CN212455188U

CN212455188U - Automobile crankshaft sliding device

Info

Publication number: CN212455188U
Application number: CN202020614560.7U
Authority: CN
Inventors: 姜素珍; 姜亚芳; 于正英
Original assignee: Jiangsu Yifei Gear Co ltd
Current assignee: Jiangsu Yifei Gear Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-02-02
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a car bent axle slider, including the bearing frame main part, the inner wall of bearing frame main part is provided with the bush ring, the bush ring is pieced together two parts and is formed by upper bearing bush and lower bearing bush about, the surface at the bent axle pole is put to the bush ring cover, the surface middle part rigidity of upper bearing bush is provided with first oil portion, the internal surface middle part rigidity of upper bearing bush is provided with second oil portion, and first oil portion and second oil portion link up each other, the upper surface middle part position of bearing frame main part is provided with the oil filler point, and the oil filler point communicates to the inside of first oil portion, the interior outer surface structure of lower bearing bush sets up the same with the interior outer surface structure of upper bearing bush. The utility model discloses in, the inside and outside surface of axle bush all is equipped with oil portion, and oil portion establishes to link up, all can slide between axle bush and bent axle and the bearing frame inner wall, reduces bent axle and axle bush inner wall degree of friction to reduce the influence of wearing and tearing between bent axle and axle bush, increase axle bush slip operation life-span.

Description

Automobile crankshaft sliding device

Technical Field

The utility model relates to a bent axle field especially relates to an automobile crankshaft slider.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. The crankshaft is usually sliding bearing in sliding operation.

In current bent axle slip operation, all set up to slide bearing and slide, slide bearing realizes the relative slip between bent axle and the axle bush through forming the oil film between axle bush inner wall and bent axle, but when the oil pressure is unstable or bent axle rocks, the bent axle will cause wearing and tearing to the axle bush inner wall in the short time, can lead to the oil film unstability to flow after the axle bush wearing and tearing to form vicious circle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an automobile crankshaft sliding device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an automobile crankshaft sliding device, includes the bearing frame main part, the inner wall of bearing frame main part is provided with the bearing bush ring, the bearing bush ring is pieced together by two parts about upper bearing bush and the lower bearing bush and forms, the bearing bush ring cover is put at the surface of bent axle pole, the fixed first oil portion that is provided with in surface middle part position of upper bearing bush, the fixed second oil portion that is provided with in internal surface middle part position of upper bearing bush, and first oil portion and second oil portion link up each other, the upper surface middle part position of bearing frame main part is provided with the oil filler point, and the oil filler point communicates to the inside of first oil portion, the inside and outside surface texture of lower bearing bush sets up the same with the inside and outside surface texture of upper.

As a further description of the above technical solution:

the outer surface of the bearing bush ring is attached to the inner wall of the bearing seat main body, the outer diameter of the bearing bush ring is the same as the inner diameter of the bearing seat main body, the inner surface of the bearing bush ring is attached to the outer surface of the crankshaft rod, and the inner diameter of the bearing bush ring is the same as the outer diameter of the crankshaft rod.

As a further description of the above technical solution:

the outer surface of the upper bearing bush is fixedly coated with an antifriction layer, the inner surface and the outer surface of the upper bearing bush are coated in the same way, and the structure arrangement of the inner surface and the outer surface of the lower bearing bush is the same as that of the upper bearing bush.

As a further description of the above technical solution:

the oil hole is fixedly arranged in the middle of the upper bearing bush, the oil hole penetrates through the first oil part and the second oil part, and the middle of the lower bearing bush is identical to the upper bearing bush in structure.

As a further description of the above technical solution:

the bearing seat comprises a bearing seat body and is characterized in that an inner wall of the bearing seat body is fixedly coated with an antifriction layer, and the antifriction layer is the same as the inner and outer surface coating materials of the upper bearing bush and the lower bearing bush.

As a further description of the above technical solution:

the bearing seat main body is composed of a lower bearing seat and an upper bearing seat, connecting holes are correspondingly formed in the joint surfaces of the lower bearing seat and the upper bearing seat, and the lower bearing seat and the upper bearing seat are rotatably connected in the connecting holes through fixing studs to achieve fixed connection.

The utility model discloses following beneficial effect has:

1. the utility model discloses among the car bent axle slider, the internal surface of axle bush and the equal fixed oil portion that is provided with of surface, and both sides oil portion sets up to lining up, realizes all slidable between axle bush and bent axle and the bearing frame inner wall, reduces bent axle and axle bush inner wall degree of friction to reduce the influence of wearing and tearing between bent axle and axle bush, increase axle bush slip operation life-span.

2. The utility model discloses among the car bent axle slider, the bearing frame all sets up to dock with the axle bush to ensure and dismantle with the simple and easy installation between the bent axle pole, the later stage bearing of being convenient for damages the maintenance replacement.

Drawings

FIG. 1 is a sectional side view of a connection portion of an automotive crankshaft slide;

FIG. 2 is a front sectional view of an upper bearing shell of an automotive crankshaft slide assembly;

FIG. 3 is a front view of an automotive crankshaft slide;

FIG. 4 is a top view of an automotive crankshaft slide.

Illustration of the drawings:

1. a bearing housing main body; 2. a lower bearing seat; 3. an upper bearing seat; 4. an upper bearing bush; 5. a lower bearing bush; 6. an oil filler hole; 7. a first oil portion; 8. a second oil portion; 9. an oil through hole; 10. an anti-friction layer; 11. fixing the stud; 12. a crankshaft rod; 13. bearing ring.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: an automobile crankshaft sliding device comprises a bearing seat main body 1, wherein a bearing bush ring 13, namely an internal bearing bush structure, is arranged on the inner wall of the bearing seat main body 1, the bearing bush ring 13 is formed by splicing an upper bearing bush 4 and a lower bearing bush 5 up and down, the simple connection operation with a crankshaft rod 12 is realized, the bearing bush ring 13 is sleeved on the outer surface of the crankshaft rod 12, a first oil part 7 is fixedly arranged in the middle of the outer surface of the upper bearing bush 4 and provides friction lubrication between the upper bearing bush 4 and the inner wall of the bearing seat main body 1, a second oil part 8 is fixedly arranged in the middle of the inner surface of the upper bearing bush 4 and provides friction lubrication between the upper bearing bush 4 and the outer surface of the crankshaft rod 12, the first oil part 7 and the second oil part 8 are communicated with each other, an oil filling hole 6 is arranged in the middle of the upper surface of the bearing seat main body 1 and provides oil filling operation inside, the oil filling hole 6 is communicated with the inside of the first oil part 7, the, the structure is ensured to be uniform.

The outer surface of a bearing bush ring 13 is attached to the inner wall of a bearing seat main body 1, the outer diameter of the bearing bush ring 13 is the same as the inner diameter of the bearing seat main body 1, oil leakage is prevented, the inner surface of the bearing bush ring 13 is attached to the outer surface of a crankshaft rod 12, the inner diameter of the bearing bush ring 13 is the same as the outer diameter of the crankshaft rod 12, oil leakage is prevented, the outer surface of an upper bearing bush 4 is fixedly coated with an anti-friction layer 10, the inner surface and the outer surface of the upper bearing bush 4 are coated with the same coatings, the inner and outer surface structures of a lower bearing bush 5 are the same as the upper bearing bush 4, friction loss reduction of each surface is guaranteed, an oil through hole 9 is fixedly arranged at the middle position of the upper bearing bush 4, the oil through hole 9 penetrates through the first oil part 7 and the second oil part 8, the middle position structure of the lower bearing bush 5 is the same as the upper bearing bush 4, the inner wall of the bearing seat main body, the friction loss of the friction surface is guaranteed, the bearing seat main body 1 is composed of a lower bearing seat 2 and an upper bearing seat 3, the premise is provided for simple connection with a bearing rod 12, connecting holes are correspondingly formed in the connection surfaces of the lower bearing seat 2 and the upper bearing seat 3, and the lower bearing seat 2 and the upper bearing seat 3 are fixedly connected in the connecting holes through the fixed stud 11 in a switching mode.

The working principle is as follows: in the slide bearing that the bent axle slided and sets up, the surface of bearing bush ring 3 is provided with first oil portion 7, the internal surface is provided with second oil portion 8, and both sides oil portion sets up to link up through oil through hole 9, after 6 oiling from oil filler point, realize all slidable between bearing bush ring 13 and bent axle 12 and the bearing frame main part 1 inner wall, and all be provided with antifriction layer 10 between the glide plane, reduce

bent axle

12 and 13 inner wall friction degree of bearing bush ring, thereby reduce the influence of wearing and tearing between bent axle 12 and bearing bush ring 13, increase bearing bush ring 13 slip operation life, ensure that bent axle 12 can normally slide for a long time.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an automobile crankshaft slider, includes bearing frame main part (1), its characterized in that: the bearing seat is characterized in that a bearing bush ring (13) is arranged on the inner wall of the bearing seat main body (1), the bearing bush ring (13) is formed by assembling an upper bearing bush (4) and a lower bearing bush (5) in a split mode, the bearing bush ring (13) is sleeved on the outer surface of a crankshaft rod (12), a first oil portion (7) is fixedly arranged in the middle of the outer surface of the upper bearing bush (4), a second oil portion (8) is fixedly arranged in the middle of the inner surface of the upper bearing bush (4), the first oil portion (7) and the second oil portion (8) are communicated with each other, an oil filling hole (6) is formed in the middle of the upper surface of the bearing seat main body (1), the oil filling hole (6) is communicated to the inside of the first oil portion (7), and the inner surface structure and the outer surface of the lower bearing bush (5) are identical to the inner surface and the.

2. The automotive crankshaft sliding device of claim 1, wherein: the outer surface of the bearing bush ring (13) is attached to the inner wall of the bearing seat main body (1), the outer diameter of the bearing bush ring (13) is the same as the inner diameter of the bearing seat main body (1), the inner surface of the bearing bush ring (13) is attached to the outer surface of the crankshaft rod (12), and the inner diameter of the bearing bush ring (13) is the same as the outer diameter of the crankshaft rod (12).

3. The automotive crankshaft sliding device of claim 1, wherein: the outer surface of the upper bearing bush (4) is fixedly coated with an antifriction layer (10), the inner surface and the outer surface of the upper bearing bush (4) are coated in the same way, and the inner surface structure and the outer surface structure of the lower bearing bush (5) are arranged in the same way as the upper bearing bush (4).

4. The automotive crankshaft sliding device of claim 1, wherein: the oil-gas bearing is characterized in that an oil through hole (9) is fixedly formed in the middle of the upper bearing bush (4), the oil through hole (9) penetrates through the first oil portion (7) and the second oil portion (8), and the middle of the lower bearing bush (5) is identical to the upper bearing bush (4) in position structure.

5. The automotive crankshaft sliding device of claim 1, wherein: the bearing seat is characterized in that an antifriction layer (10) is fixedly coated on the inner wall of the bearing seat main body (1), and the antifriction layer (10) is the same as the inner and outer surface coating materials of the upper bearing bush (4) and the lower bearing bush (5).

6. The automotive crankshaft sliding device of claim 1, wherein: the bearing seat main body (1) is composed of a lower bearing seat (2) and an upper bearing seat (3), connecting holes are correspondingly formed in the joint surfaces of the lower bearing seat (2) and the upper bearing seat (3), and the lower bearing seat (2) and the upper bearing seat (3) are connected in the connecting holes in a switching mode through fixing studs (11) to achieve fixed connection.