CN213023555U

CN213023555U - Tire width measuring device for wheel balancing machine

Info

Publication number: CN213023555U
Application number: CN202021938577.4U
Authority: CN
Inventors: 赖小春; 李义
Original assignee: Zhejiang Zhenhuan Automobile Service Equipment Co ltd
Current assignee: Zhejiang Zhenhuan Automobile Service Equipment Co ltd
Priority date: 2020-05-27
Filing date: 2020-09-07
Publication date: 2021-04-20
Anticipated expiration: 2030-09-07

Abstract

The utility model provides a tire width measuring device for wheel balancing machine, including the device assembly, the device assembly install in tire protection casing return bend department, just the device assembly include device shell and device circuit, the device circuit include host system and connect in host system's survey wide module, instruct orientation module and angle response module, host system be connected with the communication interface who is used for connecting wheel balancing machine system. The utility model has simple structure and low cost; convenient installation, convenient use and the like.

Description

Tire width measuring device for wheel balancing machine

Technical Field

The utility model belongs to the technical field of the tire width measurement, especially, relate to a tire width measuring device for wheel balancing machine.

Background

The wheel balancing machine is the most important and most commonly used wheel maintenance and detection equipment, needs to acquire the width of waiting to detect/maintaining the wheel, and the mode that prior art wheel balancing machine acquireed the wheel width is pressed from both sides the chi through the width and is carried out manual measurement, and measurement accuracy is lower, needs manual input measurement size, brings inconvenience for the use.

In order to solve the above technical problems, people have long searched for, for example, chinese patent discloses a measuring scale for a dynamic wheel balancer [ application No.: CN200920099716.6], the wheel width measuring ruler consists of a ruler arm rotating shaft sleeve, a ruler arm rotating shaft, a first screw, a mounting plate, a potentiometer card, a first jackscrew, a second jackscrew, a shaft sleeve, a torsion spring, a rotating shaft, a tension spring, a second screw, a ruler arm, a measuring head, a mandril, a third screw, a ruler arm connecting plate and a fourth screw; the potentiometer is fixedly arranged on the mounting plate, an axial through hole is arranged on the scale arm rotating shaft, the scale arm rotating shaft is sleeved on the potentiometer, the scale arm rotating shaft and the rotating shaft are fixedly connected with the mounting plate, the axis of the rotating shaft is vertical to the axis of the rotating shaft of the potentiometer, the scale arm rotating shaft sleeve is sleeved on the scale arm rotating shaft and is in sliding fit with the scale arm rotating shaft, a first annular groove is processed on the outer side wall of the scale arm rotating shaft, a first screw penetrates through a screw hole in the side wall of the scale arm rotating shaft sleeve and is arranged in the first annular groove, the scale arm rotating shaft sleeve is axially limited through the first screw, the potentiometer clamping piece is arranged on the upper end face of the scale arm rotating shaft sleeve, the potentiometer clamping piece is fixedly connected with the scale arm rotating shaft sleeve and the potentiometer, one end of the scale arm connecting plate is fixedly connected with the outer side wall of the scale arm rotating shaft sleeve, one end of the scale arm is, the second screw is equipped with on the rotatory axle sleeve lateral wall of chi arm, the relative chi arm rotation axis of fourth screw and third screw is all installed on the mounting panel, the fourth screw sets up between first screw and second screw, the both ends of extension spring respectively with second screw and third screw connection, the rotation angle of chi arm is injectd through fourth screw and first screw and second screw, the rotation axis dress is in the axle hole of axle sleeve and with axle sleeve normal running fit, it has second ring type slot to process on the lateral wall of rotation axis, the rotation axis is spacing through the second jackscrew axial of dress in second ring type slot, the one end of torsional spring is installed on the axle sleeve, the other end of torsional spring is installed on the rotation axis.

By the aid of the scheme, automatic measurement and automatic input of the width of the wheel rim can be realized, and the measurement efficiency of the dynamic wheel balancing machine is improved. However, the above solutions still have disadvantages, such as the above solutions require complicated structural members, and have problems of high cost, inconvenient measurement, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a tire width measuring device for wheel balancing machine.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a tire width measuring device for wheel balancing machine, includes the device assembly, the device assembly install in tire protection casing return bend department, just the device assembly include device shell and device circuit, the device circuit include host system and connect in host system's width measuring module, instruction orientation module and angle response module, host system be connected with the communication interface who is used for connecting wheel balancing machine system.

In the tire width measuring device for the wheel balancer, the width measuring module comprises a radar ranging unit, and the radar ranging unit is connected to the main control module;

the indication positioning module comprises a laser indicator connected with the main control module.

The angle sensing module comprises an angle sensor connected to the main control module.

In the above tire width measuring device for a wheel balancer, the device housing includes a mounting bracket for mounting the device assembly at an elbow of the tire housing and a mounting housing for fixing the device circuit in the device housing.

In the above tire width measuring device for a wheel balancer, the device circuit includes a control board, the main control module and the angle sensor are mounted on the control board, and the control board is mounted in the mounting housing; the installation shell is provided with a laser detection port and a ranging port, the laser indicator is embedded at the laser detection port, and the radar ranging unit is embedded at the ranging port.

