High-power air compressor and use method thereof

Abstract

The invention discloses a high-power air compressor and a using method thereof, and relates to the technical field of air compressor equipment, the high-power air compressor comprises a main tank body, a main motor, a main rotating shaft, a first air compressor, a second air compressor, an auxiliary motor and an auxiliary rotating shaft, the first air compressor and the second air compressor are arranged on the two sides of the main motor and are in transmission connection with the main rotating shaft, the auxiliary rotating shaft is arranged at the side end of the main rotating shaft, the axis of the main rotating shaft and the axis of the auxiliary rotating shaft are located on the same straight line, and the main rotating shaft and the auxiliary rotating shaft are connected through a coupler. The auxiliary motor is arranged on the auxiliary rotating shaft and is in transmission connection with the auxiliary rotating shaft, the air outlet end of the first air compressor and the air outlet end of the second air compressor are communicated to the main tank body, and the main motor and the auxiliary motor simultaneously drive the first air compressor and the second air compressor to operate, so that the operation power of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor equipment, and in particular to a high-power air compressor and a method for using the air compressor. Background Art

[0002] An air compressor is a device used to compress gas. It is usually a device that converts the mechanical energy of an electric motor into gas pressure energy. The compressed gas generated can drive gas-using equipment to operate, such as pneumatic tools, rock drills, pneumatic picks, pneumatic wrenches, pneumatic sandblasting, etc. The air compressors in the prior art are prone to insufficient power during operation, which leads to a decrease in the air compression efficiency of the equipment and is unable to meet the normal operation of the gas-using equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a high-power air compressor and a method for using the same in view of the deficiencies in the prior art.

[0004] A high-power air compressor comprises a main tank body, a main motor, a main shaft, a first compressor, a second compressor, an auxiliary motor and an auxiliary shaft, wherein the main motor is arranged in the middle of the main shaft, the first compressor and the second compressor are arranged on both sides of the main motor and are transmission-connected to the main shaft, the auxiliary shaft is arranged at the side ends of the main shaft, the axis lines of the main shaft and the auxiliary shaft are on the same straight line, a coupling is arranged between the main shaft and the auxiliary shaft, the auxiliary motor is arranged on the auxiliary shaft and is transmission-connected to the auxiliary shaft, and the air outlet ends of the first compressor and the second compressor are connected to the main tank body.

[0005] Furthermore, two auxiliary rotating shafts are provided, and the two auxiliary rotating shafts are symmetrically arranged on both sides of the main rotating shaft. The axis lines of the auxiliary rotating shafts on both sides are on the same straight line with the axis line of the main rotating shaft. Couplings are provided between the auxiliary rotating shafts on both sides and the main rotating shaft. The two auxiliary rotating shafts are transmission-connected to the main rotating shaft. Two auxiliary motors are provided, and one auxiliary motor with a transmission connection is respectively provided on the two auxiliary rotating shafts.

[0006] Furthermore, it also includes a first air bearing, two of which are arranged on both sides of the main motor respectively, and the first air bearing is an axial bearing of the first compressor and / or the second compressor.

[0007] Furthermore, the first air bearing is a thrust bearing.

[0008] Furthermore, the two first air bearings respectively use the blade backs of the first compressor and the second compressor on both sides as bearing thrust surfaces.

[0009] Furthermore, it also includes a second air bearing, two of which are arranged on both sides of the main motor respectively, and the second air bearing is a radial bearing of the first compressor and / or the second compressor.

[0010] Furthermore, an auxiliary air bearing is provided on the auxiliary rotating shaft.

[0011] Furthermore, the main motor and the auxiliary motor have the same power.

[0012] Furthermore, it comprises a return air tank, the outlet ends of the first compressor and the second compressor are connected to the return air tank, and the outlet end of the return air tank is connected to the first air bearing, the second air bearing and the auxiliary air bearing.

[0013] A method for using a high-power air compressor comprises the following steps:

[0014] S1: Start the main motor and the auxiliary motors on both sides, drive the main shaft to run through the main motor, and drive the auxiliary shafts on both sides to rotate through the auxiliary motors, and the auxiliary shafts on both sides transmit power to the main shaft to rotate;

[0015] S2: driving the first compressor and the second compressor on both sides to operate by rotating the main shaft;

[0016] S3: External air enters the first compressor and the second compressor for compression;

[0017] S4: part of the compressed air passing through the first compressor and the second compressor is delivered to the main tank, and the other part is delivered to the return air tank;

[0018] S5: The compressed gas stored in the main tank is supplied to external gas-using equipment;

[0019] S6: The compressed gas stored in the return gas tank is supplied to the first air bearing, the second air bearing and the auxiliary air bearing.

[0020] The advantages of the present invention compared with the prior art are:

[0021] First: In this scheme, the main motor drives the main shaft to rotate, and the two auxiliary motors drive the auxiliary shafts on both sides at the same time, and then the power is transmitted to the main shaft through the auxiliary shaft, so that the power generated by the operation of a main motor and two auxiliary motors can be synchronously transmitted to the main shaft, and the main shaft drives the first compressor and the second compressor on both sides to operate to compress the air, thereby improving the operating power of the compressor.

[0022] Second: In this solution, a first air bearing, a second air bearing and an auxiliary air bearing are provided, so there is no need to add lubricating oil to the equipment, thereby reducing the risk of grease contaminating the compressed air, and the air bearing is non-contact, reducing the risk of metal friction debris contaminating the compressed air.

[0023] Thirdly, the first air bearing in this solution uses the blade backs of the first compressor and the second compressor on both sides as bearing thrust surfaces, thereby further shortening the axial dimension and making the overall structure compact.

[0024] Fourthly, a return gas tank is provided in this scheme, through which part of the compressed gas is stored, and the stored compressed gas is used in the air bearings in the first compressor and the second compressor, thereby realizing the reflux recycling of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0026] Figure 2 This is a schematic diagram of the arrangement of the return gas tank and the main tank in this scheme;

[0027] Figure 3 This is a flowchart of the process of using the compressor in this scheme.

[0028] Figure numerals: main motor 1, main rotating shaft 2, first compressor 3, second compressor 4, auxiliary motor 5, auxiliary rotating shaft 6, coupling 7, first air bearing 8, second air bearing 9, auxiliary air bearing 10, return air tank 11, main tank body 12. DETAILED DESCRIPTION

[0029] Combined with Figure 1-3As shown, a high-power air compressor comprises a main motor 1, a main shaft 2, a first compressor 3, a second compressor 4, an auxiliary motor 5 and an auxiliary shaft 6. The main motor 1 is arranged in the middle of the main shaft 2, the first compressor 3 and the second compressor 4 are arranged on both sides of the main motor 1 and are connected to the main shaft 2 in a transmission manner, two auxiliary shafts 6 are arranged, and the two auxiliary shafts 6 are symmetrically arranged on both sides of the main shaft 2. The axis center lines of the auxiliary shafts 6 on both sides are on the same straight line with the axis center line of the main shaft 2. Couplings 7 are arranged between the auxiliary shafts 6 on both sides and the main shaft 2. The two auxiliary shafts 6 are connected to the main shaft 2 in a transmission manner. The power transmission between the auxiliary shafts 6 and the main shaft 2 can be achieved through the arranged couplings 7. Two auxiliary motors 5 are arranged, and one is respectively arranged on the two auxiliary shafts 6. An auxiliary motor 5 with a transmission connection is provided. When in operation, the main motor 1 and the two auxiliary motors 5 are started, and the main shaft 2 is driven to rotate by the main motor 1. The auxiliary shafts 6 on both sides are driven simultaneously by the operation of the two auxiliary motors 5, and the power is then transmitted to the main shaft 2 through the auxiliary shafts 6, so that the power generated by the operation of the main motor 1 and the two auxiliary motors 5 can be synchronously transmitted to the main shaft 2, and the first compressor 3 and the second compressor 4 on both sides are driven by the main shaft 2 to compress the air, thereby improving the operating power of the compressor, and a main tank body 12 is provided, and the air outlet ends of the first compressor 3 and the second compressor 4 are connected to the main tank body 12, and the first compressor 3 and the second compressor 4 suck in external air and pressurize it into compressed air and then transport it to the main tank body 12 for storage.

