CN216447311U

CN216447311U - Mosaic type copper alloy self-lubricating composite bearing

Info

Publication number: CN216447311U
Application number: CN202123233661.3U
Authority: CN
Inventors: 方迪江; 方灿根; 方田; 王守业
Original assignee: Zhejiang Cangen Intelligent Technology Co ltd
Current assignee: Zhejiang Cangen Intelligent Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-06
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of self-lubricating alloy bearings, in particular to an embedded copper alloy self-lubricating composite bearing which comprises a bearing seat, a bearing cover and a bearing bush, wherein the bearing cover is arranged at the top of the bearing seat, the bearing bush is arranged in a round hole formed in one side, opposite to the bearing seat, of the bearing cover, an oil groove is formed in the inner side of the bearing bush, an oil inlet communicated with the oil groove is formed in the bearing bush, an oil tank is arranged at the top of the bearing cover, an oil filling port is formed in the top of the oil tank, an oil filling pipe is arranged at the bottom of the oil tank, and the embedded copper alloy self-lubricating composite bearing further comprises a cooling assembly, wherein the cooling assembly comprises a main oil duct formed in the bearing seat at the bottom of the bearing bush and branch oil ducts connected with the two sides of the main oil duct. The utility model can utilize the heat generated by the bearing work to form pressure difference between the lubricating oil in the oil tank and the lubricating oil at the inner side of the bearing bush to form circulating cooling, so that the inner side and the outer side of the bearing can achieve good cooling effect, and the problem that the inner side of the existing bearing adopting a natural cooling mode for heat dissipation has poor heat dissipation effect is solved.

Description

Mosaic type copper alloy self-lubricating composite bearing

Technical Field

The utility model relates to the technical field of self-lubricating alloy bearings, in particular to an embedded copper alloy self-lubricating composite bearing.

Background

Sliding bearings are widely used as basic parts in various machines, and currently, the following cooling methods are generally used for the sliding bearings: natural cooling, forced air cooling, water cooling, pressure lubricating oil cooling and the like.

Adopt the forced air cooling, water-cooling, the cold bearing of pressure lubrication oil is outside power but need provide, after external power breaks down, the bearing can not normal use, and the structure is complicated, the trouble is many, the operation maintenance cost is high, and the natural cooling of the bearing among the prior art is mostly through setting up protruding structure in the bearing outside, reach better radiating effect with the cooling surface that increases the bearing, nevertheless adopt this mode to have better radiating effect to the bearing skin, but to the bearing inside, the radiating effect is relatively poor, therefore, the bearing is at the during operation, can be because of self temperature lasts to rise and reduce life.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an embedded copper alloy self-lubricating composite bearing, which can utilize the heat generated by the working of the bearing to form pressure difference between lubricating oil in an oil tank and the lubricating oil inside a bearing bush to form circulating cooling, so that the inner side and the outer side of the bearing can achieve good cooling effect, and the problem that the inner side of the existing bearing adopting a natural cooling mode for heat dissipation is poor in heat dissipation effect is solved.

(II) technical scheme

In order to realize the purpose that the heat generated by the work of the bearing can be utilized, the pressure difference is formed between the lubricating oil in the oil tank and the lubricating oil on the inner side of the bearing bush to form circulating cooling, so that the inner side and the outer side of the bearing can achieve good cooling effect, the utility model provides the following technical scheme: an embedded copper alloy self-lubricating composite bearing comprises a bearing seat, a bearing cap and a bearing bush, wherein the bearing cap is arranged at the top of the bearing seat, the bearing bush is arranged in a round hole formed at one side of the bearing cap opposite to the bearing seat, an oil groove is formed in the inner side of the bearing bush, an oil inlet communicated with the oil groove is formed in the bearing bush, an oil tank is arranged at the top of the bearing cap, an oil filling port is formed in the top of the oil tank, an oil filling pipe is arranged at the bottom of the oil tank and aligned with the oil inlet on the bearing bush, the embedded copper alloy self-lubricating composite bearing further comprises a cooling assembly, the cooling assembly comprises a main oil duct and branch oil ducts connected with two sides of the main oil duct, the bearing bush is provided with an oil discharge pipe communicated with the oil groove at the inner side of the bearing bush, the bearing seat is provided with an oil outlet which is in plug fit with the oil discharge pipe and is communicated with the main oil duct, the oil discharge pipe is communicated with the main oil duct through the oil outlet hole, one end of the branch oil duct extends to the top of the bearing seat, an oil return pipe opposite to the branch oil duct is arranged at the top of the bearing cover, the bottom end of the oil return pipe is connected with the branch oil duct, and the other end of the oil return pipe is communicated with the oil tank.

