CN203672607U - Combined service life test system for pneumatic elements of heavy automobile gearbox - Google Patents
Combined service life test system for pneumatic elements of heavy automobile gearbox Download PDFInfo
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- CN203672607U CN203672607U CN201320882452.8U CN201320882452U CN203672607U CN 203672607 U CN203672607 U CN 203672607U CN 201320882452 U CN201320882452 U CN 201320882452U CN 203672607 U CN203672607 U CN 203672607U
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Abstract
The utility model relates to a combined service life test system for pneumatic elements of a heavy automobile gearbox. The combined service life test system comprises front air path elements and an installation platform. The installation platform is provided with a single H air valve, a magnetic valve, auxiliary cylinder assemblies, double H air valves and the like, thereby forming a multi-path service life test system for pneumatic elements. An air path outlet of an air source is divided into four paths via the front air path elements, and the four paths are connected with inlets of the magnetic valve, the single H air valve and the double H air valves respectively. The magnetic valve controls operation of the single H air valve. An outlet of the single H air valve is connected with a high-grade air inlet and a low-grade air inlet of one auxiliary cylinder assembly. The first auxiliary cylinder assembly is provided with two wedged blocks, and with the reciprocating motions of push rods, the wedged blocks enables top rods of the two double H air valves to be pressed or reset respectively, and outlets of the two double H air valves are connected with a high-grade air inlet and a low-grade air inlet of the other auxiliary cylinder assembly. The combined service life test system is advantaged by being simple in structure, high in test efficiency and safety coefficient, capable of testing service lives of a plurality of control elements, and the like.
Description
Technical field
The utility model belongs to the testing equipment technical field of automobile component, relates to a kind of heavy duty automobile gear box pneumatic element and combines service life experiment system.
Background technology
Have direct very important relation for performance and the safety of car load the serviceable life of the pneumatic control components on heavy-duty automotive speed changer.In prior art, once disclosed and have some to be directed to the life test rack of relevant pneumatic control components (as single H air valve, two H air valve, air-filtering regulator, preselector valve, the range gear air cylinder etc.) development on heavy-duty automotive speed changer catanator.The principal feature of this type of pneumatic control components life test rack is the durability test by a series of control elements that carry out again after the rotation of driven by motor cam, although also can realize the durability test of system, but inconsistent with real working condition, and motor is easily burned, system security reliability is not high, not only there is potential safety hazard for the continuous durability test test of long period, and bring difficulty can to life appraisal and the fault analysis of whole pilot system, so this area is also consistent with real working condition in the urgent need to one at present, safety coefficient is high and can do incessantly for a long time the pilot system of multiple pneumatic element durability tests simultaneously.
Utility model content
The purpose of this utility model is that the problem that prior art is existed solves, provide a kind of consistent with real working condition, with low cost, degree of safety is high, test efficiency is high, heavy duty automobile gear box pneumatic element easy to operate and that can simultaneously do incessantly for a long time multiple pneumatic element durability tests is combined service life experiment system.
For achieving the above object and adopt technical scheme as described below.
Heavy duty automobile gear box is combined service life experiment system with pneumatic element, comprise front end gas circuit element and mounting platform, front end gas circuit element is by the hand stop valve being connected successively with source of the gas by gas path pipe, reduction valve, tensimeter, air-filtering regulator composition, on mounting platform, be provided with by single H air valve, solenoid valve, three odd-side cylinder assemblies, two two H air valves, the multi-way pneumatic component life pilot system of counter composition, the gas circuit of source of the gas exports successively through hand stop valve, reduction valve, after tensimeter and air-filtering regulator, be divided into four tunnels, the defeated solenoid valve that is connected to respectively, the entrance of single H air valve and two H air valves, by the action of solenoid control list H air valve, the outlet of single H air valve is connected to top grade and two low-grade air intake openings of the first odd-side cylinder assembly, on the outlet push rod of the first odd-side cylinder assembly, be provided with two wedges, two wedges are depressed respectively or reset with the push rod that can make two two H air valves in push rod to-and-fro movement process, top grade and two low-grade air intake openings of the second odd-side cylinder assembly and the 3rd odd-side cylinder assembly are received respectively in the outlet of two two H air valves.
