the periphery of described body are respectively equipped with the stepped slot of annular, the submarginal position of top plan of described body is provided with two tapped holes.
2., as claimed in claim 1 for the cylinder body of axial variable plunger pump, it is characterized in that, described base copper thickness is 1.5mm.
3., as claimed in claim 1 for the cylinder body of axial variable plunger pump, it is characterized in that, described depth of groove is 0.5mm.
4., as claimed in claim 1 for the cylinder body of axial variable plunger pump, it is characterized in that, the assembling width being positioned at the stepped slot of described bodies top is 20mm.
5. as claimed in claim 1 for the cylinder body of axial variable plunger pump, it is characterized in that, the edge that the top of described body is positioned at described plunger hole is provided with embedding pressure angle, copper bush described in described embedding pressure angle pressure holding.
6. as claimed in claim 5 for the cylinder body of axial variable plunger pump, it is characterized in that, the top plan of described body is provided with stress relief grooves near described embedding pressure angle.
7., as claimed in claim 1 for the cylinder body of axial variable plunger pump, it is characterized in that, the line of centres of two tapped holes and described base copper is 160 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840206.0U CN204402845U (en) | 2014-12-26 | 2014-12-26 | For the cylinder body of axial variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840206.0U CN204402845U (en) | 2014-12-26 | 2014-12-26 | For the cylinder body of axial variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402845U true CN204402845U (en) | 2015-06-17 |
Family
ID=53426711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420840206.0U Expired - Fee Related CN204402845U (en) | 2014-12-26 | 2014-12-26 | For the cylinder body of axial variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402845U (en) |
-
2014
- 2014-12-26 CN CN201420840206.0U patent/CN204402845U/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 |