Optionally, the cooling module still includes temperature-detecting mechanism, temperature-detecting mechanism includes temperature sensor and controller, a mounting groove has been seted up to the bearing frame bottom, temperature sensor and controller are all installed in this mounting groove, and temperature sensor's sense terminal extends to inside the main oil duct, install in the oiling pipe with the choke valve that the temperature sensor electricity is connected.

Optionally, an oil net is arranged in the main oil duct, the oil net is a semi-cylindrical shape with an opening at one side, one side of the opening of the oil net is right opposite to the oil outlet hole, one end of the main oil duct extends to one side of the bearing seat, and an end cover for sealing the end of the main oil duct is connected to the bearing seat through threads.

Optionally, a rubber gasket is clamped between the bearing seat and the bearing cover, the gasket is located at a joint of the main oil duct and the oil return pipe, and a through hole for communicating the main oil duct with the oil return pipe is formed in the gasket.

Optionally, a cooling pipe is connected between the oil return pipe and the oil tank, and a disc-shaped protruding structure is arranged on the outer wall of the cooling pipe along the length direction of the cooling pipe.

Optionally, the main oil gallery is arranged along the length direction of the bearing block, and the oil discharge pipe, the oil return pipe and the branch oil gallery are all a plurality of oil ducts which are distributed at equal intervals along the length direction of the bearing block.

(III) advantageous effects

Compared with the prior art, the utility model provides an embedded copper alloy self-lubricating composite bearing, which has the following beneficial effects:

1. according to the utility model, by arranging the main oil duct, the branch oil ducts, the oil discharge pipe, the oil outlet and the oil return pipe, and utilizing the principle of expansion with heat and contraction with cold, pressure difference is formed in lubricating oil in the oil tank and lubricating oil inside the bearing bush, so that an oil film expanded by heat between the journal and the bearing bush flows through the oil outlet, the main oil duct, the branch oil ducts and the oil return pipe along the oil discharge pipe at the bottom of the bearing bush in sequence and then flows back to the oil tank to form circulating cooling, and good cooling effects are achieved on the inner side and the outer side of the bearing;

2. according to the utility model, by arranging the temperature detection mechanism, during the working period of the bearing, the temperature sensor can monitor the oil temperature in the main oil duct in real time and transmit the temperature information to the controller, and the controller controls the opening and closing piece of the throttle valve according to the temperature information so as to control the flow of the oil filling pipe, so that the problem that the oil amount between the bearing bush and the journal is too much and too little is avoided;

3. according to the utility model, the cooling pipe with the outer wall provided with the disc-shaped protruding structure along the length direction is arranged between the oil return pipe and the oil tank, the protruding structure on the cooling pipe increases the heat dissipation surface of the cooling pipe, and when lubricating oil passes through the cooling pipe, the lubricating oil can fully dissipate heat.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a split structure of the bearing bush of the present invention;

FIG. 3 is a schematic cross-sectional front view of the present invention;

fig. 4 is an enlarged schematic view of the structure at a in fig. 3 according to the present invention.

