CN113418589A - Wheel core excitation testing device under whole vehicle state - Google Patents
Wheel core excitation testing device under whole vehicle state Download PDFInfo
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- CN113418589A CN113418589A CN202110672920.8A CN202110672920A CN113418589A CN 113418589 A CN113418589 A CN 113418589A CN 202110672920 A CN202110672920 A CN 202110672920A CN 113418589 A CN113418589 A CN 113418589A
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 230000005284 excitation Effects 0.000 title claims abstract description 34
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 238000011161 development Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009191 jumping Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/045—Allowing translations adapted to left-right translation movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/046—Allowing translations adapted to upward-downward translation movement
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a wheel core excitation testing device in a finished automobile state, which mainly comprises a rim fixing support, a sliding ring, an adjustable telescopic rod and a telescopic fixing rod, wherein the sliding ring comprises a sliding ring rotor and a sliding ring stator, and the sliding ring rotor and the sliding ring stator are respectively provided with a BNC wire harness interface for connecting a vibration sensor and transmitting a vibration signal; the slip ring rotor is connected with the rim through the rim fixing support and rotates along with the rim, the rear end of the slip ring stator is connected with one end of an adjustable telescopic rod, the other end of the adjustable telescopic rod is connected with a telescopic fixing rod, and the telescopic fixing rod is used for being fixedly connected with the wheel cover. The invention realizes the high-precision wired test of the wheel core vibration under the high-speed horizontal running of the whole vehicle, realizes the function of testing the excitation (vibration) of the wheel core under the high-speed running state of the whole vehicle, and meets the development requirement of road noise performance.
Description
Technical Field
The invention relates to equipment for carrying out high-precision measurement aiming at wheel core vibration excitation in a vehicle development process, in particular to a wheel core excitation testing device under a whole vehicle state.
Background
Along with the increasing requirements of people on the NVH (noise and vibration) performance of a vehicle, the problem of road noise (road noise for short) is always an important index influencing the NVH performance development of the whole vehicle, the road excitation (the excitation condition of a wheel core) needs to be measured in the normal vehicle development process, and the noise and vibration response in the vehicle is calculated through simulation and test according to the excitation size and frequency. The prior art schemes are generally two types:
first, a wired vibration sensor is employed.
Because the tire is a rotating part in the running state of the whole vehicle, the wired vibration sensor cannot be arranged at the wheel core (the wire harness at the tail part of the sensor is wound and torn), so a tester can only arrange the wired vibration sensor at the steering column, the vibration condition is regarded as an excitation source of road noise, and the simulation calculation process is not accurate because the excitation is transmitted by components such as a brake disc and the like.
Second, a wireless vibration sensor is employed.
The measurement is performed using a wireless vibration sensor (composed of piezoelectric vibration sensor, processor and wireless transmission device) as shown in fig. 1: the sensor is arranged (magnetically attracted or glued) at the wheel core, the piezoelectric vibration sensor tests the vibration condition of the wheel core in a low-speed running state of a vehicle, and the vibration condition is processed by the processor and then transmitted to a receiving end (equipment such as a mobile phone and a computer) by wireless transmission equipment (Bluetooth and the like).
The wireless vibration sensor is limited in the aspects of volume, power supply and the like, and the sampling rate of the equipment and the bandwidth of the acquisition frequency are influenced, so that the wireless vibration sensor can only meet the test requirement of low-rotation-speed vibration, the high-rotation-speed vibration test cannot be accurately measured, and the test data is not matched with mainstream analysis software, so that the road noise test requirement cannot be met.
Meanwhile, the wireless sensing equipment is weak in anti-interference capability in the measurement and data transmission processes and is easily influenced by the outside.
That is, the sampling rate and the anti-interference capability of the wireless vibration sensor cannot meet the test requirement of high rotation speed.
In summary, the existing testing equipment technology cannot meet the requirement of measuring the excitation of the wheel core under the high-speed running state of the whole vehicle. There is a need for a wheel core excitation (vibration) testing device to meet the development requirements for vehicle road noise performance.
