CN208221064U - Has the plunger pump skid shoe of dimple structure in a kind of surface - Google Patents
Has the plunger pump skid shoe of dimple structure in a kind of surface Download PDFInfo
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- CN208221064U CN208221064U CN201820648289.1U CN201820648289U CN208221064U CN 208221064 U CN208221064 U CN 208221064U CN 201820648289 U CN201820648289 U CN 201820648289U CN 208221064 U CN208221064 U CN 208221064U
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Abstract
The utility model relates to the plunger pump skid shoes that a kind of surface has dimple structure, and structure is by plunger spherical groove, damping hole, bottom groove and bottom micro-pit array structure composition.The circumferential distribution of the bottom groove of plunger pump skid shoe has the hemispherical dimples array structure of certain aspect ratio, distribution area rate；Tangential direction is moved with certain angle along the connection of the center Wei Keng of piston shoes bottom radial direction and piston shoes.When plunger pump work, micro-pit array structure can store the abrasive grain and lubricating oil of the generation that rubs between plunger pump swash plate and piston shoes, reduce piston shoes and swash plate abrasion and can form additional dynamic pressure between friction is secondary；Even if when high pressure oil can not reach piston shoes bottom groove, micro-pit array structure also can produce effective hydrostatic support in damping hole plug.Surface involved in the utility model has the plunger pump skid shoe of dimple structure, can improve the friction and greasy property between swash plate and piston shoes, prevents loose boots, extends the service life of piston shoes and swash plate.
Description
Technical field
The utility model belongs to hydraulic pump technical field, and in particular to a kind of plunger pump that surface has dimple structure is sliding
Boots.
Background technique
Plunger pump has many advantages, such as that rated pressure is high, compact-sized, high-efficient and flow is adjustable, is widely used in liquid
In the hydraulic system that the high pressures such as press, engineering machinery and ship, big flow and flow need to adjust.Plunger pump is by plunger in cylinder
It is moved back and forth in scapus consent, changes the volume of seal operation cavity, to realize plunger pump oil suction, pressure oil.Piston shoes and swash plate
It is plunger pump important component, the friction and greasy property for rubbing secondary between the two have the volumetric efficiency and functional reliability of plunger pump
Great influence.
Currently, it is to be equipped with groove in piston shoes bottom middle position that tradition, which improves piston shoes and the method for swash plate friction pair,.High pressure
Working media flows the recessed of piston shoes bottom by plunger head center damping hole, piston shoes centre bore from the plunger base of plunger pump
Slot, so that hydrostatic support is formed between piston shoes and swash plate, thus the friction between reducing the two.Once however, in working media
Impurity plugs plunger head center damping hole, hydrostatic support failure, and the friction aggravation between piston shoes and swash plate seriously affects plunger
Stabilization, the efficient operation of pump.
Summary of the invention
The utility model overcomes the shortcomings of the prior art, and the plunger pump for proposing that a kind of surface has dimple structure is slided
Boots.Minute manufacturing technology is used among the design of plunger pump skid shoe, prevents the friction between piston shoes and swash plate from aggravating phenomenon,
It is effectively improved friction secondary friction and greasy property, reduces piston shoes and swash plate abrasion.
Technical problem to be solved in the utility model is realized using following technical scheme.
A kind of surface has the plunger pump skid shoe of dimple structure, and structure is by plunger spherical groove, damping hole, bottom groove
And bottom micro-pit array structure composition.
The plunger spherical groove of plunger pump skid shoe of the surface with dimple structure is used to install the head of plunger；Piston shoes
Bottom is contacted with plunger pump swash plate, and the high pressure oil from plunger centre bore is flowed into the piston shoes by the piston shoes damping hole
Bottom groove, form hydrostatic support between swash plate and the plunger pump skid shoe bottom surface.
The bottom micro-pit array structure distribution of plunger pump skid shoe of the surface with dimple structure is in piston shoes bottom groove
Periphery.
The bottom micro-pit array structure of plunger pump skid shoe of the surface with dimple structure is with certain aspect ratio
The hemispherical dimples structure of (that is: the ratio between the depth of dimple structure and micro- hole maximum gauge).
The surface micro-pit array distribution in the piston shoes bottom have certain distribution area rate (that is: micro- hole gross area and
The ratio between piston shoes bottom dimple structure distribution area).
