CN112485017A - Rim load testing device and method of steering wheel assembly - Google Patents
Rim load testing device and method of steering wheel assembly Download PDFInfo
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- CN112485017A CN112485017A CN202011286151.XA CN202011286151A CN112485017A CN 112485017 A CN112485017 A CN 112485017A CN 202011286151 A CN202011286151 A CN 202011286151A CN 112485017 A CN112485017 A CN 112485017A
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- 238000012360 testing method Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000010561 standard procedure Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a rim load testing device of a steering wheel assembly, wherein the steering wheel assembly is arranged on a main connecting bottom plate through a steering main shaft, and the main connecting bottom plate is fixedly arranged on the table top of a main rack; the testing device is provided with a loading chuck and a dynamometer, the loading chuck and the dynamometer are arranged on a servo motor shaft, and the loading chuck is aligned with the rim of the steering wheel assembly from top to bottom; the servo motor is fixedly arranged on the main rack through a loading mechanism bracket. By adopting the technical scheme, the fixing part of the loading part of the testing machine mechanism has a quick replacement function, the fixing part is loaded at one end of the rim of the steering wheel assembly, and the servo motor carries out loading according to the setting parameters of the control part, so that the verification of the rim side load of the steering wheel assembly is realized; the testing device has the advantages of simple structure, strong universality, easy operation, convenient maintenance and high reliability.
Description
Technical Field
The invention belongs to the technical field of mechanical property detection of automobile driving control parts. More particularly, the present invention relates to a rim load testing apparatus of a steering wheel assembly. In addition, the invention also relates to a test method of the test device.
Background
The automobile becomes a daily required vehicle, and with the continuous gradual improvement of various safety technical levels of the automobile, the structural form of a steering wheel and the rigidity of the edge of a wheel have the important influence on the injury degree of the body of a driver in an automobile collision traffic accident. The lower rim of the steering wheel with the larger rigidity of the steering wheel assembly has small deformation in collision, which is not beneficial to the absorption of the most collision energy, and similarly, the lower rim with the smaller rigidity deforms too fast in collision, which cannot play a good role in absorbing collision energy.
In a head-on collision test, injury indexes of the head, neck, chest, thigh, calf and other parts of an occupant are generally evaluated; in general, the head is easily contacted with the steering wheel and the airbag to cause injury, and the injury of the head is often fatal, so that the structure of the steering wheel skeleton needs to be optimized to reduce the injury to the head in a frontal collision.
The steering wheel is typically splined to the steering shaft and functions to convert the force applied by the driver to the rim of the steering wheel into a torque that is transmitted to the steering shaft. When steering with a larger diameter steering wheel, the driver's hand force on the steering wheel may be smaller. The steering transmission shaft is used as a connecting piece between the steering gear and the steering shaft, so that the universality of the steering gear is facilitated, errors generated during manufacturing and installation are compensated, and the installation of the steering gear and the steering wheel on the whole vehicle is more reasonable.
Although related host computer factories at home and abroad have different technical standards, in the prior art, a technical scheme for realizing the rim side load test function of the steering wheel assembly by relatively mature and perfect electric control test and mechanical device linkage does not exist.
Disclosure of Invention
The invention provides a rim load testing device of a steering wheel assembly, and aims to detect whether the rigidity performance of the steering wheel assembly of an automobile meets the related technical requirements.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to a rim load testing device of a steering wheel assembly, which comprises a main rack; the steering wheel assembly is arranged on a main connecting bottom plate through a steering main shaft, and the main connecting bottom plate is fixedly arranged on the table top of the main rack; the testing device is provided with a loading chuck and a dynamometer, the loading chuck and the dynamometer are installed on a servo motor shaft, and the loading chuck is aligned with a rim of the steering wheel assembly from top to bottom; the servo motor is fixedly arranged on the main rack through a loading mechanism bracket.
The testing device is provided with a controller, and the controller is arranged in the loading mechanism bracket.
