阅读说明：本技术 一种测量轮胎tkph值的装置、系统及方法 (Device, system and method for measuring TKPH value of tire ) 是由 晋琦 马鹏之 齐庆森 刁目坤 胡源 孔德鲁 赵东海 邱新新 管烁 刘永允 于 2021-09-30 设计创作，主要内容包括：本公开提供了一种测量轮胎TKPH值的装置、系统及方法,包括温度传感器和多根测温线；所述测温线一端与所述温度传感器连接,另一端预埋于待测轮胎内；本公开在轮胎成型工序提前预埋T型测温线,将T型测温线精准预埋；轮胎经过硫化后,将T型测温线与温度传感器相接,通过温度监测系统,实时监控测温点的温度；使用该方法及装置,既不需要对轮胎打孔,停机测量,又可消除测量误差及安全隐患。(The utility model provides a device, a system and a method for measuring TKPH value of a tire, which comprises a temperature sensor and a plurality of temperature measuring lines; one end of the temperature measuring line is connected with the temperature sensor, and the other end of the temperature measuring line is embedded in the tire to be measured; the T-shaped temperature measuring line is pre-embedded in advance in the tire molding process, and is accurately pre-embedded; after the tire is vulcanized, connecting a T-shaped temperature measuring line with a temperature sensor, and monitoring the temperature of a temperature measuring point in real time through a temperature monitoring system; by using the method and the device, the tire is not required to be punched, stopped for measurement, and measurement errors and potential safety hazards can be eliminated.)

1. The device for measuring the TKPH value of the tire is characterized by comprising a temperature sensor and a plurality of temperature measuring lines;

one end of the temperature measuring line is connected with the temperature sensor, and the other end of the temperature measuring line is embedded in the tire to be measured.

2. The apparatus for measuring TKPH of a tire according to claim 1, wherein one end of the temperature measuring line is pre-buried between the uppermost belt and the tread.

3. The apparatus for measuring the TKPH of a tire according to claim 1, wherein the temperature measuring line is a T-shaped temperature measuring line.

4. The apparatus for measuring TKPH of a tire according to claim 1, wherein the plurality of temperature measuring lines are evenly distributed along the circumference of the tire under test.

5. The apparatus for measuring TKPH value of tyre according to claim 1, wherein the pre-buried end of the temperature measuring line is arranged S-shaped along the axial direction of the tyre to be measured.

6. The apparatus for measuring TKPH of tire as claimed in claim 1, wherein the temperature sensor is fixed on the rim of the tire to be tested.

7. The apparatus for measuring TKPH of a tire as claimed in claim 1, wherein the temperature sensor is provided with a transmitting antenna.

8. A system for measuring the TKPH of a tire, comprising the apparatus for measuring the TKPH of a tire as claimed in any one of claims 1 to 7, a receiving unit, a data collecting and processing unit, and a monitoring unit;

the device for measuring the TKPH value of the tire is wirelessly connected with the receiving unit, and the receiving unit, the data acquisition and processing unit and the monitoring unit are sequentially connected through wires.

9. A method for measuring TKPH of a tire using the apparatus for measuring TKPH of a tire as claimed in any one of claims 1 to 7, comprising:

determining the positions of pattern blocks according to the design pattern of the tire to be tested, and determining a plurality of temperature measuring points at the positions which are uniformly distributed in the circumferential direction;

after the tire to be tested finishes the belt lamination of the uppermost layer, fixing a T-shaped temperature measuring line according to the position of the temperature measuring point;

after the T-shaped temperature measuring wire is fixed, the T-shaped temperature measuring wire is fastened and the wire end is led to the toe opening position of the embryo;

after the tire to be tested is vulcanized, checking the state of a temperature measuring line, and after the normal conduction temperature of the temperature measuring line is confirmed, mounting and matching the tire to be tested and a rim;

after the tire is installed on the rim, connecting a T-shaped temperature measuring line with a temperature sensor, and fixing the temperature sensor to the rim;

a drum test is carried out, the temperature is monitored and recorded, and the TKPH value is calculated.

10. A method of measuring the TKPH of a tire as in claim 9 wherein after the measurement is completed the temperature measurement line is cut along the tread and one end of the temperature measurement line is left in the tire.

Technical Field

The disclosure belongs to the technical field of tire detection, and particularly relates to a device, a system and a method for measuring TKPH value of a tire.

Background

TKPH is an abbreviation for Ton @ Kilometer Per Hours, a measure of the ability of a tire to operate and control the amount of tire operation so that the tire does not become unduly hot under undue load leading to premature failure.

In the GB/T30197-2018 drum method for engineering machinery tire operation capability test, the same temperature measuring hole is required to continuously measure 3 times or the difference between the highest value and the lowest value of 3 times of measurement is less than 3 ℃; the standard requires that every 1h of operation, the temperature of all holes is measured, and the operation is continued after the measurement is completed until the temperature is kept constant.

