CN111024023A

CN111024023A - Vehicle front wheel steering angle testing device

Info

Publication number: CN111024023A
Application number: CN201911301750.1A
Authority: CN
Inventors: 潘少猷; 冯浩; 李威; 张培锋
Original assignee: Academy Of Forensic Science
Current assignee: Academy Of Forensic Science
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-04-17

Abstract

The invention relates to a vehicle front wheel corner testing device. The vehicle front wheel steering angle testing device comprises a first flange, a second flange and a third flange, wherein the first flange is fixed on the end surface of the outer side of a wheel hub of a vehicle front wheel; the flange shaft is horizontally arranged, and one end of the flange shaft is vertically fixed at the central position of the first flange; the angle encoder is fixedly arranged at the other end of the flange shaft, and an output shaft of the angle encoder is vertical to the horizontal plane; the first movable rod assembly comprises a first movable joint and a first movable rod, one side of the first movable joint is fastened on the output shaft, and the other side of the first movable joint is in running fit with one end of the first movable rod; and the second movable rod assembly comprises a second movable joint and a second movable rod, one side of the first movable joint is fastened at the other end of the first movable rod, and the other side of the first movable joint is in running fit with one end of the second movable rod. The invention provides a vehicle front wheel corner testing device which is convenient to install and good in testing effect.

Description

Vehicle front wheel steering angle testing device

Technical Field

The invention relates to the technical field of testing of motor vehicles, in particular to a device for testing a front wheel corner of a vehicle.

Background

With the increase of the requirements of consumers on automobile products, the attention of host computer factories to the subjective evaluation of consumers becomes an indispensable requirement, and the requirements on research and development tests of the steering angle of the wheels are continuously increased. Vehicle steering angles are also increasing and expanding continuously for testing methods and content.

Although the foreign test system has similar functions, the test is that a plurality of encoders form a steering angle under the dynamic condition of a test vehicle, and the device can only be adapted to small passenger vehicles and cannot cover the test of commercial vehicles or trucks.

A steering wheel is used by a supplier in China, and a front wheel of a vehicle is stopped on the steering wheel to perform a steering angle test. However, this type of device can only be used for vehicles with driving ability, is not suitable for vehicles with driving ability lost, and only tests for a single vehicle type.

In summary, there is an urgent need to develop a vehicle wheel steering test device in the market.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a vehicle front wheel corner testing device which is compact in structure, convenient for dynamic or static testing and good in testing effect.

Specifically, the invention provides a vehicle front wheel rotation angle testing device, which comprises:

a first flange fixed to an outer end surface of a hub of the front wheel of the vehicle;

the flange shaft is horizontally arranged, and one end of the flange shaft is vertically fixed at the central position of the first flange;

the angle encoder is fixedly arranged at the other end of the flange shaft, and an output shaft of the angle encoder is vertical to the horizontal plane;

the first movable rod assembly comprises a first movable joint and a first movable rod, one side of the first movable joint is fastened on the output shaft, and the other side of the first movable joint is in running fit with one end of the first movable rod;

the second movable rod assembly comprises a second movable joint and a second movable rod, one side of the first movable joint is fastened to the other end of the first movable rod, and the other side of the first movable joint is in running fit with one end of the second movable rod;

the third movable rod assembly comprises a third movable joint and a third movable rod, one side of the third movable joint is fastened at one end of the third movable rod, and the other side of the third movable joint is in running fit with the other end of the second movable rod;

and the sucking disc is fixed at the other end of the third movable rod and fixedly adsorbed on the body of the vehicle.

According to an embodiment of the invention, the hub further comprises a second flange and a plurality of steel wires, the center of the second flange is fixed on the flange shaft, the first flange and the second flange are arranged in parallel, one end of each steel wire is fixed on the edge of the second flange, and the other end of each steel wire is fixed on the waist hole of the hub.

According to one embodiment of the invention, a plurality of said steel wires are evenly distributed at the outer edge of said second flange.

According to an embodiment of the invention, the device further comprises a fixing plate for fixedly mounting the angle encoder, and the fixing plate is rotatably matched with the other end of the flange shaft.

According to an embodiment of the present invention, the first movable rod assembly further includes a first movable pin and a first fixed seat, the first fixed seat is fixed on the first movable joint through the first movable pin, the first fixed seat can rotate relative to the first movable joint, and the first movable rod is in rotating fit with the first fixed seat.

According to an embodiment of the present invention, the second movable rod assembly further includes a second movable pin and a second fixed seat, the second fixed seat is fixed to the second movable joint through the second movable pin, the second fixed seat can rotate relative to the second movable joint, and the second movable rod is in rotating fit with the second fixed seat.

According to an embodiment of the present invention, the third movable rod assembly further includes a third movable pin and a third fixed seat, the third fixed seat is fixed to the third movable joint through the third movable pin, the third fixed seat can rotate relative to the third movable joint, and the other end of the second movable rod is in rotating fit with the third fixed seat.

According to an embodiment of the present invention, the clamping device further comprises a clamping member and a clamping screw, wherein one side of the clamping member is fixedly connected with the suction cup, the other side of the clamping member is fixedly connected with the other end of the third movable rod, and the clamping screw is matched with the clamping member so that the clamping member clamps the suction cup and the third movable rod.

According to one embodiment of the invention, the first movable bar is perpendicular to a horizontal plane.

According to one embodiment of the present invention, the third movable bar is horizontally disposed and perpendicular to the second and third movable bars.

The vehicle front wheel corner testing device provided by the invention is compact in structure, convenient to install and good in testing effect.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 is a schematic structural diagram showing a vehicle front wheel rotation angle testing device according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a vehicle front wheel rotation angle testing device according to an embodiment of the invention.

Wherein the figures include the following reference numerals:

first flange 101 of vehicle front wheel steering angle testing device 100

Flange shaft 102 angle encoder 103

First movable bar assembly 104 and second movable bar assembly 105

Third movable rod assembly 106 suction cup 107

Front wheel 108 output shaft 109

First movable joint 110 first movable rod 111

Second Movable Joint 112 second Movable Lever 113

Third Movable Joint 114 third Movable Lever 115

Second flange 116 steel wire 117

Waist hole 118 fixing plate 119

First movable pin 120 and first fixed seat 121

Second movable pin 122 and second fixed seat 123

Third movable pin 124 and third fixed seat 125

Clamp member 126 clamp screw 127

Extension bar 128

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Fig. 1 is a schematic structural diagram showing a vehicle front wheel rotation angle testing device according to an embodiment of the invention. Fig. 2 is a schematic structural diagram of a vehicle front wheel rotation angle testing device according to an embodiment of the invention. Fig. 1 and 2 show a vehicle front wheel rotation angle testing device 100 provided by the present invention from different angles only, so as to describe the connection relationship between the components thereof in conjunction with the following text. As shown in the figure, a vehicle front wheel rotation angle testing apparatus 100 mainly includes a first flange 101, a flange shaft 102, an angle encoder 103, a first movable rod assembly 104, a second movable rod assembly 105, a third movable rod assembly 106, and a suction cup 107.

The first flange 101 is fixed to a hub outer end surface of a front wheel 108 of the vehicle, and the first flange 101 is perpendicular to a horizontal plane. Conventionally, the first flange 101 is fixed to an end face of a tire hub of a passenger vehicle, and the first flange 101 is fixed by a fixing bolt of the hub.

The flange shaft 102 is horizontally disposed, and one end of the flange shaft 102 is vertically fixed to the center of the first flange 101.

The angle encoder 103 is used to measure the angle of rotation of the front wheels 108 of the vehicle as they follow the steering wheel. The angle encoder 103 is fixedly disposed at the other end of the flange shaft 102, and an output shaft 109 of the angle encoder 103 is perpendicular to the horizontal plane.

The first movable bar assembly 104 includes a first movable joint 110 and a first movable bar 111, and one side of the first movable joint 110 is fastened to the output shaft 109. The other side of the first movable joint is rotatably engaged with one end of the first movable rod 111.

The second movable bar assembly 105 includes a second movable joint 112 and a second movable bar 113. One side of the second movable joint 112 is fastened to the other end of the first movable bar 111, and the other side of the second movable joint 112 is rotatably engaged with one end of the second movable bar 113.

Third movable bar assembly 106 includes a third movable joint 114 and a third movable bar 115. One side of the third movable joint 114 is fastened to one end of the third movable bar 115, and the other side of the third movable joint 114 is rotatably fitted to the other end of the second movable bar 113.

The suction cup 107 is fixed to the other end of the third movable bar 115, and the suction cup 107 is fixedly attached to the body of the vehicle. Optionally, the suction cup 107 is of a vacuum type and can be firmly attached to the front door of the vehicle to ensure that the initial value of the suction cup is unchanged during the tire rotation angle test.

When the vehicle steering wheel turns, the front wheel 108 rotates along with the front wheel in the horizontal direction, the first flange 101 and the flange shaft 102 are driven to deflect, and the angle encoder 103 can rotate relative to the output shaft 109, so that the rotation angle of the front wheel 108 is measured. First movable rod assembly 104, second movable rod assembly 105 and third movable rod assembly 106 correspond to three rotational joints to accommodate the change in position of flange shaft 102 and angle encoder 103, ensuring that the initial position of suction cup 107 and third movable rod 115 relative to front wheel 108 is unchanged to obtain an accurate angular rotation measurement.

Preferably, the vehicle front wheel steering angle testing apparatus 100 further includes a second flange 116 and a plurality of wires 117. This configuration is more suitable for the corner test of the front wheel 108 of a truck. Specifically, the center of the second flange 116 is fixed on the flange shaft 102, and the first flange 101 is disposed parallel to the second flange 116, that is, the first flange 101 and the second flange 116 are coaxial and can rotate synchronously, and the second flange 116 is used for expanding the first flange 101. Each wire 117 is fixed at one end to the edge of the second flange 116 and at the other end to a kidney hole 118 of the vehicle hub. The tension of each wire 117 is adjusted to keep the flange shaft 102 in a horizontal direction at all times. Optionally, the radius of the second flange 116 is smaller than the radius of the first flange 101, so as to facilitate the integral assembly and debugging. Optionally, the length and number of the steel wires 117 are adjustable. Preferably, a plurality of steel wires 117 are uniformly distributed on the outer edge of the second flange 116, so that the tension of each steel wire 117 is equal, the horizontal position of the flange shaft 102 is ensured, and the accuracy of the whole test is improved.

Preferably, the device 100 for testing the front wheel steering angle of a vehicle further includes a fixing plate 119 for fixedly mounting the angle encoder 103, the fixing plate 119 is rotatably engaged with the other end of the flange shaft 102, and the output shaft 109 of the angle encoder 103 is perpendicular to the flange shaft 102.

Preferably, the first movable rod assembly 104 further includes a first movable pin 120 and a first fixed seat 121. The first fixing base 121 is fixed on the first movable joint 110 by the first movable pin 120, so that the first fixing base 121 can rotate relative to the first movable joint 110. The first movable rod 111 is inserted into the first fixing seat 121, and the first movable rod 111 and the first fixing seat 121 are rotatably matched with each other, so that the first movable rod 111 can rotate 360 degrees relative to the first fixing seat 121.

Preferably, the second movable rod assembly 105 further includes a second movable pin 122 and a second fixed seat 123. The second fixing base 123 is fixed on the second movable joint 112 through the second movable pin 122, so that the second fixing base 123 can rotate relative to the second movable joint 112. The second movable rod 113 is inserted into the second fixing base 123, and the second movable rod 113 and the second fixing base 123 are in rotating fit, so that the second movable rod 113 can rotate 360 degrees relative to the second fixing base 123.

Preferably, the third movable rod assembly 106 further includes a third movable pin 124 and a third fixed seat 125. The third fixed seat 125 is fixed on the third movable joint 114 by a third movable pin 124, so that the third fixed seat 125 can rotate relative to the third movable joint 114. The other end of the second movable rod 113 is inserted into the third fixed seat 125, and the second movable rod 113 and the third fixed seat 125 are in rotating fit, and the second movable rod 113 can rotate around 360 degrees relative to the third fixed seat 125.

It should be noted that rolling bearings are installed in the first movable rod assembly 104, the second movable rod assembly 105 and the third movable rod assembly 106, so as to reduce the test influence caused by friction force during rotational matching as much as possible.

Preferably, the vehicle front wheel steering angle testing apparatus 100 further includes a clip member 126 and a clip screw 127. One side of the clip member 126 is fixedly connected to the extension bar 128 of the suction cup 107, and the other side of the clip member 126 is fixedly connected to the other end of the third movable bar 115. A clamp screw 127 cooperates with the clamp member 126 to cause the clamp member 126 to clamp the suction cup 107 and the third movable bar 115. The initial position of the suction cup 107 and the third movable bar 115 relative to the front wheel 108 remains constant throughout the test.

Preferably, the first movable bar 111 is always perpendicular to the horizontal plane.

Preferably, the third movable bar 115 is horizontally disposed and is always perpendicular to the second movable bar 113 and the third movable bar 115.

In the actual installation process of the vehicle front wheel steering angle testing device 100, the suction cup 107 is fixedly adsorbed on the front door of the vehicle at a proper position, so that the other parts have enough adjusting distance when being installed. The fixed plate 119 is movable forward and backward along the flange shaft 102 to compensate for the forward and backward position. The first movable joint 110 locks the output shaft 109 after adjusting the up-down position of the output shaft 109 of the angle encoder 103. The forward and backward positions of the third movable joint 114 on the third movable bar 115 are adjusted. The extension bar 128 of the suction cup 107 is rotatably engaged with the clip member 126, and the clip member 126 fixes the third movable bar 115 and the extension bar 128 of the suction cup 107 after adjusting the front and rear positions on the third movable bar 115. During the test, the vehicle tires are rotated with the steering wheel, the angle of rotation is read by the angle encoder 103, and the angle encoder 103 can be connected to a computer, PAD or mobile phone in a wired or wireless manner for recording and real-time comparison.

The vehicle front wheel steering angle testing device 100 provided by the invention has the following advantages:

1. compact structure, flexible, convenient and simple installation.

2. Compared with a foreign corner detection system, the cost is greatly reduced.

3. The method is suitable for detecting various vehicle types including large engineering vehicle types.

4. The method can be applied to static test or dynamic test of the vehicle.

5. In the test process, the displacement posture conditions of the wheels and the vehicle body in three directions are considered, and meanwhile, the inclination angle condition of the wheels relative to the vehicle body is considered, so that the accuracy of the test precision is guaranteed.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. Vehicle front wheel corner testing arrangement includes:

2. The vehicle front wheel rotation angle testing device according to claim 1, further comprising a second flange and a plurality of steel wires, wherein the center of the second flange is fixed on the flange shaft, the first flange is arranged in parallel with the second flange, and one end of each steel wire is fixed on the edge of the second flange, and the other end of each steel wire is fixed on the waist hole of the hub.

3. The vehicle front wheel rotation angle testing device according to claim 2, wherein a plurality of the steel wires are uniformly distributed on an outer edge of the second flange.

4. The vehicle front wheel rotation angle testing device according to claim 1, further comprising a fixing plate for fixedly mounting the angle encoder, the fixing plate being rotatably fitted to the other end of the flange shaft.

5. The vehicle front wheel rotation angle testing device according to claim 1, wherein the first movable rod assembly further comprises a first movable pin and a first fixed seat, the first fixed seat is fixed on the first movable joint through the first movable pin, the first fixed seat can rotate relative to the first movable joint, and the first movable rod is rotatably engaged with the first fixed seat.

6. The vehicle front wheel rotation angle testing device according to claim 1, wherein the second movable rod assembly further comprises a second movable pin and a second fixed seat, the second fixed seat is fixed on the second movable joint through the second movable pin, the second fixed seat can rotate relative to the second movable joint, and the second movable rod is rotatably engaged with the second fixed seat.

7. The vehicle front wheel rotation angle testing device according to claim 1, wherein the third movable rod assembly further comprises a third movable pin and a third fixed seat, the third fixed seat is fixed on the third movable joint through the third movable pin, the third fixed seat can rotate relative to the third movable joint, and the other end of the second movable rod is rotatably engaged with the third fixed seat.

8. The vehicle front wheel rotation angle testing device according to claim 1, further comprising a clamping member and a clamping screw, wherein one side of the clamping member is fixedly connected with the suction cup, and the other side of the clamping member is fixedly connected with the other end of the third movable rod, and the clamping screw is matched with the clamping member so that the clamping member clamps the suction cup and the third movable rod.

9. The vehicle front wheel rotation angle testing device according to claim 1, wherein the first movable bar is perpendicular to a horizontal plane.

10. The vehicle front wheel rotation angle testing device according to claim 1, wherein the third movable bar is disposed horizontally and perpendicular to the second and third movable bars.