CN213870269U

CN213870269U - Oil-free scroll air compressor with air suction and pressurization functions

Info

Publication number: CN213870269U
Application number: CN202023063379.0U
Authority: CN
Inventors: 梁奉敏; 宋会明; 王洪帅; 尹法辉
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: 2021-08-03
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses an oil-free vortex air compressor with air suction and pressurization, wherein an impeller is sleeved outside a shaft body of an eccentric driving shaft, and an air suction and pressurization device is arranged on the eccentric driving shaft; a first bearing and a second bearing are respectively arranged at the middle part and the head end of the shaft body of the eccentric driving shaft; the head end of the eccentric driving shaft is provided with a movable disc, the outer side surface of the movable disc is tiled and attached with a static disc, and the contact surface between the static disc and the movable disc is meshed; a crank throw is arranged above the inner side surface above the movable disc, and a crank throw front bearing and a crank throw rear bearing are respectively arranged at two ends of the shaft body of the crank throw; the static disc is provided with an exhaust port. The utility model is additionally provided with the impeller increasing device, and the pressure and the flow of the gas entering the compression cavity can be increased through the air suction supercharging devices arranged at different positions in the machine body; the heat distortion and the stress influence on the moving and static disc profiles caused by compressing gas can be reduced, and meanwhile, the space can be saved, the cost can be reduced, and the service life of the whole machine can be prolonged.

Description

Oil-free scroll air compressor with air suction and pressurization functions

Technical Field

The utility model relates to an air compressor field, concretely relates to do not have oily vortex air compressor with pressure boost of breathing in.

Background

The scroll compressor is a positive displacement compressor, and the compression component consists of a movable scroll plate and a fixed scroll. Including a number of structural features that provide a bypass flow of gas through the compressor housing to reduce entrained oil. The air suction port of the machine body is directly communicated with the atmosphere through the air filter element device, and after air with standard atmospheric pressure is sucked, the air is engaged and compressed through the molded lines of the movable disc and the static disc until the air is finally discharged from the exhaust port of the compressor. When obtaining the gas with higher pressure, a higher compression ratio is needed, so that the diameter of the movable and static discs is increased, the influence of the higher compression ratio on the thermal deformation and stress of the molded lines of the movable and static discs is larger, the cost is increased, and the service life of the engine body is reduced. To above-mentioned problem, this scheme has provided an oilless vortex air compressor with pressure boost of breathing in.

Disclosure of Invention

In view of the above-identified deficiencies or inadequacies in the prior art, it would be desirable to provide an oil-free scroll air compressor having suction boosting.

According to the technical scheme provided by the embodiment of the utility model, an oilless vortex air compressor with air suction and pressurization comprises an eccentric driving shaft, a first bearing, a second bearing, an impeller, a movable disc, a static disc, a crank front bearing, a crank rear bearing, an air outlet and an air suction and pressurization device; the impeller is sleeved outside the shaft body of the eccentric driving shaft, and the air suction supercharging device is arranged on the eccentric driving shaft; the first bearing and the second bearing are respectively arranged at the middle part and the head end of the shaft body of the eccentric driving shaft; the movable disc is mounted at the head end of the eccentric driving shaft, the static disc is flatly laid and attached to the outer side face of the movable disc, and the contact surface between the static disc and the movable disc is meshed; the crank throw is arranged above the inner side surface above the movable disc, the front crank throw bearing and the rear crank throw bearing are respectively arranged at two ends of the shaft body of the crank throw, bearing holes are respectively formed in the cover plate and the shell of the movable disc, and the front crank throw bearing and the rear crank throw bearing are respectively fixed in the bearing holes of the shell and the movable disc; the static disc is provided with the exhaust port.

The utility model discloses in the center collar mouth department of driving disk installs central bearing, eccentric drive shaft pass through central bearing with the driving disk is connected.

The utility model discloses in, the gas vent is seted up one side of the central circle mouth of quiet dish.

The utility model discloses in, the quantity of impeller is greater than one.

The utility model discloses in, first bearing and second bearing are installed respectively eccentric drive shaft middle part and front end, the second bearing is located the rear of central bearing.

The utility model discloses in set up the induction port on the quiet dish and install air filter in the passageway of induction port.

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

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

1. the impeller adding device is additionally arranged and can be arranged at any position of the eccentric shaft, and the pressure and the flow of gas entering the compression cavity can be increased through the air suction supercharging devices arranged at different positions in the machine body.

2. When the compressor obtains gas with higher pressure, the compressor has smaller compression ratio and smaller movable and static discs, can reduce the thermal deformation and stress influence on the movable and static disc profiles caused by compressing the gas, and can save space, reduce cost and prolong the service life of the whole compressor.

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 view of the present invention.

Reference numbers in the figures: 1. the centrifugal fan comprises an eccentric driving shaft, 2. a first bearing, 3. a second bearing, 4. an impeller, 5. a movable disc, 6. a fixed disc, 7. a crank throw, 8. a crank throw front bearing, 9. a crank throw rear bearing, 10. an exhaust port, 11. an air suction supercharging device and 12. an air suction port.

