CN212155011U - Improved tappet body - Google Patents
Improved tappet body Download PDFInfo
- Publication number
- CN212155011U CN212155011U CN202020413951.2U CN202020413951U CN212155011U CN 212155011 U CN212155011 U CN 212155011U CN 202020413951 U CN202020413951 U CN 202020413951U CN 212155011 U CN212155011 U CN 212155011U
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- tappet
- blind hole
- boss
- annular
- 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
Links
- 230000007704 transition Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Fuel-Injection Apparatus (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
An improved tappet body comprises a tappet, a pin shaft and rollers, wherein two sides of the bottom of the tappet are provided with arch notches; a pin shaft hole is formed in the side wall of the arched notch; the two ends of the pin shaft are in interference fit in the pin shaft hole; the roller is sleeved on the pin shaft; the upper end of the tappet is provided with a first blind hole; a boss is machined in the center of the bottom of the first blind hole, and a second blind hole is machined in the boss; a circle of annular baffle is arranged outside the boss; an annular groove is formed between the annular baffle and one side wall of the blind hole. Compared with the prior art, the utility model discloses an improved generation tappet body through two location plunger lower extremes of blind hole, through the spacing spring of annular groove, has saved the spring seat down, has practiced thrift the cost, and the manufacturing process is more convenient moreover.
Description
Technical Field
The utility model relates to a fuel injection pump equipment field specifically indicates an improved generation tappet body.
Background
Be provided with the spring between tappet body and the plunger, when crossing work, promote tappet body through the cam and drive plunger reciprocating motion and carry out the fuel feeding, reset tappet body through the elasticity of spring, all install the spring lower bearing on the tappet body of present at present, the plunger lower extreme is installed with the spring lower bearing, and the spring housing is located the spring lower bearing outside, and this kind of mounting means not only makes complicacy, has increased manufacturing cost moreover.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, and provide an improved generation tappet body. In order to solve the technical problem, the utility model discloses a technical scheme is:
an improved tappet body comprises a tappet, a pin shaft and rollers, wherein two sides of the bottom of the tappet are provided with arch notches; a pin shaft hole is formed in the side wall of the arched notch; the two ends of the pin shaft are in interference fit in the pin shaft hole; the roller is sleeved on the pin shaft; the upper end of the tappet is provided with a first blind hole; a boss is machined in the center of the bottom of the first blind hole, and a second blind hole is machined in the boss; a circle of annular baffle is arranged outside the boss; an annular groove is formed between the annular baffle and one side wall of the blind hole.
Furthermore, the roller wheels are in transition fit with the pin shaft, and a plurality of annular oil storage grooves are processed on the shaft body of the pin shaft; the annular oil storage tank is located in the transition fit area of the roller and the pin shaft.
Furthermore, two sides of the roller are provided with check rings; a positioning groove is processed on the pin shaft; the retaining ring is clamped in the positioning groove.
Compared with the prior art, the utility model discloses an improved generation tappet body through two location plunger lower extremes of blind hole, through the spacing spring of annular groove, has saved the spring seat down, has practiced thrift the cost, and the manufacturing process is more convenient moreover.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
the device comprises a tappet 1, a tappet 2, a pin shaft 3, a roller 4, a boss 5, an annular baffle 6, an annular groove 7, an annular oil storage groove 8 and a retainer ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
As shown in fig. 1, an improved tappet body comprises a tappet 1, a pin shaft 2 and a roller 3, wherein two sides of the bottom of the tappet 1 are provided with arch notches; a pin shaft hole is formed in the side wall of the arched notch; the two ends of the pin shaft 2 are in interference fit in the pin shaft holes; the roller 3 is sleeved on the pin shaft 2; the upper end of the tappet 1 is provided with a first blind hole; a boss 4 is machined in the center of the bottom of the first blind hole, a second blind hole is machined in the boss 4, and the second blind hole is used for positioning the lower end of the plunger; a ring of annular baffle plates 5 are arranged on the outer side of the boss 4; an annular groove 6 is formed between the annular baffle 5 and one side wall of the blind hole, and the annular groove 6 is used for limiting the spring.
In the embodiment, the roller 3 is in transition fit with the pin shaft 2, and a plurality of annular oil storage grooves 7 are processed on the shaft body of the pin shaft 2; the annular oil storage groove 7 is positioned in the transition fit area of the roller 3 and the pin shaft 2, and lubricating oil is injected into the annular oil storage groove 7; when the roller 3 works, the lubricating oil in the annular oil storage groove 7 plays a role in lubricating.
In this embodiment, the roller 3 is provided with retaining rings 8 on both sides; a positioning groove is processed on the pin shaft 2; the retainer ring 8 is clamped in the positioning groove.
The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications or changes without departing from the spirit of the present invention.
Claims (3)
1. An improved tappet body comprises a tappet, a pin shaft and rollers, wherein two sides of the bottom of the tappet are provided with arch notches; a pin shaft hole is formed in the side wall of the arched notch; the two ends of the pin shaft are in interference fit in the pin shaft hole; the round pin epaxial, its characterized in that are located to the gyro wheel cover: the upper end of the tappet is provided with a first blind hole; a boss is machined in the center of the bottom of the first blind hole, and a second blind hole is machined in the boss; a circle of annular baffle is arranged outside the boss; an annular groove is formed between the annular baffle and one side wall of the blind hole.
2. An improved tappet body as set forth in claim 1, wherein: the roller wheels are in transition fit with the pin shafts, and a plurality of annular oil storage grooves are processed on the shaft bodies of the pin shafts; the annular oil storage tank is located in the transition fit area of the roller and the pin shaft.
3. An improved tappet body as set forth in claim 1, wherein: check rings are arranged on two sides of the roller; a positioning groove is processed on the pin shaft; the retaining ring is clamped in the positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413951.2U CN212155011U (en) | 2020-03-26 | 2020-03-26 | Improved tappet body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413951.2U CN212155011U (en) | 2020-03-26 | 2020-03-26 | Improved tappet body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155011U true CN212155011U (en) | 2020-12-15 |
Family
ID=73716023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020413951.2U Expired - Fee Related CN212155011U (en) | 2020-03-26 | 2020-03-26 | Improved tappet body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155011U (en) |
-
2020
- 2020-03-26 CN CN202020413951.2U patent/CN212155011U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20201215 |