CN203804898U - Tool for disassembling valve seat of plunger pump - Google Patents
Tool for disassembling valve seat of plunger pump Download PDFInfo
- Publication number
- CN203804898U CN203804898U CN201420240534.7U CN201420240534U CN203804898U CN 203804898 U CN203804898 U CN 203804898U CN 201420240534 U CN201420240534 U CN 201420240534U CN 203804898 U CN203804898 U CN 203804898U
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- CN
- China
- Prior art keywords
- nut
- rod section
- valve seat
- threaded rod
- locking end
- 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 tool for disassembling a valve seat of a plunger pump in order to solve the problem that the valve seat of an existing plunger pump is not easy to disassemble. The tool is characterized by comprising a pull rod, a reducing-type jaw, a jaw seat, an elastic snap ring, a first gasket, a first nut, a second gasket, a second nut and a fixing support body, and the pull rod is formed by integral connection of an inverted-cone shaped locking end, a first thread rod section, a second thread rod section and a square straight-rod section; the inner cavity of the reducing-type jaw is inverted-cone shaped and is provided with at least three separated latches, the elastic snap ring is arranged in an annular clamping groove formed in the bottom of the reducing-type jaw, and the inner cavity of the reducing-type jaw is matched with the cone shape of the locking end in shape; the fixing support body is a hollow cylindrical body provided with a threaded hole for the second thread rod section to go through in the center. The tool is especially designed for disassembling the valve seats of the plunger pump, and the valve seats can be directly lifted to the outer end of a hydraulic cylinder of the plunger pump through rotation, so that the tool is convenient to operate and capable of improving operation efficiency.
Description
Technical field
The utility model relates to a kind of apparatus being applied in plunger displacement pump valve seat dismounting field.
Background technology
The pump that Daqing oil field polymer injection adopts is plunger reciprocating pump, and in plunger displacement pump, valve seat often weares and teares and needs to change in running, and annual each valve is on average changed 3 times, and therefore the replacing number of times of whole oil field valve seat is very huge.Due to the inner surface of valve seat with outer surface precision requires and surface roughness requirement is all very high, and in the time that valve seat packs fluid power cylinder body into, between valve seat and fluid power cylinder body, also has sealing ring sealing, therefore cause dismantling valve seat and some fluid power cylinder body inner bodies are very difficult, sometimes even need the cooperation of electric welding machine by welded together to valve seat and a simple stock, by pull-out rod member, valve seat is taken out.Cause thus keeping in repair that pump is time-consuming, effort, operator's labour intensity be large, efficiency is low.
Summary of the invention
In order to solve the technical problem of mentioning in background technology, the utility model provides a kind of instrument of dismantling plunger displacement pump valve seat, the tool construction of this kind of dismounting plunger displacement pump valve seat is simple, aim at dismounting plunger displacement pump valve seat and design, utilize cone pull bar to coordinate the claw of outer radius variable, the outer end that valve seat directly can be risen to plunger displacement pump fluid power cylinder body by rotation, convenient operation, can improve operating efficiency.
The technical solution of the utility model is: the instrument of this kind of dismounting plunger displacement pump valve seat, comprise pull bar, and described pull bar is carried out forming after integrated connection by locking end, the first threaded rod section, the second threaded rod section and the square straight bar section of inversed taper platform shape successively; Described instrument also comprises a diameter reduced claw, master jaw, snap ring, the first packing ring, the first nut, the second packing ring, the second nut and fixed support body.Wherein, the inner chamber of diameter reduced claw is inversed taper platform shape, there are at least three separated latches, snap ring is stuck in the annular slot of diameter reduced claw bottom, the frustum shape of the inner chamber of diameter reduced claw and locking end matches, diameter reduced catch jacket, in locking end, is pressed together on outside locking end by master jaw; The first packing ring is between the first nut and master jaw, and the first nut matches with the screw thread in the first threaded rod section; Fixed support body is hollow cylinder, and central authorities have the screwed hole passing for the second threaded rod section; The second packing ring is between the second nut and fixed support body, and the second nut matches with the screw thread in the second threaded rod section; The horizontal cross sectional geometry of square straight bar section is square.
The utlity model has following beneficial effect: the diameter reduced claw of this kind of instrument is unclamped after the first nut, snap in plunger displacement pump fluid power cylinder body, and by the upper plane of the step plane of master jaw and valve seat by flat, then use the wrench of long handle elbow by the first nut screwing clamping, claw will snap in valve seat endoporus gradually, afterwards, fixing support rack is fixed on plunger displacement pump fluid power cylinder body, then rotating rod, until rise to plunger displacement pump fluid power cylinder body outer end by the valve seat of bottom.This instrument has solved the valve seat dismounting problem in plunger reciprocating pump maintenance process, especially runs into fitting depth larger, and the situation that staff cannot operate, for the maintenance of plunger reciprocating pump is provided convenience.The tool construction of this kind of dismounting plunger displacement pump valve seat is simple, aim at dismounting plunger displacement pump valve seat and design, utilizing the claw of cone pull bar cooperation outer radius variable, valve seat directly can be risen to the outer end of plunger displacement pump fluid power cylinder body by rotation, convenient operation, can improve operating efficiency.In addition, this instrument is removable step ports valve seat not only, also detachable blind hole and smooth hole valve seat, and applied range, easy to use.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model.
The structural representation that Fig. 2 is the utility model when dismantling valve seat.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the instrument of this kind of dismounting plunger displacement pump valve seat, comprises pull bar, and described pull bar is carried out forming after integrated connection by locking end 13, the first threaded rod section 14, the second threaded rod section 6 and the square straight bar section 17 of inversed taper platform shape successively.Described instrument also comprises a diameter reduced claw 1, master jaw 3, snap ring 2, the first packing ring 4, the first nut 5, the second packing ring 8, the second nut 9 and fixed support body 7.
Wherein, the inner chamber of diameter reduced claw 1 is inversed taper platform shape, there are at least three separated latches, snap ring 2 is stuck in the annular slot of diameter reduced claw 1 bottom, the frustum shape of the inner chamber of diameter reduced claw 1 and locking end 13 matches, diameter reduced claw 1 is enclosed within locking end 13, is pressed together on outside locking end 13 by master jaw 3; The first packing ring 4 is between the first nut 5 and master jaw 3, and the first nut 5 matches with the screw thread in the first threaded rod section 14.In the time that the first nut is screwed down along the first threaded rod section, can promote master jaw and move down, then pressing diameter reduced claw descending along the locking end on pull bar, be clamped in valve seat.
Fixed support body 7 is hollow cylinder, and central authorities have the screwed hole 16 passing for the second threaded rod section 6; The second packing ring 8 is between the second nut 9 and fixed support body 7, and the second nut 9 matches with the screw thread in the second threaded rod section 6; The horizontal cross sectional geometry of square straight bar section 17 is square.
Fig. 2 is the structural representation when dismantling valve seat by this instrument.In figure, provide the position mark of plunger packing box 10, outlet valve assembly 11, valve seat to be removed 12 and inlet valve chamber 15.
When use, first the parts of easily removing in plunger displacement pump fluid power cylinder body import and export valve chamber are removed; Each assembling parts of the Part I of instrument is arrived together, unclamp the first nut, at this moment tightening up under elastic reaction at snap ring, diameter reduced claw inwardly shrinks, reduced, at this moment, the diameter reduced claw of the instrument of adjusting is packed in the valve seat to be removed 12 in plunger displacement pump fluid power cylinder body, and by the upper plane of the step surface of master jaw and valve seat by flat, then use the wrench of long handle elbow by the first nut screwing clamping, at this moment will on pull bar, carry, under the effect of pull bar upper cone, claw moves outward and is closely connected with valve seat endoporus.Afterwards, fixing support rack is fixed on plunger displacement pump fluid power cylinder body, then rotating rod, and constantly screw, until the valve seat of bottom is risen to plunger displacement pump fluid power cylinder body outer end.
Claims (1)
1. dismantle the instrument of plunger displacement pump valve seat for one kind, comprise pull bar, it is characterized in that: described pull bar is carried out forming after integrated connection by locking end (13), the first threaded rod section (14), the second threaded rod section (6) and the square straight bar section (17) of inversed taper platform shape successively; Described instrument also comprises a diameter reduced claw (1), master jaw (3), snap ring (2), the first packing ring (4), the first nut (5), the second packing ring (8), the second nut (9) and fixed support body (7);
Wherein, the inner chamber of diameter reduced claw (1) is inversed taper platform shape, there are at least three separated latches, snap ring (2) is stuck in the annular slot of diameter reduced claw (1) bottom, the frustum shape of the inner chamber of diameter reduced claw (1) and locking end (13) matches, it is upper that diameter reduced claw (1) is enclosed within locking end (13), is pressed together on outside locking end (13) by master jaw (3); The first packing ring (4) is positioned between the first nut (5) and master jaw (3), and the first nut (5) matches with the screw thread in the first threaded rod section (14);
Fixed support body (7) is hollow cylinder, and central authorities have the screwed hole (16) passing for the second threaded rod section (6); The second packing ring (8) is positioned between the second nut (9) and fixed support body (7), and the second nut (9) matches with the screw thread in the second threaded rod section (6);
The horizontal cross sectional geometry of square straight bar section (17) is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240534.7U CN203804898U (en) | 2014-05-12 | 2014-05-12 | Tool for disassembling valve seat of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240534.7U CN203804898U (en) | 2014-05-12 | 2014-05-12 | Tool for disassembling valve seat of plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203804898U true CN203804898U (en) | 2014-09-03 |
Family
ID=51443706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240534.7U Expired - Fee Related CN203804898U (en) | 2014-05-12 | 2014-05-12 | Tool for disassembling valve seat of plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203804898U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308809A (en) * | 2014-10-21 | 2015-01-28 | 苏州道森钻采设备股份有限公司 | Tooling for assembling valve seat of valve |
| KR101727436B1 (en) | 2016-10-13 | 2017-04-14 | 변용선 | Assembly tool to Plunger of internal combustion engine Injector |
| CN111702722A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Nuclear-grade plunger pump check valve seat dismounting device and dismounting method |
-
2014
- 2014-05-12 CN CN201420240534.7U patent/CN203804898U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308809A (en) * | 2014-10-21 | 2015-01-28 | 苏州道森钻采设备股份有限公司 | Tooling for assembling valve seat of valve |
| KR101727436B1 (en) | 2016-10-13 | 2017-04-14 | 변용선 | Assembly tool to Plunger of internal combustion engine Injector |
| CN111702722A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Nuclear-grade plunger pump check valve seat dismounting device and dismounting method |
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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: 20140903 Termination date: 20180512 |