In the tire width measuring device for the wheel balancing machine, the device circuit further comprises a display unit connected to the main control module, and the mounting shell is further provided with a display port for embedding the display unit.

The utility model has the advantages that: the structure is simple, and the cost is low; convenient installation and use.

Drawings

FIG. 1 is a schematic view of the installation of the tire width measuring device of the present invention on a wheel balancer;

FIG. 2 is a view of the working frame of the tire width measuring device of the present invention;

FIG. 3 is a circuit diagram of the tire width measuring device according to the present invention;

FIG. 4 is an exploded view of the device assembly of the tire width measuring device of the present invention;

fig. 5 is a schematic view of the tire width measuring device according to the present invention in a state where the angle data is 90 degrees;

FIG. 6 is a diagram illustrating the angle determination result of the state of FIG. 5;

fig. 7 is a schematic view of the tire width measuring device according to the present invention in a state where the angle data is less than 90 degrees;

FIG. 8 is a diagram illustrating the angle determination result of the state of FIG. 7;

FIG. 9 is a schematic view showing the laser indicator of the tire width measuring device according to the present invention in a measuring state;

FIG. 10 is a schematic diagram of the distance measurement of the radar distance measuring unit in the measurement state of the tire width measuring device of the present invention;

reference numeral, a device assembly 1; a tire shield elbow 2; a device case 3; a mounting bracket 31; a mounting housing 32; a laser detection port 321; a ranging port 322; a device circuit 4; a radar ranging unit 41; a laser pointer 42; an angle sensor 43; a display unit 44; a control board 45; a master control module 46.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the present embodiment discloses a tire width measuring device for a wheel balancer, which includes a device assembly 1, the device assembly 1 is installed at a tire shield elbow 2, the device assembly 1 includes a device housing 3 for installing the device assembly 1 at the tire shield elbow 2 and a device circuit 4 located in the device housing 3, the device circuit 4 includes a main control module 46, a width measuring module connected to the main control module 46, an indication positioning module and an angle sensing module, the main control module 46 is connected to a communication interface 47 for connecting the main control module 46 to the wheel balancer system, and the measured tire width is transmitted to the wheel balancer system through the communication interface 47.

The embodiment utilizes the condition of wheel balancing machine itself, directly installs device assembly 1 in wheel balancing machine self's tire protection casing return bend department, does not need complicated structure, has advantages such as simple structure is with low costs.

Specifically, as shown in fig. 2 and 3, the width measuring module includes a radar ranging unit 41 for measuring distance, the indicating and positioning module includes a laser pointer 42, the laser pointer 42 includes a laser light D1 and a switch tube Q1 for indicating positioning so that the user knows whether the current angle can be measured; the angle sensing module comprises an angle sensor 43, specifically a triaxial acceleration sensor, for acquiring real-time angles, and the device can automatically drive the radar ranging unit 41 to automatically measure according to the angle condition by setting the angle sensor 43. The radar ranging unit 41, the laser pointer 42 and the angle sensor 43 are all connected to a main control module 46. The measurement area indicated by the laser pointer 42 is indicated at an ellipse in fig. 2.

The mode of automatically starting measurement according to the angle condition is preferably adopted, and the method has the advantages of convenience in use and intelligence in measurement. Of course, in practice, a manual measurement starting mode may also be adopted, for example, a laser switch and a measurement switch connected to the main control module 46 are provided on the apparatus assembly 1, the laser switch is turned on before starting the measurement to start the positioning function of the laser pointer 42, and after the indicator light of the laser pointer 42 enters the measurement area, the user can press the measurement switch to turn on the radar ranging unit 41 to start the distance measurement.

In addition, the device circuit 4 further includes a display unit 44 connected to the main control module 46, and the display unit is used for displaying the angle data, the width data and other contents.

Specifically, as shown in fig. 4, the device housing 3 includes a mounting bracket 31 for mounting the device assembly 1 at the tire house elbow 2 and a mounting housing 32 for fixing the device circuit 4 within the device housing 3.

The device circuit 4 comprises a control board 45, a main control module 46 and an angle sensor 43 are arranged on the control board 45, and the control board 45 is arranged in the mounting shell 32; the mounting shell 32 is provided with a laser detection port 321 and a distance measurement port 322, the laser indicator 42 is embedded in the laser detection port 321, and the radar distance measurement unit 41 is embedded in the distance measurement port 322.

