CN212486260U - Variable-frequency explosion-proof electromagnetic brake motor - Google Patents
Variable-frequency explosion-proof electromagnetic brake motor Download PDFInfo
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- CN212486260U CN212486260U CN202021374915.6U CN202021374915U CN212486260U CN 212486260 U CN212486260 U CN 212486260U CN 202021374915 U CN202021374915 U CN 202021374915U CN 212486260 U CN212486260 U CN 212486260U
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Abstract
The utility model discloses a frequency conversion explosion-proof electromagnetic braking motor, which comprises a motor shell and a motor body, wherein the surface of the motor shell is convexly provided with a plurality of radiating fins, the front end and the rear end of the motor shell are respectively encapsulated with a front end cover and a rear end cover, the rear end cover is encapsulated with a brake shell, the front end of a rotating shaft of the motor body extends out of a correspondingly arranged shaft hole on the front end cover, and the rear end of the rotating shaft of the motor body is connected with an electromagnetic brake arranged in the brake shell; the motor shell is also integrally and fixedly provided with a junction box, a motor body wiring terminal, a brake wiring terminal and a rectifier are arranged in the junction box, a motor body wire inlet pipe, a brake wire inlet pipe and a brake wiring pipe which is hermetically connected with the brake shell are correspondingly and fixedly arranged on the side surface of the junction box, and a brake connecting wire for connecting the rectifier and the electromagnetic brake is penetrated in the brake wiring pipe. The utility model discloses overall structure is simpler, compact not only, has effectively improved the safety protection level of motor moreover, has solved the problem that prior art exists.
Description
Technical Field
The utility model relates to an explosion-proof machine belongs to motor technical field, relates to a frequency conversion explosion-proof electromagnetic braking motor exactly.
Background
In a conventional electromagnetic braking motor, an electromagnetic brake is mounted at the rear end of a motor rotating shaft, and a direct current brake disc of the electromagnetic brake is mounted on a rear end cover of the motor. When the electromagnetic braking motor is connected with a power supply, the electromagnetic brake also works simultaneously, and due to the action of electromagnetic attraction, the electromagnet attracts the armature and compresses the spring, so that the brake disc is separated from the armature end cover, and the motor starts to run; when the power supply of the motor is cut off, the electromagnet of the brake loses the electromagnetic attraction, the compression spring pushes the armature to press the brake disc, and the motor stops running immediately under the action of friction torque. For example, chinese utility model patent publication CN206602433U discloses an electromagnetic brake motor, which includes a motor main body, an end cap with a ventilation hole, a fan, a brake disc, a friction plate, an electromagnetic brake, and a motor shaft; the motor main body is fixedly connected with the end cover with the ventilation hole; one end of the brake disc is connected with the end cover with the ventilation hole, and the other end of the brake disc is connected with the electromagnetic brake; the friction plate is connected with the motor shaft through a flat key; one surface of the friction plate is connected with the electromagnetic brake during braking, and the other surface of the friction plate is contacted with the brake disc; and a fan is arranged between the end cover with the ventilation hole and the brake disc, and the fan is connected with the motor shaft through a flat key. The utility model discloses an install the fan between motor main part and electromagnetic braking ware, inside the heat entering motor of having avoided the friction. And a brake disc is connected to the end cover with the ventilation hole close to the electromagnetic brake end, so that when the motor stops running, the friction plate of the electromagnetic brake is quickly attached to the brake disc to play a braking role.
In the technical fields of coal mines, petroleum, natural gas, chemical industry, textile, traffic, grain and oil processing, paper making, medicine and the like, dangerous production places such as inflammable and explosive places exist, and in the dangerous places, pumps, fans, compressors, other transmission machines and the like which need to be driven by motors exist. However, the conventional electromagnetic braking motor cannot separate the generated electric spark, electric arc and dangerous temperature electric parts from the surrounding explosive gas mixture during operation, and has poor safety protection performance, so that the conventional electromagnetic braking motor cannot be applied to dangerous places with high safety protection requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: aiming at the defects of the existing electromagnetic braking motor, the frequency conversion explosion-proof electromagnetic braking motor which is safe and stable in operation is provided.
The technical scheme of the utility model is that: a frequency conversion explosion-proof electromagnetic braking motor comprises a motor shell and a motor body arranged in the motor shell, wherein a plurality of radiating fins are convexly arranged on the surface of the motor shell, a front end cover and a rear end cover are fixedly packaged at the front end and the rear end of the motor shell respectively, a brake shell is fixedly packaged on the rear end cover, a rotating shaft of the motor body extends out of a corresponding shaft hole formed in the front end cover, and an electromagnetic brake connected with the rotating shaft of the motor body is arranged in the brake shell; still the integrative terminal box that has set firmly on the motor housing be equipped with motor body binding post, stopper binding post and rectifier in the terminal box the side correspondence of terminal box has set firmly motor body inlet wire pipe and stopper inlet wire pipe, motor body inlet wire pipe is used for wearing the drive cable who adorns connecting motor body binding post and variable frequency power supply, the stopper inlet wire pipe is used for wearing to adorn and is connected the braking cable of rectifier and external stopper power still sealing connection has the stopper connecting tube between terminal box and the stopper housing, wears to adorn in the stopper connecting tube and connects the braking connecting wire of rectifier and electromagnetic braking ware.
The rectifier is connected in series with the brake terminal.
The front end cover, the rear end cover and the brake shell are packaged in a sealing ring, sealing ring or sealing glue mode, and the rotating shaft of the motor body is assembled with the corresponding shaft hole in a shaft sealing mode through the sealing ring or the sealing ring.
The utility model has the advantages that: the motor shell, front and back end cover and stopper shell adopt packaging structure and cancelled the radiator fan on traditional electromagnetic braking motor, make its structure not only simpler, compact, can save the installation space of motor, and its effectual sealed effect that increases motor body and electromagnetic braking ware, thereby can keep apart the electric spark that motor body and stopper probably produced in the course of the work, electric arc etc. and the flammable and explosive dangerous mixed gas that exists around the motor, make it reach IP 55's explosion-proof grade requirement, thereby can be applied to the colliery safely, oil, natural gas, chemical industry, weaving, traffic, grain and oil processing, papermaking, technical field such as medicine, the effectual problem that has solved traditional electromagnetic braking motor existence.
Drawings
Fig. 1 is a schematic structural diagram of the frequency conversion explosion-proof electromagnetic braking motor of the present invention.
Detailed Description
The utility model discloses a specific embodiment of a frequency conversion explosion-proof electromagnetic braking motor is shown in figure 1, which comprises a motor shell 1 and a motor body (not shown) arranged in the motor shell 1, a front end cover 2 and a rear end cover 3 are fixedly packaged at the front end and the rear end of the motor shell 1 respectively through a sealing ring, a sealing ring or a sealant, a brake shell 11 is fixedly packaged on the rear end cover 3 through a sealing ring, a sealing ring or a sealant, a plurality of radiating fins 10 for the motor to naturally cool in an IC410 cooling mode are convexly arranged on the surface of the motor shell 1, the front end of a rotating shaft 4 of the motor body extends out of a corresponding shaft hole arranged on the front end cover 2, the shaft holes of the rotating shaft 4 of the motor body are hermetically assembled through a sealing ring or a sealing ring shaft, the rear end of the rotating shaft 4 of the motor body is connected with an electromagnetic brake 5 arranged in the brake shell, the detailed structure of the electromagnetic brake 5 is conventional technology well known to those skilled in the art, and will not be described in detail herein. The motor shell 1 is further integrally and fixedly provided with a junction box 6, a motor body wiring terminal, a brake wiring terminal and a rectifier are arranged in the junction box 6, the rectifier is connected with the brake wiring terminal in series, a motor body inlet pipe 7 and a brake inlet pipe 8 are correspondingly and fixedly arranged on the side surface of the junction box 6, the motor body inlet pipe 7 is used for penetrating and installing a driving cable for connecting the motor body wiring terminal with a variable frequency power supply, and the brake inlet pipe is used for penetrating and installing a braking cable for connecting the rectifier with an external brake power supply. A brake connecting pipe 9 is also hermetically connected between the junction box 6 and the brake shell 5, and a brake connecting wire for connecting the rectifier and the electromagnetic brake is penetrated and installed in the brake connecting pipe 9.
The motor shell, the front end cover, the rear end cover and the brake shell of the frequency conversion explosion-proof electromagnetic braking motor of the utility model all adopt the packaging structure and cancel the cooling fan on the traditional electromagnetic braking motor, the integral structure of the variable-frequency explosion-proof electromagnetic brake motor is simpler and more compact, the installation space of the motor can be saved, the sealing effect of the motor body and the electromagnetic brake is effectively improved, therefore, electric sparks, electric arcs and the like which are possibly generated in the working process of the motor body and the brake can be isolated from flammable and explosive dangerous mixed gas around the motor, so that the requirement of IP55 on explosion-proof level is met, therefore, the electromagnetic brake motor can be safely applied to the technical fields of coal mines, petroleum, natural gas, chemical industry, textile, traffic, grain and oil processing, paper making, medicine and the like, and effectively solves the problems of the traditional electromagnetic brake motor.
Claims (3)
1. A variable-frequency explosion-proof electromagnetic braking motor is characterized by comprising a motor shell and a motor body arranged in the motor shell, wherein a plurality of radiating fins are convexly arranged on the surface of the motor shell, a front end cover and a rear end cover are fixedly packaged at the front end and the rear end of the motor shell respectively, a brake shell is fixedly packaged on the rear end cover, a rotating shaft of the motor body extends out of a corresponding shaft hole formed in the front end cover, and an electromagnetic brake connected with the rotating shaft of the motor body is arranged in the brake shell; still the integrative terminal box that has set firmly on the motor housing be equipped with motor body binding post, stopper binding post and rectifier in the terminal box the side correspondence of terminal box has set firmly motor body inlet wire pipe and stopper inlet wire pipe, motor body inlet wire pipe is used for wearing the drive cable who adorns connecting motor body binding post and variable frequency power supply, the stopper inlet wire pipe is used for wearing to adorn and is connected the braking cable of rectifier and external stopper power still sealing connection has the stopper connecting tube between terminal box and the stopper housing, wears to adorn in the stopper connecting tube and connects the braking connecting wire of rectifier and electromagnetic braking ware.
2. The variable frequency explosion-proof electromagnetic brake motor of claim 1, wherein the rectifier is connected in series with the brake terminals.
3. The variable-frequency explosion-proof electromagnetic brake motor according to claim 1, wherein the front end cover, the rear end cover and the brake housing are packaged by sealing rings, sealing rings or sealing glue, and the rotating shaft of the motor body is assembled with the corresponding shaft hole in a shaft sealing manner through the sealing rings or the sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374915.6U CN212486260U (en) | 2020-07-14 | 2020-07-14 | Variable-frequency explosion-proof electromagnetic brake motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374915.6U CN212486260U (en) | 2020-07-14 | 2020-07-14 | Variable-frequency explosion-proof electromagnetic brake motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212486260U true CN212486260U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021374915.6U Active CN212486260U (en) | 2020-07-14 | 2020-07-14 | Variable-frequency explosion-proof electromagnetic brake motor |
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| CN (1) | CN212486260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228714A1 (en) * | 2021-04-28 | 2022-11-03 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor having a stator housing |
-
2020
- 2020-07-14 CN CN202021374915.6U patent/CN212486260U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022228714A1 (en) * | 2021-04-28 | 2022-11-03 | Sew-Eurodrive Gmbh & Co. Kg | Electric motor having a stator housing |
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