CN111959642B - Method for assembling wheel assembly and whole vehicle axle - Google Patents

Method for assembling wheel assembly and whole vehicle axle Download PDF

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Publication number
CN111959642B
CN111959642B CN202010664487.9A CN202010664487A CN111959642B CN 111959642 B CN111959642 B CN 111959642B CN 202010664487 A CN202010664487 A CN 202010664487A CN 111959642 B CN111959642 B CN 111959642B
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China
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wheel assembly
wheel
whole vehicle
radial run
axle
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CN111959642A (en
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胡飞
潘小雨
彭峻
王峰
余海洋
杨荣
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Dongfeng Motor Chassis Systems Co Ltd
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Dongfeng Motor Chassis Systems Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/12—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being suspensions, brakes or wheel units

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

The invention provides a method for assembling a wheel assembly and a whole vehicle axle, which solves the problems that the wheel assembly is arranged on the whole vehicle axle in the prior art, the radial run-out fluctuation of the whole vehicle wheel assembly is larger in the running process of the whole vehicle due to the assembly tolerance and the radial run-out of the wheel assembly, and the final problems of the whole vehicle such as the shake of a steering wheel, the wheel deviation and the poor NVH performance are caused, and comprises the following steps: s1, acquiring radial run-out data of the wheel assembly to be mounted in the rotating process; s2, extracting the angle corresponding to the highest point of the average radial run-out amplitude curve of the wheel assembly from the obtained run-out data of the wheel assembly; s3, acquiring the position of the radial runout peak of the wheel assembly according to the angle corresponding to the peak of the extracted average radial runout amplitude curve of the wheel assembly; and S4, matching and assembling the wheel assembly and the axle of the whole vehicle, and simultaneously ensuring that the highest radial run-out point of the wheel assembly is always at the highest point of the wheel assembly, which is vertical to the ground, in the assembling process.

