CN103207072A - Testing machine for adjusting durability of car steering column - Google Patents
Testing machine for adjusting durability of car steering column Download PDFInfo
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- CN103207072A CN103207072A CN2013101403221A CN201310140322A CN103207072A CN 103207072 A CN103207072 A CN 103207072A CN 2013101403221 A CN2013101403221 A CN 2013101403221A CN 201310140322 A CN201310140322 A CN 201310140322A CN 103207072 A CN103207072 A CN 103207072A
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Abstract
The invention provides a testing machine for adjusting the durability of a car steering column. The testing machine comprises a column clamping apparatus and is configured with a data acquisition and processing system. The column clamping apparatus enables a tested steering column to be mounted according to a real car position and can clamp the steering columns of different models for testing. An axial adjusting apparatus drives a piston rod of the tested steering column to stretch and retract under the traction of an electric cylinder and simulates axial adjustment of the steering column. A radial adjusting apparatus simulates radial adjustment of the tested steering column under the traction of an elevator. An unlocking apparatus simulates unlocking and locking of a user to the steering column. An axial force sensor, a radial force sensor and an unlocking force sensor record measured force of a test. According to the testing machine, the testing method is convenient and efficient, the tested steering column simulates an actual utilization condition accurately for testing, the testing machine suits related ideas about adjusting durability testing of car steering columns, and the accuracy and the stability of the test results are guaranteed.
Description
Technical field
The present invention relates to a kind of car steering tube column and regulate the endurance quality testing machine, because the existing industry standard development of China relatively lags behind, the adjusting endurance quality examination criteria of steering column is not proposed, the present invention can be according to all kinds of advanced standards in the world, as Japanese Mazda standard MES PA 32100C, Mitsubishi standard ES-X23023 etc., carry out the adjusting endurance quality test of steering column, this test function obtains requiring in each class standard the data of measurement.The invention belongs to the auto parts and components technical field of measurement and test.
Technical background
Steering column in automobile main rise support, the fixed-direction dish, the effect of transmitting the moment of torsion that human pilot applies by bearing circle.Along with people are more and more higher to the comfortableness requirement of driving, the position of bearing circle is adjustable, and the four-way adjustable steering column uses widely on automobile, and the quality testing problem before tubing string dispatches from the factory seems particularly important.Checkout equipment at steering column four-way adjusting endurance quality is very few at present, some steering column manufacturers use manual testing machine more, existing tubing string regulate durable automatic checkout equipment also exist function singleness, complex structure, can not accurately the anthropomorphic dummy to the operation of bearing circle, record data inaccurate, do not have a reusability, tubing string to various models does not have problems such as broad applicability, and these problems have all limited steering column and regulated the integral body lifting of endurance quality detection technique.
Summary of the invention
The objective of the invention is to the defective that exists at prior art, provide three kinds of adjusting power of defined in the adjusting action of the accurate drive simulating person of a kind of energy to bearing circle, the accurately acquisition standard, fast realize repeated test, and can regulate the endurance quality testing machine to the car steering tube column that all steering columns are suitable for.
In order to achieve the above object, design of the present invention is: by the fixing tubing string test specimen of adjustable clamping device, axial and the radiai adjustment mechanism of test machine moves simultaneously and realizes that steering column drives the compound motion of bearing circle, combine with the motion of release mechanism and to have realized that drive simulating person is to the adjusting action of bearing circle accurately, thereby accurately simulated the motion state that turns to tubing string in the actual use, guaranteed precision of test result.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of car steering tube column is regulated the endurance quality testing machine, comprises test bed framework, measured tube column assembly, axial-adjustment unit, radiai adjustment device, tubing string clamping tunable arrangement, tripper and data Collection ﹠ Processing System; It is characterized in that: the radiai adjustment device is fixed on the test bed framework, axial-adjustment unit one end and test bed framework are hinged, the other end is connected by pin with the radiai adjustment device, tubing string clamping tunable arrangement is fixed on the test bed framework, in order to clamping measured tube column assembly, and the position of adjustment measured tube column assembly, the output terminal of measured tube column assembly is connected with axial-adjustment unit, tripper is installed on the axial-adjustment unit, the adjusting handle of clamping measured tube column assembly; The measured tube column assembly is being clamped on the tubing string clamping tunable arrangement, and adjust starting characteristics test machine behind its position, when axial-adjustment unit drive measured tube column assembly is done the axial adjustment motion, the radiai adjustment device drives the measured tube column assembly and does radiai adjustment, two finish to adjustment movement after, tripper is implemented the lock and unlock action to the measured tube column assembly, and the simulation driver realizes car steering tube column is regulated the test of endurance quality to the operation of tubing string.
