CN202097703U - Special instrument for disassembling valve seat ring of diesel engine cylinder cover - Google Patents
Special instrument for disassembling valve seat ring of diesel engine cylinder cover Download PDFInfo
- Publication number
- CN202097703U CN202097703U CN2011200283445U CN201120028344U CN202097703U CN 202097703 U CN202097703 U CN 202097703U CN 2011200283445 U CN2011200283445 U CN 2011200283445U CN 201120028344 U CN201120028344 U CN 201120028344U CN 202097703 U CN202097703 U CN 202097703U
- Authority
- CN
- China
- Prior art keywords
- valve retainer
- valve seat
- seat ring
- nut
- positioning
- 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 special instrument for disassembling a valve seat ring of a diesel engine cylinder cover. The structure of the special instrument is characterized in that a positioning nut is arranged on a positioning screw rod; a leading-screw lifting screw rod is sheathed with a lifting nut and a bracket; a conical surface expansion positioning disc is arranged below the lifting nut; a positioning shaft is connected with the lower end surface of the positioning disc by threads; three valve seat ring hooks arranged at the intervals of 120 degrees are arranged at the lower end of the lifting nut; each valve seat ring hook is connected with the sleeve wall at the lower end of the lifting nut by a shaft; and the hook can be opened or closed. The lifting mechanism is formed in a guiding and conical surface abutting way by the three valve seat ring hooks that are integrally connected with the screw rod sleeve so that the valve seat ring can be lifted up and pulled out. In the utility model, by utilizing the lever principle of the screw rod, the valve seat ring that is press-mounted on the cylinder cover by interference fit can be disassembled conveniently; furthermore, a bearing at the flywheel end of engines of different types can be pulled out; furthermore, during the disassembling process, the bearing and the valve seat ring can not be damaged; and the special instrument has the advantages of having simple structure and being operated conveniently and flexibly.
Description
Technical field
The utility model belongs to the internal combustion engine component extracting tool, is specifically related to a kind of utensil that is exclusively used in dismounting diesel engine spiracle seat ring.
Background technology
The diesel engine spiracle seat ring is the vitals on the cylinder cap, and valve retainer is fitted on the cylinder cap with interference fit in assembling process, therefore in maintenance or the very difficult dismounting of valve retainer in the cylinder cap air flue test.The employed instrument of dismounting valve retainer all is to press dismounting, result to be easy to cause valve retainer to damage with sleds such as some spanners commonly used, screwdriver, pliers at present, also might damage critical components such as cylinder cap plane and air flue valve guide bushing simultaneously.If can propose a kind of special implement of easy, nondestructive demounting valve retainer, then be that the institute of the industry asks, and the utility model is exactly to propose for solving this difficult problem.
Summary of the invention
The purpose of the utility model provides a kind of rational in infrastructure, head valve seat ring extracting tool easily.
Below in conjunction with the drawings the structural principle of the utility model is described.Diesel engine cylinder cover valve retainer dismounting special implement has: positioning screw, setscrew nut, leading screw lift-bolt cover, hoisting nut, valve retainer grapple and conical surface expansion positioning disk, support etc.Its structure is: positioning screw is precession setscrew nut, leading screw lift-bolt cover, hoisting nut and support successively, and positioning screw, setscrew nut, leading screw lift-bolt cover and hoisting nut are screw connection structure each other.Below hoisting nut, be provided with conical surface expansion positioning disk, the conical surface expansion center of circle, positioning disk lower surface is through the locating shaft that has been threaded, and locating shaft and positioning screw are same axis.The interval, lower end of hoisting nut is provided with three valve retainer grapples for 120 °, and each valve retainer grapple is connected for axle with the sleeve wall of hoisting nut lower end, and the valve retainer grapple can strut or be closed.
The utility model utilizes the design of leading screw lever principle: the dismounting special implement is divided into three parts; First is guide locating device provided; The locating shaft front end of the conical surface being expanded positioning disk lower end (through being threaded) inserts in the valve guide bushing of cylinder cap, plays the guide-localization effect, drives on the awl conical surface expansion positioning disk through the setscrew nut that turns clockwise and moves; Can be with the grapple jack-up of dismounting valve retainer, with the firm valve retainer bottom, hook jail of grapple; Second portion is the valve retainer extracting apparatus, and 3 grapples that are uniformly distributed with and leading screw lift-bolt cover are linked as one; Third part is the part of dismounting valve retainer most critical; At first be the firm frame of the support of circular ring surface on the cylinder cap baseplane, valve retainer is covered fully, because 3 grapples hook jail valve retainer bottom; Setscrew nut fastens the positioning screw positional lock; This moment, hoisting nut was the strong point of power with the support upper surface, clockwise rotated through hoisting nut, and drive leading screw lift-bolt puts to move and utilizes 3 grapples that valve retainer is extracted.The technical scheme that its parts connect is: positioning screw, setscrew nut, leading screw lift-bolt cover and hoisting nut are screw connection structure each other; Below hoisting nut, be provided with conical surface expansion positioning disk; The conical surface expansion center of circle, positioning disk lower surface is through the locating shaft that has been threaded, and locating shaft and positioning screw are same axis.The interval, lower end of hoisting nut is provided with three valve retainer grapples for 120 °, and each valve retainer grapple is connected for axle with the sleeve wall of hoisting nut lower end, and the valve retainer grapple can strut or be closed.
The characteristics and the beneficial effect of the utility model are; The utility model utilizes the leading screw lever principle interference fit for convenience detach to be fitted in the valve retainer on the cylinder cap; And in the process of dismounting, can not cause damage to cylinder cap air flue and valve retainer etc., the diesel engine cylinder cover valve retainer to different model adopts different critical components such as grapple simultaneously.Can also get the bearing that pulls out different model engine flywheel end through changing different size conical surface expansion positioning disk, and in the process of dismounting, can not cause damage bearing and valve retainer, have simple in structure, convenient flexible characteristic.
Description of drawings
Shown in accompanying drawing be the utility model know-why and structure diagram.
The specific embodiment
Do further explanation below in conjunction with accompanying drawing and to the structural principle of the utility model.As shown in the figure; Diesel engine cylinder cover valve retainer dismounting special implement; Its frame for movement is: positioning screw 1 is precession setscrew nut 2, leading screw lift-bolt cover 3, hoisting nut 4 and support 5 successively, and positioning screw 1, setscrew nut 2, leading screw lift-bolt cover 3 and hoisting nut 4 are screw connection structure each other.Below hoisting nut 4, be provided with conical surface expansion positioning disk 7, the conical surface expansion center of circle, positioning disk lower surface is through the locating shaft 8 that has been threaded, and locating shaft and positioning screw are same axis.The interval, lower end of hoisting nut 4 is provided with three valve retainer grapples 6 for 120 °, and each valve retainer grapple 6 is connected for axle with the sleeve wall of hoisting nut 4 lower ends, and the valve retainer grapple can strut or be closed.The hoisting nut 4 that is positioned at support 5 upper surfaces is hexagon, and being positioned at support 5 upper surfaces is tube-in-tube structure with the leading screw lift-bolt cover 3 of lower part.Valve retainer grapple 6 all adopts copper material with locating shaft 8.
Specific embodiment is narrative but not determinate, does not limit the protection domain of the utility model with this.The positioning screw length overall is 180mm; Thread segment is M10 * 1.5mm length 100mm.Support is circular, height 60mm.The valve retainer grapple is a copper material, so can not cause hard defects to destroy to valve retainer and cylinder cap.Valve retainer grapple and locating shaft all are detachable blocks, can change different grapples to different head valve seat rings; Can change the locating shaft of different-diameter to the valve guide bushing size of cylinder cap.The locating shaft that is inserted in the valve guide bushing also is a copper material, so can avoid the head valve conduit is caused damage.The circular planes frame of elder generation's support covers the valve retainer on the cylinder cap during use; Locating shaft with positioning screw partly is inserted in the head valve conduit then; Adjust screw position up and down,, the valve retainer grapple is opened through moving on the conical surface expansion positioning disk; Hook the valve retainer bottom with 3 120 ° of grapples that are uniformly distributed with, use the setscrew nut tie down screw.Constantly slowly screw with spanner (injecting six quadrate part branches of hoisting nut), drive leading screw lift-bolt cover through hoisting nut and rise, leading screw lift-bolt cover drives on the valve retainer grapple and moves, and valve retainer is extracted in cylinder cap.