The surface micro-pit array distribution in the piston shoes bottom, along the connection of the center Wei Keng of piston shoes bottom radial direction with
Piston shoes, which move tangential direction, has certain angle.
A kind of beneficial effect of plunger pump skid shoe of the surface involved in the utility model with dimple structure is:
Related axial plunger pump skid shoe bottom surface has hemispherical micro-pit array, structure is simple, it is easy to process plus
Work is at low cost.
Related axial plunger pump skid shoe bottom surface has hemispherical micro-pit array structure, can store abrasive grain, can have
Effect reduces frictionally damage of the piston shoes in the abrasive grain that swash surfaces slide rotation and generate to piston shoes and swash surfaces.
Related axial plunger pump skid shoe bottom surface with hemispherical micro-pit array structure can lubrication oil, rubbing
Several additional dynamic pressures are formed between wiping is secondary, optimize the greasy property between swash plate and piston shoes.Even if in damping hole plug, high pressure oil
In the case where piston shoes bottom groove can not be reached, hemispherical micro-pit array structure lubrication oil forms several additional dynamic pressures can
Effectively reduce the abrasion between friction pair.
Therefore, a kind of plunger pump skid shoe of the surface involved in the utility model with dimple structure can effectively ensure column
Rub secondary lubrication kilter between plug pump piston shoes and swash plate, improves the secondary friction of friction and greasy property, preferably dispersion is because rubbing
The heat wiped and generated prevents loose boots, extends the service life of piston shoes and swash plate, is conducive to the normal operation of plunger pump.
Detailed description of the invention
Fig. 1 is the plunger pump skid shoe structural schematic diagram that a kind of surface has dimple structure；
Fig. 2 is a kind of bottom surface micro-pit array partial enlarged view of plunger pump skid shoe of surface with dimple structure；
Fig. 3 is the plunger pump skid shoe component assembling schematic diagram that a kind of surface has dimple structure.
In figure: piston shoes 1, plunger spherical groove 11, damping hole 12, bottom groove 13 and bottom micro-pit array structure 14,
Plunger 2, swash plate 3.
Specific embodiment
As shown in Figure 1, a kind of surface has the plunger pump skid shoe 1 of dimple structure, structure is by plunger spherical groove 11, resistance
Buddhist nun hole 12, bottom groove 13 and bottom micro-pit array knot 14 form.
As shown in Fig. 2, the bottom micro-pit array structure 14 of plunger pump skid shoe 1 of the surface with dimple structure is distributed in
The periphery of piston shoes bottom groove 13.
As shown in Fig. 2, the bottom micro-pit array structure 14 of plunger pump skid shoe 1 of the surface with dimple structure is hemisphere
Shape bowl configurations, the ratio between aspect ratio, the i.e. depth of dimple structure and micro- hole maximum gauge are 0.027.
As shown in Fig. 2, the distribution area rate of the surface micro-pit array 14, i.e., the micro- hole of micro- hole gross area and piston shoes bottom is tied
The ratio between structure distribution area is 30%.
As shown in Fig. 2, the surface micro-pit array structure 14 is along the connection of the center Wei Keng of 1 bottom radial direction of piston shoes and slides
The movement tangential direction of boots 1 has certain angle, value 700.
As shown in figure 3, the plunger spherical groove 11 of plunger pump skid shoe 1 of the surface with dimple structure is used for mounting post
The head of plug 2；The bottom of piston shoes 1 is contacted with plunger pump swash plate 3.When plunger pump work, from the high pressure of 2 centre bore of plunger
Oil is flowed into the bottom groove 13 of the piston shoes by the piston shoes damping hole 12, at the bottom of swash plate 3 and the plunger pump skid shoe 1
Hydrostatic support is formed between face.
The hemispherical micro-pit array structure 14, can store abrasive grain, can effectively reduce piston shoes 1 and slide on 3 surface of swash plate
Rotation and the abrasive grain generated are to the frictionally damages of piston shoes 1 and 3 surface of swash plate.
The hemispherical micro-pit array structure 14 can lubrication oil, if between the friction pair of piston shoes 1 and swash plate 3 formed
Dry additional dynamic pressure, increases hydrostatic support area, keeps supporting force more uniform, optimizes the secondary greasy property of friction.Even if hindering
Buddhist nun hole 12 blocks, and in the case that high pressure oil can not reach the bottom groove 11 of piston shoes 1, hemispherical micro-pit array structure 14 is stored
Several additional dynamic pressures that lubricating oil is formed can also effectively reduce the abrasion between friction pair.