The structure of described test bed framework is: be spliced into a rectangular parallelepiped framework by aluminium alloy extrusions, there are two pairs of short aluminium section bars to be installed in the front and back of framework respectively, short section bar one is in order to install two rolling bearing units, and short section bar two is in order to install described tubing string clamping tunable arrangement.
The structure of described measured tube column assembly is: the support of sample stent and tubing string test specimen is affixed, and the output terminal of tubing string test specimen and an inertia dish that is equivalent to bearing circle are affixed.
The structure of described axial-adjustment unit is: two pairs of aluminium section bars that one is long and the other is short vertically are connected, and are fixed on the two ends of an aluminium section bar respectively, constitute a L type support, and each rigidly connects these L type support both sides with the reinforcement gusset, increase the rigidity of support; Fix the base plate of a hollow above the L type support, electronic cylinder of orthoscopic by a fixed support be installed in described base plate below, a line slideway is installed in above the base plate; The piston rod of the electronic cylinder of orthoscopic promotes web joint by one and connects a force application board, a fixedly connected slide block below the force application board, and slide block and line slideway cunning are joined; The electronic cylinder of orthoscopic promotes web joint, thereby drives the force application board that is installed on the line slideway, by stretching of the electronic cylinder piston rod of orthoscopic, drives moving forward and backward of force application board; Rolling bearing units respectively are equipped with on the minor face top of L type support, and are hinged by the rolling bearing units of ladder bearing pin and described test bed framework.
The structure of described radiai adjustment device is: a lifter hangs by a mount pad and is fixedly mounted on the described test bed framework, drives the lifter screw rod by servomotor by turbine and worm; Lifter screw rod bottom thread connects a pair of terminal lug, connects with described L type bracket pins after middle minor axis two ends respectively connect a pair of terminal lug; Moving up and down of lifter screw rod, driving described axial-adjustment unit is rotation center with the rolling bearing units of described test bed framework, moves up and down along arc track; Middle minor axis is used for eliminating described axial-adjustment unit motion process the stuck problem owing to cross the location.
The structure of described tubing string clamping device is: two little T type groove slide blocks slide at a big T type frid, regulate the spacing of two little T type groove slide blocks, make that sample stent and the little T type groove slide block of described measured tube column assembly are affixed, realize that testing machine is to the applicability of the tubing string test specimen of different length; Big T type frid becomes the aluminium alloy extrusions of 15 ° of angles and horizontal positioned to be connected with surface level, threaded nut in the punching of aluminium alloy extrusions both sides is placed; Handwheel drives two pairs of bevel gears that are arranged in the intermediate shaft two ends and rotates, trapezoidal screw is connected with the bevel gear key, the other end and rolling bearing units are hinged, by with being threaded of nut, driving big T type frid moves up and down, realize the applicability of testing machine to the tubing string test specimen of different installation sites, and by latch mechanism aluminium alloy extrusions and described test-bed have been connected, be implemented in the reliability of testing machine in the long duration test process.
