Explosion-proof and dust-proof high-efficiency three-phase asynchronous motor

Abstract

The utility model belongs to the technical field of three-phase asynchronous motors, and particularly relates to an explosion-proof and dust-type high-efficiency three-phase asynchronous motor, which comprises a three-phase asynchronous motor body and a rotating shaft mounted on the inner side of the three-phase asynchronous motor body, and a protective shell is fixedly mounted on the outer side of the three-phase asynchronous motor body. A dustproof protective cover is arranged on the right side of the protective shell. According to the utility model, the three-phase asynchronous motor body can be cooled by arranging the cooling box, and liquid in the cooling box can circularly flow by cooperating with the vortex-shaped pipe arranged on the heat dissipation assembly, so that heat exchange is carried out on the liquid through the vortex-shaped pipe, and the normal temperature state of the liquid is ensured; the cooling of the three-phase asynchronous motor body is facilitated, the heat dissipation effect is improved, and the condition of too high temperature rise speed is prevented; and by arranging the protective shell and the protective cover, explosion splashes can be effectively blocked, so that the surrounding safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of three-phase asynchronous motors, in particular to an explosion-proof and dust-proof high-efficiency three-phase asynchronous motor. Background Art

[0002] The three-phase asynchronous motor is a type of induction motor, which is powered by 380V three-phase AC current. Since the rotor and stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip rate, so it is called a three-phase asynchronous motor. 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.

[0003] In industrial production, especially in dangerous places such as petroleum, chemical industry, coal mines, etc., the safety and stability of equipment are of vital importance. Traditional motors working in these environments have potential explosion risks. When an explosion occurs, the explosives will splash and cause safety hazards to the surroundings.

[0004] Existing three-phase asynchronous motors are usually not equipped with flameproof structures, resulting in low safety performance. During use, the three-phase asynchronous motor has a high risk of explosion due to excessive temperature rise; at the same time, its protection effect against external dust is also poor, further affecting the normal operation of the three-phase asynchronous motor. Summary of the invention

[0005] The utility model aims to provide a flameproof and dustproof high-efficiency three-phase asynchronous motor, which has the advantages of flameproof and dustproof.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flameproof and dustproof high-efficiency three-phase asynchronous motor, comprising a three-phase asynchronous motor body and a rotating shaft installed inside the three-phase asynchronous motor body, a protective shell is fixedly installed on the outside of the three-phase asynchronous motor body, a protective cover for dust prevention is arranged on the right side of the protective shell, an annular filter for dust-proof ventilation is arranged on the outside of the protective cover, a circular filter for dust-proof ventilation is arranged on the right side of the protective cover, a cooling box for cooling is symmetrically arranged on the outside of the three-phase asynchronous motor body, a connecting box for connecting two cooling boxes is fixedly installed at the bottom of the three-phase asynchronous motor body, a heat dissipation component for heat exchange is arranged on the inside of the protective cover, and the heat dissipation component includes a vortex-shaped tube, and the vortex-shaped tube is fixedly installed on the inside of the protective cover.

[0007] For the convenience of fixation, as a preferred flameproof and dustproof high-efficiency three-phase asynchronous motor of the utility model, the heat dissipation assembly also includes a fixing rod fixedly installed on the right side of the vortex tube, and the fixing rod is fixedly installed with the circular filter.

[0008] In order to facilitate heat dissipation, as a preferred flameproof and dustproof high-efficiency three-phase asynchronous motor of the utility model, a fan blade is fixedly installed at one end of the rotating shaft, and the fan blade corresponds to the vortex tube.

[0009] In order to facilitate liquid pumping, as a flameproof and dust-proof high-efficiency three-phase asynchronous motor of the utility model, a micro water pump is fixedly installed on one side of the connecting box, and a water outlet pipe is installed at the output end of the micro water pump, and the end of the water outlet pipe away from the micro water pump is fixedly installed with the vortex tube.

[0010] In order to facilitate recycling, as a preferred flameproof and dustproof high-efficiency three-phase asynchronous motor of the utility model, a water inlet pipe is fixedly installed on the top of the cooling box, a three-way joint is fixedly installed on the outside of the water inlet pipe, and a water supply pipe is fixedly installed between the three-way joint and the vortex tube.

[0011] In order to facilitate cleaning, as a preferred flameproof and dustproof high-efficiency three-phase asynchronous motor of the utility model, the protective cover is fixedly installed with the protective shell by external screws.

