Air conditioner compressor screw with rotor sealing structure

Abstract

The utility model relates to the technical field of air conditioner compressors, and discloses an air conditioner compressor screw with a rotor sealing structure, which comprises a casing, a first cavity is arranged in the casing, a male rotor and a female rotor are rotatably connected in the first cavity, the male rotor and the female rotor are meshed with each other, and the rotor sealing structure is arranged in the casing. Spiral blades of the male rotor and the female rotor are each provided with a plurality of mounting grooves, flexible parts are fixedly arranged in the mounting grooves, one end of the male rotor and one end of the female rotor are each fixedly connected with a first rotating shaft, and sealing parts are fixedly arranged on the outer sides of the first rotating shafts; a sealing gap is formed between the sealing piece and the inner wall of the machine shell. By arranging the mounting groove and the flexible piece, the influence of foreign matters on the female rotor and the male rotor is reduced, the female rotor and the male rotor are prevented from being meshed or blocked, and the service life of the compressor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning compressors, in particular to an air-conditioning compressor screw with a rotor sealing structure. Background Art

[0002] The screw air compressor is a type of positive displacement compressor. The air is compressed by the volume change of the teeth of the yin and yang rotors that mesh with each other in parallel in the casing. The yin and yang rotors rotate in the casing that precisely matches them, causing the gas between the rotor teeth to continuously produce periodic volume changes and be pushed from the suction side to the discharge side along the rotor axis, completing the three working processes of suction, compression, and exhaust.

[0003] The gap between the male and female rotors in a screw compressor is very small. When foreign matter enters the casing, it will cause the male and female rotors to bite or get stuck, causing damage to the compressor. Utility Model Content

[0004] The utility model aims to provide an air-conditioning compressor screw with a rotor sealing structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air-conditioning compressor screw with a rotor sealing structure, comprising a casing, a first cavity is arranged inside the casing, a male rotor and a female rotor are rotatably connected inside the first cavity, the male rotor and the female rotor are meshed with each other, a plurality of mounting grooves are arranged on the spiral blades of the male rotor and the female rotor, a flexible part is fixedly arranged inside the mounting groove, one end of the male rotor and the female rotor are fixedly connected to a first rotating shaft, a sealing member is fixedly arranged on the outer side of the first rotating shaft, and a sealing gap is formed between the sealing member and the inner wall of the casing.

[0006] The following improvement is made in the solution of the present application: a plurality of sealing working parts are arranged on the outer side of the sealing member, and sealing teeth are arranged between two adjacent sealing working parts.

[0007] The following improvement is made in the solution of the present application: a sealing introduction portion is provided on one side of the sealing member, and a sealing outlet portion is provided on the other side.

[0008] The following improvement is made in the solution of the present application: a first connecting hole is provided on one side of the interior of the housing, and the first rotating shaft is rotatably connected inside the first connecting hole.

[0009] The following improvement is made in the solution of the present application: a second cavity is provided on one side of the first connecting hole, and the sealing member is rotatably connected inside the second cavity.

[0010] The following improvement is made in the solution of the present application: one end of the female rotor is fixedly connected to a second rotating shaft, a second connecting hole is provided on one side inside the housing, and the second rotating shaft is rotatably connected inside the second connecting hole.

[0011] The following improvement is made in the solution of the present application: one end of the male rotor is fixedly connected to a connecting shaft, one side of the housing is provided with a through hole, and the interior of the through hole is rotatably connected to the connecting shaft.

[0012] Compared with the prior art, the utility model provides an air-conditioning compressor screw with a rotor sealing structure, which has the following beneficial effects:

[0013] The screw of the air-conditioning compressor with a rotor sealing structure is provided with a mounting groove and a flexible part. When foreign matter enters the casing, the foreign matter squeezes the flexible part, causing the flexible part to deform, allowing the foreign matter to enter the interior of the mounting groove, thereby reducing the influence of the foreign matter on the female rotor and the male rotor, preventing the female rotor and the male rotor from biting or getting stuck, and increasing the service life of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the internal structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0016] Figure 3 This is a schematic diagram of the structure of the male rotor of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the male rotor of the utility model.

