Sliding vane air compressor

Abstract

The sliding vane air compressor comprises a front end cover, an impeller shaft, a rear end cover, a motor and a control panel, the impeller shaft is connected with an output shaft of the motor, the front end cover and the rear end cover are arranged on the two sides of the impeller shaft, air holes are formed in the front end cover, air holes are formed in the rear end cover, and the two air holes are connected with a pressure sensor through air pipes. The control panel is connected with the pressure sensor, the control panel controls starting, stopping and the rotating speed of the motor according to signals of the pressure sensor, the air amount and the air pressure required by use are obtained, and a plurality of sliding pieces are arranged in the impeller shaft. The air compressor is simple in design structure, high in integration degree and easy to repair and maintain, and the air compressor can be integrated on a motor through coaxial design.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to a sliding vane air compressor. Background Art

[0002] The most common air compressors on the market are screw type and piston type, which are the most widely used, but have the following disadvantages: Screw air compressor: 1. High cost: The rotor tooth surface of the screw compressor is a spatial curved surface, which needs to be processed with special tools and expensive special equipment. In addition, there are also high requirements for the processing accuracy of the screw compressor cylinder; 2. Cannot be made into miniature: Screw compressors rely on gaps to seal gas. Currently, screw compressors generally only have superior performance when the volume flow rate is greater than 0.2m3 / min.

[0003] Piston air compressor: 1. The inertia force is large, the speed is low, and the machine is bulky; 2. The structure is relatively complex, there are many wearing parts, and the maintenance cost is high; 3. Discontinuous exhaust and pulsation of air flow pressure can easily cause air column vibration; 4. There is a lot of vibration and noise during operation, and the equipment is difficult to install. In addition, since the piston engine can only be intermittently inhaled and exhausted, the cylinder volume is small, and the speed cannot be too fast, the exhaust volume and power output of the piston engine are subject to certain restrictions; 5. Gas buffer tank is required for buffering. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a sliding vane air compressor to solve the problems of the existing air compressor having a complex structure, and vibrating and making loud noises during movement.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a vane air compressor, comprising a front end cover, an impeller shaft, a rear end cover, a motor and a control board, wherein the impeller shaft is connected to the output shaft of the motor, the front end cover and the rear end cover are arranged on both sides of the impeller shaft, the front end cover is provided with an air hole, the rear end cover is provided with an air hole, both air holes are connected to a pressure sensor through an air pipe, the control board is connected to the pressure sensor, the control board controls the start and stop of the motor and the speed according to the signal of the pressure sensor to obtain the required air volume and air pressure, and a plurality of vanes are arranged in the impeller shaft.

[0006] Preferably, a bearing steel bushing is arranged outside the impeller shaft, and a heat dissipation shell is arranged on the bearing steel bushing.

[0007] Preferably, the heat dissipation housing is made of one of cast iron, carbon steel, and aluminum alloy plus a bushing.

[0008] Preferably, the heat dissipation housing is a skived-tooth heat dissipation housing.

[0009] Preferably, the number of the slides is 6.

[0010] Preferably, the number of the slides is 8.

[0011] Preferably, the number of the slides is ten.

[0012] Preferably, the pressure sensor is replaced by a pressure relief valve, and the user manually controls the motor speed according to the gas consumption.

[0013] The beneficial effects of the present invention are: 1. Simple structure, few parts and low cost; 2. Easy to repair and maintain; 3. Compared with the air compressor of the same volume, this application has higher efficiency and smaller volume; 4. No vibration, no buffer tank, can be integrated into equipment that requires a built-in air pump, making its design smaller and lighter, and can also reduce damage to components due to vibration; 5. Automatically adjust the motor speed according to the gas volume and pressure of the user, which is more energy-saving and environmentally friendly; 6. In the field of mobile use, it can be miniaturized and micronized, lighter in weight, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 An expanded view of a sliding vane air compressor provided in Example 1 of the present invention; Figure 2 A schematic structural diagram of a vane air compressor provided in Example 1 of the present invention; Figure 3 A schematic structural diagram of a vane air compressor provided in Example 2 of the present invention; Figure 4 This is a schematic structural diagram of a vane air compressor provided in Example 3 of the present invention.

