CN212130771U - Powder metallurgy oil pump rotor - Google Patents
Powder metallurgy oil pump rotor Download PDFInfo
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- CN212130771U CN212130771U CN202020650151.2U CN202020650151U CN212130771U CN 212130771 U CN212130771 U CN 212130771U CN 202020650151 U CN202020650151 U CN 202020650151U CN 212130771 U CN212130771 U CN 212130771U
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- rotor
- oil pump
- powder metallurgy
- mounting hole
- connecting cover
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Abstract
The utility model discloses a powder metallurgy oil pump rotor, include the external rotor and through pivot movable mounting at the internal rotor of external rotor, the inner rotor center runs through and has seted up the mounting hole, the internal rotor front surface is located the mounting hole periphery and is provided with the connecting cover, the inside lateral wall of mounting hole lateral wall and connecting cover all with pivot lateral wall sliding contact, the spout has been seted up to pivot lateral wall front end, slidable mounting has the fixture block in the spout, the fixture block is connected with compression spring with the spout bottom, the chamfer is handled downwards to fixture block top front end, the connecting cover lateral wall runs through and sets up a plurality ofly and fixture block assorted dismantlement groove, it is provided with the quick detach subassembly to slide around the dismantlement inslot. The utility model has the advantages of simple and reasonable design, abandoned traditional key or the method of selling the fixed inner rotor, made things convenient for people to install and dismantle the internal rotor to make things convenient for people to maintain and change the internal rotor greatly, the practicality is strong.
Description
Technical Field
The utility model relates to an oil pump technical field especially relates to a powder metallurgy oil pump rotor.
Background
Gear and rotor oil pumps are widely used in internal combustion engines. The gear type oil pump has the advantages of simple structure, convenient processing, reliable work, long service life and high oil pressure of the pump, and is widely applied. The rotor of the rotor pump has a complex shape, is pressed by powder metallurgy, has the same advantages of a gear pump, but has compact structure and small volume, and is more and more applied to internal combustion engines.
However, most of the inner rotors of the existing oil pump are fixedly arranged on the rotating shaft through keys or pins, and when people need to maintain and replace the inner rotors, the inner rotors are inconvenient to disassemble and have certain defects.
Therefore, the powder metallurgy oil pump rotor is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a powder metallurgy oil pump rotor, aim at make things convenient for the internal rotor of people to install and dismantle to make things convenient for the internal rotor of people to maintain and change.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
the utility model provides a powder metallurgy oil pump rotor, includes the external rotor and through the inner rotor of pivot movable mounting in the external rotor, the inner rotor center runs through and has seted up the mounting hole, the inner rotor front surface is located the mounting hole periphery and is provided with the connecting cover, the inside lateral wall of mounting hole lateral wall and connecting cover all with pivot lateral wall sliding contact, the spout has been seted up to pivot lateral wall front end, slidable mounting has the fixture block in the spout, the fixture block is connected with compression spring with the spout bottom, the chamfer is handled downwards to fixture block top front end, the connecting cover lateral wall runs through and sets up a plurality ofly and fixture block assorted dismantlement groove, it is provided with the quick detach subassembly to slide around the.
Preferably, in the powder metallurgy oil pump rotor, the quick release assembly includes a top post slidably disposed in the disassembly groove in a front-back direction, the top end of the top post is connected to the connection ring, the inner side wall of the connection ring is in sliding contact with the inner side wall of the connection cover, a distance between a top end and a bottom end of the top post is the same as a distance between the top end and the bottom end of the disassembly groove, and the top end of the top post is in contact with the top surface of the fixture block.
Based on the technical characteristics, the connecting ring is pushed backwards, so that the fixture block is separated from the dismounting groove, the inner rotor is dismounted, and the operation is simple.
Preferably, in the powder metallurgy oil pump rotor, the lowest point of the top surface of the fixture block is flush with the highest point of the chute.
