CN202147256U - Tool for removing thrust block from needle valve coupling component - Google Patents
Tool for removing thrust block from needle valve coupling component Download PDFInfo
- Publication number
- CN202147256U CN202147256U CN201120250630U CN201120250630U CN202147256U CN 202147256 U CN202147256 U CN 202147256U CN 201120250630 U CN201120250630 U CN 201120250630U CN 201120250630 U CN201120250630 U CN 201120250630U CN 202147256 U CN202147256 U CN 202147256U
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- CN
- China
- Prior art keywords
- thrust block
- needle valve
- sleeve
- positioning sleeve
- screw
- 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 - Lifetime
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Abstract
The utility model relates to a tool for removing a thrust block from a needle valve coupling component. The tool for removing the thrust block from the needle valve coupling component comprises a positioning sleeve, a pair of Half sleeves, a screw sleeve and a screw bolt; the positioning sleeve is sleeved on the outer side of an internal needle valve sleeve; the pair of half sleeves are clamped between the internal needle valve sleeve and the positioning sleeve, and the upper ends of the pair of half sleeves press against an excircle junction of the thrust block and the internal needle valve sleeve and the lower ends of the pair of half sleeves press against the positioning sleeve; the screw sleeve is sleeved at the top end of the thrust block; a clearance is reserved between the inner plane of the screw sleeve and the top end of the thrust block; the lower part of the screw sleeve is in tight fit with the outer side of the positioning sleeve; the screw bolt is matched with a screw hole on the top of the screw sleeve and presses against the top end of an internal needle valve through the central hole of the thrust block; and after the whole tool is fixed, the screw bolt, the internal needle valve and the internal needle valve sleeve are rotated to drive the thrust block to move downwards, while the thrust block is pressed against by the upper ends of the half sleeves and the thrust block is drawn out through the interaction. The tool for removing the thrust block solves the problem of removing the thrust block from the needle valve coupling component and improves the working efficiency and the working quality in the regulating and maintaining process of an oil sprayer of a diesel engine.
Description
Technical field
The utility model relates to a kind of removal tool, and is concrete, relates to the removal tool that fuel injector is debugged pintle nozzle match-ing parts thrust block seat in the servicing operations in a kind of diesel engine.
Background technology
Diesel injector owing to be interference fit between thrust block seat Φ 18p6 cylindrical and the inner needle valve sleeve Φ 18H7 endoporus, needs through compressing mode it to be fitted together when assembling.But; Carry out performance adjustment or maintenance at fuel injector and the time can run into situation about need thrust block seat, inner needle valve sleeve be taken apart, because the thrust block seat cylindrical only exceeds 1mm than inner needle valve sleeve cylindrical, conventional instrument is difficult to it is taken apart; Through knocking the 1mm omoplate that exceeds it is taken apart at first; But frequent damage parts, thrust block seat is not also taken apart, very trouble.
The utility model content
The purpose of the utility model provides a kind of thrust block seat removal tool, solves the dismounting problem of pintle nozzle match-ing parts thrust block seat, overcomes human factor, raises the efficiency and quality.
In order to achieve the above object, the utility model provides a kind of removal tool of pintle nozzle match-ing parts thrust block.This thrust block seat removal tool comprises positioning sleeve, a pair of Hough cover, swivel nut and screw.Wherein, described positioning sleeve is nested with in the outside of inner needle valve sleeve, and large end face is downward.Described a pair of Hough cover is interposed between inner needle valve sleeve and the positioning sleeve, and the cylindrical junction of thrust block seat and inner needle valve sleeve is withstood in this Hough set upper side, and it is inboard that the positioning sleeve large end face is withstood in the lower end.Described swivel nut is nested with on the thrust block seat top, and the gap that prevents that part from being damaged by pressure is left on inner plane and thrust block seat top, and the bottom and the positioning sleeve outside closely cooperate fixing.Described screw matches with the screw at swivel nut top, through the centre bore of thrust block seat, withstands the inner needle valve top.
