CN111564930A - A new type of explosion-proof motor heat dissipation structure - Google Patents

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

A new type of explosion-proof motor heat dissipation structure

technical field

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

Background technique

An explosion-proof motor is a kind of motor that can be used in flammable and explosive places, and does not generate electric sparks during operation. Mainly used in coal mines, oil and gas, petrochemical and chemical industries, usually used to drive pumps, fans, compressors and other transmission machinery. At present, most motor casings are made of cast iron. The disadvantages of cast iron are heavy weight and poor thermal conductivity, and the long-term operation of the motor will cause the wiring in the junction box to age, which may cause the motor to explode. Especially the motor shaft can generate a lot of heat after a long time of rotation. If it is not dissipated in time, it will cause problems such as wear and tear of the motor shaft, which is not conducive to the stable operation of the motor and shortens the service life.

SUMMARY OF THE INVENTION

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

The technical solution is as follows: a new type of explosion-proof motor heat dissipation structure, which includes a motor, a motor junction box is provided on the top of the motor, and a protective cover is provided outside the motor, which is characterized in that:

An open water tank and a water pump are arranged on the outside of the protective cover, the water inlet end of the water pump is connected to the open water tank, and the water outlet end of the water pump is externally connected with a cooling pipe, and the cooling pipe surrounds the motor casing, the motor shaft and the motor junction box in turn. setting, the water outlet end of the cooling pipe is connected to the shower head 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 in the positioning block;

It is further characterized in that: one end of the motor away from the motor shaft is connected to the fan shaft and sleeved with a fan, and the motor casing and the protective cover are provided with air vents corresponding to the air outlet direction of the fan;

The cooling pipe surrounding the motor casing is located between two adjacent radiating fins and is arranged in an S shape along the motor casing;

A thread is provided on the outer wall of the motor junction box corresponding to the surrounding position of the cooling pipe;

Both sides of the protective cover are provided with cooling holes.

In the above structure of the present invention, a water pump and an open water tank are arranged outside the protective cover. When the water pump is started, the water pump pumps the cooling water from the open water tank into the cooling pipe, and the cooling water flows along the cooling pipe surrounding the motor casing, the motor shaft and the motor junction box. Flow, absorb the heat on the motor casing, motor shaft and motor junction box, and the cooling water with higher temperature flows from the sprinkler head into the open water tank. Air can cool the circulating cooling water. The inner part of the motor body is connected to the fan shaft at one end away from the motor shaft, and the fan is sleeved. The motor rotates to drive the fan, and the wind generated by the fan blows from the vent on the motor casing and the protective cover to the water outlet of the sprinkler head, so as to cool the circulating cooling water. further cooling.

Description of drawings

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

FIG. 2 is a cross-sectional view of the motor of the present invention.

In the picture: 1. Base; 2. Protective cover; 3. Motor; 4. Support frame; 5. Rubber gasket; 6. Cooling fin; 7. Motor shaft; 8. Positioning block; 9. Cooling pipe; 10. Open water tank; 11, water pump; 12, hose; 13, sprinkler head 14, vent; 15, cooling hole; 16, stator; 17, rotor; 18, fan shaft; 19, fan; 20, motor junction box ; 21. Cable inlet pipe; 22. Mounting hole; 23. Dust-proof block.

Detailed ways

As shown in FIG. 1 and FIG. 2 , a novel explosion-proof motor heat dissipation structure includes a motor 3 , a protective cover 2 is provided outside the motor 3 , and heat dissipation holes 15 are provided on both 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 to the base 1 .

The outer side of the protective cover 2 is provided with an open water tank 10 and a water pump 11. The water inlet end of the water pump 11 is connected to the open water tank 10 through a hose 12, and the water outlet end of the water pump 11 is connected to a cooling pipe 9, and the cold water pipe 9 is a copper pipe. The cooling pipe 9 extends into the interior of the protective cover 2 and is successively arranged around the motor casing, the motor shaft 7 and the motor junction box 20. The cooling pipe 9 surrounding the motor casing is located between two adjacent heat dissipation fins and surrounds the motor casing in an S shape. Setting, a positioning block 8 is fixed with bolts at the position corresponding to the motor shaft 7 in the protective cover 2, the cooling pipe 9 surrounding the motor shaft 7 is embedded in the positioning block 8 and fixed, and the outer wall of the motor junction box 20 is provided with a cooling pipe 9 to prevent sliding. The water outlet end of the cooling pipe 9 is connected to the shower head 13 , and the water outlet position of the shower head 13 corresponds to the open end of the open water tank 10 .

The inner end of the motor 3 away from the motor shaft 7 is connected to the fan shaft. The fan shaft is sleeved with a fan 19. Along the air outlet direction of the fan 19, the corresponding motor housing and the protective cover 2 are provided with air vents 14, so that the motor drives the fan. When 19 rotates, a ventilation channel is formed from the motor housing to the protective cover 2.

The working principle of the present invention is as follows:

When the motor 3 is running, the heat generated by the motor 3 is transferred to the motor casing and the motor junction box 19, and at the same time the motor shaft 7 rotates for a long time will also generate a lot of heat. Pumped into the cooling pipe 9, the cooling water flows along the cooling pipe 9 surrounding the motor casing, the motor shaft 7 and the motor junction box 20 to take away the heat on the motor casing, the motor shaft 7 and the motor junction box 20. The cooling water flows back into the open water tank 10 through the shower head 13. The design of the shower head 13 can increase the contact area between the water and the air and cool the cooling water. At the same time, when the motor is running, the motor shaft 7 drives the fan on the fan shaft 16 to rotate, and the wind generated by the fan is blown to the water outlet position of the shower head 13 through the motor casing and the vent 14 on the protective cover 2, which further reduces the circulation of the cooling water. Cool down.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person familiar with the technology can easily think of changes or replacements within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (5)

1. a novel explosion-proof motor heat dissipation structure, it comprises a motor, the top of the motor is provided with a motor junction box, and the motor is provided with a protective cover, it is characterized in that: An open water tank and a water pump are arranged on the outside of the protective cover, the water inlet end of the water pump is connected to the open water tank, and the water outlet end of the water pump is externally connected with a cooling pipe, and the cooling pipe surrounds the motor casing, the motor shaft and the motor junction box in turn. The water outlet end of the cooling pipe is connected to the shower head 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 in the positioning block. 2. A new type of explosion-proof motor heat dissipation structure according to claim 1, characterized in that: one end of the motor away from the motor shaft is connected to the fan shaft and sleeved with a fan, and the motor casing and the protective cover are corresponding to the fan There are ventilation openings in the air outlet direction. 3 . The novel explosion-proof motor heat dissipation structure according to claim 2 , wherein the cooling pipe surrounding the motor casing is located between two adjacent heat dissipation fins and is arranged in an S shape along the motor casing. 4 . 4 . The novel explosion-proof motor heat dissipation structure according to claim 3 , wherein the outer wall of the motor junction box is provided with threads corresponding to the surrounding position of the cooling pipe. 5 . 5 . The novel explosion-proof motor heat dissipation structure according to claim 4 , wherein heat dissipation holes are provided on both sides of the protective cover. 6 .

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