CN201993209U - Safety device for air-tight test of motors - Google Patents
Safety device for air-tight test of motors Download PDFInfo
- Publication number
- CN201993209U CN201993209U CN2011200461705U CN201120046170U CN201993209U CN 201993209 U CN201993209 U CN 201993209U CN 2011200461705 U CN2011200461705 U CN 2011200461705U CN 201120046170 U CN201120046170 U CN 201120046170U CN 201993209 U CN201993209 U CN 201993209U
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- Prior art keywords
- pressure
- air
- tight test
- motors
- safety device
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Abstract
The utility model discloses a safety device for air-tight test of motors, which is characterized by comprising an air cylinder body (6) connected with an air inlet pipe (1), and an accurate pressure gauge (2), an electric control pressure gauge (3) and a safe decompression valve (5) are arranged on the air cylinder body. The electric control pressure gauge (3) is connected with an audible and visual alarm (4). The safety device is simple in structure and capable of displaying pressure accurately and visually, setting alarming point and alarming and releasing pressure automatically when pressure exceeds a preset value, thereby ensuring safety of the air-tight test of motors by controlling pressure of inner cavities of the motors from multiaspects.
Description
Technical field
The utility model relates to a kind of safety feature of motor air-tight test.
Background technology
Existing band shell motor all is a sealed electric-motor, for the sealing property of checking its housing all must be done gas pressure test.During detection nitrogen is poured in the housing, maximum pressure reaches 2.6MPa, the housing seal performance is checked in pressurize again. owing to have very big potential safety hazard before designing the impermeability safety feature, unsafe factor mainly shows in the following areas: 1, directly dash in housing through reduction valve during qi of chong channel ascending adversely, pressure reads from the tensimeter in reduction valve exit, and the tensimeter in reduction valve exit can only reflect output pressure, can not reflect the true pressure in the housing.Only close reduction valve and just can know pressure in the housing, can only not stop when therefore pressurizeing pass through out and close reduction valve read pressure in the housing.2, when the pressure in the housing surpasses motor air-tight test authorised pressure, can not report to the police, can not remind operative employee's pressure to reach test determination pressure, be easy to take place the superpressure blast like this.3, can not releasing pressure automatically when the pressure in the housing surpasses motor air-tight test authorised pressure, can not make the pressure in the housing be in the safety value level all the time.
Summary of the invention
In order to solve the security of existing motor air-tight test, the purpose of this utility model is to provide a kind of can accurately show pressure intuitively, alarm set point is set and report to the police, surpass the self-relieving motor air-tight test of set pressure safety feature.
The technical solution adopted in the utility model is as follows: a kind of motor air-tight test safety feature, it is characterized in that: include a cylinder block, on cylinder block, be connected with a draft tube, a precision pressure gauge, an electrohydraulic pressure control table, a safety relief valve have been installed, on the electrohydraulic pressure control table, have been connected with a sound, light crossing-signal.
A venting valve has been installed in described cylinder block below.
The utility model will be tested motor by draft tube and link to each other with the air-tight test safety feature, the cylinder block internal pressure was with the change in pressure of motor cavity when motor was done air-tight test, just can know pressure condition in the body at any time accurately by precision pressure gauge; The alarm of electrohydraulic pressure control table can be provided with as required very easily, and when the pressure of motor cavity reached the warning point value, sound, light crossing-signal were connected warning at once, and the operative employee can and stop qi of chong channel ascending adversely from the sense of hearing and vision two aspect perception warnings; When the pressure of motor cavity surpassed motor air-tight test authorised pressure, the safety relief valve releasing pressure automatically can not raise the pressure of motor cavity; The venting valve that increases can improve venting efficient.
The utility model is simple in structure, can accurately show pressure intuitively, alarm set point is set and reports to the police, surpass the set pressure releasing pressure automatically, thereby thereby many-sided pressure of controlling motor cavity guarantees the safety of motor air-tight test.
Description of drawings
Fig. 1 is a structural drawing of the present utility model;
Among the figure, the 1st, draft tube; The 2nd, precision pressure gauge; The 3rd, the electrohydraulic pressure control table; The 4th, sound, light crossing-signal; The 5th, safety relief valve; The 6th, cylinder block; The 7th, leg, the 8th, venting valve.
Embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawings below:
As can be seen from Figure 1, the utility model safety feature, include a cylinder block 6, on cylinder block, be connected with a draft tube 1, a precision pressure gauge 2, an electrohydraulic pressure control table 3 and a safety relief valve 5 have been installed, a venting valve 8 has been installed below cylinder block, on electrohydraulic pressure control table 3, has been connected with a sound, light crossing-signal 4.
Using method: draft tube 1 of the present utility model is linked to each other with the afterbody of tested motor, set alarm set point, carry out the motor air-tight test then.
Claims (2)
1. motor air-tight test safety feature, it is characterized in that: include a cylinder block (6), on cylinder block, be connected with a draft tube (1), a precision pressure gauge (2), an electrohydraulic pressure control table (3), a safety relief valve (5) have been installed, on electrohydraulic pressure control table (3), have been connected with a sound, light crossing-signal (4).
2. motor air-tight test safety feature according to claim 1 is characterized in that: a venting valve (8) has been installed in described cylinder block below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200461705U CN201993209U (en) | 2011-02-24 | 2011-02-24 | Safety device for air-tight test of motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200461705U CN201993209U (en) | 2011-02-24 | 2011-02-24 | Safety device for air-tight test of motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993209U true CN201993209U (en) | 2011-09-28 |
Family
ID=44669695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200461705U Expired - Lifetime CN201993209U (en) | 2011-02-24 | 2011-02-24 | Safety device for air-tight test of motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591370A (en) * | 2013-10-30 | 2014-02-19 | 合肥中亚环保科技有限公司 | Device for detecting pressure state of lift valve air cylinder of dust remover bag chamber |
| CN103868664A (en) * | 2014-03-07 | 2014-06-18 | 杭州诺航科技有限公司 | Detecting device for sealing property of motor |
| CN105910774A (en) * | 2016-07-08 | 2016-08-31 | 湘电莱特电气有限公司 | Motor air-tight test method and facility |
-
2011
- 2011-02-24 CN CN2011200461705U patent/CN201993209U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591370A (en) * | 2013-10-30 | 2014-02-19 | 合肥中亚环保科技有限公司 | Device for detecting pressure state of lift valve air cylinder of dust remover bag chamber |
| CN103868664A (en) * | 2014-03-07 | 2014-06-18 | 杭州诺航科技有限公司 | Detecting device for sealing property of motor |
| CN105910774A (en) * | 2016-07-08 | 2016-08-31 | 湘电莱特电气有限公司 | Motor air-tight test method and facility |
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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: REGAL BELOIT (YUEYANG) CO., LTD. Free format text: FORMER NAME: A. O. SMITH ELECTRICAL PRODUCTS (YUEYANG) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: White Shiling Nan Kang Industrial Park Economic and Technological Development Zone, Hunan city of Yueyang province No. 187 414400 Patentee after: Thunder electric (Yueyang) Co., Ltd. Address before: White Shiling Nan Kang Industrial Park Economic and Technological Development Zone, Hunan city of Yueyang province No. 187 414400 Patentee before: Ai O Smith electric products (Yueyang) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |