CN202971162U - Sliding-boot type plunger used for hydraulic plunger pump - Google Patents
Sliding-boot type plunger used for hydraulic plunger pump Download PDFInfo
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- CN202971162U CN202971162U CN 201220683805 CN201220683805U CN202971162U CN 202971162 U CN202971162 U CN 202971162U CN 201220683805 CN201220683805 CN 201220683805 CN 201220683805 U CN201220683805 U CN 201220683805U CN 202971162 U CN202971162 U CN 202971162U
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- plunger
- piston shoes
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Abstract
The utility model discloses a sliding-boot type plunger used for a hydraulic plunger pump, and belongs to hydraulic plunger pump components. The sliding-boot type plunger comprises a sliding boot and a plunger body, wherein an oil sealing ring and a supporting ring are arranged on the end face of the sliding boot, the supporting ring is arranged outside the oil sealing ring, the center of circle of the supporting ring coincides with the center of circle of the oil sealing ring, an oil storing groove is formed between the oil sealing ring and the supporting ring and provided with an opening which extends outside the end face of the sliding boot, and a lubrication hole is formed in the end face of the sliding boot and communicated with the inside of the plunger body. According to the sliding-boot type plunger used for the hydraulic plunger pump, notches which are distributed in a spiral shape are formed in the opening of the end face of the sliding boot, and therefore the fact that an oil film is continuously formed on a friction pair between the sliding boot and a thrust surface when the sliding boot slides on the thrust surface at a high speed is guaranteed, and the formed oil film is enabled to keep uniform and avoid abrasion under the function of the oil sealing ring on the end face of the sliding boot. Meanwhile, the sliding-boot type plunger used for the hydraulic plunger pump is simple in structure, capable of being applied to various types of hydraulic plunger pumps, suitable for industrial production and easy to popularize.
Description
Technical field
The utility model relates to a kind of hydraulic planger pump component, and in particular, the utility model relates generally to a kind of skid shoe type plunger for hydraulic planger pump.
Background technique
The skid shoe type plunger pump structure is designed by German BOSCH-REXROTH company the earliest, and the plunger pump of this structure is in long-term using process, and plunger piston slippery boots very volume produces premature wear or stuck, and its structure is demanded urgently improving.It is particularly the oil hydraulic pump of A10VO28 for model, be used to widely at present constant-voltage system, and for this type of frequent system that commutates, the piston shoes of this pump and the friction pair between thrust surface need enough lubricating, it is oil film, if oil film is because the width of the end face oil seal ring of piston shoes is excessive, when causing high-speed slide, the thickness of oil film loses uniformity, cause section and thrust surface to produce mechanical friction, produce wearing and tearing, be necessary thus to do for above-mentioned skid shoe type plunger pump structure the improvement in a step.
Summary of the invention
One of the purpose of this utility model is for above-mentioned deficiency, a kind of skid shoe type plunger for hydraulic planger pump is provided, solve in prior art piston shoes on thrust surface during high-speed slide with expectation, the thickness of the oil film between their friction pairs loses uniformity, thereby causes the technical problems such as mechanical friction.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of skid shoe type plunger for hydraulic planger pump provided by the utility model, comprise piston shoes and plunger body, the end face of described piston shoes is provided with oil seal ring and supporting ring, described supporting ring is placed in the outside of oil seal ring, and their center of circle overlaps, be provided with oil storage tank between described oil seal ring and supporting ring, also be provided with the notch that extends to outside the piston shoes end face on described oil storage tank; Also be provided with lubrication hole on the end face of described piston shoes, described lubrication hole is connected with the inside of plunger body.
As preferably, further technological scheme is: the medial axis of described oil storage tank and piston shoes end face is 30 and spends the angle.
Further technological scheme is: the notch that extends on described oil storage tank outside the piston shoes end face is connected with the housing of piston shoes.
Further technological scheme is: described notch is a plurality of, and is spirally distributed on oil storage tank.
Further technological scheme is: the internal diameter of described lubrication hole is 0.55 to 0.66 millimeter.
compared with prior art, one of the beneficial effects of the utility model are: by the notch that distributes in the shape of a spiral is set on the notch of piston shoes end face, guaranteed that piston shoes can continue during high-speed slide to form oil film on friction pair between them on thrust surface, and the oil film that makes aforementioned formation under the effect of oil seal ring on end face keeps evenly, therefore piston shoes all can obtain sufficient lubrication under different pressure ratings, avoid wearing and tearing, a kind of skid shoe type piston structure for hydraulic planger pump provided by the utility model is simple simultaneously, can be applicable in various types of plunger hydraulic pumps, and be suitable for industrialized production, be easy to promote.
Description of drawings
Fig. 1 is for being used for illustrating structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
With reference to figure 1, shown in Figure 2, an embodiment of the present utility model is a kind of skid shoe type plunger for hydraulic planger pump, comprise piston shoes 1 and plunger body 2, the end face of described piston shoes 1 is provided with oil seal ring 3 and supporting ring 4, described supporting ring 4 is placed in the outside of oil seal ring 3, and their center of circle overlaps, and is provided with oil storage tank 5 between described oil seal ring 3 and supporting ring 4, also is provided with the notch 51 that extends to outside piston shoes 1 end face on described oil storage tank 5; Also be provided with lubrication hole 6 on the end face of described piston shoes 1, described lubrication hole 6 is connected with the inside of plunger body 2.
With reference to shown in Figure 2, be used at the utility model the embodiment that the technical solution problem is more preferably again, described notch 51 is a plurality of, and is spirally distributed on oil storage tank 5.
Again according to another embodiment of model utility: the medial axis of described oil storage tank 5 and piston shoes 1 end face is 30 degree angles.The notch 51 that extends on described oil storage tank 5 outside piston shoes 1 end face is connected with the housing of piston shoes 1.And the internal diameter of described lubrication hole 6 is 0.55 to 0.66 millimeter.