Description

Method for assembling wheel assembly and whole vehicle axle
Technical Field
The invention relates to the technical field of automobile part assembly, in particular to a method for assembling a wheel assembly and a whole automobile axle.
Background
In the whole vehicle assembly technology, the machining size of a central hole of a wheel assembly is A (+ d/0), the machining size of an axle matched with the wheel assembly on a whole vehicle is A (0/-d), when the wheel assembly is assembled on the axle of the whole vehicle, the wheel assembly is in contact with the highest point of the axle of the whole vehicle, which is vertical to the ground, under the action of gravity, a gap with the distance of 2d is generated at the lowest point, meanwhile, the radial runout of the wheel assembly is generated due to the nonuniformity of the wheel assembly, and when the highest point H of the radial runout of the wheel assembly is positioned at the lowest point of the axle of the wheel assembly, which is matched and assembled with the axle of the whole vehicle, the wheel assembly of the whole vehicle generates the maximum runout delta1+2d, as shown in fig. 1-3, the problem of vehicle vibration, deviation or poor NVH performance is more likely to occur during the running process of the vehicle.
In the prior art, the wheel assembly and the whole vehicle are assembled in the following manner: the light points of the wheel assemblies are matched with the key points of the brake drum for assembly, however, the mounting mode can only reduce the uneven quality of the wheel assemblies in the rotating process, and the wheel assembly jumping on the whole vehicle cannot be reduced.
Disclosure of Invention
The invention provides a method for assembling a wheel assembly and a whole vehicle axle, which solves the problems of large radial run-out fluctuation of the whole vehicle wheel assembly caused by assembly tolerance and run-out of the wheel assembly, and finally poor performances of a whole vehicle steering wheel jitter, wheel deviation and NVH (noise, vibration and harshness) when the wheel assembly is installed on the whole vehicle axle in the prior art.
The technical scheme of the invention is as follows: the method comprises the following steps:
s1, acquiring radial run-out data of the wheel assembly to be mounted in the rotating process;
s2, processing the obtained wheel assembly jumping data, and extracting an angle corresponding to the highest point of the average radial jumping amplitude curve of the wheel assembly;
s3, acquiring the position of the highest point of radial run-out on the wheel assembly according to the angle corresponding to the highest point of the extracted average radial run-out amplitude curve of the wheel assembly;
and S4, matching and assembling the wheel assembly and the axle of the whole vehicle, and simultaneously ensuring that the highest radial run-out point of the wheel assembly is always at the highest point of the wheel assembly, which is vertical to the ground, in the assembling process.
Preferably, in step S1, the method for acquiring the radial run-out data during the rotation of the wheel assembly to be mounted comprises: the method for acquiring the radial run-out data of the wheel assembly to be mounted for one rotation comprises the following steps:
s11, placing the wheel assembly on a wheel runout and harmonic detection line, and enabling the wheel assembly and a rotation central shaft of detection equipment to be coaxial by adjusting a conical surface central shaft on the wheel runout and harmonic detection line;
s12, adjusting the detection head of the wheel runout and harmonic detection line to enable the detection head to be in contact with the side face of the tire of the wheel assembly, starting the wheel runout and harmonic detection line to enable the wheel assembly to rotate, and collecting radial run-out data of the wheel assembly in real time.
Preferably, in step S2, a polynomial fitting process is performed on the acquired wheel assembly run-out data four times to obtain a wheel assembly average radial run-out amplitude curve.
Preferably, in step S4, the method for fitting the wheel assembly with the axle of the whole vehicle while ensuring that the highest radial runout position of the wheel assembly is always at the highest vertical ground point of the wheel assembly during fitting includes the following steps:
s41, placing the wheel assembly perpendicular to the ground;
s42, adjusting the angle of the wheel assembly to make the radial run-out highest point position at the highest point of the wheel assembly;
and S43, adjusting the angle of a bolt for fixing the wheel assembly on the axle of the whole vehicle, and matching the bolt with a bolt hole of the wheel assembly for assembly.
The beneficial effect of above-mentioned scheme lies in: the invention extracts the high point of the average radial run-out fluctuation in the rotation process of the wheel assembly to be mounted, and correspondingly mounts the high point and the whole vehicle axle, so that the run-out generated by the wheel assembly and the run-out generated by the assembly tolerance of the wheel assembly and the whole vehicle axle are counteracted to the maximum extent in the assembly process of the wheel assembly and the whole vehicle axle, the problems of the whole vehicle such as jitter, deviation or poor NVH performance are reduced, the smoothness of the whole vehicle and the straight running performance of the whole vehicle are finally improved, and the fatigue coefficient of a driver is reduced.
Drawings
FIG. 1 is a schematic diagram of the maximum run-out due to assembly tolerances of a wheel assembly and a vehicle axle in the prior art.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of a portion B in fig. 1.
FIG. 4 is a schematic view of a wheel assembly being placed on a wheel runout and harmonic detection line.
FIG. 5 is a graph of a wheel assembly mean radial run out fit. In the figure,. DELTA.1The run-out value is the run-out value corresponding to the highest radial run-out point H of the wheel assembly.
FIG. 6 is a schematic view of the wheel assembly at the highest radial runout point.
FIG. 7 is a schematic illustration of the assembly of a wheel assembly and a vehicle axle using the method of the present invention.
Fig. 8 is a partially enlarged view of C in fig. 7.
Fig. 9 is a partially enlarged view of fig. 7 at D.
Detailed Description
Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
The embodiment provides a method for assembling a wheel assembly and a whole vehicle axle, and solves the problems that in the prior art, when a wheel assembly 3 is installed on a whole vehicle axle 4, the radial run-out fluctuation of the whole vehicle wheel assembly caused by assembly tolerance is large, and finally, the whole vehicle steering wheel jitter, the wheel deviation and the NVH performance are poor. The method comprises the following steps:
s1, acquiring radial run-out data of the wheel assembly to be mounted in the rotating process;
s2, processing the obtained wheel assembly jumping data, and extracting an angle theta corresponding to the highest point of the average radial jumping amplitude curve of the wheel assembly;
s3, obtaining the position H of the radial runout peak of the wheel assembly according to the angle corresponding to the peak of the extracted average radial runout amplitude curve of the wheel assembly;
and S4, matching and assembling the wheel assembly and the axle of the whole vehicle, and simultaneously ensuring that the highest radial run-out point of the wheel assembly is always at the highest point of the wheel assembly, which is vertical to the ground, in the assembling process.