Above-mentioned heavy duty automobile gear box is with in pneumatic element associating service life experiment system, and solenoid valve is connected with a counter, and once, rolling counters forward once for the every action of solenoid valve.
In addition, in the practical application structure of this heavy duty automobile gear box with pneumatic element associating service life experiment system, after air-filtering regulator, also can branch pick out the gas circuit for connecting the pneumatic element service life experiment systems such as servo valve, preselector valve or pressure switch and signaling switch.
Compared with prior art, the beneficial effect that the utility model has is:
One, the utility model has been abandoned adopting the structure of in the past rotating by driven by motor cam to carry out the mode of durability test, but only using pressurized air as power source, the action test of the full pneumatic type of being undertaken by a series of pneumatic element, thereby avoided motor easily to burn and the impact that unfavorable factor causes system such as cam is easy to wear; The safety coefficient of this pneumatic element associating service life experiment system is higher, can by the each pneumatic control components of wheel box control system continuous, the action of full pneumatic self control carries out durability test to it, and can check in time the test number (TN) of control element service life experiment system, thereby obtain higher test efficiency;
Two, pneumatic element associating service life experiment system described in the utility model does not adopt driven by motor cam to make two H air valve actions, and the to-and-fro movement that adopts wedge makes two H air valve actions (not being to make push rod motion by the rotation of cam mechanism), consistent with real working condition, so just can better reappear the durability test operating mode of pneumatic control components on wheel box, the related data obtaining through durability test is more true and convincing, and whole service life experiment system is also more conducive to analyze;
Three, the utility model by picking out the mode of a road gas or multichannel gas after air-filtering regulator, can also carry out the durability test of multiple pneumatic control components such as servo valve, preselector valve and various signaling switches simultaneously, not only can greatly shorten the time of durability test, make the operating state of each pneumatic control components better to be monitored and to control, better and transmission system real working condition is coincide, and has also saved a lot of experimentation cost.
Accompanying drawing explanation
Fig. 1 is the principle of work schematic diagram of a specific embodiment structure of the utility model.
In accompanying drawing, the title of each label respectively: A-front end gas circuit element, B-mounting platform; 1-source of the gas, 2-hand stop valve, 3-reduction valve, 4-tensimeter, 5-air-filtering regulator, the mono-H air valve of 6-, 7-solenoid valve, 81-the first odd-side cylinder assembly, 82-the second odd-side cylinder assembly, 83-the 3rd odd-side cylinder assembly, the two H air valves of 9-, 10-wedge, 11-counter, 12-power supply (24V).
Embodiment
Below with reference to accompanying drawing, the utility model content is described further, but actual fabrication structure of the present utility model is not limited in embodiment shown in the drawings.
Referring to Fig. 1, heavy duty automobile gear box described in the utility model comprises front end gas circuit element A, mounting platform B and is arranged on the multi-way pneumatic component life pilot system on mounting platform B with pneumatic element associating service life experiment system.
Front end gas circuit element A is made up of the hand stop valve 2 being connected successively with source of the gas 1 by gas path pipe, reduction valve 3, tensimeter 4, air-filtering regulator 5.In specific design structure, front end gas circuit element is all arranged in a testing table cabinet, and cabinet table top is stainless steel, and two convenient for maintaining has been installed or has been observed demountable structure door.
On mounting platform B, be provided with by single H air valve 6, solenoid valve 7, three odd-side cylinder assemblies (81, 82, 83), two two H air valves 9, the multi-way pneumatic component life pilot system that counter 11 forms, the gas circuit of source of the gas 1 exports successively through hand stop valve 2, reduction valve 3, after tensimeter 4 and air-filtering regulator 5, be divided into four tunnels, the defeated solenoid valve 7 that is connected to respectively, the entrance of single H air valve 6 and two two H air valves 9, controlled the action of single H air valve 6 by solenoid valve 7, the outlet of single H air valve 6 is connected to top grade and two low-grade air intake openings of the first odd-side cylinder assembly 81, on the outlet push rod of the first odd-side cylinder assembly 81, be provided with two wedges 10, two wedges 10 are depressed respectively or reset with the push rod that can make two two H air valves 9 in push rod to-and-fro movement process, top grade and two low-grade air intake openings of the second odd-side cylinder assembly 82 and the 3rd odd-side cylinder assembly 83 are received respectively in the outlet of two two H air valves 9.In specific design structure, the installation panel of mounting platform B adopts shaped steel and Plate Welding to form, and bores mounting hole in the corresponding position of horizontal stand, installs after the support of each pneumatic element, and described each test pneumatic element is bolted connection.
In the example structure shown in accompanying drawing 1, the front end gas circuit being made up of source of the gas 1, hand stop valve 2, reduction valve 3, tensimeter 4, air-filtering regulator 5 is used for providing pressure source, and adjusting and stable air pressure are to needed scope.The mounting platform part of each pneumatic element service life experiment system is for carrying out support fixed installation and durability test to pneumatic element, the pneumatic element of installing comprises single H air valve 6, solenoid valve 7, odd-side cylinder assembly (81,82,83), two H air valve 9 sum counters 11 etc., solenoid valve 7 is controlled single H air valve 6 and is worked, and be connected with counter 11, wedge set on the first odd-side cylinder assembly 81 contacts with the push rod of two two H air valves 9, and two two H air valves 9 are connected with the second odd-side cylinder assembly 82 and the 3rd odd-side cylinder assembly 83 respectively.
In real work, this heavy duty automobile gear box adopts pressurized air as source of the gas 1 with pneumatic element associating service life experiment system, and described each pneumatic control components inlet pressure can be adjusted in the scope of service life experiment system use by reduction valve 3 and air-filtering regulator 5.A hand stop valve 2 is installed at liquid passage inlet place, for controlling the switch of total air inlet, connects thereafter a reduction valve 3, for adjusting pressure limit to needed pressure value.Tensimeter 4 of the rear termination of reduction valve 3, for observing the force value of setting, accesses air-filtering regulator 5 by a hand stop valve 2 of controlling gas path on-off afterwards again.After air-filtering regulator 5, connect a tensimeter 4, it is carried out to durability test and top hole pressure monitoring.Tensimeter 4 rear end gas circuits are divided into four tunnels, enter respectively the entrance of solenoid valve 7, single H air valve 6 and two two H air valves 9.Control the action of single H air valve by solenoid valve 7, the high and low shelves of the action control first odd-side cylinder assembly 81 of single H air valve 6, wedge 10 to-and-fro movements on the first odd-side cylinder assembly 81 make the push rod of two two H air valves 9 depress or reset, and control the high and low shift of gas circuit.Top grade and two low-grade air intake openings of the second odd-side cylinder assembly 82 and the 3rd odd-side cylinder assembly 83 are received respectively in the outlet of two two H air valves 9, by the declutch shift shaft to-and-fro movement of high-grade and low-grade continuous transfer zone dynamic air cylinder.Counter 11 is connected with solenoid valve 7, the every action of solenoid valve 7 once, count once by counter 11, undertaken after number of times adds up and process by counter 11, can realize to each pneumatic element continuous, the action of automatic gas control measures, and can check in time the test number (TN) of service life experiment system.
If pick out again a road gas after air-filtering regulator 5, just can carry out the durability test of more pneumatic control components.For example, do the durability test of servo valve or preselector valve, can on outlet pipe, connect a threeway rapid-acting coupling, one tunnel is to servo valve air feed, another road is to the S confession gas of preselector valve, and the P control of preselector valve mouthful is connected with the P control mouthful of servo valve, the high and low shift conversion of it being carried out to shifting block by the preselector valve shifting block frock being fixed on mounting platform, the gas outlet of servo valve connects the high and low shift of odd-side cylinder assembly.
