CN107630811A - A kind of plunger for hydraulic pump - Google Patents
A kind of plunger for hydraulic pump Download PDFInfo
- Publication number
- CN107630811A CN107630811A CN201710783003.0A CN201710783003A CN107630811A CN 107630811 A CN107630811 A CN 107630811A CN 201710783003 A CN201710783003 A CN 201710783003A CN 107630811 A CN107630811 A CN 107630811A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- sealing ring
- described sleeve
- swivel nut
- external diameter
- 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.)
- Pending
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- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of plunger for hydraulic pump, including body and sealing ring, the body is multi-diameter shaft, the body includes Part I, Part II and Part III, also include a sleeve pipe and swivel nut, described sleeve pipe is enclosed on the Part II, the external diameter of described sleeve pipe is identical with the external diameter of the Part I, the sealing ring is arranged on the position between described sleeve pipe and the Part I on the body, the Part III is connected through a screw thread with swivel nut, the swivel nut promotes described sleeve pipe to be moved on the Part II, the sealing ring includes the main body that one section of cross section is cambered surface and the connecting plate for being arranged on main body both ends, the connecting plate inserts the end face of described sleeve pipe and the end face of the Part I respectively.In use, by the position of Adjusting bolt Adjusting screw, can be with the distance between adjusting sleeve pipe and Part I, this distance is nearer, and the main body of sealing ring is protruded more outward, that is, the external diameter of sealing ring is bigger, by this regulative mode, sealing ring can be caused to be in close contact with casing wall, avoid leaking.
Description
Technical field
The present invention relates to a kind of hydraulic pump, more particularly to the plunger used on a kind of hydraulic pump.
Background technology
Traditional plunger includes the body of cylinder, and described body sidewall sets groove, sealing ring is set in groove.Tradition
Sealing ring be all a ring shape rubber ring, this sealing ring can not be adjusted, if after loading onto, finding local sealing not
Good, this also has no idea to adjust, it is therefore necessary to is improved.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of plunger for hydraulic pump, and it can be adjusted
The external diameter size of sealing ring, it is easy to sealing ring to be in close contact with casing wall.
The present invention is achieved through the following technical solutions：A kind of plunger for hydraulic pump, including body and sealing ring,
The body is multi-diameter shaft, and the body includes Part I, Part II and Part III, in addition to a sleeve pipe and spiral shell
Set, described sleeve pipe are enclosed on the Part II, and the external diameter of described sleeve pipe is identical with the external diameter of the Part I, the sealing
Circle is arranged on the position on the body between described sleeve pipe and the Part I, and the Part III passes through with swivel nut
Threaded connection, the swivel nut promote described sleeve pipe to be moved on the Part II, and the sealing ring is including one section of cross section
The main body of cambered surface and the connecting plate for being arranged on main body both ends, the connecting plate insert the end face and described first of described sleeve pipe respectively
Partial end face.In use, by the position of Adjusting bolt Adjusting screw, can with the distance between adjusting sleeve pipe and Part I, this away from
From nearer, the main body of sealing ring is protruded more outward, that is, the external diameter of sealing ring is bigger, can be with by this regulative mode
So that sealing ring is in close contact with casing wall, avoid leaking.
The present invention has the advantages that：In use, by the position of Adjusting bolt Adjusting screw, can be with adjusting sleeve pipe and first
The distance between point, this distance is nearer, and the main body of sealing ring is protruded more outward, that is, the external diameter of sealing ring is bigger, leads to
This regulative mode is crossed, sealing ring can be caused to be in close contact with casing wall, avoid leaking.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 close-up schematic view.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Referring to Fig. 1 and Fig. 2, a kind of plunger for hydraulic pump, including body 1 and sealing ring 2, the body is multi-diameter shaft, institute
Stating body 1 includes Part I 11, Part II 12 and Part III 13, in addition to a sleeve pipe 3 and swivel nut 4, described sleeve pipe 3
It is enclosed on the Part II 12, the external diameter of described sleeve pipe 3 is identical with the external diameter of the Part I 11, and the sealing ring 2 is set
Put the position between described sleeve pipe 3 and the Part I 11 on the body 1, the Part III 13 and swivel nut 4
It is connected through a screw thread, the swivel nut 4 promotes described sleeve pipe 3 to be moved on the Part II 12, and the sealing ring 2 includes one section
Cross section is the main body 21 of cambered surface and the connecting plate 22 for being arranged on the both ends of main body 21, and the connecting plate 22 inserts described sleeve pipe respectively
3 end face and the end face of the Part I 11.
