CN220822764U

CN220822764U - Explosion-proof motor shell

Info

Publication number: CN220822764U
Application number: CN202322596184.XU
Authority: CN
Inventors: 王青霞; 王素法; 刘海宝; 王鑫鑫
Original assignee: Zhengding Jintong Machinery Manufacturing Co ltd
Current assignee: Zhengding Jintong Machinery Manufacturing Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-04-19
Anticipated expiration: 2033-09-25

Abstract

The utility model discloses an explosion-proof motor shell which comprises a motor main shell body, a front cover body and a rear cover body, wherein the front cover body and the rear cover body are respectively arranged at the front end and the rear end of the motor main shell body, first sealing grooves are respectively arranged at the positions corresponding to the front end and the rear end of the motor main shell body, second sealing grooves corresponding to the positions of the first sealing grooves are respectively arranged at the positions corresponding to the front cover body and the rear cover body and the first sealing grooves, sealing rings are filled in the first sealing grooves and the second sealing grooves, an air inlet nozzle is arranged at one side of the front cover body and the rear cover body and is introduced into a cavity enclosed by the first sealing grooves and the second sealing grooves, an air inlet one-way valve is fixed on the air inlet nozzle, an air outlet nozzle is arranged at the opposite side of the front cover body and the rear cover body and is introduced into the cavity enclosed by the first sealing grooves and the second sealing grooves, and an air outlet one-way valve is fixed on the air outlet nozzle. The motor is convenient for detecting the sealing performance of the sealing ring through external equipment so as to detect the explosion-proof performance, and the reliable explosion-proof effect of the motor shell is ensured.

Description

Explosion-proof motor shell

Technical Field

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

Background

The motor is a device for converting electric energy into mechanical energy, it utilizes the electric coil to produce rotating magnetic field and acts on the rotor to form magneto-electric power rotating torque, the motor is divided into DC motor and AC motor according to different power supplies, the motor in the electric power system is mostly an AC motor, can be a synchronous motor or an asynchronous motor, the motor mainly consists of stator and rotor, the direction of forced movement of the electric lead in the magnetic field is related to current direction and magnetic induction line direction, the working principle of the motor is that the magnetic field acts on the current, so that the motor rotates.

The explosion-proof motor is a motor which can be used in flammable and explosive places and does not generate electric spark during operation. The explosion-proof motor has the most wide application, the stator and the rotor of the motor are mainly packaged in the motor shell in a good sealing mode, the end part of the current motor shell is generally additionally provided with a sealing ring for sealing, the sealing ring can age and wear after being used for a period of time, the sealing effect is poor, the sealing effect of the internal sealing ring can not be tested by the current motor shell mechanism, the explosion-proof performance of the motor shell can not be determined, and potential safety hazards exist,

Disclosure of utility model

The application aims to provide an explosion-proof motor shell, which solves the problems in the prior art.

In order to achieve the above purpose, the present application provides the following technical solutions: the explosion-proof motor shell comprises a motor main shell body, a front cover body and a rear cover body, wherein the front cover body and the rear cover body are respectively arranged at the front end and the rear end of the motor main shell body, first sealing grooves are respectively arranged at the positions corresponding to the front end and the rear end of the motor main shell body, second sealing grooves corresponding to the positions of the first sealing grooves are respectively arranged at the positions corresponding to the positions of the front cover body and the rear cover body, and sealing rings are filled in the first sealing grooves and the second sealing grooves;

One side of the front cover body and the rear cover body is provided with an air inlet nozzle, the air inlet nozzle is introduced into a cavity enclosed by the first sealing groove and the second sealing groove, an air inlet one-way valve is fixedly installed on the air inlet nozzle, the opposite side of the front cover body and the rear cover body is provided with an exhaust nozzle, the exhaust nozzle is introduced into the cavity enclosed by the first sealing groove and the second sealing groove, and an exhaust one-way valve is fixedly installed on the exhaust nozzle.

