CN218845009U

CN218845009U - Oil pump is with dismantling support portion tensioning ware that leans on

Info

Publication number: CN218845009U
Application number: CN202223421602.3U
Authority: CN
Inventors: 相华; 陈亮
Original assignee: Shanghai Hantong Automobile Parts Co ltd
Current assignee: Shanghai Hantong Automobile Parts Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-11
Anticipated expiration: 2032-12-20

Abstract

The application discloses oil pump is with dismantling to support portion tensioning ware relates to the field of engine accessories, and it includes the main part, the main part is the setting of fan ring form, and keeps away from the terminal surface in axle center and is used for supplying the chain to support and support, the mounting hole has still been seted up to the main part, the mounting hole is located axial a side end face of main part, just the mounting hole runs through the main part sets up, the terminal surface that the main part is close to the chain still is equipped with supports and supports portion, support portion with the connection can be dismantled to the main part. The chain is abutted against the abutting part to move, the abutting part is abraded after long-term use, and the chain can be continuously used only by replacing the abutting part, so that the cost is lower compared with the replacement of the whole tensioner.

Description

Detachable abutting part tensioner for oil pump

Technical Field

The present application relates to the field of engine accessories, and more particularly, it relates to a detachable abutment tensioner for an oil pump.

Background

The oil pump is a part of an engine lubricating system, and is used for increasing the oil to a certain pressure and then pumping the oil to the moving surfaces of various parts of the engine. The oil pump structure can be divided into a gear type and a rotor type, and the oil pump is usually driven by a chain. To prevent the chain from loosening during long-term use, a tensioner is used

Chinese utility model patent like patent publication No. CN208203379U, including the tensioning ware guide rail, the tensioning ware guide rail press the oil pump chain to the inboard from the outside, the tensioning ware in still be equipped with the tensioning ware card, the tensioning ware card be spring steel sheet, the elasticity that its produced is used on the tensioning ware guide rail, produces the tensile force of oil pump chain.

In actual use, the chain rubs the tensioner guide rail for a long time, so that the tensioner guide rail is easily abraded, the use is affected, but the whole tensioner is replaced at a high cost and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the higher problem of tensioning ware wearing and tearing replacement cost, this application provides an oil pump is with dismantling butt portion tensioning ware.

The application provides an oil pump is with dismantling to support portion tensioning ware adopts following technical scheme:

the utility model provides an oil pump is with dismantling to support portion tensioning ware, includes the main part, the main part is the setting of fan ring form, and keeps away from the terminal surface in axle center and be used for supplying the chain to support and lean on, the mounting hole has still been seted up to the main part, the mounting hole is located the axial terminal surface of main part, just the mounting hole runs through the main part sets up, the terminal surface that the main part is close to the chain still is equipped with supports and supports portion, support portion with the connection can be dismantled to the main part.

Through above-mentioned technical scheme, the main part is close to the terminal surface of chain one side and can dismantle and be connected with and lean on the portion, and the chain supports to lean on to remove on leaning on the portion, and the portion wearing and tearing are leaned on in the long-term back of using, only change to lean on the portion can continue to use, more change tensioning ware whole, and the cost is lower.

Optionally, the supporting part is provided with a fixing part at one end along the length direction of the chain, the fixing part is formed by bending the supporting part, and the main body is correspondingly arranged at one end along the length direction of the chain and is used for being embedded with the fixing part.

Through above-mentioned technical scheme, support portion one end bending type becomes the fixed part, and the main part corresponds the setting, and the fixed part forms fixedly with the main part gomphosis, and the restriction supports to support the portion and removes along chain length direction on the main part.

Optionally, the supporting part is kept away from along the length direction of the chain one end of the fixing part is further provided with a limiting protrusion, the end face of the main body close to the chain is provided with a limiting groove for the limiting protrusion to be embedded in, and the limiting protrusion is embedded in the limiting groove and used for limiting the movement of the supporting part.

Through above-mentioned technical scheme, spacing protruding embedding spacing groove, spacing protruding and fixed part cooperation further play the fixed action to supporting the portion, and the restriction supports to drop from the main part by the portion.

Optionally, the abutting portion is used for abutting against the end face of the chain and forming a limiting portion along two ends of the main body in the axial direction in a protruding mode, and the chain is embedded into the two limiting portions and used for limiting the chain to move along the main body in the axial direction.

Through above-mentioned technical scheme, the terminal surface that supports the portion and is close to the chain forms spacing portion along the axial both ends edge bulge of main part, and the chain imbeds the region between two spacing portions and supports and support on supporting the portion, and spacing portion restriction chain is along the axial removal of main part.

Optionally, a torsion spring is further fixed in the mounting hole, one end of the torsion spring is used for being fixedly connected with an external structure, the other end of the torsion spring is abutted against one end, far away from the mounting hole, of the main body along the length direction of the chain, and elasticity of the torsion spring is used for driving the main body to rotate around the mounting hole.

Through above-mentioned technical scheme, the torsional spring sets up in the mounting hole, and one end is connected fixedly with exterior structure, and one end supports and leans on main part one end, and the torsional spring drives the main part and rotates around the mounting hole so that support to lean on the portion and support tight chain for the chain can keep the tensioning state at any time.

Optionally, the main part corresponds the torsional spring supports to lean on the department shaping to have the constant head tank, the embedding of torsional spring tip the constant head tank sets up.

Through the technical scheme, the torsional spring supports and leans on the one end embedding constant head tank in the main part for can not take place to slide when the torsional spring drives the main part and rotates, make the main part can be more stable support by the terminal surface of main part.

Optionally, the main body and the abutting portion are integrally formed.

Through above-mentioned technical scheme, main part and support portion integrated into one piece for the main part and the manufacturing cost who supports portion reduce, improve production rate simultaneously.

Optionally, the abutting portion is made of polyethylene.

Through above-mentioned technical scheme, the polyethylene material has good impact resistance and self-lubricating nature for support to the portion more wear-resisting, increase the life who supports to the portion.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) The abutting part is detachably connected with the main body through the abutting part, the chain abuts against the abutting part, the abutting part is replaced after long-term use and abrasion, and compared with the original replacement of the whole tensioner, the cost is lower;

(2) The fixing part and the limiting bulge are embedded and fixed with the corresponding structure of the main body through the fixing part and the limiting bulge so as to realize the connection and fixation between the main body and the abutting part;

(3) Through the torsional spring, torsional spring one end is connected fixedly with exterior structure, and one end is supported and is leaned on main part one end, and the torsional spring drives the main part and rotates around the mounting hole so that support the portion of leaning on and support tight chain for the chain can keep the tensioning state at any time.

Drawings

Fig. 1 is an overall schematic view of the embodiment.

Fig. 2 is an exploded view of the embodiment.

Reference numerals: 1. a main body; 2. an abutting portion; 3. mounting holes; 4. a torsion spring; 5. positioning a groove; 6. a fixed part; 7. a limiting bulge; 8. a limiting groove; 9. a limiting part.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses an oil pump is with dismantling butt portion tensioning ware.

Example (b):

a detachable abutting part tensioner for an oil pump is disclosed, and referring to fig. 1, the tensioner comprises a main body 1, the main body 1 is integrally formed and is in a fan ring shape, the main body 1 and the end surface of the main body 1 far away from an axis are also detachably connected with an abutting part 2, the abutting part 2 is integrally formed by polyethylene, the abutting part 2 is arranged by being attached to the end surface of the main body 1, and the abutting part 2 is far away from the end surface of the main body 1 and is used for abutting against a chain; mounting hole 3 has still been seted up to 1 fan ring terminal surfaces of main part, and mounting hole 3 runs through main part 1 along 1 fan ring terminal surface direction of perpendicular to main part, is equipped with torsional spring 4 in the

mounting hole

3, 4 one ends of torsional spring and exterior structure fixed connection, and the other end of torsional spring 4 supports and leans on the terminal surface of leaning on portion 2 to keep away from in main part 1, and the elasticity of torsional spring 4 is used for driving main part 1 and rotates around mounting hole 3. In order to prevent 4 tip of torsional spring from sliding at 1 terminal surface of main part and influencing 1 rotation of main part, the 1 terminal surface of main part corresponds torsional spring 4 and supports to lean on the department and still seted up

constant head tank

5, 4 tip embedding constant head tank 5 of torsional spring in order to fix a position.

Referring to fig. 1 and 2, one end of the abutting portion 2 along the circumferential direction of the main body 1 is bent to form a fixing portion 6, the fixing portion 6 is U-shaped, one end of the main body 1 along the circumferential direction, which is close to the fixing portion 6, is correspondingly arranged, and the fixing portion 6 is embedded into the main body 1 to limit the abutting portion 2 from falling off from the main body 1; the one end that fixed part 6 was kept away from to support portion 2 has spacing arch 7 still to the shaping, and the one end that fixed part 6 was kept away from to the terminal surface that main part 1 kept away from the axle center corresponds sets up spacing groove 8, and spacing arch 7 embedding spacing groove 8 forms the interference with the cooperation of fixed part 6 and inlays the cooperation, and the restriction supports to support portion 2 and drops from main part 1.

The terminal surface that leans on portion 2 to keep away from main part 1 is protruding along the both ends edge of main part 1 circumference and is formed spacing portion 9, and spacing portion 9 extends along main part 1 circumference, and the chain imbeds between two spacing portions 9 and moves along spacing portion 9 extending direction, and spacing portion 9 supports and leans on the chain both sides to be used for restricting the chain along main part 1 axial displacement, reduces the probability that the chain drops from leaning on portion 2.

The working principle of the embodiment is as follows:

the end face, close to the chain, of the main body 1 is detachably connected with the abutting portion 2, the fixing portion 6 and the limiting protrusion 7 are formed at two ends of the abutting portion 2 respectively, the main body 1 is arranged correspondingly, the fixing portion 6 and the limiting protrusion 7 are matched to form interference fit, fixing between the abutting portion 2 and the main body 1 is achieved, the chain abuts against the end face, far away from the main body 1, of the abutting portion 2, after the abutting portion 2 is used for a long time and is worn, the abutting portion 2 can be continuously used after being replaced, and compared with the original replacement of the whole tensioner, the cost is lower; the abutting part 2 protrudes along the edge of two ends of the main body 1 in the axial direction to form limiting parts 9, and the chain is embedded between the two limiting parts 9 and used for limiting the chain to fall off from the abutting part 2; a coil spring is arranged in the mounting hole 3 of the main body 1, and the coil spring drives the main body 1 to rotate around the mounting hole 3 to tightly support the chain, so that the chain is in a tensioning state all the time.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an oil pump is with dismantling butt portion tensioning ware which characterized in that: including main part (1), main part (1) is the setting of fan ring form, and keeps away from the terminal surface in axle center and is used for supplying the chain to support and lean on, mounting hole (3) have still been seted up in main part (1), mounting hole (3) are located main part (1) axial side end face, just mounting hole (3) run through main part (1) sets up, main part (1) is close to the terminal surface of chain and still is equipped with and supports portion (2), support portion (2) with main part (1) can dismantle the connection.

2. The detachable abutting portion tensioner for an oil pump according to claim 1, characterized in that: support portion (2) and be equipped with fixed part (6) along chain length direction's one end, fixed part (6) by support portion (2) bending type becomes, main part (1) along chain length direction's one end correspond set up be used for with fixed part (6) are assembled.

3. The detachable abutting portion tensioner for an oil pump according to claim 2, characterized in that: lean on portion (2) to keep away from along chain length direction the one end of fixed part (6) still is equipped with spacing arch (7), main part (1) is close to the terminal surface of chain and has seted up the confession spacing groove (8) of spacing arch (7) embedding, spacing arch (7) embedding spacing groove (8) are used for the restriction lean on portion (2) to remove.

4. The detachable abutting portion tensioner for an oil pump according to claim 3, characterized in that: the abutting portion (2) is used for abutting against the end face of the chain and along the two ends of the main body (1) in the axial direction in a protruding mode to form limiting portions (9), and the chain is embedded into the two limiting portions (9) and used for limiting the chain to move axially along the main body (1).

5. The detachable abutting portion tensioner for an oil pump according to claim 1, characterized in that: still be fixed with torsional spring (4) in mounting hole (3), torsional spring (4) one end be used for with exterior structure fixed connection, the other end supports and leans on main part (1) is followed the one end that chain length direction kept away from mounting hole (3), the elasticity of torsional spring (4) is used for driving main part (1) winds mounting hole (3) rotate.

6. The detachable abutting portion tensioner for an oil pump according to claim 5, characterized in that: the main part (1) corresponds torsional spring (4) support to lean on the department shaping to have constant head tank (5), torsional spring (4) tip embedding constant head tank (5) set up.

7. The detachable abutting portion tensioner for an oil pump according to claim 1, characterized in that: the main body (1) and the abutting part (2) are integrally molded.

8. The detachable abutting portion tensioner for an oil pump according to claim 1, characterized in that: the abutting part (2) is made of polyethylene.