The removal tool of above-mentioned a kind of thrust block seat, wherein, described positioning sleeve is an annular.
The removal tool of above-mentioned a kind of thrust block seat, wherein, described a pair of Hough cover is semi-circular for symmetry; Leave the gap between described a pair of Hough cover and positioning sleeve and the inner needle valve sleeve, prevent damage parts.
The removal tool of above-mentioned a kind of thrust block seat, wherein, described swivel nut lower inside screw thread and positioning sleeve outside screw matching and fixing.
The thrust block seat removal tool that adopts the utility model to provide can very easily be backed out inner needle valve and inner needle valve sleeve, takes out thrust block seat.
Description of drawings
Fig. 1 is the thrust block seat removal tool structural representation of the utility model.
The pintle nozzle match-ing parts sketch map that Fig. 2 uses for the utility model.
The specific embodiment
Be further described below in conjunction with the specific embodiment of accompanying drawing the utility model.
Fig. 1 is a thrust block seat removal tool structure chart, and this thrust block seat removal tool comprises positioning sleeve 1, a pair of Hough cover 2, swivel nut 3 and screw 4.
Wherein, positioning sleeve 1 is nested with in the outside of inner needle valve sleeve 6, and large end face is downward.A pair of Hough cover 2 is interposed between inner needle valve sleeve 6 and the positioning sleeve 1, and Hough overlaps the cylindrical junction that thrust block seat 5 and inner needle valve sleeve 6 are withstood in 2 upper ends, and the large end face inboard of positioning sleeve 1 is withstood in the lower end.Swivel nut 3 is nested with on the top of thrust block seat 5, and the gap that prevents that part from being damaged by pressure is left on inner plane and thrust block seat 5 tops, and the bottom and positioning sleeve 1 outside closely cooperate fixing.Screw 4 matches with the screw at swivel nut 3 tops, through the centre bore of thrust block seat 5, withstands inner needle valve 7 tops.
Positioning sleeve 1 is an annular, is matched in clearance between this positioning sleeve 1 and the inner needle valve sleeve 6.
A pair of Hough cover 2 is the semi-circular of symmetry, leaves the gap between this Hough cover 2 and inner needle valve sleeve 6 and the positioning sleeve 1, prevents damage parts.
Swivel nut 3 lower inside screw threads cooperate with positioning sleeve 1 outside screw, screw positioning sleeve 1 and fix.
The screw that screw 4 matches from swivel nut 3 tops is screwed into the swivel nut 3, and the centre bore through thrust block seat 5 withstands inner needle valve 7 tops.
Fig. 2 is the pintle nozzle match-ing parts sketch map, i.e. the effective object of the thrust block seat removal tool that provides of the utility model.Wherein, inner needle valve sleeve 6 is nested with outside inner needle valve 7, and thrust block seat 5 is arranged on the top of inner needle valve 7 and inner needle valve sleeve 6.
This thrust block seat removal tool action principle is following:
According to the dismounting problem of aforementioned pintle nozzle match-ing parts, crucial difficult point is that thrust block seat 5 and inner needle valve sleeve 6 are interference fit, and does not knock or borrow the position of power drawing.Therefore, the utility model has designed a kind of instrument, removes thrust block seat 5.Thrust block seat 5 maximum cylindricals have more about 1mm than inner needle valve sleeve 6 cylindricals; Can block the 1mm omoplate of thrust block seat 5 through kit; Through thrust block seat 5 medium pores, withstand inner needle valve 7 top end faces then, it is downward to make inner needle valve 7 drive inner needle valve sleeve 6; The lower end of thrust block seat 5 is withstood simultaneously, utilizes reaction force that thrust block seat 5 is extracted from inner needle valve sleeve 6.