[0030] Preferably, in order to further improve the operational stability of the device, a first air bearing 8, a second air bearing 9 and an auxiliary air bearing 10 are provided in the device;

[0031] Wherein: two first air bearings 8 are provided, and the two first air bearings 8 are respectively provided on both sides of the main motor 1, one first air bearing 8 is between the main motor 1 and the first compressor 3, and the other first air bearing 8 is between the main motor 1 and the second compressor 4. The first air bearing 8 is an axial bearing of the first compressor 3 and / or the second compressor 4, and the first air bearing 8 is a thrust bearing. Therefore, no lubricating oil needs to be added to the equipment, thereby reducing the risk of grease contaminating the compressed air, and the air bearing is non-contact, thereby reducing the risk of metal friction debris contaminating the compressed air. The two first air bearings 8 use the blade backs of the first compressor 3 and the second compressor 4 on both sides as bearing thrust surfaces, thereby further shortening the axial dimension and making the overall structure compact;

[0032] Wherein: two second air bearings 9 are provided, and the two second air bearings 9 are respectively provided on both sides of the main motor 1, and the second air bearings 9 are radial bearings of the first compressor 3 and / or the second compressor 4, so no lubricating oil needs to be added to the equipment, thereby reducing the risk of grease contaminating the compressed air, and the air bearing is non-contact type, thereby reducing the risk of friction debris of metal parts contaminating the compressed air;

[0033] Among them: the auxiliary rotating shaft 6 is provided with an auxiliary air bearing 10, which can support the auxiliary rotating shaft 6 on both sides through the auxiliary air bearing 10, thereby improving the operating stability of the equipment. At the same time, no lubricating oil is needed to be added to the equipment, thereby reducing the risk of grease contaminating the compressed air, and the air bearing is non-contact, reducing the risk of metal friction debris contaminating the compressed air.

[0034] Preferably, the main motor 1 and the auxiliary motor 5 have the same power, so during the operation of the equipment, the power generated by the main motor 1 and the auxiliary motors 5 on both sides is the same, thereby further ensuring the operating stability of the equipment.

[0035] Preferably, Figure 2 As shown, it includes a return gas tank 11, the outlet ends of the first compressor 3 and the second compressor 4 are connected to the return gas tank 11, and the outlet ends of the return gas tank 11 are connected to the first air bearing 8, the second air bearing 9 and the auxiliary air bearing 10. Part of the compressed gas is stored through the return gas tank 11, and the stored compressed gas is used in the air bearings in the first compressor 3 and the second compressor 4, thereby realizing the reflux recycling of the gas.

[0036] like Figure 3 As shown, a method for using a high-power air compressor comprises the following steps:

[0037] S1: Start the main motor 1 and the auxiliary motors 5 on both sides, the main motor 1 drives the main shaft 2 to run, the auxiliary motor 5 drives the auxiliary shafts 6 on both sides to rotate, and the auxiliary shafts 6 on both sides transmit power to the main shaft 2 to rotate;

[0038] S2: The first compressor 3 and the second compressor 4 on both sides are driven to operate by the main shaft 2;

[0039] S3: External air enters the first compressor 3 and the second compressor 4 for compression;

[0040] S4: A portion of the compressed air passing through the first compressor 3 and the second compressor 4 is delivered to the main tank 12, and the other portion is delivered to the return air tank 11;

[0041] S5: The compressed gas stored in the main tank 12 is supplied to external gas-using equipment;

[0042] S6: The compressed gas stored in the return gas tank 11 is supplied to the first air bearing 8 , the second air bearing 9 and the auxiliary air bearing 10 .

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-power air compressor, characterized in that: The invention comprises a main tank body (12), a main motor (1), a main rotating shaft (2), a first compressor (3), a second compressor (4), an auxiliary motor (5) and an auxiliary rotating shaft (6), wherein the main motor (1) is arranged in the middle of the main rotating shaft (2), the first compressor (3) and the second compressor (4) are arranged on both sides of the main motor (1) and are connected to the main rotating shaft (2) in a transmission manner, the auxiliary rotating shaft (6) is arranged at the side ends of the main rotating shaft (2), the axis lines of the main rotating shaft (2) and the auxiliary rotating shaft (6) are on the same straight line, a coupling (7) is arranged between the main rotating shaft (2) and the auxiliary rotating shaft (6), the auxiliary motor (5) is arranged on the auxiliary rotating shaft (6) and is connected to the auxiliary rotating shaft (6), and the air outlet ends of the first compressor (3) and the second compressor (4) are connected to the main tank body (12).

2. A high-power air compressor according to claim 1, characterized in that: Two auxiliary rotating shafts (6) are provided, and the two auxiliary rotating shafts (6) are symmetrically arranged on both sides of the main rotating shaft (2). The axis center lines of the auxiliary rotating shafts (6) on both sides are on the same straight line as the axis center line of the main rotating shaft (2). Couplings (7) are provided between the auxiliary rotating shafts (6) on both sides and the main rotating shaft (2). The two auxiliary rotating shafts (6) are transmission-connected to the main rotating shaft (2). Two auxiliary motors (5) are provided, and one auxiliary motor (5) for transmission connection is provided on each of the two auxiliary rotating shafts (6).

3. A high-power air compressor according to claim 1, characterized in that: It also includes a first air bearing (8), two of which are arranged, and the two first air bearings (8) are arranged on both sides of the main motor (1), respectively, and the first air bearing (8) is an axial bearing of the first compressor (3) and / or the second compressor (4).

4. A high-power air compressor according to claim 3, characterized in that: The first air bearing (8) is a thrust bearing.

5. A high-power air compressor according to claim 3, characterized in that: The two first air bearings (8) respectively use the blade backs of the first compressor (3) and the second compressor (4) on both sides as bearing thrust surfaces.

6. A high-power air compressor according to claim 3, characterized in that: It also includes a second air bearing (9), wherein two second air bearings (9) are provided, and the two second air bearings (9) are respectively provided on both sides of the main motor (1), and the second air bearing (9) is a radial bearing of the first compressor (3) and / or the second compressor (4).

7. A high-power air compressor according to claim 6, characterized in that: An auxiliary air bearing (10) is provided on the auxiliary rotating shaft (6).

8. A high-power air compressor according to claim 1, characterized in that: The main motor (1) and the auxiliary motor (5) have the same power.

9. A high-power air compressor according to claim 7, characterized in that: The invention comprises a return air tank (11), the air outlet ends of the first compressor (3) and the second compressor (4) are connected to the return air tank (11), and the air outlet end of the return air tank (11) is connected to the first air bearing (8), the second air bearing (9) and the auxiliary air bearing (10).

10. The method for using a high-power compressor according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: starting the main motor (1) and the auxiliary motors (5) on both sides, driving the main rotating shaft (2) to run through the main motor (1), driving the auxiliary rotating shafts (6) on both sides to rotate through the auxiliary motors (5), and the auxiliary rotating shafts (6) on both sides transmit power to the main rotating shaft (2) to rotate; S2: The first compressor (3) and the second compressor (4) on both sides are driven to operate by the main rotating shaft (2); S3: External air enters the first compressor (3) and the second compressor (4) for compression; S4: a portion of the compressed air passing through the first compressor (3) and the second compressor (4) is delivered to the main tank (12), and the other portion is delivered to the return air tank (11); S5: The compressed gas stored in the main tank (12) is supplied to external gas-using equipment; S6: The compressed gas stored in the return air tank (11) is supplied to the first air bearing (8), the second air bearing (9) and the auxiliary air bearing (10).

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