CN202817962U - Explosion-proof device of miniature motor - Google Patents
Explosion-proof device of miniature motor Download PDFInfo
- Publication number
- CN202817962U CN202817962U CN 201220502654 CN201220502654U CN202817962U CN 202817962 U CN202817962 U CN 202817962U CN 201220502654 CN201220502654 CN 201220502654 CN 201220502654 U CN201220502654 U CN 201220502654U CN 202817962 U CN202817962 U CN 202817962U
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- explosion
- proof
- micromachine
- flame
- flame proof
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Abstract
The utility model discloses an explosion-proof device of a miniature motor. The explosion-proof device of the miniature motor comprises an explosion-proof shield, an explosion-proof back cover, and an explosion-proof cable introducing device. A front end of the explosion-proof shield is provided with a threaded step hole. The position of the step hole is provided with a connecting sleeve. An explosion-proof threaded joint face is formed between the connecting sleeve and the step hole. The connecting sleeve is connected with the miniature motor through fixed screws. An extending sleeve is sleeved on a rotating shaft of the miniature motor. An explosion-proof joint face is formed between the extending sleeve and an inner hole wall of the connecting sleeve. According to the utility model, a miniature explosion-proof motor is formed outside the miniature motor, the miniature explosion-proof motor can be suitable for small equipment in explosive gases, dust and other dangerous environments, and the structure design of the extending sleeve and the connecting sleeve can effectively prevent the extending sleeve from being thrown out during the motor rotation and prevent the extending sleeve from being separated from the motor shaft due to the explosion shock after explosion, thereby preventing the explosion-proof joint face failure.
Description
Technical field
The utility model relates to electrical equipment explosion-proof technology field, is specifically related to a kind of micromachine explosion isolation device of using in the hazardous environments such as damp, dust of being applicable to.
Background technology
When common micro motor used in the hazardous environments such as damp, dust, behind the carbon brush and rectifier wearing and tearing of motor, motor very easily produced spark, runs into damp, dust etc. and will produce blast, serious crisis life and social safety.At present, the explosion separation motor on the market mostly is the power height, volume, the explosion separation motor that weight is large, and micromachine mostly is common electric machine, can't directly use in hazardous environment.
Chinese patent 200810019929.3 has been announced a kind of minitype explosion-proof speed reducing motor, its principal character is: be provided with flameproof enclosure in the minitype speed reducing motor outside, flameproof enclosure is made of flame proof cylindrical shell and end cap, the flame proof barrel front end has axis hole and fixing hole, the extending sleeve that is enclosed within on the machine shaft is housed in the axis hole, it is a flameproof joint between the axis hole of the external diameter of extending sleeve and flame proof cylindrical shell, be a flameproof joint between the endoporus of extending sleeve and the machine shaft, flameproof enclosure is made by materials such as steel, cast irons.
The major defect that the technical scheme of above-mentioned patent exists has: 1, after motor generation spark was blasted, the motor extending sleeve can separate with motor shaft because of blast impulse, caused flameproof joint to lose efficacy; 2, after the motor bearings wearing and tearing, friction very easily may occur and produce spark with the flame proof cylinder bore in extending sleeve.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of internal explosion that produces because of motor that can bear not damage, and can not cause lighting of extraneous explosion environment, to reach the micromachine explosion isolation device of flame proof purpose.
The technical scheme of the utility model technology is achieved in that a kind of explosion isolation device of micromachine, comprise the flame proof guard shield, flame proof bonnet and flame-proof type cable entry, micromachine places in the flame proof space of flame proof guard shield and the formation of flame proof bonnet, it is characterized in that: be provided with threaded stepped hole at described flame proof guard shield front end, the place is provided with adapter sleeve at described stepped hole, form the flame proof thread composition surface between described adapter sleeve and the stepped hole, described adapter sleeve is connected with micromachine by hold-down screw, rotating shaft at described micromachine is socketed with extending sleeve, forms flameproof joint between the inner hole wall of described extending sleeve and adapter sleeve.
The explosion isolation device of micromachine described in the utility model, its described extending sleeve place the external diameter of an end in the adapter sleeve to be protruding laterally hierarchic structure, and described adapter sleeve endoporus corresponding position is the to the inside hierarchic structure of depression that is mated.
The explosion isolation device of micromachine described in the utility model, its described flame-proof type cable entry is arranged on the flame proof guard shield, and outside anti-explosion cable is introduced flame proof interior volume and the electrical connection of described micromachine by described flame-proof type cable entry.
The explosion isolation device of micromachine described in the utility model, its described adapter sleeve is made by no-spark brass.
The utility model is arranged on the outside micro explosion-proof motor that forms of micromachine, the mini-plant that this micro explosion-proof motor can be adapted under the hazardous environments such as damp, dust uses, and the structural design of extending sleeve and adapter sleeve can prevent effectively that motor when rotation from throwing away extending sleeve, even extending sleeve separates with motor shaft because of blast impulse after blasting, thereby the flameproof joint that prevents this place lost efficacy.By the setting of this device, can guarantee the performance and reliability of equipment, can solve again the flame proof problem of micromachine.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark among the figure: 1 is the flame proof guard shield, and 2 is the flame proof bonnet, and 3 is the flame-proof type cable entry, and 4 is micromachine, and 5 is adapter sleeve, and 6 is extending sleeve, and 7 is sealing ring, and 8 is hold-down screw.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model technology is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of explosion isolation device of micromachine, comprise flame proof guard shield 1, flame proof bonnet 2 and flame-proof type cable entry 3, micromachine 4 places in the flame proof space of flame proof guard shield 1 and 2 formation of flame proof bonnet, described flame proof guard shield 1 and flame proof bonnet 2 are interconnected to form the flame proof thread composition surface, between described flame proof guard shield 1 and flame proof bonnet 2, the junction is provided with sealing ring 7; Described flame-proof type cable entry 3 is arranged on the flame proof guard shield 1, and outside anti-explosion cable is introduced flame proof interior volume and 4 electrical connections of described micromachine by the hole in the middle of the described flame-proof type cable entry 3.
Wherein, be provided with threaded stepped hole at described flame proof guard shield 1 front end, the place is provided with adapter sleeve 5 at described stepped hole, form the flame proof thread composition surface between described adapter sleeve 5 and the stepped hole, described adapter sleeve 5 is connected with micromachine 4 by fixture, described fixture adopts hold-down screw 8, rotating shaft at described micromachine 4 is socketed with extending sleeve 6, form flameproof joint between the inner hole wall of described extending sleeve 6 and adapter sleeve 5, described extending sleeve 6 places the external diameter of an end in the adapter sleeve 5 to be protruding laterally hierarchic structure, described adapter sleeve 5 endoporus corresponding positions are the to the inside hierarchic structure of depression that is mated, like this, when rotating, rotating shaft can prevent effectively that extending sleeve is thrown out of, and flameproof joint was lost efficacy, even can also prevent that the flameproof joint that extending sleeve causes because blast impulse separates with motor shaft after blasting lost efficacy.
Wherein, described flame proof guard shield 1 and flame proof bonnet 2 are made by steel or aluminium alloy, and described adapter sleeve 5 is made by brass.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. the explosion isolation device of a micromachine, comprise flame proof guard shield (1), flame proof bonnet (2) and flame-proof type cable entry (3), micromachine (4) places in the flame proof space of flame proof guard shield (1) and flame proof bonnet (2) formation, it is characterized in that: be provided with threaded stepped hole at described flame proof guard shield (1) front end, be provided with adapter sleeve (5) at described stepped hole place, form the flame proof thread composition surface between described adapter sleeve (5) and the stepped hole, described adapter sleeve (5) is connected with micromachine (4) by hold-down screw (8), rotating shaft at described micromachine (4) is socketed with extending sleeve (6), forms flameproof joint between the inner hole wall of described extending sleeve (6) and adapter sleeve (5).
2. the explosion isolation device of micromachine according to claim 1, it is characterized in that: described extending sleeve (6) places the external diameter of an end in the adapter sleeve (5) to be protruding laterally hierarchic structure, and described adapter sleeve (5) endoporus corresponding position is the to the inside hierarchic structure of depression that is mated.
3. the explosion isolation device of micromachine according to claim 1 and 2, it is characterized in that: described flame-proof type cable entry (3) is arranged on the flame proof guard shield (1), and outside anti-explosion cable is introduced flame proof interior volume and described micromachine (4) electrical connection by described flame-proof type cable entry (3).
4. the explosion isolation device of micromachine according to claim 3, it is characterized in that: described adapter sleeve (5) is made by no-spark brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220502654 CN202817962U (en) | 2012-09-27 | 2012-09-27 | Explosion-proof device of miniature motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220502654 CN202817962U (en) | 2012-09-27 | 2012-09-27 | Explosion-proof device of miniature motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817962U true CN202817962U (en) | 2013-03-20 |
Family
ID=47876771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220502654 Expired - Lifetime CN202817962U (en) | 2012-09-27 | 2012-09-27 | Explosion-proof device of miniature motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409672A (en) * | 2014-12-04 | 2015-03-11 | 天津埃柯特测控技术有限公司 | Explosion-proof structure of battery cavity |
| CN111969764A (en) * | 2020-08-18 | 2020-11-20 | 南京力源汽车零部件有限公司 | Miniature explosion-proof motor for automobile |
-
2012
- 2012-09-27 CN CN 201220502654 patent/CN202817962U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409672A (en) * | 2014-12-04 | 2015-03-11 | 天津埃柯特测控技术有限公司 | Explosion-proof structure of battery cavity |
| CN111969764A (en) * | 2020-08-18 | 2020-11-20 | 南京力源汽车零部件有限公司 | Miniature explosion-proof motor for automobile |
| CN111969764B (en) * | 2020-08-18 | 2023-07-14 | 南京力源汽车零部件有限公司 | Miniature explosion-proof motor for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: VITALONG FIREFIGHTING SAFETY GROUP CO., LTD. Free format text: FORMER NAME: SICHUAN WEITELONG FIRE EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 611731 Chengdu high tech West West Road, No. 99, attached to No. 9, No. Patentee after: VITALONG FIRE SAFETY GROUP Co.,Ltd. Address before: 611731 Chengdu high tech West West Road, No. 99, attached to No. 9, No. Patentee before: SICHUAN WEITELONG FIREFIGHTING EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |