CN205533172U - Plunger piston slippery boots assembly - Google Patents
Plunger piston slippery boots assembly Download PDFInfo
- Publication number
- CN205533172U CN205533172U CN201620343668.0U CN201620343668U CN205533172U CN 205533172 U CN205533172 U CN 205533172U CN 201620343668 U CN201620343668 U CN 201620343668U CN 205533172 U CN205533172 U CN 205533172U
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- CN
- China
- Prior art keywords
- plunger
- piston shoes
- bulb
- piston
- ball recess
- 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 discloses a plunger piston slippery boots assembly, including piston shoes body and plunger body, the one end of plunger body has the bulb, the lower part of piston shoes body has the ball grooves corresponding with the bulb, is equipped with several notches on ball grooves's lateral wall, in the bulb of plunger body stretches into ball grooves, be equipped with a lock sleeve at ball grooves's outside cover, can be with the bulb locking of plunger body in ball grooves through this lock sleeve. The utility model discloses convenient assembling can effectively improve the stability of piston shoes, reducing wear to avoid appearing the piston shoes and the condition that the plunger easily breaks away from, just can effectively prolong the life of piston shoes.
Description
Technical field
This utility model relates to hydraulic planger pump parts technical field, particularly relates to a kind of plunger piston slippery boots assembly.
Background technology
Plunger and piston shoes are the critical components in plunger hydraulic pump, and plunger head is spherical surface, and spherical surface coordinates with piston shoes Internal Spherical Surface, between the two can the most slidably, and they are a pair inseparable parts.Plunger and piston shoes combine with the cylinder body of rotation and cylinder body rotary motion are converted into plunger straight reciprocating motion in cylinder body, and its performance directly affects the performances such as the speed of hydraulic pump, flow, pressure, life-span.
Traditional piston shoes one end is provided with the spherical closing in matched with plunger ball, and the other end is provided with the plane contacted with swash plate, and the middle part of plane is provided with groove and makees oil storage and balance pressure, and the middle part of groove is provided with damping hole, and damping hole is connected with spherical closing in.Meanwhile, piston shoes use the bigger plastic material of elongation percentage to make, by frock by piston shoes crimp and after rolling with the spherical outside surface laminating of bulb, this technical process is referred to as bag ball.During bag ball, there is piston shoes deformation uneven, make piston shoes Internal Spherical Surface be difficult to fully laminating with the spherical outside surface of bulb, cause contact position higher than pressure, concentrated wear aggravates.Piston shoes are during push-and-pull bulb simultaneously, and shock loading and alternate load suffered by sphere are the biggest.Due to elasticity and the plastic deformation of material, when institute's stress is bigger, can open at the sphere closing in of piston shoes, time serious, piston shoes completely disengage from plunger, and the most so-called " de-boots phenomenon ", ultimately resulting in plunger displacement pump cannot normally work.
In existing plunger pump structure, piston shoes slide in swash surfaces, and piston shoes end face is the position being easiest to abrasion.Once abrasion will affect work efficiency and the operation of plunger displacement pump, therefore after the end wear of piston shoes, needs to be replaced immediately, owing to existing plunger piston slippery boots is overall structure, needs to be replaced whole plunger piston slippery boots during replacing.So cost is high, and wastes time and energy.
Utility model content
For deficiencies of the prior art, the purpose of this utility model is how to solve existing piston shoes assembling trouble, safeguard inconvenience, the problem that piston shoes and plunger easily depart from, it is provided that a kind of plunger piston slippery boots assembly, easy to assembly, the stability of piston shoes can be effectively improved, reduce abrasion, and avoid the occurrence of the situation that piston shoes easily depart from plunger, and can effectively extend the service life of piston shoes.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is such that a kind of plunger piston slippery boots assembly, including piston shoes body and plunger body, one end of described plunger body has bulb, the bottom of described piston shoes body has the ball recess corresponding with bulb, it is characterized in that: be provided with several notches on the sidewall of ball recess, described notch runs through the lower end of piston shoes body；The bulb of described plunger body stretches in ball recess, and the outer sheath at ball recess is provided with a lock sleeve, by this lock sleeve can by the ball head lock of plunger body in ball recess, and bulb can in ball recess freely rotatable and swing.
Further, the upper surface of described piston shoes body is provided with an oil groove, and described oil groove is connected with ball recess by oilhole.
Further, described notch is at least 4, and within one week, is uniformly distributed around piston shoes body.
Further, described piston shoes body is made up of Cu alloy material；Described lock sleeve is made up of steel alloy.
Compared with prior art, this utility model has the advantage that
1, simple in construction, easily manufactured, assembling easily, change quick, service life is long.
2, have several notches on piston shoes, there is the ability of outside elastic changeable diameter, reliable operation after assembly and connection, can the most anti-anti-avulsion boots phenomenon.
3, fast changeable, reduction cost, shortening replacing construction after piston shoes abrasion.
4, piston shoes no longer use bag ball technique, can improve passing rate of processing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of piston shoes body.
Fig. 3 is the structural representation of lock sleeve.