The inventor of the present disclosure finds that the existing measurement methods also have the following:

1. the temperature measurement needs to be stopped, so that measurement errors can be caused and a large potential safety hazard can be caused;

2. in the prior art, a thermocouple temperature sensor is inserted into a temperature detection hole of a tire to be detected, a tire temperature measurement wireless transmitting unit is fixed on a rim, and a thermocouple wire is connected to the tire temperature measurement wireless transmitting unit to realize the non-stop detection of the TKPH value of the tire; however, there is still a problem that the tire needs to be provided with a temperature detection hole, and the presence of the temperature detection hole affects the performance of the tire.

Disclosure of Invention

The device, the system and the method for measuring the TKPH value of the tire are provided for solving the problems, the T-shaped temperature measuring line (high temperature resistance and high heat conduction efficiency) is pre-embedded in advance in the tire molding process, and the T-shaped temperature measuring line (high temperature resistance and high heat conduction efficiency) is accurately pre-embedded; after the tire is vulcanized, connecting a T-shaped temperature measuring line with a temperature sensor (with a wireless transmitting signal), and monitoring the temperature of a temperature measuring point in real time through a temperature monitoring system; by using the method and the device, the tire is not required to be punched, stopped for measurement, and measurement errors and potential safety hazards can be eliminated.

In order to achieve the purpose, the invention is realized by the following technical scheme:

in a first aspect, the present disclosure provides an apparatus for measuring TKPH of a tire, comprising a temperature sensor and a plurality of temperature measurement lines;

one end of the temperature measuring line is connected with the temperature sensor, and the other end of the temperature measuring line is embedded in the tire to be measured.

Furthermore, one end of the temperature measuring line is embedded between the belt surface of the uppermost layer and the tire surface.

Further, the temperature measuring line is a T-shaped temperature measuring line.

Furthermore, a plurality of temperature measuring lines are uniformly distributed along the circumferential direction of the tire to be measured.

Furthermore, one embedded end of the temperature measuring line is arranged in an S shape along the axial direction of the tire to be measured.

Further, the temperature sensor is fixed on a rim of the tire to be detected.

Furthermore, a transmitting antenna is arranged on the temperature sensor.

In a second aspect, the present disclosure also provides a system for measuring a tire TKPH, including the apparatus for measuring a tire TKPH as described in the first aspect, the receiving unit, the data acquisition processing unit, and the monitoring unit;

the device for measuring the TKPH value of the tire is wirelessly connected with the receiving unit, and the receiving unit, the data acquisition and processing unit and the monitoring unit are sequentially connected through wires.

In a third aspect, the present disclosure also provides a method of measuring a tire TKPH using the apparatus for measuring a tire TKPH as described in the first aspect, comprising:

determining the positions of pattern blocks according to the design pattern of the tire to be tested, and determining a plurality of temperature measuring points at the positions which are uniformly distributed in the circumferential direction;

after the tire to be tested finishes the belt lamination of the uppermost layer, fixing a T-shaped temperature measuring line according to the position of the temperature measuring point;

after the T-shaped temperature measuring wire is fixed, the T-shaped temperature measuring wire is fastened and the wire end is led to the toe opening position of the embryo;

after the tire to be tested is vulcanized, checking the state of a temperature measuring line, and after the normal conduction temperature of the temperature measuring line is confirmed, mounting and matching the tire to be tested and a rim;

after the tire is installed on the rim, connecting a T-shaped temperature measuring line with a temperature sensor, and fixing the temperature sensor to the rim;

a drum test is carried out, the temperature is monitored and recorded, and the TKPH value is calculated.

Further, after the measurement is finished, the temperature measuring line is cut off along the tire surface, and one end of the temperature measuring line is left in the tire.

Compared with the prior art, the beneficial effect of this disclosure is:

1. compared with a method for pre-embedding a wireless sensing thermocouple in advance in a temperature measuring hole, the temperature measuring line is accurately implanted before tire molding, finished tires do not need to be punched, and the tires are not damaged; meanwhile, the accuracy of the measuring position can be ensured, and the measuring accuracy and the safety are greatly improved;

2. the tire punching and stopping measurement method does not need to punch and stop the measurement of the tire, and can eliminate measurement errors and potential safety hazards.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the present embodiments, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the present embodiments and together with the description serve to explain the present embodiments without unduly limiting the present embodiments.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present disclosure;

FIG. 2 shows the air bubble detection results of the test tires of example 1 of the present disclosure;

FIG. 3 is the tire section position after the experiment of example 1 of the present disclosure;

the device comprises a temperature measuring line 1, a temperature sensor 2, a temperature sensor 3, a tire to be measured 4, a rim 5, a belt surface 6 and a tire surface.

The specific implementation mode is as follows:

the present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Example 1:

as shown in fig. 1, the present embodiment provides an apparatus for measuring TKPH of a tire, including a temperature sensor 2 and a plurality of temperature measuring lines 1; one end of the temperature measuring line is connected with the temperature sensor 2, and the other end of the temperature measuring line is embedded in the tire 3 to be measured.

Specifically, the temperature measuring line 1 is accurately pre-embedded, and the pre-embedding position refers to a drilling position required in GB/T30197-2018 drum method for testing the tire operation capacity of the engineering machinery; the device is used for measuring the TKPH value of the tire, so that the tire is not required to be punched, stopped for measurement, and measurement errors and potential safety hazards can be eliminated.

In this embodiment, one end of the temperature measuring line 1 is embedded between the uppermost belt 5 and the tread 6.

Specifically, after the top belt is attached in the tire forming process, fixing a temperature measuring line, and embedding the temperature measuring line 1 after tire vulcanization; the accurate fixation of the position of the temperature measuring line 1 is ensured, meanwhile, the temperature measuring line is embedded in the vulcanization process, the embedded connection strength of the temperature measuring line 1, the belt surface 5 and the tread 6 of the tire is improved, and the performance of the tire is improved.

In this embodiment, the temperature measuring line is a T-shaped temperature measuring line.

Specifically, the T-type thermocouple is also called a copper-constantan thermocouple (copper/nickel copper thermocouple, division number T, measurement range-200- +350 ℃), and is also an optimal thermocouple for measuring low-temperature inexpensive metal. The positive electrode (TP) is pure copper, and the negative electrode (TN) is copper-nickel alloy called constantan. The T-type thermocouple has the advantages of good linearity, larger thermoelectromotive force, higher sensitivity, approximate linearity and reproducibility of temperature, fast heat transfer, better stability and uniformity, low price and the like, has better stability, can be less than +/-3 mu V in annual stability, and can be used as a second-class standard for low-temperature magnitude transmission through low-temperature verification.

In the embodiment, a plurality of temperature measuring lines 1 are uniformly distributed along the circumferential direction of the tire 3 to be measured; one embedded end of the temperature measuring line 1 is arranged in an S shape along the axial direction (transverse direction) of the tire 3 to be measured.

Specifically, one embedded end of the temperature measuring line 1 is arranged in an S shape along the axial direction (transverse direction) of the tire 3 to be measured, so that the contact area between the temperature measuring line 1 and the embedded tire 3 to be measured is increased, the direction of the interaction force between the temperature measuring line 1 and the contact surface of the tire 3 to be measured is dispersed and uncertain, the breaking strength caused by the parallel direction of the action force is reduced, and the influence of the temperature measuring line 1 on the performance of the tire 3 to be measured is reduced.

In the present embodiment, the temperature sensor 2 is fixed to the rim 4 of the tire 3 to be tested; the temperature sensor 2 is provided with a transmitting antenna to realize wireless transmission, and specifically, the temperature sensor 2 can be set as a tire temperature measurement wireless transmitting unit.

Example 2:

the present embodiment provides a system for measuring a tire TKPH, including the apparatus for measuring a tire TKPH as in embodiment 1, a receiving unit, a data collecting processing unit, and a monitoring unit;

the device for measuring the TKPH value of the tire is wirelessly connected with the receiving unit, and the receiving unit, the data acquisition and processing unit and the monitoring unit are sequentially connected through a wire; the wireless connection of the receiving unit, the data acquisition and processing unit and the monitoring unit are realized by adopting the prior art.

Example 3:

this example provides a method for measuring the TKPH of a tire using the apparatus for measuring the TKPH of a tire as described in example 1, comprising:

determining the positions of pattern blocks according to the design pattern of the tire to be tested, and determining a plurality of temperature measuring points at the positions which are uniformly distributed in the circumferential direction; preferably, 3 temperature measuring points are arranged;

after the tire to be tested finishes the belt lamination of the uppermost layer, fixing a T-shaped temperature measuring line according to the position of the temperature measuring point;

after the T-shaped temperature measuring wire is fixed, the T-shaped temperature measuring wire is fastened and the wire end is led to the toe opening position of the embryo;

after the tire to be tested is vulcanized, checking the state of a temperature measuring line, and after the normal conduction temperature of the temperature measuring line is confirmed, mounting and matching the tire to be tested and a rim;

after the tire is installed on the rim, connecting a T-shaped temperature measuring line with a temperature sensor, and fixing the temperature sensor to the rim;

performing a drum test, monitoring and recording the temperature, and calculating the TKPH value; specifically, a drum test is carried out according to the test requirements and methods of GB/T30197-2018, and the temperature is monitored and recorded through a temperature sensing system; and calculating the TKPH value according to the numerical calculation and processing method of GB/T30197-2018.

In this embodiment, after the measurement is completed, the temperature measuring wire is cut along the tire tread, and one end of the temperature measuring wire is left in the tire.

In order to verify the influence of the measurement mode that the measuring line is embedded in the tire to be measured on the performance of the tire, the reliability of the tire is verified;

specifically, as shown in fig. 2, through X-ray detection and cat-eye bubble detection, the detection result shows that the T-shaped temperature measurement line does not affect the product quality; after a large number of endurance tests are carried out on the test tire, the T-shaped temperature measuring line does not influence the endurance performance of the tire;

as shown in FIG. 3, after the tire is damaged, the T-shaped temperature measuring line is not damaged, the T-shaped temperature measuring line is far away from the damaged position of the tire, and the T-shaped temperature measuring line does not influence the performance of the tire.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.