In the figure: 1. a bearing seat; 2. a bearing cap; 3. bearing bushes; 31. putting a tile; 32. tile laying; 4. an oil tank; 5. an oil filling pipe; 6. an oil filler; 7. an oil return pipe; 8. a cooling tube; 9. a main oil gallery; 10. a branch oil passage; 11. an oil discharge pipe; 12. an oil outlet hole; 13. an oil screen; 14. mounting grooves; 15. a temperature sensor; 16. A controller; 17. a gasket; 18. an oil sump; 19. an oil inlet hole; 20. an end cap; 21. a throttle valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 to 4, an embodiment of the present invention provides a technical solution: an embedded copper alloy self-lubricating composite bearing comprises a bearing seat 1, a bearing cap 2 and a bearing bush 3, wherein the bearing cap 2 is arranged at the top of the bearing seat 1, the bearing seat 1 and two sides of the bearing cap 2 are fixed through bolts, the bearing bush 3 is arranged in a round hole formed in one side of the bearing cap 2 opposite to the bearing seat 1, an oil groove 18 is arranged on the inner side of the bearing bush 3, an oil inlet 19 communicated with the oil groove 18 is formed in the bearing bush 3, an oil tank 4 is arranged at the top of the bearing cap 2, an oil filling port 6 is arranged at the top of the oil tank 4, an oil filling pipe 5 is arranged at the bottom of the oil tank 4, the oil filling pipe 5 is aligned with the oil inlet 19 on the bearing bush 3, the embedded copper alloy self-lubricating composite bearing further comprises a cooling assembly, the cooling assembly comprises a main oil channel 9 formed in the bearing seat 1 at the bottom of the bearing bush 3 and a branch oil channel 10 connected with two sides of the main oil channel 9, an oil discharge pipe 11 is arranged on the bearing bush 3, the oil discharge pipe 11 is arranged in a splicing fit with the oil discharge hole 12 communicated with the main oil channel 9, an oil discharge pipe 11 is communicated with a main oil duct 9 through an oil outlet hole 12, one end of a branch oil duct 10 extends to the top of a bearing seat 1, an oil return pipe 7 opposite to the branch oil duct 10 is arranged at the top of a bearing cover 2, the bottom end of the oil return pipe 7 is connected with the branch oil duct 10, the other end of the oil return pipe 7 is communicated with an oil tank 4, when the bearing is used, lubricating oil in the oil tank 4 can enter an oil groove 18 on the inner side of a bearing bush 3 along an oil filling pipe 5 and an oil inlet hole 19, the lubricating oil forms a layer of oil film between a shaft neck inserted in the bearing bush 3 and the bearing bush 3, so that the resistance of the bearing during operation is reduced, as the temperature between the bearing bush 3 and the shaft neck continuously rises, a pressure difference is formed between the oil film between the shaft neck and the bearing bush 3 and the oil film in the oil tank 4, and the oil film expanded by heating between the shaft neck and the bearing bush 3 sequentially flows through the oil outlet hole 12, the main oil duct 9 and the oil duct 11 at the bottom of the bearing bush 3, Compared with the prior art, the bearing utilizes the principle of expansion with heat and contraction with cold, pressure difference is formed between lubricating oil in the oil tank 4 and the lubricating oil on the inner side of the bearing bush 3, so that the lubricating oil automatically circularly flows, and the inner side and the outer side of the bearing achieve good cooling effect.

In order to make the lubricating oil between the bearing bush 3 and the journal constant, on the basis of the above embodiment, the cooling assembly of this embodiment further includes a temperature detection mechanism, the temperature detection mechanism includes a temperature sensor 15 and a controller 16, the bottom of the bearing seat 1 is provided with a mounting groove 14, the temperature sensor 15 and the controller 16 are both mounted in the mounting groove 14, and a detection end of the temperature sensor 15 extends into the main oil gallery 9, a throttle valve 21 electrically connected with the temperature sensor 15 is mounted in the oil filling pipe 5, during the operation of the bearing, the temperature sensor 15 can monitor the oil temperature in the main oil gallery 9 in real time and transmit the temperature information to the controller 16, the controller 16 controls the opening and closing element of the throttle valve 21 according to the temperature information, and further controls the flow rate of the oil filling pipe 5, when the oil temperature in the main oil gallery 9 increases, the oil discharge amount of the oil filling pipe 5 increases, otherwise, the oil discharge amount of the oil filling pipe 5 decreases, thereby avoiding the problem that the oil quantity between the bearing bush 3 and the shaft neck is too much and too little.

