CN102735383B - Testing method of efficiency of gear-shifting cable of automobile - Google Patents
Testing method of efficiency of gear-shifting cable of automobile Download PDFInfo
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- CN102735383B CN102735383B CN201210240387.9A CN201210240387A CN102735383B CN 102735383 B CN102735383 B CN 102735383B CN 201210240387 A CN201210240387 A CN 201210240387A CN 102735383 B CN102735383 B CN 102735383B
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Abstract
The invention discloses a testing method of the efficiency of a gear-shifting cable of an automobile. A gear-shifting cable to be tested is installed on a testing device; the position of the gear-shifting cable to be tested on a testing platform is modulated and the gear-shifting cable to be tested is fastened after the test requirements are met; the position of a cylinder is modulated so as to ensure the centering degree of the cylinder and the gear-shifting cable to be tested; the cylinder is fastened and a gas source is opened; the pressure is modulated to be a specified value; after a throttle valve is modulated to be a specified flow, an electromagnetic valve is controlled manually by testing personnel; the compressed air enters the cylinder; the cylinder withdraws slowly to contact with the gear-shifting cable to be tested; a clamp begins to exert a tension force to a testing sample piece; the tension force is exerted; the magnitude of the tension force and a displacement value of two ends of the testing sample piece are recorded by a data acquisition system; a manual control button of the electromagnetic valve is released; a cylinder piston stretches out; and the test is ended. With the adoption of the testing method, a practical automobile environment can be simulated so as to test the efficiency of the gear-shifting cable of the automobile; and the influence of other components on a test result is eliminated, so that the testing data are accurate.
Description
Technical field
The invention belongs to auto parts and components technical field of measurement and test, relate in particular to the test method of automobile gear shift drag-line efficiency.
Background technology
The shifting drag-line of automobile changes variator shift control mode for choosing, and driver's action and shifting mode are that the mechanical effect by shifting drag-line contacts between moving.Be connected in the shifting drag-line between throttle valve body and wheel box, the aperture by air throttle determines when gearshift, can also adjust the gearbox shifting time by the length of fine setting bracing wire.The efficiency test of shifting drag-line also shows its importance especially.
At present, domestic have special purpose test equipment to test, and adopt test unit clamp, and test unit versatility is poor, has increased test period and cost; For longer shifting drag-line, can cause very large inconvenience installing generally, test result accuracy is also poor.
Along with the development of auto industry and auto manufacturing technology, vehicle is constantly updated, and the design proposal of vehicle is updated, and carries out shifting drag-line efficiency test and comparative analysis thereupon, thereby is badly in need of efficient, reliable drag-line efficiency test device.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the method for automobile gear shift drag-line efficiency test, its object is in order to make automobile gear shift efficiency test easy and simple to handle.
The invention provides a kind of test method of automobile gear shift drag-line efficiency, installation test exemplar on described test unit, adjusts the position of test exemplar on test-bed, reaches fastening test exemplar after testing requirements; Adjusting cylinders position, guarantees cylinder and the centrad of testing exemplar, and fastening cylinder; Open source of the gas, according to correlation technique, require to regulate pressure to setting, throttling valve is adjusted to after regulation flow, by testing crew, manually control solenoid valve, pressurized air enters cylinder, the slow indentation of cylinder, touch test exemplar fixture, start test exemplar to apply pulling force; Apply pulling force to regulation pulling force, recorded pulling force size and the shift value of now testing exemplar two ends by data acquisition system (DAS), discharge the manual control button of solenoid valve, cylinder piston stretches out, and gets back to original state, closes source of the gas, dismounting test exemplar, off-test.
The device of described test is comprised of test-bed 7 and data acquisition system (DAS), test-bed 7 comprises support 2, be fixed on the cylinder 1 of described support 2 bottoms, the take-off lever of described cylinder 1 is connected with pulling force sensor 3, the other end of described pulling force sensor 3 is connected with shifting drag-line 51 heads, and the other end of described shifting drag-line 51 is fixed on fixture 6; Shifting drag-line 52 one end are fixed on that another of fixture 6 is distolateral, and the other end is connected with pulling force sensor 9, and described pulling force sensor 9 is connected with spring 10, and the other end of described spring 10 is fixed on the bottom of support 2; Displacement transducer 4, displacement transducer 8 are separately fixed on described support 2.
Described cylinder 1 can move and fix on described support 2, carrys out the centrad of adjusting cylinders and shifting drag-line.One circular arc expander is arranged at described examination fixture 6 tops, and the distance of circular arc expander two bottoms is 400mm.Described fixture 6 be can horizontal direction activity stay rope sheath unit clamp.Can regulate described fixture 6, guarantee that stay rope sheath is fastening.Described test drive unit adopts pneumatic means, and this pneumatic means comprises source of the gas, cylinder, air strainer, pressure-regulating valve, oil sprayer, solenoid valve, throttling valve, by tracheae, connects described pneumatic element.
Described data acquisition system (DAS) is provided with main frame, data acquisition unit, displacement transducer and pulling force sensor, the signal that described sensor produces simulation passes to data acquisition unit, by data acquisition unit, convert digital collection signal to and carry out data processing, data are sent to main frame, by main frame, shown, the power value of output terminal and input end, stroke is shown by numeral and curve simultaneously, reading intuitive and convenient.
Test method of the present invention can be simulated real vehicle environment automobile gear shift drag-line efficiency is tested, and eliminates the impact of other parts on test findings, makes test figure more accurate.Automobile gear shift drag-line efficiency test apparatus structure is simple, and installation, convenient disassembly are with low cost, alleviate laboratory technician's working strength.Utilize apparatus of the present invention to verify the analytic method of shifting drag-line efficiency, for the innovative design of shifting drag-line provides reliable foundation.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram for data acquisition system (DAS) of the present invention.
Fig. 2 is the schematic diagram of the apparatus structure that adopts of automobile gear shift drag-line efficiency test method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by a specific embodiment, technical scheme of the present invention is made to the explanation that a step is detailed, to help those skilled in the art that inventive concept of the present invention, technical scheme are had more complete, deep and understood accurately.
The method of automobile gear shift drag-line efficiency test provided by the invention, required test unit has the support of comprising, test-bed, test exemplar is carried out to efficiency test, described test exemplar is automobile gear shift drag-line, described test unit adopts pneumatic means, and this pneumatic means comprises source of the gas, cylinder, air strainer, pressure-regulating valve, oil sprayer, solenoid valve, throttling valve, by tracheae, connects described pneumatic element.
Shifting drag- line 51,52 to be measured is installed on described test unit, is adjusted the position of shifting drag- line 51,52 to be measured on test-bed, reach fastening shifting drag- line 51,52 to be measured after testing requirements;
Adjusting cylinders 1 position, guarantee the centrad of cylinder 1 and shifting drag-line 51 to be measured, and fastening cylinder is opened source of the gas, according to correlation technique, require the outer pillar of wire drawing assembly crooked, its pillar diameter 12mm, or the standard sample of long 1000mm pillar and 1500mm heart yearn, minimum work radius-of-curvature 200mm.Regulate pressure to 0.4～0.6mpa, throttling valve is adjusted to after regulation flow, by testing crew, manually controls solenoid valve, pressurized air enters cylinder (1), slowly indentation of cylinder (1), touches described shifting drag-line to be measured (51), and fixture (6) starts test exemplar to apply pulling force;
Apply pulling force to regulation pulling force, recorded pulling force size and the shift value of now testing exemplar two ends by data acquisition system (DAS), discharge the manual control button of solenoid valve, cylinder piston stretches out, and gets back to original state, closes source of the gas, dismounting test exemplar, off-test.
Cylinder installment and debugging technical scheme wherein:
Cylinder is arranged on the installing plate of frame bottom, by hexagon socket head cap screw, is connected with support; Cylinder moving stroke is the impulse stroke of shifting drag-line.Cylinder bottom installing plate can move and fix on support, with this, carrys out the centrad of adjusting cylinders and shifting drag-line.
