CN214408056U - Steering wheel fatigue test bench - Google Patents
Steering wheel fatigue test bench Download PDFInfo
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- CN214408056U CN214408056U CN202120547710.1U CN202120547710U CN214408056U CN 214408056 U CN214408056 U CN 214408056U CN 202120547710 U CN202120547710 U CN 202120547710U CN 214408056 U CN214408056 U CN 214408056U
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- steering wheel
- driving piece
- air inlet
- fatigue test
- driving member
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Abstract
The utility model discloses a steering wheel fatigue test stand, relating to the field of vehicle steering wheel detection, comprising a supporting table surface for placing a simulated steering wheel device and a simulated horn device, the simulated steering wheel device comprises a first driving piece and a rotating piece driven by the first driving piece to drive the steering wheel to rotate, the simulated horn device comprises a second driving piece for realizing the action of pressing a horn on a steering wheel and a horn switch, the first driving piece and the second driving piece are both connected with the PLC control device, the utility model has simple structure, through the rotation of simulation steering wheel and the working method of simulation steering wheel correspondence position department loudspeaker, can test the durability of steering wheel rotation and the wearability of the loudspeaker switch of steering wheel simultaneously, this device simple structure, operation are stable, the testing process easily monitors and the experimental result can carry out the judgement directly perceived.
Description
Technical Field
The utility model relates to a vehicle steering wheel detection area specifically is a steering wheel fatigue test platform.
Background
Steering wheels are widely used in various motor vehicles as an important component of a steering system. In the industry, functions of horn button switches are almost integrated on forklift steering wheels, and faults of forklift steering wheel assemblies are mainly divided into two types under normal conditions, wherein one type is bearing abrasion in a steering column; the other is failure of horn switch at the top of steering wheel; where the probability of the horn beginning to fail is high. The reason for this analysis is that the horn switch will fail over time due to wear of the horn switch conductive posts caused by the steering wheel turning.
Before the steering wheel is put into use in a vehicle, the improved and optimized steering wheel assembly needs to be tested by a durability test bed to ensure the improved effectiveness, but the test bed cannot be purchased at the present stage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steering wheel fatigue test platform, the rotation and the simulation steering wheel through simulation steering wheel correspond the working method of position department loudspeaker, test the durability of steering wheel to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a steering wheel fatigue test platform, is including the support mesa that is used for placing simulation steering wheel device and simulation loudspeaker device, simulation steering wheel device includes first driving piece and receives first driving piece to order about and drive steering wheel pivoted rotating member, simulation loudspeaker device is including realizing pressing second driving piece and the loudspeaker switch of loudspeaker action on the steering wheel, first driving piece all links to each other with PLC controlling means with the second driving piece.
As a further aspect of the present invention: the output end of the first driving piece is fixedly connected with a rack, and one end, penetrating through a steering wheel fixing pipe column, of a steering wheel in the simulation steering wheel device is fixedly connected with a gear matched with the rack.
As a further aspect of the present invention: the first driving piece is fixedly connected with the supporting table board through a bolt, and a first air inlet and a second air inlet are respectively formed in the two ends of the first driving piece.
As a further aspect of the present invention: and the supporting table top is fixedly connected with a supporting roller for placing the rack.
As a further aspect of the present invention: the interface of the horn switch is two wires, and the two wires of the interface of the horn switch are connected in series with a loudspeaker and a storage battery to form an electric loop of the horn system.
As a further aspect of the present invention: the second driving piece is fixed with the supporting table board through a second driving piece support, and a third air inlet and a fourth air inlet are formed in two ends of the second driving piece respectively.
As a further aspect of the present invention: the PLC control system is connected with the first driving part through a first electromagnetic directional valve, the first electromagnetic directional valve is communicated with the first air inlet and the second air inlet of the first driving part through two air pipes respectively, the PLC control system is connected with the second driving part through a second electromagnetic directional valve, and the second electromagnetic directional valve is communicated with the third air inlet and the fourth air inlet of the second driving part through two air pipes respectively.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses novel structure, through the rotation of simulation steering wheel and the working method that simulation steering wheel corresponds position department loudspeaker, can test the durability of the rotatory durability of steering wheel and the wearability of the loudspeaker switch of steering wheel simultaneously, this device simple structure, operation are stable, the test process easily monitors and the experimental result can carry out the judgement directly perceived.