In order to reduce the content of impurities in the oil path of the bearing, on the basis of the above embodiment, an oil screen 13 is arranged inside the main oil path 9 of the embodiment, the oil screen 13 is in a semi-cylindrical shape with one side open, the open side of the oil screen 13 faces the oil outlet, one end of the main oil path 9 extends to one side of the bearing seat 1, an end cover 20 for sealing the end of the main oil path 9 is connected to the bearing seat 1 in a threaded manner, when lubricating oil enters the main oil path 9 through the oil outlet 12, metal particle impurities generated by friction between the bearing bush 3 and a journal can be brought into the main oil path 9, the oil screen 13 can block the impurities, and the impurities are prevented from entering the branch oil path 10 through the main oil path 9, so that the content of the impurities in the whole circulating oil path is reduced, and when the impurities are accumulated to a certain amount, a worker can take out the oil screen 13 by detaching the end cover 20 to clean the impurities.

In order to reduce or avoid the phenomenon of oil leakage at the connection surface between the bearing seat 1 and the bearing cap 2, on the basis of the above embodiment, a rubber gasket 17 is clamped between the bearing seat 1 and the bearing cap 2 in the embodiment, the gasket 17 is located at the connection position between the main oil duct 9 and the oil return pipe 7, and a through hole for communicating the main oil duct 9 and the oil return pipe 7 is formed in the gasket 17, and the gasket 17 is arranged to increase the sealing performance between the bearing seat 1 and the bearing cap 2, so that the phenomenon of oil leakage at the connection surface between the bearing seat 1 and the bearing cap 2 is reduced or avoided.

In order to further improve the heat dissipation effect of the bearing, on the basis of the above embodiments, the cooling pipe 8 is connected between the oil return pipe 7 and the oil tank 4 in this embodiment, and the outer wall of the cooling pipe 8 is provided with a disc-shaped protruding structure along the length direction thereof, so that the heat dissipation surface of the cooling pipe 8 is increased by the protruding structure on the cooling pipe 8, and the lubricating oil can fully dissipate heat when passing through the cooling pipe 8.

In order to enable the inside of the whole bearing to uniformly dissipate heat, on the basis of the above embodiment, the main oil gallery 9 of the embodiment is arranged along the length direction of the bearing seat 1, the oil discharge pipe 11, the oil return pipe 7 and the branch oil gallery 10 are all distributed along the length direction of the bearing seat 1 at equal intervals, so that the heat dissipation uniformity of the connecting surface of the bearing bush 3 and the shaft neck is improved, and the heat dissipation effect is better.

