Cutter detection device

Abstract

The utility model provides a cutter detection device, which is characterized in that an inner concave part on a base body of the device is attached to the outer contour of a blade part of a hob ring to be detected during measurement, and probes arranged in a plurality of blind holes distributed along the inner concave part are subjected to magnetic attraction force generated between a magnet at one end of each probe and the blade part of the hob ring to be detected; the probes slide out of the blind holes, abut against the blade part of the hob ring to be measured and are adsorbed on the surface of the hob ring, so that the shape and wear degree information of the hob is obtained through the length of each probe protruding out of the surface of the inner concave part, multi-point contact measurement of the measurement position of the hob is realized through the multi-probe design, the wear state of the hob can be reflected comprehensively and visually, and the measurement accuracy is improved. Especially, the top morphology of the cutter ring can be measured.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection devices, and particularly relates to a tool detection device. Background Art

[0002] During the construction of shield tunnels, the hob is the core cutting tool of the cutter head of the tunneling machine, and its state and performance directly affect the tunneling efficiency and project cost. The hob tool will continuously wear during use. Affected by various factors such as rock hardness, construction environment, tunneling speed, and hob material characteristics, the tool will have different degrees of wear and present different wear forms such as cutting edge wear, tool body wear, and rolling bearing damage. The above wear forms will lead to a reduction in the cutting efficiency of the hob, and even the need to replace the hob, increasing the construction cost and downtime. Therefore, the accurate measurement and analysis of the wear condition of the hob are of great significance for optimizing tunneling parameters, extending the life of the hob, and improving construction efficiency.

[0003] At present, there are two types of measurement methods for hob wear and its morphology: First, non-contact measurement, such as laser scanning and three-dimensional photogrammetry, can provide high-precision wear data, but its cost is high, the equipment is complex, and it is difficult to ensure the reliability and stability of measurement under complex working conditions such as dust and muddy water. Second, contact measurement, such as mechanical direct measurement. The Chinese patent with the publication number CN220250878U discloses a new type of cutter ring wear measurement ruler, which has a simple structure, low cost, and strong adaptability, and has a wider application prospect in actual projects. However, traditional mechanical measurement tools usually can only obtain a single parameter of the hob wear amount and cannot comprehensively reflect the wear morphology characteristics of the hob, such as details of cutting edge breakage, indentation, and wear grooves. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a tool detection device, which can solve the technical problems raised in the background art and intuitively reflect the wear morphology characteristics of the hob.

[0005] The utility model provides a tool detection device, which includes a base body. An inner concave part matching the outer contour of the cutting edge of the hob to be measured is arranged on the base body. The tool detection device also includes a plurality of blind holes and a plurality of probes, and the probes correspond to the blind holes one by one;

[0006] The blind holes are arranged along the inner concave part;

[0007] The probes are arranged in the blind holes and are slidably connected with the blind holes;

[0008] A magnet is arranged at one end of the probe close to the opening of the blind hole;

[0009] The probe has a first state and a second state;

[0010] In the first state, the probe is held within the blind hole;

[0011] In the second state, the probe abuts against the cutting edge of the hob ring to be measured.

[0012] According to the tool detection device provided by the present utility model, in a preferred embodiment, the blind holes are uniformly arranged along the concave portion.

[0013] In a preferred embodiment, the tool detection device provided by the present utility model further includes a spring, and the spring is disposed between the bottom of the blind hole and the probe.

[0014] According to the tool detection device provided by the present utility model, in a preferred embodiment, a scale is provided along the length direction on the outer peripheral surface of the column body of the probe.

[0015] According to the tool detection device provided by the present utility model, in a preferred embodiment, the scale covers a light-emitting coating, and the light-emitting coating is a photoluminescent coating.

[0016] According to the tool detection device provided by the present utility model, in a preferred embodiment, the scale includes warning scales.

[0017] The present utility model has the following beneficial effects:

[0018] The present utility model provides a tool detection device. During measurement, the concave portion on the base body of the device fits against the outer contour of the cutting edge of the hob ring to be measured. The probes arranged in the plurality of blind holes along the concave portion are subjected to the magnetic suction force generated between the magnet at one end thereof and the cutting edge of the hob ring to be measured, so that the probes slide out of the blind holes to abut against the cutting edge of the hob ring to be measured and adsorb on the surface of the hob ring. Thus, information on the tool morphology and wear degree is obtained through the length of each probe protruding from the surface of the concave portion.

[0019] The present utility model has the following beneficial effects:

[0020] 1) The design of multiple probes realizes multi-point contact measurement of the measurement positions of the hob, and can comprehensively and intuitively reflect the wear state of the hob, especially the measurement of the morphology of the top of the hob ring;

[0021] 2) The setting of the scale on the probe and the scale including warning scales enables the measurement results to be directly converted into quantitative data, facilitating the construction personnel to quickly evaluate the use condition of the hob and formulate corresponding replacement or maintenance plans;

[0022] 3) The probe is connected to the blind hole through a spring. After the measurement is completed, under the action of the spring, the probe is pulled back into the blind hole, so that all the probes return to the state to be measured, avoiding measurement errors caused by poor sliding, incomplete reset or even non-reset of the probe;

[0023] 4) The scale-covered luminous coating can still show the measurement results in low-light conditions, and the device can be used in different construction environments, with strong adaptability.

[0024] In summary, a tool detection device provided by the present utility model not only improves the accuracy and efficiency of measuring the wear morphology of hob cutters, but also significantly reduces the difficulty and cost of on-site operations, and has important practical value for the management and optimization of tunnel boring projects. Description of the Drawings

[0025] Figure 1 is an overall schematic diagram of a tool detection device provided by some embodiments of the present utility model,

[0026] Figure 2 is a cross-sectional schematic diagram of a tool detection device provided by some embodiments of the present utility model,

[0027] Figure 3 is an overall schematic diagram of a probe provided by some embodiments of the present utility model.

[0028] Description of the Reference Numerals:

[0029] 001. Edge of the hob cutter ring to be measured

[0030] 100. Substrate,

[0031] 101. Concave portion,

[0032] 110. Blind hole,

[0033] 120. Probe,

[0034] 121. Magnet,

[0035] 122. Scale

[0036] 130. Spring. Detailed Embodiments

[0037] To more clearly and completely describe the technical solutions of the present utility model, the following further details the present utility model through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, and various changes can be made within the scope defined by the rights of the present utility model.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] As Figure 1 and Figure 2 As shown, this utility model provides a tool detection device, which includes a base body (100). An inner concave portion (101) matching the outer contour of the cutting edge of the hob to be measured (001) is provided on the base body (100). It also includes a plurality of blind holes (110) and a plurality of probes (120), and the probes (120) correspond to the blind holes (110) one by one; the blind holes (110) are arranged along the inner concave portion (101); the probes (120) are arranged in the blind holes (110) and are slidably connected to the blind holes (110); a magnet (121) is provided at one end of the probe (120) close to the opening of the blind hole (110);

[0041] The probe (120) has a first state and a second state;

[0042] In the first state, the probe (120) remains in the blind hole (110) and is in a state to be measured;

[0043] In the second state, the probe (120) abuts against the cutting edge of the hob to be measured (001) and is in a measuring state. The specific process is as follows: The inner concave portion (101) on the base body (100) of the tool detection device provided by this utility model is attached to the outer contour of the cutting edge of the hob to be measured (001). The probe (120) arranged in the blind hole (110) along the inner concave portion (101) is affected by the magnetic attraction force generated between the magnet (121) at one end of it and the cutting edge of the hob to be measured, so that the probe (110) slides out of the blind hole (110) and abuts against the cutting edge of the hob to be measured and adsorbs on the surface of the hob ring. At this time, the tool morphology and wear degree information can be obtained through the length of each probe (120) protruding from the surface of the inner concave portion. The design of the above-mentioned multiple probes realizes multi-point contact measurement at the measurement positions of the hob, and can comprehensively and intuitively reflect the wear state of the hob, especially the morphology of the top of the hob ring.

[0044] In an alternative embodiment of the present utility model, the position of the blind hole 110 can be set at different positions of the concave portion 101 according to the shape of the tool and the different force-receiving surfaces, and the density of the hole arrangement can be adjusted accordingly. Preferably, the blind holes 110 are also evenly arranged along the concave portion 101.

[0045] As Figure 3 shown, in an alternative embodiment of the present utility model, a spring 130 is further included. The spring 130 is connected to the bottom of the blind hole 110 and the probe 120. In this embodiment, in the first state, the spring 130 is in a relaxed state; in the second state, the probe 120 slides out of the blind hole 110 under the magnetic suction force, and the spring 130 connected to the probe 120 is stretched. After the measurement is completed, the tool detection device is removed, and under the action of the spring 130, the probe 120 is pulled back into the blind hole, so that all the probes 120 return to the first state, avoiding measurement errors caused by the probe 120 not sliding smoothly, not resetting completely or not resetting at all.

[0046] As Figure 3 shown, in an alternative embodiment of the present utility model, a scale 122 is provided on the outer peripheral surface of the column body of the probe 120 along the length direction; optionally, the scale 122 is provided with a line segment scale by grooving along the length direction, or the scale 122 can be provided with a circular scale around the probe 120; the setting of the scale 122 enables the measurement personnel to directly read the wear amount of the tool through the scale, and the measurement result is directly converted into quantitative data, which is convenient for the measurement personnel to evaluate the use condition of the hob and formulate corresponding replacement or maintenance plans.

[0047] In order to give an early warning of excessive wear amount, in an alternative embodiment of the present utility model, the scale 122 includes a warning scale, and the warning scale on the probe 120 is marked at the position where the tool wear degree exceeds the wear standard. Optionally, the warning scale mark is red.

[0048] In an alternative embodiment of the present utility model, the scale 122 is covered with a light-emitting coating, and the light-emitting coating is a photoluminescent coating. Covering the scale 122 with the light-emitting coating can still show the measurement result in a measurement environment with insufficient light, and the device can be used in different construction environments, with strong adaptability.

[0049] In an alternative embodiment of the present utility model, the scale 122 is provided with a color gradient one by one along the length direction of the probe 120. In this embodiment, different colors correspond to different scales. For example, when the wear degree is relatively light, the scale at the position where the probe 120 in this device extends beyond the blind hole 110 is green; when the wear degree is close to the warning scale, the scale color can be marked as orange, and when it exceeds the warning scale, the scale color is red. Preferably, different colors of fluorescent coatings are covered on the scale according to different length positions. During measurement, when the scales of most probes 120 show orange or red, the measurement personnel can intuitively and quickly judge whether the tool needs to be replaced without reading the values.

[0050] A tool detection device provided by the present utility model can also be combined with an image recording device to quickly record the current tool wear state, facilitating the formation of a measurement work log.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

Claims

1. A tool detection device, comprising a base body (100), wherein a concave portion (101) matching the outer contour of the cutting edge of the hob ring (001) to be measured is provided on the base body (100), and is characterized in that, It also includes a plurality of blind holes (110) and a plurality of probes (120), and the probes (120) correspond to the blind holes (110) one by one; The blind holes (110) are arranged along the concave portion (101); The probes (120) are arranged in the blind holes (110) and are slidably connected to the blind holes (110); A magnet (121) is provided at one end of the probe (120) close to the opening of the blind hole (110); The probe (120) has a first state and a second state; In the first state, the probe (120) is kept in the blind hole (110); In the second state, the probe (120) abuts against the cutting edge of the hob ring to be measured (001).

2. The tool detection device according to claim 1, characterized in that, The blind holes (110) are uniformly arranged along the concave portion (101).

3. A tool detection device according to claim 1, characterized in that, It also includes a spring (130), and the spring (130) is arranged between the bottom of the blind hole (110) and the probe (120).

4. A tool detection device according to claim 1, characterized in that, A scale (122) is provided on the outer peripheral surface of the column body of the probe (120) along the length direction.

5. The tool detection device according to claim 4, characterized in that, The scale (122) is covered with a light-emitting coating, and the light-emitting coating is a photoluminescent coating.

6. A tool detection device according to claim 4 or 5, characterized in that, The scale (122) includes warning scales.

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