When the thrust block seat removal tool that the utility model provides was used at the scene, at first that positioning sleeve 1 large end face is downward, a direction to thrust block seat 5 from opposite with thrust block seat 5 put outside the inner needle valve sleeve 6; Insert in the positioning sleeve 1 respectively two Hough covers 2 and the interval outside the inner needle valve sleeve 6; Make Hough overlap the cylindrical junction that thrust block seat 5 and inner needle valve sleeve 6 are withstood in 2 upper ends; Positioning sleeve 1 is withstood in the lower end; Leave the gap between these two Hough covers 2 and inner needle valve sleeve 6 and the positioning sleeve 1, prevent damage parts; Screw positioning sleeve 1 with swivel nut 3 and fix, the gap that prevents that part from being damaged by pressure is left on swivel nut 3 inner planes and thrust block seat 5 tops; Again screw 4 is screwed in the swivel nut 3, withstands inner needle valve 7 top end faces; Be placed on whole fuel injector on the anchor clamps, with the spanner screw 4 that turns clockwise, it is downward together that inner needle valve 7 and inner needle valve sleeve 6 drive thrust block seats 5, and thrust block seat 5 is overlapped 2 upper ends by Hough and withstands, and interacts until ejecting thrust block seat 5; Because after thrust block seat 5 was pulled down, screw 4 was no longer stressed, so can very easily turn on inner needle valve 7 and inner needle valve sleeve 6.
Although the content of the utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to the utility model.After those skilled in the art have read foregoing, for the multiple modification of the utility model with to substitute all will be conspicuous.Therefore, the protection domain of the utility model should be limited appended claim.
Claims (4)
1. the removal tool of a pintle nozzle match-ing parts thrust block is characterized in that, this thrust block seat removal tool comprises positioning sleeve (1), a pair of Hough cover (2), swivel nut (3) and screw (4);
Described positioning sleeve (1) is nested with in the outside of inner needle valve sleeve (6), and large end face is downward;
Described a pair of Hough cover (2) is interposed between inner needle valve sleeve (6) and the positioning sleeve (1); The cylindrical junction that thrust block seat (5) and inner needle valve sleeve (6) are withstood in this Hough cover (2) upper end, the inboard of positioning sleeve (1) large end face is withstood in the lower end;
Described swivel nut (3) is nested with on thrust block seat (5) top, and the gap that prevents that part from being damaged by pressure is left on inner plane and thrust block seat (5) top, and bottom and positioning sleeve (1) outside closely cooperates fixing;
Described screw (4) matches with the screw at swivel nut (3) top, through the centre bore of thrust block seat (5), withstands inner needle valve (7) top.
2. the removal tool of a kind of pintle nozzle match-ing parts thrust block as claimed in claim 1 is characterized in that, described positioning sleeve (1) is an annular.
3. the removal tool of a kind of pintle nozzle match-ing parts thrust block as claimed in claim 1 is characterized in that, described a pair of Hough cover (2) is the semi-circular of symmetry; Leave the gap between described a pair of Hough cover and positioning sleeve (1) and the inner needle valve sleeve (6), prevent damage parts.
4. the removal tool of a kind of pintle nozzle match-ing parts thrust block as claimed in claim 1 is characterized in that, described swivel nut (3) lower inside screw thread and positioning sleeve (1) outside screw matching and fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120250630U CN202147256U (en) | 2011-07-15 | 2011-07-15 | Tool for removing thrust block from needle valve coupling component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120250630U CN202147256U (en) | 2011-07-15 | 2011-07-15 | Tool for removing thrust block from needle valve coupling component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202147256U true CN202147256U (en) | 2012-02-22 |
Family
ID=45588331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120250630U Expired - Lifetime CN202147256U (en) | 2011-07-15 | 2011-07-15 | Tool for removing thrust block from needle valve coupling component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202147256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016229A (en) * | 2012-12-25 | 2013-04-03 | 天台县唐宋汽车修配厂 | Withdrawal tool of oil injector needle valve |
-
2011
- 2011-07-15 CN CN201120250630U patent/CN202147256U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016229A (en) * | 2012-12-25 | 2013-04-03 | 天台县唐宋汽车修配厂 | Withdrawal tool of oil injector needle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |