CN212027962U - Wear-resisting type plunger matching parts - Google Patents
Wear-resisting type plunger matching parts Download PDFInfo
- Publication number
- CN212027962U CN212027962U CN202020413953.1U CN202020413953U CN212027962U CN 212027962 U CN212027962 U CN 212027962U CN 202020413953 U CN202020413953 U CN 202020413953U CN 212027962 U CN212027962 U CN 212027962U
- Authority
- CN
- China
- Prior art keywords
- plunger
- hole
- oil
- wear
- sleeve
- 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
- 239000003921 oil Substances 0.000 claims abstract description 51
- 239000010687 lubricating oil Substances 0.000 claims abstract description 9
- 239000000446 fuel Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
A wear-resistant plunger and barrel assembly comprises a plunger, a gear ring and a plunger sleeve, wherein a first through hole is formed in the plunger sleeve; a second through hole is formed in the lower part of the gear ring, and a third through hole is formed in the upper part of the gear ring; the lower end of the plunger sleeve is sleeved in the third through hole; the plunger is arranged in the first through hole and the second through hole in a sliding mode; a circle of annular indent is processed in the middle of the plunger, and C-shaped chamfers are processed at the upper end and the lower end of the annular indent; an oil storage cavity is arranged below the plunger sleeve, and lubricating oil is filled in the oil storage cavity; and a vertical oil duct and a transverse oil duct are sequentially communicated below the oil storage cavity, and an outlet of the transverse oil duct is communicated with the annular indent. Compared with the prior art, the utility model discloses a wear-resisting type plunger matching parts, plunger are when reciprocating motion, carry lubricating oil through the oil storage chamber, make plunger bushing inside and plunger outer lane lubricated, reduce the wearing and tearing that plunger piston motion friction caused.
Description
Technical Field
The utility model relates to a fuel injection pump equipment field specifically indicates a wear-resisting type plunger matching parts.
Background
The fuel injection pump supplies fuel through the reciprocating motion of a plunger in a pump body, and because the plunger moves for a long time, abrasion is easily caused after the friction of the outer circular surface of the plunger, and a gap is formed, so that fuel supply leakage is caused, the fuel supply oil pressure is insufficient, and the power output of a diesel engine is insufficient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to the not enough of above-mentioned prior art, and provide a wear-resisting type plunger matching parts. In order to solve the technical problem, the utility model discloses a technical scheme is:
a wear-resistant plunger and barrel assembly comprises a plunger, a gear ring and a plunger sleeve, wherein a first through hole is formed in the plunger sleeve; a second through hole is formed in the lower part of the gear ring, and a third through hole is formed in the upper part of the gear ring; the lower end of the plunger sleeve is sleeved in the third through hole; the plunger is arranged in the first through hole and the second through hole in a sliding mode; a circle of annular indent is processed in the middle of the plunger, and C-shaped chamfers are processed at the upper end and the lower end of the annular indent; an oil storage cavity is arranged below the plunger sleeve, and lubricating oil is filled in the oil storage cavity; and a vertical oil duct and a transverse oil duct are sequentially communicated below the oil storage cavity, and an outlet of the transverse oil duct is communicated with the annular indent.
Furthermore, an oil inlet is formed in one side of the upper end of the plunger sleeve, and an oil outlet is formed in the other end of the plunger sleeve.
Furthermore, a gasket is arranged at the bottom of the plunger sleeve and is embedded in the gear ring.
Further, a plunger head is processed at the upper part of the plunger, and a flange is processed at the lower part of the plunger; and wear-resistant layers are arranged outside the plunger head and the flange.
Furthermore, the corners of the vertical oil passage and the corners of the transverse oil passage are transited through arc angles.
Compared with the prior art, the utility model discloses a wear-resisting type plunger matching parts, plunger are when reciprocating motion, carry lubricating oil through the oil storage chamber, make plunger bushing inside and plunger outer lane lubricated, reduce the wearing and tearing that plunger piston motion friction caused.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of FIG. 1A;
the oil pump comprises a plunger 1, a plunger 2, a gear ring 3, a plunger sleeve 4, a gasket 5, an oil inlet 6, an oil outlet 7, an annular concave part 8, a C-shaped chamfer 9, an oil storage cavity 10, a vertical oil duct 11, a transverse oil duct 12, a plunger head 13 and a flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below.
