CN216699704U

CN216699704U - Inside wind path structure of explosion-proof machine

Info

Publication number: CN216699704U
Application number: CN202123448041.1U
Authority: CN
Inventors: 蔡妙顺; 蔡伯璋
Original assignee: Jiangsu Pinxing Explosion Proof Motor Co ltd
Current assignee: Jiangsu Pinxing Explosion Proof Motor Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-07
Anticipated expiration: 2031-12-31

Abstract

The application relates to the technical field of explosion-proof motors, in particular to an internal wind path structure of an explosion-proof motor, which comprises the explosion-proof motor, wherein the explosion-proof motor comprises an explosion-proof shell and a motor arranged in the explosion-proof shell, and the top wall of the explosion-proof shell is provided with an air inlet and an air outlet; the explosion-proof shell is internally provided with a plurality of limiting plates for clamping the motor in the explosion-proof shell, the limiting plates are positioned between the air inlet and the air outlet, the limiting plates are provided with heat dissipation grooves, the heat dissipation grooves on two adjacent limiting plates are staggered up and down, a circulation air path is formed between the limiting plates through the heat dissipation grooves, and the circulation air path is communicated with the air inlet and the air outlet; explosion-proof housing top is provided with the ventilation subassembly of usefulness of ventilating, ventilation subassembly with circulation wind path intercommunication, this application has the effect that improves the radiating effect to explosion-proof machine.

Description

Inside wind path structure of explosion-proof machine

Technical Field

The application relates to the technical field of explosion-proof motors, in particular to an internal air path structure of an explosion-proof motor.

Background

The explosion-proof motor is a motor which can be used in flammable and explosive places, and does not generate electric sparks during operation. The explosion-proof motor is mainly used in coal mine, petroleum and natural gas, petrochemical industry and chemical industry. In addition, the method is widely applied to the departments of textile, metallurgy, urban gas, traffic, grain and oil processing, paper making, medicine and the like. Explosion-proof motors are used as main power equipment, and are generally used for driving pumps, fans, compressors, other transmission machines and the like.

The explosion-proof motor comprises a rotor and a stator, and the working principle of the explosion-proof motor is that an electric coil is utilized to generate a rotating magnetic field and acts on the rotor to form magnetoelectric power rotating torque, so that the rotor rotates in the stator. The explosion-proof motor adopts an explosion-proof shell to separate an electric part which can generate sparks, electric arcs and dangerous temperature from a surrounding explosive gas mixture. However, such housings are not sealed and the surrounding explosive gas mixture may enter the interior of the motor through gaps between the mating surfaces of the housing portions. When the explosion-proof shell of the motor is contacted with ignition sources such as sparks, electric arcs, dangerous high temperature and the like in the shell, the explosion can occur, the explosion-proof shell of the motor cannot be damaged or deformed, and when explosion flame or incandescent gas is transmitted out through a joint surface gap, the explosive gas mixture around cannot be ignited, so that the explosion-proof effect is achieved.

In order to solve the problems, the inventor thinks that the explosion releases a large amount of energy in a very short time to generate high temperature, so that the temperature of the rotor and the stator is increased, and the normal work of the motor is influenced when the temperature is overheated, so that the heat needs to be dissipated timely.

SUMMERY OF THE UTILITY MODEL

In order to improve the radiating effect to explosion proof machine, the application provides an inside wind path structure of explosion proof machine.

The application provides a pair of inside wind path structure of explosion proof machine adopts following technical scheme:

an internal air path structure of an explosion-proof motor comprises the explosion-proof motor, wherein the explosion-proof motor comprises an explosion-proof shell and a motor arranged in the explosion-proof shell, and an air inlet and an air outlet are formed in the top wall of the explosion-proof shell;

the explosion-proof shell is internally provided with a plurality of limiting plates for clamping the motor in the explosion-proof shell, the limiting plates are positioned between the air inlet and the air outlet, the limiting plates are provided with heat dissipation grooves, the heat dissipation grooves on two adjacent limiting plates are staggered up and down, a circulation air path is formed between the limiting plates through the heat dissipation grooves, and the circulation air path is communicated with the air inlet and the air outlet;

the top of the explosion-proof shell is provided with a ventilation assembly for ventilation, and the ventilation assembly is communicated with the circulation air path.

