CN212004156U - Oil pump transmission mechanism - Google Patents
Oil pump transmission mechanism Download PDFInfo
- Publication number
- CN212004156U CN212004156U CN202020393403.8U CN202020393403U CN212004156U CN 212004156 U CN212004156 U CN 212004156U CN 202020393403 U CN202020393403 U CN 202020393403U CN 212004156 U CN212004156 U CN 212004156U
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- gear
- oil pump
- wear
- resistant steel
- steel ball
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Abstract
The utility model relates to an oil pump transmission mechanism, which solves the technical problems of large processing difficulty and high manufacturing cost of a metering oil pump gear top head, and is provided with a gear top head body, wherein the large end of the gear top head body is provided with a blind hole, a wear-resistant steel ball is arranged in the blind hole, and the gear top head body is in interference riveting connection with the wear-resistant steel ball; the gear top is assembled with the adjusting shaft body in an interference fit mode, and the wear-resistant steel ball is attached to the side face of the transmission gear all the time. The utility model discloses can extensively be applied to measurement oil pump gear drive system.
Description
Technical Field
The utility model relates to a mechanical engineering technical field especially relates to an oil pump drive mechanism.
Background
The existing metering oil pump gear ejector is of an integral structure, and the sphericity of a working part of the ejector is ensured through machining; and after machining, heat treatment is carried out according to the characteristics of the material, so that the strength and the wear resistance of the working part are ensured. The spherical structure of the working part of the integral structure gear top has higher requirements on machining during machining, the selection of materials during design is very important, the use strength is required to be met, the wear resistance is also very good, and the selection of the materials determined by the use performance is greatly restricted; workability and manufacturing costs are high.
Disclosure of Invention
The utility model discloses a solve the current measurement oil pump gear top processing degree of difficulty big, technical problem that manufacturing cost is high provides an oil pump drive mechanism that processing is easy, obtain easily, low in manufacturing cost.
The utility model provides an oil pump transmission mechanism, which is provided with an adjusting shaft body, a gear top body and a transmission gear, wherein the gear top body is assembled with the adjusting shaft body in an interference way, the gear top body is directly contacted with the transmission gear, the big end of the gear top body is provided with a blind hole, a wear-resistant steel ball is arranged in the blind hole, and the gear top body is connected with the wear-resistant steel ball in an interference way; the wear-resistant steel ball is always attached to the side face of the transmission gear.
Preferably, the bottom angle of the blind hole of the gear top head body is 120 degrees.
Preferably, the material of the gear plug body is 1Cr18Ni9 Ti.
Preferably, the material of the wear-resistant steel balls is Gr 15.
Preferably, the transmission gear structure is a special-shaped structure, and the contact surface of the transmission gear structure and the wear-resistant steel ball is a concave-convex surface.
Preferably, the transmission gear material 38 CrMoAl.
Preferably, the material of the adjusting shaft body is 45 #.
The utility model has the advantages that:
an assembled gear top head structure is adopted; the wear-resistant steel ball is pressed into the gear top head body, the original machined spherical surface structure is replaced by the standard wear-resistant steel ball, the machinability of a workpiece is greatly improved, and the strength and the wear resistance of the steel ball are obviously improved compared with those of the original ball head; the purchase cost is low, the machining difficulty of the gear plug body is reduced, and the cutter cost, the machining cost and the heat treatment cost are obviously improved.
Drawings
Fig. 1 is a schematic view of an assembly structure of the present invention;
FIG. 2 is a schematic view of the gear plug installation of the present invention;
fig. 3 is a schematic structural view of the gear plug of the present invention;
FIG. 4 is a schematic view of the transmission gear of the present invention;
fig. 5 is a sectional view of the transmission gear of the present invention.
Description of the symbols of the drawings:
1. a gear plug body; 2. wear-resistant steel balls; 3. adjusting the shaft body; 4. a transmission gear.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, so that those skilled in the art can easily implement the present invention.
Example 1: as shown in fig. 1, the utility model is provided with a gear top body 1, a wear-resistant steel ball 2, an adjusting shaft body 3 and a transmission gear 4; the gear ejecting head body 1 is pressed into a mounting hole of an adjusting shaft body 3, the adjusting shaft body 3 is made of 45#, the wear-resistant steel ball 2 is in friction with the side surface of a transmission gear 4, the transmission gear is made of 38CrMoAl through the special structural design of the transmission gear 4, the contact surface of the transmission gear and the wear-resistant steel ball is a concave-convex surface, the height difference of a high point and a low point is 2mm, the concave surface and the convex surface are in central symmetry, the joint surface of the concave-convex surface is in fillet transition, and the wear-resistant steel ball 2 is ensured to be always in contact with the side; therefore, the reciprocating motion of the gear is realized in the rotating process of the gear, and the working state of the lubricating oil pump is met. The bottom angle of the blind hole of the gear plug body 1 is 120 degrees, and the material of the gear plug body 1 is 1Cr18Ni9 Ti.
The utility model improves the original integral structure gear top into the assembly gear top structure; the wear-resistant steel ball 2 is pressed into the gear top body 1, the material Gr15 of the wear-resistant steel ball 2 is used for replacing the original machining spherical structure with the standard wear-resistant steel ball 2, the machinability of a workpiece is greatly improved, the strength and the wear resistance of the wear-resistant steel ball 2 are obviously improved compared with those of the original ball head, the purchase cost is low, the machining difficulty of the gear top body 1 is reduced, and the cutter cost, the machining cost and the heat treatment cost are obviously improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, as various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the scope defined by the claims of the present invention shall be within the protection scope of the present invention.
Claims (7)
1. An oil pump transmission mechanism is provided with an adjusting shaft body, a gear ejection head body and a transmission gear, wherein the gear ejection head body is in interference fit with the adjusting shaft body, and is in direct contact with the transmission gear; the wear-resistant steel ball is always attached to the side face of the transmission gear.
2. The oil pump transmission of claim 1, wherein the gear top body blind hole bottom angle is 120 °.
3. The oil pump transmission mechanism as claimed in claim 2, wherein the gear plug body is made of 1Cr18Ni9 Ti.
4. The oil pump transmission mechanism as claimed in claim 1, wherein said wear-resistant steel balls are Gr 15.
5. The oil pump transmission mechanism according to claim 1, wherein the transmission gear structure is a special-shaped structure, and the contact surface of the transmission gear and the wear-resistant steel ball is a concave-convex surface.
6. The oil pump transmission of claim 5, wherein the transmission gear is 38 CrMoAl.
7. The oil pump transmission mechanism as claimed in claim 1, wherein the adjusting shaft body is 45 #.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393403.8U CN212004156U (en) | 2020-03-25 | 2020-03-25 | Oil pump transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393403.8U CN212004156U (en) | 2020-03-25 | 2020-03-25 | Oil pump transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004156U true CN212004156U (en) | 2020-11-24 |
Family
ID=73430742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020393403.8U Active CN212004156U (en) | 2020-03-25 | 2020-03-25 | Oil pump transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004156U (en) |
-
2020
- 2020-03-25 CN CN202020393403.8U patent/CN212004156U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Zhendong Inventor after: Zhang Yinhu Inventor after: Tan Fuming Inventor after: Dai Yongqian Inventor before: Tan Fuming Inventor before: Xie Zhendong Inventor before: Zhang Yinhu Inventor before: Dai Yongqian |