CN105300821A - Method and device for simply, conveniently and quickly identifying off-the-road tyre hardness - Google Patents

Abstract

The invention discloses a method and device for simply, conveniently and quickly identifying the off-the-road tyre hardness. A standard pressure weight is adopted to detect a standard sample to obtain a standard depth, and whether a product is qualified or not can be judged only through comparing the detected depth with the standard depth when the to-be-detected product is quickly detected. According to the method and the device, the structure that the standard pressure weight is arranged in a detection cylinder is adopted, so that the standard pressure weight is guaranteed to press downwards in the vertical direction, and the test accuracy is guaranteed; besides, a detection marking rod is arranged, so that the detection result can be quickly and accurately known, and the operation procedures are greatly simplified; the device is quite suitable for on-site on-line use, and the detection accuracy is good; the method provided by the invention is easy and feasible, and the adopted device is simple in structure, low in production cost, and good in use effect.

Description

Simple and quick method and device for identifying the hardness of construction machinery tires

technical field

The invention relates to the technical field of detection, in particular to a method and device for easily and quickly identifying the hardness of engineering machinery tires.

Background technique

Usually, OTR tires are tested for hardness after they are finished on the production line, so as to distinguish products with unqualified hardness. Due to the large output in industrial production, if a simple and practical device can be used to test the product directly on the production line Quickly distinguishing whether the hardness is qualified or not will have significant use value and economic benefits for improving the qualified rate of products and production efficiency.

Contents of the invention

The purpose of the present invention is to provide a simple and fast method and device for identifying the hardness of engineering machinery tires, which has a simple structure, easy operation, fast efficiency and good reliability.

The present invention is realized as follows: a simple and quick method for identifying the hardness of engineering machinery tires, setting a standard pressure weight with a constant weight, placing the standard pressure weight on the surface of a standard sample of engineering machinery tires with qualified hardness, and using the self-weight of the standard pressure weight to adjust the hardness of the engineering machinery tire. Extrude the standard sample of the mechanical tire to obtain an extrusion depth, which is recorded as the standard depth, and then use the same method to test the standard pressure weight of the OTR tire to be tested to obtain the detection depth, and compare the detection depth with the standard depth , if the detection depth is greater than the standard depth, then it is identified that the hardness of the OTR tire to be tested is unqualified, and if the detection depth is less than or equal to the standard depth, then it is identified that the hardness of the OTR tire to be tested is qualified.

The device for easily and quickly identifying the hardness of construction machinery tires includes a detection cylinder, the two ends of the detection cylinder are open, the middle of which is a cylindrical cavity, and a cylindrical standard pressure weight is arranged in the cavity of the detection cylinder. A detection mark rod is arranged on the top of the standard pressure weight, and an identification block is arranged on the detection mark rod.

The bottom of the standard pressure weight is an inverted cone structure, and its bottom end is an arc surface. Such a structure can increase the pressure of the standard pressure weight on the surface of the tire without damaging the tire, which is beneficial to reducing the overall weight of the device.

The top of the detection cylinder is provided with an annular cylinder limit boss, the inner diameter of the cylinder limit boss is greater than the outer diameter of the detection mark rod, but smaller than the outer diameter of the standard pressure weight; The top end is provided with a circular marking rod limiting boss, and the outer diameter of the marking rod limiting boss is larger than the inner diameter of the barrel limiting boss. Such a structure can ensure that the standard pressure weight will not be separated from the detection cylinder, which is convenient to carry and avoids the loss of parts.

Due to the adoption of the above technical solution, compared with the prior art, the present invention uses a standard pressure weight to detect a standard sample to obtain a standard depth, and then quickly detects the product to be tested, only needing to compare the measured depth with the standard depth, You can judge whether the product is qualified. The structure of setting the standard pressure weight in the detection cylinder can ensure that the standard pressure weight can be pressed down in the vertical direction, ensuring the accuracy of the test, and the detection mark rod is set, so that the detection result can be quickly and accurately known, which is extremely It greatly simplifies the operation process, is very suitable for on-site online use, and has good detection accuracy. The method of the invention is simple and easy to implement, the adopted device has simple structure, low manufacturing cost and good use effect.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention;

Accompanying drawing 2 is the use schematic diagram of the present invention.

detailed description

Embodiments of the present invention: a simple and quick method for identifying the hardness of engineering machinery tires, setting a standard pressure weight with a constant weight, placing the standard pressure weight on the surface of a standard sample of engineering machinery tires with qualified hardness, and using the self-weight of the standard pressure weight to adjust the hardness of the engineering machinery Extrude the standard sample of the tire to obtain an extrusion depth, which is recorded as the standard depth, and then use the same method to test the standard pressure weight of the construction machinery tire to be tested to obtain the detection depth, and compare the detection depth with the standard depth. If the detection depth is greater than the standard depth, it is identified that the hardness of the construction machinery tire to be tested is unqualified, and if the detection depth is less than or equal to the standard depth, then the hardness of the construction machinery tire to be tested is identified as qualified.

A simple and quick device for identifying the hardness of construction machinery tires, including a detection cylinder 1, the two ends of the detection cylinder 1 are open, the middle of which is a cylindrical cavity, and a cylindrical standard pressure gauge is arranged in the cavity of the detection cylinder 1. The weight 2 is provided with a detection mark rod 3 on the top of the standard pressure weight 2, and an identification block 4 is arranged on the detection mark rod 3; the bottom of the standard pressure weight 2 is an inverted cone structure, and its bottom end is an arc Surface; the top of the detection cylinder 1 is provided with an annular cylinder limit boss 5, the inner diameter of the cylinder limit boss 5 is larger than the outer diameter of the detection mark rod 3, but smaller than the outer diameter of the standard pressure weight 2 diameter; the top of the detection mark rod 3 is provided with a circular mark rod limit boss 6, and the outer diameter of the mark rod limit boss 6 is greater than the inner diameter of the cylinder limit boss 5.

When in use, first test the standard sample of OTR tires with qualified hardness, and under the condition that the standard weight 2 is pressed into the standard sample and is stable, the marking block 4 is positioned on the detection marking rod 3, so that the user can observe from the horizontal position To the identification block 4, the observed height of the identification block 4 is about 1 mm (in this embodiment, the identification block 4 can use a colored sticker, as long as the size is sufficient for the user to clearly observe), and the identification is determined After the position of the block 4, the device of the present embodiment adopts the above method to detect the product to be tested. After the detection step is completed, as long as the user can observe the identification block 4 at the horizontal position, it means that the hardness of the product to be tested meets the requirements. And if the identification block 4 cannot be seen on the horizontal position, then the hardness of the product is unqualified.

In the present invention, the cavity of the detection cylinder 1 and the standard pressure weight 2 are in clearance fit, and are coated with a lubricant.

In order to verify the technical effect of the present invention, the applicant selected 100 produced but untested OTR tires from Guizhou Tire Factory, and used the method and device of the present invention to detect these 100 OTR tires, and Record the test results; then these 100 engineering machinery tires are tested by the current conventional hardness test method, and the test results are recorded, and the test results of the two methods are compared. This method is completely consistent with the results of the conventional test method. The time used by the solution of the invention is less than half of that of the original method, and the device has simple structure, low cost and fast and effective detection results.

Claims (4)

1. A method for easily and quickly identifying the hardness of construction machinery tires is characterized in that: a standard pressure weight with a constant weight is set, the standard pressure weight is placed on the surface of a standard sample of construction machinery tires whose hardness is qualified, and the self-weight of the standard pressure weight is used to Extrude the standard sample of OTR tire to obtain an extrusion depth, which is recorded as the standard depth, and then use the same method to test the standard pressure weight of the OTR tire to obtain the detection depth, and compare the detection depth with the standard depth. In contrast, if the detection depth is greater than the standard depth, the hardness of the construction machinery tire to be tested is identified as unqualified, and if the detection depth is less than or equal to the standard depth, the hardness of the construction machinery tire to be tested is identified as qualified. 2. A device for realizing the method as claimed in claim 1, which is simple and quick to identify the hardness of construction machinery tires, comprising a detection cylinder (1), characterized in that: both ends of the detection cylinder (1) are open, and the middle It is a cylindrical cavity, and a cylindrical standard pressure weight (2) is arranged in the cavity of the detection cylinder (1), and a detection mark rod (3) is arranged on the top of the standard pressure weight (2). An identification block (4) is provided on the rod (3). 3. The device for quickly and easily identifying the hardness of construction machinery tires according to claim 2, characterized in that: the bottom of the standard weight (2) is an inverted conical structure, and its bottom end is an arc surface. 4. The simple and quick device for identifying the hardness of construction machinery tires according to claim 2, characterized in that: an annular cylinder limit boss (5) is arranged on the top of the detection cylinder (1), and the cylinder The inner diameter of the body limit boss (5) is larger than the outer diameter of the detection marking rod (3), but smaller than the outer diameter of the standard pressure weight (2); a circular marking rod limiter is arranged on the top of the detection marking rod (3). Position boss (6), the outer diameter of marking rod limit boss (6) is greater than the inner diameter of cylinder body limit boss (5).