Further, the upper and lower end symmetry of motor main casing is equipped with the butt joint slot that runs through the left and right sides, the inboard of preceding lid is close to upper and lower end symmetry fixedly connected with and inserts the inside main inserted bar of butt joint slot, the inboard of back lid is close to upper and lower end department symmetry fixedly connected with and inserts the inside sub-inserted bar of butt joint slot, main inserted bar and sub-inserted bar adaptation are pegged graft and after pegging graft the inboard of preceding lid and back lid with the left and right sides in close contact of motor main casing, main inserted bar and sub-inserted bar are through bolt fixed connection to the department of pegging graft.

Further, a plurality of annular grooves are formed in the sealing ring, and the annular grooves are distributed along the outer Zhou Pinghang of the sealing ring.

Further, the front cover body is provided with an electric shaft hole extending out of an electric shaft inside the power supply main shell body, and a shaft sleeve is fixedly arranged at the electric shaft hole.

Further, the motor main shell, the front cover body and the rear cover body form a cuboid.

In summary, the utility model has the technical effects and advantages that:

1. In the utility model, the front side and the rear side of the motor main shell are connected with the front cover body and the rear cover body through the sealing rings, so that the end parts of the motor main shell have reliable sealing performance, the explosion-proof effect is good, and maintenance personnel only need to detect the sealing performance when detecting the explosion-proof performance of the motor shell.

2. According to the motor, the front cover body and the rear cover body are inserted in the butt joint slots respectively and then fixed through the bolts, the front cover body and the rear cover body are installed with the motor main shell without bolts, and the whole can be detached by separating the joint of the front cover body and the rear cover body, so that the motor is convenient to install.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an explosion-proof motor housing according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an explosion separation structure of an explosion-proof motor housing according to an embodiment of the present application;

FIG. 3 is a schematic view of the end structure of a front cover of an explosion-proof motor housing according to an embodiment of the present application;

Fig. 4 is a schematic diagram of a seal ring structure of an explosion-proof motor housing according to an embodiment of the application.

In the figure: 1. a motor main housing; 2. a front cover; 3. a rear cover; 4. a first seal groove; 5. a second seal groove; 6. a seal ring; 7. an air inlet nozzle; 8. an air inlet one-way valve; 9. an exhaust nozzle; 10. an exhaust check valve; 11. an annular groove; 12. a main plunger; 13. a sub-insert rod; 14. a butt joint slot; 15. a bolt; 16. a shaft sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-4, the explosion-proof motor shell comprises a motor main shell 1, a front cover body 2 and a rear cover body 3, wherein the front end and the rear end of the motor main shell 1 are respectively provided with the front cover body 2 and the rear cover body 3, the positions corresponding to the front end and the rear end of the motor main shell 1 are respectively provided with a first sealing groove 4, the positions corresponding to the first sealing grooves 4 of the front cover body 2 and the rear cover body 3 are respectively provided with a second sealing groove 5 corresponding to the positions of the first sealing grooves 4, and sealing rings 6 are filled in the first sealing grooves 4 and the second sealing grooves 5;

The application provides a motor, which is characterized in that one side of a front cover body 2 and a rear cover body is provided with an air inlet nozzle 7, the air inlet nozzle 7 is introduced into a cavity enclosed by a first sealing groove 4 and a second sealing groove 5, an air inlet one-way valve 8 is fixedly arranged on the air inlet nozzle 7, the other opposite side of the front cover body 2 and the rear cover body 3 is provided with an air outlet nozzle 9, the air outlet nozzle 9 is introduced into the cavity enclosed by the first sealing groove 4 and the second sealing groove 5, and an air outlet one-way valve 10 is fixedly arranged on the air outlet nozzle 9, so that when a maintainer detects the explosion-proof performance of the motor shell, only the sealing performance of the motor shell is required to be detected.

According to the technical scheme of the utility model, the upper end and the lower end of the motor main shell 1 are symmetrically provided with the butt joint slots 14 penetrating through the left side and the right side, the inner side of the front cover body 2 is symmetrically and fixedly connected with the main inserting rod 12 inserted into the butt joint slots 14 near the upper end and the lower end, the inner side of the rear cover body 3 is symmetrically and fixedly connected with the sub inserting rod 13 inserted into the butt joint slots 14 near the upper end and the lower end, the main inserting rod 12 and the sub inserting rod 13 are matched and inserted, the inner sides of the front cover body 2 and the rear cover body 3 are tightly contacted with the left side and the right side of the motor main shell 1 after being inserted, the opposite insertion positions of the main inserting rod 12 and the sub inserting rod 13 are fixedly connected through bolts 15, the front cover body and the rear cover body are inserted at the butt joint slots respectively and then are fixed through the bolts, and the front cover body and the rear cover body are installed with the motor main shell without bolts.

