CN220525341U - Multi-degree-of-freedom rotary driving mechanism for steering pipe column - Google Patents
Multi-degree-of-freedom rotary driving mechanism for steering pipe column Download PDFInfo
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- CN220525341U CN220525341U CN202322194694.4U CN202322194694U CN220525341U CN 220525341 U CN220525341 U CN 220525341U CN 202322194694 U CN202322194694 U CN 202322194694U CN 220525341 U CN220525341 U CN 220525341U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 49
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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Abstract
The utility model relates to a multi-degree-of-freedom rotary driving mechanism of a steering column, which comprises a base, wherein the upper surface of the base is provided with a sliding seat in sliding fit with the base, the sliding seat is connected with a linear driving mechanism for driving the sliding seat to slide, a support is fixedly arranged on the sliding seat, a rotating table is arranged above the sliding seat, the side wall of the rotating table is rotatably arranged on the support through a rotating shaft, and the rotating shaft is connected with a rotary driving mechanism; and a test driving assembly is arranged on the rotating table. The driving mechanism of the utility model is flexible in use, and can provide power for steering columns at a plurality of positions and angles so as to complete a plurality of tests.
Description
Technical Field
The utility model belongs to the field of steering gear detection equipment, and particularly relates to a steering pipe column multi-degree-of-freedom rotary driving mechanism.
Background
The steering column is a component for connecting the steering wheel and the steering gear, and after the processing is finished, a plurality of tests are required to be carried out to ensure the stability of the performance and ensure the safe control of the vehicle. During testing, one end of the pipe column, which rotates, is connected with the driving mechanism, the other end of the pipe column is connected with the loading mechanism, the driving mechanism is used for driving the pipe column to rotate, and the loading mechanism is used for simulating load. For example, CN101806659B discloses a durability test stand for a spindle of an automotive steering column, which adopts a magnetic coupling type rodless cylinder as a driving mechanism, and the magnetic coupling type rodless cylinder is connected with the steering column through a stay wire, a supporting wheel and a pulley and is used for driving the steering column to rotate. In this driving mechanism, the magnetic coupling type rodless cylinder, the supporting wheel, the pulley and the like are fixedly installed, and when the angle of the steering column is changed, the driving mechanism cannot be used any more. CN217687881U discloses a universal test device for steering columns with multiple degrees of freedom adjustment, which can realize multiple degrees of freedom adjustment such as transverse, longitudinal, vertical, angle, etc., and can adjust the angle of the axis of the column relative to the horizontal plane to meet the real vehicle assembly state, and is suitable for testing the performance, strength and durability of steering columns in various environments, but can only position the steering columns, and does not provide a matched driving mechanism.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a steering column multi-degree-of-freedom rotary driving mechanism which can provide power for steering columns at multiple positions and multiple angles so as to complete various tests.
In order to solve the problems, the utility model adopts the following technical scheme: the multi-degree-of-freedom rotary driving mechanism of the steering column comprises a base, wherein the upper surface of the base is provided with a sliding seat in sliding fit with the base, the sliding seat is connected with a linear driving mechanism for driving the sliding seat to slide, a support is fixedly arranged on the sliding seat, a rotating table is arranged above the sliding seat, the side wall of the rotating table is rotatably arranged on the support through a rotating shaft, and the rotating shaft is connected with a rotary driving mechanism; and a test driving assembly is arranged on the rotating table.
Further, the test driving assembly comprises a driving motor, a speed reducer, a coupler and an output flange which are sequentially connected.
Further, the rotating table is fixedly provided with a mounting frame, and the driving motor, the speed reducer, the coupler and the output flange are mounted on the mounting frame.
Further, a torque sensor is arranged between the speed reducer and the coupler.
Further, a pair of guide rails is arranged on the upper surface of the base, and a sliding block is arranged at the bottom of the sliding seat and is in sliding fit with the guide rails.
Further, the linear driving mechanism comprises a linear driving motor, a spindle of the linear driving motor is connected with a screw rod, and the screw rod is in threaded fit with the sliding seat.
Further, the rotating table comprises a supporting seat and a rotary table, the rotating shaft is arranged on the side wall of the supporting seat, and the test driving assembly is arranged on the rotary table.
Further, the rotation driving mechanism comprises a driving shaft, the driving shaft is mounted on the supporting seat through a bearing, a driving wheel is arranged on the driving shaft, a driven wheel is arranged on the rotating shaft, and the driving wheel is connected with the driven wheel through a belt.
Further, a rotating disc is arranged on the driving shaft, and a rotating handle is arranged at the edge of the rotating disc.
The beneficial effects of the utility model are as follows: the test driving assembly is used for being directly connected with the steering column to drive the steering column to rotate, and test power is provided. The rotating driving mechanism can drive the rotating table to rotate, so that the angle of the test driving assembly is adjusted to adapt to steering columns with various angles. In addition, the linear driving mechanism can drive the sliding seat, the rotating table and the test driving assembly to move linearly integrally so as to adapt to steering columns in various positions. Therefore, the driving mechanism of the utility model is flexible to use, and can provide power for steering columns at a plurality of positions and angles so as to complete a plurality of tests.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is a schematic front view of the present utility model;
FIG. 4 is a schematic side view of the present utility model;
reference numerals: 1-a base; 2-a slide seat; 3-a bracket; 4-a rotating table; 5-a rotating shaft; 6-driving a motor; 7-a speed reducer; 8-a shaft coupling; 9-an output flange; 10-mounting frame; 11-a torque sensor; 12, a guide rail; 13-a slider; 14-a linear drive motor; 15-a screw rod; 16-a driving shaft; 17-a driving wheel; 18-driven wheel; 19-a supporting seat; 20-a rotary table; 21-a rotating disc; 22-turning the handle.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
The utility model relates to a multi-degree-of-freedom rotary driving mechanism of a steering column, which is shown in fig. 1 to 4, and comprises a base 1, wherein the upper surface of the base 1 is provided with a sliding seat 2 which is in sliding fit with the base 1, the sliding seat 2 is connected with a linear driving mechanism for driving the sliding seat 2 to slide, a bracket 3 is fixedly arranged on the sliding seat 2, a rotating table 4 is arranged above the sliding seat 2, the side wall of the rotating table 4 is rotatably arranged on the bracket 3 through a rotating shaft 5, and the rotating shaft 5 is connected with a rotary driving mechanism; the rotating table 4 is provided with a test driving assembly.
The base 1 is made of a metal plate, such as a cast iron plate, a steel plate and the like, and a plurality of through holes are formed in the plate, so that the base 1 can be fixed on a test platform by bolts during a test, and the base 1 is kept fixed. The base 1 is rectangular, and the slide 2 can slide along the length direction of the base 1, so that the position of the test driving assembly is adjusted. The rotating table 4 is provided with a side surface and two end surfaces, the rotating shaft 5 is horizontally fixed on the side surface of the rotating table 4, the rotating shaft 5 can rotate around the central line of the rotating table 4 under the driving of the rotating driving mechanism, at the moment, the rotating shaft 5 drives the rotating table 4 to rotate, and the rotating driving mechanism synchronously rotates along with the rotating table 4, so that the angle between the rotating driving mechanism and the horizontal surface is adjusted.
The test driving assembly is used for driving the steering column to rotate, and can adopt a mechanism formed by the existing magnetic coupling type rodless cylinder, pulleys and other parts, and preferably comprises a driving motor 6, a speed reducer 7, a coupler 8 and an output flange 9 which are sequentially connected. The driving motor 6 adopts a servo motor, so that the rotation angle can be accurately controlled. The output flange 9 can be connected with the steering column through a plurality of bolts, and the rotation motion output by the driving motor 6 is transmitted to the steering column through the coupler 8 and the output flange 9 after being decelerated by the speed reducer 7, so that the steering column rotates according to a certain rotation speed.
In order to facilitate the installation of the test driving assembly, the rotating table 4 is fixedly provided with a mounting frame 10, and the driving motor 6, the speed reducer 7, the coupling 8 and the output flange 9 are mounted on the mounting frame 10. Specifically, the mounting frame 10 has a plurality of columns enclosing a rectangular frame, and mounting plates are provided at both ends of the frame. The speed reducer 7 is fixed on the mounting plate at one end of the frame, the output flange 9 comprises a disc body and a connecting shaft which are integrally formed, the connecting shaft is mounted on the mounting plate at the other end of the frame through a bearing, and the end part of the connecting shaft is connected with the coupler 8.