The steering main shaft is fixedly arranged on the main connecting bottom plate through a steering main shaft fixing bolt.
The testing device is provided with a testing abnormity alarming device.
The main connecting bottom plate is fixedly arranged on the table top of the main table frame through a bottom plate fixing bolt.
In order to achieve the same purpose as the technical scheme, the invention also provides a testing method of the rim load testing device of the steering wheel assembly, which comprises the following steps:
1. opening a control mechanism system;
2. starting a controller, and setting loading force and running speed;
3. the starting controller implements loading through a servo motor; the control system of the controller operates according to the set test parameters;
4. recording experiment parameters;
5. if abnormity occurs in the test process, the alarm device is immediately stopped and started;
6. and after the controller finishes the test according to the set test parameters, the test of the test device is automatically stopped.
In preparation for the start of the test, the following mounting steps are performed:
1. connecting a steering wheel assembly to be tested with a steering main shaft, and then installing a locking nut for fixed connection; checking whether the connection is tight and free of looseness;
2. connecting the steering main shaft with a main connecting bottom plate, then installing a steering main shaft fixing bolt and a bottom plate fixing bolt, and fixedly connecting the main connecting bottom plate; checking whether the connection is tight and free of looseness;
3. mounting a loading mechanism bracket on a main rack, and pre-adjusting the position of the loading mechanism bracket; then fixedly connecting the two parts by using a fixing bolt;
4. connecting and installing a servo motor on a loading mechanism bracket, and pre-adjusting the positions of the servo motor and a steering wheel assembly;
5. connecting the dynamometer and the loading chuck with a servo motor, and checking whether the connection of each part is reliable or not and whether the connection of each part is not loose or not; check that the preload cartridge is properly positioned with the rim of the steering wheel assembly.
By adopting the technical scheme, the fixing part of the loading part of the testing machine mechanism has a quick replacement function, the fixing part is loaded at one end of the rim of the steering wheel assembly, and the servo motor carries out loading according to the setting parameters of the control part, so that the verification of the rim side load of the steering wheel assembly is realized; the testing device has the advantages of simple structure, strong universality, easy operation, convenient maintenance and high reliability.
Drawings
The contents of the drawings and the references therein are briefly described as follows:
FIG. 1 is a schematic structural diagram of a testing apparatus according to the present invention;
FIG. 2 is a schematic diagram of a controller of the testing apparatus of the present invention;
FIG. 3 is a schematic view of a system arrangement of the present invention;
FIG. 4 is a schematic cross-sectional view of the primary connecting backplane of the present invention;
FIG. 5 is a left side cross-sectional view of the structure shown in FIG. 4;
FIG. 6 is a top view of the structure shown in FIG. 4;
FIG. 7 is a schematic view of a steering main shaft according to the present invention;
fig. 8 is a plan view of the structure shown in fig. 7.
1. The steering mechanism comprises a main rack 2, a main connecting bottom plate 3, a steering main shaft 4, a steering wheel assembly 5, a loading mechanism support 6, a servo motor 7, a dynamometer 8, a loading chuck 9, a locking nut M35, a locking nut M8, a steering main shaft fixing bolt M8, a bottom plate fixing bolt 11, a steering main shaft fixing bolt 12 and a controller.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
The structure of the invention, as shown in fig. 1 and 2, is a rim load testing device of a steering wheel assembly, which comprises a main rack 1. The main rack 1 is used for mounting tested parts and all loading parts; a servo motor for testing a steering wheel assembly in the testing device is connected with a dynamometer and a pressurizing component in a loading mode, the pressurizing component operates according to position loading, loading force and loading speed required by an execution technology, and a control mechanism is used for achieving a rim side load testing function of the whole system.
