CN202151840U - Pulling device for oil injector bushing of cylinder cover - Google Patents
Pulling device for oil injector bushing of cylinder cover Download PDFInfo
- Publication number
- CN202151840U CN202151840U CN2011202295521U CN201120229552U CN202151840U CN 202151840 U CN202151840 U CN 202151840U CN 2011202295521 U CN2011202295521 U CN 2011202295521U CN 201120229552 U CN201120229552 U CN 201120229552U CN 202151840 U CN202151840 U CN 202151840U
- Authority
- CN
- China
- Prior art keywords
- bushing
- screw rod
- oil injector
- spacer
- pulling device
- 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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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a pulling device for an oil injector bushing of a cylinder cover, which is characterized in that the pulling device mainly comprises a screw rod, wherein one end of the screw rod is provided with threads, the other end of the screw rod is of a conic structure, an expansion bushing is sheathed on the upper part of the conic end of the screw rod, a spacer bushing is sheathed on the screw rod at the upper end of the expansion bushing, the spacer bushing and the screw rod can freely slide relative to each other, a locking nut is arranged on the screw rod above the spacer bushing, and two locking nuts are arranged at the thread end of the screw rod. The utility model adopts expansion principles, namely, the locking nuts are adjusted to tightly press the expansion bushing against the spacer bushing, the outer surface of the expansion bushing is tightly pressed against the inner wall of the oil injector bushing, a certain friction is produced between the outer surface and the inner wall, the pulling device is pulled out, the oil injector bushing is pulled out with the pulling device by means of the friction between the expansion bushing and the oil injector bushing, the locking nuts are loosened after the oil injector bushing is pulled out, and disassembly work is finished after the oil injector bushing is disassembled. Therefore, the structure has the advantages of simple structure and convenience for use. The maintenance technology of the O ring of the cylinder cover is simplified, maintenance operation time is shortened, and the work intensity of operating personnel is reduced.
Description
Technical field
The utility model belongs to engine maintenance frock field, particularly a kind of extracting apparatus that is used to dismantle engine cylinder cover fuel injector cover.
Background technology
When the Diesel engine cylinder cap designed, to the fuel oil direct injection technology, assembling fuel injector installation sleeve was very conventional design in the cylinder cap assembly.Generally, utilize O type circle to isolate cooling fluid and diesel oil in the cylinder cap, detailed structure is seen figure one.In the engine use, if O type circle lost efficacy, will cause cooling fluid to be mixed with diesel oil, failure effect is very serious.The O type circle that need more renew during breakdown maintenance at first screws off the fuel injector external threading, if under the situation of not pulling down engine cylinder cover, is to be difficult to the fuel injector cover is taken out, if but the dismounting cylinder cap, maintenance load will increase greatly.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of simple in structure, make easily, shorten the maintenance activity time, simplify cylinder cap O type circle maintenance process, cylinder cap fuel injector cover extracting apparatus easy to use.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of cylinder cap fuel injector cover extracting apparatus; It is characterized in that: this extracting apparatus comprises that mainly an end is that screw thread one end is the screw rod of pyramidal structure; The tapering point top of said screw rod is set with ringfeder, is set with spacer on the upper end screw rod of said ringfeder, can be free to slide between spacer and the screw rod; Be fitted with locking nut on the top screw rod of said spacer, said screw flight end is fitted with two locking nuts.
The utility model can also adopt following technical measures:
The excircle of said ringfeder is shaped on external screw thread, and the place is set with snap at external screw thread.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, adopt the type principle that rises, promptly pass through the adjusting lock nut; Make spacer compress ringfeder, the outer surface of ringfeder and fuel injector cover inwall compress, and make it have certain frictional force between the two; Outwards extract the utility model after compressing; Rely on the frictional force of ringfeder and fuel injector inner room to take the fuel injector cover out of, unclamp locking nut after extracting, unload the fuel injector cover and can accomplish dismantlement work.Therefore said structure has simple in structurely, easy to use, simplifies cylinder cap O type circle maintenance process, has shortened the maintenance activity time, has also reduced labor intensity of operating personnel simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the utility model user mode figure.
