CN211234987U - Be used for steering wheel vibration sensitivity testing arrangement - Google Patents
Be used for steering wheel vibration sensitivity testing arrangement Download PDFInfo
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- CN211234987U CN211234987U CN201921937995.9U CN201921937995U CN211234987U CN 211234987 U CN211234987 U CN 211234987U CN 201921937995 U CN201921937995 U CN 201921937995U CN 211234987 U CN211234987 U CN 211234987U
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Abstract
The utility model discloses a be used for steering wheel vibration sensitivity testing arrangement, it include the mount pad, peg graft in under the mount pad on the terminal surface and with the mount pad encloses to close and forms closed-loop check lock lever, be used for retaining member, sensor with check lock lever and mount pad looks fixed connection, the up end of mount pad is for having partial planform at least, sensor fixed mounting in on the planform. The joint position of the testing device and the steering wheel is arc-shaped, so that the joint area is large, and the mounting strength is increased; the testing devices are all connected through bolts, so that the connection is firm and reliable, the test result is prevented from being influenced, and the steering wheel cannot be polluted during testing; the testing device can ensure that the sensor is installed in parallel to the horizontal direction, and the testing precision is ensured.
Description
Technical Field
The utility model relates to a be used for steering wheel vibration sensitivity testing arrangement.
Background
In the development process of vehicle vibration Noise (NVH) performance, the vibration level of a steering wheel under the excitation of a power assembly and road load is an important NVH performance index. An important test for controlling the vibration level of the steering wheel is the Vibration Transfer Function (VTF), which is measured by exciting a force hammer at a suspension or chassis mounting point, mounting an acceleration sensor at 12 o' clock direction of the steering wheel, picking up a force signal of the force hammer and an acceleration signal of the acceleration sensor, and calculating the vibration transfer function of the steering wheel by using fourier transform to measure the vibration level of the steering wheel to the unit force input of the excitation point, wherein the lower the value is, the better the vibration level is. When an acceleration sensor is installed on a steering wheel, the requirements are as follows: 1. the sensor is firmly installed; 2. the sensor is required to be installed horizontally, that is, to be installed according to a certain coordinate system.
The conventional practice in the industry is to first attach an adhesive tape to the 12-point position of the steering wheel, so as to avoid the contamination of the steering wheel surface when attaching the sensor with glue. Then, the acceleration sensor is attached to the position of the steering wheel to which the tape is attached by using a glue (quick-drying glue such as 502/494). And finally, after the glue is solidified, in order to avoid the sensor from loosening in the test process, the sensor and the steering wheel are secondarily fixed by using the adhesive tape.
The conventional methods in the above-mentioned industries have the following problems: 1. the bottom of the sensor is a plane, the section of the steering wheel is cylindrical, the contact area between the sensor and the steering wheel is small, and the phenomenon of infirm adhesion can occur after the quick-drying adhesive is adhered, so that the test fails; 2. because the installation part of the steering wheel does not have a plane parallel to the horizontal direction, the installation direction of the sensor is easy to deviate during installation, and the test result is influenced; 3. in order to prevent the quick-drying adhesive from polluting the steering wheel during installation, the adhesive tape needs to be pasted for isolation, and an extra damping effect can be brought to a test position after the adhesive tape is pasted, so that a test result is influenced.
Disclosure of Invention
The utility model aims at providing an installation intensity is high is used for steering wheel vibration sensitivity testing arrangement.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a be used for steering wheel vibration sensitivity testing arrangement, its include the mount pad, peg graft in on the terminal surface under the mount pad and with the mount pad encloses and closes the locking lever that forms the closed loop, be used for locking lever and mount pad looks fixed connection's retaining member, sensor, the up end of mount pad is for having partial planform at least, sensor fixed mounting in on the planform.
Preferably, the locking rods are two in number and are formed by two straight sections and a bent section to be in a U shape, the straight sections are inserted into the mounting seat, the part of the straight sections extending out of the mounting seat is provided with threads, and the locking pieces are nuts in threaded connection with the straight sections.