The structure of described tripper is: by worm type of reduction gearing of a driven by servomotor, the embedded nut of worm type of reduction gearing delivery outlet, the outside fluting of trapezoidal screw, screw in nut by the anti-rotation boss that is installed on the worm type of reduction gearing, the rotation of servomotor is converted into the rectilinear motion of trapezoidal screw; The trapezoidal screw head is connected with described releasing force sensor, by the flake joint, connect with the fixture pin of described tubing string test specimen handle, thereby the adjusting handle of the described tubing string test specimen of push-and-pull is realized release, locking function; The speed reduction unit base is connected with bearing pin with the ears fixed head, the ears fixed head is installed on the minor face of L type support of described axial-adjustment unit, worm type of reduction gearing can slide at bearing pin, make that chucking position can be with the position adjustment of described tubing string test specimen handle, and strengthened the L type support rigidity of described axial-adjustment unit; The structure of described data Collection ﹠ Processing System is: high speed ARM7 single-chip microcomputer, axial force transducer, radial force sensor and a releasing force sensor; Axial force transducer and radial force sensor are hinged by web member and described inertia dish on one side, by flake joint with described force application board be connected on one side, the point of application is classified as a bit, simulated the operation of people to bearing circle accurately.
The present invention has following apparent outstanding substantive distinguishing features and significantly technical progress compared with prior art:
The invention solves in the existing checkout equipment accurately the anthropomorphic dummy to the technological deficiency of the operation of bearing circle, and can the steering column of all models be detected.
The present invention is classified as equipment point of application to steering column radiai adjustment and axial adjustment in detection a bit, has simulated the people accurately to the point of application position in the bearing circle adjustment action, guarantees accuracy of experimental results.
The present invention has realized turning in the testing process meeting of tubing string axial adjustment and radiai adjustment motion, changed and in detecting, axially regulated the pattern that radiai adjustment separately hockets in the past, make testing process conform to the operation of people's reality to bearing circle, guaranteed accuracy of experimental results.
The invention provides adjustable tubing string clamping device, make the test function be suitable for the steering column of different model, greatly reduce the detection cost, reduce the wasting of resources, and the tubing string clamping device with tubing string to tilt 15 ° mode, according to installing the real vehicle position, experimental enviroment and actual matching have been guaranteed the accuracy of experimental result.
Aspect data acquisition and processing (DAP), adopt high speed ARM7 single-chip microcomputer, power sensor, in test process, can produce three groups of force datas, can accomplish that by relevant test data the test result science is just, on the database member, can regulate endurance quality to steering column and detect industry and play one and lead effect.
Description of drawings
Fig. 1 is the structural representation of regulating durability-testing machines in conjunction with a kind of car steering tube column of steering column test assembly example.
Fig. 2 is the left view of Fig. 1.
Embodiment
The preferred embodiments of the present invention accompanying drawings is as follows:
Embodiment one: referring to Fig. 1, this car steering tube column is regulated the endurance quality testing machine, comprises test bed framework 1, measured tube column assembly 2, axial-adjustment unit 3, radiai adjustment device 4, tubing string clamping tunable arrangement 5, tripper 6 and data Collection ﹠ Processing System; It is characterized in that: radiai adjustment device 4 is fixed on the test bed framework 1, axial-adjustment unit 3 one ends and test bed framework 1 are hinged, the other end and radiai adjustment device 4 are connected by pin, tubing string clamping tunable arrangement 5 is fixed on the test bed framework 1, in order to clamping measured tube column assembly 2, and the position of adjustment measured tube column assembly 2, the output terminal of measured tube column assembly 2 is connected with axial-adjustment unit 3, tripper 6 is installed on the axial-adjustment unit 3, the adjusting handle of clamping measured tube column assembly 2; Measured tube column assembly 2 is being clamped on the tubing string clamping tunable arrangement 5, and adjust starting characteristics test machine behind its position, when axial-adjustment unit 3 drive measured tube column assemblies 2 are done the axial adjustment motion, radiai adjustment device 4 drives measured tube column assembly 2 and does radiai adjustment, two finish to adjustment movement after, 6 pairs of measured tube column assemblies of tripper 2 are implemented the lock and unlock action, and the simulation driver realizes car steering tube column is regulated the test of endurance quality to the operation of tubing string.
