CN111564930A

CN111564930A - Novel explosion-proof motor heat radiation structure

Info

Publication number: CN111564930A
Application number: CN202010434126.5A
Authority: CN
Inventors: 杨晔
Original assignee: Wuxi Professional College of Science and Technology
Current assignee: Wuxi Professional College of Science and Technology
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-08-21

Abstract

The invention provides a novel explosion-proof motor heat dissipation structure which has the characteristic of good heat dissipation performance. It includes the motor, the motor top is equipped with the motor terminal box, the motor is equipped with protection casing, its characterized in that outward: the protection casing outside is equipped with uncovered water tank and water pump, the end connection uncovered water tank of intaking of water pump, the external cooling tube of the play water end of water pump, the cooling tube encircles motor housing, motor shaft and motor terminal box setting in proper order, the play water end of cooling tube is connected the shower head and is corresponded the uncovered end of uncovered water tank, it is equipped with the locating piece to correspond motor shaft department in the protection casing, encircles in the cooling tube embedding locating piece of motor shaft.

Description

Novel explosion-proof motor heat radiation structure

Technical Field

The invention relates to the technical field of motors, in particular to a novel explosion-proof motor heat dissipation structure.

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 device is mainly used in coal mines, petroleum and natural gas, petrochemical industry and chemical industry, and is generally used for driving pumps, fans, compressors, other transmission machines and the like. At present, most motor casings are made of cast iron, the cast iron has the defects of heavy mass and poor heat conductivity, and the motor generates heat after working for a long time to age circuits in a junction box of the motor, so that the motor can explode. Especially, the motor shaft can produce a large amount of heats after long-time rotation, if not in time to its heat dissipation, then can lead to the motor shaft to take place wearing and tearing scheduling problem, is unfavorable for the steady operation of motor, has shortened life.

Disclosure of Invention

Aiming at the problem of poor heat dissipation of the explosion-proof motor, the invention provides a novel heat dissipation structure of the explosion-proof motor, which has the characteristic of good heat dissipation performance.

The technical scheme is as follows: the utility model provides a novel explosion-proof machine heat radiation structure, its includes the motor, the motor top is equipped with the motor terminal box, the motor is equipped with protection casing, its characterized in that outward:

an open water tank and a water pump are arranged on the outer side of the protective cover, the water inlet end of the water pump is connected with the open water tank, the water outlet end of the water pump is externally connected with a cooling pipe, the cooling pipe is sequentially arranged around the motor shell, the motor shaft and the motor junction box, the water outlet end of the cooling pipe is connected with the spray header and corresponds to the open end of the open water tank, a positioning block is arranged in the protective cover corresponding to the motor shaft, and the cooling pipe surrounding the motor shaft is embedded into the positioning block;

it is further characterized in that: one end of the interior of the motor, which is far away from the motor shaft, is connected with a fan shaft and sleeved with a fan, and ventilation openings are formed in the motor shell and the protective cover in the air outlet direction of the fan;

the cooling pipe surrounding the motor shell is positioned between two adjacent radiating fins and is arranged around the motor shell in an S shape;

threads are arranged on the outer wall of the motor junction box corresponding to the surrounding position of the cooling pipe;

the two sides of the protective cover are both provided with heat dissipation holes.

In the structure, the water pump and the open water tank are arranged outside the protective cover, the water pump is started, the water pump pumps cooling water into the cooling pipe from the open water tank, the cooling water flows along the cooling pipe surrounding the motor shell, the motor shaft and the motor junction box to absorb heat on the motor shell, the motor shaft and the motor junction box, the cooling water with higher temperature flows into the open water tank from the spray header, and when the spray header is arranged, the cooling water flows into the open water tank, the outside cold air can cool the circulating cooling water. The fan shaft is connected and the fan is established to the cover to motor body inside one end of keeping away from the motor shaft, and the motor rotates and drives the fan, and the wind that the fan produced blows to the play water position of shower head from the vent on motor housing and the protection casing to further cooling to the cooling water after the circulation.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a sectional view of the motor of the present invention.

In the figure: 1. a base; 2. a protective cover; 3. a motor; 4. a support frame; 5. a rubber gasket; 6. a heat dissipating fin; 7. a motor shaft; 8. positioning blocks; 9. a cooling tube; 10. an open water tank; 11. a water pump; 12. a hose; 13. a shower head 14, a vent; 15. heat dissipation holes; 16. a stator; 17. a rotor; 18. a fan shaft; 19. a fan; 20. a motor junction box; 21. a cable inlet pipe; 22. mounting holes; 23. a dust-proof block.

Detailed Description

As shown in fig. 1 and 2, the novel explosion-proof motor heat dissipation structure comprises a motor 3, a protective cover 2 is arranged outside the motor 3, and heat dissipation holes 15 are formed in two sides of the protective cover 2. The top of the motor 3 is provided with a motor junction box 20, one side of the motor junction box 20 is provided with a cable inlet pipe 21, and the bottom of the protective cover 2 is connected with the base 1.

The outer side of protection casing 2 is equipped with uncovered water tank 10 and water pump 11, the end of intaking of water pump 11 passes through hose 12 and inserts in uncovered water tank 10, cooling tube 9 is connected to the play water end of water pump 11, cold water pipe 9 is the copper pipe, cooling tube 9 stretches into inside of protection casing 2 and successively encircles the motor housing, motor shaft 7 and the setting of motor terminal box 20, cooling tube 9 that encircles the motor housing is located between two adjacent radiating fin and is the S type and encircles the setting along the motor housing, it has locating piece 8 to use the bolt fastening to correspond motor shaft 7 position department in protection casing 2, it is internal fixed that cooling tube 9 embedding locating piece 8 of motor shaft 7 encircles, be equipped with the screw thread that prevents cooling tube 9 slip on the outer wall of motor terminal box 20, shower 13 is connected to the play water end of cooling tube 9, the play water position of shower 13 corresponds the.

The inside one end of keeping away from motor shaft 7 of motor 3 is connected the fan axle, and fan 19 is established to the epaxial cover of fan, all is equipped with vent 14 on corresponding motor housing and protection casing 2 in the air-out direction along fan 19 to when the motor drives fan 19 and rotates, form the ventilation passageway from motor housing to between the protection casing 2.

The working principle of the invention is as follows:

when motor 3 moves, the heat transfer that motor 3 produced is to motor housing and motor terminal box 19 on, motor shaft 7 rotates for a long time simultaneously and also can produce a large amount of heats, start water pump 11, the cooling water in water pump 11 will uncovered water tank 10 is taken out in cooling tube 9, the cooling water is along encircleing motor housing, motor shaft 7 and motor terminal box 20's cooling tube 9 flows, with motor housing, the heat on motor shaft 7 and the motor terminal box 20 is taken away, the higher cooling water of temperature passes through shower head 13 and flows back to in uncovered water tank 10 again, the area of contact of water and air can be increased in the design of shower head 13, cool down the cooling water. Meanwhile, when the motor runs, the motor shaft 7 drives the fan on the fan shaft 16 to rotate, and wind generated by the fan is blown to the water outlet position of the spray header 13 through the ventilation openings 14 on the motor shell and the protective cover 2, so that the circulated cooling water is further cooled.

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 changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a novel explosion-proof machine heat radiation structure, its includes the motor, the motor top is equipped with the motor terminal box, the motor is equipped with protection casing, its characterized in that outward:

the protection casing outside is equipped with uncovered water tank and water pump, the end connection uncovered water tank of intaking of water pump, the external cooling tube of the play water end of water pump, the cooling tube encircles motor housing, motor shaft and motor terminal box setting in proper order, the play water end of cooling tube is connected the shower head and is corresponded the uncovered end of uncovered water tank, it is equipped with the locating piece to correspond motor shaft department in the protection casing, encircles in the cooling tube embedding locating piece of motor shaft.

2. The novel explosion-proof motor heat dissipation structure of claim 1, wherein: the motor is characterized in that one end, far away from the motor shaft, of the motor is connected with a fan shaft, a fan is sleeved on the motor shaft, and ventilation openings are formed in the motor shell and the protective cover and correspond to the air outlet direction of the fan.

3. The novel explosion-proof motor heat dissipation structure of claim 2, wherein: the cooling pipe surrounding the motor shell is positioned between two adjacent radiating fins and is arranged in an S shape in a surrounding mode along the motor shell.

4. The novel explosion-proof motor heat dissipation structure of claim 3, wherein: and the outer wall of the motor junction box is provided with threads corresponding to the surrounding position of the cooling pipe.

5. The novel explosion-proof motor heat dissipation structure of claim 4, wherein: the two sides of the protective cover are both provided with heat dissipation holes.