CN216819627U

CN216819627U - Explosion-proof motor

Info

Publication number: CN216819627U
Application number: CN202122939961.7U
Authority: CN
Inventors: 姚证
Original assignee: Shenyang Daming Motor Co ltd
Current assignee: Shenyang Daming Motor Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-06-24
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a flameproof motor, relates to the technical field of motors, and aims to solve the problem of potential safety hazard when the motor is applied to an oil-gas place.

Description

Explosion-proof motor

Technical Field

The utility model relates to the technical field of motors, in particular to an explosion-proof motor.

Background

According to the national attention and requirements on energy conservation and environmental protection, an oil gas recovery system is widely applied to a fuel oil refueling system at present, wherein the oil gas recovery system comprises an oil gas recovery pump, and the operation of the oil gas recovery pump needs to be driven by a motor.

The oil gas recovery pump is mainly applied to places with oil gas, the oil gas is combustible gas, the temperature of an internal structure of the motor can rise when the motor runs for a long time, and therefore the motor applied to the oil gas places is very unsafe and brings potential safety hazards to the application of the oil gas recovery pump.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, namely the problem that potential safety hazards exist when the motor is applied to an oil-gas place, the utility model provides a flame-proof motor which comprises a front end cover, wherein the open end of the front end cover is connected with a flame-proof shell, the other end of the flame-proof shell is connected with the open end of a rear end cover, the flame-proof shell, the front end cover and the rear end cover jointly form a explosion-proof cavity, and a winding stator core and a rotor are arranged in the explosion-proof cavity.

By adopting the technical scheme, the front end cover, the rear end cover and the explosion-proof shell jointly form the explosion-proof cavity, the winding stator core and the rotor are arranged in the explosion-proof cavity, the winding stator core and the rotor can be isolated from oil gas, the use safety of the explosion-proof motor in an oil gas place is further enhanced, and potential safety hazards are eliminated.

The utility model is further configured as follows: and a thermal protector is also arranged in the explosion-proof cavity and is arranged on the winding stator core.

By adopting the technical scheme, the thermal protector is arranged on the winding stator iron core, when the internal structure of the explosion-proof motor generates heat and reaches the threshold value of the thermal protector, the contact of the thermal protector is disconnected, the explosion-proof motor is powered off, and the operation is stopped, so that the temperature for protecting the internal structure of the explosion-proof motor is not increased, and the effect of protecting the explosion-proof motor is achieved.

The utility model is further provided with: and the front end cover and the rear end cover are respectively provided with a seam allowance matched with the explosion-proof shell.

By adopting the technical scheme, the seam allowance can better limit the explosion-proof shell, so that the structure of each explosion-proof cavity is more compact and reliable.

The utility model is further provided with: the front end cover and the spigot end of the rear end cover are both provided with ear plates, and through holes are formed in the ear plates.

By adopting the technical scheme, the explosion-proof shell can be clamped by the front end cover and the rear end cover through inserting the bolts into the through holes of the front end cover and the rear end cover, so that the sealing performance of the explosion-proof cavity is better, the structure is more compact, and the explosion-proof shell is safer and more reliable to use in places with oil gas.

The utility model is further provided with: the two ends of the rotor respectively extend out of the front end cover and the rear end cover, and one end of the rotor extending out of the rear end cover is connected with a fan.

By adopting the technical scheme, the fan can play a role in heat dissipation, and the internal structure of the explosion-proof motor is cooled, so that the explosion-proof motor can be used more safely and reliably.

The utility model is further provided with: the fan is covered with a fan cover, and the fan cover is connected to the rear end cover.

Through adopting above-mentioned technical scheme, the fan housing can cover the fan, can guarantee like this that the rotation of fan can not receive external factor's influence, also can improve fan pivoted security, makes the rotation of fan can not injure people.

The utility model is further provided with: and a mounting hole is formed in one end, deviating from the rear end cover, of the front end cover.

By adopting the technical scheme, the mounting hole is used for connecting the explosion-proof motor and the oil gas recovery pump.

The beneficial technical effects of the utility model are as follows:

1. the explosion-proof motor has the advantages that the front end cover, the rear end cover and the explosion-proof shell jointly form the explosion-proof cavity, the winding stator core and the rotor of the explosion-proof motor are arranged in the explosion-proof cavity, the heating structure can be effectively isolated from oil gas, the use safety of the explosion-proof motor in an oil gas place is further enhanced, and the potential safety hazard of the explosion-proof motor in the oil gas place is eliminated.

2. The thermal protector is arranged in the explosion-proof cavity, the temperature of the internal structure of the explosion-proof motor can be monitored, when the temperature of the internal structure of the explosion-proof motor reaches the threshold value of the thermal protector, the contact of the thermal protector is disconnected, the explosion-proof motor is powered off, the operation is stopped, and the explosion-proof motor is protected from being burnt.

Drawings

Fig. 1 shows a partial cross-sectional view of the utility model.

Fig. 2 shows a left side view of the utility model.

Reference numerals: 1. a front end cover; 2. an explosion-proof shell; 3. a rear end cap; 4. an explosion-proof cavity; 41. a winding stator core; 411. a thermal protector; 42. a rotor; 43. a capacitor; 5. stopping the opening; 6. a fan; 7. a fan housing; 8. tightening the bolts; 9. and (7) installing holes.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Referring to fig. 1, the utility model provides an explosion-proof motor, which comprises a front end cover 1, wherein the front end cover 1 is cylindrical, one end of the front end cover is open, and the other end of the front end cover is closed, the rear end cover 3 is also cylindrical, one end of the rear end cover is open, and the other end of the rear end cover is closed, the opening of the front end cover 1 and the opening of the rear end cover 3 are oppositely arranged, an explosion-proof shell 2 is clamped between the front end cover 1 and the rear end cover 3, so that the front end cover 1, the explosion-proof shell 2 and the rear end cover 3 form a closed explosion-proof cavity 4, and a rotor 42 and a winding stator core 41 of the explosion-proof motor are both arranged in the explosion-proof cavity 4.

Still be provided with thermal protector 411 in explosion-proof chamber 4, thermal protector 411 is installed on winding stator core 41, because the inner structure of protection explosion-proof motor, when the temperature in explosion-proof chamber 4 reached thermal protector 411's boundary value, thermal protector 411's contact can the inflation disconnection, and then makes explosion-proof motor outage stop motion. The capacitor 43 is also arranged in the explosion-proof cavity 4, the capacitor 43 is arranged on the rear end cover 3, and the explosion-proof motor is an electric box explosion-proof motor, so the capacitor can be used as a starting capacitor when the capacitor is arranged, the capacitor is started to work when the explosion-proof motor is started, and the starting capacitor is disconnected when the explosion-proof motor rotates at a rotating speed and throws off the centrifugal switch.

Seam allowance 5 has all been seted up at the both ends of flame proof shell 2, and seam allowance 5 with flame proof shell 2 looks adaptation is all seted up to the open end of front end housing 1 and the open end of rear end housing 3, through setting up the motion of restriction flame proof shell 2 that seam allowance 5 can be better, and then make front end housing 1 and rear end housing 3 can be better press from both sides the flame proof shell 2 tightly.

Referring to fig. 2, four ear plates are arranged at the end stop ends of the front end cover 1 and the rear end cover 3, four through holes are formed in the ear plates, the four through holes are arranged at equal angles, the four tension bolts 8 are adopted to penetrate through the through holes in the front end cover 1 and the through holes in the rear end cover 3, and the tension bolts 8 are screwed up, so that the front end cover 1 and the rear end cover 3 are tensioned by the tension bolts 8. Further, the front end cover 1 and the rear end cover 3 clamp the explosion-proof shell 2, the airtightness of the explosion-proof cavity 4 is further enhanced, and the explosion-proof motor can be used more safely and reliably

Rotor 42's both ends are stretched out by front end housing 1 and rear end housing 3 respectively, rotor 42 is provided with the keyway by the one end that front end housing 1 stretches out, be used for being connected with the oil gas recovery pump, rotor 42 has fan 6 by the one end coaxial coupling that rear end housing 3 stretches out, be used for the heat dissipation of flame proof motor, make the operation that the flame proof motor can be more safe and stable, be covered with fan housing 7 on fan 6, fan housing 7 is one end opening one end confined cylindric, 7 open-ended one ends of fan housing pass through bolted connection with rear end housing 3, can guarantee through setting up fan housing 7 that the rotation of fan 6 can not receive external factor's influence, also can improve 6 pivoted security of fan, make the rotation of fan 6 can not hinder the people, play the effect of safety protection.

And one end of the front end cover 1, which is far away from the rear end cover 3, is provided with a mounting hole 9 for connecting the explosion-proof motor and the oil gas recovery pump.

In summary, the explosion-proof housing 2 is arranged, so that the explosion-proof housing 2, the front end cover 1 and the rear end cover 3 jointly form the explosion-proof cavity 4, and the internal structures of the explosion-proof motor are arranged in the explosion-proof cavity 4, so that the heating structure can be effectively isolated from oil gas, the use safety of the explosion-proof motor in an oil gas place is further enhanced, and the potential safety hazard of the explosion-proof motor in the oil gas place is eliminated. Set up hot protector 411, can break off the contact when the high temperature in explosion-proof chamber 4, make explosion-proof motor outage, and then the stall reaches the effect of protection motor inner structure.

While the utility model has been described with reference to a preferred embodiment, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model, and particularly, features shown in the various embodiments may be combined in any suitable manner without departing from the scope of the utility model. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the utility model, and the technical scheme after the changes or substitutions can fall into the protection scope of the utility model.

Claims

1. The utility model provides a flame proof motor, includes front end housing (1), its characterized in that: the explosion-proof shell (2) is connected with the open end of front end housing (1), the other end of explosion-proof shell (2) is connected with the open end of rear end housing (3), explosion-proof shell (2) with front end housing (1) with rear end housing (3) constitute explosion-proof chamber (4) jointly, be provided with winding stator core (41) and rotor (42) in explosion-proof chamber (4), still be provided with thermal protector (411) in explosion-proof chamber (4), thermal protector (411) are installed on winding stator core (41).

2. The flameproof motor of claim 1, characterized in that: and the two ends of the explosion-proof shell (2) are provided with rabbets (5), and the front end cover (1) and the rear end cover (3) are provided with rabbets (5) matched with the explosion-proof shell (2).

3. The flameproof motor of claim 2, characterized in that: the front end cover (1) and the spigot end of the rear end cover (3) are both provided with ear plates, and through holes are formed in the ear plates.

4. The flameproof motor of claim 1, characterized in that: the two ends of the rotor (42) are respectively extended out of the front end cover (1) and the rear end cover (3), and one end of the rotor (42) extended out of the rear end cover (3) is connected with a fan (6).

5. The flameproof motor of claim 4, wherein: the fan (6) is covered with a fan cover (7), and the fan cover (7) is connected to the rear end cover (3).

6. The flameproof motor of claim 1, characterized in that: and a mounting hole (9) is formed in one end, deviating from the rear end cover (3), of the front end cover (1).