Embodiment two: present embodiment and embodiment one are basic identical, and special feature is as follows:
The structure of described test bed framework 1 is: be spliced into a rectangular parallelepiped framework by aluminium alloy extrusions, there are two pairs of short section bars to be installed in the front and back of framework respectively, short section bar 1 is in order to install two rolling bearing units 11, and short section bar 2 13 is in order to install described tubing string clamping tunable arrangement 5.
The structure of described measured tube column assembly 2 is: sample stent 23 is affixed with the support of tubing string test specimen 21, and the output terminal of tubing string test specimen 21 is affixed with the inertia dish 22 that is equivalent to bearing circle.
The structure of described axial-adjustment unit 3 is: two pairs of aluminium section bars that one is long and the other is short vertically are connected, and are fixed on the two ends of an aluminium section bar respectively, constitute a L type support 31, and each rigidly connects these L type support 31 both sides with strengthening gusset 311, increases the rigidity of support; The electronic cylinder 321 of 36, one orthoscopic of base plate of fixing a hollow above the L type support 31 by a fixed support 322 be installed in described base plate 36 below, a line slideway 34 is installed in above the base plate 36; The piston rod of the electronic cylinder 321 of orthoscopic promotes web joint 33 by one and connects a force application board 35, force application board 35 following fixedly connected slide blocks 342, slide block 342 and 34 sliding joining of line slideway; The electronic cylinder 321 of orthoscopic promotes web joint 33, thereby drives the force application board 35 that is installed on the line slideway 34, by stretching of electronic cylinder 321 piston rods of orthoscopic, drives moving forward and backward of force application board 35; Rolling bearing units 37 respectively are equipped with on the minor face top of L type support 31, and are hinged with the rolling bearing units 11 of described test bed framework 1 by ladder bearing pin 38.
The structure of described radiai adjustment device 4 is: a lifter 411 hangs by a mount pad 412 and is fixedly mounted on the described test bed framework 1, drives lifter 411 screw rods by servomotor 413 by turbine and worm; Lifter 411 screw rod bottom thread connect and connect with described L type support 31 pins after 421, one middle minor axises of a pair of terminal lug, 422 two ends respectively connect a pair of terminal lug 421; Moving up and down of lifter 411 screw rods, driving described axial-adjustment unit 3 is rotation center with the rolling bearing units 11 of described test bed framework 1, moves up and down along arc track; Middle minor axis 422 is used for eliminating described axial-adjustment unit 3 motion processes the stuck problem owing to cross the location.
The structure of described tubing string clamping device 5 is: two little T type groove slide blocks 511 slide at a big T type frid 512, regulate the spacing of two little T type groove slide blocks 511, make that the sample stent 23 of described measured tube column assembly 2 is affixed with little T type groove slide block 511, realize that testing machine is to the applicability of the tubing string test specimen 21 of different length; Big T type frid 512 becomes the aluminium alloy extrusions 52 of 15 ° of angles and horizontal positioned to be connected with surface level, threaded nut 531 in the punching of aluminium alloy extrusions 52 both sides is placed; Handwheel 541 drives two pairs of bevel gears 543 that are arranged in intermediate shaft 542 two ends and rotates, trapezoidal screw 532 is connected with bevel gear 543 keys, the other end and rolling bearing units 533 are hinged, by with being threaded of nut 531, driving big T type frid 512 moves up and down, realize the applicability of testing machine to the tubing string test specimen 21 of different installation sites, and by latch mechanism 55 aluminium alloy extrusions 52 and described test-bed 1 have been connected, be implemented in the reliability of testing machine in the long duration test process;
The structure of described tripper 6 is: drive a worm type of reduction gearing 611 by a servomotor 612, the embedded nut 614 of worm type of reduction gearing 611 delivery outlets, trapezoidal screw 62 outside flutings, screw in nut 614 by the anti-rotation boss 613 that is installed on the worm type of reduction gearing 611, the rotation of servomotor 612 is converted into the rectilinear motion of trapezoidal screw 62; Trapezoidal screw 62 heads are connected with described releasing force sensor 68, by the flake joint, connect with anchor clamps 66 pins of described tubing string test specimen handle, thereby the adjusting handle of the described tubing string test specimen 21 of push-and-pull are realized release, locking function; Speed reduction unit base 615 is connected with ears fixed head 64 usefulness bearing pins 65, ears fixed head 64 is installed on the minor face of L type support 31 of described axial-adjustment unit 3, worm type of reduction gearing 611 can slide at bearing pin 65, make that anchor clamps 66 positions can be with the position adjustment of described tubing string test specimen 21 handles, and strengthened L type support 31 rigidity of described axial-adjustment unit 3; The structure of described data Collection ﹠ Processing System is: high speed ARM7 single-chip microcomputer, axial force transducer 69, radial force sensor 67 and a releasing force sensor 68; Axial force transducer 69 and radial force sensor 67 are hinged by web member 68 and described inertia dish 22 on one side, by flake joint with described force application board 35 be connected on one side, the point of application is classified as a bit, simulated the operation of people to bearing circle accurately.
