CN216381675U - Roller body assembly for high-pressure oil supply pump - Google Patents
Roller body assembly for high-pressure oil supply pump Download PDFInfo
- Publication number
- CN216381675U CN216381675U CN202123241131.3U CN202123241131U CN216381675U CN 216381675 U CN216381675 U CN 216381675U CN 202123241131 U CN202123241131 U CN 202123241131U CN 216381675 U CN216381675 U CN 216381675U
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- roller
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- 239000003921 oil Substances 0.000 claims abstract description 52
- 239000010687 lubricating oil Substances 0.000 claims abstract description 26
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model provides a roller body assembly for a high-pressure oil supply pump, which can enable lubricating oil to enter between a roller pin and a roller lining ring and has a lubricating effect on the roller pin and the roller lining ring; the beneficial technical effects of the utility model are as follows: the proposal can lead lubricating oil into a gap between a roller pin and a roller lining ring by force, improve the load bearing capacity of the roller body assembly and meet the requirement of a high-pressure oil supply pump.
Description
Technical Field
The utility model relates to a roller body, in particular to a roller body assembly for a high-pressure oil supply pump.
Background
In the prior oil supply pump, because the oil injection pressure is low (generally lower than 1300 bar), the load borne by the roller body assembly is small, the lubricating requirement can be met by adopting splash lubrication or only carrying out forced lubrication on the outer circle surface of the roller body, and lubricating oil is not forcibly introduced into the roller pin; in the high-pressure oil supply pump, the oil injection pressure can reach 2200bar, and the rotating speed of the roller can reach 3150r/min, so that the existing lubricating mode can not meet the requirement.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the background art, the utility model provides a roller body assembly for a high-pressure oil supply pump, which comprises a roller body, wherein a roller cavity is arranged at the lower end of the roller body, pin holes are formed in structure bodies at two sides of the roller cavity, roller pins are arranged in the two pin holes, a roller lining ring is sleeved in the middle of each roller pin, and a roller is sleeved outside the roller lining ring; the improvement lies in that:
the outer wall of the roller body is provided with an annular groove and an oil inlet groove, the annular groove is positioned on the upper side of the pin hole, the oil inlet groove is a strip-shaped groove, the axial direction of the oil inlet groove is parallel to the axial direction of the roller body, and the lower end of the oil inlet groove is communicated with the annular groove; the roller body is provided with two first oil holes which are positioned at the upper sides of the pin holes and respectively correspond to the two pin holes; the outer port of the first oil hole is communicated with the annular groove, and the inner port of the first oil hole is communicated with the inner wall of the upper side of the corresponding pin hole; a plane is arranged on the outer wall of the middle part of the roller pin, and a gap is formed between the roller pin and the roller lining ring at the position of the plane; two lubricating oil channels are arranged in the roller pin, the outer end ports of the lubricating oil channels are opposite to the inner end ports of the first oil holes, the two lubricating oil channels correspond to the two first oil holes respectively, and the inner end ports of the lubricating oil channels are communicated with the plane; a positioning hole is formed in the wall of the lower side of one of the pin holes, a locking hole is formed in the position, corresponding to the positioning hole, of the roller pin, the locking hole and the positioning hole are coaxial, the diameter of the locking hole is larger than that of the positioning hole, a step pin is arranged in the locking hole, a locking head is formed at the lower end of the step pin, the diameter of the locking head is matched with that of the positioning hole, the diameter of the middle of the step pin is matched with that of the locking hole, a boss is arranged at the upper end of the step pin, a spring is arranged between the step pin and the bottom of the locking hole, the lower end of the spring is sleeved on the boss, and the upper end of the spring abuts against the bottom of the locking hole; the step pin is pushed upwards to enable the lock head to be completely retracted into the lock hole.
The working principle of the scheme is as follows: when the lubricating oil feeding pump is used, the lubricating oil introducing hole corresponding to the oil inlet groove is formed in the oil feeding pump, lubricating oil with certain pressure from an engine reaches the oil inlet groove through the lubricating oil introducing hole (the oil inlet groove is a strip-shaped groove, and the lubricating oil introducing hole is always communicated with the strip-shaped groove when the roller body moves up and down), then the lubricating oil reaches the annular groove through the oil inlet groove and reaches the plane position through the first oil hole and the lubricating oil channel, finally, the lubricating oil can form an oil film between the roller pin and the roller lining ring, meanwhile, redundant lubricating oil can seep out from the axial edge of the roller lining ring and reaches the peripheral surface of the roller through a gap between the roller and the roller cavity, and plays a lubricating role on the peripheral surface of the roller. The step pin can play a positioning role in the roller pin, the roller pin is prevented from rotating and falling out of the pin hole, the convenience of installation and disassembly can be improved, and the roller pin and the pin hole can be unlocked by jacking the step pin into the lock hole by using a tool.
The beneficial technical effects of the utility model are as follows: the proposal can lead lubricating oil into a gap between a roller pin and a roller lining ring by force, improve the load bearing capacity of the roller body assembly and meet the requirement of a high-pressure oil supply pump.
Drawings
FIG. 1 is a first cross-sectional view of the present invention;
FIG. 2 is a second cross-sectional view of the present invention;
FIG. 3 is a schematic view of the roller body;
the names corresponding to each mark in the figure are respectively: the roller comprises a roller body 1, an annular groove 11, a first oil hole 12, an oil inlet groove A, a roller pin 2, a lubricating oil channel 21, a plane 22, a roller lining ring 3, a roller 4, a step pin 5 and a positioning groove B which plays a guiding role when the roller body moves up and down.
