CN113984412B - Durability testing device and method for steering column adjusting mechanism - Google Patents
Durability testing device and method for steering column adjusting mechanism Download PDFInfo
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- CN113984412B CN113984412B CN202111382554.9A CN202111382554A CN113984412B CN 113984412 B CN113984412 B CN 113984412B CN 202111382554 A CN202111382554 A CN 202111382554A CN 113984412 B CN113984412 B CN 113984412B
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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
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention relates to a durability testing device and a testing method of a steering column adjusting mechanism, and belongs to the technical field of steering column detecting equipment. The durability testing device of the steering column adjusting mechanism comprises a base, a rotating plate, a rotating cylinder, a lifting cylinder, a push-pull cylinder, a guide seat and a connecting sleeve; two groups of support vertical plates are symmetrically arranged on the base; the upper ends of the supporting vertical plates are hinged with a rotating plate through connecting pins; a lifting cylinder is fixedly arranged on the base below one end of the rotating plate; the upper end of the lifting cylinder is connected with the bottom end of the rotating plate through a universal joint; the middle part of the rotating plate is provided with a rotating plate through a rotating cylinder; a poking fork is eccentrically arranged on the rotating disk; the guide seat is fixedly arranged above one end of the rotating plate, the structure is compact, the design is ingenious, the problem that the error is large in the existing endurance test experiment of the manual completion steering column adjusting mechanism is solved, and the device is particularly suitable for the requirement of the detection experiment of the steering column adjusting mechanism.
Description
Technical Field
The invention relates to a durability testing device and a testing method of a steering column adjusting mechanism, and belongs to the technical field of steering column detecting equipment.
Background
The automobile steering column is an important part of an automobile steering system and comprises a column support 1 and a column body; the upper part of the pipe column support 1 is provided with a pipe column body; one end of the pipe column body is hinged with the pipe column support 1 through a rotary pin 2; the pipe column body comprises an adjusting mechanism; the adjusting mechanism comprises an adjusting handle 3 and an upper pipe column 4; the circumference surface of the tubular column body is provided with an adjusting handle 3; one end of the pipe column body is movably provided with an upper pipe column 4. After the automobile steering column is produced, the adjusting mechanism of the automobile steering column needs to be tested and checked, and the existing test mode at present is as follows:
firstly, fixing a pipe column support 1 on a workbench surface, then, rotating the pipe column body upwards to a limit position, loosening an adjusting handle 3, then, pushing and pulling an upper pipe column 4 again, and then, screwing the adjusting handle 3; after the process is finished, the pipe column body is rotated downwards to the limit position, and the adjustment handle 3 is released, and then the upper pipe string 4 is pushed and pulled once again, and then the adjustment handle 3 is screwed. The above process is called a detection cycle, and the existing endurance test device for the steering column adjusting mechanism is used for manually completing a plurality of detection cycles and then detecting whether the automobile steering column is damaged. When the detection cycle is completed manually, the problems of high labor intensity, easy deformation of the detection action and large error of the detection result caused by large counting error exist; therefore, it is necessary to develop a endurance testing apparatus, so that it can mechanically complete the endurance testing experiment of the steering column adjusting mechanism, so as to solve the above problems existing in the existing detection method.
Disclosure of Invention
The invention is characterized in that the purpose is that: the device for testing the durability of the steering column adjusting mechanism is compact in structure and ingenious in design, and solves the problem that the error is large in the conventional manual test for testing the durability of the steering column adjusting mechanism.
The technical scheme of the invention is as follows:
a durability test device and a test method of a steering column adjusting mechanism, the device comprises a base, a rotating plate, a rotating cylinder, a lifting cylinder, a push-pull cylinder, a guide seat and a connecting sleeve; the method is characterized in that: two groups of support vertical plates are symmetrically arranged on the base; the upper ends of the supporting vertical plates are hinged with a rotating plate through connecting pins; a lifting cylinder is fixedly arranged on the base below one end of the rotating plate; the upper end of the lifting cylinder is connected with the bottom end of the rotating plate through a universal joint; the middle part of the rotating plate is provided with a rotating plate through a rotating cylinder; a poking fork is eccentrically arranged on the rotating disk; a guide seat is fixedly arranged above one end of the rotating plate; the inside of the guide seat is slidably provided with a connecting sleeve; a push-pull cylinder is fixedly arranged on the rotating plate at one end of the connecting sleeve; the end head of a piston rod of the push-pull cylinder is fixedly connected with the connecting sleeve through a connector; and a plurality of support columns are symmetrically arranged on the base at the other end of the connecting sleeve.
