High-efficiency explosion-proof three-phase asynchronous motor

Abstract

The utility model discloses a high-efficiency explosion-proof three-phase asynchronous motor, which comprises a shell and a base plate, a rubber plate is fixedly mounted on the top surface of the base plate, and a three-phase asynchronous motor body is fixedly mounted on the top surface of the rubber plate. The beneficial effects are that the closed housing, the front end cover and the rear end cover are adopted, when the three-phase asynchronous motor body works, the housing covers the outer side of the three-phase asynchronous motor body, explosion suppression is performed through the explosion suppression layer, sound absorption is performed through the mineral wool sound absorption plate, working noise is reduced, and meanwhile, in the working process, the working noise is reduced, and the service life of the motor is prolonged. Wherein one air exhaust and inflation dual-purpose pump injects outside air into the shell, the other air exhaust and inflation dual-purpose pump pumps out hot air in the shell, air flowing heat exchange is completed, the flowability of airflow is improved, the heat exchange efficiency is improved, the trouble that a large amount of noise leaks due to the fact that a heat dissipation window is formed is avoided, and the mute effect rate is remarkably improved.

Description

Technical Field

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

[0002] The speed of the rotor of the three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor winding generates electromotive force and current due to the relative motion between the rotor winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion. Compared with the single-phase asynchronous motor, the three-phase asynchronous motor has good operating performance and can save various materials. According to the different rotor structures, the three-phase asynchronous motor can be divided into cage type and winding type. The cage rotor asynchronous motor has a simple structure, reliable operation, light weight, and low price, and has been widely used.

[0003] After searching, it was found that the publication number is CN211429082U, and the name is a high-efficiency flameproof three-phase asynchronous motor. The application proposes that the traditional three-phase asynchronous motor has no flameproof setting, there are certain safety hazards, and the heat dissipation effect is poor, and the shock absorption effect is poor, which is far from meeting the current requirements of people for the product. By setting the support rod and the shock-absorbing spring, the vibration caused by the motor body during operation is effectively reduced, the loss of the motor body is reduced, and its service life is increased. By setting the silencer cavity, the noise is absorbed and the noise is reduced. By setting the heat dissipation window, the heat dissipation effect is increased and the service life of the motor body is improved. By setting the first reinforcement rib and the second reinforcement rib, the support effect of the motor body is increased to make it more stable. However, the application opens a heat dissipation window at the end cover, and the working noise will spread through the heat dissipation window into the working environment, resulting in a poor mute effect and affecting the mute efficiency. Further improvements can be made. At the same time, the heat dissipation effect is not high only by relying on the heat dissipation window, and further improvements can be made.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a high-efficiency flameproof three-phase asynchronous motor, which has the advantage of improving the quietness effect, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned advantage of improving the mute effect, the specific technical solution adopted by the utility model is as follows:

[0009] A high-efficiency flameproof three-phase asynchronous motor comprises a shell and a base plate, a rubber plate is fixedly mounted on the top surface of the base plate, and a three-phase asynchronous motor body is fixedly mounted on the top surface of the rubber plate through a motor seat, and a shell is fixedly mounted on the outer side of the three-phase asynchronous motor body located on the top surface of the base plate, a flameproof layer is fixedly mounted on the inner wall of the shell, and a mineral wool sound-absorbing board is fixedly mounted on the other side surface of the flameproof layer, side boxes are fixedly mounted on both side surfaces of the shell, and a vacuum and inflation dual-purpose pump is fixedly mounted inside the side box, and the input end and output end of the vacuum and inflation dual-purpose pump are respectively connected with a first air supply pipe and a second air supply pipe, the first air supply pipe penetrates the side box and extends to the outside of the side box, the second air supply pipe penetrates the shell and extends to the inside of the mineral wool sound-absorbing board, and a front end cover and a rear end cover are fixedly mounted on the front facade and the back facade of the shell respectively.

[0010] Furthermore, explosion-proof layers are fixedly installed on the inner surfaces of the front cover and the rear cover, and mineral wool sound-absorbing panels are fixedly installed on the other sides of the explosion-proof layers of the front cover and the rear cover.

[0011] Furthermore, a clearance hole is provided on the surface of the front end cover corresponding to the main shaft position of the three-phase asynchronous motor body, and the clearance hole is rotatably connected to the main shaft of the three-phase asynchronous motor body through a sealed bearing.

[0012] Furthermore, a sound-absorbing layer is pasted on the inner wall of the side box, the material of the sound-absorbing layer is glass fiber felt, and the thickness of the sound-absorbing layer is not less than 3 cm.

[0013] Furthermore, the thickness of the mineral wool sound absorbing board is not less than 5 cm, and the mineral wool sound absorbing board is bonded and fixed to the explosion-proof layer.

[0014] Furthermore, the shell is fixedly connected to the base plate by bolts.

[0015] Furthermore, the thickness of the rubber sheet is not less than 2 cm.

[0016] Furthermore, the front end cover and the rear end cover are fixedly connected to the shell by bolts.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a high-efficiency flameproof three-phase asynchronous motor, which has the following beneficial effects:

[0019] (1) The utility model adopts a closed shell, front cover and rear cover. When the three-phase asynchronous motor body is working, the shell cover is arranged on the outside of the three-phase asynchronous motor body, and is explosion-proofed by the explosion-proof layer, and is sound-absorbing by the mineral wool sound-absorbing board to reduce the working noise. At the same time, during the operation, one of the air-exhausting and air-inflating dual-purpose pumps injects external air into the shell, and the other air-exhausting and air-inflating dual-purpose pump draws out the hot air inside the shell to complete the air flow heat exchange, improve the fluidity of the air flow, and then improve the heat exchange efficiency. The device avoids the trouble of opening a heat dissipation window to cause a large amount of noise to leak out, and significantly improves the quietness efficiency.

[0020] (2) The utility model adopts a side box, and the air-extraction and inflation dual-purpose pump is located in the side box. A sound-absorbing layer is pasted on the inner wall of the side box to absorb the working noise of the air-extraction and inflation dual-purpose pump, thereby further reducing noise diffusion and further improving the quieting efficiency. At the same time, a rubber plate is fixedly installed between the three-phase asynchronous motor body and the base plate to play a shock-absorbing role. The structure is simpler and installation and disassembly are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the internal structure of a high-efficiency flameproof three-phase asynchronous motor proposed by the utility model;

[0023] Figure 2 This is the front view of a high-efficiency flameproof three-phase asynchronous motor proposed by the utility model;

[0024] Figure 3 This is a back view of a high-efficiency flameproof three-phase asynchronous motor proposed by the utility model;

[0025] Figure 4 The utility model discloses an external structure diagram of a high-efficiency flameproof three-phase asynchronous motor.

[0026] In the figure:

[0027] 1. Shell; 2. Flameproof layer; 3. Three-phase asynchronous motor body; 4. Mineral wool sound-absorbing board; 5. Motor seat; 6. Rubber sheet; 7. Base plate; 8. Side box; 9. Sound-absorbing layer; 10. Air extraction and inflation dual-purpose pump; 11. First air supply pipe; 12. Second air supply pipe; 13. Front cover; 14. Rear cover. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a high-efficiency flameproof three-phase asynchronous motor is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to an embodiment of the utility model, a high-efficiency flameproof three-phase asynchronous motor comprises a casing 1 and a base plate 7, a rubber plate 6 is fixedly mounted on the top surface of the base plate 7, and a three-phase asynchronous motor body 3 is fixedly mounted on the top surface of the rubber plate 6 through a motor seat 5, and the outer side of the three-phase asynchronous motor body 3 is located on the top surface of the base plate 7 and the casing 1 is fixedly mounted, a flameproof layer 2 is fixedly mounted on the inner wall of the casing 1, which is a material that has been disclosed in the art and will not be described in detail herein, and a mineral wool sound-absorbing board 4 is fixedly mounted on the other side surface of the flameproof layer 2, side boxes 8 are fixedly mounted on the two side surfaces of the casing 1, and a vacuum and inflation dual-purpose pump 10 is fixedly mounted inside the side box 8, and the input end and output end of the vacuum and inflation dual-purpose pump 10 are respectively connected with a first air supply pipe 11 and a second air supply pipe 12, the first air supply pipe 11 passes through the side box 8 and extends to the outside of the side box 8, the second air supply pipe 12 passes through the casing 1 and extends to the inside of the mineral wool sound-absorbing board 4, and the front and back facades of the casing 1 are respectively fixedly mounted with front The cover 13 and the rear end cover 14, when the three-phase asynchronous motor body 3 is working, the shell 1 is covered on the outside of the three-phase asynchronous motor body 3, and is flameproofed by the flameproof layer 2, and sound is absorbed by the mineral wool sound-absorbing board 4 to reduce the working noise. At the same time, during the working process, one of the air-exhausting and air-inflating dual-purpose pumps 10 injects external air into the shell 1, and the other air-exhausting and air-inflating dual-purpose pump 10 extracts the hot air inside the shell 1 to complete the air flow heat exchange, improve the fluidity of the air flow, and thus improve the heat exchange efficiency. This device avoids the trouble of opening a heat dissipation window to cause a large amount of noise to leak out, and significantly improves the mute efficiency. At the same time, the air-exhausting and air-inflating dual-purpose pump 10 is located in the side box 8, and the sound-absorbing layer 9 is pasted on the inner wall of the side box 8 to absorb the working noise of the air-exhausting and air-inflating dual-purpose pump 10, further reducing the noise diffusion and further improving the mute efficiency. At the same time, a rubber plate 6 is fixedly installed between the three-phase asynchronous motor body 3 and the base plate 7 to play a shock-absorbing role, with a simpler structure and more convenient installation and disassembly.

[0031] In one embodiment, the inner surfaces of the front cover 13 and the rear cover 14 are fixedly installed with an explosion-proof layer 2, and the other side of the explosion-proof layer 2 of the front cover 13 and the rear cover 14 are fixedly installed with a mineral wool sound-absorbing panel 4, which also plays the role of explosion-proof and sound-absorbing, thereby improving the silencing and explosion-proof efficiency.