Preferably, the number of the locking rods is two, the locking rods are formed by two straight sections and a bent section and are in a U shape, inserting holes which are respectively matched with the straight sections of the locking rods are formed in the mounting seat, the straight sections are inserted in the mounting seat and provided with anti-falling teeth, the mounting seat comprises an upper mounting block and a lower mounting block, mounting grooves for mounting the locking parts are formed in the splicing surfaces of the upper mounting block and the lower mounting block, each mounting groove comprises a long straight main groove and an auxiliary groove communicated with the main groove and the inserting holes, each locking part comprises a main limiting connecting rod arranged in the main groove, an auxiliary limiting connecting rod, a ratchet connected to the head end of the auxiliary limiting connecting rod and used for preventing the locking rods from sliding out of the inserting holes, and a spring connected in the mounting grooves and used for enabling the ratchet to have the tendency of moving towards the anti-falling teeth, one end of the main limiting connecting rod extends out of the side wall of the mounting seat.
Furthermore, the auxiliary groove is perpendicular to the main groove, the tail end of the auxiliary groove is spliced with the main groove, a supporting groove parallel to the main groove is formed in the head end of the auxiliary groove, the main limiting connecting rod, the auxiliary limiting connecting rod and the ratchet are arranged, when the main limiting connecting rod is pressed into the mounting seat, the main limiting connecting rod moves towards the inner portion of the mounting block along the main groove, the auxiliary limiting connecting rod moves towards the auxiliary groove and the ratchet moves towards the inner portion of the mounting block along the supporting groove, the ratchet is separated from the anti-falling teeth, and after pressure on the main limiting connecting rod is removed, the main limiting connecting rod moves towards the outer portion of the mounting block along the main groove, and the ratchet moves towards the direction of the plug hole along the supporting groove and is finally locked.
Preferably, the lower end surface of the mounting seat is arc-shaped.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the joint position of the testing device and the steering wheel is arc-shaped, so that the joint area is large, and the mounting strength is increased; the testing devices are all connected through bolts, so that the connection is firm and reliable, the test result is prevented from being influenced, and the steering wheel cannot be polluted during testing; the testing device can ensure that the sensor is installed in parallel to the horizontal direction, and the testing precision is ensured.
Drawings
FIG. 1 is a perspective view of a test device mounted on a steering wheel according to a first embodiment;
FIG. 2 is an exploded view of the test apparatus of the first embodiment;
FIG. 3 is a perspective view of the test device of the second embodiment when mounted on a steering wheel;
FIG. 4 is an exploded view of the test apparatus of the second embodiment;
FIG. 5 is a top view of the mounting base of the second embodiment;
FIG. 6 is a front view of the mount of the second embodiment;
FIG. 7 is a top view of the locking member of the first embodiment shown mounted to the lower mounting block;
FIG. 8 is a cross-sectional view A-A of FIG. 5;
FIG. 9 is a schematic view showing a connection structure of the ratchet and the locking lever;
fig. 10 is a partial view B of fig. 9.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Example one
A retaining member 4, sensor 5 for being used for steering wheel 1 vibration sensitivity testing arrangement includes mount pad 3, peg graft under mount pad 3 on the terminal surface and enclose with mount pad 3 and close the check lock pole 2 that forms the closed loop, be used for with check lock pole 2 and mount pad 3 looks fixed connection, the up end of mount pad 3 is for having partial planform at least, sensor 5 fixed mounting on the planform. The lower end surface of the mounting seat 3 is arc-shaped. The number of the locking rods 2 is two, the locking rods are formed by two straight sections 21 and one bent section 22 to be in a U shape, the straight sections 21 are inserted on the installation base 3, the parts of the straight sections 21 extending out of the installation base 3 are provided with threads, and the locking parts 4 are nuts in threaded connection with the straight sections 21.