Disclosure of Invention
The invention aims to provide a wheel core excitation testing device in a finished automobile state, which aims at carrying out high-precision measurement on wheel core vibration excitation in the finished automobile high-rotating-speed driving state and meeting the development requirement of road noise performance.
In order to solve the technical problems, the invention adopts the following technical scheme:
a wheel core excitation testing device in a finished automobile state mainly comprises a rim fixing support, a slip ring, an adjustable telescopic rod and a telescopic fixing rod, wherein the slip ring comprises a slip ring rotor and a slip ring stator, and the slip ring rotor and the slip ring stator are respectively provided with a BNC wire harness interface for connecting a vibration sensor and transmitting a vibration signal; the slip ring rotor is connected with the rim through the rim fixing support and rotates along with the rim, the rear end of the slip ring stator is connected with one end of an adjustable telescopic rod, the other end of the adjustable telescopic rod is connected with a telescopic fixing rod, and the telescopic fixing rod is used for being fixedly connected with the wheel cover.
The slip ring stator comprises a stator shell, a connecting support and a stator BNC wire harness interface; the connecting support is positioned at the rear end of the stator shell and is used for being connected with the adjustable telescopic rod; the stator BNC wire harness interface is used for connecting a data acquisition line;
the slip ring rotor comprises a rotor body and a rotor BNC wire harness interface, wherein the rotor body is rotatably arranged in the stator shell, and the front end of the rotor body is connected with a rim through a rim fixing support and rotates along with the rim; and the rotor BNC wire harness interface is used for connecting a vibration sensor wire harness.
The front end of a rotor body of the slip ring rotor is provided with an annular rotor sliding groove, the rim fixing support comprises a plurality of sliding seats which are arranged on the rotor sliding groove, the sliding seats are in sliding fit with the rotor sliding groove, the sliding seats are provided with first locking knobs, the sliding seats can slide in the rotor sliding groove and are fixed with the rotor sliding groove through the first locking knobs; all be connected with the support arm on every slide, the front end of support arm is equipped with the support seat, and the support seat links to each other with the rim.
The rotor sliding groove is located on the periphery of the front end of the rotor body.
The holder arms diverge forwards and outwards.
The support base is connected with the wheel rim through gluing.
The adjustable telescopic rod comprises a telescopic rod body, and a fixed support is arranged at the lower end of the telescopic rod body and is in fit connection with a connecting support on the slip ring stator;
the connecting support on the slip ring stator is a spherical support, the spherical support consists of a rectangular cylinder and a ball body, the rectangular cylinder is fixedly connected with the stator shell, and the ball body is fixed at the end part of the rectangular cylinder;
the fixed support comprises a base body and a spherical groove arranged at the center of the base body, a horizontal rectangular slot is outwards arranged on the spherical groove, the rectangular slot is matched with a rectangular cylinder of the slip ring stator, and the spherical groove is matched with a sphere of the slip ring stator.
The telescopic rod body comprises a vertical telescopic sleeve arm and a vertical telescopic arm which is inserted in the vertical telescopic sleeve arm in a sliding manner, the upper end of the vertical telescopic arm extends into the vertical telescopic sleeve arm, and the lower end of the vertical telescopic arm extends to the telescopic sleeve arm and is connected with a fixed support;
a spring and a sliding block are sequentially arranged at the upper end of the vertical telescopic arm in the vertical telescopic sleeve arm upwards, and the two ends of the spring are respectively abutted and matched with the upper end of the vertical telescopic arm and the sliding block; still be equipped with vertical spout on the vertical flexible lagging arm, the slider outwards is connected with the slider spanner, and the slider spanner stretches out by vertical spout, and is equipped with second locking knob on the slider spanner, and the slider spanner can drive the slider and slide and through the locking of second locking knob in vertical flexible lagging arm.
The telescopic fixing rod comprises a horizontal telescopic sleeve arm and a horizontal telescopic arm which is inserted in the horizontal telescopic sleeve arm in a sliding mode, a third locking knob is arranged on the horizontal telescopic sleeve arm, and the horizontal telescopic arm can slide in the horizontal telescopic sleeve arm and is locked through the third locking knob;
the end, extending out of the horizontal telescopic arm, of the horizontal telescopic arm is coaxially and rotatably connected with a stud, a clamping plate in threaded connection with the stud is sleeved on the stud, a horizontal guide plate is further arranged on the clamping plate, the guide plate is in sliding connection with the horizontal telescopic arm, and the stud rotates and drives the clamping plate to move.
