CN201656633U - Self-braking explosion-proof motor - Google Patents
Self-braking explosion-proof motor Download PDFInfo
- Publication number
- CN201656633U CN201656633U CN2010201067557U CN201020106755U CN201656633U CN 201656633 U CN201656633 U CN 201656633U CN 2010201067557 U CN2010201067557 U CN 2010201067557U CN 201020106755 U CN201020106755 U CN 201020106755U CN 201656633 U CN201656633 U CN 201656633U
- Authority
- CN
- China
- Prior art keywords
- motor
- brake
- proof
- explosion
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Cage And Drive Apparatuses For Elevators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a self-braking explosion-proof motor, which comprises a motor casing, wherein a brake center and a return spring are arranged on a rear end cap of the motor casing; the brake center is sleeved at the top end of the compressed return spring, and a gap is reserved between the brake center and the return spring under the action of the return spring. When the motor is in power-off state and brake is needed to be released, a user can utilize level equipment and the like to press the brake center to abut to a shaft of the motor to move 1.5-2 mm so as to separate a brake disc from a brake bushing. The motor casing is an explosion-proof structure, and isolates parts of a rotor, a stator and a brake which might produce sparks, arcing and high temperature from surrounding combustible gas to meet explosion-proof requirement, simultaneously the brake is placed inside the explosion-proof casing of the motor, the explosion-proof performance is reliable, structure of a tractor is simplified, and production cost is reduced.
Description
[technical field]
The utility model belongs to the motor technology field, relates to a kind of self-retention fire-proof motor that is used for the explosion-proof type elevator traction machine.
[background technology]
It is integral structure that present existing self-retention fire-proof motor product adopts brake and motor, and explosion-proof performance is better, in case of emergency can therefore not be unsuitable for using on elevator traction machine with the function of manual release brake but do not possess at traction machine.Existing explosion-proof lift, its traction machine is made up of fire-proof motor, anti-explosion is electromagnetic brake and reductor etc., anti-explosion is electromagnetic brake complex structure, and friction spark between brake shoe and braked wheel and the difficult control of instantaneous temperature.
[utility model content]
In order to overcome the above-mentioned shortcoming of prior art, the utility model provides a kind of simple in structure, self-retention fire-proof motor that the anti-explosion safety performance is good.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of self-retention fire-proof motor, comprise motor housing, being provided with on the rear end cap of motor housing declutches top and back-moving spring, top being nested with of declutching on the top of back-moving spring of compression, and declutch and toply staying from the gap under the effect of back-moving spring and between the rear end face of motor shaft.
Stator and rotor are housed in described motor housing, on stator and rotor taper direction, stator and rotor are turned 180 °.
The interior circle of described stator and the cylindrical of rotor are taper shape.
Described motor housing is the flame-proof type structure.
The beneficial effects of the utility model are: when motor when off-position needs brake off, the an available lever facility equipressure top motor shaft that withstands of compeling to declutch moves 1.5-2mm, brake disc and braking sleeve are broken away from, motor housing is the flame-proof type structure, it might produce the part of spark, electric arc and high temperature to stator, rotor and brake etc. and come with imflammable gas on every side is isolated, realizes the flame proof requirement; Brake is placed in the explosion-proof shell of motor simultaneously, explosion-proof performance is reliable, has simplified the traction machine structure, has reduced production cost.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-motor shaft, 2-tripping spring, 3-motor housing, 4-stator, 5-rotor, 6-brake disc, 7-braking sleeve, 8-top, the 9-back-moving spring that declutches.
[embodiment]
Below in conjunction with drawings and Examples the utility model is further specified:
Referring to Fig. 1, a kind of self-retention fire-proof motor, the motor housing 3 that comprises the flame-proof type structure, on the rear end cap of motor housing 3, be provided with and declutch top 8 and back-moving spring 9, declutching top 8 is nested with on the top of back-moving spring 9 of compression, and declutches and top 8 leaving the gap under the effect of back-moving spring 9 and between the rear end face of motor shaft 1; Stator 4 and rotor 5 are housed in motor housing 3, on stator 4 and rotor 5 taper directions stator 4 and rotor 5 are turned 180 °, the interior circle of stator 4 and the cylindrical of rotor 5 are taper shape simultaneously.Stator 4 also produces by the axial magnetic pulling force of big end to small end rotor except that producing rotating magnetic field during energising, and the thrust that forces rotor 5 to overcome tripping spring 2 axially moves, and makes brake disc 6 and braking sleeve 7 break away from just starting operation of rotor 5; When motor cuts off the power supply, because the magnetic pull of 4 pairs of rotors 5 of stator disappears, rotor 5 is axially moved to big end by small end under the promotion of tripping spring 2, makes brake disc 6 and braking sleeve 7 pressings, frictional force by the two stops rotor 5 to rotate, i.e. be in on-position during motor outage.Usually declutching top 8 is having the 3mm gap under the effect of back-moving spring 9 and between the rear end face of motor shaft 1, do not influence the normal operation and the braking of motor, when motor when off-position needs brake off, an available lever facility equipressure is compeled to declutch and top 8 is withstood motor shaft 1 and move 1.5-2mm brake disc 6 and braking sleeve 7 are broken away from.Simultaneously, motor housing 3 is the flame-proof type structure, and it might produce the part of spark, electric arc and high temperature to motor stator 4, rotor 5 and brake etc. and come with imflammable gas on every side is isolated, reaches the flame proof requirement.The utility model both can be used as the drive motors of explosion-proof type elevator, was applicable to that also explosion-proof type elevator and explosion-proof type crane etc. have the explosion-proof type equipment of brake request.
Claims (4)
1. self-retention fire-proof motor, comprise motor housing, it is characterized in that: on the rear end cap of motor housing, be provided with and declutch top and back-moving spring, top being nested with of declutching on the top of back-moving spring of compression, and declutch and toply leaving the gap under the effect of back-moving spring and between the rear end face of motor shaft.
2. self-retention fire-proof motor as claimed in claim 1 is characterized in that: stator and rotor are housed in described motor housing, on stator and rotor taper direction stator and rotor are turned 180 °.
3. self-retention fire-proof motor as claimed in claim 1 or 2 is characterized in that: the interior circle of described stator and the cylindrical of rotor are taper shape.
4. self-retention fire-proof motor as claimed in claim 1 is characterized in that: described motor housing is the flame-proof type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201067557U CN201656633U (en) | 2010-01-27 | 2010-01-27 | Self-braking explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201067557U CN201656633U (en) | 2010-01-27 | 2010-01-27 | Self-braking explosion-proof motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656633U true CN201656633U (en) | 2010-11-24 |
Family
ID=43121867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201067557U Expired - Fee Related CN201656633U (en) | 2010-01-27 | 2010-01-27 | Self-braking explosion-proof motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656633U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006906A (en) * | 2015-08-15 | 2015-10-28 | 河南省华祥起重机械有限公司 | Novel explosion-proof motor |
| CN116345773A (en) * | 2023-05-25 | 2023-06-27 | 河北泰力电机制造有限公司 | Dust gas composite explosion-proof motor |
-
2010
- 2010-01-27 CN CN2010201067557U patent/CN201656633U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006906A (en) * | 2015-08-15 | 2015-10-28 | 河南省华祥起重机械有限公司 | Novel explosion-proof motor |
| CN116345773A (en) * | 2023-05-25 | 2023-06-27 | 河北泰力电机制造有限公司 | Dust gas composite explosion-proof motor |
| CN116345773B (en) * | 2023-05-25 | 2023-07-28 | 河北泰力电机制造有限公司 | Dust gas composite explosion-proof motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110127 |