CN203643109U - Electric motor airtightness detecting instrument - Google Patents
Electric motor airtightness detecting instrument Download PDFInfo
- Publication number
- CN203643109U CN203643109U CN201420029000.XU CN201420029000U CN203643109U CN 203643109 U CN203643109 U CN 203643109U CN 201420029000 U CN201420029000 U CN 201420029000U CN 203643109 U CN203643109 U CN 203643109U
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- Prior art keywords
- pressure
- valve
- electromagnetic direction
- detection head
- direction valve
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Abstract
The utility model discloses an electric motor airtightness detecting instrument comprising an air pressure system, an electrical system and a box body (18), wherein an air source triple member (1), a precise pressure-regulating valve (2), a throttle valve (3), an electromagnetic direction valve (5), an apparatus output interface (12), a detection head (14) and a sealing member (14a) of the air pressure system are connected on an air passage pipeline (6) in sequence. The electrical system consists of a disqualification audible-visual alarm device (7), a qualification display lamp (8), a time relay (10), a pressure relay (11), a start button switch (13), the detection head (14), a mains supply input opening (15), a voltage-stabilized power source (16) and a relay group (17). An electric connecting point pressure gauge (4) is mounted behind the electromagnetic direction valve (5) on the air passage pipeline (6) to detect a preset pressure upper limit and send out electric signals. A pressure gauge (9) is also installed behind the electromagnetic direction valve (5) on the air passage pipeline (6) to detect pipeline pressure in a real time manner, and the detection head (14) is connected with an electric motor to be detected through the sealing member (14a) in a sealed manner. The electric motor airtightness detecting instrument is characterized by simple and fast operation, reliable work, and low equipment investment cost.
Description
Technical field
The utility model relates to a kind of electric motor of automobile air-leakage detector.
Background technology
A kind of annex of motor Chang Zuowei is arranged on body of a motor car, completes various functions.Due to the position of installing, motor tends to be subject to rainwater, the intrusion of steam, for example door and window lifter is arranged on conventionally with motor in the interlayer of door panel, can run into the moisture bleeding from glazing tape gap, this intrusion can cause the corrosion of motor internal part, so that loses effect, therefore, the sealing of test motor is very important; In the situation that there is no detector, sealing propertytest can only adopt the experimental technique of drenching with rain, and motor is directly placed under the water column of the experiment table of drenching with rain and washes away, so or take motor apart and check whether inside intakes, such experiment is destructive, can only spot-check, and cannot on product line, frequently carry out; The motor air-leakage detector that there is no at present professional production in China, import instrument can be used for production line and detects, but this kind equipment price is at 300,000 to 500,000 yuan, very expensive, general enterprises is difficult to accept, and therefore, the detector for tightness of developing a kind of practicality is necessary.
Utility model content
In order to realize rapidly, nondestructively detect motor seal, the utility model provides a kind of motor air-leakage detector.The technical solution of the utility model is: comprise baric systerm, electrical system and casing, wherein baric systerm is made up of source of the gas three linked piece, precise pressure regulating valve, throttling valve, electro connecting pressure gauge, electromagnetic direction valve, gas circuit pipeline, tensimeter, instrument output interface, seal; Electrical system is made up of defective audible-visual annunciator, qualified display lamp, the time relay, pressure switch, start button switch, detection head, civil power input port, stabilized voltage supply, relay group; Described source of the gas three linked piece, precise pressure regulating valve, throttling valve, electromagnetic direction valve, instrument output interface, detection head, seal is once connected in series on described gas circuit pipeline; Electro connecting pressure gauge is arranged on after the electromagnetic direction valve on gas circuit pipeline to detect the preset pressure upper limit and to send electric signal; Tensimeter is also arranged on after the electromagnetic direction valve on gas circuit pipeline with real-time signal piping pressure; Described detection head is connected with motor seal to be checked by seal.
Baric systerm has external hose and detection head and is connected by measured motor, and the inner chamber of motor is connected with internal system gas circuit, forms the space of a sealing.If pressurize in the space of this sealing, reach certain pressure, and stop pressurization, system compressed air can reduce pressure because of the leakage that system certainly exists, and the speed of this pressure decreased has reflected the sealing quality of system (comprising motor); Because the leakage rate of instrument internal pipeline is fixed, in fact the speed of pressure drop speed has reflected the quality of electric machine structure sealing.So, use method relatively just can detect motor seal.For this reason, be provided with an electrical system in instrument internal, for detection and the comparison of gas-electric signal, and have fixing logical program, can automatically realize the whole working cycle such as detection, comparison, differentiation.
The beneficial effects of the utility model are: presetting the air pressure pressurization upper limit, after the air pressure decline lower limit gentle drops time, only need to press one-shot button, instrument just can automatically complete whole testing process, testing result is shown by acousto-optic signalling generator, intuitively, clearly, operates extremely easy, whole test process completes within the several seconds, efficiency is very high, be applicable to produce completely line detect, and to motor without any harmful effect; Simultaneously due to the measuring principle adopting relatively, so a whole set of instrument adopts general gas circuit element and a small amount of precision components composition, cost of manufacture is very cheap, be highly suitable for the production scene of the occasion for example small business not high in accuracy requirement, made up small business and cannot carry out because limited fund can not drop into substantial contribution buying expensive device the shortcoming of air-tight test of motors.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1 source of the gas three linked piece, 2 precise pressure regulating valves, 3 throttling valve, 4 electro connecting pressure gauges, 5 electromagnetic direction valves, 6 gas circuit pipelines, 7 defective audible-visual annunciators, 8 qualified display lamps, 9 tensimeters, 10 time relays, 11 pressure switches, 12 instrument output interfaces, 13 start button switches, 14 detection heads, 14a seal, 15 civil power input ports, 16 stabilized voltage supplys, 17 relay groups, 18 casings.
Embodiment
As shown in Figure 1, the utility model comprises baric systerm, electrical system and casing 18, and wherein baric systerm is made up of source of the gas three linked piece 1, precise pressure regulating valve 2, throttling valve 3, electro connecting pressure gauge 4, electromagnetic direction valve 5, gas circuit pipeline 6, tensimeter 9, instrument output interface 12, seal 14a; Electrical system is made up of defective audible-visual annunciator 7, qualified display lamp 8, the time relay 10, pressure switch 11, start button switch 13, detection head 14, civil power input port 15, stabilized voltage supply 16, relay group 17; Described source of the gas three linked piece 1, precise pressure regulating valve 2, throttling valve 3, electromagnetic direction valve 5, instrument output interface 12, detection head 14, seal 14a is once connected in series on described gas circuit pipeline 6; Electro connecting pressure gauge 4 is arranged on after the electromagnetic direction valve 5 on gas circuit pipeline 6 to detect the preset pressure upper limit and to send electric signal; Tensimeter 9 is also arranged on after the electromagnetic direction valve 5 on gas circuit pipeline 6 with real-time signal piping pressure; Described detection head 14 is connected with motor seal to be checked by seal 14a.
Operation of the present utility model divides two stages, is described below:
One, adjust the default stage
1. on electro connecting pressure gauge 4, set the air pressure pressurization upper limit;
2. on pressure switch 11, set air pressure decline lower limit;
3. on the time relay 10, set air pressure fall time;
Two, detection-phase
1. by source of the gas and power supply access instrument.Pressurized air is by source of the gas three linked piece 1, normal clean pressurized air is introduced, enter precise pressure regulating valve 2 by stable gas pressure be down to the required scope of detecting, throttling valve 3 is controlled the speed of air inlet pressurization, stabilized voltage supply 16 is introduced to provide electrical system to use in civil power input port 15;
By detection head 14 by being pressed in motor air in place, seal 14a seals, and makes gas circuit pipeline 6 by instrument output interface 12, flexible pipe draws into a confined space with motor cavity;
3. started by press pushbutton switch 13, the trace routine of startup system;
4. electromagnetic direction valve 5 is opened, source of the gas starts to gas circuit pipeline 6 inflating pressures, pipeline inner pressure rises gradually, reach the preset pressure upper limit, electro connecting pressure gauge 4 moves, and sends electric signal, and this signal is controlled two actions by relay group 17: 1. close electromagnetic direction valve 5, stop pressurization, and make gas circuit pipeline 6 and source of the gas isolation; 2. start-up time, relay 10 started timing.
5. at gas circuit pipeline 6 closed periods, inner pressure declines gradually, the intrasystem real-time pressure of observable from tensimeter 9, prescribe a time limit to preset pressure at pressure drop, pressure switch 11 moves, send electric signal, the time relay 10 is in the time moving to the default time, also can send electric signal, above two signals compare in circuit, if the signal of pressure switch first sends, illustrative system pressure drop is faster than expection, system leak is bigger than normal, and product is defective, and instrument sends defective sound and light alarm signal; If the signal of the time relay first sends, illustrative system pressure drop is slower than expection, and system leak is less than normal, and product is qualified, and instrument sends qualified signal.
As mentioned above, instrument can detect the sealing situation of motor easily.
Above-mentioned embodiment is just shown routine, is to be the restriction that this patent is comprised to scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; As long as the technology contents essence made according to the disclosed technical scheme of this patent is identical or be equal to any change or modification, all fall into the scope that this patent comprises.
Claims (1)
1. a motor air-leakage detector, comprise baric systerm, electrical system and casing (18), it is characterized in that: baric systerm is made up of source of the gas three linked piece (1), precise pressure regulating valve (2), throttling valve (3), electro connecting pressure gauge (4), electromagnetic direction valve (5), gas circuit pipeline (6), tensimeter (9), instrument output interface (12), seal (14a); Electrical system is made up of defective audible-visual annunciator (7), qualified display lamp (8), the time relay (10), pressure switch (11), start button switch (13), detection head (14), civil power input port (15), stabilized voltage supply (16), relay group (17); Described source of the gas three linked piece (1), precise pressure regulating valve (2), throttling valve (3), electromagnetic direction valve (5), instrument output interface (12), detection head (14), seal (14a) is once connected in series on described gas circuit pipeline (6); Electro connecting pressure gauge (4) is arranged on after the electromagnetic direction valve (5) on gas circuit pipeline (6) to detect the preset pressure upper limit and to send electric signal; Tensimeter (9) is also arranged on after the electromagnetic direction valve (5) on gas circuit pipeline (6) with real-time signal piping pressure; Described detection head (14) is connected with motor seal to be checked by seal (14a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029000.XU CN203643109U (en) | 2014-01-17 | 2014-01-17 | Electric motor airtightness detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029000.XU CN203643109U (en) | 2014-01-17 | 2014-01-17 | Electric motor airtightness detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643109U true CN203643109U (en) | 2014-06-11 |
Family
ID=50874344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420029000.XU Expired - Fee Related CN203643109U (en) | 2014-01-17 | 2014-01-17 | Electric motor airtightness detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956017A (en) * | 2018-05-19 | 2018-12-07 | 芜湖翡叶动力科技有限公司 | A kind of motor air-tightness detection device |
-
2014
- 2014-01-17 CN CN201420029000.XU patent/CN203643109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956017A (en) * | 2018-05-19 | 2018-12-07 | 芜湖翡叶动力科技有限公司 | A kind of motor air-tightness detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20160117 |
|
| EXPY | Termination of patent right or utility model |