CN203858075U - Gas tightness detection device of charging-discharging axle wheel side - Google Patents
Gas tightness detection device of charging-discharging axle wheel side Download PDFInfo
- Publication number
- CN203858075U CN203858075U CN201320739070.XU CN201320739070U CN203858075U CN 203858075 U CN203858075 U CN 203858075U CN 201320739070 U CN201320739070 U CN 201320739070U CN 203858075 U CN203858075 U CN 203858075U
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- China
- Prior art keywords
- gas tank
- retaining valve
- air
- controller
- deflation
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- Expired - Fee Related
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a gas tightness detection device of a charging-discharging axle wheel side. Particularly, the utility model provides the detection device that is capable of detecting gas tightness of a charging-discharging axle wheel side effectively and accurately. The gas tightness detection device is composed of an air compressor, an air tank, a pressure sensor, a first one-way valve, a first relay and a controller; the air compressor is connected with one end of the air tank and the other end of the air tank is connected with the air inlet of the charging-discharging axle wheel side; the first one-way valve is connected in series between the air compressor and the air tank; and the outlet end of the first one-way valve is oriented at one end of the air tank. And the pressure sensor is arranged at the pipeline between the air tank and the air inlet of the charging-discharging axle wheel side; and the controller controls turning on and off of the first one-way valve by the first relay.
Description
Technical field
The utility model relates to a kind of air-tightness detection device, particularly a kind of bubble-tight pick-up unit for detection of inflation/deflation vehicle bridge wheel limit.
Background technology
For baroque inflation/deflation vehicle bridge wheel limit whirligig, its gas circuit is carried out to sealing propertytest, mainly there are two difficult points: the first, system is dynamic, under High Rotation Speed state, detects; The second, gas circuit structure is complicated, and obturator is in internal system.Traditional method of inspection can not detect, and for this type systematic, impermeability is the key property that must guarantee, this contradiction is restricting the development of rotary sealing system, affects the application of rotary seal technology numerous areas in manufacturing industry.This just needs technician to design new technical scheme, develops new pick-up unit and solves this problem, guarantees effectively to detect the impermeability of rotary sealing system.
Utility model content
For deficiency of the prior art, the utility model provides a kind of can detect the bubble-tight pick-up unit in inflation/deflation vehicle bridge wheel limit efficiently and accurately.
In order to address the above problem, this kind of inflation/deflation vehicle bridge wheel limit air-tightness detection device, it comprises: air compressor, gas tank, pressure transducer, the first retaining valve, the first relay and controller;
One end of air compressor gas tank connects, and the other end of gas tank is connected with the air intake opening on inflation/deflation vehicle bridge wheel limit, and the first retaining valve is serially connected between air compressor and gas tank, and the endpiece of this first retaining valve is towards one end of gas tank; This pressure transducer is arranged on the pipeline between gas tank and the air intake opening on inflation/deflation vehicle bridge wheel limit, and controller is by the switching of first Control the first retaining valve;
Controller is inflated gas tank by controlling the first retaining valve, make the air pressure in gas tank equate and keep stable with the air pressure at inflation/deflation vehicle bridge wheel air intake opening place, limit, the air pressure change value in the certain hour that this controller returns by detected pressures sensor judges the impermeability on this inflation/deflation vehicle bridge wheel limit.
Preferably, also comprise: the warning light being electrically connected to described controller; When the air pressure change value in the certain hour t of controller detected pressures sensor passback is greater than a preset value a, controller is controlled this warning light work.
Preferably, also comprise: the second retaining valve and the second relay; Being attempted by between the first retaining valve and gas tank of the second retaining valve, the endpiece of this second retaining valve is gas tank dorsad; Controller is by the switching of second Control the second retaining valve; When detection completes, controller is controlled the second retaining valve gas tank is exitted.
Preferably, be: described certain hour t is 1～2min; Described preset value a is 12～20Kpa; The volume of described gas tank is 1～2L.
More preferably, described certain hour t is 1min; Described preset value a is 16Kpa; The volume of described gas tank is 2L.
The beneficial effects of the utility model are: can judge that whether rotary sealing system impermeability is qualified, result of determination accurately, reliably.All processes is controlled automatically by controller, and automaticity is high, and detection time is short, and efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural principle block scheme of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this kind of inflation/deflation vehicle bridge wheel limit air-tightness detection device, is characterized in that comprising: air compressor 1, gas tank 3, pressure transducer 4, the first retaining valve 2, the second retaining valve 6, the first relay 5, the second relay 7, controller 9 and the warning light 10 being electrically connected to controller.
Concrete annexation is: air compressor 1 is connected by pipeline with one end of gas tank 3, the other end of gas tank is connected by tracheae with the air intake opening on inflation/deflation vehicle bridge wheel limit, the first retaining valve 2 is serially connected between air compressor 1 and gas tank 3, the endpiece of this first retaining valve 2, towards one end of gas tank, can be inflated to gas tank by air compressor.Being attempted by between the first retaining valve 2 and gas tank 3 of the second retaining valve 6, its endpiece is the inlet end of gas tank dorsad, and outlet termination is empty, can exit to gas tank.This pressure transducer 4 is arranged on the pipeline between gas tank and the air intake opening on inflation/deflation vehicle bridge wheel limit, and controller is controlled the switching of the first retaining valve 2 by the first relay 5, also by the second relay 7, control the switching of the second retaining valve 6.
Signal trend and control principle are: controller is inflated by controlling 2 pairs of gas tanks of the first retaining valve, make the air pressure in gas tank equate and be stabilized in certain scope with the air intake opening air pressure on inflation/deflation vehicle bridge wheel limit, when the air pressure change value in the certain hour t that this controller returns by detected pressures sensor is greater than a preset value a, controller judges that the impermeability on this inflation/deflation vehicle bridge wheel limit is defective, controls warning light 10 work.Here can allow warning light is glittering also can allow the red colored lamp in warning light bright.When air pressure change value is less than preset value a, controller judges that the impermeability on this inflation/deflation vehicle bridge wheel limit is qualified, and the green light that can control warning light is bright.This time t can be 1～2min, is preferably: 1min.Preset value a can be 12～20Kpa, is preferably: 16Kpa.The volume of this gas tank can be 1～2L.When detection completes, controller is controlled 6 pairs of gas tanks of the second retaining valve and is exitted.
The course of work of the present utility model is:
(1) preparatory stage: at rotary sealing system air intake opening, quick connector is installed, sealing gas outlet.Rotary sealing system is connected with propulsion system 8, start propulsion system, start High Rotation Speed;
(2) starting stage:
A, with 327r/min rotation, by automatic inflating device, air pressure is controlled at (780～830Kpa), after operation 3min, exit.
B, with 655r/min rotation, air pressure remains on 0kpa, operation 5min;
(3) the voltage stabilizing stage: with 327r/min rotation, by automatic inflating device, air pressure is controlled at (800～830Kpa) to operation 2min;
(4) constant-voltage phase: with 327r/min rotation, do not inflate also and do not exit, operation 1min;
(5) data acquisition phase: as initial pressure value, maintain constant-voltage phase state operation 1min by pressure transducer 4 image data, pressure transducer 4 image data are as termination pressure, and by data feedback to controller 9;
(6) judge: gas pressure change value is less than 16Kpa, judgement inflation/deflation vehicle bridge wheel limit assembly is qualified, and green light is bright, otherwise defective, red colored lamp is bright; .
(7) propulsion system 8 quit work, and bleed off the gas of rotary sealing system, remove quick connector.
It should be noted that; embodiment is only to the explanation of technical solutions of the utility model and explanation; should not be understood as the restriction to technical solutions of the utility model; any employing the technical solution of the utility model and only do local change, must fall in protection domain of the present utility model.
Claims (5)
1. an inflation/deflation vehicle bridge wheel limit air-tightness detection device, is characterized in that comprising: air compressor (1), gas tank (3), pressure transducer (4), the first retaining valve (2), the first relay (5) and controller (9);
Air compressor (1) is connected with one end of gas tank (3), the other end of gas tank is connected with the air intake opening on inflation/deflation vehicle bridge wheel limit, the first retaining valve (2) is serially connected between air compressor (1) and gas tank (3), and the endpiece of this first retaining valve (2) is towards one end of gas tank; This pressure transducer (4) is arranged on the pipeline between gas tank and the air intake opening on inflation/deflation vehicle bridge wheel limit, and controller is controlled the switching of the first retaining valve (2) by the first relay (5).
2. inflation/deflation vehicle bridge wheel according to claim 1 limit air-tightness detection device, characterized by further comprising: the warning light (10) being electrically connected to described controller; When the air pressure change value in the certain hour t of controller detected pressures sensor passback is greater than a preset value a, controller is controlled this warning light (10) work.
3. inflation/deflation vehicle bridge wheel according to claim 1 limit air-tightness detection device, characterized by further comprising: the second retaining valve (6) and the second relay (7); Being attempted by between the first retaining valve (2) and gas tank (3) of the second retaining valve (6), the endpiece of this second retaining valve (6) is gas tank dorsad; Controller is controlled the switching of the second retaining valve (6) by the second relay (7);
When detection completes, controller is controlled the second retaining valve (6) gas tank is exitted.
4. inflation/deflation vehicle bridge wheel according to claim 2 limit air-tightness detection device, is characterized in that: described certain hour t is 1～2min; Described preset value a is 12～20Kpa; The volume of described gas tank is 1～2L.
5. inflation/deflation vehicle bridge wheel according to claim 4 limit air-tightness detection device, is characterized in that: described certain hour t is 1min; Described preset value a is 16Kpa; The volume of described gas tank is 2L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739070.XU CN203858075U (en) | 2013-11-19 | 2013-11-19 | Gas tightness detection device of charging-discharging axle wheel side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320739070.XU CN203858075U (en) | 2013-11-19 | 2013-11-19 | Gas tightness detection device of charging-discharging axle wheel side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858075U true CN203858075U (en) | 2014-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320739070.XU Expired - Fee Related CN203858075U (en) | 2013-11-19 | 2013-11-19 | Gas tightness detection device of charging-discharging axle wheel side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287485A (en) * | 2017-12-04 | 2018-07-17 | 中国飞机强度研究所 | A kind of inflation method of more inflation bracket loading test platforms |
-
2013
- 2013-11-19 CN CN201320739070.XU patent/CN203858075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287485A (en) * | 2017-12-04 | 2018-07-17 | 中国飞机强度研究所 | A kind of inflation method of more inflation bracket loading test platforms |
| CN108287485B (en) * | 2017-12-04 | 2020-10-20 | 中国飞机强度研究所 | Inflation method of multi-inflation loading test bed |
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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: 20141001 Termination date: 20211119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |