CN219433995U - Cutter abrasion detection device of shield tunneling machine - Google Patents

Abstract

The utility model discloses a cutter abrasion detection device of a shield machine, which solves the problems of complex arrangement and non-visual detection of cutter abrasion detection pipelines in the prior art. The utility model discloses a cutter abrasion detection device of a shield machine, which comprises a dye and odorant pressurizing and mixing mechanism arranged in a cutter head, wherein a cutter is arranged on the front panel of the cutter head, a blind hole channel is arranged in the cutter, the dye and odorant pressurizing and mixing mechanism is communicated with the blind hole channel through a pipeline, and an image sensor and an odor sensor are arranged on the cutter head and/or a shield body; the image sensor and the smell sensor are electrically connected with the background sensor controller. The cutter abrasion detection device has no harsh requirements on the arrangement space, and meets the installation requirement of a small space; on the premise of a certain cutter disc diameter, more abrasion detection points can be arranged compared with the prior art, and the accuracy of fixed-point abrasion detection is improved.

Description

Cutter abrasion detection device of shield tunneling machine

Technical Field

The utility model relates to the technical field of shield machine cutter abrasion detection, in particular to a shield machine cutter abrasion detection device.

Background

At present, the existing cutter detection technology mainly comprises two types: one is hydraulic cutter wear detection, such as the patent with the publication number CN 202187770U of an end cover fixed type shield machine single-edge hob with a wear display function; the other is the continuous detection of the wear of the resistance type cutter with a sensor; a patent of a shield machine cutter abrasion detection system with publication number of CN 210803171U. However, in order to transmit the abrasion information into the shield machine, cables and pipelines, particularly a small-diameter shield machine, are required to be arranged, and because the arrangement space is limited, a plurality of abrasion detection cutters cannot be provided, and the abrasion of the cutters occurs when the abrasion exceeds the expected situation, so that an intuitive and easy-to-judge cutter abrasion detection device and method for the shield machine are needed.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a cutter abrasion detection device of a shield machine, which solves the problems of complex arrangement and non-visual detection of cutter abrasion detection pipelines in the prior art.

The technical scheme of the utility model is realized as follows: the cutter abrasion detection device of the shield machine comprises a dye and odorant pressurizing and mixing mechanism arranged in a cutter head, wherein a cutter is arranged on the front panel of the cutter head, a blind hole channel is arranged in the cutter, the dye and odorant pressurizing and mixing mechanism is communicated with the blind hole channel through a pipeline, and an image sensor and an odor sensor are arranged on the cutter head and/or a shield body; the image sensor and the smell sensor are electrically connected with the background sensor controller.

Further preferably, the cutterhead is a spoke cutterhead, and the dye and odorant pressurizing and mixing mechanism is located inside spokes.

Further preferably, the dye and odorant pressurizing and mixing mechanism comprises a pressure tank, the pressure tank is located in an installation cavity in the cutterhead, an outlet of the pressure tank is communicated with the pipeline, and a pressure sensor for detecting the pressure in the pressure tank is arranged on the pressure tank.

Further preferably, the blind end of the blind hole channel faces the working face of the cutter, and the opening end of the blind hole channel is in sealing connection with the pipeline. Preferably, the cutter is a hob or a doctor blade.

Further preferably, a dye and odorant pressurized mixing mechanism corresponds to at least one cutter on the same cutterhead area. The dye and odorant pressurizing and mixing mechanisms corresponding to different cutterhead areas adopt dyes with different colors and/or odorants with different odors.

Further preferably, the image sensor and the odor sensor adopt a wireless communication module to carry out data transmission with the background sensor controller. The wireless communication module is a radio frequency communication module, a Bluetooth communication module or a 4G communication module.

The beneficial effects of the utility model are as follows: compared with the prior art, the cutter abrasion detection device has no harsh requirements on the arrangement space, and meets the installation requirement of a small space; on the premise of a certain cutter disc diameter, more abrasion detection points can be arranged compared with the prior art, and the accuracy of fixed-point abrasion detection is improved. In addition, according to the arrangement position and the set value of the abrasion loss, different dyes and odorants can be used, and according to the discharged color and smell, the position and the abrasion loss of the cutter with abnormal abrasion can be judged, so that the faults caused by the abnormal cutter are prevented, and the smooth tunneling of the shield is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic view of the present utility model in a state of being disposed on a cutterhead.

FIG. 2 is a schematic diagram of an initial state of a pressurized mixing mechanism for dye and odorant.

FIG. 3 is a schematic view of the dye and odorant pressurized mixing mechanism in a cutter worn state.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, in embodiment 1, a cutter wear detection device for a shield machine includes a dye and odorant pressurizing and mixing mechanism 2 disposed inside a cutter head 1, where the dye and odorant pressurizing and mixing mechanism 2 can rotate synchronously with the cutter head as a single component, and pipeline connection is reduced. The front panel of the cutterhead 1 is provided with a cutter 3, and the cutter 3 is a hob, a scraper or other excavation type cutters. A blind hole channel 4 is arranged in the cutter 3, and the dye and odorant pressurizing and mixing mechanism 2 is communicated with the blind hole channel 4 through a pipeline 5; the blind end of the blind hole channel 4 faces the working surface of the cutter 3, and the opening end of the blind hole channel 4 is in sealing connection with the pipeline 5. The inside of the dye and odorant storage mechanism 2 is filled with compressed gas in advance, so that the compressed gas can pressurize fluid of the dye and odorant storage device; in detail, as the pressure increases, the fluid of the dye and odorant reservoir is released to the excessive wear of the cutter through the pipe 8; the compressed gas should be a gas that causes the fluid of the dye and odorant storage device to be expelled. The distance between the release point of the duct 8 and the front end of the doctor blade 4 is equal to the wear length of the doctor blade 4 to be notified. The cutter head 1 is provided with an image sensor 6 and an air sensor 7, and the air sensor 6 detects leaked air and sends out an early warning signal; the image sensor 6 performs image acquisition on the slag soil or the face soil. The image sensor 6 and the odor sensor 7 are electrically connected with the background sensor controller. The image sensor 6 and the odor sensor 7 may also be provided on the shield body, and detect the tool wear by detecting the color of the muck and the odor outside the shield body. The specific mode is that the image sensor 6 and the odor sensor 7 adopt a wireless communication module to carry out data transmission with a background transmission controller; the wireless communication module is a radio frequency communication module, a Bluetooth communication module or a 4G communication module; the wireless transmission mode is adopted, so that the pipeline connection is further reduced, and a plurality of cutter wear detection can be provided.

In the specific implementation, when the abrasion loss of the cutter reaches a set value, namely after the blind hole channel 4 is abraded, dye and odorant can be sprayed into soil body of the face, and the abrasion condition of the cutter is judged through the color and the smell attached to the soil body. The method can confirm the wear information even at a position far away from the host machine by an intuitive mode of transmitting the wear information through colors and smell, thereby rapidly and timely judging the tool replacement.

As shown in fig. 2 and 3, in embodiment 2, on the basis of embodiment 1, the cutterhead 1 is a spoke cutterhead, the dye and odorant pressurizing and mixing mechanism 2 is located inside a spoke 8, and a mounting cavity 9 for mounting the dye and odorant pressurizing and mixing mechanism 2 is reserved inside the spoke.

As a further preferable scheme, the dye and odorant pressurized mixing mechanism 2 comprises a pressure tank 21, the pressure tank 21 stores at least one fluid of pigment and odorant, the pressure tank 21 is located in the installation cavity 9 inside the cutterhead 1, an outlet of the pressure tank 21 is communicated with the pipeline 5, a pressure sensor 22 for detecting the pressure inside the pressure tank 21 is arranged on the pressure tank 21, and the pressure sensor 22 is also in data transmission with a background transmission controller by adopting a wireless communication module. The compressed gas is filled in the pressure tank in advance, so that the fluid of the pigment and the odorant can be pressurized, the soil body can be timely reached at the first time of cutter abrasion, and timely detection is facilitated.

In this embodiment, one dye and odorant pressurizing and mixing mechanism 2 corresponds to at least one cutter 3 on the same cutter head area, and a plurality of dye and odorant pressurizing and mixing mechanisms 2 can be adopted for the same cutter head area to correspond to a plurality of cutters. The dye and odorant pressurizing and mixing mechanism 2 corresponding to different cutterhead areas adopts dyes with different colors, and also can adopt odorants with different odors. Namely, the cutter on the cutter disc is divided into a plurality of different areas, preferably 4-6 areas can be divided according to the central angle of the cutter disc, the dye adopted by each area is different, the area of the cutter disc where the worn cutter is located can be timely judged according to the color in the detection process, and then the specific position of the worn cutter disc can be determined according to the pressure sensor of the pressure in the pressure tank, so that the cutter wear fault can be intuitively and timely found.

Other structures are the same as in embodiment 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (9)

1. The utility model provides a shield constructs quick-witted cutter wearing and tearing detection device which characterized in that: the device comprises a dye and odorant pressurizing and mixing mechanism (2) arranged in a cutter head (1), wherein a cutter (3) is arranged on a front panel of the cutter head (1), a blind hole channel (4) is arranged in the cutter (3), the dye and odorant pressurizing and mixing mechanism (2) is communicated with the blind hole channel (4) through a pipeline (5), and an image sensor (6) and an odor sensor (7) are arranged on the cutter head (1) and/or a shield body (10); the image sensor (6) and the odor sensor (7) are electrically connected with the background sensor controller.

2. The shield tunneling machine cutter wear detection apparatus of claim 1, wherein: the cutterhead (1) is a spoke cutterhead, and the dye and odorant pressurizing and mixing mechanism (2) is located in spokes (8).

3. The shield tunneling machine cutter wear detection apparatus according to claim 1 or 2, characterized in that: the dye and odorant pressurizing and mixing mechanism (2) comprises a pressure tank (21), wherein the pressure tank (21) is positioned in a mounting cavity (9) in the cutterhead (1), an outlet of the pressure tank (21) is communicated with the pipeline (5), and a pressure sensor (22) for detecting the pressure in the pressure tank (21) is arranged on the pressure tank (21).

4. The shield tunneling machine cutter wear detection apparatus according to claim 3, wherein: the blind end of the blind hole channel (4) faces the working surface of the cutter (3), and the opening end of the blind hole channel (4) is in sealing connection with the pipeline (5).

5. The shield tunneling machine cutter wear detection apparatus of claim 4, wherein: the cutter (3) is a hob or a scraper.

6. The shield tunneling machine cutter wear detection apparatus according to claim 1 or 2 or 3 or 4, characterized in that: a dye and odorant pressurizing and mixing mechanism (2) corresponds to at least one cutter (3) on the same cutter head area.

7. The shield tunneling machine cutter wear detection apparatus of claim 6, wherein: the dye and odorant pressurizing and mixing mechanism (2) corresponding to different cutterhead areas adopts dyes with different colors and/or odorants with different odors.

8. The shield tunneling machine cutter wear detection apparatus of claim 7, wherein: the image sensor (6) and the odor sensor (7) adopt a wireless communication module to carry out data transmission with a background sensor controller.

9. The shield tunneling machine cutter wear detection apparatus of claim 8, wherein: the wireless communication module is a radio frequency communication module, a Bluetooth communication module or a 4G communication module.