CN113162297A

CN113162297A - Explosion-proof motor

Info

Publication number: CN113162297A
Application number: CN202110368391.2A
Authority: CN
Inventors: 张学斌; 张赓; 陈鑫; 丁军会
Original assignee: Nanyang Explosion Proof Suzhou Special Equipment Co ltd
Current assignee: Nanyang Explosion Proof Suzhou Special Equipment Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-07-23

Abstract

The invention discloses an explosion-proof motor, which belongs to the technical field of motors and comprises a rotor shell, heat dissipation teeth, an explosion-proof cover plate, a bearing, a central shaft, a magnetic flux steel sheet, a winding coil, permanent magnets, an explosion-proof copper ring, explosion-proof threads, a hollow shaft and an electric wire, wherein the heat dissipation teeth are arranged on the outer side of the rotor shell; the invention can realize that the device can timely dissipate heat and buffer internal pressure under the conditions of reducing extra power loss and lightening mass, thereby realizing the effect of continuously outputting kinetic energy.

Description

Explosion-proof motor

Technical Field

The invention belongs to the technical field of motors, and particularly relates to an explosion-proof motor.

Background

The explosion-proof motor is a motor which can be used in inflammable and explosive environment, and is mainly used for mining coal mine, petroleum and natural gas and production and living activities such as petroleum and chemical industry. The main requirement of such motors is that no spark is released to the external environment during normal operation or in the event of a fault. The explosion-proof performance of the explosion-proof motor is mainly embodied on the design of the shell and is secondly embodied on the working principle and the characteristics inside the motor.

In the prior art, a housing is designed to be sealed, a heat sink is additionally arranged on the outer wall of the housing, a fan is further additionally arranged on a rotating shaft to promote the heat dissipation of the heat sink, and finally a filter cover is additionally arranged outside the fan. When the rotor of the motor runs at a high speed for a long time, the inside of the motor is easy to heat up and boost, so that the motor is easy to break down or even knock out, and has extra weight increment and extra power loss.

Disclosure of Invention

The purpose of the invention is as follows: an explosion-proof motor is provided to solve the above problems in the prior art.

The technical scheme is as follows: an explosion-proof motor comprises a rotor shell, heat dissipation teeth arranged on the outer side of a cylinder of the rotor shell, explosion-proof cover plates arranged on circular surfaces on two sides of the rotor shell, a bearing arranged on the inner side of the explosion-proof cover plates, a central shaft arranged on the inner side of the bearing, a magnetic flux steel sheet arranged on the outer side of the middle of the central shaft, a winding coil arranged on the magnetic flux steel sheet, permanent magnets arranged on the inner side of the cylinder of the rotor shell, explosion-proof copper rings arranged between the central shaft and the cover plates, explosion-proof threads arranged on two ends of the central shaft, a hollow shaft arranged at one end of the central shaft, an electric wire arranged inside the hollow shaft, a solid shaft arranged at the other end of the central shaft and a fixed shaft end arranged on the solid shaft; the fastening nut is arranged on the outer side of the fixed shaft end, and the bolt is arranged on the explosion-proof cover plate.

In a further embodiment, the rotor shell and the explosion-proof cover plate are made of alloy materials.

In a further embodiment, the heat dissipating teeth are evenly distributed on the rotor housing.

In a further embodiment, the number of the explosion-proof cover plate, the number of the bearing and the number of the explosion-proof copper rings are two, and the two are respectively and symmetrically located at two sides of the rotor shell.

In a further embodiment, a gap is arranged between the permanent magnet and the magnetic flux steel sheet.

In a further embodiment, the outer conductor of the winding coil is connected via the hollow shaft.

In a further embodiment, the magnetic flux steel sheets and the permanent magnets are respectively distributed on the central shaft and the inner wall of the rotor shell.

In a further embodiment, the central shaft is fixed and the rotor housing and the burst disk rotate along the central shaft.

Has the advantages that: when the explosion-proof motor works, the central shaft is fixed, the wire is connected, current generates an induction magnetic field around the magnetic flux steel sheet through the winding coil, the induction magnetic field interacts with a magnetic field around the permanent magnet, and the magnitude and the direction of acting force are determined by the electrifying current of the wire; because rotor housing and external environment direct contact, so the heat dissipation is timely, and simultaneously explosion-proof apron and explosion-proof copper ring can play the effect of buffering interior pressure and supplementary heat dissipation. The invention can realize that the device can timely dissipate heat and buffer internal pressure under the conditions of reducing extra power loss and lightening mass, thereby realizing the effect of continuously outputting kinetic energy.

Drawings

Fig. 1 is a schematic structural view of the present invention.

The reference signs are: the anti-explosion rotor comprises heat dissipation teeth 1, a rotor shell 2, an anti-explosion cover plate 3, an anti-explosion copper ring 4, a nut 5, a fixed shaft end 6, an anti-explosion thread 7, a central shaft 8, a bearing 9, a permanent magnet 10, a magnetic flux steel sheet 11, a winding coil 12, an electric wire 13, a hollow shaft 14 and a bolt 15.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the explosion-proof motor comprises a heat dissipation tooth 1, a rotor housing 2, an explosion-proof cover plate 3, an explosion-proof copper ring 4, a nut 5, a fixed shaft end 6, an explosion-proof thread 7, a central shaft 8, a bearing 9, a permanent magnet 10, a magnetic flux steel sheet 11, a winding coil 12, an electric wire 13, a hollow shaft 14 and a bolt 15.