The mounting seat is fixedly connected with the steering wheel through a locking rod and a nut, and then the sensor is pasted on the plane of the tool. The testing device is connected by bolts, so that the connection is firm and reliable, the test result is prevented from being influenced, and the steering wheel is not polluted during testing.
Example two
A retaining member 4, sensor 5 for being used for steering wheel 1 vibration sensitivity testing arrangement includes mount pad 3, peg graft under mount pad 3 on the terminal surface and enclose with mount pad 3 and close the check lock pole 2 that forms the closed loop, be used for with check lock pole 2 and mount pad 3 looks fixed connection, the up end of mount pad 3 is for having partial planform at least, sensor 5 fixed mounting on the planform. The lower end surface of the mounting seat 3 is arc-shaped. The locking rods 2 are two, the locking rods are formed by two straight sections 21 and a bent section 22 and are U-shaped, inserting holes 23 which are matched with the straight sections 21 of the locking rods 2 respectively are formed in the installation seat 3, the straight sections 21 are inserted into the installation seat 3 and provided with anti-falling teeth 24, the installation seat 3 comprises an upper installation block 31 and a lower installation block 32 which are fixedly connected through a bolt assembly 36, the bolt assembly 36 is connected to bolt holes 37 of the installation block 3, installation grooves 33 used for installing locking pieces 4 are formed in the splicing surfaces of the upper installation block 31 and the lower installation block 32, each installation groove 33 comprises a long straight main groove 34, a main communicating groove 34 and an auxiliary groove 35 of the inserting hole 23, each locking piece 4 comprises a main limiting connecting rod 41 arranged in the main groove 34, an auxiliary limiting connecting rod 42, a ratchet 43, the tail end of each locking rod is fixedly connected with the main limiting connecting rod 41 and arranged in the auxiliary groove 35, the ratchet teeth are connected to the head end of the auxiliary limiting connecting rod 42 and used for preventing the locking rods, A spring 44 connected to the mounting groove 33 for making the ratchet 43 have a tendency to move toward the falling off preventive tooth 24, a ratchet 43 and a spring 44 are provided at one side of each insertion hole, one end portion of the main limit link 41 is protruded to the side wall of the mounting seat 3, and a spring 44 is provided between the other end portion thereof and the bottom of the main groove 34. The auxiliary groove 35 is perpendicular to the main groove 34, the tail end of the auxiliary groove is spliced with the main groove 34, the head end of the auxiliary groove 35 is provided with a branch groove parallel to the main groove 34, the main limiting connecting rod 41, the auxiliary limiting connecting rod 42 and the ratchet 43, when the main limiting connecting rod 41 is pressed towards the mounting base 3, the main limiting connecting rod 41 moves towards the inner part of the mounting block along the main groove 34 and the auxiliary limiting connecting rod 42 along the auxiliary groove 35 and the ratchet 43 along the branch groove, the ratchet 43 is separated from the anti-falling teeth 24, when the pressure on the main limiting connecting rod 41 is removed, the main limiting connecting rod 41 moves towards the outer part of the mounting block along the main groove 34, and the ratchet 43 moves towards the direction of the plug-in hole 23 along the branch. The lower end surface of the mounting seat 3 is arc-shaped.
1. The ratchet mechanism is utilized to lock the locking rod and the mounting plate, so that the mounting convenience is improved, the connection strength is enhanced, and the pollution of quick-drying adhesive to the surface of the steering wheel in the test process is avoided;
2. the contact position of the mounting plate and the steering wheel is arc-shaped, so that the contact area is increased, and the strength and the reliability of tool mounting are improved;
3. the upper surface of the mounting plate is a plane, so that the mounting plate is easy to adjust and parallel to the horizontal direction, and the mounting direction of the sensor is ensured;
4. the upper surface of the mounting plate is a plane, and when the mounting plate is connected with a sensor through quick-drying glue, the contact area is large, and the mounting strength and reliability are high;
5 the whole system does not need adhesive tapes to participate in fixing, the installation strength is high, and the test precision is improved.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A vibration sensitivity testing device for a steering wheel is characterized in that: the locking device comprises a mounting seat, a locking rod which is inserted into the lower end face of the mounting seat in a splicing mode and is enclosed by the mounting seat to form a closed loop, a locking piece and a sensor, wherein the locking piece and the sensor are used for fixedly connecting the locking rod and the mounting seat, the upper end face of the mounting seat is at least provided with a part of flat surface, and the sensor is fixedly mounted on the flat surface.
