CN215980401U - Piston crankshaft with anti-sticking bearing bush - Google Patents

Abstract

The utility model provides a piston crankshaft with anti-sticking bearing bushes, which relates to the field of crankshaft bearing bushes and comprises an upper bearing bush body and a lower bearing bush body, wherein heat dissipation devices are arranged on the inner walls of the upper bearing bush body and the lower bearing bush body, the outer surfaces of the heat dissipation devices are mutually attached to the inner walls of the upper bearing bush body and the lower bearing bush body, the upper bearing bush body and the lower bearing bush body are fixedly connected with the heat dissipation devices, through holes are formed in the heat dissipation devices, the through holes are circumferentially arrayed in the heat dissipation devices, and the upper bearing bush body, the lower bearing bush body and the heat dissipation devices are communicated through the through holes. Set up heat abstractor between the axle bush body and axle bush piece, the in-process of frictioning again will have lubricating oil between upper shaft tile and the lower axle bush piece, to long-time friction production of heat, can replace the heat of lubricating oil through the through-hole, at the in-process of work, lubricating oil can be at the louvre reciprocating motion on fin surface, reaches radiating effect, but guarantees the life of axle bush, has prevented gluing between axle bush and the lubricating oil, has improved the working effect.

Description

Piston crankshaft with anti-sticking bearing bush

Technical Field

The utility model relates to the technical field of crankshaft bearing bushes, in particular to an anti-sticking piston crankshaft for a bearing bush.

Background

The bearing bush is a part of the sliding bearing, which is contacted with the journal, is in a bush-shaped semi-cylindrical surface, is very smooth, is generally made of wear-resistant materials such as bronze, antifriction alloy and the like, can be made of wood, engineering plastics or rubber under special conditions, has an integral type and a split type, is generally called as a shaft sleeve, has an oil groove or no oil groove, and is in clearance fit with the journal and generally does not rotate along with the shaft.

When the compressor crankshaft normally works, a very thin oil film is required between the bearing bush and the rotating shaft to play a role in lubrication, if lubrication is poor, direct friction exists between the bearing bush and the rotating shaft, the friction can generate very high temperature, and the phenomenon of adhesion can occur, so that the service life of the bearing bush is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a piston crankshaft with anti-sticking bearing shoes.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an antiseized glutinous piston crankshaft of bearing bush, includes the bent axle body, bent axle body surface cover has upper bearing bush body and lower bearing bush body, the inner wall of upper bearing bush body and lower bearing bush body is equipped with heat abstractor, and heat abstractor's surface and the inner wall of upper bearing bush body, lower bearing bush body laminate each other, and the upper bearing bush body, the lower bearing bush body all with heat abstractor fixed connection, the inside through-hole of having seted up of heat abstractor, and through-hole circumference array is inside heat abstractor, and upper bearing bush body, the lower bearing bush body and heat abstractor pass through the through-hole intercommunication.

Preferably, the inner wall of the heat dissipation device is provided with an upper shaft tile and a lower bearing pad, the upper shaft tile and the lower shaft tile are fixedly connected with the heat dissipation device, and the upper shaft tile and the lower shaft tile correspond to the upper shaft tile body and the lower bearing pad body respectively.

Preferably, the heat dissipation device is internally provided with heat dissipation fins, the heat dissipation fins are circumferentially arrayed inside the heat dissipation device, and the heat dissipation fins are fixedly arranged inside the heat dissipation device.

Preferably, the surface of the heat radiating fin is provided with heat radiating holes, and the heat radiating holes are arrayed on the surface of the heat radiating fin in a rectangular mode.

Preferably, the interior of the heat dissipation device is hollow, the cross section of the heat dissipation device is circular, and the surface of the through hole in the heat dissipation device is provided with a small hole.

Advantageous effects

According to the utility model, the heat dissipation device is adopted, the heat dissipation device is arranged between the bearing bush body and the bearing bush piece, lubricating oil enters the heat dissipation device through the through hole between the lower bearing bush body and the heat dissipation device, in the process of re-friction, lubricating oil can be arranged between the upper shaft bearing bush piece and the lower bearing bush piece, heat can be generated for long-time friction, the heat of the lubricating oil can be replaced through the heat dissipation device and the through hole, in the working process, the lubricating oil can reciprocate in the heat dissipation hole on the surface of the heat dissipation fin, the heat dissipation effect is achieved, meanwhile, the lubricating oil in the using process can also enter the heat dissipation fin through the through hole, the heat dissipation effect is achieved, the service life of the bearing bush is ensured, the adhesion between the bearing bush and the lubricating oil is prevented, and the working effect is improved.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

fig. 3 is a cross-sectional view of a heat sink in the present invention.

Illustration of the drawings:

1. an upper bearing bush body; 2. an upper shaft tile; 3. a lower shoe body; 4. a lower shaft tile; 5. a heat sink; 6. A through hole; 7. a heat sink; 8. heat dissipation holes; 9. a crankshaft body.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-3, an anti-sticking piston crankshaft of bearing bush comprises a crankshaft body 9, an upper bearing bush body 1 and a lower bearing bush body 3 are sleeved on the surface of the crankshaft body 9, heat dissipation devices 5 are arranged on the inner walls of the upper bearing bush body 1 and the lower bearing bush body 3, the outer surfaces of the heat dissipation devices 5 are mutually attached to the inner walls of the upper bearing bush body 1 and the lower bearing bush body 3, the upper bearing bush body 1 and the lower bearing bush body 3 are fixedly connected with the heat dissipation devices 5, through holes 6 are formed in the heat dissipation devices 5, the through holes 6 are circumferentially arrayed inside the heat dissipation devices 5, and the upper bearing bush body 1, the lower bearing bush body 3 and the heat dissipation devices 5 are communicated through the through holes 6.

The inner wall of the heat dissipation device 5 is provided with an upper shaft tile 2 and a lower bearing tile 4, the upper shaft tile 2, the lower shaft tile 4 is fixedly connected with the heat dissipation device 5, the upper shaft tile 2, the lower bearing tile 4 is respectively corresponding to the upper shaft tile body 1 and the lower bearing tile body 3, the heat dissipation device 5 is internally provided with a heat dissipation sheet 7, the heat dissipation sheet 7 is circumferentially arrayed inside the heat dissipation device 5, the heat dissipation sheet 7 is fixedly installed inside the heat dissipation device 5, heat dissipation holes 8 are formed in the surface of the heat dissipation sheet 7, the rectangular arrays of the heat dissipation holes 8 are formed in the surface of the heat dissipation sheet 7, the heat dissipation device 5 is internally hollow, the cross section of the heat dissipation device 5 is circular, and small holes are formed in the surface of a through hole 6 inside the heat dissipation device 5.

The working principle of the utility model is as follows: adopt the heat dissipating double-fuselage 5, set up the heat dissipating double-fuselage 5 between bush block and the axle bush piece, the original lubricating oil enters the lower bush piece 4 directly through the lower bush block 3 when being direct, while the crankshaft moves, will bring the friction of the flannel lubricating oil, coat the whole upper shaft tile 2 and lower bush piece 4, while adding the heat dissipating double-fuselage 5, the lubricating oil enters the inside of the heat dissipating double-fuselage 5 through the via hole 6 between lower bush block 3 and heat dissipating double-fuselage 5, in the course of the friction again, there will be lubricating oil between upper shaft tile 2 and lower bush piece 4, to producing the heat for long-time friction, can replace the heat of the lubricating oil through heat dissipating double-fuselage 5 and via hole 6, in the course of working, the lubricating oil will be in 8 louvres on the surface of the air-cooling fin 7 and reciprocate, achieve the radiating effect, will enter the air-cooling fin 7 too through via the via hole 6 to the lubricating oil in the use at the same time, the radiating effect is achieved, the service life of the bearing bush is guaranteed, the bearing bush and lubricating oil are prevented from being adhered, and the working effect is improved.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides an antiseized glutinous piston crankshaft of bearing bush, includes bent axle body (9), its characterized in that: the crankshaft body (9) is sleeved with an upper bearing bush body (1) and a lower bearing bush body (3), the inner walls of the upper bearing bush body (1) and the lower bearing bush body (3) are provided with heat dissipation devices (5), the outer surfaces of the heat dissipation devices (5) are attached to the inner walls of the upper bearing bush body (1) and the lower bearing bush body (3), the upper bearing bush body (1) and the lower bearing bush body (3) are fixedly connected with the heat dissipation devices (5), through holes (6) are formed in the heat dissipation devices (5), the through holes (6) are circumferentially arrayed inside the heat dissipation devices (5), and the upper bearing bush body (1), the lower bearing bush body (3) and the heat dissipation devices (5) are communicated with each other through the through holes (6).

2. The anti-sticking bearing-bush piston crankshaft of claim 1, wherein: the inner wall of the heat dissipation device (5) is provided with an upper shaft tile (2) and a lower shaft tile (4), the upper shaft tile (2) and the lower shaft tile (4) are fixedly connected with the heat dissipation device (5), and the upper shaft tile (2) and the lower shaft tile (4) respectively correspond to the upper shaft tile body (1) and the lower shaft tile body (3).

3. The anti-sticking bearing-bush piston crankshaft of claim 1, wherein: the radiating fin (7) is arranged inside the radiating device (5), the radiating fins (7) are circumferentially arrayed inside the radiating device (5), and the radiating fins (7) are fixedly installed inside the radiating device (5).

4. The anti-sticking bearing-bush piston crankshaft of claim 3, wherein: radiating holes (8) are formed in the surface of the radiating fin (7), and the radiating holes (8) are arrayed on the surface of the radiating fin (7) in a rectangular mode.

5. The anti-sticking bearing-bush piston crankshaft of claim 1, wherein: the interior of the heat dissipation device (5) is hollow, the cross section of the heat dissipation device (5) is circular, and small holes are formed in the surface of the through hole (6) in the heat dissipation device (5).

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