Based on the technical characteristics, the lowest point of the top surface of the clamping block is flush with the highest point of the sliding groove, so that the inner rotor can be conveniently installed by people.
Preferably, in the powder metallurgy oil pump rotor, a positioning groove is formed in the periphery of the front surface of the rotating shaft in the backward direction, and a positioning block matched with the positioning groove is arranged on the side wall of the mounting hole.
Based on above-mentioned technical characteristics, the setting of constant head tank and locating piece further makes things convenient for people to carry out the installation of inner rotor.
Preferably, in the powder metallurgy oil pump rotor, a position of the rotating shaft at the rear end of the inner rotor is provided with a limit ring, and an elastic sealing gasket is arranged on the front surface of the limit ring.
Based on above-mentioned technical characteristic, the setting of spacing ring is spacing to interior rotor, and the stability after the installation of inner rotor is promoted in the setting of cooperation elastic seal pad.
Preferably, in the powder metallurgy oil pump rotor, a ball is mounted at the bottom of the top column in a rolling manner.
Based on above-mentioned technical characteristics, the frictional force of fore-set and fixture block top surface is reduced in the setting of ball, makes things convenient for people to carry out the dismantlement of inner rotor.
The utility model has the advantages that:
the utility model has the advantages of simple and reasonable design, abandoned traditional key or the method of selling the fixed inner rotor, made things convenient for people to install and dismantle the internal rotor to make things convenient for people to maintain and change the internal rotor greatly, the practicality is strong.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;
fig. 3 is a schematic view of the positioning block mounting structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-an outer rotor; 2-a rotating shaft; 3-an inner rotor; 4-mounting holes; 5-connecting the cover; 6-a chute; 7-a fixture block; 8-disassembling the groove; 9-a quick release assembly; 10-a top pillar; 11-a connecting ring; 12-positioning grooves; 13-positioning blocks; 14-a stop collar; 15-an elastic sealing gasket; 16-a ball bearing; 17-compression spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment is a powder metallurgy oil pump rotor, including an outer rotor 1 and an inner rotor 3 movably mounted in the outer rotor 1 through a rotating shaft 2, a mounting hole 4 is formed through the center of the inner rotor 3, a connecting cover 5 is disposed on the front surface of the inner rotor 3 at the periphery of the mounting hole 4, the side wall of the mounting hole 4 and the inner side wall of the connecting cover 5 are in sliding contact with the side wall of the rotating shaft 2, a sliding slot 6 is formed at the front end of the side wall of the rotating shaft 2, a fixture block 7 is slidably mounted in the sliding slot 6, a compression spring 17 is connected between the fixture block 7 and the bottom end of the sliding slot 6, the front end of the top of the fixture block 7 is chamfered downwards, a plurality of dismounting slots 8 matched with the fixture block 7 are formed through the side wall of the connecting cover 5, the lowest point of, a positioning groove 12 is backwards arranged on the periphery of the front surface of the rotating shaft 2, a positioning block 13 matched with the positioning groove 12 is arranged on the side wall of the mounting hole 4, the positioning groove 12 and the positioning block 13 are arranged, and further convenience is brought to people for mounting the inner rotor 3, a limiting ring 14 is arranged at the position of the rotating shaft 2, which is positioned at the rear end of the inner rotor 3, the front surface of the limiting ring 14 is provided with an elastic sealing gasket 15, the arrangement of the limiting ring 14 is used for limiting the inner rotor 3, the stability of the inner rotor 3 after mounting is improved by matching with the arrangement of the elastic sealing gasket 15, a quick-release assembly 9 is arranged in the dismounting groove 8 in a front-and-back sliding manner, the quick-release assembly 9 comprises a top post 10 which is arranged in the dismounting groove 8 in a front-and-back sliding manner, the top end of the top post, the top of the top post 10 is inconsistent with the top surface of the clamping block 7, the connecting ring 11 is pushed backwards, the clamping block 7 is separated from the dismounting groove 8, so that the inner rotor 3 is dismounted, the operation is simple, the rolling ball 16 is arranged at the bottom of the top post 10, the friction force between the top post 10 and the top surface of the clamping block 7 is reduced due to the arrangement of the ball 16, and the inner rotor 3 is dismounted conveniently by people.