One end of the connecting sleeve is provided with a connecting screw hole; the other end of the connecting sleeve is connected with a connector through threads; one end of the connector is in threaded connection with the end head of a piston rod of the push-pull cylinder.
The middle part of the upper end of the supporting vertical plate is provided with an adjusting sliding hole; one end of the rotating plate is provided with a hinge hole; one end of the rotating plate is provided with a hinge hole which is hinged with the adjusting slide hole through a connecting pin.
The middle part of the connecting pin is provided with a positioning flange; a surface bearing is arranged in the positioning flange; an external thread is arranged on the circumferential surface of the connecting pin at one side of the positioning flange; the connecting pin is in threaded connection with the hinge hole through external threads; the positioning flange is connected with the support vertical plate in a clamping way;
the upper end head of the support column is provided with an assembly screw hole.
The universal joint comprises an assembly sleeve, a rotary ball pin and a connecting sleeve; the upper end of the lifting cylinder is fixedly provided with a connecting sleeve; the connecting sleeve is connected with an assembling sleeve in a threaded manner; the inside of the assembly set is provided with a rotary ball pin; the rod-shaped part of the rotary ball pin passes through the assembly sleeve and then extends to the outside of the assembly sleeve, and the rotary ball pin extending to the outside of the assembly sleeve is provided with external threads; the rotating ball pin is fixedly connected with the rotating plate through external threads.
The invention has the advantages that:
the endurance test device of the steering column adjusting mechanism has compact structure and ingenious design, can mechanically slide to complete the endurance test of the steering column adjusting mechanism, solves the problem that the endurance test of the existing manual steering column adjusting mechanism has large error, and is particularly suitable for the requirement of the detection test of the steering column adjusting mechanism.
Drawings
FIG. 1 is a schematic view of an automotive steering column according to the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 2;
FIG. 4 is a schematic view of the structure in the direction B-B in FIG. 2;
FIG. 5 is a schematic view of the structure of the support riser of the present invention;
FIG. 6 is an enlarged schematic view of FIG. 2 at C;
FIG. 7 is an enlarged schematic view of the structure of FIG. 3D;
FIG. 8 is a schematic view of a universal joint according to the present invention;
fig. 9 is a schematic view of the working state structure of the present invention.
In the figure: 1. a tubular column support; 2. a rotary pin; 3. an adjusting handle; 4. a pipe column is arranged; 5. a base; 6. a supporting vertical plate; 7. a connecting pin; 8. a rotating plate; 9. a lifting cylinder; 10. a universal joint; 11. a rotary cylinder; 12. a rotating disc; 13. a poking fork; 14. a guide seat; 15. a connecting sleeve; 16. a push-pull cylinder; 17. a connector; 18. a support column; 19. a connecting screw hole; 20. adjusting the sliding hole; 21. a hinge hole; 22. positioning the flange; 23. an external thread; 24. assembling a screw hole; 25. a face bearing; 26. assembling a set; 27. rotating the ball pin; 28. and (5) connecting the sleeve.
Detailed Description
The durability testing device of the steering column adjusting mechanism comprises a base 5, a rotating plate 8, a rotating cylinder 11, a lifting cylinder 9, a push-pull cylinder 16, a guide seat 14 and a connecting sleeve 15 (see figure 2 of the specification).
Two groups of support vertical plates 6 (see figures 2 and 3 of the description) are symmetrically arranged on the base 5; the middle part of the upper end of the supporting vertical plate 6 is provided with an adjusting slide hole 20 (see fig. 5 of the specification).
The upper ends of the supporting vertical plates 6 are hinged with a rotating plate 8 (see the accompanying drawings 2 and 4 of the specification) through connecting pins 7; one end of the rotating plate 8 is rotatable about the connecting pin 7.
One end of the rotating plate 8 is provided with a hinge hole 21 (see fig. 6 of the specification); one end of the rotating plate 8 is provided with a hinge hole 21 to be hinge-coupled with the adjustment slide hole 20 by the coupling pin 7 (see fig. 6 of the specification).
The middle part of the connecting pin 7 is provided with a positioning device flanges 22 (see fig. 6 of the specification); the positioning flange 22 is internally provided with a face bearing 25 (see fig. 6 of the specification); an external thread 23 is arranged on the circumferential surface of the connecting pin 7 at one side of the positioning flange 22; the connecting pin 7 is in threaded connection with the hinge hole 21 through the external thread 23; the positioning flange 22 and the surface bearing 25 are connected with the supporting vertical plate 6 in a clamping way. The purpose of the connection pin 7 being so arranged is that: so that, during assembly, when the connecting pin 7 is screwed down, the connecting pin 7 can clamp the supporting riser 6 through the face bearing 25 and the rotating plate 8; the rotary plate 8 is clamped with the supporting vertical plate 6, so that the rotary plate 8 can only rotate around the connecting pin 7 under the action of the surface bearing 25 and cannot move in other directions; when the connecting pin 7 is loosened, the purpose of adjusting the up-down position of the connecting pin 7 along the adjusting slide hole 20 so that the connecting pin can be in the same straight line with the rotary pin 2 on the steering column of the automobile during operation can be achieved.
In order to enhance the flexibility of rotation of the rotating plate 8 relative to the supporting riser 6, a manner of sleeving a face bearing 25 (not shown in the specification) on the connecting pin 7 between the rotating plate 8 and the supporting riser 6 may be adopted, so that when the connecting pin 7 is screwed down, the rotating plate 8 can flexibly rotate relative to the supporting riser 6 under the action of the face bearing 25, and the relative position between the connecting pin 7 and the rotating plate 8 and the supporting riser 6 can be kept unchanged.
A lifting cylinder 9 (see figure 4 of the specification) is fixedly arranged on the base 5 below one end of the rotating plate 8; the upper end of the lifting cylinder 9 is connected to the bottom end of the rotating plate 8 via a universal joint 10 (see fig. 4 of the specification).
The universal joint 10 includes a mounting sleeve 26, a swivel ball 27 and a connecting sleeve 28 (see fig. 8 of the specification); the upper end of the lifting cylinder 9 is fixedly provided with a connecting sleeve 28; the connecting sleeve 28 is screwed with the assembling sleeve 26; the inside of the assembly sleeve 26 is provided with a rotary ball pin 27; the rod-shaped part of the rotating ball pin 27 passes through the assembly sleeve 26 and then extends to the outside of the assembly sleeve 26, and the rotating ball pin 27 extending to the outside of the assembly sleeve 26 is provided with external threads 23; the swivel ball pin 27 is fixedly connected to the swivel plate 8 by means of an external thread 23.
The purpose of the universal joint 10 being so arranged is to: so that the lifting cylinder 9 can be kept in movable connection with the rotating plate 8 via the universal joint 10, so that the lifting cylinder 9 can freely rotate about the connecting pin 7 via one end of the universal joint 10.
The middle part of the rotating plate 8 is provided with a rotating plate 12 through a rotating cylinder 11; a toggle fork 13 is eccentrically arranged on the rotary disk 12 (see fig. 2 and 3 of the specification); when the rotary cylinder 11 works, the rotary disk 12 drives the toggle fork 13 to swing back and forth. The spacing between the fork openings of the poking fork 13 is larger than the thickness of the adjusting handle 3.
After the adjusting handle 3 of the automobile steering column is clamped into the stirring fork 13 during operation, the distance between fork openings of the stirring fork 13 is larger than the thickness of the adjusting handle 3, so that the stirring fork 13 can drive the adjusting handle 3 to act along with the rotating disc 12 to rotate back and forth, and the aim of loosening or screwing the adjusting handle 3 is fulfilled. The movement amplitude of the adjusting handle 3 is smaller in the process, so that the problem of 'jamming' of the poking fork 13 does not occur.
A guide seat 14 is fixedly arranged above one end of the rotary plate 8; the inside of the guide holder 14 is slidably fitted with an engagement sleeve 15 (see fig. 2, 3 and 7 of the description). A push-pull cylinder 16 is fixedly arranged on the rotary plate 8 at one end of the connecting sleeve 15;
one end of the engagement sleeve 15 is provided with a connecting screw hole 19 (see fig. 7 of the specification); work of in the time-course of which the first and second contact surfaces, the engagement sleeve 15 is threadably connected to the upper end of the upper column 4 of the steering column of the automobile through the connection screw hole 19 (see fig. 9 of the specification).
The other end of the connecting sleeve 15 is connected with a connector 17 in a threaded manner; one end of the connecting head 17 is in threaded connection with the end of the piston rod of the push-pull cylinder 16 (see fig. 7 of the specification). The push-pull cylinder 16 can drive the engagement sleeve 15 to slide back and forth along the guide seat 14 through the connector 17.
