CN218569995U - Explosion-proof motor protective housing - Google Patents

Abstract

The utility model discloses an explosion-proof motor protection shell, which relates to the field of explosion-proof motor protection shells and comprises an outer shell and an inner shell, wherein one end of the outer shell is arranged in an opening way, the other end of the outer shell is arranged in a closing way, the inside of the outer shell is fixedly connected with the inner shell through a connecting plate, a ventilation space is formed between the outer shell and the inner shell, one end of the inner shell extends out of the inside of the outer shell, and the other end of the inner shell is positioned in the outer shell and is not in contact with the inner side wall of the outer shell; the internally mounted of interior casing has explosion-proof machine, and the opening side of shell body installs the joint ring, and the internally mounted of joint ring has the filter screen. The utility model discloses a set up shell body and interior casing, can be used for the circulation air in the space of ventilating between shell body and the interior casing, at explosion proof machine's heat dissipation fan during operation, can take the air escape in the interior casing to the area air flows, realizes the heat dissipation to installing the explosion proof machine in the interior casing.

Description

Explosion-proof motor protective housing

Technical Field

The utility model relates to an explosion-proof machine protective housing field specifically is an explosion-proof machine protective housing.

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 application is very wide in some environments with more flammable and explosive gases or dust, such as: it is used in coal mine, petroleum and natural gas, petrochemical and chemical industries. It is also widely used in textile, metallurgy, city gas, traffic, grain and oil processing, paper making, medicine and other departments.

For the environment with more dust, after the explosion-proof motor is used for a long time, the outer side of the motor can be covered with a layer of very thick dust, so that the heat dissipation of the explosion-proof motor is influenced, a protective shell needs to be arranged outside the explosion-proof motor, the dust is prevented from falling on the explosion-proof motor, the existing common method is to cover a metal or wooden box body on the motor, the dust is prevented from falling on the motor, but the method covers the motor in a closed space, and the heat dissipation of the motor can be influenced.

Chinese patent with application number CN202010867134.9 discloses a servo motor protective housing for a spacecraft, which can achieve a good heat dissipation effect, but is still unsuitable for a working occasion with many dust particles, and dust also falls on a motor to affect the heat dissipation of the motor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof machine protective housing to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: an explosion-proof motor protective shell comprises an outer shell and an inner shell, wherein one end of the outer shell is provided with an opening, the other end of the outer shell is provided with a closing, the inside of the outer shell is fixedly connected with the inner shell through a connecting plate, a ventilation space is formed between the outer shell and the inner shell,

one end of the inner shell extends out of the inner part of the outer shell, and the other end of the inner shell is positioned in the outer shell and is not contacted with the inner side wall of the outer shell;

an explosion-proof motor is arranged in the inner shell,

the opening side of shell body installs the joint ring, and the internally mounted of joint ring has the filter screen.

Preferably, the rotating shaft of the heat dissipation fan of the explosion-proof motor extends to the outer side of the explosion-proof motor, and the outer side end of the rotating shaft is fixedly provided with a connecting disc,

a heat radiation fan is arranged at one end of the inner shell body extending out of the outer shell body, a connecting shaft is rotatably arranged at the rotating center of the heat radiation fan, a connecting disc is arranged at one end of the connecting shaft,

the two connecting discs are connected through bolts, and the rotating shaft can drive the heat dissipation fan to rotate and exhaust air outwards.

Preferably, the filter screen is W-shaped, and a plurality of filter holes are formed in the filter screen.

Preferably, the snap ring is directly plugged outside the open end of the outer housing.

Preferably, a filter screen is installed on the inner side wall of the ventilation space.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up shell body and interior casing, can be used for the circulation air in the space of ventilating between shell body and the interior casing, at explosion proof machine's heat dissipation fan during operation, can take the air escape in the interior casing to the area air flows, realizes the heat dissipation to installing the explosion proof machine in the interior casing.

And set up the joint ring at the open end of shell body, install the filter screen in the joint ring, can filter the dust, and the air then can enter into interior casing, so can avoid the dust to drop and pile up on explosion-proof machine to the work of dust influence explosion-proof machine is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

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

fig. 3 is a front view of the present invention.

In the figure: 1. an outer housing; 2. an inner housing; 3. a connecting plate; 4. a plenum space; 5. an explosion-proof motor; 6. a snap ring; 7. a heat dissipation fan; 8. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides an explosion-proof motor protection casing, which includes an outer casing 1 and an inner casing 2, wherein one end of the outer casing 1 is open, and the other end is closed, and air can enter the outer casing 1 from the open side. Fixed mounting of the inside corner of shell body 1 has connecting plate 3, the other end of connecting plate 3 is together fixed with the outside of interior casing 2, utilize connecting plate 3, can realize the fixed connection between shell body 1 and the interior casing 2, thereby install together the remaining shell body 1 of interior casing 2, connecting plate 3 also can fixed connection be at the lateral wall of interior casing 2 and the inside wall of shell body 1, here does not do the restriction to the position of connecting plate 3, as long as can link together interior casing 2 and shell body 1 can.

Between the outer casing 1 and the inner casing 2, a ventilation space 4 is formed, and air can enter the ventilation space 4 from the open end of the outer casing and flow inside the ventilation space 4.

One end of the inner shell 2 extends out of the inner part of the outer shell 1, the other end is positioned in the outer shell 1 and is not contacted with the inner side wall of the outer shell 1, and the gas entering the ventilation space 4 can enter the inner part of the inner shell 2.