Test exemplar installment and debugging technical scheme:
Described test exemplar is arranged on test-bed, by unit clamp, be connected with bolt, stay rope sheath unit clamp, this structure is can horizontal direction activity, guarantees the size along with protective sleeve of pulling cable diameter, adjusts the distance of fixture, guaranteed the steadiness of stay rope sheath, meet exemplar is executed to loaded needs, it is simple in structure, reliable operation.
In above-mentioned test method:
Described cylinder piston pulling force size regulates by pressure-regulating valve, according to different cylinder specifications, and applicable different test pulling force requirement.Described test unit loading velocity passes through throttle valve adjustment.
The data acquisition system (DAS) the present invention relates to is carried out the technical scheme of data acquisition, data processing:
As shown in Figure 1, data acquisition system (DAS) of the present invention is provided with main frame, data acquisition hardware, displacement transducer and pulling force sensor, the simulating signal that described sensor produces passes to data acquisition hardware, by data acquisition hardware, convert digital collection signal to and be transferred to main frame, data processing software on main frame is processed, and the result of gained is shown by main frame.
As shown in Figure 2, automobile gear shift drag-line efficiency test device, by test-bed 7 and data acquisition system (DAS) two parts, formed, described test-bed 7 comprises support 2, fixture 6, cylinder 1 and spring 10, shifting drag-line 5 to be measured is fixedly mounted on support 2, the output terminal of shifting drag-line 5 to be measured is connected with one end of pulling force sensor 3 by fixture, and the other end of pulling force sensor 3 is connected with the take-off lever of cylinder 1.The output terminal of shifting drag-line 5 to be measured is connected with spring 10 by pulling force sensor 9.During installation, fixture 6 height is adjusted according to shifting drag-line 5, and adjusts the verticality of cylinder 1, makes the take-off lever geometric center of cylinder 1 and shifting drag-line 5 to be measured on same center line.Fixed displacement sensor 4 and displacement transducer 8 on test-bed 7.Adjust cylinder 1 stroke, make it reach the drag-line stroke of testing requirements.
The flow process of using the present invention to test is as follows:
1. shifting drag-line to be measured is fixed on support according to real vehicle stateful connection;
2. shifting drag-line output terminal to be measured is connected with spring by pulling force sensor, and spring is fixed on frame bottom;
3. shifting drag-line to be measured is defeated is connected with the take-off lever of cylinder by pulling force sensor as held;
The position of 4. installing according to shifting drag-line to be measured, adjusts the verticality of cylinder, makes the geometric center of cylinder take-off lever and shifting drag-line to be measured on same center line;
5. according to the last installation site of shifting drag-line fixedly pulling force sensor and displacement transducer on test-bed;
6. open pressurized air, with gas pressure regulating valve, air pressure adjustment is arrived to the required air pressure of test, adjust cylinder stroke and power;
7. open line related, data acquisition system (DAS) is carried out data acquisition, data processing;
8. after off-test, make cylinder revert to virgin state, unloading pulling force, closes source of the gas and line related;
9. complete the detection to shifting drag-line efficiency test to be measured.
Claims (3)
1. a test method for automobile gear shift drag-line efficiency, is characterized in that:
Shifting drag-line (51 to be measured is installed on test unit; 52), adjust shifting drag-line (51 to be measured; 52) position on test-bed, reaches fastening shifting drag-line (51 to be measured after testing requirements; 52);
Described test unit is comprised of test-bed (7) and data acquisition system (DAS), test-bed (7) comprises support (2), be fixed on the cylinder (1) of described support (2) bottom, the take-off lever of described cylinder (1) is connected with pulling force sensor (3), the other end of described pulling force sensor (3) is connected with shifting drag-line (51) head, and the other end of described shifting drag-line (51) is fixed on fixture (6); Shifting drag-line (52) one end is fixed on that another of fixture (6) is distolateral, and the other end is connected with pulling force sensor (9), and described pulling force sensor (9) is connected with spring (10), and the other end of described spring (10) is fixed on the bottom of support (2); Displacement transducer (4), displacement transducer (8) are separately fixed on described support (2);
Adjusting cylinders (1) position, guarantee the centrad of cylinder (1) and shifting drag-line to be measured (51), and fastening cylinder is opened source of the gas, regulate pressure to setting, throttling valve is adjusted to after regulation flow, by testing crew, manually controls solenoid valve, pressurized air enters cylinder (1), slowly indentation of cylinder (1), touches described shifting drag-line to be measured (51), and fixture (6) starts test exemplar to apply pulling force;
Apply pulling force to regulation pulling force, recorded pulling force size and the shift value of now testing exemplar two ends by data acquisition system (DAS), discharge the manual control button of solenoid valve, cylinder piston stretches out, and gets back to original state, closes source of the gas, dismounting test exemplar, off-test.