A plurality of support columns 18 (see fig. 2 of the specification) are symmetrically arranged on the base 5 at the other end of the connecting sleeve 15. The upper end of the support column 18 is provided with an assembly screw hole 24 (see fig. 2 of the specification). In operation, the column support 1 of the steering column of the automobile can be fixedly mounted on the support column 18 by a screw (not shown in the drawing) with the fitting screw hole 24 (see fig. 9 of the drawing).
The endurance test device of the steering column adjusting mechanism also comprises a motion controller, wherein the model of the motion controller is intelligent YAV AD10; the motion controller may control the programmed actions of the various moving parts in the present application.
The durability test method of the steering column adjusting mechanism comprises the following steps:
1) Assembling the workpiece to be detected;
firstly, placing an automobile steering column to be detected on a support column 18 of a durability testing device of a steering column adjusting mechanism, and clamping an adjusting handle 3 of the automobile steering column into a poking fork 13; the upper end of the upper column 4 of the steering column of the motor vehicle is then screwed into the connecting screw hole 19 of the adapter sleeve 15. The column support 1 of the lower steering column of the motor vehicle is then fastened to the support column 18 by means of screws (not shown in the drawing) in cooperation with the fitting screw holes 24 (see figure 9 of the drawing), thus, the assembly work of the workpiece to be detected can be completed.
2) Performing an upper limit test;
after the assembly of the workpiece to be detected is completed, the connecting pin 7 is loosened, and when the connecting pin 7 is adjusted to be in the same straight line with the rotary pin 2 on the automobile steering column, the connecting pin 7 is locked so as to complete the adjustment work of the rotary plate 8.
After the adjustment work of the rotary plate 8 is completed, the motion controller firstly controls the lifting air cylinder 9 to drive the rotary plate 8 to rotate upwards around the connecting pin 7 through the universal joint 10, and after the rotary plate 8 drives the upper pipe column 4 to rotate upwards to the limit position, the rotary air cylinder 11 rotates through the rotary disk 12 and the toggle fork 13 to loosen the adjusting handle 3; then the push-pull cylinder 16 drives the upper pipe column 4 to move back and forth once through the connector 17 and the connecting sleeve 15 and then reset; the rotary cylinder 11 then rotates the locking adjustment handle 3 through the rotary disk 12 and the toggle fork 13, and the endurance testing device of the column-oriented adjustment mechanism completes an upper limit test.
3) Performing lower limit test
After the endurance testing device of the steering column adjusting mechanism finishes an upper limit test, the lifting cylinder 9 drives the rotating plate 8 to rotate downwards around the connecting pin 7 through the universal joint 10, and after the rotating plate 8 drives the upper column 4 to rotate downwards to a limit position, the rotating cylinder 11 rotates through the rotating disc 12 and the toggle fork 13 to loosen the adjusting handle 3; then the push-pull cylinder 16 drives the upper pipe column 4 to move back and forth once through the connector 17 and the connecting sleeve 15 and then reset; the rotary cylinder 11 then rotates the locking adjustment handle 3 through the rotary disk 12 and the toggle fork 13, and the endurance test device of the column-oriented adjustment mechanism completes a lower limit test.
4) Continuously performing detection circulation;
after the endurance testing device of the steering column adjusting mechanism completes one upper limit test and one lower limit test, namely after one detection cycle is completed, the endurance testing device of the steering column adjusting mechanism continuously and continuously carries out the detection cycle, after the detection times set by a program are completed, the endurance testing device stops acting, then the automobile steering column on the endurance testing device is detached for inspection, and if the automobile steering column is inspected to be qualified, the endurance testing is proved to be qualified, otherwise, the automobile steering column is an unqualified product.
The endurance test device of the steering column adjusting mechanism has compact structure and ingenious design, can mechanically slide to complete the endurance test of the steering column adjusting mechanism, solves the problem that the endurance test of the existing manual steering column adjusting mechanism has large error, and is particularly suitable for the requirement of the detection test of the steering column adjusting mechanism.
