CN216348517U

CN216348517U - Large-angle steering floating disc mechanism for four-wheel positioning instrument

Info

Publication number: CN216348517U
Application number: CN202122797259.1U
Authority: CN
Inventors: 林勇; 张尧; 王江涛; 王光磊
Original assignee: Shandong Kerixin Testing Technology Co ltd
Current assignee: Shandong Kerixin Testing Technology Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-19
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses the technical field of the rotation of a floating disc of a four-wheel aligner, and discloses a large-angle steering floating disc mechanism for the four-wheel aligner, which comprises an installation main frame, a coder arranged at the bottom end of the installation main frame, and a floating disc arranged at the top end of the installation main frame, wherein the center of the floating disc is fixedly connected with an input shaft of the coder; when the floating disc rotates, one of the spiral springs is stretched, the other spiral spring is compressed, and after measurement, the two spiral springs provide two acting forces to enable the floating disc to accurately return to the initial position, so that the accuracy of returning the floating disc to the initial position is ensured.

Description

Large-angle steering floating disc mechanism for four-wheel positioning instrument

Technical Field

The utility model relates to the technical field of four-wheel aligner floating disc rotation, in particular to a large-angle steering floating disc mechanism for a four-wheel aligner.

Background

At present, the non-contact four-wheel aligner is commonly used by domestic automobile factories to detect produced vehicles, the floating disc is a key component of the four-wheel aligner, and the floating disc has the characteristics of small friction and stable floating and can realize higher detection precision.

A non-contact four-wheel aligner has four sets of floating disks, each set of floating disk contains a set of positioning and locking device for assisting the tire to return to the central position for aligning and assisting the vehicle to drive in and out. The maximum steering angle of the front wheel of the automobile is close to forty degrees, and most of floating disc mechanisms cannot meet the requirement of the maximum steering angle of the automobile, so that the automobile steering cannot be comprehensively tested, and the applicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the requirement of the maximum steering angle of an automobile cannot be met and the applicability is poor.

The technical scheme of the utility model is realized as follows: a large-angle steering floating disc mechanism for a four-wheel aligner comprises an installation main frame, an encoder and a floating disc, wherein the encoder is installed at the bottom end of the installation main frame, the floating disc is installed at the top end of the installation main frame, the center of the floating disc is fixedly connected with an input shaft of the encoder, a reset unit is installed between the encoder and the floating disc and comprises an outer connecting seat and an inner connecting seat, the outer connecting seat is fixed on the installation main frame, the inner connecting seat is fixed on an output shaft of the encoder, two scroll springs are connected between the outer connecting seat and the inner connecting seat, one of the scroll springs is in clockwise spiral and the other of the scroll springs is in counterclockwise spiral, and a large enough gap is reserved between the spirals of the two scroll springs and can provide a large rotation angle, so that the requirement of large-steering angle measurement of an automobile is met, and the large-angle steering floating disc mechanism is high in applicability; the two spiral springs are arranged in opposite spiral directions, when the floating disc rotates, one spiral spring stretches, the other spiral spring compresses, after measurement, the two spiral springs provide two acting forces, the floating disc can accurately return to the initial position, and the accuracy of returning the floating disc to the initial position is ensured.

Further, two spiral spring inner are stretched forty-five degrees respectively and are fixed on inner connecting seat, and the main reason that sets up like this makes two spiral springs have certain deformation volume, can provide great effort when reseing to make the dish that floats more accurate get back to initial position, can improve the speed of return simultaneously.

Furthermore, two locking mechanisms are correspondingly installed on two sides of the floating disc and are symmetrically arranged, and the two locking mechanisms are symmetrically locked from two sides of the floating disc, so that the floating disc can be stably positioned and locked.

Furthermore, locking mechanism is including setting up the support body frame in installation body frame one side, fixes the cylinder at support body frame top, fixes the tapered end at the flexible end of cylinder, fixes the locked groove at the dish distolateral floating, tapered end and locked groove cooperation are locked, drive the tapered end through the cylinder and insert the realization locking in the locked groove.

Furthermore, the end both sides of tapered end are corresponding to be provided with two direction inclined planes, and two direction inclined planes angle setting, and the angle between two direction inclined planes is less than one hundred eighty degrees, the inside of locked groove is provided with two cooperation inclined planes, two cooperation inclined planes and two direction inclined plane one-to-one, and the cooperation inclined plane cooperatees with the direction inclined plane that corresponds, can make the accurate location of floating disc through the cooperation between direction inclined plane and the cooperation inclined plane.

Furthermore, the lock head is connected with the support main frame in a sliding mode, so that the movement accuracy of the lock head can be improved, and the accurate positioning of the floating disc is guaranteed.

Further, the bottom both sides of installation body frame are corresponding to be fixed with two bearing bar one, and two ball bearing frame one are installed to two corresponding on the bearing bar one, are fixed with two bearing bar two between two ball bearing frame one, and two corresponding two ball bearing frame two of installing on two bearing bar, two top ends of two ball bearing frame are fixed with the mounting panel, the encoder is installed on the mounting panel, bearing bar one and two perpendicular designs of bearing bar enable the encoder through this kind of mode all around the horizontal migration to offset the sideslip of tire, thereby only measure the rotation angle to the floating disc.

Furthermore, four supporting ball seat are correspondingly fixed at four corners of the top end of the mounting main frame, the floating disc is supported by the four supporting ball seat, and the supporting ball seat can reduce the resistance of the floating disc during rotation, so that the floating disc can rotate with smaller resistance, and the accuracy of measuring data is indirectly improved.

The beneficial effects of the utility model are summarized as follows: a large enough gap is formed between the spirals of the two spiral springs, so that a large rotating angle can be provided, the requirement of measuring a large steering angle of an automobile is met, and the applicability is high; the two spiral springs are arranged in opposite spiral directions, when the floating disc rotates, one spiral spring stretches, the other spiral spring compresses, after measurement, the two spiral springs provide two acting forces, the floating disc can accurately return to the initial position, and the accuracy of returning the floating disc to the initial position is ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the reset unit of the present invention.

Fig. 3 is a schematic view of the bottom structure of the installation main frame of the utility model.

In the figure: the device comprises a mounting main frame 1, an encoder 2, a floating disc 3, a reset unit 4, an outer connecting seat 5, an inner connecting seat 6, a volute spring 7, a locking mechanism 8, a supporting main frame 9, a cylinder 10, a lock head 11, a locking groove 12, a guide inclined plane 13, a matching inclined plane 14, a bearing rod I15, a bearing rod I16, a bearing rod II 17, a bearing rod II 18, a mounting plate 19 and a supporting ball head seat 20.

Detailed Description

For the purpose of enhancing understanding of the present invention, a large-angle steering floating disc mechanism for a four-wheel aligner according to the present invention will be described in detail with reference to the accompanying drawings and examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1 to 3, a large-angle steering floating disc mechanism for a four-wheel aligner comprises an installation main frame 1, an encoder 2 installed at the bottom end of the installation main frame 1, a floating disc 3 installed at the top end of the installation main frame 1, the center of the floating disc 3 is fixedly connected with an input shaft of the encoder 2, a reset unit 4 is installed between the encoder 2 and the floating disc 3, the reset unit 4 comprises an outer connecting seat 5 fixed on the installation main frame 1, and an inner connecting seat 6 fixed on an output shaft of the encoder 2, two scroll springs 7 are connected between the outer connecting seat 5 and the inner connecting seat, one of the scroll springs is a clockwise spiral and the other is an anticlockwise spiral, a large enough gap is formed between the spirals of the two scroll springs 7, a large rotation angle can be provided, and therefore, the requirement of large-steering angle measurement of an automobile is met, and the applicability is strong; the two spiral springs 7 are arranged in opposite spiral directions, when the floating disc 3 rotates, one spiral spring 7 is stretched, the other spiral spring 7 is compressed, after measurement, the two spiral springs 7 provide two acting forces, so that the floating disc 3 can accurately return to the initial position, and the accuracy of returning the floating disc 3 to the initial position is ensured; the inner ends of the two spiral springs 7 are respectively stretched by forty-five degrees and then fixed on the inner connecting seat 6, and the main reason for the arrangement is that the two spiral springs 7 have certain deformation quantity and can provide larger acting force when resetting, so that the floating disc 3 can return to the initial position more accurately, and the resetting speed can be improved; two locking mechanisms 8 are correspondingly installed on two sides of the floating disc 3, the two locking mechanisms 8 are symmetrically arranged, and the two locking mechanisms 8 are symmetrically locked from two sides of the floating disc 3, so that the floating disc 3 can be stably positioned and locked; the locking mechanism 8 comprises a supporting main frame 9 arranged on one side of the mounting main frame 1, a cylinder 10 fixed at the top end of the supporting main frame 9, a lock head 11 fixed at the telescopic end of the cylinder 10, a lock groove 12 fixed at the end side of the floating disc 3, the lock head 11 and the lock groove 12 are matched and locked, and the lock head 11 is driven by the cylinder 10 to be inserted into the lock groove 12 to realize locking; two guide inclined planes 13 are correspondingly arranged on two sides of the end of the lock head 11, the two guide inclined planes 13 are arranged at an angle, the angle between the two guide inclined planes 13 is less than one hundred eighty degrees, two matching inclined planes 14 are arranged inside the lock groove 12, the two matching inclined planes 14 correspond to the two guide inclined planes 13 one by one, the matching inclined planes 14 are matched with the corresponding guide inclined planes 13, and the floating disc 3 can be accurately positioned through the matching between the guide inclined planes 13 and the matching inclined planes 14; the lock head 11 is connected with the support main frame 9 in a sliding way, so that the movement accuracy of the lock head 11 can be improved, and the accurate positioning of the floating disc 3 is ensured; two first bearing rods 15 are correspondingly fixed on two sides of the bottom of the mounting main frame 1, two first ball bearing seats 16 are correspondingly mounted on the two first bearing rods 15, two second bearing rods 17 are fixed between the two first ball bearing seats 16, two second ball bearing seats 18 are correspondingly mounted on the two second bearing rods 17, a mounting plate 19 is fixed at the top ends of the two second ball bearing seats 18, the encoder 2 is mounted on the mounting plate 19, the first bearing rods 15 and the second bearing rods 17 are designed vertically, the encoder 2 can move front and back and left and right in this way, so that the sideslip of a tire is counteracted, and only the rotation angle of the floating disc 3 is measured; four supporting ball cup seats 20 are correspondingly fixed at four corners of the top end of the mounting main frame 1, the floating disc 3 is supported by the four supporting ball cup seats 20, and the supporting ball cup seats 20 can reduce the resistance of the floating disc 3 during rotation, so that the floating disc 3 can rotate with smaller resistance, and the accuracy of measuring data is indirectly improved.

Instructions for use: firstly, controlling two cylinders 10 on two sides to work simultaneously, driving two lock heads 11 to move by the two cylinders 10, wherein a guide inclined plane 13 is contacted with a matching inclined plane 14 along with the movement, friction dislocation occurs between the matching inclined plane 14 and the guide inclined plane 13, so that a lock groove 12 is centrally inserted on the lock heads 11, when the lock heads 11 are inserted into the lock groove 12, locking of a floating disc 3 is realized by the mode, after locking, a front wheel of an automobile runs to the middle of the floating disc 3, then controlling the two cylinders 10 to act to drive the two lock heads 11 to be pulled out and loosened from the lock groove 12, completing preparation in the early stage, then rotating a steering wheel to rotate the front wheel, driving the front wheel to rotate the floating disc 3, driving an encoder 2 by the floating disc 3 to generate corresponding data, and realizing detection of the rotation angle of the tire; in the process of rotation detection, the floating disc 3 drives the two scroll springs 7 to rotate, one scroll spring 7 is continuously stretched, the stretching amplitude of the other scroll spring 7 is reduced until the angle required to be tested by the automobile is reached, the rotation angle provided by the mode is large, the rotation angle requirement of most automobiles can be met, and the applicability is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a wide-angle turns to floating disc mechanism for four-wheel aligner, includes installation body frame (1), installs encoder (2) in installation body frame (1) bottom, installs floating disc (3) on installation body frame (1) top, floating disc (3) center and the input shaft fixed connection of encoder (2), install between encoder (2) and floating disc (3) reset unit (4), its characterized in that: the reset unit (4) comprises an outer connecting seat (5) fixed on the installation main frame (1) and an inner connecting seat (6) fixed on an output shaft of the encoder (2), wherein two scroll springs (7) are connected between the outer connecting seat (5) and the inner connecting seat, and one of the scroll springs is clockwise screwed while the other is counterclockwise screwed.

2. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 1, wherein: the inner ends of the two spiral springs (7) are respectively stretched by forty-five degrees and then fixed on the inner connecting seat (6).

3. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 1 or 2, wherein: two locking mechanisms (8) are correspondingly installed on two sides of the floating disc (3), and the two locking mechanisms (8) are symmetrically arranged.

4. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 3, wherein: the locking mechanism (8) comprises a supporting main frame (9) arranged on one side of the mounting main frame (1), a cylinder (10) fixed at the top end of the supporting main frame (9), a lock head (11) fixed at the telescopic end of the cylinder (10), and a lock groove (12) fixed at the end side of the floating disc (3), wherein the lock head (11) is matched and locked with the lock groove (12).

5. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 4, wherein: the end both sides of tapered end (11) are corresponding to be provided with two direction inclined planes (13), and two direction inclined planes (13) angulation setting, and the angle between two direction inclined planes (13) is less than one hundred eighty degrees, the inside of locked groove (12) is provided with two cooperation inclined planes (14), two cooperation inclined planes (14) and two direction inclined planes (13) one-to-one, and cooperation inclined plane (14) and the direction inclined plane (13) that correspond cooperate.

6. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 4, wherein: the lock head (11) is connected with the support main frame (9) in a sliding way.

7. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 3, wherein: the bottom both sides of installation body frame (1) are corresponding to be fixed with two bearing bar (15), correspond on two bearing bar (15) to install two ball bearing frame (16), are fixed with two bearing bar two (17) between two ball bearing frame (16), correspond on two bearing bar two (17) to install two ball bearing frame two (18), and two ball bearing frame two (18) tops are fixed with mounting panel (19), install on mounting panel (19) encoder (2), bearing bar (15) and two bearing bar (17) vertical design.

8. The large-angle steering floating disc mechanism for the four-wheel aligner according to claim 1, wherein: four supporting ball seat bases (20) are correspondingly fixed at four corners of the top end of the mounting main frame (1), and the floating disc (3) is supported by the four supporting ball seat bases (20).