In order to solve the problems in the prior art, overcome the defects and achieve the aim of detecting whether the rigidity performance of the automobile steering wheel assembly meets the related technical requirements, the invention adopts the specific technical scheme that:
as shown in fig. 1, the rim load testing device of the steering wheel assembly of the present invention; the steering wheel assembly 4 is arranged on a main connecting bottom plate 2 through a steering main shaft 3, and the main connecting bottom plate 2 is fixedly arranged on the table top of the main rack 1; the testing device is provided with a loading chuck 8 and a dynamometer 7, the loading chuck 8 and the dynamometer 7 are installed on the shaft of the servo motor 6, and the loading chuck 8 is aligned with the rim of the steering wheel assembly 4 from top to bottom; the servo motor 6 is fixedly arranged on the main rack 1 through a loading mechanism bracket 5.
As shown in fig. 3, the present invention comprises a steering wheel assembly, a control component (control mechanism), a mechanical device (ram and dynamometer), and an execution component (servo motor) device, wherein the fixing component of the loading component of the testing machine mechanism has a quick replacement function; the loading is carried out at one end of the rim of the steering wheel assembly, the servo motor carries out the loading according to the setting parameters of the control part, and the whole process is controllable and reliable.
The invention relates to a test device and a test method for preventing the rim edge of an automobile steering wheel assembly from failing by controlling a servo motor, a dynamometer and a loading pressure head through a control mechanism, wherein the test device comprises a support for supporting a steering wheel, the servo motor for applying pressure to the rim edge of the steering wheel and other loading equipment, a pressing block and a dynamometer are arranged at the tail end of the loading mechanism equipment, the axis of a piston rod of the loading mechanism is vertical to the surface of the pressing block, a specified force value is applied, and the rim edge of the automobile steering wheel assembly is prevented from failing. The testing device is simple in structure, strong in universality, easy to operate, convenient to maintain and high in reliability, and the testing method meets the standard requirement.
As shown in fig. 2, the testing device is provided with a controller 12, and the controller 12 is arranged in the loading mechanism bracket 5.
The controller 12, i.e. a control device (industrial personal computer), is the central pivot of the whole test equipment, realizes the control of the whole test equipment through the control device (industrial personal computer), and outputs a control signal to the dynamometer; the dynamometer is fed back to the control device and the mechanical actuating mechanism through signal conversion; the servo motor controls the movement of the tested sample through the control mechanism. Can work according to the requirements of a test standard method.
As shown in fig. 1:
the steering main shaft 3 is fixedly arranged on the main connecting bottom plate 2 through a steering main shaft fixing bolt 10.
The main connecting bottom plate 2 is fixedly arranged on the table top of the main table frame 1 through a bottom plate fixing bolt 11.
The specific structure of the main connection base plate 2 is shown in fig. 4, 5 and 6.
The detailed structure of the steering main shaft 3 is shown in fig. 7 and 8.
The testing device is provided with a testing abnormity alarming device. The device is used for immediately stopping and starting the alarm device to give an alarm when an abnormality is found in the test process, so that the test safety is improved.
In order to achieve the same purpose as the technical scheme, the invention also provides a testing method of the rim load testing device of the steering wheel assembly, which comprises the following steps:
1. opening a control mechanism system;
2. starting the controller 12, and setting loading force and running speed;
3. the controller 12 is started to load through the servo motor 6, and a control system of the controller 12 operates according to set test parameters;
4. recording experiment parameters;
5. if abnormity occurs in the test process, the alarm device is immediately stopped and started;
6. after the controller 12 finishes the test according to the set test parameters, the test of the test device is automatically stopped.
In preparation for the start of the test, the following mounting steps are performed:
1. connecting a measured steering wheel assembly 4 with a steering main shaft 3, and then installing a locking nut 9 for fixed connection; checking whether the connection is tight and free of looseness;
2. connecting a steering main shaft 3 with a main connecting bottom plate 2, then installing a steering main shaft fixing bolt 10 and a bottom plate fixing bolt 11, and fixedly connecting the main connecting bottom plate 2; checking whether the connection is tight and free of looseness;
3. mounting a loading mechanism bracket 5 on the main rack 1, and pre-adjusting the position of the loading mechanism bracket 5; then fixedly connecting the two parts by using a fixing bolt;
4. connecting and installing a servo motor 6 on a loading mechanism bracket 5, and pre-adjusting the positions of the servo motor 6 and a steering wheel assembly 4;
5. connecting a dynamometer 7 and a loading chuck 8 with a servo motor 6, and checking whether the connection of each component is reliable or not and whether the connection is loose or not; check that preload cartridge 8 and the rim of steering wheel assembly 4 are in the correct position.
