CN204402839U - A kind of cylinder body of axial piston pump - Google Patents
A kind of cylinder body of axial piston pump Download PDFInfo
- Publication number
- CN204402839U CN204402839U CN201420840118.0U CN201420840118U CN204402839U CN 204402839 U CN204402839 U CN 204402839U CN 201420840118 U CN201420840118 U CN 201420840118U CN 204402839 U CN204402839 U CN 204402839U
- Authority
- CN
- China
- Prior art keywords
- hole
- transmission shaft
- shaft mounting
- mounting hole
- plunger
- 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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- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a kind of cylinder body of axial piston 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 surperficial sintering adhesive bonding of the bottom plane of body has base copper, from the top plan position of body, copper bush is embedded with in plunger hole, 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 less than the wheelbase between plunger hole and transmission shaft mounting hole, the close bottom of the periphery of body is provided with the outer rim of annular, the periphery of body tightens outer edge and is provided with circular groove, circular groove is positioned at the side deviating from body bottom.The cylinder body of the axial piston 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 of 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, provides a kind of working life higher and the cylinder body of the good axial piston pump of stability.
The purpose of this utility model is achieved through the following technical solutions:
A kind of cylinder body of axial piston 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 surperficial sintering adhesive bonding of the bottom plane of described body has base copper, from the top plan position of described body, copper bush is embedded with in described plunger hole, 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 less than the wheelbase between described plunger hole and described transmission shaft mounting hole, the close bottom of the periphery of described body is provided with the outer rim of annular, the periphery of described body is provided with circular groove near described outer rim, described circular groove is positioned at the side deviating from described body bottom.
Further, described base copper thickness is 1.5mm.
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.
The cylinder body of axial piston 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 surperficial sintering adhesive bonding of the bottom plane of body has base copper, from the top plan position of body, copper bush is embedded with in plunger hole, 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 less than the wheelbase between plunger hole and transmission shaft mounting hole, the close bottom of the periphery of body is provided with the outer rim of annular, the periphery of body tightens outer edge and is provided with circular groove, circular groove is positioned at the side deviating from body bottom.The cylinder body of the axial piston 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 of a kind of axial piston pump described in the utility model;
Fig. 2 is the partial enlarged drawing at P place 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 of a kind of 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 plan 1a 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 5, 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 less than the wheelbase between plunger hole and transmission shaft mounting hole, the cylindrical of body 1 is provided with the outer rim 4 of annular near bottom, the periphery of body 1 tightens outer edge 4 and is provided with circular groove 9, circular groove 9 is positioned at the side deviating from body 1 bottom.Base copper 5 thickness is 1.5mm.
Shown in composition graphs 2, 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.
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 cylinder body of an axial piston 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 surperficial sintering adhesive bonding of the bottom plane of described body has base copper, from the top plan position of described body, copper bush is embedded with in described plunger hole, 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 less than the wheelbase between described plunger hole and described transmission shaft mounting hole, the close bottom of the periphery of described body is provided with the outer rim of annular, the periphery of described body is provided with circular groove near described outer rim, described circular groove is positioned at the side deviating from described body bottom.
2. the cylinder body of axial piston pump as claimed in claim 1, it is characterized in that, described base copper thickness is 1.5mm.
3. the cylinder body of axial piston pump as claimed in claim 1, 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.
4. the cylinder body of axial piston pump as claimed in claim 3, is characterized in that, the top plan of described body is provided with stress relief grooves near described embedding pressure angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840118.0U CN204402839U (en) | 2014-12-26 | 2014-12-26 | A kind of cylinder body of axial piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840118.0U CN204402839U (en) | 2014-12-26 | 2014-12-26 | A kind of cylinder body of axial piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402839U true CN204402839U (en) | 2015-06-17 |
Family
ID=53426705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420840118.0U Expired - Fee Related CN204402839U (en) | 2014-12-26 | 2014-12-26 | A kind of cylinder body of axial piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555749A (en) * | 2015-09-30 | 2017-04-05 | 无锡市德美嘉机械科技有限公司 | A kind of hydraulic planger pump Novel cylinder body |
| CN106555750A (en) * | 2015-09-30 | 2017-04-05 | 无锡市德美嘉机械科技有限公司 | A kind of hydraulic planger pump cylinder body |
-
2014
- 2014-12-26 CN CN201420840118.0U patent/CN204402839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555749A (en) * | 2015-09-30 | 2017-04-05 | 无锡市德美嘉机械科技有限公司 | A kind of hydraulic planger pump Novel cylinder body |
| CN106555750A (en) * | 2015-09-30 | 2017-04-05 | 无锡市德美嘉机械科技有限公司 | A kind of hydraulic planger pump cylinder body |
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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 |