CN204212966U - A kind of axial piston pump thrust plate - Google Patents
A kind of axial piston pump thrust plate Download PDFInfo
- Publication number
- CN204212966U CN204212966U CN201420656959.6U CN201420656959U CN204212966U CN 204212966 U CN204212966 U CN 204212966U CN 201420656959 U CN201420656959 U CN 201420656959U CN 204212966 U CN204212966 U CN 204212966U
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- Prior art keywords
- thrust plate
- plate body
- low pressure
- piston pump
- axial piston
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a kind of axial piston pump thrust plate, comprise thrust plate body, described thrust plate body offers axis hole in the axial direction, thrust plate body offers high pressure filler opening and low pressure oil drain out, the outer cylinder surface of thrust plate body is evenly processed with multiple miniature pit, the area ratio that described miniature pit accounts for the outer cylinder surface of thrust plate body is 10%; Triangle damping slot is all offered in one end of described high pressure filler opening and low pressure oil drain out.By being processed with uniform miniature pit on the friction pair of thrust plate, can reaching on the one hand and improving thrust plate low pressure area lubrication effect, improving oil film support force, reducing the frictional force between friction pair, the impurity in fluid can be stored on the other hand; By having triangle damping slot at the end opens of high pressure filler opening and low pressure oil drain out, it is a kind of vibration damping equipment becoming flow-passing surface, can play damping function, reduces plunger pump vibration & noise in use.
Description
Technical field
The utility model relates to engineering machinery field, is specifically related to a kind of plunger pump component, refers in particular to a kind of axial piston pump thrust plate.
Background technique
Axial piston pump because of its compact structure, working pressure is high, volumetric efficiency is high, is widely used in the fields such as Aero-Space, engineering machinery, plastics machinery, metallurgy, lathe and farm machinery.Axial piston pump is the class oil hydraulic pump that technology content is very high, and its complex structure is various in style, and manufacturing process is complicated, and processing request is high.In the metastable situations of development such as numerous hydraulic element structure, technique now, axial piston pump is development, perfect in structure, material, performance, life-span etc. still.
Thrust plate is one of vital part of axial piston pump, and whether its design is reasonable will affect the noise and vibration of whole pump.The leakage rate of current thrust plate is large, and simultaneously when contacting with cylinder body, frictional force is large, reduces the usability of plunger pump.The leakage rate of thrust plate is crossed conference and is caused the volumetric efficiency of axial piston pump to reduce, and cannot reach the working pressure of axial piston pump requirement, be one of major reason of axial piston pump cisco unity malfunction; It is insufficient that the too small meeting of leakage rate causes thrust plate to lubricate, and forms axial plunger pump cylinder body and contact with the direct of thrust plate, form solid friction, produces high temperature and aggravate friction, greatly reducing the operating life of thrust plate.
Model utility content
The utility model is in order to overcome deficiency of the prior art, provide a kind of axial piston pump thrust plate, by being processed with equally distributed miniature pit on the friction pair of the cylindrical outer surface of thrust plate, improving oil film support force, reducing the frictional force between friction pair; By offering damping slot on thrust plate, reduce plunger pump vibration & noise in use.
The utility model is achieved through the following technical solutions:
A kind of axial piston pump thrust plate, comprise thrust plate body, described thrust plate body offers axis hole in the axial direction, thrust plate body offers high pressure filler opening and low pressure oil drain out, the outer cylinder surface of described thrust plate body is evenly processed with multiple miniature pit, and the area ratio that described miniature pit accounts for the outer cylinder surface of thrust plate body is 10%; All damping slot is offered in one end of described high pressure filler opening and low pressure oil drain out.
As optimal technical scheme of the present utility model, the shape of described miniature pit is cylindrical, and its diameter d is 200-400 μm, and its degree of depth h is 150-350 μm.
As optimal technical scheme of the present utility model, the cross section of described damping slot is triangle, and the angle θ of the drift angle of triangle damping slot is 30 °.
Compared with prior art, the beneficial effects of the utility model are:
1, by being processed with uniform miniature pit on the friction pair of thrust plate, can reach on the one hand and improving thrust plate low pressure area lubrication effect, improving oil film support force, reducing the frictional force between friction pair, the impurity in fluid can be stored on the other hand;
2, by having triangle damping slot at the end opens of high pressure filler opening and low pressure oil drain out, it is a kind of vibration damping equipment becoming flow-passing surface, can play damping function, reduces plunger pump vibration & noise in use.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the B portion enlarged view in Fig. 2;
Fig. 4 is axonometric drawing of the present utility model.
In figure: 1-thrust plate body; 2-axis hole; 3-high pressure filler opening; 4-low pressure oil drain out; The miniature pit of 5-; 6-damping slot.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, Fig. 1 is plan view of the present utility model, and Fig. 2 is the A-A sectional view in Fig. 1, and Fig. 3 is the B portion enlarged view in Fig. 2, and Fig. 4 is axonometric drawing of the present utility model.
