CN201867281U - Endurance test device for machine oil pressure sensor - Google Patents
Endurance test device for machine oil pressure sensor Download PDFInfo
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- CN201867281U CN201867281U CN2010206359833U CN201020635983U CN201867281U CN 201867281 U CN201867281 U CN 201867281U CN 2010206359833 U CN2010206359833 U CN 2010206359833U CN 201020635983 U CN201020635983 U CN 201020635983U CN 201867281 U CN201867281 U CN 201867281U
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- oil pressure
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- machine oil
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Abstract
The utility model discloses an endurance test device for a machine oil pressure sensor, which simulates the mode of motion cycle of a product by using the mechanical, electrical, gaseous and hydraulic integrated comprehensive technologies; the pressure of compressed air from an air compressor acts on a pneumatic hydraulic convertor through an electromagnetic directional valve; and according to the Pascal's law, the pressure directly acts on the machine oil pressure sensor and remains unchanged, and the output pressure of the pneumatic hydraulic convertor is controlled through a pressure switch. A pressure gage is used for displaying an output value. During an experiment, pressure output signals are fed back to the electromagnetic directional valve through a delay relay by adjusting the pressure switch, and then the electromagnetic directional valve is caused to work so that inlet pressure can be cutoff and unloading can be carried out, therefore the internal working pressure of the machine oil pressure sensor can be restored to 0 bar and the experiment of the product can be accomplished. A cumulative counter is connected on the machine oil pressure sensor, endowed with the automatic counting function, capable of monitoring the service life of the machine oil pressure sensor and detecting whether the design and process control of the machine oil pressure sensor are reasonable or not.
Description
Technical field
The utility model relates to a kind of durability test apparatus, relates in particular to a kind of engine oil pressure pickup durability test apparatus.
Background technology
Engine oil pressure pickup in the continuous handoff procedure, relies on working pressure to promote upwards distortion of diaphragm in work and between not working; After pressure release, under the reseat pressure effect, diaphragm sets back.The reliability of engine oil pressure pickup, wherein crucial, must guarantee under certain working pressure condition, continuously and can repeat this actuation cycle for a long time, and guarantee that product did not lose efficacy.Also do not have good testing equipment to come engine oil pressure pickup is done endurancing at present, can not guarantee whether product is reasonable in design, process control, can not determine the serviceable life of product.
The utility model content
Whether technical problem to be solved in the utility model is to provide a kind of engine oil pressure pickup durability test apparatus, can monitor the serviceable life of engine oil pressure pickup, can also testing product reasonable in design and process control.
The technical solution of the utility model is as follows: a kind of engine oil pressure pickup durability test apparatus, comprise pipeline and engine oil pressure pickup, be connected with air compressor in turn on the described pipeline, the source of the gas regulating device, solenoid directional control valve, the source of the gas converter, erecting bed, flow regulator and pressure switch, the import of described source of the gas regulating device is connected with the outlet of air compressor, the import of described solenoid directional control valve connects the outlet of source of the gas regulating device, described source of the gas converter is the cylindrical body of a sealing, its top is provided with compressed air inlet, hydraulic oil is equipped with in its inside, the hydraulic oil outlet is set on the side, its underpart, the outlet of described solenoid directional control valve is connected with the compressed air inlet of source of the gas converter, also comprise erecting bed, flow regulator and pressure switch, described erecting bed comprises the mount pad that the oil duct of a sealing and several and engine oil pressure pickup mate, on oil duct, have some branches, make the oil-in of engine oil pressure pickup communicate with oil duct, the hydraulic oil outlet of described source of the gas converter is connected with the import of flow regulator, one end of described oil duct is that import is connected with the outlet of flow regulator, and its other end is connected with pressure switch;
Also comprise timing relay, stored counts device and Switching Power Supply, one end of described pressure switch is connected with the first input end of timing relay, the other end of described pressure switch connects Switching Power Supply, the output terminal of described timing relay is connected with the input end of solenoid directional control valve, second input end of described timing relay is connected with Switching Power Supply, each engine oil pressure pickup output terminal is connected by the input end of shielding wire with the stored counts device, and the output terminal of described stored counts device connects Switching Power Supply.
Adopt technique scheme, use mechanical, electrical, gas, liquid integrated complex art, the motion cycle pattern of analog equipment, the compressed-air actuated pressure that air compressor is come in acts on the air-liquid converter by solenoid directional control valve, according to Pascal law, this pressure will act directly on the engine oil pressure pickup, and its size is constant, and the output pressure size of air-liquid converter relies on pressure switch control.Tensimeter shows output valve.During experiment,, output pressure signal by timing relay, is fed back to solenoid directional control valve by regulating pressure switch.At this moment, admission pressure and unloading are cut off in solenoid directional control valve work, and the working pressure of engine oil pressure pickup inside returns to 0 bar, finishes the once experiment of product.Whether connect the stored counts device on engine oil pressure pickup, the stored counts utensil has the function of automatic counting, can be used for monitoring the serviceable life of engine oil pressure pickup, can also rationally detect its design and process control.