Detailed Description
A roller body assembly for a high-pressure oil supply pump comprises a roller body 1, wherein a roller cavity is formed in the lower end of the roller body 1, pin holes are formed in structure bodies on two sides of the roller cavity, a roller pin 2 is arranged in the two pin holes, a roller lining ring 3 is sleeved in the middle of the roller pin 2, and a roller 4 is sleeved outside the roller lining ring 3; the improvement lies in that:
the outer wall of the roller body 1 is provided with an annular groove 11 and an oil inlet groove A, the annular groove 11 is positioned on the upper side of the pin hole, the oil inlet groove A is a strip-shaped groove, the axial direction of the oil inlet groove A is parallel to the axial direction of the roller body 1, and the lower end of the oil inlet groove A is communicated with the annular groove 11; the roller body 1 is provided with two first oil holes 12, the first oil holes 12 are positioned at the upper sides of the pin holes, and the two first oil holes 12 respectively correspond to the two pin holes; the outer port of the first oil hole 12 is communicated with the annular groove 11, and the inner port of the first oil hole 12 is communicated with the upper inner wall of the corresponding pin hole; a plane 22 is arranged on the outer wall of the middle part of the roller pin 2, and a gap is formed between the roller pin 2 and the roller lining ring 3 at the position of the plane 22; two lubricating oil channels 21 are arranged in the roller pin 2, the outer end ports of the lubricating oil channels 21 are opposite to the inner end ports of the first oil holes 12, the two lubricating oil channels 21 respectively correspond to the two first oil holes 12, and the inner end ports of the lubricating oil channels 21 are communicated with the plane 22; a positioning hole is formed in the wall of the lower side of one of the pin holes, a locking hole is formed in the position, corresponding to the positioning hole, of the roller pin 2, the locking hole and the positioning hole are coaxial, the diameter of the locking hole is larger than that of the positioning hole, a step pin 5 is arranged in the locking hole, a locking head is formed at the lower end of the step pin 5, the diameter of the locking head is matched with that of the positioning hole, the diameter of the middle of the step pin 5 is matched with that of the locking hole, a boss is arranged at the upper end of the step pin 5, a spring is arranged between the step pin 5 and the bottom of the locking hole, the lower end of the spring is sleeved on the boss, and the upper end of the spring abuts against the bottom of the locking hole; the step pin 5 is pushed upwards to enable the lock head to be completely retracted into the lock hole.
Claims (1)
1. A roller body assembly for a high-pressure oil supply pump comprises a roller body (1), wherein a roller cavity is formed in the lower end of the roller body (1), pin holes are formed in structure bodies on two sides of the roller cavity, a roller pin (2) is arranged in the two pin holes, a roller lining ring (3) is sleeved in the middle of the roller pin (2), and a roller (4) is sleeved outside the roller lining ring (3); the method is characterized in that:
an annular groove (11) and an oil inlet groove (A) are formed in the outer wall of the roller body (1), the annular groove (11) is located on the upper side of the pin hole, the oil inlet groove (A) is a strip-shaped groove, the axial direction of the oil inlet groove (A) is parallel to the axial direction of the roller body (1), and the lower end of the oil inlet groove (A) is communicated with the annular groove (11); the roller body (1) is provided with two first oil holes (12), the first oil holes (12) are positioned at the upper sides of the pin holes, and the two first oil holes (12) respectively correspond to the two pin holes; the outer port of the first oil hole (12) is communicated with the annular groove (11), and the inner port of the first oil hole (12) is communicated with the upper inner wall of the corresponding pin hole; a plane (22) is arranged on the outer wall of the middle part of the roller pin (2), and a gap is formed between the roller pin (2) and the roller lining ring (3) at the position of the plane (22); two lubricating oil channels (21) are arranged in the roller pin (2), the outer end ports of the lubricating oil channels (21) are opposite to the inner end ports of the first oil holes (12), the two lubricating oil channels (21) respectively correspond to the two first oil holes (12), and the inner end ports of the lubricating oil channels (21) are communicated with the plane (22); a positioning hole is formed in the wall of the lower side of one pin hole, a locking hole is formed in the position, corresponding to the positioning hole, of the roller pin (2), the locking hole and the positioning hole are coaxial, the diameter of the locking hole is larger than that of the positioning hole, a step pin (5) is arranged in the locking hole, a locking head is formed at the lower end of the step pin (5), the diameter of the locking head is matched with that of the positioning hole, the diameter of the middle of the step pin (5) is matched with that of the locking hole, a boss is arranged at the upper end of the step pin (5), a spring is arranged between the step pin (5) and the bottom of the locking hole, the lower end of the spring is sleeved on the boss, and the upper end of the spring abuts against the bottom of the locking hole; the step pin (5) is pushed upwards, so that the lock head can be completely retracted into the lock hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123241131.3U CN216381675U (en) | 2021-12-22 | 2021-12-22 | Roller body assembly for high-pressure oil supply pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123241131.3U CN216381675U (en) | 2021-12-22 | 2021-12-22 | Roller body assembly for high-pressure oil supply pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216381675U true CN216381675U (en) | 2022-04-26 |
Family
ID=81236139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123241131.3U Active CN216381675U (en) | 2021-12-22 | 2021-12-22 | Roller body assembly for high-pressure oil supply pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216381675U (en) |
-
2021
- 2021-12-22 CN CN202123241131.3U patent/CN216381675U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 401120 No.6 cuining Road, jingkaiyuan, Liangjiang New District, Yubei District, Chongqing Patentee after: Heavy Oil High Tech Electronic Fuel Injection System Co.,Ltd. Address before: 401120 No.6 cuining Road, jingkaiyuan, Liangjiang New District, Yubei District, Chongqing Patentee before: Heavy oil high tech electronic fuel injection system (Chongqing) Co.,Ltd. |