Finally, it should be noted that more than the utility model explanation and attached drawing, describe the utility model basic principle,
Main feature and advantage.The only preferable implementation of the utility model, does not limit the embodiments.For fields
Those of ordinary skill for, other different forms of changes or modifications may be made based on the above description, and by
This changes and variations that derived from is still fallen among the protection scope of the utility model.
Claims (4)
1. a kind of surface has the plunger pump skid shoe of dimple structure, structure is by plunger spherical groove, damping hole, bottom groove with
And bottom micro-pit array structure composition, it is characterised in that the plunger spherical female of plunger pump skid shoe of the surface with dimple structure
Slot is used to install the head of plungers pump plunger；Piston shoes bottom is contacted with plunger pump swash plate, from the high pressure oil of plunger centre bore
It is flowed into the bottom groove of the piston shoes by the piston shoes damping hole, is formed between swash plate and the plunger pump skid shoe bottom surface quiet
Hydraulic support.
2. the plunger pump skid shoe that a kind of surface according to claim 1 has dimple structure, it is characterised in that: the piston shoes
Bottom micro-pit array structure is hemispherical dimples, and aspect ratio, i.e. the ratio between hemispherical dimples depth and maximum gauge are 0.027.
3. the plunger pump skid shoe that a kind of surface according to claim 1 has dimple structure, it is characterised in that: the piston shoes
Bottom micro-pit array structure distribution is in piston shoes bottom groove periphery, distribution area rate, i.e., micro- hole gross area and piston shoes bottom
The ratio between portion's dimple structure distribution area is 30%.
4. the plunger pump skid shoe that a kind of surface according to claim 1 has dimple structure, it is characterised in that: along piston shoes bottom
The center the Wei Keng connection of portion's radial direction and the movement tangential direction of piston shoes have certain angle, and value is 70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648289.1U CN208221064U (en) | 2018-04-28 | 2018-04-28 | Has the plunger pump skid shoe of dimple structure in a kind of surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820648289.1U CN208221064U (en) | 2018-04-28 | 2018-04-28 | Has the plunger pump skid shoe of dimple structure in a kind of surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208221064U true CN208221064U (en) | 2018-12-11 |
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ID=64510196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820648289.1U Active CN208221064U (en) | 2018-04-28 | 2018-04-28 | Has the plunger pump skid shoe of dimple structure in a kind of surface |
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| CN (1) | CN208221064U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792707A (en) * | 2019-10-29 | 2020-02-14 | 中车长春轨道客车股份有限公司 | Friction-resistant brake block for high-speed train |
| CN110805633A (en) * | 2019-10-29 | 2020-02-18 | 中车长春轨道客车股份有限公司 | Friction-resistant brake block of high-speed train and preparation method thereof |
| CN110848138A (en) * | 2019-11-11 | 2020-02-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding vane surface structure, sliding vane and compressor |
| CN115263705A (en) * | 2022-07-26 | 2022-11-01 | 燕山大学 | Sliding shoe pair imitating surface microtexture of pangolin scales |
| CN116221050A (en) * | 2023-03-07 | 2023-06-06 | 华侨大学 | Sliding shoe with self-lubricating surface, preparation method thereof and sliding shoe pair |
-
2018
- 2018-04-28 CN CN201820648289.1U patent/CN208221064U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792707A (en) * | 2019-10-29 | 2020-02-14 | 中车长春轨道客车股份有限公司 | Friction-resistant brake block for high-speed train |
| CN110805633A (en) * | 2019-10-29 | 2020-02-18 | 中车长春轨道客车股份有限公司 | Friction-resistant brake block of high-speed train and preparation method thereof |
| CN110848138A (en) * | 2019-11-11 | 2020-02-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding vane surface structure, sliding vane and compressor |
| CN115263705A (en) * | 2022-07-26 | 2022-11-01 | 燕山大学 | Sliding shoe pair imitating surface microtexture of pangolin scales |
| CN115263705B (en) * | 2022-07-26 | 2023-05-16 | 燕山大学 | Sliding shoe pair imitating micro-texture on surface of pangolin scales |
| CN116221050A (en) * | 2023-03-07 | 2023-06-06 | 华侨大学 | Sliding shoe with self-lubricating surface, preparation method thereof and sliding shoe pair |
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