CN212539102U - Cutter head abrasion detection device - Google Patents
Cutter head abrasion detection device Download PDFInfo
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- CN212539102U CN212539102U CN202021722506.0U CN202021722506U CN212539102U CN 212539102 U CN212539102 U CN 212539102U CN 202021722506 U CN202021722506 U CN 202021722506U CN 212539102 U CN212539102 U CN 212539102U
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Abstract
The utility model relates to a blade disc wearing and tearing detection device, include: the detection heads are arranged on the surface of the cutter head at intervals, and blind holes are formed in the detection heads; the air bag is fixed at the back of the cutter head corresponding to the detection head and is communicated with the corresponding detection head through a pipeline so as to introduce gas into the blind hole; the cylinder is fixedly arranged at the back of the cutter head and communicated with the pipeline; and the sensor is arranged corresponding to the air cylinder and is electrically connected with a controller of the shield tunneling machine, the detection head is worn until the blind hole is exposed, so that gas in the blind hole leaks, the piston rod of the air cylinder correspondingly contracts, and the sensor detects that the position of the piston rod of the air cylinder changes to send an alarm to the controller. The utility model discloses the effectual problem of having solved hydraulic oil and revealing easily utilizes atmospheric pressure to replace hydraulic oil, avoids causing the pollution to the soil body, water on every side, also avoids spending manpower and materials to clear up the hydraulic oil of revealing, has improved the efficiency of construction, keeps the construction environment clean.
Description
Technical Field
The utility model relates to a shield constructs construction field, refers in particular to a blade disc wearing and tearing detection device.
Background
In the shield propelling process, the cutter head cuts soil, and after a period of time, the cutter head is worn, so that a detection device is required to be arranged on the cutter head, and when the detection device detects that the abrasion loss of the cutter head exceeds a set limit, a constructor maintains the cutter head and replaces the worn cutter.
Present detection device utilizes hydraulic oil to detect mostly, set up the blind hole on the blade disc promptly, and let in hydraulic oil in the blind hole, if the blind hole is worn through, then hydraulic oil reveals, make the pressure in the pipeline diminish, the sensor senses pressure diminishes and sends out the police dispatch newspaper, this kind of mode is worn through the back at the blind hole, the direct blowout of hydraulic oil and the soil body in entering blade disc the place ahead, in the water, cause the pollution to the surrounding environment easily, in addition, hydraulic oil is probably revealed inside the shield, constructor clearance hydraulic oil of revealing is comparatively difficult, be unfavorable for improving the efficiency of construction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a blade disc wearing and tearing detection device, solved the problem that hydraulic oil was revealed easily, utilized atmospheric pressure to replace hydraulic oil, avoided causing the pollution to soil body, water on every side, also avoided spending manpower and materials to clear up the hydraulic oil of revealing, improved the efficiency of construction, keep construction environment clean.
The technical scheme for realizing the purpose is as follows:
the utility model provides a blade disc wearing and tearing detection device, include:
the detection heads are arranged on the surface of the cutter head at intervals, blind holes are formed in the detection heads, and the openings of the blind holes face the inside of the shield tunneling machine;
the air bag is fixed at the back of the cutter head corresponding to the detection head and is communicated with the corresponding detection head through a pipeline so as to introduce gas into the blind hole;
the cylinder is fixedly arranged at the back of the cutter head and communicated with the pipeline; and
the sensor that corresponds the cylinder setting and be connected with the controller electricity of shield structure machine is worn and torn until the blind hole exposes through detecting the head for gas leakage in the blind hole, and then the piston rod of cylinder corresponds the shrink, and the position that this sensor detected the piston rod of cylinder changes in order to send out the police dispatch newspaper to the controller.