When concrete operations: measured tube column assembly 2 is installed on two little T type groove slide blocks 511, rotates handwheel 541 and adjust measured tube column assemblies 2 positions, inertia dish 22 be connected after web member 68 is aimed at.Log-on data is gathered and disposal system, manual adjustments tubing string test specimen 21 positions, start automatic running program after making tubing string test specimen 21 be in the shortest flexible, the lower position that tilts, the electronic cylinder 321 of control orthoscopic, lifter 411, electronic cylinder 321 bars stretch out, lifter 411 screw rods rise, power value when the data acquisition and processing (DAP) system is captured in tubing string test specimen 21 and has just moved by axial force transducer 69, radial force sensor 67, the height that is defined in each standard is regulated power, angular adjustment power.Radially, axial adjustment finish after the servomotor 612 of control tripper 6, trapezoidal screw 62 stretches out, for after tubing string test specimen 21 locks, trapezoidal screw 62 withdrawals, 21 releases of tubing string test specimen, the power value of record power releasing force sensor 68 is the lever operated power that each standard lock requires.The electronic cylinder 321 of control orthoscopic, lifter 411, the electronic cylinder 321 bars withdrawal of orthoscopic, lifter 411 screw rods descend, at the servomotor 612 of finishing radial and axial adjusting rear drive control tripper 6, trapezoidal screw 62 stretches out, for after tubing string test specimen 21 locks, trapezoidal screw 62 withdrawals, 21 releases of tubing string test specimen.Above step repeats 2,000 times, is desired tubing string adjusting long duration test in each standard.After the off-test, data acquisition processing system record acquisition data, Treatment Analysis is finished storage.
Above-mentioned example implements not limit in any form the present invention, and all technical schemes that mode obtains of taking to be equal to replacement or equivalent transformation are all in protection domain of the present invention.
Claims (7)
1. a car steering tube column is regulated the endurance quality testing machine, comprises test bed framework (1), measured tube column assembly (2), axial-adjustment unit (3), radiai adjustment device (4), tubing string clamping tunable arrangement (5), tripper (6) and data Collection ﹠ Processing System; It is characterized in that: radiai adjustment device (4) is fixed on the test bed framework (1), axial-adjustment unit (3) one ends and test bed framework (1) are hinged, the other end is connected by pin with radiai adjustment device (4), tubing string clamping tunable arrangement (5) is fixed on the test bed framework (1), in order to clamping measured tube column assembly (2), and the position of adjustment measured tube column assembly (2), the output terminal of measured tube column assembly (2) is connected with axial-adjustment unit (3), tripper (6) is installed on the axial-adjustment unit (3), the adjusting handle of clamping measured tube column assembly (2); Measured tube column assembly (2) is being clamped on the tubing string clamping tunable arrangement (5), and adjust starting characteristics test machine behind its position, when axial-adjustment unit (3) drive measured tube column assembly (2) is done the axial adjustment motion, radiai adjustment device (4) drives measured tube column assembly (2) and does radiai adjustment, two finish to adjustment movement after, tripper (6) is implemented the lock and unlock action to measured tube column assembly (2), the simulation driver realizes car steering tube column is regulated the test of endurance quality to the operation of tubing string.