Through adopting above-mentioned technical scheme, the ventilation subassembly leads to in explosion-proof housing with wind through explosion-proof housing's air intake, and wind circulates in the circulation wind path that a plurality of limiting plate formed realizes ventilation cooling to explosion-proof motor, and the air outlet on the explosion-proof housing of rethread is discharged, and then improves the radiating effect to explosion-proof motor.

Optionally, the ventilation assembly includes a wind guide portion disposed on the top of the explosion-proof housing and communicated with the circulation wind path, a ventilation portion disposed on one side of the wind guide portion and communicated with the wind guide portion, and a ventilation member disposed in the ventilation portion, a plurality of air outlet holes are disposed on a side wall of the wind guide portion away from the ventilation portion, and the wind guide portion is fixedly connected with the explosion-proof housing through a plurality of connection assemblies.

By adopting the technical scheme, the ventilation part is used for guiding wind generated by the ventilation part into the wind guiding part, the wind guiding part is used for guiding the wind in the ventilation part into the circulation wind path in the explosion-proof shell, so that the ventilation and the heat dissipation of the explosion-proof motor are realized, the connecting assembly is used for realizing the relative fixation of the wind guiding part and the explosion-proof shell, and the possibility of relative displacement between the wind guiding part and the explosion-proof shell caused by overlarge wind quantity is avoided as much as possible.

Optionally, the ventilation member includes an axial flow fan, the ventilation member is symmetrically provided with two, and the two ventilation members are arranged in parallel.

Through adopting above-mentioned technical scheme, two fans that the type number is the same and the rotational speed equals connect the back in parallel, and the amount of wind is about 90% of two fan amount of wind when the amount of wind is the highest, and the wind pressure equals the pressure of single fan, has increased the air volume in the ventilation subassembly when not increasing the wind pressure, has further improved the ventilation radiating effect to explosion-proof machine.

Optionally, a plurality of flow deflectors are arranged at the communication port of the air guide part and the ventilation part.

By adopting the technical scheme, the flow deflector plays the roles of shunting and guiding, the flow deflector shunts the pressure of the ventilation part for slowing down the ventilation part for ventilation in the ventilation part, and the air guide is led into the ventilation part, and simultaneously the vibration and abnormal sound of the air pipe are reduced, so that the noise generated during the working of the ventilation assembly is reduced.

Optionally, the connecting assembly includes a fixing plate fixed on one side of the explosion-proof housing close to the top wall, a fixing seat fixed on a side wall of the air guide portion facing the explosion-proof housing, and a locking portion disposed between the fixing plate and the fixing seat.

By adopting the technical scheme, the fixing plate and the fixing base are locked and fixed through the locking part, so that the relative fixation of the explosion-proof shell and the air guide part is realized, and the possibility of air leakage caused by relative displacement between the explosion-proof shell and the air guide part is reduced.

Optionally, two mounting holes for mounting the ventilation piece are symmetrically formed in the outer wall of the ventilation portion, and a dust screen is arranged at the position, corresponding to the opening of the mounting hole, of the outer wall of the ventilation portion.

Through adopting above-mentioned technical scheme, the dust screen has reduced the ventilation unit during operation inflammable and explosive material and has been sucked the possibility that causes the fire incident in the explosion-proof motor, has promoted the security of device.

Optionally, follow in the explosion-proof housing explosion-proof machine axis direction wears to be equipped with a plurality of reference column, a plurality of the reference column wears to establish the limiting plate, the reference column with be interference fit between the limiting plate.

Through adopting above-mentioned technical scheme, the reference column is convenient for install the location to the limiting plate, has reduced the limiting plate slope when having improved the installation effectiveness of limiting plate and has leaded to the circulation wind path possibility of leaking out, adopts interference fit between reference column and the limiting plate, has reduced the too big limiting plate that leads to of amount of wind and has taken place the possibility of removing, has realized the dismantled setting of limiting plate simultaneously.

Optionally, the explosion-proof shell and the outer wall of the air guide part are provided with a plurality of ear plates.

Through adopting above-mentioned technical scheme, explosion-proof machine and ventilation module weight are great usually, and it is comparatively inconvenient to remove the installation, is convenient for hoist and mount explosion-proof machine and ventilation module through the otic placode, improves the installation effectiveness of device.