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, an oil-free scroll air compressor with suction supercharging comprises an eccentric driving shaft 1, a first bearing 2, a second bearing 3, an impeller 4, a movable disc 5, a fixed disc 6, a crank 7, a crank front bearing 8, a crank rear bearing 9, an exhaust port 10 and a suction supercharging device 11; the impeller 4 is sleeved outside the shaft body of the eccentric driving shaft 1, and the air suction supercharging device 11 is arranged on the eccentric driving shaft 1; the first bearing 2 and the second bearing 3 are respectively arranged at the middle part and the head end of the shaft body of the eccentric driving shaft 1; install eccentric drive shaft 1's head end movable disk 5 the lateral surface tiling of movable disk 5 is laminated static dish 6, the contact surface meshing between static dish 6 and the movable disk 5, movable disk 5 and static dish 6 have the same molded lines parameter. The crank throw 7 is arranged above the inner side surface above the movable disc 5, the two ends of the shaft body of the crank throw 7 are respectively provided with the crank throw front bearing 8 and the crank throw rear bearing 9, bearing holes are respectively formed in the cover plate and the shell of the movable disc 5, and the crank throw front bearing 8 and the crank throw rear bearing 9 are respectively fixed in the bearing holes of the shell and the movable disc 5; the movable disc 5 is limited to revolution translation motion from circular motion under the limitation of the crank throw 7; the fixed disc 6 is provided with the exhaust port 10, and the exhaust port 10 is arranged on one side of a central ring opening of the fixed disc 6.

In the compressor, a central bearing is installed at a central ring opening of the movable disc 5, the eccentric driving shaft 1 is connected with the movable disc 5 through the central bearing, and the eccentric driving shaft 1 drives the movable disc 5 to do circular motion through the central bearing.

As shown in fig. 1, the number of the impellers 4 is more than one, and the number of the impellers 4 may be 2.

As shown in fig. 1, the first bearing 2 and the second bearing 3 are respectively installed at the middle part and the front end of the eccentric driving shaft 1, and the second bearing 3 is located behind the central bearing.

In the compressor, the static disc 6 is provided with the air suction port 12, and the air filter element is arranged in a channel of the air suction port 12 to filter sucked air, so that impurities are prevented from entering the inside of the machine body too much to cause blockage in the machine body, and the normal operation of the machine body is prevented.

In the compressor, the air suction supercharging device 11 is arranged on the eccentric driving shaft 1, the installation position of the air suction supercharging device can be located at the rear end of the eccentric driving shaft 1 as shown in figure 1, the air suction supercharging device 11 can also be arranged at any position such as the middle part or the front end according to actual requirements, and the pressure and the flow of air entering a compression cavity can be increased through the air suction supercharging devices arranged at different positions in a machine body.

Example (b): the eccentric driving shaft 1 drives the movable disc 5 to do circular motion through a central bearing arranged on the movable disc 5, the motion of the movable disc 5 is limited to revolution translation from the circular motion under the limitation of the crank 7, and the movable disc 5 can drive the static disc 6 meshed with the movable disc to do revolution translation simultaneously when moving; the air suction port sucks gas which is pressurized by the impeller 4 with the same rotating speed as the eccentric driving shaft 1 through the air suction supercharging device 11, the gas is filtered by the air filter element and enters a crescent cavity with continuously changed volume from outside to inside, and the gas is engaged and compressed by the molded lines of the movable disc 5 and the static disc 6 until the gas is finally discharged from the exhaust port 10 of the compressor.

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. An oil-free vortex air compressor with air suction and pressurization is characterized by comprising an eccentric driving shaft (1), a first bearing (2), a second bearing (3), an impeller (4), a movable disc (5), a static disc (6), a crank (7), a crank front bearing (8), a crank rear bearing (9), an air outlet (10) and an air suction and pressurization device (11); the impeller (4) is sleeved outside the shaft body of the eccentric driving shaft (1), and the air suction supercharging device (11) is arranged on the eccentric driving shaft (1); the first bearing (2) and the second bearing (3) are respectively arranged at the middle part and the head end of the shaft body of the eccentric driving shaft (1); the movable disc (5) is mounted at the head end of the eccentric driving shaft (1), the static disc (6) is flatly laid and attached to the outer side face of the movable disc (5), and the contact surface between the static disc (6) and the movable disc (5) is meshed; the crank throw (7) is arranged above the inner side face above the movable disc (5), the front crank throw bearing (8) and the rear crank throw bearing (9) are respectively arranged at two ends of the shaft body of the crank throw (7), bearing holes are respectively formed in the cover plate and the shell of the movable disc (5), and the front crank throw bearing (8) and the rear crank throw bearing (9) are respectively fixed in the bearing holes of the shell and the movable disc (5); the static disc (6) is provided with the exhaust port (10).

2. An oil-free scroll air compressor having suction plenum as claimed in claim 1, wherein: and a central bearing is arranged at the central ring opening of the movable disc (5), and the eccentric driving shaft (1) is connected with the movable disc (5) through the central bearing.

3. An oil-free scroll air compressor having suction plenum as claimed in claim 1, wherein: the exhaust port (10) is formed in one side of a central ring opening of the static disc (6).

4. An oil-free scroll air compressor having suction plenum as claimed in claim 1, wherein: the number of the impellers (4) is more than one.

5. An oil-free scroll air compressor with suction plenum as claimed in claim 2, wherein: the first bearing (2) and the second bearing (3) are respectively arranged in the middle and at the front end of the eccentric driving shaft (1), and the second bearing (3) is positioned behind the central bearing.

6. An oil-free scroll air compressor having suction plenum as claimed in claim 1, wherein: an air suction port (12) is formed in the static disc (6), and an air filter element is installed in a channel of the air suction port (12).

7. An oil-free scroll air compressor having suction plenum as claimed in claim 1, wherein: the movable disc (5) and the static disc (6) have the same profile parameters.