[0012] For the convenience of installation, as a preferred flameproof and dustproof high-efficiency three-phase asynchronous motor of the utility model, four mounting seats are fixedly installed on the bottom of the three-phase asynchronous motor body, and the four mounting seats penetrate the bottom of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can cool down the three-phase asynchronous motor body by arranging a cooling box, and the vortex-shaped tube arranged in cooperation with the heat dissipation component can make the liquid in the cooling box circulate, so that the liquid can exchange heat through the vortex-shaped tube, thereby ensuring the normal temperature state of the liquid, facilitating cooling of the three-phase asynchronous motor body, improving the heat dissipation effect, and preventing the occurrence of a situation where the temperature rises too quickly; by arranging a protective shell and a protective cover, it is possible to effectively block explosion splashes to ensure the safety of the surroundings; by arranging an annular filter screen and a circular filter screen, it is possible to filter the dust carried by the air entering the protective cover, thereby improving the dustproof effect, ensuring the stable operation of the three-phase asynchronous motor body, and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 labor.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial cross-sectional three-dimensional structural diagram of the utility model;

[0018] Figure 3 It is a partial top view three-dimensional structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial bottom-up three-dimensional structural schematic diagram of the utility model.

[0020] In the figure: 1. protective shell; 2. protective cover; 3. annular filter; 4. circular filter; 5. connection box; 6. rotating shaft; 7. three-phase asynchronous motor body; 8. cooling box; 9. micro water pump; 10. water outlet pipe; 11. vortex pipe; 12. water pipe; 13. fan blade; 14. fixing rod; 15. three-way joint; 16. water inlet pipe; 17. mounting base. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0023] See also Figures 1 to 4A flameproof and dustproof high-efficiency three-phase asynchronous motor comprises a three-phase asynchronous motor body 7 and a rotating shaft 6 installed on the inner side of the three-phase asynchronous motor body 7, a protective shell 1 is fixedly installed on the outer side of the three-phase asynchronous motor body 7, a protective cover 2 for dust prevention is arranged on the right side of the protective shell 1, an annular filter screen 3 for dust-proof ventilation is arranged on the outer side of the protective cover 2, a circular filter screen 4 for dust-proof ventilation is arranged on the right side of the protective cover 2, a cooling box 8 for cooling is symmetrically arranged on the outer side of the three-phase asynchronous motor body 7, a connecting box 5 for connecting the two cooling boxes 8 is fixedly installed on the bottom of the three-phase asynchronous motor body 7, a heat dissipation component for heat exchange is arranged on the inner side of the protective cover 2, and the heat dissipation component comprises a vortex-shaped tube 11, and the vortex-shaped tube 11 is fixedly installed on the inner side of the protective cover 2.

[0024] In this embodiment, the annular filter 3 and the circular filter 4 are provided to filter external dust, thereby preventing dust from entering and affecting the three-phase asynchronous motor body 7 .

[0025] As a technical optimization solution of the utility model, the heat dissipation assembly also includes a fixing rod 14 fixedly installed on the right side of the vortex tube 11, and the fixing rod 14 is fixedly installed with the circular filter 4; a fan blade 13 is fixedly installed at one end of the rotating shaft 6, and the fan blade 13 corresponds to the vortex tube 11.

[0026] In this embodiment, the three-phase asynchronous motor body 7 runs, driving the rotating shaft 6 to rotate, driving the fan blades 13 to rotate, so that airflow is formed in the protective cover 2, and then the external air exchanges heat when contacting the vortex tube 11, so that the temperature of the liquid in the vortex tube 11 is maintained at room temperature, which is convenient for cooling the three-phase asynchronous motor body 7.

[0027] As a technical optimization solution of the utility model, a micro water pump 9 is fixedly installed on one side of the connection box 5, an outlet pipe 10 is installed at the output end of the micro water pump 9, and one end of the outlet pipe 10 away from the micro water pump 9 is fixedly installed with a vortex tube 11.

[0028] In this embodiment, the liquid in the connection box 5 can be pumped out by a micro water pump 9 and transported to the vortex tube 11 through the outlet pipe 10. The vortex tube 11 contacts the flowing air flow for heat exchange, thereby ensuring that the liquid is at a normal temperature.

[0029] As a technical optimization solution of the utility model, a water inlet pipe 16 is fixedly installed on the top of the cooling box 8, a three-way joint 15 is fixedly installed on the outside of the water inlet pipe 16, and a water delivery pipe 12 is fixedly installed between the three-way joint 15 and the vortex tube 11.

[0030] In this embodiment, the liquid in the vortex tube 11 can be transported to the water inlet pipe 16 through the water delivery pipe 12, and then flow back to the cooling box 8 through the water inlet pipe 16 to cool the three-phase asynchronous motor body 7.

