CN202194756U - Rolling wheel body assembly of fuel feeding pump - Google Patents
Rolling wheel body assembly of fuel feeding pump Download PDFInfo
- Publication number
- CN202194756U CN202194756U CN2011203258197U CN201120325819U CN202194756U CN 202194756 U CN202194756 U CN 202194756U CN 2011203258197 U CN2011203258197 U CN 2011203258197U CN 201120325819 U CN201120325819 U CN 201120325819U CN 202194756 U CN202194756 U CN 202194756U
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- CN
- China
- Prior art keywords
- rolling wheel
- roller
- pin
- body assembly
- fuel feeding
- 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
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Abstract
The utility model provides a rolling wheel assembly body of a fuel feeding pump, which aims at resolving the problems that in the prior art, rolling wheel inner circles and rolling wheel pin outer circles of rolling wheel body assemblies of fuel feeding pumps of motor vehicle engines are easily abraded, and once the abrasion is severe, damage or failure and the like of the rolling wheel assemblies are caused. The rolling wheel assembly of the fuel feeding pump comprises a rolling wheel body, a rolling wheel pin, a rolling wheel and a positioning block, wherein the thickness of the wall of the rolling wheel is reduced, and a rolling pin is arranged between the rolling wheel and the rolling wheel pin. The rolling wheel body assembly of the fuel feeding pump has the advantages of avoiding sliding friction between the rolling wheel and the rolling wheel pin, preventing the rolling wheel and the rolling wheel pin from being abraded and modifying an ordinary rolling wheel structure into a rolling pin bearing structure, thereby being capable of bearing larger load and higher rotating speed and improving working reliability of the fuel feeding pump under large load and high rotating speed.
Description
Technical field
The utility model relates to engine fuel oil feed pump roller body assembly, specially refers to motor car engine fuel feed pump roller body assembly.
Background technique
Motor car engine fuel feed pump roller body assembly is an important spare part in the fuel feed pump, plays and converts rotatablely moving of camshaft into plunger coupled parts upper and lower reciprocating important function.Motor car engine fuel feed pump roller body assembly generally is made up of parts such as roller body, roller pin, roller and positioning blocks; The quality of roller body modular construction and performance plays conclusive significant role to the proper functioning and the reliability of fuel feed pump; The damage of roller body assembly or inefficacy; To directly cause the trunk piston set cisco unity malfunction, and cause whole fuel feed pump work to lose efficacy.The roller of existing technology motor car engine fuel feed pump roller body assembly is shaped as hollow cylinder; At hollow position roller pin is set; Roller rotates around roller pin during work, and the interior circle of roller is that cylinder contacts with the cylindrical of roller pin, is the face sliding friction between the two.Obviously, under the bigger situation of load, circle and roller pin cylindrical all are easy to be worn in the roller, in case serious wear with damage that causes the roller body assembly or inefficacy, will directly cause the trunk piston set cisco unity malfunction, cause whole fuel feed pump work to lose efficacy.
Summary of the invention
For circle and roller pin cylindrical in the roller that overcomes existing technology motor car engine fuel feed pump roller body assembly all are easy to be worn; In case serious wear; With problems such as damage that causes the roller body assembly or inefficacies, the utility model proposes a kind of fuel feed pump roller body assembly.The utility model fuel feed pump roller body assembly comprises roller body, roller pin, roller and positioning block, wherein, with roller wall attenuate, and between roller and roller pin, needle roller is set.
The useful technique effect of the utility model fuel feed pump roller body assembly is to have avoided face sliding friction between roller and the roller pin; Avoided roller and roller pin to be worn; Change common roller structure into the needle bearing structure; Can bear bigger load and the rotating speed of Geng Gao, strengthened the reliability that the fuel feed pump is worked under high load, high rotating speed.
Description of drawings
Accompanying drawing 1 is the work schematic representation of existing technology motor car engine fuel feed pump roller body assembly;
Accompanying drawing 2 is the enlarged diagram of existing technology motor car engine fuel feed pump roller body assembly;
Accompanying drawing 3 is the enlarged diagram of the utility model fuel feed pump roller body assembly;
Accompanying drawing 4 is the work schematic representation of the utility model fuel feed pump roller body assembly.
Below in conjunction with accompanying drawing and specific embodiment the utility model fuel feed pump roller body assembly is further specified.
