CN204359262U - A kind of wheel hop measuring device - Google Patents
A kind of wheel hop measuring device Download PDFInfo
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- CN204359262U CN204359262U CN201420674884.4U CN201420674884U CN204359262U CN 204359262 U CN204359262 U CN 204359262U CN 201420674884 U CN201420674884 U CN 201420674884U CN 204359262 U CN204359262 U CN 204359262U
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- wheel
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Abstract
The utility model provides a kind of wheel hop measuring device, and described wheel hop measuring device comprises the wheel shaft extension fixture be installed on wheel and the LVDT sensor be connected with described wheel shaft extension fixture.The utility model, by the wheel hop amount arranging the vertical and longitudinal direction can measuring wheel of vehicle in traveling of vertical LVDT sensor and longitudinal LVDT sensor, makes measurement result more meet the practical operation situation of vehicle, improves measuring accuracy.
Description
Technical field
The utility model relates to automotive field, especially relates to a kind of wheel hop measuring device.
Background technology
Automobile is in the process of moving because of Uneven road or run into the operating modes such as braking, acceleration, and suspension can be compressed or stretch and impact to alleviate and improve riding comfort.In the process, wheel is subject to the various load such as impulsive force of driving force, running resistance, damping force, uneven road surface, and these load can make wheel along with suspension and vehicle body generation relative motion.Relative shift between wheel and vehicle body wants size to fit.Relative shift is too large, and wheel and wheel cover easily collide danger; Relative shift is too little, the impact that causes vehicle body can be made too large, and then reduce riding comfort.Therefore, be necessary to test the wheel hop amount in vehicle travel process.
In the prior art, the test of wheel hop amount generally can be carried out on testing table, this kind of method of testing only can test the static jerk value of wheel, cannot test the wheel hop amount be in driving process, thus can not reflect the actual situation of beating of wheel truly.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of wheel hop measuring device, and this wheel hop measuring device can be measured wheel hop amount accurately when vehicle travels.
The wheel hop measuring device that the utility model embodiment provides, described wheel hop measuring device comprises wheel shaft extension fixture, vertical LVDT sensor, longitudinal LVDT sensor, vertical mounting bracket and longitudinal mounting bracket, described vertical mounting bracket and described longitudinal mounting bracket are fixed on vehicle body, on the wheel shaft that described wheel shaft extension fixture is fixed on described wheel and it at least partially can with described vehicle wheel rotation, described vertical LVDT sensor setting is between described vertical mounting bracket and described wheel shaft extension fixture, described longitudinal LVDT sensor setting is between described longitudinal mounting bracket and described wheel shaft extension fixture.
According to an embodiment of the present utility model, the two ends of described vertical LVDT sensor and described longitudinal LVDT sensor are respectively provided with a bar portion bearing, and described vertical LVDT sensor and described longitudinal LVDT sensor are by being fixed on the free end of described wheel shaft extension fixture through the retaining element of described bar portion bearing.
According to an embodiment of the present utility model, described wheel shaft extension fixture comprises adaptive dish and is located at the extending shaft on described adaptation dish, described adaptation dish is fixed on described wheel, and the free end of described extending shaft is connected with described vertical LVDT sensor and described longitudinal LVDT sensor.
According to an embodiment of the present utility model, described adaptation dish has a fixed part near one end of described wheel, the inside of described fixed part is provided with the axis hole supplying the wheel shaft of wheel to penetrate, and the outer peripheral face of the free end of described fixed part caves inward and forms a shaft shoulder portion, described fixed part is sticked between the semiaxis erection bolt of wheel and the hub bearing of wheel by described axis hole and described shaft shoulder portion.
According to an embodiment of the present utility model, described wheel is provided with boss bolt, the end of described boss bolt has threaded hole, described adaptation dish offers the through hole corresponding with described boss bolt, and described wheel shaft extension fixture is screwed into described threaded hole bolt by the through hole through described adaptation dish is fixed on described wheel.
According to an embodiment of the present utility model, the through hole on described adaptation dish is the circular port or the bar hole that are uniformly distributed in adaptive dish circumference.
According to an embodiment of the present utility model, described extending shaft and described adaptation are coiled and are fixed as one, and along with the rotation of described wheel is relative to described vertical LVDT sensor and described longitudinal LVDT sensor rotation.
According to an embodiment of the present utility model, described extending shaft and described adaptation are provided with bearing between coiling, the radial direction of described wheel shaft extension fixture is provided with the perforation be connected with described bearing, described bearing is fixed between described extending shaft and described adaptation coil by the bolt being screwed into described perforation, and described vertical LVDT sensor and described longitudinal LVDT sensor are secured by bolts in the free end of described extending shaft.
According to an embodiment of the present utility model, described vertical mounting bracket and described longitudinal mounting bracket respectively comprise the first relative web joint and the second web joint and the connection transverse slat between the first web joint and the second web joint, described first web joint is provided with the connecting hole for connecting vertical LVDT sensor or longitudinal LVDT sensor, and described second web joint is fixed on described vehicle body.
In sum, wheel hop measuring device provided by the utility model, owing to have employed highly sensitive, that measurement range is wide, reproducible LVDT sensor, and accurately can measure the jerk value of wheel.And, because wheel hop measuring device of the present utility model is fixed on wheel by wheel shaft extension fixture, what make wheel shaft extension fixture at least partially can with rotation of wheel, thus the measurement of wheel hop amount can be carried out in the driving process of vehicle, make measurement result more meet the practical operation situation of vehicle, improve measuring accuracy.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
The package assembly schematic diagram of the wheel hop measuring device that Fig. 1 provides for the utility model.
Fig. 2 is the annexation schematic diagram of wheel shaft extension fixture and wheel.
Fig. 3 is the close-up schematic view of Fig. 2.
Fig. 4 is the structural representation of vertical LVDT sensor.
Fig. 5 is the structural representation of vertical mounting bracket in Fig. 1.
Fig. 6 is the structural representation of the wheel shaft extension fixture in another embodiment of the utility model.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in detail as follows.
As shown in Figure 1, wheel hop measuring device provided by the utility model mainly utilizes LVDT sensor (Linear Variable Differential Transformer, linear variable difference transformer) measure the jerk value of wheel 10, this device mainly comprises the vertical LVDT sensor 21 for measuring the vertical jerk value of wheel 10 and the longitudinal LVDT sensor 22 for measuring the longitudinal jerk value of wheel 10.
In addition, this wheel hop measuring device also comprises wheel shaft extension fixture 30 and mounting bracket 40.Wheel shaft extension fixture 30 is fixed on the wheel shaft 12 of wheel 10, mounting bracket 40 comprises vertical mounting bracket 41 and longitudinal mounting bracket 42, vertical mounting bracket 41 and longitudinal mounting bracket 42 are fixed on vehicle body 50, vertical LVDT sensor 21 is arranged between vertical mounting bracket 41 and wheel shaft extension fixture 30, longitudinal LVDT sensor 22 is arranged between longitudinal mounting bracket 42 and wheel shaft extension fixture 30, and vertical LVDT sensor 21 is mutually vertical with longitudinal LVDT sensor 22.
More specifically, as shown in Figures 2 and 3, wheel shaft extension fixture 30 comprise adaptive dish 32 and be located on adaptive dish 32 extending shaft 31, the axis of wheel shaft extension fixture 30 and the dead in line of wheel 10.Extending shaft 31 is fixed on adaptive dish 32 or with adaptation dish 32 by the mode of welding and is integrally processed to form.One end of the close wheel 10 of adaptive dish 32 has a columned fixed part 312, the axis of fixed part 312 and the dead in line of extending shaft 31.The inside of fixed part 312 is provided with the axis hole 311 supplying the wheel shaft 12 of wheel to penetrate, and the outer peripheral face of the free end of fixed part 312 caves inward and forms a shaft shoulder portion 313 at the free end of fixed part 312.When mounted, the top of the hub bearing 11 on wheel 10 is resisted against in the shaft shoulder portion 313 outside fixed part 312 free end, the inner side of fixed part 312 free end is then resisted against on the shaft shoulder of semiaxis erection bolt 121 top formation of wheel 10, thus fixed part 312 is sticked between the semiaxis erection bolt 121 of wheel 10 and the hub bearing 11 of wheel 10, and the part making wheel shaft 12 expose wheel 10 stretches in the axis hole 311 that fixed part 312 is formed.The free end of extending shaft 31 is connected with vertical LVDT sensor 21 and longitudinal LVDT sensor 22 by retaining element, particularly, have threaded hole 311 (see Fig. 6) at the free end of extending shaft 31, vertical LVDT sensor 21 can be fixed on wheel shaft extension fixture 30 with longitudinal LVDT sensor 22 by bolt simultaneously.
In order to better wheel shaft extension fixture 30 is fixed on wheel 10, in the present embodiment, the end of the boss bolt 13 of wheel 10 offers threaded hole 131, adaptive dish 32 offers the manhole 321 corresponding with the position of boss bolt 13, by the bolt 34 being screwed into threaded hole 131 through through hole 312, wheel shaft extension fixture 30 is fixed on wheel 10.In order to make the wheel hop measuring device of this case go for more vehicle, the manhole 321 on adaptive dish 32 also can for being uniformly distributed in some bar holes of wheel 10 axis.
As shown in Figure 4, vertical LVDT sensor 21 comprise a housing 211, stretch into housing 211 inner and can in housing 211 stretching motion expansion link 212, be attached to housing 211 inwall on for respond to expansion link 212 length variations in housing 211 inductive coil 213, be positioned at the connecting portion 214 of housing 211 two ends for being connected with above-mentioned wheel shaft extension fixture 30 and vertical mounting bracket 41 or longitudinal mounting bracket 42.Expansion link 212 can be made during wheel hop to move relative to housing 211, inductive coil 213 responds to the change in location of expansion link 212 in housing 211, and by signal transmission to the signal processor being positioned at vehicle interior, drawn the jerk value of wheel according to the information collected by signal processor.The structure of longitudinal LVDT sensor 22 is identical with the structure of vertical LVDT sensor 21, does not repeat them here.
In the present case, mainly measure for the longitudinal direction of the core wheel of vehicle when maximum acceleration from rest and maximum braking deceleration and vertical deviation, to design corresponding element, the displacement of core wheel is controlled in rational scope, avoid wheel and wheel cover to collide danger.
In the present embodiment, vertical LVDT sensor 21 and longitudinal LVDT sensor 22 are not impacted to make the rotation of wheel 10, the connecting portion 214 at vertical LVDT sensor 21 and longitudinal LVDT sensor 22 two ends is also respectively provided with a bar portion bearing (scheming not shown), when mounted, vertical LVDT sensor 21 and longitudinal LVDT sensor 22 are fixed on the vertical mounting bracket 41 of wheel shaft extension fixture 30 and its correspondence with on longitudinal mounting bracket 42 by the bolt by the bar portion bearing through vertical LVDT sensor 21 and longitudinal LVDT sensor 22, vertical LVDT sensor 21 and longitudinal LVDT sensor 22 can be rotated relative to wheel shaft extension fixture 30.
As shown in Figure 5, vertical mounting bracket 41 comprises a base plate 411, be positioned at two opposite sides of base plate 411 and first web joint 412 and second web joint 413 vertical with base plate 411, one connection transverse slat 414 perpendicular to base plate 411 and between the first web joint 412 and the second web joint 413, first web joint 412 is provided with the connecting hole 415 for connecting vertical LVDT sensor 21 or longitudinal LVDT sensor 22, vertical LVDT sensor 21 is by being fixed on vertical mounting bracket 42 through the bolt of connecting hole 415, second web joint 413 of vertical mounting bracket 42 is fixed on vehicle body 50, in the present embodiment, second web joint 413 of vertical mounting bracket 41 is affixed on vehicle body 50 by AB is gluing.The structure of longitudinal mounting bracket 42 is identical with vertical mounting bracket 41 with connected mode, does not repeat them here.