The internally mounted of interior casing 2 has explosion proof machine 5, and explosion proof machine 5's shell is the cylinder structure, so explosion proof machine 5 all has the contact site with four inside walls of interior casing 2, then can form the space of ventilating in addition between explosion proof machine 5 and the interior casing 2 for gaseous can be in the inside circulation of interior casing 2, when the outside of explosion proof machine 5 of gas flow through, can realize the cooling to explosion proof machine 5.

Because the explosion-proof motor 5 itself has the heat dissipation fan, so when the heat dissipation fan of the explosion-proof motor 5 works, the air in the inner housing 2 can be driven to flow, in this embodiment, the heat dissipation fan of the explosion-proof motor 5 is set to be a structure capable of exhausting air to the outside, and when the explosion-proof motor 5 works, the heat dissipation fan of the explosion-proof motor 5 exhausts air to the outside, so that the flow of the air in the inner housing 2 can be accelerated.

On explosion proof machine 5's shell, also generally can set up the bellied heat dissipation strip of outside, can accelerate explosion proof machine's heat dissipation, especially have the condition that the air flows, the air is when flowing through the heat dissipation strip for explosion proof machine's heat dissipation strip radiating effect is better.

The clamping ring 6 is installed to the opening side of shell body 1, and 6 direct joints of clamping ring can also utilize bolted connection together at the open end of shell body 1 between the two. The internally mounted of joint ring 6 has filter screen 8, and filter screen 8 can filter the air that enters into in the shell body 1, especially to there being dust granule or the occasion that operational environment impurity is more, and gas is when the inside that enters into shell body 1, and gaseous impurity is for example impurity such as dust granule under filter screen 8's separation, and most is blockked in filter screen 8 department, and the air then can enter into interior casing 2 through the filter screen and cool down explosion proof machine.

In this embodiment, the filter screen 8 may be configured as a W-shaped structure or a wave-shaped structure, and a plurality of filter holes are formed on the filter screen 8. This kind of mode of setting has increased the whole area of filter screen, and when gaseous process filter screen, great granule can be located at the tip of W shape structure by the separation, and less granule then can continue to follow the air when the inside through filter screen 8, then by the separation, can realize large granule and small particle impurity's layering and filter.

Because the motor power of explosion proof machine 5 itself is to whole motor heat dissipation, and its flabellum face is less, and the condition that the amount of wind is not enough can appear in the during operation, consequently is provided with heat dissipation fan 7 in the one end that inner housing 2 stretches out shell body 1, and the rotation center of heat dissipation fan 7 rotates installs the connecting axle, and the connecting axle can take heat dissipation fan 7 to rotate together, and the one end of connecting axle is provided with the connection pad. The rotating shaft of the heat dissipation fan of the explosion-proof motor 5 extends to the outer side of the explosion-proof motor, connecting discs are fixedly mounted at the outer side end of the rotating shaft, the two connecting discs are connected through bolts, and the rotating shaft can drive the heat dissipation fan 7 to rotate. The axis of rotation is taken by the pivot of motor and is rotated, and the axis of rotation can take heat dissipation fan 7 to rotate, can outwards air exhaust when heat dissipation fan 7 rotates, and the open end of interior casing 2 is the air exit promptly, and the air exit has outside wind pressure, so the open end of interior casing 2 can not get into the air.

When the heat dissipation fan 7 rotates, the flow velocity of the gas in the inner shell 2 is accelerated, so that the air inlet volume in the outer shell 1 and the ventilation space 4 is larger, and the heat dissipation effect on the explosion-proof motor is ensured.

In order to further improve the filtering effect, a filter screen 8 is mounted on the inner side wall of the ventilating space 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides an explosion-proof motor protective housing which characterized in that: comprises an outer shell (1) and an inner shell (2), one end of the outer shell (1) is arranged in an opening way, the other end of the outer shell (1) is arranged in a closing way, the inside of the outer shell (1) is fixedly connected with the inner shell (2) through a connecting plate (3), a ventilation space (4) is formed between the outer shell (1) and the inner shell (2),

one end of the inner shell (2) extends out of the inner part of the outer shell (1), and the other end is positioned in the outer shell (1) and is not contacted with the inner side wall of the outer shell (1);

an explosion-proof motor (5) is arranged in the inner shell (2),

a clamping ring (6) is installed on the opening side of the outer shell (1), and a filter screen (8) is installed inside the clamping ring (6);

the rotating shaft of the heat radiation fan of the explosion-proof motor (5) extends to the outer side of the explosion-proof motor, and the outer side end of the rotating shaft is fixedly provided with a connecting disc,

a heat radiation fan (7) is arranged at one end of the inner shell (2) extending out of the outer shell (1), a connecting shaft is rotatably arranged at the rotating center of the heat radiation fan (7), a connecting disc is arranged at one end of the connecting shaft,

the two connecting discs are connected through bolts, and the rotating shaft can drive the heat dissipation fan (7) to rotate and exhaust air outwards.

2. An explosion-proof motor protective case according to claim 1, characterized in that: the filter screen (8) is a W-shaped filter screen, and a plurality of filter holes are formed in the filter screen (8).

3. An explosion-proof motor protective case according to claim 1, characterized in that: the clamping ring (6) is directly inserted outside the opening end of the outer shell (1).

4. An explosion-proof motor protective case according to claim 1, characterized in that: and a filter screen (8) is arranged on the inner side wall of the ventilation space (4).

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