The utility model in actual use, when plunger pump is in high pressure conditions, pressure oil enters the end face of piston shoes 1 from lubrication hole, the oil film that is formed for lubricating at oil seal ring 3 places, when carrying out revolution motion on the thrust surface of piston shoes 1 on swash plate simultaneously, under the effect of the fluting direction of oil storage tank 5 and frictional force, piston shoes 1 carry out corresponding rotation, and pressure oil namely carries out lubrication assistant from low-pressure cavity by the oil storage tank 5 that skewed slot enters piston shoes 1; And when plunger pump was in low-pressure state, fewer by the pressure oil that lubrication hole enters, at this moment, oil storage tank 5 was made lubrication assistant, was used to lubricate for piston shoes 1 end face provides lubricant oil, avoided wearing and tearing.
Except above-mentioned, also need to prove " embodiment ", " another embodiment " that speak of in this manual, " embodiment " etc., refer to specific features, structure or the characteristics described in conjunction with this embodiment and be included at least one embodiment that the application's generality describes.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification.Furthermore, when describing a specific features, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiments this feature, structure or characteristics also drop in scope of the present utility model.
Although with reference to a plurality of explanatory embodiments of the present utility model, the utility model is described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and mode of executions, and these are revised and within mode of execution will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to constituent elements and/or the layout of subject combination layout.Except modification that constituent elements and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (5)
1. skid shoe type plunger that is used for hydraulic planger pump, comprise piston shoes (1) and plunger body (2), it is characterized in that: the end face of described piston shoes (1) is provided with oil seal ring (3) and supporting ring (4), described supporting ring (4) is placed in the outside of oil seal ring (3), and their center of circle overlaps, be provided with oil storage tank (5) between described oil seal ring (3) and supporting ring (4), also be provided with the notch (51) that extends to outside piston shoes (1) end face on described oil storage tank (5); Also be provided with lubrication hole (6) on the end face of described piston shoes (1), described lubrication hole (6) is connected with the inside of plunger body (2).
2. the skid shoe type plunger for hydraulic planger pump according to claim 1 is characterized in that: the medial axis of described oil storage tank (5) and piston shoes (1) end face is 30 degree angles.
3. the skid shoe type plunger for hydraulic planger pump according to claim 1, it is characterized in that: the notch (51) that extends on described oil storage tank (5) outside piston shoes (1) end face is connected with the housing of piston shoes (1).
4. according to claim 1 or 3 described skid shoe type plungers for hydraulic planger pump is characterized in that: described notch (51) is for a plurality of, and is spirally distributed on oil storage tank (5).
5. the skid shoe type plunger for hydraulic planger pump according to claim 1, it is characterized in that: the internal diameter of described lubrication hole (6) is 0.55 to 0.66 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683805 CN202971162U (en) | 2012-12-12 | 2012-12-12 | Sliding-boot type plunger used for hydraulic plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683805 CN202971162U (en) | 2012-12-12 | 2012-12-12 | Sliding-boot type plunger used for hydraulic plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971162U true CN202971162U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683805 Expired - Fee Related CN202971162U (en) | 2012-12-12 | 2012-12-12 | Sliding-boot type plunger used for hydraulic plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN202971162U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939329A (en) * | 2014-04-29 | 2014-07-23 | 同济大学 | Clearance compensation type annular oil groove sliding shoe for plunger hydraulic pump |
| CN104806464A (en) * | 2015-02-16 | 2015-07-29 | 清华大学 | Aviation axial plunger hydraulic pump and slipping boot thereof |
| CN108150375A (en) * | 2018-01-12 | 2018-06-12 | 滁州悦达实业有限公司 | A kind of axial plunger type hydraulic pump |
| CN110925159A (en) * | 2019-12-02 | 2020-03-27 | 哈尔滨工程大学 | Axial plunger pump piston shoe of groove structure |
| CN113236551A (en) * | 2021-05-11 | 2021-08-10 | 北京中金泰达电液科技有限公司 | Plunger piston shoe assembly and plunger pump |
-
2012
- 2012-12-12 CN CN 201220683805 patent/CN202971162U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939329A (en) * | 2014-04-29 | 2014-07-23 | 同济大学 | Clearance compensation type annular oil groove sliding shoe for plunger hydraulic pump |
| CN103939329B (en) * | 2014-04-29 | 2016-08-24 | 同济大学 | A kind of pluger type hydraulic pump clearance compensation type annular oil groove piston shoes |
| CN104806464A (en) * | 2015-02-16 | 2015-07-29 | 清华大学 | Aviation axial plunger hydraulic pump and slipping boot thereof |
| CN108150375A (en) * | 2018-01-12 | 2018-06-12 | 滁州悦达实业有限公司 | A kind of axial plunger type hydraulic pump |
| CN110925159A (en) * | 2019-12-02 | 2020-03-27 | 哈尔滨工程大学 | Axial plunger pump piston shoe of groove structure |
| CN113236551A (en) * | 2021-05-11 | 2021-08-10 | 北京中金泰达电液科技有限公司 | Plunger piston shoe assembly and plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151104 Address after: 214200 Jiangsu city of Wuxi province Yixing city Xu Fang Zhuang village people's Road Patentee after: WUXI DEMEIJIA MACHINERY TECHNOLOGY CO., LTD. Address before: Yixing City, Xu Fang Zhuang village 214246 Jiangsu city of Wuxi Province Patentee before: Wuxi Hanlishi Hydraulic Pump Products Co., Ltd. |
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| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20171023 Granted publication date: 20130605 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180423 Granted publication date: 20130605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20181212 |