Drawings
FIG. 1 is a schematic view of an overall structure of a steering wheel fatigue test stand;
in the figure: 1-supporting table top, 2-long cylinder, 3-bolt, 4-supporting roller, 5-rack, 6-second driving piece support, 7-steering wheel support, 8-gear, 9-steering wheel fixing column, 10-horn switch, 11-short cylinder, 121-first electromagnetic directional valve, 122-second electromagnetic directional valve, 13-air pipe, 14-electric wire, 15-air tee joint, 16-PLC control device, 17-steering wheel assembly, 18-loudspeaker, 19-battery jar, 20-horn switch interface and 21-rotating shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a steering wheel fatigue test bed includes a supporting table 1 for placing a simulated steering wheel device and a simulated horn device; the simulation steering wheel device comprises a first driving piece, a rotating piece driven by the first driving piece to drive steering wheel rotation, the simulation horn device comprises a second driving piece and a horn switch interface which realize horn action on the pressing steering wheel, and the first driving piece and the second driving piece are all connected with the PLC.
Can drive steering wheel simulated rotation through first driving piece, can drive the loudspeaker on the pressing steering wheel through the second driving piece, first driving piece passes through a PLC system synchro control with the second driving piece simultaneously, can make steering wheel and steering wheel loudspeaker open the simulation in step, through the simulation test of a certain length of time, can draw the relation between steering wheel rotation and the wearing and tearing of steering wheel loudspeaker to can further verify the validity after steering wheel and steering wheel loudspeaker improve.
Simulation steering wheel device includes the rotating member, first driving piece can be for but not only be limited to long cylinder, the rotating member includes rack 5, the fixed tubular column of steering wheel that link to each other with long cylinder and the gear that matches each other with the rack, the concertina movement of long cylinder can drive the lateral shifting of rack, the steering wheel passes through fixed tubular column 9 of steering wheel and can makes its and support mesa rotate relatively, fixed tubular column of steering wheel passes through the steering wheel support to be fixed on supporting mesa 1, the one end that the steering wheel passed fixed tubular column of steering wheel is fixed with the gear with rack assorted, and the removal of straight line through the rack can drive the rotation of gear for the steering wheel can rotate along with the gear, thereby realizes the simulation rotation of steering wheel.
The long cylinder passes through the bolt and links to each other with the support mesa is fixed, there are first air inlet P1 and second air inlet P2 respectively at long cylinder both ends, fixedly connected with is used for placing the supporting roller of rack on the support mesa, under supporting roller's effect, can make the rack flush with the output of cylinder on the one hand, and on the other hand can prevent the bending that rack length overlength produced.
The simulation horn device includes second driving piece and horn switch, the second driving piece can drive the horn switch on the steering wheel and press, the second driving piece can be for but not only be limited to short cylinder, there are third air inlet P3 and fourth air inlet P4 respectively at short cylinder both ends, the second driving piece passes through support 6 to be fixed it on supporting the mesa, can prescribe a limit to the position of short cylinder simultaneously, makes the output of short cylinder be at the in-process of doing concertina movement, can press the horn switch. The interface of the horn switch in the simulation horn device is two electric wires, and two electric wires are off state under the vehicle normal use state, and when the horn switch was pressed, two electric wires switched on, whole car horn system can form the return circuit to the effect of loudspeaker is opened in the realization.
Two interfaces of the horn switch are respectively connected with the loudspeaker 18 and the storage battery 19 in series, so that the horn switch can simulate an electric loop of a whole vehicle horn system, and a certain gap is reserved between the short cylinder and the horn switch in a free state, so that the short cylinder and the horn switch are not in contact with each other in a non-working state.
The long cylinder and the short cylinder are respectively connected with two electromagnetic directional valves 12 through air pipes 13, the two electromagnetic directional valves are respectively connected with a three-way joint 15 for air through air pipes, the two electromagnetic directional valves are connected through a PDLC control system and can introduce compressed air P into an inlet of the three-way joint, and the compressed air is respectively introduced into P1/P2/P3/P4 correspondingly according to experimental requirements, so that the compressed air is used as the operation power of the long cylinder and the short cylinder. The two electromagnetic directional valves are connected with a PLC control system through a conducting wire 14, and the control system is externally connected with a power supply, so that the PLC control system can respectively control the long cylinder and the short cylinder by controlling the two electromagnetic directional valves.
As shown in fig. 1, when the test is started, the compressed air enters the port P1 of the long cylinder through the three-way connection for air and the first electromagnetic directional valve 121 under the control of the PLC, at this time, the compressed air pushes out the piston rod of the cylinder, the piston rod drives the rack to move together, the rack converts the linear motion into the rotational motion of the pinion, and thus the rotation of the steering wheel assembly and the horn switch is realized. When the long cylinder moves in place, the PLC controls compressed air to enter from a P2 port of the long cylinder, and the rack is retracted to realize the reverse rotation movement of the steering wheel assembly. PLC still respectively with the P3 mouth and the P4 mouth of the short cylinder of compressed air alternating input respectively through controlling second solenoid directional valve 122 simultaneously, when compressed air got into P3 mouth, thereby the short cylinder can stretch out the piston rod and can stretch out and withstand the horn switch and simulate operating personnel and press the action of loudspeaker, when the horn switch was pressed, the circuit of horn system will form the return circuit, the storage battery will provide the electric energy for the speaker and pursue the realization speaker and whistle. Each time the speaker whistles, it indicates that the horn switch of the steering wheel assembly is normal, and when the speaker does not whistling, it indicates that the horn switch has failed. In addition, the working frequency of the long and short cylinders can be adjusted according to actual needs through the control of the PLC, so that the long and short cylinders can perform combined action.
In conclusion, whether the rotation function and the horn switch function of the steering wheel assembly fail or not can be checked through a fatigue test for a period of time, and whether the reliability meets the use requirement or not is further judged.
The utility model discloses novel structure, the operation is stable, the utility model discloses when using, through the rotation of simulation steering wheel and the working method that simulation steering wheel corresponds position department loudspeaker, can test the durability of the rotatory durability of steering wheel and the wearability of the loudspeaker switch of steering wheel simultaneously, this device simple structure, operation are stable, the test process easily monitors and the experimental result can carry out visual judgement.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a steering wheel fatigue test platform, its characterized in that, is including the support mesa that is used for placing simulation steering wheel device and simulation loudspeaker device, simulation steering wheel device includes first driving piece and receives first driving piece to order about and drive steering wheel pivoted rotating member, simulation loudspeaker device is including second driving piece and the loudspeaker switch of realizing pressing the horn action on the steering wheel, first driving piece all links to each other with PLC controlling means with the second driving piece.
2. The steering wheel fatigue test bed according to claim 1, wherein a rack is fixedly connected to the output end of the first driving member, and a gear matched with the rack is fixedly connected to one end, penetrating through a steering wheel fixing pipe column, of the steering wheel in the simulated steering wheel device.
3. The steering wheel fatigue test stand of claim 1, wherein the first driving member is fixedly connected with the support table surface through a bolt, and a first air inlet and a second air inlet are respectively formed at two ends of the first driving member.
4. The steering wheel fatigue test stand of claim 2, wherein a support roller for placing a rack is fixedly connected to the support table.
5. The steering wheel fatigue test bed of claim 1, wherein the horn switch interface is two wires, and the two wires of the horn switch interface are connected in series with a speaker and a battery to form an electrical loop of a horn system.
6. The steering wheel fatigue test stand of claim 1, wherein the second driving member is fixed to the support table surface through a second driving member bracket, and a third air inlet and a fourth air inlet are respectively formed at two ends of the second driving member.
7. The steering wheel fatigue test bench of claim 3 or 6, wherein the PLC control system is connected to the first driving member through a first electromagnetic directional valve, the first electromagnetic directional valve is respectively communicated with the first air inlet and the second air inlet of the first driving member through two air pipes, the PLC control system is connected to the second driving member through a second electromagnetic directional valve, and the second electromagnetic directional valve is respectively communicated with the third air inlet and the fourth air inlet of the second driving member through two air pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120547710.1U CN214408056U (en) | 2021-03-16 | 2021-03-16 | Steering wheel fatigue test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120547710.1U CN214408056U (en) | 2021-03-16 | 2021-03-16 | Steering wheel fatigue test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214408056U true CN214408056U (en) | 2021-10-15 |
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ID=78030259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120547710.1U Active CN214408056U (en) | 2021-03-16 | 2021-03-16 | Steering wheel fatigue test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214408056U (en) |
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2021
- 2021-03-16 CN CN202120547710.1U patent/CN214408056U/en active Active
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