In summary, the present application includes at least one of the following beneficial technical effects:

1. form the circulation wind path through forming between a plurality of limiting plate and explosion-proof housing inner wall and motor, realize the ventilation to in the circulation wind path through the ventilation subassembly, and then accomplish the ventilation and heat dissipation to the motor, improve the radiating effect to explosion-proof machine.

2. Through the ventilation piece that connects in parallel and set up, improved the ventilation volume of ventilation subassembly under the unchangeable prerequisite of wind pressure, improved the ventilation cooling effect to explosion-proof machine of ventilation subassembly.

Drawings

Fig. 1 is a schematic axial view showing the overall structure of the explosion-proof motor and the ventilation assembly in the embodiment.

Fig. 2 is a schematic axial sectional view showing the internal air path structure of the explosion-proof motor in this embodiment.

Reference numerals: 1. an explosion-proof motor; 11. an explosion-proof housing; 12. a motor; 2. a limiting plate; 3. a heat sink; 4. an air inlet; 5. an air outlet; 6. a ventilation air passage; 7. a positioning column; 8. a ventilation assembly; 81. a wind guide part; 811. a wind guide box; 812. a partition plate; 82. a ventilation portion; 83. a ventilation member; 9. a first ventilation cavity; 10. a second vent chamber; 11. a separation chamber; 12. a first vent; 13. a second vent; 14. an air outlet; 15. a communicating groove; 16. mounting holes; 17. a flow deflector; 18. a connecting assembly; 181. a fixing plate; 182. a fixed seat; 183. a locking portion; 19. a dust screen; 20. an ear plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses inside wind path structure of explosion-proof machine.

Referring to fig. 1, the internal air path structure of the explosion-proof motor comprises an explosion-proof motor 1 and a ventilation assembly 8 installed on the explosion-proof motor 1, wherein the ventilation assembly 8 is used for ventilating and radiating heat for a motor 12 in the explosion-proof motor 1.

Referring to fig. 1 and 2, explosion-proof machine 1 includes explosion-proof housing 11 and motor 12, and motor 12 supports the frame through limiting plate 2 and establishes in explosion-

proof housing

11, and 2 intervals of limiting plate are provided with threely in this embodiment, have all seted up radiating groove 3 on limiting plate 2, and radiating groove 3 on two adjacent limiting plates 2 is crisscross about offering, and radiating groove 3 who leans on is located one side that limiting plate 2 is close to explosion-proof housing 11 roof, and radiating groove 3 who leans on is located one side that limiting plate 2 is close to explosion-proof housing 11 diapire.

Referring to fig. 2, air intake 4 and air outlet 5 have been seted up on explosion-proof housing 11 roof, three limiting plate 2 is located between air intake 4 and the air outlet 5, limiting plate 2 that limiting plate 2 is close to explosion-proof housing 11 diapire one side is seted up to radiating groove 3 in this embodiment has two, air intake 4 is located between limiting plate 2 that deviates from motor 12 output shaft and the inner wall that explosion-proof housing 11 deviates from motor 12 output shaft, air outlet 5 is located between limiting plate 2 that is close to motor 12 output shaft and the inner wall that explosion-proof housing 11 is close to motor 12 output shaft, through radiating groove 3 and the 11 inner chambers of explosion-proof housing on limiting plate 2, air intake 4 and air outlet 5 form ventilation cooling's circulation wind path 6.

Refer to fig. 1 and fig. 2, wear to be equipped with a plurality of reference column 7 along motor 12 axis direction on the explosion-proof housing 11 inner wall, reference column 7 passes limiting plate 2, set up the locating hole that corresponds with reference column 7 on the limiting plate 2, adopt interference fit between locating hole and reference column 7 in this embodiment, reference column 7 is convenient for install the location to limiting plate 2, reduced the limiting plate 2 slope when having improved limiting plate 2 and leaded to the possibility that circulation wind path 6 leaks out, adopt interference fit between reference column 7 and limiting plate 2, the too big possibility that leads to limiting plate 2 to take place to remove of the amount of wind has been reduced, realized limiting plate 2 simultaneously and realized limiting plate 2's dismantled setting, and then changed motor 12.