Claims (2)
1. a heavy duty automobile gear box is combined service life experiment system with pneumatic element, comprise front end gas circuit element (A) and mounting platform (B), front end gas circuit element (A) is by the hand stop valve (2) being connected successively with source of the gas (1) by gas path pipe, reduction valve (3), tensimeter (4), air-filtering regulator (5) composition, it is characterized in that: on mounting platform (B), be provided with by single H air valve (6), solenoid valve (7), three odd-side cylinder assemblies (81, 82, 83), two two H air valves (9), the multi-way pneumatic component life pilot system of counter (11) composition, the gas circuit of source of the gas (1) exports successively through hand stop valve (2), reduction valve (3), after tensimeter (4) and air-filtering regulator (5), be divided into four tunnels, the defeated solenoid valve (7) that is connected to respectively, the entrance of single H air valve (6) and two H air valves (9), controlled the action of single H air valve (6) by solenoid valve (7), the outlet of single H air valve (6) is connected to top grade and two low-grade air intake openings of the first odd-side cylinder assembly (81), on the outlet push rod of the first odd-side cylinder assembly (81), be provided with two wedges (10), two wedges (10) are depressed respectively or reset with the push rod that can make two two H air valves (9) in push rod to-and-fro movement process, top grade and two low-grade air intake openings of the second odd-side cylinder assembly (82) and the 3rd odd-side cylinder assembly (83) are received respectively in the outlet of two two H air valves (9).
2. heavy duty automobile gear box according to claim 1 is combined service life experiment system with pneumatic element, it is characterized in that: solenoid valve (7) is connected with a counter (11), the every action of solenoid valve (7) once, count once by counter (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320882452.8U CN203672607U (en) | 2013-12-27 | 2013-12-27 | Combined service life test system for pneumatic elements of heavy automobile gearbox |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320882452.8U CN203672607U (en) | 2013-12-27 | 2013-12-27 | Combined service life test system for pneumatic elements of heavy automobile gearbox |
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| CN203672607U true CN203672607U (en) | 2014-06-25 |
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| CN201320882452.8U Expired - Fee Related CN203672607U (en) | 2013-12-27 | 2013-12-27 | Combined service life test system for pneumatic elements of heavy automobile gearbox |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709730A (en) * | 2018-06-08 | 2018-10-26 | 西安法士特汽车传动有限公司 | A kind of speed changer pre-selection valve performance and endurance testing device and method |
| CN110108479A (en) * | 2018-01-31 | 2019-08-09 | 宝山钢铁股份有限公司 | Bogie automatic gear-box thresholding cylinder and half grade of cylinder synchronous dynamic simulator |
| CN110320015A (en) * | 2019-06-26 | 2019-10-11 | 陕西法士特齿轮有限责任公司 | A kind of list H gas circuit pneumatic element fatigue life testboard |
| CN110672317A (en) * | 2019-09-20 | 2020-01-10 | 西安法士特汽车传动有限公司 | Pneumatic element detection system of transmission |
-
2013
- 2013-12-27 CN CN201320882452.8U patent/CN203672607U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108479A (en) * | 2018-01-31 | 2019-08-09 | 宝山钢铁股份有限公司 | Bogie automatic gear-box thresholding cylinder and half grade of cylinder synchronous dynamic simulator |
| CN110108479B (en) * | 2018-01-31 | 2022-06-28 | 宝山钢铁股份有限公司 | Threshold cylinder and half-gear cylinder synchronous dynamic simulation device of automatic gearbox of truck |
| CN108709730A (en) * | 2018-06-08 | 2018-10-26 | 西安法士特汽车传动有限公司 | A kind of speed changer pre-selection valve performance and endurance testing device and method |
| CN110320015A (en) * | 2019-06-26 | 2019-10-11 | 陕西法士特齿轮有限责任公司 | A kind of list H gas circuit pneumatic element fatigue life testboard |
| CN110672317A (en) * | 2019-09-20 | 2020-01-10 | 西安法士特汽车传动有限公司 | Pneumatic element detection system of transmission |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20171227 |