And the other end of the stud is provided with an adjusting knob.
The invention has the beneficial effects that:
the invention realizes the high-precision wired test of the wheel core vibration under the high-speed horizontal running of the whole vehicle, realizes the function of testing the excitation (vibration) of the wheel core under the high-speed running state of the whole vehicle, and meets the development requirement of road noise performance.
The structural design of the adjustable telescopic rod in the invention can prevent the tire from jumping up and down in the test process to damage the test device while realizing the function of adjusting the telescopic height, thereby meeting the measurement of the large-amplitude jumping working condition of the whole vehicle tire.
The structural design of the rim fixing support is suitable for the wheel core excitation (vibration) test of tires of different models.
According to the invention, the matching structure design of the fixed support and the spherical support is adopted, the rectangular open groove is matched with the rectangular cylinder of the slip ring stator, and the spherical groove is matched with the sphere of the slip ring stator, so that the slip ring stator can rotate along the vertical axis of the adjustable telescopic rod, namely horizontally swing, and meanwhile, the slip ring stator is not rotated along with the slip ring rotor under the limitation of the adjustable telescopic rod, so that the measurement of the steering working condition of the wheel core under the whole vehicle state is met.
Drawings
FIG. 1 is a schematic diagram of a prior art wireless vibration sensor;
FIG. 2 is a schematic view of the overall structure in a front view direction according to the present invention;
FIG. 3 is a schematic view of the overall structure in the rear view direction of the present invention;
FIG. 4 is a schematic structural view of a rim fixing bracket according to the present invention;
FIG. 5 is a schematic view of a slip ring rotor according to the present invention;
FIG. 6 is a schematic structural view of a slip ring stator according to the present invention;
FIG. 7 is a schematic structural view of an adjustable telescopic shaft according to the present invention;
FIG. 8 is a cross-sectional view of the adjustable extension pole of the present invention;
FIG. 9 is an enlarged view of the mounting bracket of FIG. 8;
fig. 10 is a schematic structural view of the telescopic fixing rod of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
The terms referred to in this example are to be interpreted: 1. a slip ring: the electrical appliance part is used for communicating the rotating body and transmitting energy and signals, wherein the slip ring rotor rotates along with the rotating body, and the stator is fixed; 2. sampling rate: the number of acquisition times per unit time; 3. road noise: tire noise and road surface excitation (vibration) transmitted in a running state of the vehicle cause vibration and noise in the vehicle.
As shown in fig. 2 to 10, the wheel core excitation testing device in a whole vehicle state of the invention mainly comprises a rim fixing support 1, a slip ring, an adjustable telescopic rod 4 and a telescopic fixing rod 5, wherein the slip ring comprises a slip ring rotor 2 and a slip ring stator 3, and the slip ring rotor 2 and the slip ring stator 3 are respectively provided with a BNC wire harness interface for connecting a vibration sensor and transmitting a vibration signal; slip ring rotor 2 passes through rim fixed bolster 1 and is connected with the rim to rotate along with, 3 rear ends of slip ring stator are connected with 4 one end of adjustable telescopic link, and the 4 other ends of adjustable telescopic link are connected with flexible dead lever 5, and flexible dead lever 5 is used for with wheel casing fixed connection.
The specific structure of each part is as follows:
the slip ring stator 3 comprises a stator shell 13, a spherical support 14 and a stator BNC wire harness interface 15; the spherical support 14 is positioned at the rear end of the stator shell 13 and is used for being connected with the adjustable telescopic rod 4; stator BNC pencil interface 15 is used for connecting the data line.
The slip ring rotor 2 comprises a rotor body 11 and a rotor BNC wire harness interface 12, wherein the rotor body 11 is rotatably installed in a stator shell 13, and the front end of the rotor body 11 is connected with a rim through a rim fixing support 1 and rotates along with the rim; rotor BNC pencil interface 12 is used for connecting the vibration sensor pencil.
