Tire corner debugging auxiliary device
Technical Field
The invention belongs to the field of vehicle detection, and particularly relates to a tire corner debugging auxiliary device.
Background
According to the related legal requirements, the maximum tire corner of a large passenger car needs to meet the turning radius requirement, so that the wheel corner needs to be debugged in the whole car production process.
In the prior art, although the four-wheel positioning detection equipment has the function of measuring the rotation angle, after the four-wheel positioning detection items are more and the working procedures are more, a step of manual pre-debugging is generally needed to be added in the former working procedure, and the specific debugging mode is as follows:
1. Lifting left and right wheels by jacks respectively, and placing a corner measuring disc below;
2. the driver controls the steering wheel to rotate to the limit position, and observes the angle reading of the angle measuring disc;
3. and if the readings of the rotation angle measuring disc do not meet the design angle requirements, reworking and adjusting are needed.
This debugging process needs the manpower to use the jack car of lifting, and staff's intensity of labour is great, and it is also more loaded down with trivial details to place the steering wheel, has efficiency improvement space.
Disclosure of Invention
The invention aims to provide a tire corner debugging auxiliary device which is convenient for detecting the corner of a tire.
In order to achieve the above purpose, the specific technical scheme of the tire corner debugging auxiliary device of the invention is as follows:
The tire corner debugging auxiliary device comprises a follow-up rule and a reading mechanism, wherein the follow-up rule is horizontally arranged on a tire and rotates along with the tire, the follow-up rule comprises a rule body arranged along the radial direction of the tire, the reading mechanism comprises an indication disc, a sighting device is rotationally connected to the indication disc and used for aiming the rule body, the sighting device and the rule body are mutually perpendicular, and corner scales are arranged on the indication disc so as to read the rotation angle of the sighting device, namely the rotation angle of the tire.
Furthermore, the ruler body is at least provided with two ruler bodies which are arranged in parallel, and the same positions of all the ruler bodies are aimed through the sighting device, so that the sighting device and the ruler bodies are arranged in mutually perpendicular mode.
Further, the length scales are arranged on the ruler body, and when the scale deviation corresponding to the projection of the light rays on the two ruler bodies is smaller than 2mm, the sighting device and the ruler bodies are arranged vertically.
Further, the sight comprises a laser indicator, and a projection is formed by intersecting the light rays generated by the laser indicator with the ruler body.
Further, the sight further comprises a rotating seat, the rotating seat is rotationally connected to the indicating disc through a vertically arranged rotating shaft, and the laser indicator is rotationally connected to the rotating seat through a horizontally arranged rotating shaft.
Further, the zero scale of the corner scale and the straight tire face the same direction.
Further, the support plate is fixedly connected to the support column, the support column comprises a lower rod and an upper rod, the lower end of the upper rod is sleeved in the lower rod, and the support column stretches and contracts through sliding of the upper rod along the lower rod.
Furthermore, the indicating plate is erected on the supporting plate through the supporting bolt, the supporting bolt is connected with the supporting plate through the bolt and is in rotary connection with the indicating plate, and the indicating plate is provided with a liquid level meter.
The follow-up ruler further comprises a guiding ruler sliding rail fixed on the tire, the first ruler body is connected to the guiding ruler sliding rail in a sliding mode up and down, the first ruler body is connected with a limiting bolt through a bolt, and the first ruler body is abutted to the guiding ruler sliding rail through the limiting bolt to fix the first ruler body.
Further, the root of the ruler body is fixedly connected with an elastic jacking block, and the two elastic jacking blocks are respectively abutted against the rim.
The tire corner debugging auxiliary device has the advantages that the corner measuring operation can be carried out on the outer side of the vehicle, the front axle of the vehicle does not need to be lifted to be placed on an angle measuring disc, the operation process is convenient and efficient, the labor intensity is low, and the danger coefficient is low.
Drawings
FIG. 1 is a schematic diagram of a reading mechanism according to the present invention;
Fig. 2 is a schematic structural view of the follower rule of the present invention.
The figure indicates:
1. A follow-up ruler; 11, a ruler body, 12, a guiding ruler sliding rail, 13, an elastic top block, 2, an indicating disc, 3, a sighting device, 31, a laser indicator, 32, a rotating seat, 4, a supporting plate, 41, a supporting bolt, 5, a supporting column, 6, a supporting seat, 61 and a supporting leg.
Detailed Description
For a better understanding of the objects, structures and functions of the present invention, a tire rotation angle adjustment assisting apparatus according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the tire rotation angle adjustment assisting device of the present invention includes a follow-up rule 1 and a reading mechanism.