In step S1, the method for acquiring the radial run-out data of the wheel assembly to be mounted during rotation includes: the method for acquiring the radial run-out data of the wheel assembly to be mounted for one rotation comprises the following steps:
s11, placing the wheel assembly on the wheel runout difference and harmonic detection line 1, and enabling the wheel assembly and the rotation central shaft of the detection equipment to be coaxial by adjusting the conical surface central shaft on the wheel runout difference and harmonic detection line 1;
s12, adjusting the detection head 2 of the wheel runout and harmonic detection line 1 to enable the detection head to be in contact with the side face of the tire of the wheel assembly, starting the wheel runout and harmonic detection line, enabling the wheel assembly to rotate, and collecting radial run-out data of the wheel assembly in real time.
In step S2, a polynomial fourth-order fitting process is performed on the acquired wheel assembly run-out data to obtain a wheel assembly average radial run-out amplitude curve.
In the step 4, the method for assembling the wheel assembly and the whole vehicle axle in a matched manner and simultaneously ensuring that the radial run-out highest point of the wheel assembly is always positioned at the highest point of the wheel assembly, which is vertical to the ground, in the assembling process comprises the following steps:
s41, placing the wheel assembly perpendicular to the ground;
s42, adjusting the angle of the wheel assembly to make the radial run-out highest point position at the highest point of the wheel assembly;
and S43, adjusting the angle of a bolt for fixing the wheel assembly on the axle of the whole vehicle, and matching the bolt with a bolt hole of the wheel assembly for assembly.
By adopting the technical scheme, the radial run-out data of the wheel assembly to be mounted in the rotating process is extracted, data fitting is carried out through a polynomial, an average radial run-out amplitude curve is extracted, the highest point of the average radial run-out of the wheel assembly is obtained, and the highest point is correspondingly installed with the axle of the whole vehicle, so that the maximum radial run-out delta of the wheel assembly is enabled to be in the assembling process of the wheel assembly and the axle of the whole vehicle1And the run-out 2d generated by the assembly tolerance of the wheel assembly and the whole vehicle axle are counteracted with each other to the maximum extent, and after the final wheel assembly is assembled on the whole vehicle axle, the run-out of the wheel assembly is delta1And 2d, as shown in fig. 7-9, so that the problems of shaking and deviation of the whole automobile or poor NVH performance in the driving process of the automobile are solved, the smoothness of the whole automobile and the straight-line driving performance of the whole automobile are improved, and the fatigue coefficient of a driver is reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A method for assembling a wheel assembly and a finished vehicle axle is characterized by comprising the following steps:
s1, acquiring radial run-out data of the wheel assembly to be mounted in the rotating process;
s2, processing the obtained wheel assembly radial run-out data, and extracting an angle corresponding to the highest point of the wheel assembly average radial run-out amplitude curve;
s3, acquiring the position of the highest point of radial run-out on the wheel assembly according to the angle corresponding to the highest point of the extracted average radial run-out amplitude curve of the wheel assembly;
and S4, matching and assembling the wheel assembly and the axle of the whole vehicle, and simultaneously ensuring that the highest radial run-out point of the wheel assembly is always at the highest point of the wheel assembly, which is vertical to the ground, in the assembling process.
2. The method for assembling a wheel assembly with a complete vehicle axle according to claim 1, wherein: in step S1, the method for obtaining the radial run-out data of the wheel assembly to be mounted during rotation includes: the method for acquiring the radial run-out data of the wheel assembly to be mounted for one rotation comprises the following steps:
s11, placing the wheel assembly on a wheel runout and harmonic detection line, and enabling the wheel assembly and a rotation central shaft of detection equipment to be coaxial by adjusting a conical surface central shaft on the wheel runout and harmonic detection line;
s12, adjusting the detection head of the wheel runout and harmonic detection line to contact with the side face of the tire of the wheel assembly, starting the wheel runout and harmonic detection line to rotate the wheel assembly, and acquiring radial run-out data of the wheel assembly in the rotating process in real time.
3. The method for assembling the wheel assembly with the axle of the whole vehicle according to claim 2, characterized in that: in step S2, a polynomial fourth-order fitting process is performed on the acquired wheel assembly run-out data to obtain a wheel assembly average radial run-out amplitude curve.
4. The method for assembling the wheel assembly and the whole vehicle axle according to claim 3, wherein the method comprises the following steps: in step S4, the method for fitting the wheel assembly with the axle of the entire vehicle while ensuring that the highest radial runout position of the wheel assembly is always at the highest point of the wheel assembly perpendicular to the ground during fitting includes the following steps:
s41, placing the wheel assembly perpendicular to the ground;
s42, adjusting the angle of the wheel assembly to make the radial run-out highest point position at the highest point of the wheel assembly;
and S43, adjusting the angle of a bolt for fixing the wheel assembly on the axle of the whole vehicle, and matching the bolt with a bolt hole of the wheel assembly for assembly.
CN202010664487.9A 2020-07-10 2020-07-10 Method for assembling wheel assembly and whole vehicle axle Active CN111959642B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010664487.9A CN111959642B (en) 2020-07-10 2020-07-10 Method for assembling wheel assembly and whole vehicle axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010664487.9A CN111959642B (en) 2020-07-10 2020-07-10 Method for assembling wheel assembly and whole vehicle axle

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CN111959642A CN111959642A (en) 2020-11-20
CN111959642B true CN111959642B (en) 2021-12-10

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0107158B1 (en) * 2000-10-31 2010-11-16 Tire / wheel assembly mounting method.
US6783188B2 (en) * 2001-10-09 2004-08-31 The Yokohama Rubber Co., Ltd. Method of fitting tire-and-wheel assembled body to axle
US20060091719A1 (en) * 2004-10-29 2006-05-04 Robert Bosch Corporation Wheel hub for a corner assembly
JP4855005B2 (en) * 2005-08-09 2012-01-18 Ｎｔｎ株式会社 Processing method of wheel bearing device
JP5427766B2 (en) * 2010-12-21 2014-02-26 三菱重工業株式会社 Vehicle wheel, traveling wheel, vehicle, and method for assembling and disassembling vehicle wheel
CN203672255U (en) * 2013-11-18 2014-06-25 郑州精益达汽车零部件有限公司 Drum brake radial run-out and linearity comprehensive detecting tool
CN204359262U (en) * 2014-11-12 2015-05-27 广州汽车集团股份有限公司 A kind of wheel hop measuring device

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