CN216111709U - Upper bearing of rotor type compressor - Google Patents
Upper bearing of rotor type compressor Download PDFInfo
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- CN216111709U CN216111709U CN202121536652.9U CN202121536652U CN216111709U CN 216111709 U CN216111709 U CN 216111709U CN 202121536652 U CN202121536652 U CN 202121536652U CN 216111709 U CN216111709 U CN 216111709U
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- upper bearing
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Abstract
An upper bearing of a rotor type compressor belongs to the technical field of compressors and comprises an annular bearing body, wherein one side surface of the bearing body protrudes outwards to form a cylinder body, and the total height of the bearing body is 0.35-0.55 times of the outer diameter of the bearing body; one part of the cylinder body is in a cone shape, the other part of the cylinder body is in a cylinder shape, and the lower bottom of one part of the cylinder body in the cone shape is the same as the upper bottom of one part of the cylinder body in the cylinder shape. The upper bearing provided by the utility model has the advantages that the reliability of the rotor type compressor is improved and the cost performance is improved by optimizing the sizes of the upper cylinder cover. Simultaneously, thrust of the crankshaft belt is offset by arranging the buffer groove, so that the upper bearing is protected, and the service life is prolonged.
Description
Technical Field
The utility model relates to an upper bearing of a rotor type compressor, and belongs to the technical field of compressors.
Background
The existing rotor compressor comprises a shell, a motor is installed on the upper side inside the shell, the motor is composed of a stator, a rotor, a rotating crankshaft and the like, the rotating crankshaft is pressed into the center of an upper bearing and is fixed on the center of the upper bearing, and the upper bearing is installed on the motor at a certain distance. The upper bearing is a core part of the rotor compressor and plays a role in opening and closing the bearing, a stator and a rotor of an upper motor are both arranged on the upper bearing and have a certain safety distance, a cylinder is upwards arranged in the middle of the upper bearing, a shaft hole is formed in the center of the cylinder and the center of the upper bearing, a valve plate for regulating gas is arranged on one surface of the upper bearing containing the cylinder, the total height and the outer diameter of the upper bearing are arranged in relation to the stress condition and the reliability of an integral pump body in the rotor compressor, when the total height of a bearing body in the existing upper bearing is more than 0.55 times of the outer diameter of the bearing body, if the total height of the bearing body is 0.61 times of the outer diameter of the bearing body, the displacement of the protruding part of the bearing body in stress analysis is 0.2100 mm. When the total height of the bearing body is less than 0.35 times the outer diameter of the bearing body, if the total height of the bearing body is 0.31 times the outer diameter of the bearing body, the displacement amount of the projection of the bearing body in the stress analysis is 0.1032 mm.
Disclosure of Invention
In order to solve the technical problems in the prior art, the utility model provides an upper bearing of a rotor compressor
The technical scheme adopted by the utility model for solving the technical problem is as follows: the upper bearing of the rotor type compressor at least comprises an annular bearing body, wherein one side surface of the bearing body protrudes outwards to form a cylinder body, and the total height of the bearing body is 0.35-0.55 times of the outer diameter of the bearing body.
The technical scheme is further improved as follows: one part of the cylinder body is in a cone shape, the other part of the cylinder body is in a cylinder shape, and the lower bottom of one part of the cylinder body in the cone shape is the same as the upper bottom of one part of the cylinder body in the cylinder shape.
And a buffer groove is arranged on the surface of the bearing body along the axis in a surrounding way.
And the surface provided with the buffer groove is opposite to the surface provided with the cylinder body.
And the buffer groove is close to the hollow part of the bearing body.
According to the technical scheme, the method comprises the following steps: the utility model provides a method for improving the total height of a bearing body to be the ratio of the outer diameters of the bearing body, so as to increase the strength and the deformation resistance, thereby increasing the reliability of a rotor compressor and improving the cost performance.
Drawings
Fig. 1 is a schematic bottom view of an upper bearing of a rotary compressor according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along the line A in FIG. 1;
in the figure: 1. the overall height of the bearing body; 2. the outer diameter of the bearing body; 3. a barrel; 4. a buffer tank.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples, and the present invention is not limited to the examples.