[0031] As a technical optimization solution of the present invention, the protective cover 2 is fixedly installed with the protective shell 1 by external screws.

[0032] In this embodiment, the protective cover 2 can be removed from the right side of the protective shell 1 by rotating the external screw, so that the annular filter screen 3 and the circular filter screen 4 can be easily cleaned.

[0033] As a technical optimization solution of the utility model, four mounting seats 17 are fixedly installed on the bottom of the three-phase asynchronous motor body 7, and the four mounting seats 17 penetrate the bottom of the protective shell 1.

[0034] In this embodiment, the three-phase asynchronous motor body 7 can be installed at a designated position by passing external bolts through four mounting seats 17 .

[0035] Working principle: When the three-phase asynchronous motor body 7 is running, the rotating shaft 6 is driven to rotate by the three-phase asynchronous motor body 7, and the rotating shaft 6 drives the fan blades 13 to rotate, so that airflow is formed in the protective cover 2, and the external air will filter the dust through the annular filter 3 and the circular filter 4. The air enters and exits the protective cover 2, so that airflow is formed in the protective cover 2. At this time, the micro water pump 9 draws out the liquid in the connection box 5, and transports it to the vortex-shaped tube 11 through the outlet pipe 10. The vortex-shaped tube 11 contacts with the flowing airflow for heat exchange, and then the liquid in the vortex-shaped tube 11 is transported to the water inlet pipe 16 through the water pipe 12, and flows back to the cooling box 8 through the water inlet pipe 16, so that the cooling box 8 and the three-phase asynchronous motor body 7 are heat exchanged, thereby performing a cooling process.

[0036] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of various parts adopt the conventional means such as mature rivets and welding in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. All electrical equipment in the utility model are powered by an external power supply.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flameproof and dustproof high-efficiency three-phase asynchronous motor, comprising a three-phase asynchronous motor body (7) and a rotating shaft (6) installed inside the three-phase asynchronous motor body (7), characterized in that: A protective shell (1) is fixedly mounted on the outside of the three-phase asynchronous motor body (7); a protective cover (2) for dust prevention is arranged on the right side of the protective shell (1); an annular filter (3) for dust prevention and ventilation is arranged on the outside of the protective cover (2); a circular filter (4) for dust prevention and ventilation is arranged on the right side of the protective cover (2); a cooling box (8) for cooling is symmetrically arranged on the outside of the three-phase asynchronous motor body (7); a connecting box (5) for connecting two cooling boxes (8) is fixedly mounted on the bottom of the three-phase asynchronous motor body (7); a heat dissipation component for heat exchange is arranged on the inside of the protective cover (2); the heat dissipation component includes a vortex-shaped tube (11); and the vortex-shaped tube (11) is fixedly mounted on the inside of the protective cover (2).

2. The flameproof and dustproof high-efficiency three-phase asynchronous motor according to claim 1 is characterized in that: The heat dissipation assembly further comprises a fixing rod (14) fixedly mounted on the right side of the vortex-shaped tube (11), and the fixing rod (14) is fixedly mounted on the circular filter screen (4).

3. The flameproof and dustproof high-efficiency three-phase asynchronous motor according to claim 1 is characterized in that: A fan blade (13) is fixedly mounted on one end of the rotating shaft (6), and the fan blade (13) corresponds to the vortex tube (11).

4. The flameproof and dustproof high-efficiency three-phase asynchronous motor according to claim 1 is characterized in that: A micro water pump (9) is fixedly mounted on one side of the connection box (5), a water outlet pipe (10) is mounted on the output end of the micro water pump (9), and one end of the water outlet pipe (10) away from the micro water pump (9) is fixedly mounted on the vortex-shaped tube (11).

5. The flameproof and dustproof high-efficiency three-phase asynchronous motor according to claim 1 is characterized in that: A water inlet pipe (16) is fixedly installed on the top of the cooling box (8), a three-way joint (15) is fixedly installed on the outside of the water inlet pipe (16), and a water delivery pipe (12) is fixedly installed between the three-way joint (15) and the vortex-shaped tube (11).

6. The flameproof and dustproof high-efficiency three-phase asynchronous motor according to claim 1, characterized in that: The protective cover (2) is fixedly mounted to the protective shell (1) via external screws.

7. The flameproof and dustproof high-efficiency three-phase asynchronous motor according to claim 1 is characterized in that: Four mounting seats (17) are fixedly mounted on the bottom of the three-phase asynchronous motor body (7), and the four mounting seats (17) penetrate the bottom of the protective shell (1).

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