In order to facilitate control of the torque output by the drive motor 6, a torque sensor 11 is arranged between the speed reducer 7 and the coupling 8. The torque sensor 11 is installed inside the frame by adopting the prior art, an input shaft of the torque sensor 11 is connected with an output shaft of the speed reducer 7, and an output shaft of the torque sensor 11 is connected with the coupler 8. During the test, the torque sensor 11 can detect the torque output by the driving motor 6 to the steering column in real time, and the torque of the driving motor 6 is regulated in real time according to the detection result, so that the closed-loop control of the torque is realized, and the torque received by the steering column is ensured to be consistent with the test requirement.
In order to ensure stable movement of the slide 2 on the base 1, the upper surface of the base 1 is provided with a pair of rails 12, the bottom of the slide 2 is provided with a slider 13, and the slider 13 is in sliding fit with the rails 12. The two guide rails 12 are fixed on the upper surface of the base 1 through a plurality of screws, and the two guide rails 12 are parallel to each other. The cross section of the guide rail 12 is I-shaped, the lower part of the sliding block 13 is provided with a sliding groove, the shape of the sliding groove is matched with that of the guide rail 12, and the inner wall of the sliding groove is attached to the outer wall of the guide rail 12.
The linear driving mechanism can be a hydraulic cylinder and the like, and preferably comprises a linear driving motor 14, a spindle of the linear driving motor 14 is connected with a screw rod 15, and the screw rod 15 is in threaded fit with the sliding seat 2. The base 1 is provided with a pair of supports, and both ends of the screw 15 are mounted to the supports through bearings.
In order to realize the bidirectional rotation of the test driving assembly, the rotating table 4 comprises a supporting seat 19 and a rotating table 20, the rotating shaft 5 is arranged on the side wall of the supporting seat 19, and the test driving assembly is arranged on the rotating table 20. The rotary table 20 is disc-shaped and is arranged on the upper surface of the supporting seat 19, and the rotary table 20 can rotate around the center line of the rotary table 20 so as to drive the test driving assembly to rotate. The center line of the rotary table 20 is used as a z axis, the center line of the rotary shaft 5 is used as an x axis, the z axis and the x axis are mutually perpendicular, when the rotary shaft 5 rotates, the supporting seat 19, the rotary table 20 and the test driving assembly integrally rotate around the x axis, and when the rotary table 20 rotates, the test driving assembly is driven to rotate around the z axis, so that bidirectional rotation of the test driving assembly is realized, and the use flexibility is further improved.
The supporting seat 19 and the rotary table 20 can adopt the existing double-shaft rotary table, the rotary driving mechanism can adopt a servo motor with a speed reducer, and for the sake of simplifying the equipment structure, the rotary driving mechanism comprises a driving shaft 16, the driving shaft 16 is arranged on the supporting seat 19 through a bearing, the driving shaft 16 can rotate around the center line of the driving shaft 16, a driving wheel 17 is arranged on the driving shaft 16, a driven wheel 18 is arranged on the rotary shaft 5, and the driving wheel 17 is connected with the driven wheel 18 through a belt. The driving shaft 16 is provided with a rotary disk 21, and the edge of the rotary disk 21 is provided with a rotary handle 22. The rotating handle 22 is rotated to drive the rotating disc 21 to rotate, the rotating disc 21 drives the driving shaft 16 to rotate, the driving wheel 17 synchronously rotates along with the driving shaft 16, the driven wheel 18 is driven to rotate through a belt, and the driven wheel 18 drives the rotating shaft 5 to rotate. By adopting a manual adjustment mode, power components such as a motor and the like are omitted, the equipment cost and the operation cost are reduced, and the control program is simplified.
The turntable 20 can be specifically hydraulic or motor as rotation power, or can be manually driven, specifically, the turntable 20 is rotatably installed on the supporting seat 19, the outer wall of the turntable 20 is fixedly provided with a turbine, the supporting seat 19 is provided with a worm, the worm is engaged with the turbine, one end of the worm is provided with an operation handle, the worm is driven to rotate by using the operation handle, the worm can drive the turbine to rotate, and then the turntable 20 is driven to rotate.
