CN214145891U

CN214145891U - Low-pressure air-cooled oil-free vortex air compressor

Info

Publication number: CN214145891U
Application number: CN202023063253.3U
Authority: CN
Inventors: 梁奉敏; 宋会明; 尹法辉; 王洪帅
Original assignee: Hebei Haofang New Energy Technology Co ltd; Anhui Haofang Electromechanics Co Ltd
Current assignee: Hebei Haofang New Energy Technology Co ltd; Anhui Haofang Electromechanics Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-09-07
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a low-pressure air-cooled oil-free vortex air compressor; a first bearing and a second bearing are fixedly sleeved on a shaft body of the eccentric driving shaft; a movable disc central bearing is arranged at the central ring opening of the movable disc, and the movable disc is sleeved and arranged at the head end of the shaft body of the eccentric driving shaft through the movable disc central bearing; a static disc is arranged on the outer side of the movable disc, and the static disc is meshed with a contact surface between the movable disc and the static disc; the movable disc is arranged on the movable disc cover plate; one end of each crank is arranged in a front bearing of the crank, the other end of each crank is arranged in a rear bearing of the crank, three uniformly distributed bearing holes A are formed in the movable disc cover plate 1, the front bearings of the cranks are correspondingly arranged in the three bearing holes A, three uniformly distributed bearing holes B are formed in the shell 1, and the rear bearings of the cranks are correspondingly arranged in the three bearing holes B; the static disc is provided with an air outlet and an air suction inlet. The utility model reduces the processing difficulty of the molded lines; the service life of the bearing is prolonged, and the noise is reduced; the temperature of the compressor bearing can be greatly reduced when the compressor bearing works.

Description

Low-pressure air-cooled oil-free vortex air compressor

Technical Field

The utility model relates to an air compressor field, concretely relates to low pressure forced air cooling does not have oily vortex formula air compressor.

Background

The scroll air compressor drives the movable disc to rotate by the crankshaft, an eccentric shaft can be arranged on the crankshaft for increasing the rotational inertia, and the eccentric shaft solves the problem of small rotational inertia. The dynamic disc bearing in the existing compressor is often installed at the front end of the dynamic disc, so that the problem of large overturning moment of the dynamic disc can occur, the service life of the bearing can be shortened, and the noise is high; secondly, the existing compressor has high pressure when gas is discharged during working, so that the temperature of the machine body is overhigh during operation, the normal use of the machine body is not facilitated, and the service life of the machine body is easily lost; in order to solve the problems, the scheme provides a low-pressure air-cooled oil-free scroll type air compressor.

Disclosure of Invention

In view of the above-described deficiencies or inadequacies in the prior art, it would be desirable to provide a low pressure air cooled oil free scroll air compressor.

According to the technical scheme provided by the embodiment of the utility model, the low-pressure air-cooled oil-free vortex type air compressor comprises an eccentric driving shaft, a first bearing, a second bearing, a movable disc, a static disc, a crank front bearing, a crank rear bearing, a movable disc center bearing, an air suction port and an air exhaust port; the first bearing and the second bearing are fixedly sleeved on the shaft body of the eccentric driving shaft; the movable disc central bearing is installed at the central opening of the movable disc, and the movable disc is sleeved and installed at the head end of the shaft body of the eccentric driving shaft through the movable disc central bearing; the static disc is arranged on the outer side of the movable disc, and the contact surface between the static disc and the movable disc is meshed; the movable disc is arranged on the movable disc cover plate; the number of the crank throws is 3, one end of each crank throw is arranged in a crank throw front bearing, the other end of each crank throw is arranged in a crank throw rear bearing, three uniformly distributed bearing holes A are formed in the movable disc cover plate 1, the crank throw front bearings are correspondingly arranged in the three bearing holes A, three uniformly distributed bearing holes B are formed in the shell, and the crank throw rear bearings are correspondingly arranged in the three bearing holes B; the static disc is provided with the exhaust port; the static disc is provided with the air suction port.

