CN212744677U

CN212744677U - Low-abrasion high-reliability crankshaft for refrigeration compressor

Info

Publication number: CN212744677U
Application number: CN202021574239.7U
Authority: CN
Inventors: 朱子灏
Original assignee: Jiaxing Haifeng Machinery Manufacturing Co Ltd
Current assignee: Jiaxing Haifeng Machinery Manufacturing Co Ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-03-19
Anticipated expiration: 2030-08-03

Abstract

The utility model relates to a compressor technical field, and a low high reliability bent axle for compressor that wears is disclosed, including major axis and eccentric shaft, the eccentric shaft is located the top setting of major axis, and the lower extreme fixedly connected with fixed block of eccentric shaft, the right-hand member fixedly connected with balancing piece of fixed block, the upper end of major axis and the lower extreme of fixed block and one side fixed connection in opposite directions of eccentric shaft, the oil-out has been seted up to the inside of eccentric shaft, an oil groove has been seted up to the last lateral wall of oil-out, the oil drainage groove has been seted up to the lateral wall of oil-out, the logical oilhole that the slope set up is seted up to the lower lateral wall of oil-out, the one. The utility model discloses can be indirect reduction bent axle and the friction between the part on every side, further reduce the wearing and tearing of bent axle, can improve the reliability of bent axle work simultaneously, prolong compressor's life.

Description

Low-abrasion high-reliability crankshaft for refrigeration compressor

Technical Field

The utility model relates to a compressor technical field especially relates to a low high reliability crankshaft for compressor that wears.

Background

The refrigeration compressors are the core and the heart of the refrigeration system, and the capacity and the characteristics of the compressor determine the capacity and the characteristics of the refrigeration system, so that the capacity of the compressor is reflected in a certain sense by the design and the matching of the refrigeration system, therefore, the refrigeration industry of all countries in the world has no great effort on the research of the refrigeration compressors, new research directions and research achievements are continuously generated, the technical and performance levels of the compressors are different day by day, the types of the compressors are many, and the refrigeration compressors can be divided into fixed displacement compressors and variable displacement compressors according to different working principles.

At present, the inside of a refrigeration compressor generally drives a piston to move through a crankshaft, so that the refrigeration cycle of a refrigerator is realized, but the existing crankshaft is greatly abraded in the daily working process, so that an oil duct is formed in the crankshaft to lubricate the crankshaft and reduce abrasion, but the lubricating effect between the existing crankshaft and surrounding parts is poor, the service life of the refrigeration compressor is influenced, and therefore the crankshaft for the low-abrasion high-reliability refrigeration compressor is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art that the lubricated effect between bent axle and the part on every side is not good, influences compressor's life's problem, and the bent axle for the low high reliability compressor of a low wearing and tearing that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a crankshaft for a low-abrasion high-reliability refrigeration compressor comprises a long shaft and an eccentric shaft, wherein the eccentric shaft is arranged above the long shaft, the lower end of the eccentric shaft is fixedly connected with a fixed block, the right end of the fixed block is fixedly connected with a balance block, the upper end of the long shaft is fixedly connected with the lower end of the fixed block and one side of the eccentric shaft opposite to the lower end of the eccentric shaft, an oil outlet is formed in the eccentric shaft, an oil outlet groove is formed in the upper side wall of the oil outlet, an oil discharge groove is formed in the side wall of the oil outlet, an oil through hole is formed in the lower side wall of the oil outlet in an inclined mode, one end, far away from the oil outlet, of the oil through hole penetrates through the inside of the fixed block and extends to the upper side of the long shaft, a spiral oil groove is formed in the, one side of the spiral oil groove, which is far away from the oil through hole, is communicated with the upper side wall of the oil cavity, an oil inlet groove is formed in the lower end of the long shaft, and an oil inlet hole is formed between the oil inlet groove and the lower side wall of the oil cavity.

Preferably, the side wall of the oil cavity is provided with an exhaust hole.

Preferably, the oil drainage groove is spirally arranged.

Preferably, the inner diameter of the exhaust hole is gradually increased from right to left.

Preferably, the oil outlet groove is arranged obliquely.

Preferably, the diameter of the oil inlet groove is larger than that of the oil inlet hole.

Compared with the prior art, the utility model provides a low high reliability bent axle for refrigeration compressor that wears possesses following beneficial effect:

1. this low high reliability of wearing and tearing bent axle for refrigeration compressor, through the major axis that is equipped with, the fixed block, mutually supporting of balancing piece and eccentric shaft, can constitute the bent axle, through the oil-out that is equipped with, go out the oil groove, the oil through hole, the spiral oil groove, mutually supporting of oil feed tank and inlet port, can carry out the lubrication action to the bent axle, through the oil extraction groove that is equipped with, after oil gets into the oil extraction groove, can make a part oil get rid of the junction of bent axle parts on every side, make key spare part obtain better lubrication, indirect reduction bent axle and the friction between the part on every side, further reduce the wearing and tearing of bent axle.

2. This low wearing and tearing high reliability bent axle for compressor, through the exhaust hole that is equipped with, during the bent axle rotation, refrigeration steam can be followed and directly discharged in the exhaust hole, improves the reliability of bent axle work, also can make partial oil discharge from the exhaust hole, further improves the lubrication between bent axle downside and the part on every side, extension compressor's life.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses friction between reduction bent axle that can be indirect and the part on every side further reduces the wearing and tearing of bent axle, can improve the reliability of bent axle work simultaneously, extension compressor's life.