Claims (7)
1. A durability test method of a steering column adjusting mechanism is characterized in that: it comprises the method comprises the following steps:
1) Assembling the workpiece to be detected;
firstly, placing an automobile steering column to be detected on a support column (18) of a durability testing device of a steering column adjusting mechanism, and clamping an adjusting handle (3) of the automobile steering column into a toggle fork (13); then the upper end of the upper pipe column (4) of the automobile steering pipe column is connected with a connecting screw hole (19) on the connecting sleeve (15) in a threaded connection mode; then, the pipe column support (1) of the lower automobile steering pipe column is fixedly arranged on the support column (18) through the matching of the screw rod and the assembly screw hole (24), so that the assembly work of the workpiece to be detected can be completed;
2) Performing an upper limit test;
after the assembly of the detected workpiece is completed, loosening the connecting pin (7), and locking the connecting pin (7) when the connecting pin (7) is adjusted to be in the same straight line with the rotary pin (2) on the automobile steering column so as to complete the adjustment work of the rotary plate (8);
after the adjustment work of the rotating plate (8) is completed, the motion controller firstly controls the lifting cylinder (9) to drive the rotating plate (8) to rotate upwards around the connecting pin (7) through the universal joint (10), and after the rotating plate (8) drives the upper pipe column (4) to rotate upwards to a limit position, the rotating cylinder (11) rotates through the rotating plate (12) and the toggle fork (13) to loosen the adjusting handle (3); then the push-pull air cylinder (16) drives the upper pipe column (4) to move back and forth once through the connector (17) and the connecting sleeve (15) and then reset; then the rotary cylinder (11) rotates the locking adjusting handle (3) through the rotary disc (12) and the toggle fork (13), so that the endurance testing device of the steering column adjusting mechanism finishes an upper limit test;
3) Performing lower limit test
After the endurance testing device of the steering column adjusting mechanism finishes an upper limit test, the lifting cylinder (9) drives the rotating plate (8) to rotate downwards around the connecting pin (7) through the universal joint (10), and after the rotating plate (8) drives the upper column (4) to rotate downwards to a limit position, the rotating cylinder (11) rotates through the rotating plate (12) and the toggle fork (13) to loosen the adjusting handle (3); then the push-pull air cylinder (16) drives the upper pipe column (4) to move back and forth once through the connector (17) and the connecting sleeve (15) and then reset; then the rotary cylinder (11) rotates the locking adjusting handle (3) through the rotary disc (12) and the toggle fork (13), so that the endurance testing device of the steering column adjusting mechanism finishes a lower limit test;
4) Continuously performing detection circulation;
after the endurance testing device of the steering column adjusting mechanism completes one upper limit test and one lower limit test, namely after one detection cycle is completed, the endurance testing device of the steering column adjusting mechanism continuously and continuously carries out the detection cycle, after the detection times set by a program are completed, the endurance testing device stops acting, then the automobile steering column on the endurance testing device is detached for inspection, and if the automobile steering column is inspected to be qualified, the endurance testing is proved to be qualified, otherwise, the automobile steering column is an unqualified product.
2. The durability test method for a steering column adjustment mechanism according to claim 1, characterized in that: the endurance testing device of the steering column adjusting mechanism comprises a base (5), a rotating plate (8), a rotating cylinder (11), a lifting cylinder (9), a push-pull cylinder (16), a guide seat (14) and a connecting sleeve (15); the method is characterized in that: two groups of support vertical plates (6) are symmetrically arranged on the base (5); the upper ends of the supporting vertical plates (6) are hinged with a rotating plate (8) through connecting pins (7); a lifting cylinder (9) is fixedly arranged on the base (5) below one end of the rotating plate (8); the upper end of the lifting cylinder (9) is connected with the bottom end of the rotating plate (8) through a universal joint (10); the middle part of the rotating plate (8) is provided with a rotating disc (12) through a rotating cylinder (11); a poking fork (13) is eccentrically arranged on the rotating disc (12); a guide seat (14) is fixedly arranged above one end of the rotating plate (8); inside sliding of the guide seat (14) is provided with a connecting sleeve (15); a push-pull cylinder (16) is fixedly arranged on the rotating plate (8) at one end of the connecting sleeve (15); the end head of a piston rod of the push-pull cylinder (16) is fixedly connected with the connecting sleeve (15) through a connector (17); a plurality of support columns (18) are symmetrically arranged on the base (5) at the other end of the connecting sleeve (15).
3. A durability testing method for a steering column adjustment mechanism according to claim 2, characterized in that: one end of the connecting sleeve (15) is provided with a connecting screw hole (19); the other end of the connecting sleeve (15) is connected with a connector (17) through threads; one end of the connector (17) is in threaded connection with the end head of a piston rod of the push-pull cylinder (16).
4. A durability testing method for a steering column adjustment mechanism according to claim 3, wherein: an adjusting slide hole (20) is formed in the middle of the upper end of the supporting vertical plate (6); one end of the rotating plate (8) is provided with a hinge hole (21); one end of the rotating plate (8) is provided with a hinge hole (21) which is hinged with the adjusting slide hole (20) through a connecting pin (7).
5. The durability test method for a steering column adjustment mechanism according to claim 4, wherein: the middle part of the connecting pin (7) is provided with a positioning flange (22); a surface bearing (25) is arranged in the positioning flange (22); an external thread (23) is arranged on the circumferential surface of the connecting pin (7) at one side of the positioning flange (22); the connecting pin (7) is in threaded connection with the hinge hole (21) through an external thread (23); and is connected with the supporting vertical plate (6) in a clamping way through a positioning flange (22).
6. The durability test method for a steering column adjustment mechanism according to claim 5, wherein: the upper end head of the support column (18) is provided with an assembling screw hole (24).
7. The durability test method for a steering column adjustment mechanism according to claim 6, wherein: the universal joint (10) comprises a mounting sleeve (26), a rotating ball pin (27) and a connecting sleeve (28); the upper end of the lifting cylinder (9) is fixedly provided with a connecting sleeve (28); the connecting sleeve (28) is connected with an assembling sleeve (26) in a threaded manner; a rotary ball pin (27) is arranged in the assembly sleeve (26); the rod-shaped part of the rotary ball pin (27) passes through the assembly sleeve (26) and then extends to the outside of the assembly sleeve, and external threads (23) are arranged on the rotary ball pin (27) extending to the outside of the assembly sleeve (26); the rotary ball pin (27) is fixedly connected with the rotary plate (8) through an external thread (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111382554.9A CN113984412B (en) | 2021-11-22 | 2021-11-22 | Durability testing device and method for steering column adjusting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111382554.9A CN113984412B (en) | 2021-11-22 | 2021-11-22 | Durability testing device and method for steering column adjusting mechanism |
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| Publication Number | Publication Date |
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| CN113984412A CN113984412A (en) | 2022-01-28 |
| CN113984412B true CN113984412B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111382554.9A Active CN113984412B (en) | 2021-11-22 | 2021-11-22 | Durability testing device and method for steering column adjusting mechanism |
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| DE4121227C1 (en) * | 1991-06-27 | 1992-09-24 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Determining internal noise levels in vehicle caused by servo pump - measuring output pressure of pump pulses to determine loudness of hum, whistle and hiss for different pump speeds and pressures |
| KR20150124290A (en) * | 2014-04-28 | 2015-11-05 | 주식회사 대동 | Apparatus for testing the endurance of Apparatus for Electronic Steering Column Lock |
| KR102127423B1 (en) * | 2018-12-27 | 2020-06-26 | 주식회사 세원정공 | Durability testing method and system for a motor driven power steering mounting part |
| CN111735646A (en) * | 2020-07-13 | 2020-10-02 | 湖北唯思凌科装备制造有限公司 | Clamping driving device of input shaft of automobile steering device |
| CN213933077U (en) * | 2020-11-09 | 2021-08-10 | 宁波拓普集团股份有限公司 | Durable automatic testing arrangement is adjusted with handle to tubular column |
-
2021
- 2021-11-22 CN CN202111382554.9A patent/CN113984412B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4121227C1 (en) * | 1991-06-27 | 1992-09-24 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Determining internal noise levels in vehicle caused by servo pump - measuring output pressure of pump pulses to determine loudness of hum, whistle and hiss for different pump speeds and pressures |
| KR20150124290A (en) * | 2014-04-28 | 2015-11-05 | 주식회사 대동 | Apparatus for testing the endurance of Apparatus for Electronic Steering Column Lock |
| KR102127423B1 (en) * | 2018-12-27 | 2020-06-26 | 주식회사 세원정공 | Durability testing method and system for a motor driven power steering mounting part |
| CN111735646A (en) * | 2020-07-13 | 2020-10-02 | 湖北唯思凌科装备制造有限公司 | Clamping driving device of input shaft of automobile steering device |
| CN213933077U (en) * | 2020-11-09 | 2021-08-10 | 宁波拓普集团股份有限公司 | Durable automatic testing arrangement is adjusted with handle to tubular column |
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| Title |
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| 基于整车的转向系统耐久测试研究;李赛;陈泰吉;郑忠辉;;时代汽车(第14期);全文 * |
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| CN113984412A (en) | 2022-01-28 |
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