As shown in fig. 1 and 2, the wear-resistant plunger and barrel assembly comprises a plunger 1, a gear ring 2 and a plunger sleeve 3, wherein a first through hole is formed in the plunger sleeve 3; a second through hole is formed in the lower portion of the gear ring 2, and a third through hole is formed in the upper portion of the gear ring 2; the lower end of the plunger sleeve 3 is sleeved in the third through hole; the plunger 1 is arranged in the first through hole and the second through hole in a sliding mode; the bottom of the plunger sleeve 3 is provided with a gasket 4, and the gasket 4 is embedded and connected into the gear ring 2; an oil inlet 5 is formed in one side of the upper end of the plunger sleeve 3, and an oil outlet 6 is formed in the other end of the plunger sleeve.
A circle of annular indent 7 is processed in the middle of the plunger 1, and C-shaped chamfers 8 are processed at the upper end and the lower end of the annular indent 7; four oil storage cavities 9 are arranged below the plunger sleeve 3, and the oil storage cavities 9 are uniformly distributed around the central shaft of the plunger 1; lubricating oil is injected into the oil storage tank 9; a vertical oil duct 10 and a transverse oil duct 11 are sequentially communicated below the oil storage cavity 9; the corners of the vertical oil passage 10 and the transverse oil passage 11 are transited through arc angles, wherein the outlet of the transverse oil passage 11 is communicated with the annular indent 7; in the embodiment, the annular indent 7 is arranged, so that the oil storage tank 9 can be conveniently filled with oil, and the friction between the plunger 1 and the plunger sleeve 3 is reduced; by providing the "C" chamfer 8, a large portion of the lubricating oil can be pressed back when the plunger 1 moves downward.
A plunger head 12 is processed at the upper part of the plunger 1, and a flange 13 is processed at the lower part of the plunger 1; and wear-resistant layers are arranged outside the plunger head 12 and the flange 13 and are subjected to nitriding and chromium plating treatment.
The working principle is as follows: the plunger 1 reciprocates in the plunger sleeve 3, when the plunger 1 moves upwards, the pressure at the outer side of the outlet of the transverse oil duct 11 is higher, and the lubricating oil in the oil storage tank 9 is pressed out to lubricate the inside of the plunger sleeve 3; when the plunger 1 moves downward, a higher pressure is formed at the outlet of the lateral oil passage 11 toward the inside, and the lubricating oil is pressed back in preparation for the next lubrication.
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 (5)
1. A wear-resistant plunger and barrel assembly comprises a plunger, a gear ring and a plunger sleeve, wherein a first through hole is formed in the plunger sleeve; a second through hole is formed in the lower part of the gear ring, and a third through hole is formed in the upper part of the gear ring; the lower end of the plunger sleeve is sleeved in the third through hole; the plunger slides and sets up in through-hole one and through-hole two, its characterized in that: a circle of annular indent is processed in the middle of the plunger, and C-shaped chamfers are processed at the upper end and the lower end of the annular indent; an oil storage cavity is arranged below the plunger sleeve, and lubricating oil is filled in the oil storage cavity; and a vertical oil duct and a transverse oil duct are sequentially communicated below the oil storage cavity, and an outlet of the transverse oil duct is communicated with the annular indent.
2. A wear-resistant plunger and barrel assembly as defined in claim 1, wherein: an oil inlet is formed in one side of the upper end of the plunger sleeve, and an oil outlet is formed in the other end of the plunger sleeve.
3. A wear-resistant plunger and barrel assembly as defined in claim 1, wherein: and a gasket is arranged at the bottom of the plunger sleeve and is embedded and connected in the gear ring.
4. A wear-resistant plunger and barrel assembly as defined in claim 1, wherein: the upper part of the plunger is provided with a plunger head, and the lower part of the plunger is provided with a flange; and wear-resistant layers are arranged outside the plunger head and the flange.
5. A wear-resistant plunger and barrel assembly as defined in claim 1, wherein: the corners of the vertical oil passage and the corners of the transverse oil passage are transited through arc angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413953.1U CN212027962U (en) | 2020-03-26 | 2020-03-26 | Wear-resisting type plunger matching parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020413953.1U CN212027962U (en) | 2020-03-26 | 2020-03-26 | Wear-resisting type plunger matching parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212027962U true CN212027962U (en) | 2020-11-27 |
Family
ID=73488358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020413953.1U Expired - Fee Related CN212027962U (en) | 2020-03-26 | 2020-03-26 | Wear-resisting type plunger matching parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212027962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322186A (en) * | 2020-03-26 | 2020-06-23 | 南通通力油泵有限公司 | Wear-resisting type plunger matching parts |
-
2020
- 2020-03-26 CN CN202020413953.1U patent/CN212027962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322186A (en) * | 2020-03-26 | 2020-06-23 | 南通通力油泵有限公司 | Wear-resisting type plunger matching parts |
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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: 20201127 |