CN204085617U - A kind of system of testing air spring volume size and change - Google Patents
A kind of system of testing air spring volume size and change Download PDFInfo
- Publication number
- CN204085617U CN204085617U CN201420621007.0U CN201420621007U CN204085617U CN 204085617 U CN204085617 U CN 204085617U CN 201420621007 U CN201420621007 U CN 201420621007U CN 204085617 U CN204085617 U CN 204085617U
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- air spring
- water
- solenoid valve
- pressure
- frame
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Abstract
Test a system for air spring volume size and change, relate to the testing apparatus of air spring.Comprise testing table, water system; Testing table is a Compression and Expansion testing machine, comprise frame, be arranged on the control gear that loading crossbeam in frame and controlled loading crossbeam slide up and down along frame, described loading crossbeam is provided with upper grip, described frame is provided with the lower chuck relative with upper grip, loads on crossbeam and be provided with displacement transducer and the first pressure transducer.Water system comprises water tank, two the second pressure transducers, water pump, retaining valve, the first solenoid valve and the second solenoid valves.The utility model is by accurately controlling the parameter such as perpendicular displacement, internal pressure, load quality of air spring, simulate the duty of gas in air spring completely, and by the amount of water in rectangular tank, indirect calculation has gone out volume size and the situation of change thereof of air spring inside under different conditions.
Description
Technical field
The utility model relates to the testing apparatus of air spring, is specially a kind of system of testing air spring volume size and change.
Background technology
Along with the development of China's economic, and the develop rapidly of auto industry, air spring is more and more applied on automobile.Air spring for automobile is very harsh to the characteristic requirements of air spring, and the size of air spring internal capacity and situation of change thereof, there is vital impact to air spring performance.At present, the volume of air spring is that the mode adopting theory calculate to derive obtains mostly, but due to air bag affecting factors to expansion very many, the volume of theory calculate also exists very large error.
Utility model content
The purpose of this utility model is to provide a kind of system accurately can measuring different model air spring volume size and change thereof.
The technical scheme realizing above-mentioned purpose is: a kind of system of testing air spring volume size and change, is characterized in that: comprise testing table, water system and electric-controlled system; Described testing table is a Compression and Expansion testing machine, comprise frame, be arranged on the control gear that loading crossbeam in frame and controlled loading crossbeam slide up and down along frame, described loading crossbeam is provided with upper grip, described frame is provided with the lower chuck relative with upper grip, load on crossbeam and be provided with displacement transducer and the first pressure transducer, described upper grip and lower chuck are connected to Connection Block, air spring is fixed between the Connection Block on upper grip and lower chuck, and the rubber pneumatic bag of air spring is provided with water inlet.
Described water system comprises water tank, two the second pressure transducers, water pump, retaining valve, first solenoid valve and the second solenoid valve, the entrance point of described water pump connects water tank, the endpiece of water pump passes through retaining valve successively, first solenoid valve connects the water inlet of rubber pneumatic bag, the entrance point of the second solenoid valve connects the water inlet of rubber pneumatic bag, the endpiece of the second solenoid valve connects water tank, the water inlet of described water tank bottom and rubber pneumatic bag is connected to the second sensor, second pressure transducer of described water tank bottom is for detecting Underwater Pressure, second pressure transducer of the water inlet of described rubber pneumatic bag is used for air spring inside water pressure and detects.
Described electrical control gear comprises single-chip microcomputer and host computer, communicate to connect between single-chip microcomputer and host computer, the input end of described single-chip microcomputer is connected with displacement transducer, the first pressure transducer, two the second pressure transducers, and the output terminal of described single-chip microcomputer is connected with the control gear that the first solenoid valve, the second solenoid valve and controlled loading crossbeam slide up and down along frame; Described host computer is provided with display, hard disk, keyboard and mouse.
The water tank of above-mentioned water system is rectangle, conveniently liquid level signal is converted into volume data.
Being parallel with the first surplus valve between above-mentioned water system water pump and retaining valve, for being parallel with the second surplus valve between the entrance point of the second solenoid valve and the water inlet of rubber pneumatic bag, being respectively used to protection water pump and air spring.
Second pressure transducer of the water inlet of rubber pneumatic bag of the present utility model is used for air spring inside water pressure and detects, and when hydraulic pressure is lower than setting value, the first solenoid valve is opened, second closed electromagnetic valve, start to air spring, when hydraulic pressure is lower than setting value, the first solenoid valve is opened, second closed electromagnetic valve, start to supply water to air spring, when hydraulic pressure is higher than setting value, the first closed electromagnetic valve, second solenoid valve is opened, and air spring discharges water.
Loading crossbeam of the present utility model is provided with the displacement transducer for gathering air spring height signal and the first pressure transducer for gathering air spring loads quality signal, displacement transducer and the first pressure transducer simultaneously also by gather Signal transmissions to single-chip microcomputer and host computer, host computer is analyzed signal, and send action command to the control gear that controlled loading crossbeam slides up and down, displacement transducer and the first pressure transducer recycle image data, form complete closed-loop control.
During utility model works, air spring is fixed on cupping machine, set by host computer the air spring inside that will control pressure (as by the hydraulic pressure control of air spring inside at 5bar), first solenoid valve is opened, supply water to air spring, when the second pressure transducer of rubber pneumatic bag water inlet detects that pressure arrives setting value (5bar), Single-chip Controlling first closed electromagnetic valve, stops supplying water.Now, the control gear that can be slided up and down by controlled loading crossbeam slowly regulates the height of air spring, and regulate the internal pressure value needed for air spring by host computer, realize with under arbitrary pressure under arbitrary working depth, to the test of air spring internal capacity.
The principle of above-mentioned volume test: the second pressure transducer of water tank bottom is for detecting the pressure under Water in Water Tank, and host computer, by formula P=ρ gh processing pressure signal, is translated into the altitude signal of the water surface, then altitude signal is converted into plethysmogram signal.The utility model is by accurately controlling the parameter such as perpendicular displacement, internal pressure, load quality of air spring, simulate the duty of gas in air spring completely, and by the amount of water in rectangular tank, indirect calculation has gone out volume size and the situation of change thereof of air spring inside under different conditions.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of electric control system.
Embodiment
As shown in Figure 1, testing table 1, water system 2 and electrical control gear 3 is comprised; Testing table 1 adopts Compression and Expansion testing machine conventional in prior art, comprise frame 4, be arranged on the control gear 6 that loading crossbeam 5 in frame 4 and controlled loading crossbeam 4 slide up and down along frame 4, load on crossbeam 4 and be provided with upper grip 7, described frame 4 is provided with the lower chuck 8 relative with upper grip 7, loads on crossbeam 4 and be provided with displacement transducer 9 and the first pressure transducer 10; Upper grip 7 and lower chuck 8 are connected to Connection Block 11, air spring 12 is fixed between the Connection Block 11 on upper grip 7 and lower chuck 8, the center, two ends of air spring 12 is respectively arranged with vertical screw 13, the vertical screw 13 at the two ends of air spring 12 is each passed through the Connection Block 11 on upper grip 7 and lower chuck 8, and fixed by nut, the vertical screw 13 of air spring 12 upper end is provided with center tapped through hole 14, center tapped through hole 14 is connected with the rubber pneumatic bag of air spring 12, as the rubber pneumatic bag water inlet of air spring 12.
Water system 2 comprises water tank 15, second pressure transducer 16, 3rd pressure transducer 29, water pump 17, retaining valve 18, first surplus valve 19, second surplus valve 20, first solenoid valve 21 and the second solenoid valve 22, water tank 15 is rectangle, the entrance point of water pump 17 connects water tank 15, the endpiece of water pump 17 is successively by retaining valve 18, first solenoid valve 21 connects the rubber pneumatic bag water inlet of air spring 12, first surplus valve 19 is connected in parallel between water pump 17 and retaining valve 18, the entrance point of the second solenoid valve 22 connects the rubber pneumatic bag water inlet of air spring 12, the endpiece of the second solenoid valve 22 connects water tank 15, between the entrance point that second surplus valve 20 is connected in parallel on the second solenoid valve 22 and the rubber pneumatic bag water inlet of air spring 12.Be connected with the second sensor 16 bottom water tank 15, the rubber pneumatic bag water inlet of air spring 12 connects the 3rd pressure transducer 29, second pressure transducer 16 for detecting water tank 15 Underwater Pressure, and the 3rd pressure transducer 29 detects for air spring 12 inside water pressure.
As shown in Figure 2, electrical control gear 3 comprises single-chip microcomputer 23 and host computer 24, communicate to connect between single-chip microcomputer 23 and host computer 24, the input end of single-chip microcomputer 23 is connected with displacement transducer 8, first pressure transducer 10, second pressure transducer 16, the 3rd pressure transducer 29, and the output terminal of single-chip microcomputer 23 is connected with the control gear 6 that the first solenoid valve 21, second solenoid valve 22 and controlled loading crossbeam slide up and down along frame; Host computer 24 is provided with display 25, hard disk 26, keyboard 27 and mouse 28.
Claims (4)
1. test a system for air spring volume size and change, it is characterized in that: comprise testing table, water system; Described testing table is a Compression and Expansion testing machine, comprise frame, be arranged on the control gear that loading crossbeam in frame and controlled loading crossbeam slide up and down along frame, described loading crossbeam is provided with upper grip, described frame is provided with the lower chuck relative with upper grip, load on crossbeam and be provided with displacement transducer and the first pressure transducer, described upper grip and lower chuck are connected to Connection Block, air spring is fixed between the Connection Block on upper grip and lower chuck, and the rubber pneumatic bag of air spring is provided with water inlet;
Described water system comprises water tank, two the second pressure transducers, water pump, retaining valve, first solenoid valve and the second solenoid valve, the entrance point of described water pump connects water tank, the endpiece of water pump passes through retaining valve successively, first solenoid valve connects the water inlet of rubber pneumatic bag, the entrance point of the second solenoid valve connects the water inlet of rubber pneumatic bag, the endpiece of the second solenoid valve connects water tank, the water inlet of described water tank bottom and rubber pneumatic bag is connected to the second sensor, second pressure transducer of described water tank bottom is for detecting Underwater Pressure, second pressure transducer of the water inlet of described rubber pneumatic bag is used for air spring inside water pressure and detects.
2. a kind of system of testing air spring volume size and change according to claim 1, it is characterized in that: this system also comprises electrical control gear, described electrical control gear comprises single-chip microcomputer and host computer, communicate to connect between single-chip microcomputer and host computer, the input end of described single-chip microcomputer is connected with displacement transducer, the first pressure transducer, two the second pressure transducers, and the output terminal of described single-chip microcomputer is connected with the control gear that the first solenoid valve, the second solenoid valve and controlled loading crossbeam slide up and down along frame; Described host computer is provided with display, hard disk, keyboard and mouse.
3. a kind of system of testing air spring volume size and change according to claim 1, is characterized in that: described water tank is rectangle.
4. a kind of system of testing air spring volume size and change according to claim 1, it is characterized in that: between water pump and retaining valve, be parallel with the first surplus valve, between the entrance point of the second solenoid valve and the water inlet of rubber pneumatic bag, be parallel with the second surplus valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420621007.0U CN204085617U (en) | 2014-10-24 | 2014-10-24 | A kind of system of testing air spring volume size and change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420621007.0U CN204085617U (en) | 2014-10-24 | 2014-10-24 | A kind of system of testing air spring volume size and change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085617U true CN204085617U (en) | 2015-01-07 |
Family
ID=52178320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420621007.0U Withdrawn - After Issue CN204085617U (en) | 2014-10-24 | 2014-10-24 | A kind of system of testing air spring volume size and change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204085617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280087A (en) * | 2014-10-24 | 2015-01-14 | 仪征维恩汽车技术有限公司 | System for testing size and variation of volume of air spring |
-
2014
- 2014-10-24 CN CN201420621007.0U patent/CN204085617U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280087A (en) * | 2014-10-24 | 2015-01-14 | 仪征维恩汽车技术有限公司 | System for testing size and variation of volume of air spring |
| CN104280087B (en) * | 2014-10-24 | 2017-12-08 | 仪征维恩汽车技术有限公司 | It is a kind of to test air spring volume size and the system of change |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20171208 |
|
| AV01 | Patent right actively abandoned |