The follow-up rule 1 is horizontally installed on the tire and rotates with the tire, and the follow-up rule 1 includes a rule body 11 disposed in the tire radial direction. The reading mechanism comprises an indicating disc 2, wherein the indicating disc 2 is rotatably connected with a sighting device 3, the sighting device 3 is used for aiming at a ruler 11, the sighting device 3 and the ruler 11 are perpendicular to each other, and the indicating disc 2 is provided with corner scales for reading the rotating angle of the sighting device 3. This translates the tire rotation angle into the rotation angle of the sight 3 to facilitate determination of the tire rotation angle.
The sight 3 includes a laser pointer 31 that is projected by the intersection of the light rays occurring with the blade 11 so that the sight 3 and the blade 11 are disposed perpendicular to each other.
The ruler 11 is provided with at least two and mutually flush, the same positions of all the ruler 11 are aimed through the sighting device 3, and the sighting device 3 and the ruler 11 are vertically arranged. The length scales are arranged on the ruler body 11, and when the scale deviation corresponding to the projection of the light rays on the two ruler bodies 11 is smaller than 2mm, the light rays of the laser indicator 31 are identical to the directions of the tires.
For ease of reading, the zero scale of the corner scale and the straight running tire are oriented the same.
The parameter of being convenient for is adjusted, and sight 3 is except that laser indicator 31 still includes rotating seat 32, and rotating seat 32 rotates through the pivot of vertical setting and connects on indicating disk 2, and laser indicator 31 rotates through the pivot of horizontal setting and connects on rotating seat 32.
The reading mechanism further comprises a horizontal adjusting mechanism, the horizontal adjusting mechanism comprises a supporting plate 4, the indicating plate 2 is erected on the supporting plate 4 through a supporting bolt 41, and the supporting bolt 41 is connected with the supporting plate 4 through bolts and is connected with the indicating plate 2 in a rotating mode. And the indicating plate 2 is provided with a liquid level meter, so that according to the position of bubbles of the liquid level meter, three supporting bolts 41 are rotated to adjust the length of the supporting screw screwed into the supporting plate 4 and adjust the levelness of the indicating plate 2.
The supporting plate 4 is fixedly connected to the supporting column 5, the supporting column 5 comprises a lower rod and an upper rod, the lower end of the upper rod is sleeved in the lower rod, and the supporting column 5 stretches and contracts through sliding of the upper rod along the lower rod. The lower rod is in threaded connection with a jackscrew, and the jackscrew penetrates through the lower rod and is in butt joint with the lower rod, so that the upper rod and the lower rod are fixed.
The support column 5 is fixed on the support 6, and support 6 sets up three stabilizer blade 61 of evenly setting, and three stabilizer blade 61 lower extreme toper and threaded connection are on support 6 to the rugged ground state of reply also can assist the leveling of indicator 2.
In order to install the follow-up rule 1 on the tire, the follow-up rule 1 further comprises a guiding rule sliding rail 12 fixed on the tire, the rule body 11 is connected to the guiding rule sliding rail 12 in a sliding mode up and down, the rule body 11 is connected with a limiting bolt in a bolt mode, and the rule body 11 is fixed through the abutting of the limiting bolt and the guiding rule sliding rail 12. The root of the ruler body 11 is fixedly connected with an elastic jacking block 13, and the elastic jacking blocks 13 are respectively abutted against the rim, so that the ruler body is fixed on the rim in a clamping mode. And the guiding rule slide rail 12 is also provided with a liquid level meter so as to ensure that the follow-up rule 1 is horizontally arranged.
The detection method comprises the following steps:
1. The passenger car is parked in a designated area, the front wheels are centered and then the hand brake is pulled up, and the rear wheels are put on the wheel blocks;
2. The reading mechanism is placed beside the car, and the position of the reading mechanism is as close to the car body as possible under the condition of not affecting the moving parts, and the supporting bolt 41 is adjusted to balance the indicating disc 2 according to the prompt of the liquid level meter on the reading mechanism;
3. The laser indicator 31 is electrified, and the laser lamp cap is rotated to enable the straight line light to irradiate forward perpendicular to the horizontal line;
4. The follow-up rule 1 is hung on a tire, the distance between two rule bodies 11 is adjusted to enable an elastic jacking block 13 to tighten the rim, and the fixing is completed after the adjustment of the level is carried out according to the prompt of a liquid level meter on the elastic jacking block, at the moment, the light rays of the laser indicator 31 intersect with the rule bodies 11 to form projection, the laser projection scales of the two rule bodies 11 are observed, and when the scale deviation is smaller than 2mm, the laser and the tire direction can be judged to be parallel;
5. The laser direction (40 degrees for example) on the auxiliary device is adjusted according to the design requirement, the tire can be controlled to turn after the adjustment, when the scale deviation of the guiding ruler 11 is smaller than 2mm again, the direction of the tire can be considered to be parallel to the direction of the laser indicator 31 again, and the turning angle of the tire reaches the design requirement at the moment, and the adjustment of the turning angle of the tire is completed.
It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.