An annular rotor sliding groove 10 is formed in the periphery of the front end of the rotor body, the rim fixing support 1 comprises three sliding seats 8 which are arranged on the rotor sliding groove 10 in a row, the sliding seats 8 are in sliding fit with the rotor sliding groove 10, a first locking knob 9 (the first locking knob is of a screw structure) is arranged on each sliding seat 8, and the sliding seats 8 can slide in the rotor sliding grooves 10 and are fixed with the rotor sliding grooves 10 through the first locking knob 9; all be connected with support arm 7 on every slide 8, support arm 7 is forward and outdiffusion, and the front end of support arm 7 is equipped with a support seat 6, and support seat 6 links to each other with the rim through gluing.
The adjustable telescopic rod 4 comprises a telescopic rod body, and a fixed support 18 is arranged at the lower end of the telescopic rod body and is connected with a spherical support 14 on the sliding ring stator 3 in a matching manner.
The spherical support 14 is composed of a rectangular cylinder 16 and a sphere 17, the rectangular cylinder 16 is fixedly connected with the stator housing 13, and the sphere 17 is fixed at the end of the rectangular cylinder 16.
The fixed support 18 comprises a base body 25 and a spherical groove 27 at the center of the base body, a horizontal rectangular slot 26 is arranged outwards from the spherical groove 27, wherein the rectangular slot 26 is matched with the rectangular column 16 of the slip ring stator, and the spherical groove 27 is matched with the sphere 17 of the slip ring stator, so that the slip ring stator 3 can rotate along the vertical axis of the adjustable telescopic rod 4, namely horizontally swing, and the function of limiting the slip ring stator 3 to rotate along with the slip ring rotor 2 is realized; .
The telescopic rod body comprises a vertical telescopic sleeve arm 20 and a vertical telescopic arm 19 which is inserted in the vertical telescopic sleeve arm 20 in a sliding mode, the upper end of the vertical telescopic arm 19 extends into the vertical telescopic sleeve arm, and the lower end of the vertical telescopic arm 19 extends out of the telescopic sleeve arm and is fixedly connected with a fixed support 18.
A spring 21 and a sliding block 22 are sequentially arranged upwards at the upper end of the vertical telescopic arm 19 in the vertical telescopic sleeve arm 20, and two ends of the spring 21 are respectively abutted and matched with the upper end of the vertical telescopic arm 19 and the sliding block 22; the vertical telescopic arm 20 is further provided with a vertical sliding slot, the sliding block 22 is outwardly connected with a sliding block wrench 23, the sliding block wrench 23 extends out of the vertical sliding slot, the sliding block wrench 23 is provided with a second locking knob 24, and the sliding block wrench 23 can drive the sliding block 22 to slide in the vertical telescopic arm 20 and be locked through the second locking knob 24, so that the spring 21 is compressed to control the extension and retraction of the vertical telescopic arm 19. Through above-mentioned structure when realizing adjusting flexible high function, prevent to beat damage testing arrangement about the tire in the test procedure.
In this embodiment, the second locking knob 24 is of a screw structure, and the slider wrench 23 is narrow in the portion passing through the vertical sliding groove and wide in the outside, so that the screw end of the second locking knob 24 can be abutted to the vertical telescopic arms 20 on both sides of the vertical sliding groove, thereby achieving the locking function.
The flexible dead lever includes the flexible armlet of horizontal 28 and slides the flexible arm 29 of horizontal of pegging graft in the flexible armlet of horizontal, is equipped with third locking knob 33 (third locking knob is the screw structure) on the flexible armlet of horizontal 28, and the flexible arm 29 of horizontal can slide and carry out the locking through third locking knob 33 in the flexible armlet of horizontal 28 to this realizes flexible function.