For the ease of observing compressed-air actuated pressure, connect a three-way connection on the pipeline between described source of the gas regulating device and the electromagnetic steering valve, connect a tensimeter on the described three-way connection.
In technique scheme, a three-way connection is set between the import of described flow regulator and oil duct, connect a tensimeter on the described three-way connection.Tensimeter shows output valve.During experiment,, and, pressure is exported maximal value be set at 6bar in conjunction with tensimeter by the adjusting pressure switch.When the output pressure value reached 6bar, pressure switch can be exported a low tension signal, by the time relay, feeds back to solenoid directional control valve.At this moment, admission pressure and unloading are cut off in solenoid directional control valve work, and the working pressure of engine oil pressure pickup inside returns to 0 bar, finishes the once experiment of product.Whether connect the stored counts device on engine oil pressure pickup, the stored counts utensil has the function of automatic counting, can be used for monitoring the serviceable life of engine oil pressure pickup, can also rationally detect its design and process control.
In order once to detect several engine oil pressure pickups more, improve detection efficiency, 5 mount pads are set on the described erecting bed.
Beneficial effect: the utility model utilization is mechanical, electrical, gas, liquid integrated complex art, and experimental pressure is stable, reliable, adjustable, realize automatically comprising circulation pressurization, time-delay, record, experimentation does not need the personnel control, the efficient height can be realized continuous non-stop run.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model pipeline, engine oil pressure pickup 10, the air compressor 1 that connects successively on the pipeline, source of the gas regulating device 2, solenoid directional control valve 3, source of the gas converter 4, erecting bed 5, flow regulator 6, pressure switch 7 timing relays 8, stored counts device 9, electric wire and Switching Power Supply 11 are formed, the import of described source of the gas regulating device 2 is connected with the outlet of air compressor 1, the import of described solenoid directional control valve 3 connects the outlet of source of the gas regulating device 2, described source of the gas converter 4 is the cylindrical body of a sealing, its top is provided with compressed air inlet 4a, hydraulic oil 4b is equipped with in its inside, hydraulic oil outlet 4c is set on the side, its underpart, the outlet of described solenoid directional control valve 3 is connected with the compressed air inlet 4a of source of the gas converter 4, described erecting bed 5 comprises oil duct 5b and 5 mount pad 5a that mate with engine oil pressure pickup 10 of a sealing, on oil duct 5b, have 5 branches, make the oil-in of engine oil pressure pickup 10 communicate with oil duct 5b, the hydraulic oil outlet 4c of described source of the gas converter 4 is connected with the import of flow regulator 6, the end of described oil duct 5b is that import is connected with the outlet of flow regulator 6, and its other end is connected with pressure switch 7; A three-way connection 12 is set between the import of described flow regulator 6 and oil duct 5b, connects a tensimeter 13 on the described three-way connection 12; Connect a three-way connection 12 on the pipeline between described source of the gas regulating device 2 and the electromagnetic steering valve 3, connect a tensimeter 13 on the described three-way connection 12.
One end of described pressure switch 7 is connected with the first input end of timing relay 8, the other end of described pressure switch 7 connects Switching Power Supply 11, the output terminal of described timing relay 8 is connected with the input end of solenoid directional control valve 3, second input end of described timing relay 8 is connected with Switching Power Supply 11, each engine oil pressure pickup 10 output terminal is connected by the input end of shielding wire with stored counts device 9, and the output terminal of described stored counts device 9 connects Switching Power Supply 11.