Claims (3)
1. the diesel engine cylinder cover valve retainer is dismantled special implement; Have positioning screw, setscrew nut, leading screw lift-bolt cover, hoisting nut, support, valve retainer grapple and conical surface expansion positioning disk; It is characterized in that positioning screw (1) precession setscrew nut (2), leading screw lift-bolt cover (3), hoisting nut (4) and support (5) successively; Positioning screw (1), setscrew nut (2), leading screw lift-bolt cover (3) and hoisting nut (4) are screw connection structure each other; Be provided with conical surface expansion positioning disk (7) in the below of hoisting nut (4); The conical surface expansion center of circle, positioning disk lower surface is through the locating shaft that has been threaded (8), and locating shaft and positioning screw are same axis, and the interval, lower end of hoisting nut (4) is provided with three valve retainer grapples (6) for 120 °; Each valve retainer grapple (6) is connected for axle with the sleeve wall of hoisting nut (4) lower end, and the valve retainer grapple can strut or be closed.
2. according to the described diesel engine cylinder cover valve retainer dismounting of claim 1 special implement; It is characterized in that the said hoisting nut (4) that is positioned at support (5) upper surface is hexagon, being positioned at support (5) upper surface is tube-in-tube structure with lower part described leading screw lift-bolt cover (3).
3. according to claim 1 or 2 described diesel engine cylinder cover valve retainer dismounting special implements, it is characterized in that described valve retainer grapple (6) and locating shaft (8) are copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200283445U CN202097703U (en) | 2011-01-27 | 2011-01-27 | Special instrument for disassembling valve seat ring of diesel engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200283445U CN202097703U (en) | 2011-01-27 | 2011-01-27 | Special instrument for disassembling valve seat ring of diesel engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202097703U true CN202097703U (en) | 2012-01-04 |
Family
ID=45383736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200283445U Expired - Fee Related CN202097703U (en) | 2011-01-27 | 2011-01-27 | Special instrument for disassembling valve seat ring of diesel engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202097703U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395037A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Valve seat ring disassembling tool |
| CN104626052A (en) * | 2014-12-31 | 2015-05-20 | 东莞市三基音响科技有限公司 | Woofer voice coil gauge automatic pulling method and device |
| CN104858612A (en) * | 2015-03-29 | 2015-08-26 | 安徽同丰橡塑工业有限公司 | Mounting method of valve retainer |
| CN110900517A (en) * | 2019-11-10 | 2020-03-24 | 北京机械设备研究所 | Flywheel assembling, disassembling and debugging auxiliary device and assembling, disassembling and debugging method |
-
2011
- 2011-01-27 CN CN2011200283445U patent/CN202097703U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395037A (en) * | 2013-07-02 | 2013-11-20 | 广西玉柴机器股份有限公司 | Valve seat ring disassembling tool |
| CN104626052A (en) * | 2014-12-31 | 2015-05-20 | 东莞市三基音响科技有限公司 | Woofer voice coil gauge automatic pulling method and device |
| CN104626052B (en) * | 2014-12-31 | 2016-08-31 | 东莞市三基音响科技有限公司 | A kind of bass horn sound advises method and the equipment thereof of automatically choosing |
| CN104858612A (en) * | 2015-03-29 | 2015-08-26 | 安徽同丰橡塑工业有限公司 | Mounting method of valve retainer |
| CN110900517A (en) * | 2019-11-10 | 2020-03-24 | 北京机械设备研究所 | Flywheel assembling, disassembling and debugging auxiliary device and assembling, disassembling and debugging method |
| CN110900517B (en) * | 2019-11-10 | 2021-08-17 | 北京机械设备研究所 | Flywheel assembling, disassembling and debugging auxiliary device and assembling, disassembling and debugging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140127 |