Main shaft of automobile air conditioner compressor

Abstract

The utility model relates to the technical field of compressor main shaft devices, in particular to a main shaft of an automobile air conditioner compressor, which comprises a main shaft, the main shaft is of a hollow structure, a through groove is formed in the middle of one side of the main shaft, a threaded cylinder is fixed on the outer side of one end of the main shaft, an extension shaft is fixed on the inner side of the main shaft, and a positioning hole is formed in one side of the extension shaft. The outer side of the threaded cylinder is sleeved with a fixing piece, the fixing piece comprises a threaded ring, two sets of side rods fixed to the outer sides of the two ends of the threaded ring and a pin shaft arranged between the two sets of side rods in a sleeving mode, and side rod structures on the two sides of the threaded ring to be moved to the designated position can be inserted into the side rod-penetrating groove-positioning holes through the pin shaft. And finally, the main shaft and the extension shaft are fixed through the nut and the pin shaft, length adjustment is achieved, the threaded ring structure and the threaded cylinder are fixed through meshing, and therefore the main shaft and the extension shaft can be combined, connected and fixed through the fixing piece structure, and length adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor main shaft devices, in particular to a main shaft of an automobile air-conditioning compressor. Background Art

[0002] The automobile air conditioning compressor is the heart of the automobile air conditioning refrigeration system, playing the role of compressing and transporting refrigerant vapor. According to different working modes, automobile air conditioning compressors can generally be divided into reciprocating and rotary types. Common reciprocating compressors are crankshaft connecting rod type and axial piston type, and common rotary compressors are rotary blade type and scroll type. The main shaft is the shaft in the compressor that receives power and transmits it to other parts.

[0003] The main shaft of the existing automobile air-conditioning compressor is relatively long and cannot be adjusted, which makes it troublesome to install the main shaft and extremely inconvenient to disassemble the main shaft. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a main shaft of an automobile air-conditioning compressor, which can effectively solve the problem in the prior art that the main shaft has a fixed length, causing inconvenience in use and disassembly.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The utility model provides a main shaft of an automobile air-conditioning compressor, comprising a main shaft, the main shaft is a hollow structure, a through groove is provided in the middle of one side of the main shaft, a threaded barrel is fixed on the outer side of one end of the main shaft, an extension shaft is fixed on the inner side of the main shaft, a positioning hole is provided on one side of the extension shaft, a fixing piece is sleeved on the outer side of the threaded barrel, the fixing piece comprises a threaded ring, two groups of side rods fixed on the outer sides of both ends of the threaded ring and a pin sleeved between the two groups of side rods, the extension shaft is arranged in the main shaft, and the pin passes through the positioning hole.

[0007] Furthermore, the extension shaft is a hollow structure.

[0008] Furthermore, the inner wall of the threaded ring and the outer wall of the threaded barrel can be engaged and fixed with each other through a threaded structure.

[0009] Furthermore, the positioning holes are provided in a plurality of groups at equal intervals on the extension axis.

[0010] Furthermore, the length of the two groups of side rods is three quarters of the length of the through slot.

[0011] Furthermore, the bottom end of the pin is fixed between the two groups of side rods through a nut.

[0012] Compared with the known public technology, the technical solution provided by the utility model has the following beneficial effects:

[0013] The utility model can effectively reduce weight and increase the speed of heat dissipation by setting up two groups of hollow main shafts and extension shaft structures. This cooling method has little effect on the structure of the compressor main shaft. At the same time, when in use, since the internal extension shaft can be extended and retracted relative to the main shaft, the extension shaft structure placed in the main shaft can be first unfixed by the pin and the nut, and the extension shaft moves in the main shaft. When it moves to the specified position, the side rod structure on both sides of the threaded ring can be inserted into the side rod-through groove-positioning hole by the pin, and finally fixed by the nut and the pin to achieve length adjustment. The threaded ring structure and the threaded barrel are fixed by meshing, so the main shaft and the extension shaft can be combined, connected and fixed by the fixing structure to achieve length adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural side view of the utility model;

[0017] Figure 3 This is a structural split diagram of the utility model;

[0018] Figure 4 It is a structural explosion diagram of the utility model.