Claims (4)
1. engine oil pressure pickup durability test apparatus, comprise pipeline and engine oil pressure pickup (10), it is characterized in that: be connected with air compressor (1) on the described pipeline in turn, source of the gas regulating device (2), solenoid directional control valve (3), source of the gas converter (4), erecting bed (5), flow regulator (6) and pressure switch (7), the import of described source of the gas regulating device (2) is connected with the outlet of air compressor (1), the import of described solenoid directional control valve (3) connects the outlet of source of the gas regulating device (2), described source of the gas converter (4) is the cylindrical body of a sealing, its top is provided with compressed air inlet (4a), hydraulic oil (4b) is equipped with in its inside, hydraulic oil outlet (4c) is set on the side, its underpart, the outlet of described solenoid directional control valve (3) is connected with the compressed air inlet (4a) of source of the gas converter (4), described erecting bed (5) comprises the mount pad (5a) of the oil duct (5b) of a sealing and several and engine oil pressure pickup (10) coupling, on oil duct (5b), have some branches, make the oil-in of engine oil pressure pickup (10) communicate with oil duct (5b), the hydraulic oil outlet (4c) of described source of the gas converter (4) is connected with the import of flow regulator (6), one end of described oil duct (5b) is that import is connected with the outlet of flow regulator (6), and its other end is connected with pressure switch (7);
Also comprise timing relay (8), stored counts device (9) and Switching Power Supply (11), one end of described pressure switch (7) is connected with the first input end of timing relay (8), the other end of described pressure switch (7) connects Switching Power Supply (11), the output terminal of described timing relay (8) is connected with the input end of solenoid directional control valve (3), second input end of described timing relay (8) is connected with Switching Power Supply (11), each engine oil pressure pickup (10) output terminal is connected by the input end of shielding wire with stored counts device (9), and the output terminal of described stored counts device (9) connects Switching Power Supply (11).
2. according to the described engine oil pressure pickup durability test apparatus of claim 1, it is characterized in that: connect a three-way connection (12) on the pipeline between described source of the gas regulating device (2) and the electromagnetic steering valve (3), described three-way connection (12) is gone up and is connected a tensimeter (13).
3. according to the described engine oil pressure pickup durability test apparatus of claim 1, it is characterized in that: between the import of described flow regulator (6) and oil duct (5b) three-way connection (12) is set, described three-way connection (12) is gone up and is connected a tensimeter (13).
4. according to the described engine oil pressure pickup durability test apparatus of claim 1, it is characterized in that: 5 mount pads (5b) are set on the described erecting bed (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206359833U CN201867281U (en) | 2010-12-01 | 2010-12-01 | Endurance test device for machine oil pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206359833U CN201867281U (en) | 2010-12-01 | 2010-12-01 | Endurance test device for machine oil pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867281U true CN201867281U (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206359833U Expired - Fee Related CN201867281U (en) | 2010-12-01 | 2010-12-01 | Endurance test device for machine oil pressure sensor |
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|---|---|
| CN (1) | CN201867281U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518858A (en) * | 2011-12-07 | 2012-06-27 | 珠海经济特区科茂橡塑材料有限公司 | Air pressure overload protection device |
| CN103389181A (en) * | 2013-07-18 | 2013-11-13 | 芜湖东方汽车仪表有限公司 | Endurance test bed for testing engine oil pressure sensors |
| CN103728089A (en) * | 2013-12-31 | 2014-04-16 | 自贡新地佩尔阀门有限公司 | Gas-liquid conversion equipment |
| CN104422563A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力电器股份有限公司 | Life test device |
| CN104964791A (en) * | 2015-07-01 | 2015-10-07 | 芜湖东方汽车仪表有限公司 | Oil pressure sensor comprehensive test bench and operation method thereof |
| CN105736087A (en) * | 2016-05-05 | 2016-07-06 | 广西玉柴机器股份有限公司 | Oil pressure measuring device |
| CN112834113A (en) * | 2021-02-22 | 2021-05-25 | 武汉飞恩微电子有限公司 | Impact endurance test circuit, control method and test box of pressure sensor |
-
2010
- 2010-12-01 CN CN2010206359833U patent/CN201867281U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518858A (en) * | 2011-12-07 | 2012-06-27 | 珠海经济特区科茂橡塑材料有限公司 | Air pressure overload protection device |
| CN103389181A (en) * | 2013-07-18 | 2013-11-13 | 芜湖东方汽车仪表有限公司 | Endurance test bed for testing engine oil pressure sensors |
| CN104422563A (en) * | 2013-09-10 | 2015-03-18 | 珠海格力电器股份有限公司 | Life test device |
| CN103728089A (en) * | 2013-12-31 | 2014-04-16 | 自贡新地佩尔阀门有限公司 | Gas-liquid conversion equipment |
| CN104964791A (en) * | 2015-07-01 | 2015-10-07 | 芜湖东方汽车仪表有限公司 | Oil pressure sensor comprehensive test bench and operation method thereof |
| CN105736087A (en) * | 2016-05-05 | 2016-07-06 | 广西玉柴机器股份有限公司 | Oil pressure measuring device |
| CN112834113A (en) * | 2021-02-22 | 2021-05-25 | 武汉飞恩微电子有限公司 | Impact endurance test circuit, control method and test box of pressure sensor |
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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: 20110615 Termination date: 20131201 |