As shown in fig. 1 and 2, an upper bearing of a rotor compressor includes a ring-shaped bearing body, one side surface of the bearing body protrudes outward to form a cylinder 3, and the total height 1 of the bearing body is 0.35-0.55 times of the outer diameter 2 of the bearing body; one part of the cylinder body is in a cone shape, the other part of the cylinder body is in a cylinder shape, and the lower bottom of one part of the cylinder body in the cone shape is the same as the upper bottom of one part of the cylinder body in the cylinder shape. The bearing body encircle along the axis on the surface and be equipped with dashpot 4, the surface that is equipped with the dashpot is for installing the opposite on the surface of barrel, and the dashpot is close to the cavity department of bearing body, and when receiving the thrust in crankshaft area, the inner wall of dashpot has certain micro-deformation, comes the thrust in crankshaft area of offset.
In example 1, when the total height of the bearing body was 0.35 times the outer diameter of the bearing body, the amount of displacement of the projection of the bearing body in the stress analysis was 0.0864 mm.
In example 2, when the total height of the bearing body was 0.45 times the outer diameter of the bearing body, the amount of displacement of the protrusion of the bearing body in the stress analysis was 0.0963 mm.
In example 3, when the total height of the bearing body was 0.55 times the outer diameter of the bearing body, the amount of displacement of the projection of the bearing body in the stress analysis was 0.0956 mm.
Example 4 the total height of the bearing body was 0.61 times the outer diameter of the bearing body, and the amount of displacement of the projection of the bearing body in the stress analysis was 0.2100 mm.
Example 5 the total height of the bearing body was 0.31 times the outer diameter of the bearing body, and the amount of displacement of the projection of the bearing body in the stress analysis was 0.1032 mm.
From the above embodiment, the deformation resistance when the total height of the bearing body is 0.35 to 0.55 times of the outer diameter of the bearing body is greater than the deformation resistance when the total height of the bearing body is greater than 0.55 times of the outer diameter of the bearing body and the deformation resistance when the total height of the bearing body is less than 0.35 times of the outer diameter of the bearing body, so that the total height of the bearing body is set to be 0.35 to 0.55 times of the outer diameter of the bearing body by the upper bearing, the strength and the deformation resistance of the upper bearing are improved, and the reliability and the cost performance of the rotor compressor are improved.
Claims (5)
1. The utility model provides an upper bearing of rotor compressor, includes the annular bearing body at least, and a side surface of bearing body outwards bulges and forms the barrel, its characterized in that: the total height of the bearing body is 0.35-0.55 times of the outer diameter of the bearing body.
2. The upper bearing of the rotor compressor as recited in claim 1, wherein: one part of the cylinder body is in a cone shape, the other part of the cylinder body is in a cylinder shape, and the lower bottom of one part of the cylinder body in the cone shape is the same as the upper bottom of one part of the cylinder body in the cylinder shape.
3. The upper bearing of the rotor compressor as recited in claim 1, wherein: and a buffer groove is arranged on the surface of the bearing body along the axis in a surrounding manner.
4. The upper bearing of the rotor compressor as recited in claim 3, wherein: the surface provided with the buffer groove is opposite to the surface provided with the cylinder body.
5. The upper bearing of the rotor compressor as recited in claim 4, wherein: the buffer groove is close to the hollow part of the bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121536652.9U CN216111709U (en) | 2021-07-07 | 2021-07-07 | Upper bearing of rotor type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121536652.9U CN216111709U (en) | 2021-07-07 | 2021-07-07 | Upper bearing of rotor type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111709U true CN216111709U (en) | 2022-03-22 |
Family
ID=80721719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121536652.9U Active CN216111709U (en) | 2021-07-07 | 2021-07-07 | Upper bearing of rotor type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111709U (en) |
-
2021
- 2021-07-07 CN CN202121536652.9U patent/CN216111709U/en active Active
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