CN103670857A - Method for assembling O-shaped ring of plunger and barrel assembly in fuel oil injection pump - Google Patents
Method for assembling O-shaped ring of plunger and barrel assembly in fuel oil injection pump Download PDFInfo
- Publication number
- CN103670857A CN103670857A CN201210362942.5A CN201210362942A CN103670857A CN 103670857 A CN103670857 A CN 103670857A CN 201210362942 A CN201210362942 A CN 201210362942A CN 103670857 A CN103670857 A CN 103670857A
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- China
- Prior art keywords
- plunger
- shaped ring
- fuel oil
- assembling
- injection pump
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Abstract
The invention relates to a method for assembling an O-shaped ring of a plunger and barrel assembly in a fuel oil injection pump. The method for assembling the O-shaped ring of the plunger and barrel assembly in the fuel oil injection pump comprises the following technical steps that the thick end of a conical bulb guide sleeve of an auxiliary jig which is formed by connecting and combining the conical bulb guide sleeve with a hollow mandrel is placed on the outer circle of a plunger sleeve, and the O-shaped ring slides down into an installing groove of the plunger sleeve through the smooth outer surface of the conical bulb guide sleeve. The method for assembling the O-shaped ring of the plunger and barrel assembly in the fuel oil injection pump has the advantages that the problem that the trimmed edge of the O-shaped ring is damaged can be effectively solved, the structure is simple, and an operator can conveniently carry out operation.
Description
Technical field
The present invention relates to a kind of fuel oil injectionpump, relate in particular to the assembly method of plunger coupled parts O type circle in this fuel oil injectionpump.
Background technique
In prior art, plunger coupled parts O type circle is installed conventional method and is adopted manual installation.Its process is: first at plunger coupled parts cylindrical and O type circle, smear lubricating grease, then by O type snare in plunger bushing chamfering place rolls downward, until O type circle falls in groove meter, install and finish.
But adopt said method to install, O type circle easily occurs that trimming damages, and causes fuel oil injectionpump leakage of oil.
Summary of the invention
The technical issues that need to address of the present invention have been to provide the assembly method of plunger coupled parts O type circle in a kind of fuel oil injectionpump, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention realizes by following technical step:
Being placed on plunger bushing cylindrical in the auxiliary fixture combining will be connected with hollow mandrel by taper bulb guide sleeve;
O type circle is slipped in plunger bushing mounting groove by taper bulb guide sleeve smooth outer surface.
Compared with prior art, the invention has the beneficial effects as follows: can not only effectively solve the trimming of O type circle and damage problem, and simple in structurely be convenient to worker's operation.
Accompanying drawing explanation
Fig. 1 is scheme of installation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
As seen from Figure 1: the present invention realizes by following technical step:
Being placed on plunger bushing 3 cylindricals in the auxiliary fixture combining will be connected with hollow mandrel 2 by taper bulb guide sleeve 1;
The instrument adopting in the present invention is connected and combines with hollow mandrel by taper bulb guide sleeve, and the outer surface taper end of taper bulb guide sleeve seamlessly transits to butt end, the butt end hollow of conical sleeve, and between plunger bushing, retain 0.04-0.142mm gap.During installation, the butt end of conical sleeve is enclosed within on plunger bushing cylindrical, O type snare is on the taper bulb leading end of conical sleeve.O type circle is slipped in plunger bushing mounting groove by taper bulb guide sleeve smooth outer surface, has effectively prevented that the shear of O type circle from damaging.
Adopt very little thrust can complete the installation of O type circle, operability has well met the accurate installation of O type circle, and its reliable performance is easy to use, to O type circle not damaged.
Claims (1)
1. an assembly method for plunger coupled parts O type circle in fuel oil injectionpump, realizes by following technical step:
Being placed on plunger bushing cylindrical in the auxiliary fixture combining will be connected with hollow mandrel by taper bulb guide sleeve;
O type circle is slipped in plunger bushing mounting groove by taper bulb guide sleeve smooth outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362942.5A CN103670857A (en) | 2012-09-25 | 2012-09-25 | Method for assembling O-shaped ring of plunger and barrel assembly in fuel oil injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210362942.5A CN103670857A (en) | 2012-09-25 | 2012-09-25 | Method for assembling O-shaped ring of plunger and barrel assembly in fuel oil injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103670857A true CN103670857A (en) | 2014-03-26 |
Family
ID=50309432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210362942.5A Pending CN103670857A (en) | 2012-09-25 | 2012-09-25 | Method for assembling O-shaped ring of plunger and barrel assembly in fuel oil injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103670857A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1800919A1 (en) * | 1968-10-03 | 1970-07-02 | Bosch Gmbh Robert | Device for adjusting the delivery rate in fuel injection pumps |
| US5402764A (en) * | 1992-11-07 | 1995-04-04 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines |
| GB2332035A (en) * | 1997-12-08 | 1999-06-09 | Caterpillar Inc | Fluid seal in a plunger and barrel assembly |
| JPH11270434A (en) * | 1998-03-23 | 1999-10-05 | Yanmar Diesel Engine Co Ltd | Fuel injection pump |
| US20070107698A1 (en) * | 2002-03-04 | 2007-05-17 | Hitachi, Ltd. | High pressure fuel pump provided with damper |
| CN102218724A (en) * | 2011-05-24 | 2011-10-19 | 奇瑞汽车股份有限公司 | Combination tool for dismounting seal ring of fuel injector of direct injection engine |
-
2012
- 2012-09-25 CN CN201210362942.5A patent/CN103670857A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1800919A1 (en) * | 1968-10-03 | 1970-07-02 | Bosch Gmbh Robert | Device for adjusting the delivery rate in fuel injection pumps |
| US5402764A (en) * | 1992-11-07 | 1995-04-04 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines |
| GB2332035A (en) * | 1997-12-08 | 1999-06-09 | Caterpillar Inc | Fluid seal in a plunger and barrel assembly |
| JPH11270434A (en) * | 1998-03-23 | 1999-10-05 | Yanmar Diesel Engine Co Ltd | Fuel injection pump |
| US20070107698A1 (en) * | 2002-03-04 | 2007-05-17 | Hitachi, Ltd. | High pressure fuel pump provided with damper |
| CN102218724A (en) * | 2011-05-24 | 2011-10-19 | 奇瑞汽车股份有限公司 | Combination tool for dismounting seal ring of fuel injector of direct injection engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |