Novel outer bearing assembly and compressor

Abstract

The novel outer bearing assembly comprises a bearing seat and a shaft shoulder gasket, the bearing seat comprises a flange plate, a cylinder body and a baffle, the flange plate, the cylinder body and the baffle are integrated, the cylinder body is arranged in the center of the flange plate, the baffle is arranged on the bottom face of the flange plate and connected with the cylinder body, and the shaft shoulder gasket is arranged in the cylinder body. A through hole is formed in the center of the baffle, the shaft shoulder gasket is installed on the upper surface of the baffle, the outer contour of the shaft shoulder gasket is matched with the shape of the inner wall of the cylinder, a through hole is formed in the center of the shaft shoulder gasket, an oil groove is formed in the inner wall face of the cylinder and penetrates through the baffle downwards, and a positioning part protruding outwards is arranged at the position, corresponding to the oil groove, of the shaft shoulder gasket. According to the utility model, installation procedures are reduced, and assembly operation is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of reciprocating piston refrigeration compressors, in particular to a novel outer bearing assembly and a compressor. Background Art

[0002] In many reciprocating piston refrigeration compressors, the centrifugal force generated by the rotation of the crankshaft is used to pump oil within the compressor. The bearing assembly supporting the crankshaft typically consists of an outer bearing, a baffle, and a shoulder pad. These components are fastened together with screws and primarily support and balance the crankshaft. The openings in the baffle and shoulder pad, combined with the crankshaft's oil drain groove, also facilitate the removal of debris during operation. The shoulder pad, typically made of the polymer material Bakelite, offers a very smooth surface, supporting the crankshaft and reducing wear. Existing outer bearing assemblies typically consist of an outer bearing seat, shoulder pad, and baffle. The assembly process is complex, and each component requires high precision to ensure optimal assembly. This places high demands on component accuracy. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a new outer bearing assembly and a compressor.

[0004] The specific scheme of the present utility model is: a new type of external bearing assembly, including a bearing seat and a shoulder gasket, the bearing seat includes a flange plate, a cylindrical body and a baffle, the flange plate, the cylindrical body and the baffle are a whole, the cylindrical body is arranged at the center of the flange plate, the baffle is arranged on the bottom surface of the flange plate and is connected to the cylindrical body, a through hole is provided in the center of the baffle, the shoulder gasket is installed on the upper surface of the baffle, the outer contour of the shoulder gasket matches the shape of the inner wall of the cylindrical body, a through hole is provided in the center of the shoulder gasket, the inner wall surface of the cylindrical body is provided with an oil groove, the oil groove passes through the baffle downward, and the shoulder gasket is provided with a positioning portion protruding outward corresponding to the oil groove.

[0005] Furthermore, the outer ring of the shoulder gasket is provided with a plurality of notches.

[0006] Furthermore, a circle of annular bosses is provided on the upper surface of the baffle, and the outer diameter of the bosses is smaller than the inner wall diameter of the cylinder so that a circle of grooves is formed between the bosses and the cylinder.

[0007] Furthermore, the flange plate is provided with at least two screw holes.

[0008] The utility model also provides a compressor equipped with the outer bearing assembly of the structure.

[0009] Compared with the prior art, the utility model has the following advantages: 1. The outer bearing seat and the baffle are made into one piece, which reduces one part and simplifies the assembly operation. The accuracy of the parts can be guaranteed without affecting the assembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the protective frame of the utility model;

[0011] Figure 2 yes Figure 1 The main view;

[0012] Figure 3 yes Figure 2 AA view;

[0013] Figure 4 This is a structural diagram of the utility model shoulder gasket;

[0014] In the figure: 1, flange plate; 2, cylinder; 3, screw hole; 4, oil groove; 5, shoulder gasket; 51, notch; 52, positioning part; 6, baffle; 7, boss; 8, groove. DETAILED DESCRIPTION

[0015] See also Figure 1-4 This embodiment is a new type of external bearing assembly, including a bearing seat and a shoulder gasket 5. The bearing seat includes a flange plate 1, a cylindrical body 2 and a baffle 6. The flange plate 1, the cylindrical body 2 and the baffle 6 are an integral structure. The cylindrical body 2 is arranged at the center of the flange plate 1, the baffle 6 is arranged on the bottom surface of the flange plate 1 and is connected to the cylindrical body 2. A through hole is provided in the center of the baffle 6. The shoulder gasket 5 is installed on the upper surface of the baffle 6. The outer contour of the shoulder gasket 5 matches the shape of the inner wall of the cylindrical body 2. A through hole is provided in the center of the shoulder gasket 5. An oil groove 4 is provided on the inner wall surface of the cylindrical body 2. The oil groove 4 penetrates the baffle 6 downward. The shoulder gasket 5 is provided with a positioning portion 52 protruding outward corresponding to the oil groove 4.

[0016] Furthermore, the outer ring of the shoulder gasket 5 is provided with a plurality of notches 51 .

[0017] Furthermore, the upper surface of the baffle 6 is provided with a circle of annular bosses 7, the outer diameter of the bosses 7 is smaller than the inner wall diameter of the cylinder 2, so that a circle of grooves 8 is formed between the bosses 7 and the cylinder 2, and the grooves 8 are communicated with the notch 51 of the upper shoulder gasket 5. By providing the notch 51 and the groove 8, the crankshaft oil and slag discharge is better coordinated, and the probability of slag entering the moving pair with the oil is reduced.

[0018] Furthermore, at least two screw holes 3 are provided on the flange plate 1, and screws are installed through the screw holes 3 to fix the bearing seat on the cylinder seat.

[0019] The utility model also provides a compressor equipped with the outer bearing assembly of the structure.

[0020] During assembly, the shoulder gasket 5 is placed on the boss 7, and the positioning portion 52 is extended into the oil groove 4. The positioning portion 52 is restricted by the oil groove 4, thereby restricting the rotation of the shoulder gasket 5, playing a limiting role and an assembly anti-mistake role, and then the short shaft of the crankshaft is inserted into the cylindrical body 2.

Claims

1. A new type of outer bearing assembly, characterized by: It includes a bearing seat and a shoulder gasket. The bearing seat includes a flange plate, a cylindrical body and a baffle. The flange plate, the cylindrical body and the baffle are a whole. The cylindrical body is arranged at the center of the flange plate. The baffle is arranged on the bottom surface of the flange plate and is connected to the cylindrical body. A through hole is provided in the center of the baffle. The shoulder gasket is installed on the upper surface of the baffle. The outer contour of the shoulder gasket matches the shape of the inner wall of the cylindrical body. A through hole is provided in the center of the shoulder gasket. An oil groove is provided on the inner wall of the cylindrical body. The oil groove passes through the baffle downward. The shoulder gasket is provided with a positioning portion protruding outward corresponding to the oil groove.

2. A novel outer bearing assembly according to claim 1, characterized in that: The outer ring of the shoulder gasket is provided with a plurality of notches.

3. A novel outer bearing assembly according to claim 1, characterized in that: The upper surface of the baffle is provided with a circle of annular bosses, the outer diameter of the bosses is smaller than the inner wall diameter of the cylinder so that a circle of grooves is formed between the bosses and the cylinder.

4. A novel outer bearing assembly according to claim 1, characterized in that: At least two screw holes are provided on the flange plate.

5. A compressor, characterized in that: Equipped with the outer bearing assembly according to any one of claims 1 to 4.

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