The application process of the utility model is as follows:
the utility model is integrally fixed on a test platform, a tested steering column is firstly arranged on a positioning mechanism, so that the position of the steering column is kept stable, then the positions of a sliding seat 2 and an output flange 9 are adjusted according to the position of the steering column, a supporting seat 19 and a rotary table 20 are rotated, the position of the output flange 9 is further adjusted, the output flange 9 is aligned to the steering column, and then the steering column is connected with the output flange 9 by bolts, so that the test can be performed.
In the utility model, the test driving assembly can not only move linearly, but also rotate around the z axis and the x axis, the position adjustment is flexible, and the test driving assembly can be used as a driving mechanism of the steering column when various tests are carried out on the steering column.
In addition, the present utility model can also be used as a load to simulate the load applied to the steering column.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. Steering column multi freedom rotary driving mechanism, its characterized in that: the sliding seat comprises a base (1), wherein the upper surface of the base (1) is provided with a sliding seat (2) which is in sliding fit with the base (1), the sliding seat (2) is connected with a linear driving mechanism for driving the sliding seat (2) to slide, a support (3) is fixedly arranged on the sliding seat (2), a rotating table (4) is arranged above the sliding seat (2), the side wall of the rotating table (4) is rotatably arranged on the support (3) through a rotating shaft (5), and the rotating shaft (5) is connected with a rotating driving mechanism; and a test driving assembly is arranged on the rotating table (4).
2. The steering column multi-degree of freedom rotary drive mechanism of claim 1 wherein: the test driving assembly comprises a driving motor (6), a speed reducer (7), a coupler (8) and an output flange (9) which are sequentially connected.
3. A steering column multi-degree of freedom rotary drive mechanism according to claim 2 wherein: the rotary table (4) is fixedly provided with a mounting frame (10), and the driving motor (6), the speed reducer (7), the coupler (8) and the output flange (9) are mounted on the mounting frame (10).
4. A steering column multi-degree of freedom rotary drive mechanism according to claim 2 wherein: a torque sensor (11) is arranged between the speed reducer (7) and the coupler (8).
5. The steering column multi-degree of freedom rotary drive mechanism of claim 1 wherein: the upper surface of the base (1) is provided with a pair of guide rails (12), the bottom of the sliding seat (2) is provided with a sliding block (13), and the sliding block (13) is in sliding fit with the guide rails (12).
6. A steering column multi-degree of freedom rotary drive mechanism according to claim 1 or claim 5 wherein: the linear driving mechanism comprises a linear driving motor (14), a spindle of the linear driving motor (14) is connected with a screw rod (15), and the screw rod (15) is in threaded fit with the sliding seat (2).
7. The steering column multi-degree of freedom rotary drive mechanism of claim 1 wherein: the rotating table (4) comprises a supporting seat (19) and a rotary table (20), the rotating shaft (5) is arranged on the side wall of the supporting seat (19), and the test driving assembly is arranged on the rotary table (20).
8. The steering column multi-degree of freedom rotary drive mechanism of claim 7, wherein: the rotary driving mechanism comprises a driving shaft (16), the driving shaft (16) is mounted on a supporting seat (19) through a bearing, a driving wheel (17) is arranged on the driving shaft (16), a driven wheel (18) is arranged on the rotating shaft (5), and the driving wheel (17) is connected with the driven wheel (18) through a belt.
9. The steering column multi-degree of freedom rotary drive mechanism of claim 8, wherein: a rotating disc (21) is arranged on the driving shaft (16), and a rotating handle (22) is arranged at the edge of the rotating disc (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322194694.4U CN220525341U (en) | 2023-08-15 | 2023-08-15 | Multi-degree-of-freedom rotary driving mechanism for steering pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322194694.4U CN220525341U (en) | 2023-08-15 | 2023-08-15 | Multi-degree-of-freedom rotary driving mechanism for steering pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220525341U true CN220525341U (en) | 2024-02-23 |
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ID=89926465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322194694.4U Active CN220525341U (en) | 2023-08-15 | 2023-08-15 | Multi-degree-of-freedom rotary driving mechanism for steering pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220525341U (en) |
-
2023
- 2023-08-15 CN CN202322194694.4U patent/CN220525341U/en active Active
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