During installation, the heat dissipation teeth 1 are arranged on the outer side of a cylinder of the rotor shell 2, the explosion-proof cover plates 3 are arranged on circular surfaces on two sides of the rotor shell 2, the bearings 9 are arranged on the inner side of the explosion-proof cover plates 3, the central shaft 8 is arranged on the inner side of the bearings 9, the central shaft 8 penetrates through the rotor shell 2, the magnetic flux steel sheets 11 are arranged on the outer side of the middle of the central shaft 8, the winding coils 12 are arranged on the magnetic flux steel sheets 11, the permanent magnets 10 are arranged on the inner side of the cylinder of the rotor shell 2, the explosion-proof copper rings 4 are arranged between the central shaft 8 and the cover plates, the explosion-proof threads 7 are arranged at two ends of the central shaft 8, the hollow shaft 14 is arranged at one end of the central shaft 8, the electric wires 13 are arranged inside the hollow shaft 14, the solid shaft is arranged at the other end of the central shaft 8, and the solid shaft end 6 is arranged on the solid shaft; the fastening nut 5 is arranged on the outer side of the fixed shaft end 6, and the bolt 15 is arranged on the explosion-proof cover plate 3.

In specific implementation, the rotor housing 2 and the explosion-proof cover plate 3 are firstly required to be made of alloy materials, so that high-efficiency heat dissipation and structural strength protection can be realized. Secondly, the heat dissipation teeth 1 are required to be evenly distributed on the rotor housing 2, so that the effect of increasing the heat dissipation efficiency can be achieved. And secondly, the number of the explosion-proof cover plates 3, the number of the bearings 9 and the number of the explosion-proof copper rings 4 are two and are respectively and symmetrically arranged at two sides of the rotor shell 2, so that the device can be symmetrically heated, pressed and stressed along the central shaft 8. And secondly, a gap is required to be arranged between the permanent magnet 10 and the magnetic flux steel sheet 11, so that more efficient rotation and heat dissipation can be realized. Secondly, the external connection of the winding coil 12 is required to be connected through the hollow shaft 14, so that the device can provide continuous power supply while running. Secondly, the magnetic flux steel sheets 11 and the permanent magnets 10 are required to be respectively distributed on the central shaft 8 and the inner wall of the rotor shell 2, so that the rotational symmetry of the rotor relative to the stator can be realized. And secondly, the rotor shell 2 and the explosion-proof cover plate 3 are required to rotate along the central shaft 8, so that the structural strength and efficient heat dissipation can be guaranteed while the device is operated. In conclusion, the device can dissipate heat in time and buffer internal pressure under the conditions of reducing extra power loss and lightening mass, thereby realizing the effect of continuously outputting kinetic energy.

The working principle is as follows: when the explosion-proof motor works, the central shaft 8 is fixed, the electric wire 13 is connected, current generates an induction magnetic field around the magnetic flux steel sheet 11 through the winding coil 12, the induction magnetic field interacts with the magnetic field around the permanent magnet 10, and the magnitude and the direction of acting force are determined by the current of the electric wire 13; because rotor housing 2 and external environment direct contact, so the heat dissipation is timely, and simultaneously explosion-proof apron 3 and explosion-proof copper ring 4 can play the effect of buffering interior pressure and supplementary heat dissipation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An explosion-proof motor is characterized by comprising a rotor shell, heat dissipation teeth arranged on the outer side of a cylinder of the rotor shell, explosion-proof cover plates arranged on circular surfaces on two sides of the rotor shell, a bearing arranged on the inner side of the explosion-proof cover plates, a central shaft arranged on the inner side of the bearing, a magnetic flux steel sheet arranged on the outer side of the middle of the central shaft, a winding coil arranged on the magnetic flux steel sheet, permanent magnets arranged on the inner side of the cylinder of the rotor shell, an explosion-proof copper ring arranged between the central shaft and the cover plates, explosion-proof threads arranged at two ends of the central shaft, a hollow shaft arranged at one end of the central shaft, an electric wire arranged in the hollow shaft, a solid shaft arranged at the other end of the central shaft and a fixed shaft end arranged on the solid shaft; the fastening nut is arranged on the outer side of the fixed shaft end, and the bolt is arranged on the explosion-proof cover plate.

2. An explosion-proof electric motor as claimed in claim 1, wherein the rotor housing and the explosion-proof cover plate are made of alloy materials.

3. An explosion-proof electric motor as claimed in claim 1, wherein the heat-dissipating teeth are evenly distributed on the rotor housing.

4. The explosion-proof motor of claim 1, wherein there are two explosion-proof cover plates, two bearings and two explosion-proof copper rings, and the two are symmetrically located at two sides of the rotor housing respectively.

5. An explosion-proof electric motor as claimed in claim 1, wherein a gap is provided between said permanent magnet and said flux steel sheet.

6. An explosion-proof electric motor as claimed in claim 1, wherein the external connection of the winding coil is connected via the hollow shaft.

7. An explosion-proof electric motor as claimed in claim 1, wherein said flux steel sheet and said permanent magnet are distributed on said central shaft and an inner wall of said rotor housing, respectively.

8. An explosion-proof electric motor as claimed in claim 1, wherein the central shaft is fixed and the rotor housing and the explosion-proof cover plate rotate along the central shaft.