In figure: 1 piston shoes body, 2 plunger body, 3 bulbs, 4 notches, 5 lock sleeves, 6 oil grooves, 7 oilholes.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: see Fig. 1, Fig. 2 and Fig. 3, a kind of plunger piston slippery boots assembly, including piston shoes body 1 and plunger body 2, one end of described plunger body 2 has bulb 3, the bottom of described piston shoes body 1 has the ball recess corresponding with bulb 3, the upper surface of described piston shoes body 1 is provided with an oil groove 6, described oil groove 6 is connected with ball recess by oilhole 7, the hydraulic oil being transmitted through by plunger can be accepted by oil groove 6 and oilhole 7, static pressure is formed with swash plate contact surface in piston shoes upper surface, reduce the frictional force of piston shoes end face and swash surfaces, and provide friction surface lubrication required fluid.
Being provided with several notches 4 on the sidewall of ball recess, described notch 4 runs through the lower end of piston shoes body 1；When being embodied as, described notch 4 is at least 4, and within 1 one weeks, is uniformly distributed around piston shoes body, be more convenient for dismounting and maintenance.The bulb 3 of described plunger body 2 stretches in ball recess, after the ball recess sidewall opening on piston shoes body 1, has the ability of outside elastic changeable diameter, is similar to the effect of collet such that it is able to loaded by plunger head spherical outer surface easily.Outer sheath at ball recess is provided with a lock sleeve 5, and lock sleeve 5 is adjacent to piston shoes；To guarantee that the ball recess of piston shoes body 1 the most outwards produces elastic deformation front and back during push-and-pull plunger；The bulb 3 of plunger body 2 can be locked in ball recess by this lock sleeve 5, make plunger head spherical outside surface and ball recess Internal Spherical Surface matched in clearance, thus bulb 3 can freely rotatable and swing in ball recess.
In manufacturing process, described piston shoes body 1 is made up of Cu alloy material；Make plunger piston slippery boots can bear bigger operating pressure.Described lock sleeve 5 is made up of steel alloy；Guarantee that ball recess operationally will not expand outwardly, to avoid de-boots situation to occur.
Finally it should be noted that, above example is only in order to illustrate the technical solution of the utility model rather than restriction technologies scheme, it will be understood by those within the art that, the technical solution of the utility model is modified or equivalent by those, without deviating from objective and the scope of the technical program, all should contain in the middle of right of the present utility model.
Claims (4)
1. a plunger piston slippery boots assembly, including piston shoes body and plunger body, one end of described plunger body has bulb, the bottom of described piston shoes body has the ball recess corresponding with bulb, it is characterized in that: be provided with several notches on the sidewall of ball recess, described notch runs through the lower end of piston shoes body；The bulb of described plunger body stretches in ball recess, and the outer sheath at ball recess is provided with a lock sleeve, by this lock sleeve can by the ball head lock of plunger body in ball recess, and bulb can in ball recess freely rotatable and swing.
A kind of plunger piston slippery boots assembly the most according to claim 1, it is characterised in that: the upper surface of described piston shoes body is provided with an oil groove, and described oil groove is connected with ball recess by oilhole.
A kind of plunger piston slippery boots assembly the most according to claim 1, it is characterised in that: described notch is at least 4, and within one week, is uniformly distributed around piston shoes body.
A kind of plunger piston slippery boots assembly the most according to claim 1, it is characterised in that: described piston shoes body is made up of Cu alloy material；Described lock sleeve is made up of steel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343668.0U CN205533172U (en) | 2016-04-22 | 2016-04-22 | Plunger piston slippery boots assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343668.0U CN205533172U (en) | 2016-04-22 | 2016-04-22 | Plunger piston slippery boots assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533172U true CN205533172U (en) | 2016-08-31 |
Family
ID=56796057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620343668.0U Expired - Fee Related CN205533172U (en) | 2016-04-22 | 2016-04-22 | Plunger piston slippery boots assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533172U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052139A (en) * | 2018-09-05 | 2018-12-21 | 益阳瀚鑫机械制造有限公司 | A kind of retaining mechanism |
| CN109441797A (en) * | 2018-11-27 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | A kind of axial plunger pump or motor piston shoes |
| CN109958671A (en) * | 2019-04-26 | 2019-07-02 | 上海振华重工(集团)股份有限公司 | A kind of cushion cylinder to land on cone for trestle |
| CN110925158A (en) * | 2019-11-14 | 2020-03-27 | 中国航发西安动力控制科技有限公司 | Sliding shoe for axial plunger pump |
-
2016
- 2016-04-22 CN CN201620343668.0U patent/CN205533172U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052139A (en) * | 2018-09-05 | 2018-12-21 | 益阳瀚鑫机械制造有限公司 | A kind of retaining mechanism |
| CN109441797A (en) * | 2018-11-27 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | A kind of axial plunger pump or motor piston shoes |
| CN109958671A (en) * | 2019-04-26 | 2019-07-02 | 上海振华重工(集团)股份有限公司 | A kind of cushion cylinder to land on cone for trestle |
| CN110925158A (en) * | 2019-11-14 | 2020-03-27 | 中国航发西安动力控制科技有限公司 | Sliding shoe for axial plunger pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200422 |