2. The device for testing steering wheel vibration sensitivity according to claim 1, characterized in that: the locking rods are two, the locking rods are formed by two straight sections and one bent section to be U-shaped, the straight sections are inserted into the mounting seat, the part of the straight sections extending out of the mounting seat is provided with threads, and the locking pieces are nuts in threaded connection with the straight sections.
3. The device for testing steering wheel vibration sensitivity according to claim 1, characterized in that: the locking device comprises a mounting seat, a locking rod and a locking rod, wherein the mounting seat is provided with two straight sections and a bent section which are in a U shape, the mounting seat is provided with inserting holes which are respectively matched with the straight sections of the locking rod, the straight sections are inserted on the mounting seat and provided with anti-falling teeth, the mounting seat comprises an upper mounting block and a lower mounting block, mounting grooves for mounting the locking part are formed in the splicing surfaces of the upper mounting block and the lower mounting block, each mounting groove comprises a long straight main groove and an auxiliary groove communicated with the main groove and the inserting holes, the locking part comprises a main limiting connecting rod arranged in the main groove, an auxiliary limiting connecting rod, a ratchet, a mounting groove and a spring, the tail end of the auxiliary limiting connecting rod is fixedly connected with the main limiting connecting rod and arranged in the auxiliary groove, the ratchet is connected to the head end of the auxiliary limiting connecting rod and is used for preventing the locking rod from sliding out of the inserting holes, the mounting groove is connected to, one end of the main limiting connecting rod extends out of the side wall of the mounting seat.
4. The device for testing steering wheel vibration sensitivity according to claim 3, characterized in that: the auxiliary groove is perpendicular to the main groove, the tail end of the auxiliary groove is spliced with the main groove, a branch groove parallel to the main groove is formed in the head end of the auxiliary groove, the main limiting connecting rod, the auxiliary limiting connecting rod and the ratchet are arranged, when the main limiting connecting rod is pressed into the mounting seat, the main limiting connecting rod moves towards the inner portion of the mounting block along the main groove, the auxiliary limiting connecting rod moves towards the inner portion of the mounting block along the auxiliary groove, the ratchet is separated from the anti-falling teeth, and after pressure on the main limiting connecting rod is removed, the main limiting connecting rod moves towards the outer portion of the mounting block along the main groove, and the ratchet moves towards the direction of the plug hole along the branch groove and is finally locked.
5. The device for testing steering wheel vibration sensitivity according to claim 1, characterized in that: the lower end surface of the mounting seat is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921937995.9U CN211234987U (en) | 2019-11-11 | 2019-11-11 | Be used for steering wheel vibration sensitivity testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921937995.9U CN211234987U (en) | 2019-11-11 | 2019-11-11 | Be used for steering wheel vibration sensitivity testing arrangement |
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| CN211234987U true CN211234987U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921937995.9U Active CN211234987U (en) | 2019-11-11 | 2019-11-11 | Be used for steering wheel vibration sensitivity testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051016A (en) * | 2020-08-26 | 2020-12-08 | 东风汽车集团有限公司 | Steering wheel vibration testing device, system and method |
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2019
- 2019-11-11 CN CN201921937995.9U patent/CN211234987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051016A (en) * | 2020-08-26 | 2020-12-08 | 东风汽车集团有限公司 | Steering wheel vibration testing device, system and method |
| CN112051016B (en) * | 2020-08-26 | 2021-10-15 | 东风汽车集团有限公司 | Steering wheel vibration testing device, system and method |
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