2. car steering tube column according to claim 1 is regulated the endurance quality testing machine, it is characterized in that: the structure of described test bed framework (1) is: be spliced into a rectangular parallelepiped framework by aluminium alloy extrusions, there are two pairs of short section bars to be installed in the front and back of framework respectively, short section bar one (12) is in order to install two rolling bearing units (11), and short section bar two (13) is in order to install described tubing string clamping tunable arrangement (5).
3. car steering tube column according to claim 1 is regulated the endurance quality testing machine, it is characterized in that: the structure of described measured tube column assembly (2) is: a sample stent (23) is affixed with the support of tubing string test specimen (21), and the output terminal of tubing string test specimen (21) and an inertia dish (22) that is equivalent to bearing circle are affixed.
4. car steering tube column according to claim 1 is regulated the endurance quality testing machine, it is characterized in that: the structure of described axial-adjustment unit (3) is: two pairs of aluminium section bars that one is long and the other is short vertically are connected, and be fixed on the two ends of an aluminium section bar respectively, constitute a L type support (31), each rigidly connects these L type support (31) both sides with strengthening gusset (311), increases the rigidity of support; Fix the base plate (36) of a hollow above the L type support (31), an electronic cylinder of orthoscopic (321) by a fixed support (322) be installed in described base plate (36) below, a line slideway (34) is installed in above the base plate (36); The piston rod of the electronic cylinder of orthoscopic (321) promotes web joint (33) by one and connects a force application board (35), the following fixedly connected slide block (342) of force application board (35), and slide block (342) is joined with line slideway (34) is sliding; The electronic cylinder of orthoscopic (321) promotes web joint (33), thereby drives the force application board (35) that is installed on the line slideway (34), by stretching of the electronic cylinder of orthoscopic (321) piston rod, drives moving forward and backward of force application board (35); Rolling bearing units (37) respectively are equipped with on the minor face top of L type support (31), and are hinged with the rolling bearing units (11) of described test bed framework (1) by ladder bearing pin (38).
5. car steering tube column according to claim 1 is regulated the endurance quality testing machine, it is characterized in that: the structure of described radiai adjustment device (4) is: a lifter (411) hangs by a mount pad (412) and is fixedly mounted on the described test bed framework (1), drives lifter (411) screw rod by servomotor (413) by turbine and worm; Lifter (411) screw rod bottom thread connects a pair of terminal lug (421), and middle minor axis (422) two ends respectively connect a pair of terminal lug (421) back and connect with described L type support (31) pin; Moving up and down of lifter (411) screw rod, driving described axial-adjustment unit (3) is rotation center with the rolling bearing units (11) of described test bed framework (1), moves up and down along arc track; Middle minor axis (422) is used for eliminating described axial-adjustment unit (3) motion process the stuck problem owing to cross the location.
6. car steering tube column according to claim 1 is regulated the endurance quality testing machine, it is characterized in that: the structure of described tubing string clamping device (5) is: two little T type groove slide blocks (511) slide at a big T type frid (512), regulate the spacing of two little T type groove slide blocks (511), make that the sample stent (23) of described measured tube column assembly (2) is affixed with little T type groove slide block (511), realize that testing machine is to the applicability of the tubing string test specimen (21) of different length; Big T type frid (512) becomes the aluminium alloy extrusions (52) of 15 ° of angles and horizontal positioned to be connected with surface level, threaded nut (531) in the punching of aluminium alloy extrusions (52) both sides is placed; Handwheel (541) drives two pairs of bevel gears (543) that are arranged in intermediate shaft (542) two ends and rotates, trapezoidal screw (532) is connected with bevel gear (543) key, the other end and rolling bearing units (533) are hinged, by with being threaded of nut (531), driving big T type frid (512) moves up and down, realized the applicability of testing machine to the tubing string test specimen (21) of different installation sites, and by latch mechanism (55) aluminium alloy extrusions (52) and described test-bed (1) are connected, be implemented in the reliability of testing machine in the long duration test process.