[0018] In the figure, 1 is the casing; 2 is the first cavity; 3 is the male rotor; 4 is the female rotor; 5 is the mounting groove; 6 is the flexible part; 7 is the first rotating shaft; 8 is the sealing part; 9 is the sealing gap; 10 is the sealing working part; 11 is the sealing tooth; 12 is the sealing introduction part; 13 is the sealing lead-out part; 14 is the first connecting hole; 15 is the second cavity; 16 is the second rotating shaft; 17 is the second connecting hole; 18 is the connecting shaft; 19 is the through hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1-4As shown, a screw of an air-conditioning compressor with a rotor sealing structure includes a casing 1, a first cavity 2 is arranged inside the casing 1, a male rotor 3 and a female rotor 4 are rotatably connected inside the first cavity 2, the male rotor 3 and the female rotor 4 are meshed with each other, a plurality of mounting grooves 5 are arranged on the spiral blades of the male rotor 3 and the female rotor 4, a flexible member 6 is fixedly arranged inside the mounting groove 5, one end of the male rotor 3 and the female rotor 4 are fixedly connected to a first rotating shaft 7, a sealing member 8 is fixedly arranged on the outer side of the first rotating shaft 7, and a sealing gap 9 is formed between the sealing member 8 and the inner wall of the casing 1. By arranging the mounting groove 5 and the flexible member 6, when foreign matter enters the casing 1, the foreign matter squeezes the flexible member 6, causing the flexible member 6 to deform, causing the foreign matter to enter the interior of the mounting groove 5, thereby reducing the influence of the foreign matter on the female rotor 4 and the male rotor 3, preventing the female rotor 4 and the male rotor 3 from biting or getting stuck, and improving the service life of the compressor.

[0021] A plurality of sealing working parts 10 are arranged on the outer side of the sealing member 8 , and a sealing tooth 11 is arranged between two adjacent sealing working parts 10 .

[0022] A seal introduction portion 12 is provided on one side of the seal 8 , and a seal exit portion 13 is provided on the other side thereof.

[0023] A first connecting hole 14 is provided at one side of the interior of the housing 1 , and a first rotating shaft 7 is rotatably connected inside the first connecting hole 14 .

[0024] A second cavity 15 is disposed on one side of the first connecting hole 14 , and a sealing member 8 is rotatably connected to the interior of the second cavity 15 .

[0025] One end of the female rotor 4 is fixedly connected to a second rotating shaft 16 , and a second connecting hole 17 is provided at one side inside the housing 1 , and the second rotating shaft 16 is rotatably connected inside the second connecting hole 17 .

[0026] One end of the male rotor 3 is fixedly connected to a connecting shaft 18 , and one side of the housing 1 is provided with a through hole 19 , and the interior of the through hole 19 is rotatably connected to the connecting shaft 18 .

[0027] Obviously, the above described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments 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.

Claims

1. An air-conditioning compressor screw with a rotor sealing structure, comprising a housing (1), characterized in that: A first cavity (2) is provided inside the casing (1), a male rotor (3) and a female rotor (4) are rotatably connected inside the first cavity (2), the male rotor (3) and the female rotor (4) are meshed with each other, a plurality of mounting grooves (5) are provided on the spiral blades of the male rotor (3) and the female rotor (4), a flexible member (6) is fixedly provided inside the mounting groove (5), one end of the male rotor (3) and the female rotor (4) are fixedly connected to a first rotating shaft (7), a sealing member (8) is fixedly provided on the outer side of the first rotating shaft (7), and a sealing gap (9) is formed between the sealing member (8) and the inner wall of the casing (1).

2. The air-conditioning compressor screw with a rotor sealing structure according to claim 1, characterized in that: A plurality of sealing working parts (10) are arranged on the outer side of the sealing member (8), and a sealing tooth (11) is arranged between two adjacent sealing working parts (10).

3. The air-conditioning compressor screw with a rotor sealing structure according to claim 2, characterized in that: A sealing introduction portion (12) is provided on one side of the sealing member (8), and a sealing outlet portion (13) is provided on the other side.

4. The air-conditioning compressor screw with a rotor sealing structure according to claim 1, characterized in that: A first connecting hole (14) is provided on one side of the interior of the housing (1), and the first rotating shaft (7) is rotatably connected inside the first connecting hole (14).

5. The air-conditioning compressor screw with a rotor sealing structure according to claim 4, characterized in that: A second cavity (15) is provided on one side of the first connecting hole (14), and the interior of the second cavity (15) is rotatably connected to the sealing component (8).

6. The air-conditioning compressor screw with a rotor sealing structure according to claim 1, characterized in that: One end of the female rotor (4) is fixedly connected to a second rotating shaft (16); a second connecting hole (17) is provided on one side of the interior of the housing (1); and the interior of the second connecting hole (17) is rotatably connected to the second rotating shaft (16).

7. The air-conditioning compressor screw with a rotor sealing structure according to claim 1, characterized in that: One end of the male rotor (3) is fixedly connected to a connecting shaft (18); one side of the housing (1) is provided with a through hole (19); the interior of the through hole (19) is rotatably connected to the connecting shaft (18).

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