If the connection is not flexible or the position is incorrect, adjustment and fastening are needed, so that the whole testing device is more stable and reliable, and more accurate testing data is obtained.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (7)
1. A rim load testing device of a steering wheel assembly comprises a main rack (1), and is characterized in that: the steering wheel assembly (4) is arranged on the main connecting bottom plate (2) through the steering main shaft (3), and the main connecting bottom plate (2) is fixedly arranged on the table top of the main rack (1); the testing device is provided with a loading chuck (8) and a dynamometer (7), the loading chuck (8) and the dynamometer (7) are arranged on a shaft of a servo motor (6), and the loading chuck (8) is aligned to the rim of the steering wheel assembly (4) from top to bottom; the servo motor (6) is fixedly arranged on the main rack (1) through a loading mechanism bracket (5).
2. A rim load testing device of a steering wheel assembly according to claim 1, wherein: the testing device is provided with a controller (12), and the controller (12) is arranged in the loading mechanism bracket (5).
3. A rim load testing device of a steering wheel assembly according to claim 1, wherein: the steering main shaft (3) is fixedly arranged on the main connecting bottom plate (2) through a steering main shaft fixing bolt (10).
4. A rim load testing device of a steering wheel assembly according to claim 1, wherein: the testing device is provided with a testing abnormity alarming device.
5. A rim load testing device of a steering wheel assembly according to claim 1, wherein: the main connecting bottom plate (2) is fixedly arranged on the table top of the main table frame (1) through a bottom plate fixing bolt (11).
6. The method of testing a rim load testing device of a steering wheel assembly according to any one of claims 1 to 5, wherein: the process of the test method is as follows:
1) opening the control mechanism system;
2) the starting controller (12) is used for setting loading force and running speed;
3) the starting controller (12) implements loading through the servo motor (6); the control system of the controller (12) operates according to set test parameters;
4) recording experiment parameters;
5) if abnormity occurs in the test process, the alarm device is immediately stopped and started;
6) and after the controller (12) finishes the test according to the set test parameters, the test of the test device is automatically stopped.
7. The method of testing a rim load testing device of a steering wheel assembly according to claim 6, wherein: in preparation for the start of the test, the following mounting steps are performed:
1) connecting a steering wheel assembly (4) to be tested with a steering main shaft (3), and then installing a locking nut (9) for fixed connection; checking whether the connection is tight and free of looseness;
2) connecting the steering main shaft (3) with the main connecting bottom plate (2), installing a steering main shaft fixing bolt (10) and a bottom plate fixing bolt (11), and fixedly connecting the main connecting bottom plate (2); checking whether the connection is tight and free of looseness;
3) mounting a loading mechanism bracket (5) on the main rack (1), and pre-adjusting the position of the loading mechanism bracket (5); then fixedly connecting the two parts by using a fixing bolt;
4) connecting and installing a servo motor (6) on a loading mechanism bracket (5), and pre-adjusting the positions of the servo motor (6) and a steering wheel assembly (4);
5) connecting the dynamometer (7) and the loading chuck (8) with the servo motor (6), and checking whether the connection of each part is reliable or not without looseness; checking whether the preloading clamp (8) and the rim of the steering wheel assembly (4) are positioned correctly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286151.XA CN112485017A (en) | 2020-11-17 | 2020-11-17 | Rim load testing device and method of steering wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011286151.XA CN112485017A (en) | 2020-11-17 | 2020-11-17 | Rim load testing device and method of steering wheel assembly |
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| CN112485017A true CN112485017A (en) | 2021-03-12 |
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| CN202011286151.XA Pending CN112485017A (en) | 2020-11-17 | 2020-11-17 | Rim load testing device and method of steering wheel assembly |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980023693A (en) * | 1996-09-30 | 1998-07-06 | 양재신 | Durability test device of automobile steering wheel |
| DE10022091A1 (en) * | 2000-05-08 | 2001-11-15 | Willi Elbe Gelenkwellen Gmbh & | Simulation device for testing telescopic steering column in crash situation, has rotary bearings, circular arc-shaped slits and through bores |
| CN200989869Y (en) * | 2006-12-29 | 2007-12-12 | 比亚迪股份有限公司 | Steering wheel strength detecting equipment |
| KR20110137715A (en) * | 2010-06-17 | 2011-12-23 | 미츠비시 쥬고교 가부시키가이샤 | Vehicle crash simulation test apparatus and method, and control system for vehicle crash simulation test apparatus |
| CN102901635A (en) * | 2011-07-29 | 2013-01-30 | 上汽通用五菱汽车股份有限公司 | Steering wheel fatigue-bending testing block and testing device |
| CN202853976U (en) * | 2012-10-17 | 2013-04-03 | 南京汽车集团有限公司 | Strength testing device for steering wheel of automobile |
| CN203572660U (en) * | 2013-09-16 | 2014-04-30 | 浙江吉利控股集团有限公司 | Axial direction performance test detection tool for steering wheel skeleton |
| CN105043753A (en) * | 2015-09-07 | 2015-11-11 | 河北工程大学 | Vehicle body installation fixing point static rigidity test bench and test method thereof |
| CN211061346U (en) * | 2019-10-28 | 2020-07-21 | 脉创测控装备科技（苏州）有限公司 | Fatigue test system for steering wheel |
-
2020
- 2020-11-17 CN CN202011286151.XA patent/CN112485017A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980023693A (en) * | 1996-09-30 | 1998-07-06 | 양재신 | Durability test device of automobile steering wheel |
| DE10022091A1 (en) * | 2000-05-08 | 2001-11-15 | Willi Elbe Gelenkwellen Gmbh & | Simulation device for testing telescopic steering column in crash situation, has rotary bearings, circular arc-shaped slits and through bores |
| CN200989869Y (en) * | 2006-12-29 | 2007-12-12 | 比亚迪股份有限公司 | Steering wheel strength detecting equipment |
| KR20110137715A (en) * | 2010-06-17 | 2011-12-23 | 미츠비시 쥬고교 가부시키가이샤 | Vehicle crash simulation test apparatus and method, and control system for vehicle crash simulation test apparatus |
| CN102901635A (en) * | 2011-07-29 | 2013-01-30 | 上汽通用五菱汽车股份有限公司 | Steering wheel fatigue-bending testing block and testing device |
| CN202853976U (en) * | 2012-10-17 | 2013-04-03 | 南京汽车集团有限公司 | Strength testing device for steering wheel of automobile |
| CN203572660U (en) * | 2013-09-16 | 2014-04-30 | 浙江吉利控股集团有限公司 | Axial direction performance test detection tool for steering wheel skeleton |
| CN105043753A (en) * | 2015-09-07 | 2015-11-11 | 河北工程大学 | Vehicle body installation fixing point static rigidity test bench and test method thereof |
| CN211061346U (en) * | 2019-10-28 | 2020-07-21 | 脉创测控装备科技（苏州）有限公司 | Fatigue test system for steering wheel |
Non-Patent Citations (2)
| Title |
|---|
| 李胜琴等: "汽车转向系统综合刚度测量试验装置研究", 《森林工程》 * |
| 覃海艺等: "方向盘骨架力学试验的影响因素与改进", 《上海汽车》 * |
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Application publication date: 20210312 |
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