During installation during wheel hop measuring device, first wheel shaft extension fixture 30 is fixed on wheel 10, then, vertical LVDT sensor 21 and longitudinal LVDT sensor 22 are fixed on wheel shaft extension fixture 30, then vertical LVDT sensor 21 and longitudinal LVDT sensor 22 are connected with vertical mounting bracket 41 and longitudinal mounting bracket 42 respectively, finally adjust the position of vertical mounting bracket 41 and longitudinal mounting bracket 42, make vertical LVDT sensor 21 mutually vertical with longitudinal LVDT sensor 22, AB glue is finally utilized to be fixed on vehicle body 50 by vertical mounting bracket 41 and longitudinal mounting bracket 42, and connect vertical LVDT sensor 21 by transmission line, longitudinal LVDT sensor 22 and signal processor.After being installed by wheel hop measuring device, vertical and longitudinal wheel 10 jerk value travelled on by vehicle when different road surface can travel vehicle is measured.
It should be noted that, mounting bracket 40 is not limited to the shape in above-described embodiment, as long as can connect vehicle body and vertical and longitudinal LVDT sensor 21,22.Adaptation dish 32 in the utility model is also not limited to be connected with extending shaft 31, also can relatively rotate between them.
As shown in Figure 6, in another embodiment of the present utility model, be provided with two bearings 35 between extending shaft 31 and adaptive dish 32, and the radial direction of wheel shaft extension fixture 30 is provided with the perforation 36 be connected with bearing 35.During installation, first bearing 35 can be sheathed on the periphery of extending shaft 31, then the extending shaft 31 packaging bearing 35 to be inserted in fixed orifice set on adaptive dish 32 37, then in perforation 36, be screwed into bolt (not shown), bearing 35 be fixed to extending shaft 31 and adaptively coil between 32.
In sum, wheel hop measuring device provided by the utility model, owing to have employed highly sensitive, that measurement range is wide, reproducible LVDT sensor, and accurately can measure the jerk value of wheel.And, because wheel hop measuring device of the present utility model is fixed on wheel by wheel shaft extension fixture, what make wheel shaft extension fixture at least partially can with rotation of wheel, thus the measurement of wheel hop amount can be carried out in the driving process of vehicle, make measurement result more meet the practical operation situation of vehicle, improve measuring accuracy.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a wheel hop measuring device, it is characterized in that: described wheel hop measuring device comprises wheel shaft extension fixture, vertical LVDT sensor, longitudinal LVDT sensor, vertical mounting bracket and longitudinal mounting bracket, described vertical mounting bracket and described longitudinal mounting bracket are fixed on vehicle body, on the wheel shaft that described wheel shaft extension fixture is fixed on described wheel and it at least partially can with described vehicle wheel rotation, described vertical LVDT sensor setting is between described vertical mounting bracket and described wheel shaft extension fixture, described longitudinal LVDT sensor setting is between described longitudinal mounting bracket and described wheel shaft extension fixture.
2. wheel hop measuring device according to claim 1, it is characterized in that: the two ends of described vertical LVDT sensor and described longitudinal LVDT sensor are respectively provided with a bar portion bearing, described vertical LVDT sensor and described longitudinal LVDT sensor are by being fixed on the free end of described wheel shaft extension fixture through the retaining element of described bar portion bearing.
3. wheel hop measuring device according to claim 1, it is characterized in that: described wheel shaft extension fixture comprises adaptive dish and is located at the extending shaft on described adaptation dish, described adaptation dish is fixed on described wheel, and the free end of described extending shaft is connected with described vertical LVDT sensor and described longitudinal LVDT sensor.
4. wheel hop measuring device according to claim 3, it is characterized in that: described adaptation dish has a fixed part near one end of described wheel, the inside of described fixed part is provided with the axis hole supplying the wheel shaft of described wheel to penetrate, and the outer peripheral face of the free end of described fixed part caves inward and forms a shaft shoulder portion, described fixed part is sticked between the semiaxis erection bolt of wheel and the hub bearing of wheel by described axis hole and described shaft shoulder portion.
5. wheel hop measuring device according to claim 3, it is characterized in that: described wheel is provided with boss bolt, the end of described boss bolt has threaded hole, described adaptation dish offers the through hole corresponding with described boss bolt, and described wheel shaft extension fixture is screwed into described threaded hole bolt by the through hole through described adaptation dish is fixed on described wheel.
6. wheel hop measuring device according to claim 5, is characterized in that: the through hole on described adaptation dish is the circular port or the bar hole that are uniformly distributed in adaptive dish circumference.
7. wheel hop measuring device according to claim 3, is characterized in that: described extending shaft and described adaptation are coiled and be fixed as one, and along with the rotation of described wheel is relative to described vertical LVDT sensor and described longitudinal LVDT sensor rotation.
8. wheel hop measuring device according to claim 3, it is characterized in that: described extending shaft and described adaptation are provided with bearing between coiling, the radial direction of described wheel shaft extension fixture is provided with the perforation be connected with described bearing, described bearing is fixed between described extending shaft and described adaptation coil by the bolt being screwed into described perforation, and described vertical LVDT sensor and described longitudinal LVDT sensor are secured by bolts in the free end of described extending shaft.
9. wheel hop measuring device according to claim 1, it is characterized in that: described vertical mounting bracket and described longitudinal mounting bracket respectively comprise the first relative web joint and the second web joint and the connection transverse slat between the first web joint and the second web joint, described first web joint is provided with the connecting hole for connecting vertical LVDT sensor or longitudinal LVDT sensor, and described second web joint is fixed on described vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674884.4U CN204359262U (en) | 2014-11-12 | 2014-11-12 | A kind of wheel hop measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674884.4U CN204359262U (en) | 2014-11-12 | 2014-11-12 | A kind of wheel hop measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN204359262U true CN204359262U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420674884.4U Active CN204359262U (en) | 2014-11-12 | 2014-11-12 | A kind of wheel hop measuring device |
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| CN (1) | CN204359262U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225716A (en) * | 2016-08-29 | 2016-12-14 | 南京理工大学 | One falls wheel non-roundness measurement apparatus and method |
| CN110763173A (en) * | 2019-10-31 | 2020-02-07 | 重庆长安汽车股份有限公司 | Device for measuring Z-direction displacement of wheel during dynamic running of vehicle |
| CN111959642A (en) * | 2020-07-10 | 2020-11-20 | 东风汽车底盘系统有限公司 | Method for assembling wheel assembly and whole vehicle axle |
| CN112097643A (en) * | 2020-08-14 | 2020-12-18 | 中国第一汽车股份有限公司 | Bench test displacement measurement fixing system |
-
2014
- 2014-11-12 CN CN201420674884.4U patent/CN204359262U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225716A (en) * | 2016-08-29 | 2016-12-14 | 南京理工大学 | One falls wheel non-roundness measurement apparatus and method |
| CN110763173A (en) * | 2019-10-31 | 2020-02-07 | 重庆长安汽车股份有限公司 | Device for measuring Z-direction displacement of wheel during dynamic running of vehicle |
| CN110763173B (en) * | 2019-10-31 | 2021-08-06 | 重庆长安汽车股份有限公司 | Device for measuring Z-direction displacement of wheel during dynamic running of vehicle |
| CN111959642A (en) * | 2020-07-10 | 2020-11-20 | 东风汽车底盘系统有限公司 | Method for assembling wheel assembly and whole vehicle axle |
| CN112097643A (en) * | 2020-08-14 | 2020-12-18 | 中国第一汽车股份有限公司 | Bench test displacement measurement fixing system |
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