[0032] In one embodiment, a clearance hole is opened on the surface of the front end cover 13 corresponding to the main shaft position of the three-phase asynchronous motor body 3, and the clearance hole is rotatably connected to the main shaft of the three-phase asynchronous motor body 3 through a sealed bearing to facilitate the normal operation of the three-phase asynchronous motor body 3.

[0033] In one embodiment, a sound absorbing layer 9 is pasted on the inner wall of the side box 8. The material of the sound absorbing layer 9 is glass fiber felt, and the thickness of the sound absorbing layer 9 is not less than 3 cm. It is a common sound absorbing material and will not be described in detail here.

[0034] In one embodiment, the thickness of the mineral wool sound absorbing board 4 is not less than 5 cm, and the mineral wool sound absorbing board 4 is bonded and fixed to the explosion-proof layer 2. It is a common sound absorbing material, and the staff can cut and splice it according to the shape of the shell 1, which will not be described in detail here.

[0035] In one embodiment, the housing 1 is fixedly connected to the base plate 7 by bolts, which is a common installation structure.

[0036] In one embodiment, the thickness of the rubber sheet 6 is not less than 2 cm to improve the shock absorption efficiency.

[0037] In one embodiment, the front cover 13 and the rear cover 14 are fixedly connected to the housing 1 by bolts, which is a common fixing structure.

[0038] Working principle:

[0039] When the three-phase asynchronous motor body 3 is working, the shell 1 is covered on the outside of the three-phase asynchronous motor body 3, and is flameproofed by the flameproof layer 2, and sound is absorbed by the mineral wool sound-absorbing board 4 to reduce working noise. At the same time, during the working process, one of the air-exhausting and air-inflating dual-purpose pumps 10 injects external air into the shell 1, and the other air-exhausting and air-inflating dual-purpose pump 10 extracts the hot air inside the shell 1 to complete the air flow heat exchange, improve the fluidity of the air flow, and thus improve the heat exchange efficiency. This device avoids the trouble of opening a heat dissipation window to cause a large amount of noise to leak out, and significantly improves the mute efficiency. At the same time, the air-exhausting and air-inflating dual-purpose pump 10 is located in the side box 8, and the sound-absorbing layer 9 is pasted on the inner wall of the side box 8 to absorb the working noise of the air-exhausting and air-inflating dual-purpose pump 10, further reducing noise diffusion and further improving the mute efficiency. At the same time, a rubber plate 6 is fixedly installed between the three-phase asynchronous motor body 3 and the base plate 7 to play a shock-absorbing role, with a simpler structure and more convenient installation and disassembly.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency flameproof three-phase asynchronous motor, characterized in that: The invention comprises a housing (1) and a base plate (7), wherein a rubber plate (6) is fixedly mounted on the top surface of the base plate (7), and a three-phase asynchronous motor body (3) is fixedly mounted on the top surface of the rubber plate (6) through a motor seat (5), and a housing (1) is fixedly mounted on the outer side of the three-phase asynchronous motor body (3) located on the top surface of the base plate (7), an explosion-proof layer (2) is fixedly mounted on the inner wall of the housing (1), and a mineral wool sound-absorbing board (4) is fixedly mounted on the other side surface of the explosion-proof layer (2), and side boxes ( 8), and a vacuum and inflation dual-purpose pump (10) is fixedly installed inside the side box (8), and the input end and output end of the vacuum and inflation dual-purpose pump (10) are respectively connected with a first air supply pipe (11) and a second air supply pipe (12), the first air supply pipe (11) passes through the side box (8) and extends to the outside of the side box (8), the second air supply pipe (12) passes through the outer shell (1) and extends to the inside of the mineral wool sound-absorbing board (4), and the front and rear surfaces of the outer shell (1) are respectively fixedly installed with a front cover (13) and a rear cover (14).

2. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: The inner surfaces of the front cover (13) and the rear cover (14) are both fixedly mounted with a flameproof layer (2), and the other sides of the flameproof layer (2) of the front cover (13) and the rear cover (14) are both fixedly mounted with a mineral wool sound absorbing board (4).

3. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: A clearance hole is provided on the surface of the front end cover (13) at a position corresponding to the main shaft of the three-phase asynchronous motor body (3), and the clearance hole is rotatably connected to the main shaft of the three-phase asynchronous motor body (3) via a sealed bearing.

4. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: A sound absorbing layer (9) is pasted on the inner wall of the side box (8); the material of the sound absorbing layer (9) is glass fiber felt, and the thickness of the sound absorbing layer (9) is not less than 3 cm.

5. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: The thickness of the mineral wool sound absorbing board (4) is not less than 5 cm, and the mineral wool sound absorbing board (4) is bonded and fixed to the explosion-proof layer (2).

6. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: The housing (1) is fixedly connected to the base plate (7) via bolts.

7. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: The thickness of the rubber sheet (6) is not less than 2 cm.

8. A high-efficiency flameproof three-phase asynchronous motor according to claim 1, characterized in that: The front end cover (13) and the rear end cover (14) are fixedly connected to the housing (1) via bolts.

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