[0016] Explanation of reference numerals: 1. front cover; 2. air hole; 3. slide; 4. heat dissipation housing; 5. rear cover; 6. motor; 7. pressure sensor; 8. control board. Implementation

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1, as Figure 1 to Figure 2 As shown, a vane air compressor includes a front cover 1, an impeller shaft, a rear cover 5, a motor 6 and a control board 8, wherein the impeller shaft is connected to the output shaft of the motor 6, the front cover 1 and the rear cover 5 are arranged on both sides of the impeller shaft, the front cover 1 is provided with an air hole 2, the rear cover 5 is provided with an air hole 2, both air holes 2 are connected to a pressure sensor 7 through an air pipe, the control board 8 is connected to the pressure sensor 7, the control board 8 controls the start and stop and the speed of the motor 6 according to the signal of the pressure sensor 7, and obtains the required air volume and air pressure, and 6 vanes 3 are arranged in the impeller shaft.

[0019] Furthermore, a bearing steel bushing is arranged outside the impeller shaft, and a heat dissipation shell 4 is arranged on the bearing steel bushing.

[0020] Furthermore, the heat dissipation housing 4 is made of one of cast iron, carbon steel, and aluminum alloy with a bushing.

[0021] Furthermore, the heat dissipation housing 4 is a skived-tooth heat dissipation device.

[0022] When in use, the design structure is simple, the degree of integration is high, the repair and maintenance are simple, and the coaxial design can be integrated on the motor 6; The manufacturing process is simple and the cost is low. The air inlet and outlet holes 2 are on the end cover, which reduces the wear of the slider due to the opening of the shell. Stable gas supply, no need for buffer tank, lightweight; The motor speed can be adjusted according to the gas consumption and gas pressure of the user, which can achieve energy saving. It can be miniaturized and micronized.

[0023] Embodiment 2, as Figure 3 As shown, the difference from Example 1 is that the number of slide vanes 3 is 8, the small hole is the exhaust position, and when the slide vane 3 rotates to the small hole, the upper chamber and the lower chamber will be connected in series, and the high pressure air will flow back to the low pressure air.

[0024] Embodiment 3, as Figure 4As shown, the difference from Example 1 is that the number of slides 3 is 10, the more chambers there are between slides 3, the less reflux caused by air pressure and the higher the air pressure. The number of slides 3 and the position of the exhaust openings are designed according to the user's gas consumption and gas pressure.

[0025] Embodiment 4 differs from Embodiment 1 in that the pressure sensor 7 is replaced by a pressure relief valve, and the user manually controls the speed of the motor 6 according to the gas consumption, thereby realizing both automatic control and manual control of the device, and selecting different control modes according to user needs.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sliding vane air compressor, characterized in that: It includes a front end cover, an impeller shaft, a rear end cover, a motor and a control board. The impeller shaft is connected to the output shaft of the motor. The front end cover and the rear end cover are arranged on both sides of the impeller shaft. The front end cover is provided with an air hole, and the rear end cover is provided with an air hole. Both air holes are connected to a pressure sensor through an air pipe. The control board is connected to the pressure sensor. The control board controls the start and stop of the motor and the speed according to the signal of the pressure sensor to obtain the required air volume and air pressure. A plurality of slides are arranged in the impeller shaft.

2. A sliding vane air compressor according to claim 1, characterized in that: A bearing steel bushing is arranged outside the impeller shaft, and a heat dissipation housing is arranged on the bearing steel bushing.

3. A sliding vane air compressor as claimed in claim 2, characterized in that: The heat dissipation housing is made of one of cast iron, carbon steel, and aluminum alloy with a bushing.

4. A sliding vane air compressor as claimed in claim 2, characterized in that: The heat dissipation housing is a skived-tooth heat dissipation system.

5. A sliding vane air compressor as claimed in claim 2, characterized in that: The number of the slides is 6.

6. A sliding vane air compressor as claimed in claim 2, characterized in that: The number of the slides is 8.

7. A sliding vane air compressor as claimed in claim 2, characterized in that: The number of the slides is 10.

8. The vane air compressor according to claim 1, characterized in that: The pressure sensor is replaced by a pressure relief valve, and the user manually controls the motor speed according to the gas consumption.

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