The utility model discloses in, the eccentric orfice of eccentric drive shaft is fixed in the pivot of motor.

The utility model discloses in, the gas vent is seted up one side of the centre bore of quiet dish.

The utility model discloses in, driving disk central bearing installs the front end of the centre bore of driving disk is close to promptly the one end of quiet dish.

The utility model discloses in, driving disk center bearing is biserial angular contact sealed bearing.

The utility model discloses in, driving disk and quiet dish have the same molded lines parameter.

In the utility model, the first bearing is arranged at one end of the eccentric driving shaft far away from the movable disc; the second bearing is mounted on the eccentric drive shaft on a side thereof adjacent the movable disk.

To sum up, the utility model has the advantages that:

1. the compression ratio is low after the movable disc and the static disc are compressed, the molded lines do not need to be corrected, the processing difficulty of the molded lines is reduced, and the pressure of the compressor is 0.3MPa to the maximum.

2. The compressor bearing is arranged in the middle of the movable disc, the overturning moment is small, the service life of the bearing is prolonged, and the noise is reduced.

3. Because the overturning moment borne by the movable disc is smaller, the temperature of the compressor bearing can be greatly reduced during the operation; and the bearing adopts a double-row angular contact sealed bearing, so that the bearing is free from maintenance.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is a schematic front view of the structure of the present invention.

Reference numbers in the figures: 1. the eccentric driving shaft, 2, the first bearing, 3, the second bearing, 4, the movable disc, 5, the static disc, 6, the crank, 7, the front bearing of the crank, 8, the rear bearing of the crank, 9, the center bearing of the movable disc, 10, the air suction port, 11, the air exhaust port and 12, the crescent exhaust cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the low-pressure air-cooled oil-free scroll air compressor comprises an eccentric driving shaft 1, a first bearing 2, a second bearing 3, a movable disc 4, a fixed disc 5, a crank 6, a crank front bearing 7, a crank rear bearing 8, a movable disc center bearing 9, an air suction port 10 and an air exhaust port 11; the eccentric hole of the eccentric driving shaft 1 is fixed on the rotating shaft of the motor; the first bearing 2 and the second bearing 3 are fixedly sleeved on the shaft body of the eccentric driving shaft 1; the movable disc center bearing 9 is installed at the center ring opening of the movable disc 4, and the movable disc 4 is installed at the head end of the shaft body of the eccentric driving shaft 1 in a sleeved mode through the movable disc center bearing 9; the movable disc central bearing 9 is arranged at the front end of the central hole of the movable disc 4, namely at one end close to the fixed disc 5. The static disc 5 is arranged on the outer side of the movable disc 4, and the static disc 5 is meshed with the contact surface between the movable disc 4; the movable disc 4 is arranged on the movable disc cover plate 13; the number of the crank throws 6) is 3, one end of each crank throw 6 is arranged in a crank throw front bearing 7, the other end of each crank throw 6 is arranged in a crank throw rear bearing 8, three uniformly distributed bearing holes A are formed in the movable disc cover plate 13, the crank throw front bearings 7 are correspondingly arranged in the three bearing holes A, three uniformly distributed bearing holes B are formed in the shell 14, and the crank throw rear bearings 8 are correspondingly arranged in the three bearing holes B.

As shown in fig. 2 and 3, the stationary plate 5 is provided with the exhaust port 11; the stationary plate 5 is provided with the air inlet 10.

As shown in fig. 1, the first bearing 2 is mounted on the eccentric drive shaft 1 at an end remote from the movable disk 4; the second bearing 3 is mounted on the eccentric drive shaft 1 on the side adjacent to the moving disk 4.

As shown in fig. 2, the exhaust port 11 is opened on one side of the center hole of the stationary plate 5.

In the compressor, the movable disc central bearing 9 is a double-row angular contact sealed bearing, and the bearing is free from maintenance.