Among the figure: 1, screw rod; 2, ringfeder; 3, spacer; 4, locking nut; 5, locking nut; 6, locking nut; 7, fuel injector cover; 8, snap.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1 and Fig. 2, a kind of cylinder cap fuel injector cover extracting apparatus, this extracting apparatus comprises that mainly an end is that screw thread one end is the screw rod 1 of pyramidal structure; The tapering point top of said screw rod 1 is set with ringfeder 2; Be set with spacer 3 on the upper end screw rod 1 of said ringfeder 2, can be free to slide between spacer 3 and the screw rod 1, be fitted with locking nut 4 on the top screw rod 1 of said spacer 3; Said screw rod 1 thread head is fitted with two locking nuts (5,6); During use, firmly be positioned at the locking nut 6 of upper end, to prevent when the rotational lock nut 4 and screw rod 1 rotates synchronously with extraneous tool holding.
After increasing the type that rises, the friction between ringfeder 2 and the fuel injector cover 7 is shaped on external screw thread at the excircle of said ringfeder 2, is set with snap 8 at the external screw thread place.
The utility model adopts the type principle that rises, and promptly through the adjusting lock nut, makes spacer compress the external screw thread ringfeder; The outer surface of ringfeder and fuel injector cover inwall compress; Make it have certain frictional force between the two, outwards extract the utility model after compressing, rely on the frictional force of ringfeder and fuel injector inner room to take the fuel injector cover out of; Unclamp locking nut after extracting, unload the fuel injector cover and can accomplish dismantlement work.Therefore said structure has simple in structurely, easy to use, simplifies cylinder cap O type circle maintenance process, has shortened the maintenance activity time, has also reduced labor intensity of operating personnel simultaneously.
The above only is the preferred embodiment to the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model is to any simple modification that above embodiment did; Equivalent variations and modification all belong in the scope of the utility model technical scheme.
Claims (2)
1. a cylinder cap fuel injector overlaps extracting apparatus; It is characterized in that: this extracting apparatus comprises that mainly an end is that screw thread one end is the screw rod of pyramidal structure; The tapering point top of said screw rod is set with ringfeder, is set with spacer on the upper end screw rod of said ringfeder, can be free to slide between spacer and the screw rod; Be fitted with locking nut on the top screw rod of said spacer, said screw flight end is fitted with two locking nuts.
2. cylinder cap fuel injector cover extracting apparatus according to claim 1, it is characterized in that: the excircle of said ringfeder is shaped on external screw thread, and the place is set with snap at external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202295521U CN202151840U (en) | 2011-06-30 | 2011-06-30 | Pulling device for oil injector bushing of cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202295521U CN202151840U (en) | 2011-06-30 | 2011-06-30 | Pulling device for oil injector bushing of cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202151840U true CN202151840U (en) | 2012-02-29 |
Family
ID=45692347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202295521U Expired - Fee Related CN202151840U (en) | 2011-06-30 | 2011-06-30 | Pulling device for oil injector bushing of cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202151840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229131A (en) * | 2011-06-30 | 2011-11-02 | 天津雷沃动力股份有限公司 | Device for pulling out cylinder head fuel injector sleeve |
| CN103406869A (en) * | 2013-07-31 | 2013-11-27 | 济南二机床集团有限公司 | Plasma vortex ring extractor |
-
2011
- 2011-06-30 CN CN2011202295521U patent/CN202151840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229131A (en) * | 2011-06-30 | 2011-11-02 | 天津雷沃动力股份有限公司 | Device for pulling out cylinder head fuel injector sleeve |
| CN103406869A (en) * | 2013-07-31 | 2013-11-27 | 济南二机床集团有限公司 | Plasma vortex ring extractor |
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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: 20120229 Termination date: 20160630 |