Drawings

Fig. 1 is a schematic structural view of a low-wear high-reliability crankshaft for a refrigeration compressor according to the present invention;

fig. 2 is a rear view structural diagram of fig. 1.

In the figure: the device comprises a long shaft 1, an eccentric shaft 2, a fixed block 3, a balance block 4, an oil outlet 5, an oil discharge groove 6, an oil through hole 7, a spiral oil groove 8, an oil cavity 9, an oil inlet groove 10, an oil inlet hole 11 and an exhaust hole 12.

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.

Referring to fig. 1-2, a crankshaft for a low-wear high-reliability refrigeration compressor comprises a long shaft 1 and an eccentric shaft 2, wherein the eccentric shaft 2 is arranged above the long shaft 1, the lower end of the eccentric shaft 2 is fixedly connected with a fixed block 3, the right end of the fixed block 3 is fixedly connected with a balance block 4, the upper end of the long shaft 1 is fixedly connected with the lower end of the fixed block 3 and the opposite side of the lower end of the eccentric shaft 2, an oil outlet 5 is arranged inside the eccentric shaft 2, an oil outlet groove is arranged on the upper side wall of the oil outlet 5, an oil discharge groove 6 is arranged on the side wall of the oil outlet 5, an obliquely arranged oil through hole 7 is arranged on the lower side wall of the oil outlet 5, one end of the oil through hole 7, which is far away from the oil outlet 5, penetrates through the inside of the fixed block 3 and extends to the upper side of the, an oil cavity 9 is formed in the lower portion inside the long shaft 1, one side, far away from the oil through hole 7, of the spiral oil groove 8 is communicated with the upper side wall of the oil cavity 9, an oil inlet groove 10 is formed in the lower end of the long shaft 1, and an oil inlet hole 11 is formed between the oil inlet groove 10 and the lower side wall of the oil cavity 9.

The side wall of the oil cavity 9 is provided with an exhaust hole 12, when the crankshaft rotates, the refrigeration steam can be directly discharged from the exhaust hole 12, the working reliability of the crankshaft is improved, part of oil can be discharged from the exhaust hole 12, the lubrication between the lower side of the crankshaft and surrounding parts is further improved, and the service life of the refrigeration compressor is prolonged.

The oil discharge groove 6 is spirally arranged.

The inner diameter of the exhaust hole 12 is gradually increased from right to left.

The oil outlet groove is obliquely arranged.

The diameter of the oil inlet groove 10 is larger than that of the oil inlet hole 11.

The utility model discloses in, during the use, long axis 1 through being equipped with, fixed block 3, balancing piece 4 and eccentric shaft 2, can constitute the bent axle, through the oil-out 5 that is equipped with, go out the oil groove, oil through hole 7, spiral oil groove 8, oil feed tank 10 and inlet port 11, oil gets into inside oil pocket 9 through inlet port 11 from oil feed tank 10, through spiral oil groove 8, oil through hole 7 gets into oil-out 5 department, and discharge from oil groove department, thereby can carry out the lubrication action to the bent axle, through the oil extraction groove 6 that is equipped with, when oil gets into oil-out 5 position department, a part oil can be followed oil extraction groove 6 and got rid of the junction of bent axle parts on every side, make key spare part obtain better lubrication, indirect reduction bent axle and the friction between the part on every side, further reduce the wearing and tearing of bent axle.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A crankshaft for a low-wear high-reliability refrigeration compressor comprises a long shaft (1) and an eccentric shaft (2), and is characterized in that the eccentric shaft (2) is arranged above the long shaft (1), the lower end of the eccentric shaft (2) is fixedly connected with a fixed block (3), the right end of the fixed block (3) is fixedly connected with a balance block (4), the upper end of the long shaft (1) is fixedly connected with the lower end of the fixed block (3) and the lower end of the eccentric shaft (2) in a side direction opposite to each other, an oil outlet (5) is formed in the eccentric shaft (2), an oil outlet groove is formed in the upper side wall of the oil outlet (5), an oil discharge groove (6) is formed in the side wall of the oil outlet (5), an oil through hole (7) is obliquely formed in the lower side wall of the oil outlet (5), one end, far away from the oil outlet (5), of the oil through hole (7) penetrates through the, spiral oil groove (8) have been seted up to the axle wall of major axis (1), and one side that is close to eccentric shaft (2) of spiral oil groove (8) is located the inside one end of major axis (1) with logical oilhole (7) and is linked together, oil pocket (9) have been seted up to the inside below of major axis (1), one side that logical oilhole (7) were kept away from in spiral oil groove (8) is linked together with the last lateral wall of oil pocket (9), oil feed tank (10) have been seted up to the lower extreme of major axis (1), and oil inlet (11) have been seted up jointly between the lower lateral wall of oil feed tank (10) and oil pocket (9).

2. A crankshaft for a low-wear high-reliability refrigeration compressor according to claim 1, characterized in that the side wall of the oil chamber (9) is provided with a vent hole (12).

3. A low-wear high-reliability crankshaft for a refrigeration compressor according to claim 1, characterized in that said oil drain groove (6) is provided spirally.

4. A low-wear high-reliability crankshaft for a refrigerant compressor according to claim 2, wherein the inside diameter of the discharge hole (12) is gradually increased from right to left.

5. A low-wear high-reliability crankshaft for a refrigerating compressor according to claim 1, wherein said oil discharge groove is formed to be inclined.

6. A low-wear high-reliability crankshaft for a refrigerant compressor according to claim 1, wherein the diameter of the oil feed groove (10) is larger than the diameter of the oil feed hole (11).