According to the technical scheme, the sealing ring 6 is provided with the plurality of annular grooves 11, and the annular grooves 11 are distributed in parallel along the periphery of the sealing ring 6 to increase the extrusion sealing effect.

Through the technical scheme of the utility model, the front cover body 2 is provided with an electric shaft hole for the extension of an electric shaft in the motor main shell 1, and a shaft sleeve 16 is fixedly arranged at the electric shaft hole to dynamically seal the connection part of the electric shaft.

Through the technical scheme of the utility model, the motor main shell 1, the front cover body 2 and the rear cover body 3 form a cuboid.

The working principle of the utility model is as follows:

When the motor main shell 1 is mounted, the main inserting rod 12 of the front cover body 2 is horizontally placed, then the main inserting rod 12 of the front cover body 2 is inserted into the butt joint slot 14, the sub inserting rod 13 of the rear cover body 3 is inserted into the butt joint slot 14, the two sealing rings 6 are respectively mounted in the first sealing grooves 4 on two sides, the front cover body 2 and the rear cover body 3 are pushed relatively to enable the main inserting rod 12 and the sub inserting rod 13 to be inserted in the butt joint mode, then the main inserting rod 12 and the sub inserting rod 13 are connected and fixed in a threaded mode through bolts 15, the other end of the sealing ring 6 is sealed in the second sealing groove 5, and therefore the motor is mounted.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An explosion-proof motor shell, includes motor main casing (1), preceding lid (2) and back lid (3), its characterized in that: front cover bodies (2) and rear cover bodies (3) are respectively arranged at the front end and the rear end of the motor main shell body (1), first sealing grooves (4) are respectively arranged at the positions corresponding to the front end and the rear end of the motor main shell body (1), second sealing grooves (5) corresponding to the positions of the first sealing grooves (4) are respectively arranged at the positions corresponding to the positions of the front cover bodies (2) and the rear cover bodies (3) and the first sealing grooves (4), and sealing rings (6) are filled in the first sealing grooves (4) and the second sealing grooves (5);

One side of preceding lid (2) and back lid () is equipped with air inlet nozzle (7), in air inlet nozzle (7) let in the cavity that first seal groove (4) and second seal groove (5) enclose, fixed mounting has air inlet check valve (8) on air inlet nozzle (7), the opposite side of preceding lid (2) and back lid (3) is equipped with exhaust nozzle (9), exhaust nozzle (9) let in the cavity that first seal groove (4) and second seal groove (5) enclose, fixed mounting has exhaust check valve (10) on exhaust nozzle (9).

2. An explosion-proof motor housing as set forth in claim 1, wherein: the motor main casing (1) upper and lower end symmetry is equipped with the butt joint slot (14) of running through the left and right sides, the inboard of preceding lid (2) is close to upper and lower end symmetry fixedly connected with and inserts inside main inserted bar (12) of butt joint slot (14), the inboard of back lid (3) is close to upper and lower end department symmetry fixedly connected with and inserts inside sub inserted bar (13) of butt joint slot (14), main inserted bar (12) and sub inserted bar (13) adaptation are pegged graft and after pegging graft the inboard of preceding lid (2) and back lid (3) with the left and right sides in motor main casing (1) in close contact, main inserted bar (12) and sub inserted bar (13) are through bolt (15) fixed connection to the department of inserting.

3. An explosion-proof motor housing as set forth in claim 1, wherein: a plurality of annular grooves (11) are formed in the sealing ring (6), and the annular grooves (11) are distributed along the outer Zhou Pinghang of the sealing ring (6).

4. An explosion-proof motor housing as set forth in claim 1, wherein: the front cover body (2) is provided with an electric shaft hole extending out of an electric shaft inside the power supply main shell body (1), and a shaft sleeve (16) is fixedly arranged at the electric shaft hole.

5. An explosion-proof motor housing as set forth in claim 1, wherein: the motor main shell (1), the front cover body (2) and the rear cover body (3) form a cuboid.