CN216791602U - Fatigue testing device for steering wheel - Google Patents
Fatigue testing device for steering wheel Download PDFInfo
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- CN216791602U CN216791602U CN202122944175.6U CN202122944175U CN216791602U CN 216791602 U CN216791602 U CN 216791602U CN 202122944175 U CN202122944175 U CN 202122944175U CN 216791602 U CN216791602 U CN 216791602U
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- steering wheel
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- connecting plate
- screw rod
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Abstract
The utility model discloses a fatigue testing device for a steering wheel, which comprises a workbench; a cavity is arranged in the workbench, a reciprocating mechanism is arranged in the cavity, the reciprocating mechanism comprises a reciprocating motor, a reciprocating screw rod, a screw nut, a rack rod and a gear, the output end of the reciprocating motor is connected with the reciprocating screw rod, the screw nut is connected with the reciprocating screw rod in a matching way, the rack rod is fixedly connected with the front side of the screw nut, and the rack rod and the gear are mutually meshed; the gear is fixedly sleeved with a rotating shaft, and the top of the rotating shaft is fixedly connected with a turntable positioning tool; the steering wheel is fixedly installed on the turntable positioning tool; the left side and the right side of the upper surface of the workbench are respectively connected with a positioning mechanism through a fixing frame; the utility model controls the running speed of the reciprocating motor and the linear motor through the PLC control box to ensure that the numerical value of the push-pull force meets the requirement of the test, thereby improving the precision of the test detection and better reflecting the torsional fatigue strength of the steering wheel.
Description
Technical Field
The utility model relates to the technical field of automobile detection equipment, in particular to a steering wheel fatigue testing device.
Background
The automobile becomes a daily required vehicle, and with the continuous gradual improvement of various safety technical levels of the automobile, with the great popularization of the automobile and the increasing requirements of people on the power performance and the mobility performance, various parts of the automobile need to be continuously improved, a steering wheel is the place where a driver contacts most, and the comfort level and the performance of the steering wheel directly influence the driver. At present, the fatigue test of the automobile steering wheel is generally carried out by loading through an air cylinder, the push-pull force of the steering wheel is adjusted by adjusting the air pressure, the air pressure of the air cylinder is unstable, and the control precision of the push-pull force is poor, so that the result error after the test is large, and the actual torsional fatigue strength of the steering wheel cannot be well reflected.
Based on the above situation, the utility model provides a steering wheel fatigue testing device, which can effectively solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a steering wheel fatigue testing device. The steering wheel fatigue testing device provided by the utility model is simple in structure, and the positioning mechanism is arranged on the workbench, and the linear motor of the positioning mechanism is connected with the outer edge of the steering wheel through the dynamometer and the connecting bracket in sequence, so that the turntable positioning tool is kept relatively static; then the reciprocating motor is started, the reciprocating motor can drive the turntable positioning tool to rotate, the turntable positioning tool is just positioned at the moment of rotation through the interaction of the reciprocating motor and the linear motor, the dynamometer can accurately detect the numerical value of the push-pull force of the steering wheel and feeds the numerical value back to the PLC control box in real time, the PLC control box controls the running speed of the reciprocating motor and the linear motor to enable the numerical value of the push-pull force to meet the testing requirement, the testing detection precision is improved, and meanwhile the torsional fatigue strength of the steering wheel is better reflected.
The utility model is realized by the following technical scheme:
a fatigue testing device for a steering wheel comprises a workbench; a cavity is formed in the workbench, a reciprocating mechanism is arranged in the cavity and comprises a reciprocating motor, a reciprocating screw rod, a screw nut, a rack rod and a gear, the output end of the reciprocating motor is connected with the reciprocating screw rod, the screw nut is connected with the reciprocating screw rod in a matched manner, the rack rod is fixedly connected with the front side of the screw nut, and the rack rod and the gear are mutually meshed; the gear is fixedly sleeved with a rotating shaft, and the top of the rotating shaft is fixedly connected with a turntable positioning tool; the steering wheel is fixedly installed on the turntable positioning tool; the left and right sides of the upper surface of the workbench are respectively connected with a positioning mechanism through a fixing frame, the positioning mechanism comprises a linear motor, a dynamometer and a connecting support, the linear motor is connected with the connecting support through the dynamometer, and the connecting support is detachably connected with a steering wheel.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the connecting bracket includes a clamping piece and a connecting piece; the clamping piece comprises a first clamping part and a second clamping part, and two sides of the first clamping part are movably connected with two sides of the second clamping part through bolts; the first clamping part and the second clamping part surround to form a fixing cavity for fixing the steering wheel; the connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate; the first connecting plate is fixedly connected with the upper surface of the first clamping part; the second connecting plate is fixedly connected with the lower surface of the second clamping part; the upper end and the lower end of the third connecting plate are respectively fixedly connected with the first connecting plate and the second connecting plate; and a connecting rod connected with the dynamometer is arranged on the outer side of the third connecting plate.
According to the above technical solution, as a further preferable technical solution of the above technical solution, the inner surface of the fixing cavity is provided with anti-slip stripes.