Embodiment
Accompanying drawing 1 is the work schematic representation of existing technology motor car engine fuel feed pump roller body assembly, and accompanying drawing 2 is the enlarged diagram of existing technology motor car engine fuel feed pump roller body assembly, among the figure; 1 is plunger; 2 is roller body, and 3 is roller pin, and 4 is roller; 5 is cam, and 6 is positioning block.Can know by figure; Motor car engine fuel feed pump roller body assembly comprises: roller body 2, roller pin 3, roller 4 and positioning block 6; Its working procedure is cam 5 rotations, and the outer rim of cam 5 promotes roller 4, and roller 4 drives plunger 1 upper and lower to-and-fro motion through roller pin 3.Positioning block 6 moves in pump housing guiding groove in roller body assembly movement process, and the upper and lower to-and-fro motion of pair roller body assembly play the guiding role.The quality of roller body modular construction and performance plays conclusive significant role to the proper functioning and the reliability of fuel feed pump, and the damage of roller body assembly or inefficacy will directly cause the trunk piston set cisco unity malfunction, causes whole fuel feed pump work to lose efficacy.The roller 4 of existing technology motor car engine fuel feed pump roller body assembly be shaped as hollow cylinder; At hollow position roller pin 3 is set; Roller 4 rotates around roller pin 3 during work, and the interior circle of roller 4 is that cylinder contacts with the cylindrical of roller pin 3, is sliding friction between the two.Obviously, under the bigger situation of load, the interior circle of roller 4 and the cylindrical of roller pin 3 all are easy to be worn; In case serious wear; With damage that causes the roller body assembly or inefficacy, will directly cause the trunk piston set cisco unity malfunction, cause whole fuel feed pump work to lose efficacy.
Accompanying drawing 3 is the enlarged diagram of the utility model fuel feed pump roller body assembly, and accompanying drawing 4 is the work schematic representation of the utility model fuel feed pump roller body assembly, and among the figure, 1 is plunger; 2 is roller body, and 3 is roller pin, and 4 is roller; 5 is cam, and 6 is positioning block, and 7 is needle roller.Can know by figure; For circle and roller pin cylindrical in the roller that overcomes existing technology motor car engine fuel feed pump roller body assembly all are easy to be worn; In case serious wear; With problems such as damage that causes the roller body assembly or inefficacies, the utility model proposes a kind of fuel feed pump roller body assembly.The utility model fuel feed pump roller body assembly comprises: roller body 2, roller pin 3, roller 4 and positioning block 6 wherein, with the wall attenuate of roller 4, are provided with needle roller 7 between roller 4 and roller pin 3.The utility model fuel feed pump roller body assembly is when cam 5 contacts with roller 4; The bearing structure that roller 4 is formed through needle roller 7 acts on the camshaft rotating force that produces that rotatablely moves on the needle roller 7 through roller 4, passes to roller pin 3 by needle roller 7 again and drives plunger 1 upper and lower to-and-fro motion.Obviously; Needle roller 7 and roller 4 and roller pin 3 are rolling friction for line contacts between the three, avoided face sliding friction between roller and the roller pin; Avoided roller and roller pin to be worn; Change common roller structure into the needle bearing structure, thereby make the roller body assembly can bear bigger load and the rotating speed of Geng Gao, strengthened the reliability that the fuel feed pump is worked under high load, high rotating speed.
Claims (1)
1. a fuel feed pump roller body assembly comprises roller body, roller pin, roller and positioning block, it is characterized in that: with roller wall attenuate, and between roller and roller pin, needle roller is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203258197U CN202194756U (en) | 2011-09-01 | 2011-09-01 | Rolling wheel body assembly of fuel feeding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203258197U CN202194756U (en) | 2011-09-01 | 2011-09-01 | Rolling wheel body assembly of fuel feeding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194756U true CN202194756U (en) | 2012-04-18 |
Family
ID=45949671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203258197U Expired - Fee Related CN202194756U (en) | 2011-09-01 | 2011-09-01 | Rolling wheel body assembly of fuel feeding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322418A (en) * | 2011-09-01 | 2012-01-18 | 中国重汽集团重庆燃油喷射系统有限公司 | Fuel feed pump roller body assembly |
| CN103362584A (en) * | 2013-03-26 | 2013-10-23 | 哈尔滨工程大学 | Fuel supercharging double-drum roller driving mechanism |
-
2011
- 2011-09-01 CN CN2011203258197U patent/CN202194756U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322418A (en) * | 2011-09-01 | 2012-01-18 | 中国重汽集团重庆燃油喷射系统有限公司 | Fuel feed pump roller body assembly |
| CN103362584A (en) * | 2013-03-26 | 2013-10-23 | 哈尔滨工程大学 | Fuel supercharging double-drum roller driving mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20150901 |
|
| EXPY | Termination of patent right or utility model |