7. car steering tube column according to claim 1 is regulated the endurance quality testing machine, it is characterized in that: the structure of described tripper (6) is: drive a worm type of reduction gearing (611) by a servomotor (612), the embedded nut of worm type of reduction gearing (611) delivery outlet (614), the outside fluting of trapezoidal screw (62), screw in nut (614) by the anti-rotation boss (613) that is installed on the worm type of reduction gearing (611), the rotation of servomotor (612) is converted into the rectilinear motion of trapezoidal screw (62); Trapezoidal screw (62) head is connected with described releasing force sensor (68), by the flake joint, connect with anchor clamps (66) pin of described tubing string test specimen handle, thereby the adjusting handle of the described tubing string test specimen of push-and-pull (21) is realized release, locking function; Speed reduction unit base (615) is connected with bearing pin (65) with ears fixed head (64), ears fixed head (64) is installed on the minor face of L type support (31) of described axial-adjustment unit (3), worm type of reduction gearing (611) can slide at bearing pin (65), make anchor clamps (66) position to adjust with the position of described tubing string test specimen (21) handle, and strengthened L type support (31) rigidity of described axial-adjustment unit (3); The structure of described data Collection ﹠ Processing System is: high speed ARM7 single-chip microcomputer, axial force transducer (69), radial force sensor (67) and a releasing force sensor (68); Axial force transducer (69) and radial force sensor (67) are hinged by web member (68) and described inertia dish (22) on one side, be connected with described force application board (35) by the flake joint on one side, the point of application is classified as a bit, has simulated the operation of people to bearing circle accurately.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101403221A CN103207072A (en) | 2013-04-22 | 2013-04-22 | Testing machine for adjusting durability of car steering column |
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| CN2013101403221A CN103207072A (en) | 2013-04-22 | 2013-04-22 | Testing machine for adjusting durability of car steering column |
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| CN110702432A (en) * | 2019-10-28 | 2020-01-17 | 中车青岛四方机车车辆股份有限公司 | Variable-track-pitch wheel set testing device and method |
| US11414126B2 (en) * | 2020-04-09 | 2022-08-16 | Steering Solutions Ip Holding Corporation | Systems and methods for production in-line audible noise verification |
| CN111504665A (en) * | 2020-04-29 | 2020-08-07 | 中国检验认证集团湖北有限公司 | Rotary endurance testing machine for automobile steering column assembly |
| CN111751126A (en) * | 2020-07-07 | 2020-10-09 | 武汉捷隆汽车电动转向系统有限公司 | Method for detecting steering tube column operation performance |
| CN111751126B (en) * | 2020-07-07 | 2021-11-23 | 武汉捷隆汽车电动转向系统有限公司 | Method for detecting steering tube column operation performance |
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| CN114199537A (en) * | 2021-11-15 | 2022-03-18 | 浙江方向实业股份有限公司 | Steering wheel endurance test detection device |
| CN114199537B (en) * | 2021-11-15 | 2023-11-17 | 浙江方向实业股份有限公司 | Durable experiment check out test set of steering wheel |
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Inventor after: Wang Zhiming Inventor after: Li Wei Inventor after: Chen Pan Inventor after: Li Fu Inventor after: Jiang Wenbo Inventor after: Yu Xin Inventor after: Feng Panpan Inventor before: Wang Zhiming Inventor before: Li Wei Inventor before: Chen Shan Inventor before: Li Fu Inventor before: Jiang Wenbo Inventor before: Yu Xin Inventor before: Feng Panpan |
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Application publication date: 20130717 |