Referring to fig. 1 and 2, the ventilation assembly 8 includes a wind guide portion 81, the wind guide portion 81 includes a wind guide box 811 and two partition plates 812, in this embodiment, the two partition plates 812 divide an inner cavity of the wind guide box 811 into a first ventilation cavity 9, a second ventilation cavity 10 and a separation cavity 11, the separation cavity 11 is located between the first ventilation cavity 9 and the second ventilation cavity 10, the first ventilation cavity 9 is located on one side of the wind guide box 811 close to an output shaft of the motor 12, and the second ventilation cavity 10 is located on one side of the wind guide box 811 departing from the output shaft of the motor 12.

Referring to fig. 2, the wind guide box 811 is located on the bottom wall of the first ventilation cavity 9 and is provided with a first ventilation opening 12 corresponding to the wind outlet 5, the wind guide box 811 is located on the bottom wall of the second ventilation cavity 10 and is provided with a second ventilation opening 13 corresponding to the wind inlet 4, the guide box is close to the outer wall of the first ventilation cavity 9 and is provided with a plurality of air outlet holes 14, the air outlet holes 14 are communicated with the inner cavity of the first ventilation cavity 9, and then the circulation of wind in the explosion-proof motor 1 and the wind guide box 811 is realized.

Referring to fig. 1 and 2, ventilation assembly 8 further includes ventilation portion 82, ventilation portion 82 is the ventilation case in this embodiment, ventilation portion 82 and wind-guiding case 811 integrated into one piece set up, ventilation portion 82 sets up the one side that deviates from motor 12 output shaft at wind-guiding case 811, ventilation portion 82 sets up perpendicular to motor 12 axis, ventilation portion 82 and wind-guiding case 811 wholly are "L" type, communication groove 15 has been seted up with the handing-over department of wind-guiding case 811 in ventilation portion 82, communication groove 15 one end communicates with the wind-guiding case 811 inner chamber, the other end of communication groove 15 communicates with the inner chamber of ventilation portion 82.

Referring to fig. 1 and 2, the ventilation assembly 8 further includes a ventilation member 83, in this embodiment, the ventilation member 83 is an axial fan, the ventilation member 83 is symmetrically provided with two ventilation members, the ventilation portion 82 deviates from the side wall of one side of the communication groove 15 and penetrates along the axis direction of the motor 12 to form the mounting hole 16, the two ventilation members 83 are symmetrically installed in the mounting hole 16, the air guide opening of the ventilation member 83 is located in the inner cavity of the ventilation box, the two ventilation members 83 are symmetrically arranged on the ventilation portion 82, parallel connection of the ventilation members 83 is achieved, the ventilation amount of the ventilation member 83 arranged in parallel is increased when the explosion-proof motor 1 ventilates, and the ventilation and heat dissipation efficiency is improved.

Referring to fig. 2, the opening of the ventilation part 82 located in the mounting hole 16 is fixed with a dust screen 19 through a bolt, and the dust screen 19 reduces the possibility of fire accidents caused by that inflammable and explosive substances are sucked into the explosion-proof motor 1 when the ventilation assembly 8 works, thereby improving the safety of the device.

Referring to fig. 2, a plurality of flow deflectors 17 are welded and fixed on the side wall of the opening of the communicating groove 15 of the ventilating portion 82 at intervals, in the embodiment, two flow deflectors 17 are arranged on each flow deflector 17, the communicating groove 15 is divided into three parts by the two flow deflectors 17, the flow deflectors 17 divide the ventilation in the ventilating portion 82 to reduce the pressure of the ventilating portion 82, and the air is guided into the air guiding portion 81 while the shaking and abnormal sound of the air pipe are reduced, so that the noise generated when the ventilating assembly 8 works is reduced.

Referring to fig. 1, wind-guiding case 811 and explosion-proof housing 11 are connected through a plurality of connecting subassembly 18 fixed connection, connecting subassembly 18 includes fixed plate 181, fixing base 182 and locking part 183, fixed plate 181 welded fastening is on the lateral wall of explosion-proof housing 11 near the roof, fixing base 182 welded fastening is on the lateral wall of wind-guiding case 811 towards explosion-proof housing 11 one side, it is fixed to lock through locking part 183 between fixed plate 181 and the fixing base 182, realize wind-guiding case 811 and explosion-proof housing 11's fixed, in this embodiment, locking part 183 adopts the locking cooperation of bolt and nut.