According to the above technical solution, as a further preferable technical solution of the above technical solution, a mounting groove is provided at the top of the cavity, and the rotating shaft is inserted in the mounting groove.
According to the above technical solution, as a further preferable technical solution of the above technical solution, a PLC control box is further provided on the upper surface of the table, and the PLC control box is electrically connected to the reciprocating motor, the linear motor, and the dynamometer, respectively.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the steering wheel fatigue testing device provided by the utility model is simple in structure, and the positioning mechanism is arranged on the workbench, and the linear motor of the positioning mechanism is connected with the outer edge of the steering wheel through the dynamometer and the connecting bracket in sequence, so that the turntable positioning tool is kept relatively static; then the reciprocating motor is started, the reciprocating motor can drive the turntable positioning tool to rotate, the turntable positioning tool is just positioned at the moment of rotation through the interaction of the reciprocating motor and the linear motor, the dynamometer can accurately detect the numerical value of the push-pull force of the steering wheel and feeds the numerical value back to the PLC control box in real time, the PLC control box controls the running speed of the reciprocating motor and the linear motor to enable the numerical value of the push-pull force to meet the testing requirement, the testing detection precision is improved, and meanwhile the torsional fatigue strength of the steering wheel is better reflected.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural view of a reciprocating mechanism of the present invention;
FIG. 4 is a schematic view of the connecting bracket of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The technical features of the dynamometer and the like described in the present invention are obtained from conventional commercial sources or manufactured by conventional methods, and the specific structure, operation principle, control mode and spatial arrangement mode which may be involved are all conventional and selected in the field, and should not be regarded as the innovation point of the present invention, and it is understood that the present invention is not further specifically described in detail.
Example 1:
a fatigue testing device for a steering wheel comprises a workbench 1; a cavity 2 is arranged in the workbench 1, a reciprocating mechanism is arranged in the cavity 2, the reciprocating mechanism comprises a reciprocating motor 3, a reciprocating screw rod 4, a screw rod nut 5, a rack rod 6 and a gear 7, the output end of the reciprocating motor 3 is connected with the reciprocating screw rod 4, the screw rod nut 5 is connected with the reciprocating screw rod 4 in a matching manner, the rack rod 6 is fixedly connected with the front side of the screw rod nut 5, and the rack rod 6 is meshed with the gear 7; the gear 7 is fixedly sleeved with a rotating shaft 8, and the top of the rotating shaft 8 is fixedly connected with a turntable positioning tool 9; the steering wheel 10 is fixedly installed on the turntable positioning tool 9; the left and right sides of the upper surface of the workbench 1 are connected with a positioning mechanism through a fixing frame 11 respectively, the positioning mechanism comprises a linear motor 12, a dynamometer 13 and a connecting support 14, the linear motor 12 is connected with the connecting support 14 through the dynamometer 13, and the connecting support 14 is detachably connected with a steering wheel 10.
Example 2:
a fatigue testing device for a steering wheel comprises a workbench 1; a cavity 2 is arranged in the workbench 1, a reciprocating mechanism is arranged in the cavity 2, the reciprocating mechanism comprises a reciprocating motor 3, a reciprocating screw rod 4, a screw rod nut 5, a rack rod 6 and a gear 7, the output end of the reciprocating motor 3 is connected with the reciprocating screw rod 4, the screw rod nut 5 is connected with the reciprocating screw rod 4 in a matching manner, the rack rod 6 is fixedly connected with the front side of the screw rod nut 5, and the rack rod 6 is meshed with the gear 7; the gear 7 is fixedly sleeved with a rotating shaft 8, and the top of the rotating shaft 8 is fixedly connected with a turntable positioning tool 9; the steering wheel 10 is fixedly installed on the turntable positioning tool 9; the left and right sides of the upper surface of the workbench 1 are connected with a positioning mechanism through a fixing frame 11 respectively, the positioning mechanism comprises a linear motor 12, a dynamometer 13 and a connecting support 14, the linear motor 12 is connected with the connecting support 14 through the dynamometer 13, and the connecting support 14 is detachably connected with a steering wheel 10.
According to the utility model, the positioning mechanism is arranged on the workbench 1, and the linear motor 12 of the positioning mechanism is connected with the outer edge of the steering wheel 10 sequentially through the dynamometer 13 and the connecting bracket 14, so that the turntable positioning tool 9 is kept relatively static; then the reciprocating motor 3 is started, the reciprocating motor 3 can drive the turntable positioning tool 9 to rotate, the turntable positioning tool 9 is just positioned at the moment of rotation through the interaction of the reciprocating motor 3 and the linear motor 12, the dynamometer 13 can accurately detect the numerical value of the push-pull force of the steering wheel and feed the numerical value back to the PLC control box 16 in real time, the PLC control box controls the running speed of the reciprocating motor 3 and the linear motor 12 to enable the numerical value of the push-pull force to meet the testing requirement, the testing precision is improved, and meanwhile the torsional fatigue strength of the steering wheel 10 is better reflected.
The utility model can measure the rotating fatigue strength of the steering wheel 10 in different rotating directions by arranging the reciprocating motor 3 and the reciprocating screw rod 4.
Further, in another embodiment, the connecting bracket 14 includes a clamping member 141 and a connecting member 142; the clamping piece 141 comprises a first clamping part 1411 and a second clamping part 1412, and two sides of the first clamping part 1411 are movably connected with two sides of the second clamping part 1412 through bolts; the first clamping portion 1411 and the second clamping portion 1412 surround to form a fixing cavity 1413 for fixing the steering wheel 10; the inner surface of the fixing cavity 1413 is provided with anti-slip stripes 1414. The connector 142 includes a first connecting plate 1421, a second connecting plate 1422, and a third connecting plate 1423; the first connecting plate 1421 is fixedly connected to the upper surface of the first clamping portion 1411; the second connecting plate 1422 is fixedly connected to the lower surface of the second clamping portion 1412; the upper end and the lower end of the third connecting plate 1423 are respectively fixedly connected with the first connecting plate 1421 and the second connecting plate 1422; the outer side of the third connecting plate 1423 is provided with a connecting rod 1424 connected with the dynamometer 13.
Through adopting above-mentioned technical scheme, increased linking bridge 14's clamp force, the slip appears when preventing to test, reduces the measuring error.
Further, in another embodiment, the top of the cavity 2 is provided with a mounting groove 15, and the rotating shaft 8 is inserted into the mounting groove 15.
Further, in another embodiment, the upper surface of the table 1 is further provided with a PLC control box 16, and the PLC control box 16 is electrically connected to the reciprocating motor 3, the linear motor 12 and the load cell 13, respectively.
According to the description and the drawings of the utility model, a person skilled in the art can easily manufacture or use a steering wheel fatigue testing device of the utility model and can produce the positive effects recorded in the utility model.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (5)
1. A steering wheel fatigue test device which characterized in that: comprises a workbench (1); a cavity (2) is formed in the workbench (1), a reciprocating mechanism is arranged in the cavity (2), the reciprocating mechanism comprises a reciprocating motor (3), a reciprocating screw rod (4), a screw rod nut (5), a rack rod (6) and a gear (7), the output end of the reciprocating motor (3) is connected with the reciprocating screw rod (4), the screw rod nut (5) is connected with the reciprocating screw rod (4) in a matched mode, the rack rod (6) is fixedly connected with the front side of the screw rod nut (5), and the rack rod (6) is meshed with the gear (7); the gear (7) is fixedly sleeved with a rotating shaft (8), and the top of the rotating shaft (8) is fixedly connected with a turntable positioning tool (9); the steering wheel (10) is fixedly arranged on the turntable positioning tool (9); the left and right sides of the upper surface of workstation (1) is connected with positioning mechanism through mount (11) respectively, positioning mechanism includes linear electric motor (12), dynamometer (13) and linking bridge (14), linear electric motor (12) link to each other with linking bridge (14) through dynamometer (13), linking bridge (14) can be dismantled with steering wheel (10) and link to each other.
2. A steering wheel fatigue testing device according to claim 1, wherein: the connecting bracket (14) comprises a clamping piece (141) and a connecting piece (142); the clamping piece (141) comprises a first clamping part (1411) and a second clamping part (1412), and two sides of the first clamping part (1411) are movably connected with two sides of the second clamping part (1412) through bolts; the first clamping part (1411) and the second clamping part (1412) surround to form a fixing cavity (1413) for fixing the steering wheel (10); the connecting piece (142) comprises a first connecting plate (1421), a second connecting plate (1422) and a third connecting plate (1423); the first connecting plate (1421) is fixedly connected with the upper surface of the first clamping part (1411); the second connecting plate (1422) is fixedly connected with the lower surface of the second clamping part (1412); the upper end and the lower end of the third connecting plate (1423) are respectively fixedly connected with the first connecting plate (1421) and the second connecting plate (1422); and a connecting rod (1424) connected with the dynamometer (13) is arranged on the outer side of the third connecting plate (1423).
3. A steering wheel fatigue testing device according to claim 2, wherein: the inner surface of the fixing cavity (1413) is provided with anti-slip stripes (1414).
4. A steering wheel fatigue testing device according to claim 1, wherein: the top of cavity (2) is provided with mounting groove (15), pivot (8) are inserted and are established in mounting groove (15).
5. A steering wheel fatigue testing device according to claim 1, wherein: the upper surface of workstation (1) still is provided with PLC control box (16), PLC control box (16) are connected with reciprocating motor (3), linear electric motor (12) and dynamometer (13) electricity respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122944175.6U CN216791602U (en) | 2021-11-25 | 2021-11-25 | Fatigue testing device for steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122944175.6U CN216791602U (en) | 2021-11-25 | 2021-11-25 | Fatigue testing device for steering wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216791602U true CN216791602U (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122944175.6U Active CN216791602U (en) | 2021-11-25 | 2021-11-25 | Fatigue testing device for steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216791602U (en) |
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2021
- 2021-11-25 CN CN202122944175.6U patent/CN216791602U/en active Active
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