Described a kind of axial piston pump thrust plate, comprise thrust plate body 1, described thrust plate body 1 offers axis hole 2 in the axial direction, thrust plate body 1 offers high pressure filler opening 3 and low pressure oil drain out 4, the outer cylinder surface of described thrust plate body 1 is evenly processed with multiple miniature pit 5, and the area ratio that described miniature pit 5 accounts for the outer cylinder surface of thrust plate body 1 is 10%; In the present embodiment, the shape of described miniature pit 5 is cylindrical, and its diameter d is 200-400 μm, and its degree of depth h is 150-350 μm.By being processed with uniform miniature pit 5 on the friction pair of thrust plate, can reaching on the one hand and improving thrust plate low pressure area lubrication effect, improving oil film support force, reducing the frictional force between friction pair, the impurity in fluid can be stored on the other hand.
All offer damping slot 6 in one end of described high pressure filler opening 3 and low pressure oil drain out 4, the cross section of described damping slot 6 is triangle, and the angle θ of the drift angle of triangle damping slot 6 is 30 °.By having triangle damping slot at the end opens of high pressure filler opening and low pressure oil drain out, it is a kind of vibration damping equipment becoming flow-passing surface, can play damping function, reduces plunger pump vibration & noise in use.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. an axial piston pump thrust plate, comprise thrust plate body (1), described thrust plate body (1) offers axis hole (2) in the axial direction, thrust plate body (1) offers high pressure filler opening (3) and low pressure oil drain out (4), it is characterized in that:
The outer cylinder surface of described thrust plate body (1) is evenly processed with multiple miniature pit (5), and the area ratio that described miniature pit (5) accounts for the outer cylinder surface of thrust plate body (1) is 10%;
Damping slot (6) is all offered in one end of described high pressure filler opening (3) and low pressure oil drain out (4).
2. a kind of axial piston pump thrust plate according to claim 1, is characterized in that: the shape of described miniature pit (5) is cylindrical, and its diameter d is 200-400 μm, and its degree of depth h is 150-350 μm.
3. a kind of axial piston pump thrust plate according to claim 1, is characterized in that: the cross section of described damping slot (6) is triangle, and the angle θ of the drift angle of triangle damping slot (6) is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420656959.6U CN204212966U (en) | 2014-11-05 | 2014-11-05 | A kind of axial piston pump thrust plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420656959.6U CN204212966U (en) | 2014-11-05 | 2014-11-05 | A kind of axial piston pump thrust plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212966U true CN204212966U (en) | 2015-03-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420656959.6U Expired - Fee Related CN204212966U (en) | 2014-11-05 | 2014-11-05 | A kind of axial piston pump thrust plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204212966U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275794A (en) * | 2015-11-02 | 2016-01-27 | 太原理工大学 | Thrust plate having low-friction surface and manufacturing method |
| CN105736355A (en) * | 2016-04-11 | 2016-07-06 | 青岛力克川液压机械有限公司 | Flow distribution structure based on dynamic pressure balance of flow distribution plate |
| CN106801657A (en) * | 2017-03-20 | 2017-06-06 | 上海工程技术大学 | A kind of return plate with dimple structure |
| CN106837728A (en) * | 2017-02-21 | 2017-06-13 | 哈尔滨工业大学 | A kind of multi-row-type inclined shaft axial plunger pump |
| CN107762757A (en) * | 2017-11-14 | 2018-03-06 | 太原理工大学 | Asymmetric distributing construction pocketed oil noise shaft orientation plunger variable pump in parallel can drop in one kind |
-
2014
- 2014-11-05 CN CN201420656959.6U patent/CN204212966U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275794A (en) * | 2015-11-02 | 2016-01-27 | 太原理工大学 | Thrust plate having low-friction surface and manufacturing method |
| CN105736355A (en) * | 2016-04-11 | 2016-07-06 | 青岛力克川液压机械有限公司 | Flow distribution structure based on dynamic pressure balance of flow distribution plate |
| CN106837728A (en) * | 2017-02-21 | 2017-06-13 | 哈尔滨工业大学 | A kind of multi-row-type inclined shaft axial plunger pump |
| CN106801657A (en) * | 2017-03-20 | 2017-06-06 | 上海工程技术大学 | A kind of return plate with dimple structure |
| CN107762757A (en) * | 2017-11-14 | 2018-03-06 | 太原理工大学 | Asymmetric distributing construction pocketed oil noise shaft orientation plunger variable pump in parallel can drop in one kind |
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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: 20150318 Termination date: 20151105 |
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| EXPY | Termination of patent right or utility model |