The end of the horizontal telescopic arm 29 extending out of the horizontal telescopic arm 28 is coaxially and rotatably connected with a stud 30, a clamping plate 31 in threaded connection with the stud 30 is sleeved on the stud 30, a horizontal guide plate is further arranged on the clamping plate 31, the guide plate extends towards the horizontal telescopic arm and is in sliding connection with the horizontal telescopic arm, an adjusting knob 32 is further arranged at the other end of the stud, the adjusting knob 32 can drive the stud 30 to rotate and drive the clamping plate 31 to move, and therefore the fixing function of the lower edge of the telescopic fixing rod 5 and the wheel cover is achieved.
The structural design of the adjustable telescopic rod 4 in the invention can prevent the tire from jumping up and down in the test process to damage the test device while realizing the function of adjusting the telescopic height, thereby meeting the measurement of the large-amplitude jumping working condition of the whole vehicle tire.
The structural design of the rim fixing support 1 is suitable for the wheel core excitation (vibration) test of tires of different models.
According to the invention, the matching structure design of the fixed support 18 and the spherical support 14 enables the slip ring stator to rotate along the vertical axis of the adjustable telescopic rod, namely horizontally swing, and simultaneously, the slip ring stator is not rotated along with the slip ring rotor due to the limitation of the adjustable telescopic rod, so that the measurement of the steering working condition of the wheel core under the whole vehicle state is met.
The test function (method) implementation of the present invention is illustrated below:
(1) firstly, a wired vibration sensor is pasted to a wheel core and is connected to a rotor BNC wiring harness interface 12 of the slip ring rotor 2 through a wiring harness (short wire);
(2) adjusting the position of a rim fixing support 1 according to the structure of the tested tire rim and fixing the rim fixing support with a rotor chute 10 through a first locking knob 9;
(3) the rim fixing bracket 1 is connected with the rim by gluing through the bracket seat 6;
(4) the telescopic amount of the telescopic arm 19 and the relative position of the slip ring rotor 2 and the slip ring stator 3 are adjusted through a slider wrench 23 of the telescopic rod 4, so that the telescopic fixed rod 5 is flush with the lower edge of the wheel cover and vertical to the lower edge of the wheel cover, and the stud 30 is driven to rotate and the clamping plate 31 is driven to move through the knob 32, so that the fixing function of the telescopic fixed rod 5 and the lower edge of the wheel cover is realized;
(5) the stator BNC wiring harness interface 15 is connected with a data acquisition unit (data acquisition unit) by using a data wire, and the excitation condition of the wheel core is calculated by a computer.
The device realizes high-precision wired test of wheel core vibration under high-speed horizontal running of the whole vehicle.
The invention realizes the function of testing aiming at the excitation (vibration) of the wheel core under the high-speed running state of the whole vehicle, can carry out high-precision measurement aiming at the vibration excitation of the wheel core and meets the development requirement of road noise performance.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (10)
1. The utility model provides a wheel core excitation testing arrangement under whole car state which characterized in that: the wheel rim slip ring mainly comprises a wheel rim fixing support, a slip ring, an adjustable telescopic rod and a telescopic fixing rod, wherein the slip ring comprises a slip ring rotor and a slip ring stator, and the slip ring rotor and the slip ring stator are respectively provided with a BNC wire harness interface for connecting a vibration sensor and transmitting a vibration signal; the slip ring rotor is connected with the rim through the rim fixing support and rotates along with the rim, the rear end of the slip ring stator is connected with one end of an adjustable telescopic rod, the other end of the adjustable telescopic rod is connected with a telescopic fixing rod, and the telescopic fixing rod is used for being fixedly connected with the wheel cover.
2. The wheel core excitation testing device under the whole vehicle state according to claim 1, characterized in that: the slip ring stator comprises a stator shell, a connecting support and a stator BNC wire harness interface; the connecting support is positioned at the rear end of the stator shell and is used for being connected with the adjustable telescopic rod; the stator BNC wire harness interface is used for connecting a data acquisition line;
the slip ring rotor comprises a rotor body and a rotor BNC wire harness interface, wherein the rotor body is rotatably arranged in the stator shell, and the front end of the rotor body is connected with a rim through a rim fixing support and rotates along with the rim; and the rotor BNC wire harness interface is used for connecting a vibration sensor wire harness.
3. The wheel core excitation testing device under the whole vehicle state according to claim 2, characterized in that: the front end of a rotor body of the slip ring rotor is provided with an annular rotor sliding groove, the rim fixing support comprises a plurality of sliding seats which are arranged on the rotor sliding groove, the sliding seats are in sliding fit with the rotor sliding groove, the sliding seats are provided with first locking knobs, the sliding seats can slide in the rotor sliding groove and are fixed with the rotor sliding groove through the first locking knobs; all be connected with the support arm on every slide, the front end of support arm is equipped with the support seat, and the support seat links to each other with the rim.
4. The vehicle wheel core excitation testing device under the vehicle state according to claim 3, characterized in that: the rotor sliding groove is located on the periphery of the front end of the rotor body.
5. The vehicle wheel core excitation testing device under the vehicle state according to claim 3, characterized in that: the holder arms diverge forwards and outwards.
6. The vehicle wheel core excitation testing device under the vehicle state according to claim 3, characterized in that: the support base is connected with the wheel rim through gluing.
7. The wheel core excitation testing device under the whole vehicle state according to claim 2, characterized in that: the adjustable telescopic rod comprises a telescopic rod body, and a fixed support is arranged at the lower end of the telescopic rod body and is in fit connection with a connecting support on the slip ring stator;
the connecting support on the slip ring stator is a spherical support, the spherical support consists of a rectangular cylinder and a ball body, the rectangular cylinder is fixedly connected with the stator shell, and the ball body is fixed at the end part of the rectangular cylinder;
the fixed support comprises a base body and a spherical groove arranged at the center of the base body, a horizontal rectangular slot is outwards arranged on the spherical groove, the rectangular slot is matched with a rectangular cylinder of the slip ring stator, and the spherical groove is matched with a sphere of the slip ring stator.
8. The vehicle wheel core excitation testing device under the vehicle state according to claim 7, characterized in that: the telescopic rod body comprises a vertical telescopic sleeve arm and a vertical telescopic arm which is inserted in the vertical telescopic sleeve arm in a sliding manner, the upper end of the vertical telescopic arm extends into the vertical telescopic sleeve arm, and the lower end of the vertical telescopic arm extends to the telescopic sleeve arm and is connected with a fixed support;
a spring and a sliding block are sequentially arranged at the upper end of the vertical telescopic arm in the vertical telescopic sleeve arm upwards, and the two ends of the spring are respectively abutted and matched with the upper end of the vertical telescopic arm and the sliding block; still be equipped with vertical spout on the vertical flexible lagging arm, the slider outwards is connected with the slider spanner, and the slider spanner stretches out by vertical spout, and is equipped with second locking knob on the slider spanner, and the slider spanner can drive the slider and slide and through the locking of second locking knob in vertical flexible lagging arm.
9. The wheel center excitation testing device under the finished vehicle state according to any one of claims 1 to 8, characterized in that: the telescopic fixing rod comprises a horizontal telescopic sleeve arm and a horizontal telescopic arm which is inserted in the horizontal telescopic sleeve arm in a sliding mode, a third locking knob is arranged on the horizontal telescopic sleeve arm, and the horizontal telescopic arm can slide in the horizontal telescopic sleeve arm and is locked through the third locking knob;
the end, extending out of the horizontal telescopic arm, of the horizontal telescopic arm is coaxially and rotatably connected with a stud, a clamping plate in threaded connection with the stud is sleeved on the stud, a horizontal guide plate is further arranged on the clamping plate, the guide plate is in sliding connection with the horizontal telescopic arm, and the stud rotates and drives the clamping plate to move.
10. The vehicle wheel core excitation testing device under the vehicle state according to claim 9, characterized in that: and the other end of the stud is provided with an adjusting knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110672920.8A CN113418589B (en) | 2021-06-17 | 2021-06-17 | Wheel core excitation testing device in whole vehicle state |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110672920.8A CN113418589B (en) | 2021-06-17 | 2021-06-17 | Wheel core excitation testing device in whole vehicle state |
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| CN113418589A true CN113418589A (en) | 2021-09-21 |
| CN113418589B CN113418589B (en) | 2023-08-11 |
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