In use, by the position of Adjusting bolt Adjusting screw, can be got over the distance between adjusting sleeve pipe and Part I, this distance
Closely, the main body of sealing ring is protruded more outward, that is, the external diameter of sealing ring is bigger, by this regulative mode, can cause
Sealing ring is in close contact with casing wall, avoids leaking.
Claims (1)
1. a kind of plunger for hydraulic pump, including body and sealing ring, it is characterised in that：The body is multi-diameter shaft, described
Body includes Part I, Part II and Part III, in addition to a sleeve pipe and swivel nut, described sleeve pipe are enclosed on described second
On part, the external diameter of described sleeve pipe is identical with the external diameter of the Part I, and the sealing ring, which is arranged on the body, to be located at
Position between described sleeve pipe and the Part I, the Part III are connected through a screw thread with swivel nut, and the swivel nut promotes
Described sleeve pipe is moved on the Part II, and the sealing ring includes one section of cross section for the main body of cambered surface and is arranged on main body
The connecting plate at both ends, the connecting plate insert the end face of described sleeve pipe and the end face of the Part I respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783003.0A CN107630811A (en) | 2017-09-03 | 2017-09-03 | A kind of plunger for hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710783003.0A CN107630811A (en) | 2017-09-03 | 2017-09-03 | A kind of plunger for hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107630811A true CN107630811A (en) | 2018-01-26 |
Family
ID=61100336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710783003.0A Pending CN107630811A (en) | 2017-09-03 | 2017-09-03 | A kind of plunger for hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107630811A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145433A (en) * | 2019-06-17 | 2019-08-20 | 宁波东液传动科技有限公司 | Piston for hydraulic motor |
| CN110219850A (en) * | 2019-06-17 | 2019-09-10 | 宁波东液传动科技有限公司 | A kind of built-up piston |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4020750A (en) * | 1975-11-03 | 1977-05-03 | Gerhart Engineering And Machine Co. | Piston pump mechanism |
| CN201843992U (en) * | 2010-11-11 | 2011-05-25 | 攀钢集团钢铁钒钛股份有限公司 | Hydraulic cylinder piston |
| CN202158175U (en) * | 2011-08-01 | 2012-03-07 | 成都酷玩网络科技有限公司 | Hydraulic oil cylinder piston |
| CN104481841A (en) * | 2014-11-28 | 2015-04-01 | 四川航空工业川西机器有限责任公司 | Ultrahigh-pressure piston |
| CN204553193U (en) * | 2015-02-11 | 2015-08-12 | 南京松本水处理技术有限公司 | The piston sealing device of reciprocating pump |
| CN204716532U (en) * | 2015-05-06 | 2015-10-21 | 双鸭山市吉昌机械制造有限公司 | Plunger hand mud pumping cylinder |
-
2017
- 2017-09-03 CN CN201710783003.0A patent/CN107630811A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4020750A (en) * | 1975-11-03 | 1977-05-03 | Gerhart Engineering And Machine Co. | Piston pump mechanism |
| CN201843992U (en) * | 2010-11-11 | 2011-05-25 | 攀钢集团钢铁钒钛股份有限公司 | Hydraulic cylinder piston |
| CN202158175U (en) * | 2011-08-01 | 2012-03-07 | 成都酷玩网络科技有限公司 | Hydraulic oil cylinder piston |
| CN104481841A (en) * | 2014-11-28 | 2015-04-01 | 四川航空工业川西机器有限责任公司 | Ultrahigh-pressure piston |
| CN204553193U (en) * | 2015-02-11 | 2015-08-12 | 南京松本水处理技术有限公司 | The piston sealing device of reciprocating pump |
| CN204716532U (en) * | 2015-05-06 | 2015-10-21 | 双鸭山市吉昌机械制造有限公司 | Plunger hand mud pumping cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145433A (en) * | 2019-06-17 | 2019-08-20 | 宁波东液传动科技有限公司 | Piston for hydraulic motor |
| CN110219850A (en) * | 2019-06-17 | 2019-09-10 | 宁波东液传动科技有限公司 | A kind of built-up piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |
|
| WD01 | Invention patent application deemed withdrawn after publication |