In the compressor, the movable disc 4 and the static disc 5 have the same profile parameters, the contact surfaces between the movable disc 4 and the static disc 5 are meshed, and the eccentric driving shaft 1 can drive the static disc 5 to move through the movable disc 4. Next, as shown in fig. 2 and 3, the compression ratio of the compressor is low after the movable plate 4 and the static plate 5 are compressed, the molded line does not need to be corrected, the difficulty of molded line processing is reduced, and the pressure of the compressor is 0.3MPa at most.

Example (b): in the compressor, an eccentric driving shaft 1 drives a movable disc 4 to do circular motion through a movable disc central bearing 9 arranged on the movable disc 4, the motion of the movable disc 4 is limited to revolution translation under the limitation of a crank 6 and drives a static disc 5 which has the same profile parameters as the movable disc 4 and is meshed with the movable disc 4 to do revolution translation motion, at the moment, a crescent exhaust cavity 12 with continuously changed volume from outside to inside is formed as shown in figure 2, and fluid is exhausted from a suction end 10 to an exhaust end 11.

The foregoing description is only exemplary of the preferred embodiments of the invention and is provided for the purpose of illustrating the general principles of the invention. Meanwhile, the scope of the present invention is not limited to the specific combinations of the above-described technical features, and other technical features or equivalent features may be combined arbitrarily without departing from the scope of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims

1. The low-pressure air-cooled oil-free scroll air compressor is characterized in that: the device comprises an eccentric driving shaft (1), a first bearing (2), a second bearing (3), a movable disc (4), a static disc (5), a crank (6), a crank front bearing (7), a crank rear bearing (8), a movable disc central bearing (9), an air suction port (10), an air exhaust port (11), a movable disc cover plate (13) and a shell (14); the first bearing (2) and the second bearing (3) are fixedly sleeved on the shaft body of the eccentric driving shaft (1); the movable disc center bearing (9) is installed at the center ring opening of the movable disc (4), and the movable disc (4) is installed at the head end of the shaft body of the eccentric driving shaft (1) in a sleeved mode through the movable disc center bearing (9); the static disc (5) is arranged on the outer side of the movable disc (4), and the contact surface between the static disc (5) and the movable disc (4) is meshed; the movable disc (4) is arranged on the movable disc cover plate (13); the number of the crank throws (6) is 3, one end of each crank throw (6) is installed in a front crank throw bearing (7) and the other end of each crank throw is installed in a rear crank throw bearing (8), three uniformly distributed bearing holes A are formed in the movable disc cover plate (13), the front crank throw bearings (7) are correspondingly installed in the three bearing holes A, three uniformly distributed bearing holes B are formed in the shell (14), and the rear crank throw bearings (8) are correspondingly installed in the three bearing holes B; the static disc (5) is provided with the exhaust port (11); the static disc (5) is provided with the air suction port (10).

2. The low pressure air cooled oil free scroll air compressor of claim 1, wherein: and an eccentric hole of the eccentric driving shaft (1) is fixed on a rotating shaft of the motor.

3. The low pressure air cooled oil free scroll air compressor of claim 1, wherein: the exhaust port (11) is formed in one side of a center hole of the static disc (5).

4. The low pressure air cooled oil free scroll air compressor of claim 1, wherein: the movable disc central bearing (9) is arranged at the front end of the central hole of the movable disc (4), namely at one end close to the static disc (5).

5. The low pressure air cooled oil free scroll air compressor of claim 1, wherein: the movable disc center bearing (9) is a double-row angular contact sealed bearing.

6. The low pressure air cooled oil free scroll air compressor of claim 1, wherein: the movable disc (4) and the static disc (5) have the same profile parameters.

7. The low pressure air cooled oil free scroll air compressor of claim 1, wherein: the first bearing (2) is arranged at one end of the eccentric driving shaft (1) far away from the movable disc (4); the second bearing (3) is arranged on one side of the eccentric driving shaft (1) close to the movable disc (4).