The utility model discloses a concrete implementation, when using, the installation that needs to carry out inner rotor 3 when people is, only need aim at locating piece 13 constant head tank 12, it is inconsistent with elastic sealing pad 15 to promote inner rotor 3 to inner rotor 3 rear surface backward, can realize inner rotor 3's installation, when people need dismantle inner rotor 3, only need promote go-between 11 backward, drive fore-set 10 with the ejecting dismantlement groove 8 of fixture block 7, then take off inner rotor 3 can, the operation is thus simple, the people are greatly made things convenient for inner rotor 3 to maintain and change, therefore, the clothes hanger is strong in practicability.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A powder metallurgy oil pump rotor is characterized in that: comprises an outer rotor (1) and an inner rotor (3) movably arranged in the outer rotor (1) through a rotating shaft (2), a mounting hole (4) is formed in the center of the inner rotor (3) in a penetrating manner, a connecting cover (5) is arranged on the front surface of the inner rotor (3) and positioned at the periphery of the mounting hole (4), the side wall of the mounting hole (4) and the inner side wall of the connecting cover (5) are in sliding contact with the side wall of the rotating shaft (2), the front end of the side wall of the rotating shaft (2) is provided with a sliding chute (6), a clamping block (7) is arranged in the sliding chute (6) in a sliding way, the bottom ends of the clamping block (7) and the sliding groove (6) are connected with a compression spring (17), the front end of the top of the clamping block (7) is chamfered downwards, the side wall of the connecting cover (5) is provided with a plurality of disassembly grooves (8) matched with the clamping block (7) in a penetrating way, the quick-release component (9) is arranged in the dismounting groove (8) in a front-back sliding manner.
2. The powder metallurgy oil pump rotor of claim 1, wherein: quick detach subassembly (9) slide fore-and-aft and set up fore-and-aft prop (10) in dismantling groove (8), fore-and-aft prop (10) top is connected with go-between (11) jointly, go-between (11) inside wall and connecting cover (5) inside wall sliding contact, the distance that falls the bottom on fore-and-aft prop (10) top is the same with the distance that dismantles groove (8) top to the bottom, fore-and-aft prop (10) top is inconsistent with fixture block (7) top surface.
3. The powder metallurgy oil pump rotor of claim 1, wherein: the lowest point of the top surface of the clamping block (7) is level with the highest point of the sliding groove (6).
4. The powder metallurgy oil pump rotor of claim 1, wherein: the periphery of the front surface of the rotating shaft (2) is backwards provided with a positioning groove (12), and the side wall of the mounting hole (4) is provided with a positioning block (13) matched with the positioning groove (12).
5. The powder metallurgy oil pump rotor of claim 1, wherein: the rotating shaft (2) is provided with a limiting ring (14) at the position of the rear end of the inner rotor (3), and the front surface of the limiting ring (14) is provided with an elastic sealing gasket (15).
6. A powder metallurgy oil pump rotor according to claim 2, characterized in that: and the bottom of the top column (10) is provided with a ball (16) in a rolling way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650151.2U CN212130771U (en) | 2020-04-26 | 2020-04-26 | Powder metallurgy oil pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650151.2U CN212130771U (en) | 2020-04-26 | 2020-04-26 | Powder metallurgy oil pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212130771U true CN212130771U (en) | 2020-12-11 |
Family
ID=73691939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020650151.2U Active CN212130771U (en) | 2020-04-26 | 2020-04-26 | Powder metallurgy oil pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212130771U (en) |
-
2020
- 2020-04-26 CN CN202020650151.2U patent/CN212130771U/en active Active
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