[0019] The numbers in the figure represent: 1, main shaft; 11, threaded cylinder; 12, through groove; 2, extension shaft; 21, positioning hole; 3, fixing part; 31, threaded ring; 32, side rod; 33, pin shaft. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model is further described below in conjunction with embodiments.

[0022] Embodiment: A main shaft of an automobile air-conditioning compressor, referring to the attached Figure 1 -Attached Figure 4 , comprising a main shaft 1, the main shaft 1 is a hollow structure, and a through groove 12 is opened in the middle of one side of the main shaft 1, a threaded barrel 11 is fixed to the outside of one end of the main shaft 1, an extension shaft 2 is fixed to the inside of the main shaft 1, a positioning hole 21 is opened on one side of the extension shaft 2, a fixing member 3 is sleeved on the outside of the threaded barrel 11, and the fixing member 3 includes a threaded ring 31, two groups of side rods 32 fixed to the outside of both ends of the threaded ring 31, and a pin 33 sleeved between the two groups of side rods 32, the extension shaft 2 is arranged in the main shaft 1, and the pin 33 passes through the positioning hole 21;

[0023] The extension shaft 2 is a hollow structure; the inner wall of the threaded ring 31 and the outer wall of the threaded barrel 11 can be meshed and fixed by the threaded structure; the positioning holes 21 are evenly spaced and arranged in multiple groups on the extension shaft 2; the length of the two groups of side rods 32 is three-quarters of the length of the through groove 12; the bottom end of the pin 33 is fixed between the two groups of side rods 32 by a nut; by setting up two groups of hollow main shaft 1 and extension shaft 2 structures, the weight can be effectively reduced and the speed of heat dissipation can be increased. This cooling method has little effect on the structure of the compressor main shaft 1. At the same time, when in use, due to the internal extension shaft 2 It can be extended and retracted relative to the main shaft 1, so when in use, the extension shaft 2 structure placed in the main shaft 1 can be first unfixed by the pin 33 and the nut, and the extension shaft 2 moves in the main shaft 1. When it moves to the specified position, the side rods 32 structures on both sides of the threaded ring 31 can be inserted into the side rod 32-through groove 12-positioning hole 21 by the pin 33, and finally fixed by the nut and the pin 33 to achieve length adjustment. The threaded ring 31 structure is fixed to the threaded tube 11 by meshing, so the main shaft 1 and the extension shaft 2 can be combined, connected and fixed by the fixing member 3 structure to achieve length adjustment.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A main shaft of an automobile air-conditioning compressor, characterized in that: The invention comprises a main shaft (1), the main shaft (1) being a hollow structure, and a through groove (12) being provided in the middle of one side of the main shaft (1), a threaded barrel (11) being fixed on the outside of one end of the main shaft (1), an extension shaft (2) being fixed on the inside of the main shaft (1), a positioning hole (21) being provided on one side of the extension shaft (2), a fixing member (3) being sleeved on the outside of the threaded barrel (11), the fixing member (3) comprising a threaded ring (31), two groups of side rods (32) fixed on the outside of both ends of the threaded ring (31), and a pin (33) sleeved between the two groups of side rods (32), the extension shaft (2) being arranged in the main shaft (1), and the pin (33) being inserted through the positioning hole (21).

2. The main shaft of the automobile air-conditioning compressor according to claim 1, characterized in that: The extension shaft (2) is a hollow structure.

3. The main shaft of the automobile air-conditioning compressor according to claim 1, characterized in that: The inner wall of the threaded ring (31) and the outer wall of the threaded barrel (11) can be engaged and fixed via a threaded structure.

4. The main shaft of the automobile air-conditioning compressor according to claim 1, characterized in that: The positioning holes (21) are arranged in multiple groups at equal intervals on the extension shaft (2).

5. The main shaft of the automobile air-conditioning compressor according to claim 4, characterized in that: The length of the two groups of side bars (32) is three quarters of the length of the through slot (12).

6. The main shaft of the automobile air-conditioning compressor according to claim 1, characterized in that: The bottom end of the pin shaft (33) is fixed between the two sets of side rods (32) via a nut.

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