Referring to fig. 1, a plurality of ear plates 20 are welded on the outer walls of the explosion-proof motor 1 and the air guide box 811, so that the explosion-proof motor 1 and the ventilation assembly 8 can be conveniently hoisted through the ear plates 20, and the installation efficiency of the device is improved.

The implementation principle of the inside wind path structure of explosion-proof motor of the embodiment of this application does: offer air intake 4 and air outlet 5 on the drive casing, the limiting plate 2 and the 11 inner chambers of explosion-proof housing, air intake 4 and air outlet 5 that offer radiating groove 3 in the drive casing form circulation wind path 6, and the circulation wind path 6 in the explosion-proof housing 11 is ventilated to rethread ventilation subassembly 8, and then realizes the ventilation and heat dissipation to explosion-proof machine 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an inside wind path structure of explosion proof machine, includes explosion proof machine (1), its characterized in that: the explosion-proof motor (1) comprises an explosion-proof shell (11) and a motor (12) arranged in the explosion-proof shell (11), wherein the top wall of the explosion-proof shell (11) is provided with an air inlet (4) and an air outlet (5);

the anti-explosion shell (11) is internally provided with a plurality of limiting plates (2) for clamping the motor (12) in the anti-explosion shell (11), the limiting plates (2) are positioned between the air inlet (4) and the air outlet (5), the limiting plates (2) are provided with radiating grooves (3), the radiating grooves (3) on two adjacent limiting plates (2) are arranged in a vertically staggered manner, a plurality of limiting plates (2) form a circulation air path (6) through the radiating grooves (3), and the circulation air path (6) is communicated with the air inlet (4) and the air outlet (5);

the top of the explosion-proof shell (11) is provided with a ventilation assembly (8) for ventilation, and the ventilation assembly (8) is communicated with the circulation air path (6).

2. The internal air path structure of the explosion-proof motor as claimed in claim 1, wherein: the ventilation assembly (8) comprises a wind guide part (81) arranged at the top of the explosion-proof shell (11) and communicated with the circulation wind path (6), a ventilation part (82) arranged on one side of the wind guide part (81) and communicated with the wind guide part (81), and a ventilation piece (83) arranged in the ventilation part (82), wherein a plurality of air outlet holes (14) are formed in the side wall of one side of the wind guide part (81) departing from the ventilation part (82), and the wind guide part (81) is fixedly connected with the explosion-proof shell (11) through a plurality of connecting assemblies (18).

3. The internal air path structure of the explosion-proof motor as claimed in claim 2, wherein: the ventilating pieces (83) comprise axial flow fans, two ventilating pieces (83) are symmetrically arranged, and the two ventilating pieces (83) are arranged in parallel.

4. The internal air path structure of the explosion-proof motor as claimed in claim 2, wherein: the communicating opening of the air guiding part (81) and the ventilating part (82) is provided with a plurality of flow deflectors (17).

5. The internal air path structure of the explosion-proof motor as claimed in claim 2, wherein: the connecting assembly (18) comprises a fixing plate (181) fixed on one side, close to the top wall, of the explosion-proof shell (11), a fixing seat (182) fixed on the side wall, facing the explosion-proof shell (11), of the air guide portion (81), and a locking portion (183) arranged between the fixing plate (181) and the fixing seat (182).

6. The internal air path structure of the explosion-proof motor as claimed in claim 3, wherein: two mounting holes (16) used for mounting the ventilation piece (83) are symmetrically formed in the outer wall of the ventilation portion (82), and the outer wall of the ventilation portion (82) is located on the opening of the mounting holes (16) and is provided with a dust screen (19).

7. The internal air path structure of the explosion-proof motor as claimed in claim 1, wherein: follow in explosion-proof housing (11) explosion-proof machine (1) axis direction wears to be equipped with a plurality of reference column (7), a plurality of reference column (7) are worn to establish limiting plate (2), reference column (7) with be interference fit between limiting plate (2).

8. The internal air path structure of the explosion-proof motor as claimed in claim 2, wherein: and a plurality of ear plates (20) are arranged on the outer walls of the explosion-proof shell (11) and the air guide part (81).