In addition, the mounting case 32 is provided with a display opening 323 for inserting the display unit 44

Specifically, the tire width measuring device for a wheel balancer of the present embodiment performs the following measurement process when put into use:

when the width of the tire needs to be measured, a user pulls the tire shield elbow 2, and the device assembly 1 changes the position along with the tire shield elbow 2, so that the angle sensor 43 senses the change of angle data. In the state of fig. 5, the angle data determined by the angle sensor 43 in the device assembly 1 is 90 degrees, and the voltage value of the pin 12 of the U2 chip in fig. 3 is 1.0V, as shown in the state of fig. 6. When the tire shield elbow 2 moves to the state shown in fig. 7, the angle data judged by the angle sensor 43 in the device assembly 1 is smaller than 90 degrees, and the voltage value of the pin 12 of the U2 chip in fig. 3 is 1.0V, as shown in the state shown in fig. 8. The working state of the whole device assembly 1 is triggered along with the position change of the tire shield elbow 2, namely:

A. illuminating the laser pointer 42 while the angle data is changing to enable the pointing and positioning function of the laser pointer 42; the user stops slightly after the laser pointer 42 indicates the measurement area (referring to the area indicated by the ellipse in fig. 9) according to the positioning indicated by the laser pointer 42, for example, the tire shield elbow 2 is kept still for at least a preset time period, which may be 3S or more or less;

B. driving the radar ranging unit 41 when the angle data is smooth and stable within a continuous preset time period, and measuring a distance value between the radar ranging unit 41 and the tire to be measured by the radar ranging unit 41; the smooth and stable default of the angle data within the continuous preset time period indicates that the radar ranging unit 41 is aligned with the tire to be measured, and the smooth and stable data indicates that the angle data has no large fluctuation, namely the tire protective cover bent pipe 2 does not move any more; for example, in the present embodiment, the tire shield elbow 2 is rotated to the state shown in fig. 9 and 10 and is kept for the preset time so that the radar ranging unit 41 can obtain the distance value;

C. tire width is calculated from the distance values and tire width data is sent to the wheel balancer system. When a tire to be measured is not installed, the distance value measured by the radar ranging unit 41 is a, when the tire is installed, the distance value measured by the radar ranging unit 41 is B, the distance value B measured at this time is reduced compared with the distance value a, the reduced value is the width of the tire, namely, a-B is the tire width, wherein the value a is fixed, and the value a is stored in the main control module 46 in advance, and when the tire width is measured, the measured distance value B is directly subtracted from the value a, which is the tire width measured at this time.

Preferably, the laser indicator 42 can be turned off after the completion of step B or step C, that is, the laser indicator 42 can be turned off after the completion of the measurement of the distance value or the completion of the transmission of the tire width, so as to achieve the purposes of energy saving and environmental protection, and reduce the energy consumption of the machine.

Further, the angle data is displayed on the display unit 44 during the angle data changing process, and the width data is displayed on the display unit 44 after the width data is acquired. The real-time display of the angle data and the width data can be used for a user to carry out fault diagnosis, and the user can judge whether the part has problems according to specific numerical values so as to be convenient for maintenance and inspection.

In the embodiment, the laser indicator 42 is used for positioning, the angle sensor 43 is used for judging the angle, the radar ranging unit 41 is used for judging the distance by returning radar wave signals from the transmitting end to the end of the tire to be measured according to the radar wave principle, the width value of the tire is calculated according to the geometric mathematical model, and the automatic measurement of the width of the tire is realized. The measuring accuracy is accurate, and simultaneously has the advantages of simple operation, low cost, simple and convenient installation and the like.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the device assembly 1 is used more herein; a tire shield elbow 2; a device case 3; a mounting bracket 31; a mounting housing 32; a laser detection port 321; a ranging port 322; a device circuit 4; a radar ranging unit 41; a laser pointer 42; an angle sensor 43; a display unit 44; a control board 45; master control module 46, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a tire width measuring device for wheel balancing machine, characterized in that, includes device assembly (1), device assembly (1) install in tire protection casing return bend (2) department, just device assembly (1) include device shell (3) and device circuit (4), device circuit (4) include host system (46) and connect in host system (46) survey wide module, instruct orientation module and angle induction module, host system (46) be connected with communication interface (47) that are used for connecting the wheel balancing machine system.

2. The tire width measuring device for a wheel balancer as claimed in claim 1, wherein the width measuring module includes a radar ranging unit (41), and the radar ranging unit (41) is connected to the main control module (46).

3. The apparatus as claimed in claim 2, wherein the index positioning module includes a laser pointer (42) connected to the main control module (46).

4. The tire width measuring device for a wheel balancer as claimed in claim 3, wherein the angle sensing module includes an angle sensor (43) connected to the main control module (46).

5. The tire width measuring device for a wheel balancer as claimed in claim 4, wherein the device housing (3) includes a mounting bracket (31) for mounting the device assembly (1) at the tire guard elbow (2) and a mounting housing (32) for fixing the device circuit (4) in the device housing (3).

6. The tire width measuring device for a wheel balancer as claimed in claim 5, wherein the device circuit (4) includes a control board (45), the main control module (46) and the angle sensor (43) are mounted on the control board (45), and the control board (45) is mounted in the mounting case (32).

7. The apparatus for measuring the width of a tire for a wheel balancer as claimed in claim 6, wherein the mounting case (32) is formed with a laser detecting port (321) and a distance measuring port (322), the laser pointer (42) is embedded in the laser detecting port (321), and the radar distance measuring unit (41) is embedded in the distance measuring port (322).

8. The apparatus for measuring the width of a tire for a wheel balancer as claimed in claim 7, wherein the apparatus circuit (4) further comprises a display unit (44) connected to the main control module (46), and the mounting case (32) is further provided with a display opening (323) for inserting the display unit (44).