The working principle is as follows: when the bearing is in use, lubricating oil in the oil tank 4 can enter the oil groove 18 on the inner side of the bearing bush 3 along the oil filling pipe 5 and the oil inlet 19, a layer of oil film is formed between the journal inserted in the bearing bush 3 and the bearing bush 3 by the lubricating oil, so that the resistance of the bearing during operation is reduced, as the temperature between the bearing bush 3 and the journal continuously rises, a pressure difference is formed between the oil film between the journal and the bearing bush 3 and the oil film in the oil tank 4, the oil film expanded by heating between the journal and the bearing bush 3 sequentially flows through the oil outlet 12, the main oil duct 9, the branch oil duct 10 and the oil return pipe 7 along the oil discharge pipe 11 at the bottom of the bearing bush 3 and then enters the cooling pipe 8, the cooling pipe 8 is cooled and then flows back into the oil tank 4, so as to achieve the effect of circular cooling, during the circular cooling of the bearing, the temperature sensor 15 can monitor the oil temperature in the main oil duct 9 in real time and transmit the temperature information to the controller 16, the controller 16 controls the opening and closing part of the throttle valve 21 according to the temperature information, and further controls the flow rate of the oil filling pipe 5, when the oil temperature in the main oil gallery 9 rises, the oil discharge amount of the oil filling pipe 5 increases, otherwise, the oil discharge amount of the oil filling pipe 5 decreases, when the lubricating oil enters the main oil gallery 9 through the oil outlet 12, metal particle impurities generated by friction between the bearing bush 3 and a shaft neck can be brought into the main oil gallery 9, the oil net 13 can block the impurities, the impurities are prevented from entering the branch oil gallery 10 through the main oil gallery 9, the impurity content in the whole circulating oil way is reduced, when the impurities are accumulated to a certain amount, a worker can detach the end cover 20, take out the oil net 13, and clean the impurities.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inserted copper alloy self-lubricating composite bearing which characterized in that: the bearing comprises a bearing seat (1), a bearing cap (2) and a bearing bush (3), wherein the bearing cap (2) is arranged at the top of the bearing seat (1), the bearing bush (3) is arranged in a round hole formed at one side of the bearing cap (2) opposite to the bearing seat (1), an oil groove (18) is formed in the inner side of the bearing bush (3), an oil inlet hole (19) communicated with the oil groove (18) is formed in the bearing bush (3), an oil tank (4) is arranged at the top of the bearing cap (2), an oil filling port (6) is formed in the top of the oil tank (4), an oil filling pipe (5) is arranged at the bottom of the oil tank (4), the oil filling pipe (5) is aligned with the oil inlet hole (19) in the bearing bush (3), the bearing device further comprises a cooling assembly, the cooling assembly comprises a main oil duct (9) formed in the bearing seat (1) at the bottom of the bearing bush (3) and branch oil ducts (10) connected with two sides of the main oil duct (9), be equipped with rather than inboard on axle bush (3) oil drain pipe (11) of oil groove (18) intercommunication, set up on bearing frame (1) with oil drain pipe (11) peg graft the cooperation and with oil outlet (12) of main oil duct (9) intercommunication, oil drain pipe (11) are passed through oil outlet (12) with main oil duct (9) intercommunication, branch oil duct (10) one end extend to bearing frame (1) top, bearing cap (2) top be equipped with branch oil duct (10) relative back oil pipe (7), back oil pipe (7) bottom with branch oil duct (10) are connected, back oil pipe (7) other end with oil tank (4) intercommunication.

2. The self-lubricating composite bearing of claim 1, wherein: the cooling assembly further comprises a temperature detection mechanism, the temperature detection mechanism comprises a temperature sensor (15) and a controller (16), a mounting groove (14) is formed in the bottom of the bearing seat (1), the temperature sensor (15) and the controller (16) are mounted in the mounting groove (14), a detection end of the temperature sensor (15) extends to the inside of the main oil duct (9), and a throttle valve (21) electrically connected with the temperature sensor (15) is mounted in the oil filling pipe (5).

3. The self-lubricating composite bearing of claim 1, wherein: the oil filter is characterized in that an oil net (13) is arranged inside the main oil duct (9), the oil net (13) is in a semi-cylindrical shape with one side open, one side of the opening of the oil net (13) is right opposite to the oil outlet, one end of the main oil duct (9) extends to one side of the bearing seat (1), and the bearing seat (1) is connected with an end cover (20) which seals the end of the main oil duct (9) in a threaded mode.

4. The self-lubricating composite bearing of claim 1, wherein: the bearing seat (1) and a rubber gasket (17) is clamped between the bearing cover (2), the gasket (17) is located at the joint of the main oil duct (9) and the oil return pipe (7), and a through hole for communicating the main oil duct (9) with the oil return pipe (7) is formed in the gasket (17).

5. The self-lubricating composite bearing of claim 1, wherein: the oil return pipe (7) and the oil tank (4) are connected with a cooling pipe (8), and the outer wall of the cooling pipe (8) is provided with a disc-shaped protruding structure along the length direction of the cooling pipe.

6. The self-lubricating composite bearing of claim 1, wherein: the main oil gallery (9) is arranged along the length direction of the bearing seat (1), and the oil discharge pipe (11), the oil return pipe (7) and the branch oil gallery (10) are all distributed at equal intervals along the length direction of the bearing seat (1).