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A device and method for measuring the wear amount and wear shape of a disc hob

A technology for measuring discs and wear, which is applied in the direction of measuring devices, instruments, etc., can solve the problems of large measurement errors of hob wear and the inability to measure the wear shape of hobs, and achieve the effect of overcoming large errors and saving time for the device

Active Publication Date: 2019-04-30
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a device and method for measuring the wear amount and wear shape of a disc-shaped hob to solve the problems in the prior art that the hob wear amount measurement error is large and the wear shape of the hob cannot be measured.

Method used

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  • A device and method for measuring the wear amount and wear shape of a disc hob
  • A device and method for measuring the wear amount and wear shape of a disc hob
  • A device and method for measuring the wear amount and wear shape of a disc hob

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1, such as figure 1 As shown, the housing 1 of the measuring device is provided with a recessed part 2 , and the hob is placed in the recessed part 2 to contact with the stylus 3 .

[0047] The stylus 3 is a plurality of stylus, and the stylus 3 can be set in multiple rows according to the measurement accuracy requirements, and the multiple stylus 3 in each row are arranged in parallel and closely, and are connected as a whole through the stylus connector, and the movable Inserted in the recessed part 2 of the housing 1, the material of the contact pin 3 is a high-strength alloy material. Such as figure 2 As shown, the contact pin 3 includes two parts: a needle body 31 and a miniature spring 32 , and the miniature spring 32 is sleeved on the needle body 31 . The device contacts the outer surface of the hob through the contact pins 3. In the non-working state, all the contact pins 3 are in a natural unstressed state, and the exposed end of the needle body 31 o...

Embodiment 2

[0052] Embodiment 2 is different from the above-mentioned embodiment 1, such as image 3 As shown, the housing 1 is also provided with an early warning module 7 . The early warning module 7 is connected with the microprocessor 5, and is used for receiving the comparison result of comparing the hob wear value recorded in the microprocessor 5 with the preset hob wear limit value and the knife position wear limit value. The early warning module 7 includes an LED display 13 and an LED lamp 14. The LED display 13 is used to display the wear value and the wear shape of the hob, and the LED lamp 14 displays different colors according to the comparison result. When the wear value of the hob measured<the wear limit value of the tool position, the LED light 14 is green; when the wear limit value of the tool position≦the measured wear value of the hob<the limit wear value of the hob, the LED light 14 It is yellow; when the measured wear value of the hob ≧ the limit wear value of the hob...

Embodiment 3

[0053] Embodiment 3, different from the above-mentioned Embodiments 1 and 2, the measuring device also includes a data storage module 8, the data storage module 8 is located in the housing 1, and is connected to the microprocessor 5, and is used to store the cutter of the hob Serial number, tool location number, measurement time, measurement times, measurement results, operator information, etc., lay the foundation for subsequent research and analysis.

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Abstract

The invention discloses a device for measuring wear degree and wear shape of a disc-shaped hob. The device comprises a shell, multiple contact pins, a contact pin displacement measuring sensor and a microprocessor, a concave part is arranged on the shell and used for placement of the contact pins and the hob, the contact pins are movably inserted in the concave part and used for contacting with the outer surface of the hob, the contact pin displacement measuring sensor is positioned in the shell, positioned right behind the contact pins and used for collecting calibrated displacement and measured displacement, the microprocessor is used for determining displacement differences according to the calibrated displacement and the measured displacement, comparing the displacement differences, marking acquired maximum displacement difference as hob wear value and performing curve fitting on the measured displacement to acquire wear shape of the hob. By adopting the device, accurate wear degree can be acquired, and the wear shape of the hob can be acquired by performing curve fitting on the measured displacement.

Description

technical field [0001] The invention relates to the field of hob measurement, in particular to a device for measuring the wear amount and wear shape of a disc-shaped hob. Background technique [0002] The disc hob installed on the cutter head is the main tool for tunnel excavation, and it is also the key component and vulnerable part of the full-face rock boring machine equipment. The rim is the removable cutting edge mounted on the hob body and is the main part of the hob wear. During the rock breaking process of full-face rock boring machine, tool wear has an important influence on the cost, speed and efficiency of construction, and is an important content of the research on the excavability of full-face rock boring machine. [0003] At present, the usual method of measuring hob wear in engineering is that the staff enter the tool cabin to check the tool, measure with a special ruler, manually read the ruler, collect data, and bring the data back for processing and analys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/02G01B21/20
CPCG01B21/02G01B21/20
Inventor 薛亚东赵丰赵瀚翔杨睿
Owner TONGJI UNIV
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