2. the test method of a kind of automobile gear shift drag-line efficiency according to claim 1, the pressure that it is characterized in that described cylinder is 0.4 ~ 0.9mpa.
3. the test method of a kind of automobile gear shift drag-line efficiency according to claim 1, it is characterized in that: described data acquisition system (DAS) is provided with main frame, data acquisition unit, displacement transducer and pulling force sensor, the signal that described sensor produces simulation passes to data acquisition unit, by data acquisition unit, convert digital collection signal to and carry out data processing, data are sent to main frame, by main frame, shown the power value of output terminal and input end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240387.9A CN102735383B (en) | 2012-07-12 | 2012-07-12 | Testing method of efficiency of gear-shifting cable of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240387.9A CN102735383B (en) | 2012-07-12 | 2012-07-12 | Testing method of efficiency of gear-shifting cable of automobile |
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| Publication Number | Publication Date |
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| CN102735383A CN102735383A (en) | 2012-10-17 |
| CN102735383B true CN102735383B (en) | 2014-02-12 |
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| CN201210240387.9A Expired - Fee Related CN102735383B (en) | 2012-07-12 | 2012-07-12 | Testing method of efficiency of gear-shifting cable of automobile |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634581B (en) * | 2013-11-07 | 2017-11-03 | 北汽福田汽车股份有限公司 | Vehicle steering mechanism transmission efficiency measurement apparatus and its measuring apparatus and measuring method |
| CN103674376B (en) * | 2013-12-04 | 2015-12-02 | 奇瑞汽车股份有限公司 | A kind of measuring system of parking drag-line real vehicle efficiency and measuring method |
| CN105890666B (en) * | 2016-05-18 | 2017-12-05 | 苏州诚峰机电设备有限公司 | Improve the automobile guy cable detection machine fictitious load assembly of stable testing degree |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2809620Y (en) * | 2005-07-22 | 2006-08-23 | 重庆宗申技术开发研究有限公司 | Motorcycle cushion lock durability detector |
| CN201503355U (en) * | 2009-09-27 | 2010-06-09 | 北汽福田汽车股份有限公司 | Accelerator pedal durability test device |
| CN201740643U (en) * | 2010-07-21 | 2011-02-09 | 宁波汽车软轴软管有限公司 | Select and shift cable detector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005012222A1 (en) * | 2005-03-15 | 2006-09-28 | Webasto Ag | Vehicle with a hood and a tailgate |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2809620Y (en) * | 2005-07-22 | 2006-08-23 | 重庆宗申技术开发研究有限公司 | Motorcycle cushion lock durability detector |
| CN201503355U (en) * | 2009-09-27 | 2010-06-09 | 北汽福田汽车股份有限公司 | Accelerator pedal durability test device |
| CN201740643U (en) * | 2010-07-21 | 2011-02-09 | 宁波汽车软轴软管有限公司 | Select and shift cable detector |
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| CN102735383A (en) | 2012-10-17 |
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| CB02 | Change of applicant information |
Address after: 210028 No. 331, Central Road, Nanjing, Jiangsu Applicant after: Nanjing Automobile Group Co., Ltd. Address before: 210028 No. 128 Hongshan Road, Jiangsu, Nanjing Applicant before: Nanjing Automobile Group Co., Ltd. |
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Granted publication date: 20140212 Termination date: 20210712 |
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| CF01 | Termination of patent right due to non-payment of annual fee |