CN105364776A - Piston sealing element assembly method and device - Google Patents
Piston sealing element assembly method and device Download PDFInfo
- Publication number
- CN105364776A CN105364776A CN201510955773.XA CN201510955773A CN105364776A CN 105364776 A CN105364776 A CN 105364776A CN 201510955773 A CN201510955773 A CN 201510955773A CN 105364776 A CN105364776 A CN 105364776A
- Authority
- CN
- China
- Prior art keywords
- expander
- seal
- piston
- propeller
- shaping
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0028—Tools for removing or installing seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a piston sealing element assembly method and device. According to the piston sealing element assembly method and device, by reasonably utilizing a propeller, an expander, a shaping sleeve and other tools, sealing element assembly efficiency can be greatly improved, an assembled sealing element is not damaged and well sealed, the service life of the sealing element is prolonged, and the method and device are especially suitable for assembly of sealing elements which have a large cross section and cannot be assembled manually.
Description
Technical field
The present invention relates to a kind of assembly method of piston seal and a kind of device assembling piston seal, belong to the mounting technology field of sealing piston of hydraulic cylinder part.
Background technology
At present in the assembly technology of sealing piston of hydraulic cylinder part, the main technique adopted also mainly based on hand assembled, this kind of method for seal cross section less time, assembling is also than being easier to.But when the cross section of seal is larger, particularly for the seal containing copper powder polytetrafluoroethylene (PTFE), depends merely on hand assembled and be difficult to.
Summary of the invention
Technical problem to be solved by this invention is: the assembly method providing a kind of piston seal easy to assembly.
For solving the problems of the technologies described above the technical solution adopted in the present invention be: the assembly method of piston seal, step is:
A, be equipped with expander in the outer end of piston, expander has the groove suitable with piston outer end, and make expander be fixed in piston outer end, the groove outer wall of expander extends to form conical spigot surface downwards;
B, the seal after thermoplastic is set on the spigot surface of expander, then at the sheathed propeller of the spigot surface of expander, propeller and expander form wedge-like engagement, propeller can be moved along the spigot surface of expander, moved, until seal is pushed in the sealed groove of piston by the spigot surface of propeller promotion seal along expander;
C, dismounting propeller and expander, carry out shaping in the piston press-in shaping being equipped with seal being overlapped, shaping cover has the shaping groove suitable with the piston seal component integration pushed, and after shaping, the assembling of seal and piston completes.
Further: expander, propeller are nylon material, shaping cover adopts steel material.
Further: the mating surface that propeller contacts with seal is plane.
Further: seal is the polytetrafluoroethylene (PTFE) containing copper powder, and thermoplastic method is, putting it into temperature is heat 8 minutes ~ 10 minutes in the hot water of 80 DEG C ~ 90 DEG C.
Further: outside the shaping groove of shaping cover, there is guiding surface.
Further: the training time in step C is 5 minutes ~ 8 minutes.
Correspondingly, another technical problem to be solved by this invention is: the device providing a kind of assembling piston seal easy to assembly.
For the device of assembling piston seal, comprise expander, expander has the groove for the piston that is fixed, the groove outer wall of expander extends to form conical spigot surface downwards, the spigot surface of expander is arranged with dismountable propeller, propeller and expander form wedge-like engagement, and propeller can be moved along the spigot surface of expander.
Further: also comprise shaping cover, shaping cover has the shaping groove suitable with piston seal component integration.
Further: the mating surface that propeller is used for contact seals is plane.
Further: outside the shaping groove of shaping cover, there is guiding surface.
The invention has the beneficial effects as follows: the efficiency of assembling that greatly can improve sealing, the seal not damaged assembled, good seal performance, adds the service life of seal, and the cross section be particularly useful for when seal is comparatively large, when manual mode cannot be adopted to assemble.
Accompanying drawing explanation
Fig. 1 is seal assembling general assembly drawing;
Fig. 2 is seal shaping schematic diagram;
Fig. 3 is expander schematic cross-section;
Fig. 4 is propeller schematic cross-section;
Fig. 5 is shaping cover schematic cross-section;
Parts, position and numbering in figure: 1-propeller, 2-expander, 3-seal, 4-piston, 5-shaping cover.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Fig. 1 ~ Fig. 5, for the assembly method of piston seal, step is:
A, be equipped with expander 2 in the outer end of piston 4, expander 2 has the groove suitable with piston 4 outer end, and make expander 2 be fixed in piston 4 outer end, the groove outer wall of expander 2 extends to form conical spigot surface downwards;
B, the seal 3 after thermoplastic is set on the spigot surface of expander 2, then at the sheathed propeller 1 of the spigot surface of expander 2, propeller 1 and expander 2 form wedge-like engagement, propeller 1 can be moved along the spigot surface of expander 2, promote seal 3 by propeller 1 to move, until seal 3 is pushed in the sealed groove of piston 4 along the spigot surface of expander 2;
C, dismounting propeller 1 and expander 2, be pressed into the piston 4 being equipped with seal 3 in shaping cover 5 and carry out shaping, and shaping cover 5 has the shaping groove suitable with the piston seal component integration pushed, and after shaping, seal 3 completes with the assembling of piston 4.
Particularly, expander 2, propeller 1 are all preferably nylon material, and shaping cover 5 preferably adopts steel material.
Preferably, the mating surface that propeller 1 contacts with seal 3 is plane, the convenient seal 3 of promotion evenly.
Preferably, seal 3 is the polytetrafluoroethylene (PTFE) containing copper powder, and thermoplastic method is, putting it into temperature is heat 8 minutes ~ 10 minutes in the hot water of 80 DEG C ~ 90 DEG C.
Preferably, outside the shaping groove of shaping cover 5, there is guiding surface, facilitate during shaping and load piston seal assembly.
Preferably, the training time in step C is 5 minutes ~ 8 minutes.
As shown in Fig. 1 ~ Fig. 5, for the device of assembling piston seal, comprise expander 2, expander 2 has the groove for the piston 4 that is fixed, the groove outer wall of expander 2 extends to form conical spigot surface downwards, the spigot surface of expander 2 is arranged with dismountable propeller 1, and propeller 1 and expander 2 form wedge-like engagement, and propeller 1 can be moved along the spigot surface of expander 2.Adopt this device, can easily seal 3 be pushed in the sealed groove of piston 4.For making sealing property better, usually also needing to carry out shaping to seal 3, can adopt manual shaping in various manners, preferably adopt shaping cover 5, shaping cover 5 has the shaping groove suitable with piston seal component integration.Outside the shaping groove of shaping cover 5, preferably guiding surface is set, facilitates during shaping and load piston seal assembly.In addition, propeller 1 is preferably set to plane for the mating surface of contact seals, the convenient seal 3 of promotion evenly.
Claims (10)
1. the assembly method of piston seal, is characterized in that, step is:
A, be equipped with expander (2) in the outer end of piston (4), expander (2) has the groove suitable with piston (4) outer end, make expander (2) be fixed in piston (4) outer end, the groove outer wall of expander (2) extends to form conical spigot surface downwards;
B, the seal (3) after thermoplastic is set on the spigot surface of expander (2), then at the sheathed propeller of spigot surface (1) of expander (2), propeller (1) and expander (2) form wedge-like engagement, propeller (1) can be moved along the spigot surface of expander (2), moved, until seal (3) is pushed in the sealed groove of piston (4) by the spigot surface of propeller (1) promotion seal (3) along expander (2);
C, dismounting propeller (1) and expander (2), the piston (4) being equipped with seal (3) is pressed in shaping cover (5) and carries out shaping, shaping cover (5) has the shaping groove suitable with the piston seal component integration pushed, after shaping, seal (3) completes with the assembling of piston (4).
2. the assembly method of piston seal as claimed in claim 1, is characterized in that: expander (2), propeller (1) are nylon material, and shaping cover (5) adopts steel material.
3. the assembly method of piston seal as claimed in claim 1, is characterized in that: the mating surface that propeller (1) contacts with seal (3) is plane.
4. the assembly method of piston seal as claimed in claim 1, is characterized in that: seal (3) is the polytetrafluoroethylene (PTFE) containing copper powder, and thermoplastic method is, putting it into temperature is heat 8 minutes ~ 10 minutes in the hot water of 80 DEG C ~ 90 DEG C.
5. the assembly method of piston seal as claimed in claim 1, is characterized in that: have guiding surface outside the shaping groove of shaping cover (5).
6. the assembly method of piston seal as claimed in claim 1, is characterized in that: the training time in step C is 5 minutes ~ 8 minutes.
7. assemble the device of piston seal, it is characterized in that: comprise expander (2), expander (2) has the groove for the piston that is fixed (4), the groove outer wall of expander (2) extends to form conical spigot surface downwards, the spigot surface of expander (2) is arranged with dismountable propeller (1), propeller (1) and expander (2) form wedge-like engagement, and propeller (1) can be moved along the spigot surface of expander (2).
8. the device of assembling piston seal as claimed in claim 7, it is characterized in that: also comprise shaping cover (5), shaping cover (5) has the shaping groove suitable with piston seal component integration.
9. assemble the device of piston seal as claimed in claim 7 or 8, it is characterized in that: propeller (1) is plane for the mating surface of contact seals (3).
10. the device of assembling piston seal as claimed in claim 8, is characterized in that: have guiding surface outside the shaping groove of shaping cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955773.XA CN105364776A (en) | 2015-12-18 | 2015-12-18 | Piston sealing element assembly method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510955773.XA CN105364776A (en) | 2015-12-18 | 2015-12-18 | Piston sealing element assembly method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105364776A true CN105364776A (en) | 2016-03-02 |
Family
ID=55367658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510955773.XA Pending CN105364776A (en) | 2015-12-18 | 2015-12-18 | Piston sealing element assembly method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105364776A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272227A (en) * | 2016-09-22 | 2017-01-04 | 淮南国力液压装备有限公司 | A kind of piston rod packing circle assembling, trimmer |
| CN111215875A (en) * | 2020-03-27 | 2020-06-02 | 宁波均普智能制造股份有限公司 | Piston assembly mechanism |
| CN113561122A (en) * | 2021-07-08 | 2021-10-29 | 西安航空制动科技有限公司 | Tool and method for mounting sealing ring on shaft rod |
| WO2022038911A1 (en) * | 2020-08-21 | 2022-02-24 | トヨタ自動車株式会社 | Ring installation method and manufacturing method |
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| CN2863370Y (en) * | 2005-12-23 | 2007-01-31 | 上海外高桥造船有限公司 | Sealing element mounting tools |
| CN202137727U (en) * | 2011-06-23 | 2012-02-08 | 宁波宝新不锈钢有限公司 | Installation device for sealing piston of hydraulic cylinder |
| CN202241119U (en) * | 2011-10-20 | 2012-05-30 | 中联重科股份有限公司 | Assembly tool of sealing element |
| CN202572270U (en) * | 2012-03-28 | 2012-12-05 | 朱振霖 | Oil seal installer |
| CN103639980A (en) * | 2013-12-19 | 2014-03-19 | 方盛车桥（柳州）有限公司 | Installation tool and installation method for retaining ring for shaft |
| CN203752074U (en) * | 2014-03-27 | 2014-08-06 | 湖南特达液压有限公司 | Piston sealing element mounting tool |
| CN205271888U (en) * | 2015-12-18 | 2016-06-01 | 四川优机实业股份有限公司 | Device of assembly piston packaging spare |
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2015
- 2015-12-18 CN CN201510955773.XA patent/CN105364776A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2863370Y (en) * | 2005-12-23 | 2007-01-31 | 上海外高桥造船有限公司 | Sealing element mounting tools |
| CN202137727U (en) * | 2011-06-23 | 2012-02-08 | 宁波宝新不锈钢有限公司 | Installation device for sealing piston of hydraulic cylinder |
| CN202241119U (en) * | 2011-10-20 | 2012-05-30 | 中联重科股份有限公司 | Assembly tool of sealing element |
| CN202572270U (en) * | 2012-03-28 | 2012-12-05 | 朱振霖 | Oil seal installer |
| CN103639980A (en) * | 2013-12-19 | 2014-03-19 | 方盛车桥（柳州）有限公司 | Installation tool and installation method for retaining ring for shaft |
| CN203752074U (en) * | 2014-03-27 | 2014-08-06 | 湖南特达液压有限公司 | Piston sealing element mounting tool |
| CN205271888U (en) * | 2015-12-18 | 2016-06-01 | 四川优机实业股份有限公司 | Device of assembly piston packaging spare |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106272227A (en) * | 2016-09-22 | 2017-01-04 | 淮南国力液压装备有限公司 | A kind of piston rod packing circle assembling, trimmer |
| CN111215875A (en) * | 2020-03-27 | 2020-06-02 | 宁波均普智能制造股份有限公司 | Piston assembly mechanism |
| CN111215875B (en) * | 2020-03-27 | 2020-11-06 | 宁波均普智能制造股份有限公司 | Piston assembly mechanism |
| WO2022038911A1 (en) * | 2020-08-21 | 2022-02-24 | トヨタ自動車株式会社 | Ring installation method and manufacturing method |
| US20230311253A1 (en) * | 2020-08-21 | 2023-10-05 | Toyota Jidosha Kabushiki Kaisha | Ring assembly method and manufacturing method |
| JP7435358B2 (en) | 2020-08-21 | 2024-02-21 | トヨタ自動車株式会社 | Ring assembly method and manufacturing method |
| US11931837B2 (en) * | 2020-08-21 | 2024-03-19 | Toyota Jidosha Kabushiki Kaisha | Ring assembly method and manufacturing method |
| CN113561122A (en) * | 2021-07-08 | 2021-10-29 | 西安航空制动科技有限公司 | Tool and method for mounting sealing ring on shaft rod |
| CN113561122B (en) * | 2021-07-08 | 2023-03-10 | 西安航空制动科技有限公司 | Tool for mounting sealing ring on shaft lever and mounting method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |