Special casing for high-efficiency explosion-proof three-phase asynchronous motor

Abstract

The utility model provides a special casing for a high-efficiency explosion-proof three-phase asynchronous motor, which comprises a casing body, one end of the casing body is provided with a sealing cover, one end of the sealing cover is provided with a through hole, the inner wall of the through hole is provided with a disc through a fixing rod, and the surface of the disc is movably provided with a transmission shaft through a sealing bearing. According to the utility model, the sealing bearing, the transmission shaft, the impeller, the cleaning rod and the soft brush are matched for use, so that when the high-efficiency flame-proof three-phase asynchronous motor works, the fan in the motor can rotate to drive surrounding airflow, and then the impeller is driven to rotate under the action of the airflow, so that the impeller drives the transmission shaft to rotate, and the cleaning rod is driven to clean the motor. And then the transmission shaft drives the soft brush to clean impurities filtered on the surface of the filter screen through the cleaning rod, the mode is easy to operate, the cleaning rod is driven to rotate by means of energy of the motor, driving equipment needs to be additionally installed, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a special casing for a high-efficiency flameproof three-phase asynchronous electric motor. Background Art

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magneto-electrical rotation torque. The motor is mainly composed of a stator and a rotor. The direction of the force on the energized wire in the magnetic field is related to the direction of the current and the direction of the magnetic flux lines. The working principle of the motor is that the magnetic field acts on the force on the current, causing the motor to rotate.

[0003] CN212323866U discloses a high-voltage dust explosion-proof three-phase asynchronous motor casing, which knocks the dust adsorbed by the filter screen by knocking the right side of the filter screen with two billiard balls, thereby easily generating noise and the long-term knocking of the billiard balls easily damages the filter screen.

[0004] After extensive searching, it is found that in the prior art, such as publication number CN214900461U, a high-voltage dust explosion-proof three-phase asynchronous motor casing is provided, comprising a casing, the right side of the casing is detachably connected with a partition plate and a connecting cover by bolts from left to right, the right side of the connecting cover is penetrated with a plurality of annular openings distributed in parallel, the right side of the connecting cover is fixedly connected with a mounting shell, a motor is installed on the right side of the mounting plate, the output end of the motor is detachably connected with a rotating shaft, the left end of the rotating shaft penetrates the mounting plate and extends to the left side of the mounting plate, and the left side of the rotating shaft is fixedly connected with A connecting seat, a fixing ring is installed on the left side of the connecting seat, the outer wall of the fixing ring is fixedly connected to a connecting plate, the left side of the connecting plate is fixedly connected to bristles, the left side of the bristles is tightly fitted with the right side of the filter, thereby avoiding noise and damage to the filter when cleaning the dust adsorbed on the right side of the filter, thereby improving the service life of the filter. Although this utility model uses a soft brush to clean impurities on the surface of the filter, it needs to install an additional motor in the generator for driving, which goes against common sense and the manufacturing cost is too high. Therefore, further improvement is needed.

[0005] Therefore, it is necessary to provide a high-efficiency flameproof three-phase asynchronous motor special casing to solve the above-mentioned technical problems. Utility Model Content

[0006] The utility model provides a special casing for a high-efficiency flameproof three-phase asynchronous motor, which solves the problems in the background technology.

[0007] In order to solve the above technical problems, the utility model provides a high-efficiency flameproof three-phase asynchronous motor special casing, including a casing body, a sealing cover is provided at one end of the casing body, a through hole is opened at one end of the sealing cover, a disc is provided on the inner wall of the through hole through a fixing rod, a transmission shaft is movably mounted on the surface of the disc through a sealing bearing, an impeller is provided on the outer surface of the transmission shaft, a cleaning rod is provided at one end of the transmission shaft, a soft brush is provided on the surface of the cleaning rod, a cavity is opened at the other end of the sealing cover, a filter screen is provided on the surface of the cavity through a second fastener, and the soft brush is in contact with the surface of the filter screen.

[0008] Preferably, a cleaning port is provided on the outer surface of the sealing cover, and a cleaning cover is clamped on the surface of the cleaning port.

[0009] Preferably, a fixing hole is provided on the end surface of the casing body, a countersunk hole is provided on the surface of the sealing cover, and the sealing cover is fixed to the casing body by a first fastener penetrating the countersunk hole.

[0010] Preferably, a plurality of fixing rods are provided, and the plurality of fixing rods are equidistantly mounted around the circumferential side of the disc.

[0011] Preferably, a plurality of impellers are provided, and the plurality of impellers are installed at equal distances on the circumferential side of the transmission shaft.

[0012] Preferably, a plurality of the first fasteners are provided, and the plurality of first fasteners are installed at equal distances between the sealing cover and the casing body.

[0013] Compared with the related art, the high-efficiency flameproof three-phase asynchronous motor housing provided by the utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the special casing for the high-efficiency flameproof three-phase asynchronous motor is provided with a sealed bearing, a transmission shaft, an impeller, a cleaning rod and a soft brush for coordinated use, so that when the high-efficiency flameproof three-phase asynchronous motor is working, the fan inside it will rotate, thereby driving the surrounding airflow, and then under the action of the airflow, the impeller will be driven to rotate, so that the impeller drives the transmission shaft to rotate, and then the transmission shaft drives the soft brush through the cleaning rod to clean up the impurities filtered on the surface of the filter. This method is simple to operate, and uses the energy of the motor itself to drive the cleaning rod to rotate. It is necessary to install an additional driving device, which greatly reduces its manufacturing cost. By providing a cleaning port and a cleaning cover, after the engine has been working for a period of time, the staff can open the cleaning cover, so that the staff can discharge the impurities filtered out by the filter through the cleaning port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a special casing for a high-efficiency flameproof three-phase asynchronous motor provided by the utility model;

[0016] Figure 2 A schematic diagram of the disc structure of a special casing for a high-efficiency flameproof three-phase asynchronous motor provided by the utility model;

[0017] Figure 3 The utility model provides a schematic diagram of the filter structure of a special casing for a high-efficiency flameproof three-phase asynchronous motor.

[0018] Numbers in the figure:

[0019] 1. Casing body; 2. Fixing hole; 3. Sealing cover; 4. Sealing bearing; 5. Transmission shaft; 6. Impeller; 7. Cleaning rod; 8. First fastener; 9. Soft brush; 10. Countersunk hole; 11. Through hole; 12. Disc; 13. Fixing rod; 14. Cleaning cover; 15. Filter; 16. Cavity; 17. Second fastener. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0021] First embodiment

[0022] Please refer to Figure 1-3 A special casing for a high-efficiency flameproof three-phase asynchronous motor, comprising a casing body 1, a sealing cover 3 is provided at one end of the casing body 1, a through hole 11 is provided at one end of the sealing cover 3, a disc 12 is provided on the inner wall of the through hole 11 through a fixing rod 13, a transmission shaft 5 is movably mounted on the surface of the disc 12 through a sealing bearing 4, an impeller 6 is provided on the outer surface of the transmission shaft 5, a cleaning rod 7 is provided at one end of the transmission shaft 5, a soft brush 9 is provided on the surface of the cleaning rod 7, a cavity 16 is provided at the other end of the sealing cover 3, a filter screen 15 is provided on the surface of the cavity 16 through a second fastener 17, and the soft brush 9 contacts the surface of the filter screen 15.

[0023] The special casing for the high-efficiency flameproof three-phase asynchronous motor is provided with a sealed bearing 4, a transmission shaft 5, an impeller 6, a cleaning rod 7 and a soft brush 9 for coordinated use, so that when the high-efficiency flameproof three-phase asynchronous motor is working, the fan inside it will rotate, thereby driving the surrounding airflow, and then under the action of the airflow, the impeller 6 will be driven to rotate, so that the impeller 6 drives the transmission shaft 5 to rotate, and then the transmission shaft 5 drives the soft brush 9 through the cleaning rod 7 to clean up the impurities filtered on the surface of the filter screen 15. This method is simple to operate, and uses the energy of the motor itself to drive the cleaning rod 7 to rotate. It is necessary to install an additional driving device, which greatly reduces its manufacturing cost.

[0024] The working principle of a high-efficiency flameproof three-phase asynchronous motor housing provided by the utility model is as follows:

[0025] This kind of high-efficiency flameproof three-phase asynchronous motor special casing, when the high-efficiency flameproof three-phase asynchronous motor is working, the fan inside it will rotate, thereby driving the surrounding airflow, and then under the action of the airflow, drive the impeller 6 to rotate, so that the impeller 6 drives the transmission shaft 5 to rotate, and then the transmission shaft 5 drives the soft brush 9 through the cleaning rod 7 to clean up the impurities filtered on the surface of the filter 15. This method is simple to operate, and uses the energy of the motor itself to drive the cleaning rod 7 to rotate. It is necessary to install an additional driving device, which greatly reduces its manufacturing cost. By setting the cleaning port and the cleaning cover 14, after the engine has been working for a period of time, the staff can open the cleaning cover 14, so that the staff can discharge the impurities filtered out by the filter 15 through the cleaning port.

[0026] Compared with the related art, the high-efficiency flameproof three-phase asynchronous motor housing provided by the utility model has the following beneficial effects:

[0027] By setting up the sealed bearing 4, the transmission shaft 5, the impeller 6, the cleaning rod 7 and the soft brush 9 for use together, when the high-efficiency flameproof three-phase asynchronous motor is working, the fan inside it will rotate, thereby driving the surrounding airflow, and then under the action of the airflow, the impeller 6 is driven to rotate, so that the impeller 6 drives the transmission shaft 5 to rotate, and then the transmission shaft 5 drives the soft brush 9 through the cleaning rod 7 to clean up the impurities filtered on the surface of the filter 15. This method is simple to operate, and uses the energy of the motor itself to drive the cleaning rod 7 to rotate. It is necessary to install an additional driving device, which greatly reduces its manufacturing cost. By setting the cleaning port and the cleaning cover 14, after the engine has been working for a period of time, the staff can open the cleaning cover 14, so that the staff can discharge the impurities filtered out by the filter 15 through the cleaning port.

[0028] Second embodiment

[0029] Please refer to Figure 1-3 Based on the high-efficiency flameproof three-phase asynchronous motor dedicated housing provided by the first embodiment of the present application, the second embodiment of the present application proposes another high-efficiency flameproof three-phase asynchronous motor dedicated housing. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0030] Specifically, the difference of the special casing for a high-efficiency flameproof three-phase asynchronous motor provided by the second embodiment of the present application is that a cleaning port is provided on the outer surface of the sealing cover 3, and a cleaning cover 14 is clamped on the surface of the cleaning port. By setting the cleaning port and the cleaning cover 14, after the engine has been running for a period of time, the staff can open the cleaning cover 14, so that the staff can discharge the impurities filtered out by the filter net 15 through the cleaning port.

[0031] By adopting this technical solution, a fixing hole 2 is opened on the end face of the casing body 1, a countersunk hole 10 is opened on the surface of the sealing cover 3, and the sealing cover 3 is fixed to the casing body 1 by a first fastener 8 passing through the countersunk hole 10. By setting the first fastener 8, it is convenient to fix the sealing cover 3 to the casing body 1 through the first fastener 8.

[0032] With this technical solution, a plurality of fixing rods 13 are provided, and the plurality of fixing rods 13 are equidistantly mounted around the side surface of the disk 12 . By providing a plurality of fixing rods 13 , the stability of the disk 12 inside the through hole 11 is improved.

[0033] With this technical solution, multiple impellers 6 are provided, and multiple impellers 6 are installed at equal distances on the side of the transmission shaft 5. By providing multiple impellers 6, it is convenient to drive the transmission shaft 5 to rotate, thereby conveniently driving the soft brush 9 to clean the filter screen 15.

[0034] With this technical solution, a plurality of first fasteners 8 are provided, and the plurality of first fasteners 8 are installed at equal distances between the sealing cover 3 and the casing body 1. By providing a plurality of first fasteners 8, the sealing between the sealing cover 3 and the casing body 1 is improved.

[0035] It should be noted that all kinds of components used in this application document are standard parts and can be purchased on the market. The specific connection methods of each part adopt conventional means such as mature bolts, rivets and welding in the existing technology. Machinery, parts and electrical equipment all adopt conventional models in the existing technology. Circuit connections adopt conventional connection methods in the existing technology. Electrical equipment are connected to an external safe power supply, and no specific description is given here.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency flameproof three-phase asynchronous motor housing, comprising a housing body (1), characterized in that: A sealing cover (3) is provided at one end of the casing body (1), a through hole (11) is provided at one end of the sealing cover (3), a disc (12) is provided on the inner wall of the through hole (11) via a fixing rod (13), a transmission shaft (5) is movably mounted on the surface of the disc (12) via a sealing bearing (4), an impeller (6) is provided on the outer surface of the transmission shaft (5), a cleaning rod (7) is provided at one end of the transmission shaft (5), a soft brush (9) is provided on the surface of the cleaning rod (7), a cavity (16) is provided at the other end of the sealing cover (3), a filter screen (15) is provided on the surface of the cavity (16) via a second fastener (17), and the soft brush (9) is in contact with the surface of the filter screen (15).

2. A high-efficiency flameproof three-phase asynchronous motor housing according to claim 1, characterized in that: The outer surface of the sealing cover (3) is provided with a cleaning port, and the cleaning port surface is clamped with a cleaning cover (14).

3. The high-efficiency flameproof three-phase asynchronous motor housing according to claim 1 is characterized in that: The end surface of the casing body (1) is provided with a fixing hole (2), the surface of the sealing cover (3) is provided with a countersunk hole (10), and the sealing cover (3) is fixed to the casing body (1) via a first fastener (8) penetrating the countersunk hole (10).

4. The high-efficiency flameproof three-phase asynchronous motor housing according to claim 1 is characterized in that: A plurality of fixing rods (13) are provided, and the plurality of fixing rods (13) are equidistantly mounted around the circumferential side of the disc (12).

5. The high-efficiency flameproof three-phase asynchronous motor housing according to claim 1 is characterized in that: A plurality of impellers (6) are provided, and the plurality of impellers (6) are installed at equal distances on the peripheral side of the transmission shaft (5).

6. A high-efficiency flameproof three-phase asynchronous motor housing according to claim 3, characterized in that: A plurality of the first fasteners (8) are provided, and the plurality of first fasteners (8) are installed at equal distances between the sealing cover (3) and the casing body (1).

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