The utility model provides a blade disc wearing and tearing detection device, through injecting high-pressure gas into the blind hole, rotate when the blade disc, the detection head is exposed until the blind hole by wearing and tearing, gas leakage in the blind hole this moment, atmospheric pressure in the pipeline diminishes, the piston rod shrink of cylinder, the position that the sensor detected the piston rod changes in order to send the police dispatch newspaper to the controller, the suggestion is changed or is maintained the blade disc, gaseous even leak can not pollute the peripheral soil body yet, also need not constructor to clear up, the problem of hydraulic oil easy leakage has been solved, utilize atmospheric pressure to replace hydraulic oil, avoid the soil body around, the water causes the pollution, also avoid spending manpower and materials to clear up the hydraulic oil of revealing, the efficiency of construction is improved, keep the construction environment clean.
The cutter head abrasion detection device of the utility model is further improved in that the device also comprises a detection sheet fixedly arranged on a piston rod of the cylinder;
the sensor is arranged corresponding to the detection piece, and the piston rod of the air cylinder contracts to drive the detection piece to move, so that the sensor detects that the position of the detection piece changes, and an alarm is given to the controller.
The utility model discloses blade disc wearing and tearing detection device's further improvement lies in, should detect the piece and be the sheetmetal.
The utility model discloses blade disc wear detection device's further improvement lies in, and this sensor is proximity sensor.
The utility model discloses blade disc wear detection device's further improvement lies in, still including installing in the check valve of pipeline, and this check valve is located between cylinder and the gasbag.
The utility model discloses blade disc wearing and tearing detection device's further improvement lies in, and this sensor corresponds the cylinder and sets firmly the position between the soil storehouse of shield structure machine and blade disc.
The utility model discloses blade disc wear detection device's further improvement lies in, should detect the head and weld in the blade disc.
The utility model discloses blade disc wear detection device's further improvement lies in, and the surfacing welding that should detect the head is formed with the wearing layer.
Drawings
Fig. 1 is the overall structure state diagram of the cutter head abrasion detecting device of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the utility model provides a blade disc wearing and tearing detection device, through injecting high-pressure gas into the blind hole, rotate when the blade disc, detect the head and expose until the blind hole by wearing and tearing, gas leakage in the blind hole this moment, atmospheric pressure in the pipeline diminishes, the piston rod shrink of cylinder, the position that the sensor detected the piston rod changes in order to send the police dispatch newspaper to the controller, the suggestion is changed or is maintained the blade disc, gaseous even leak can not pollute the peripheral soil body yet, also need not constructor to clear up, the problem of hydraulic oil easily revealing has been solved, utilize atmospheric pressure to replace hydraulic oil, avoid to the soil body on every side, the water causes the pollution, also avoid spending manpower and materials to clear up the hydraulic oil of revealing, construction efficiency is improved, keep construction environment clean. The following describes the cutter head wear detection device of the present invention with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a state diagram of the overall structure of the cutter head wear detection device of the present invention. The cutter head wear detection device of the present invention will be described with reference to fig. 1.
As shown in fig. 1, the utility model discloses a blade disc wear detection device, include:
the detection heads 11 are arranged on the surface of the cutter head at intervals, blind holes are formed in the detection heads 11, and the openings of the blind holes face the inside of the shield tunneling machine;
the air bag 12 is fixed on the back of the cutter head corresponding to the detection head 11, and the air bag 12 is communicated with the corresponding detection head 11 through a pipeline 13 so as to introduce air into the blind hole;
a cylinder 131 fixedly arranged at the back of the cutter head and communicated with the pipeline 13; and
the sensor 14, which is arranged corresponding to the cylinder 131 and electrically connected with the controller 21 of the shield tunneling machine, is worn until the blind hole is exposed through the detection head 11, so that gas in the blind hole leaks, and then the piston rod of the cylinder 131 correspondingly contracts, and the sensor 14 detects that the position of the piston rod of the cylinder 131 changes to send an alarm to the controller 21.
Wherein, the side of the cutterhead facing the soil body to be excavated is the front part, and the side of the cutterhead facing the shield tunneling machine is the back part.
Preferably, the detection head 11 is welded to the cutter head, and the detection head 11 may be located on a panel of the cutter head or on a circumferential surface of the cutter head.
Preferably, a wear-resistant layer is formed on the surface of the detection head 11 by bead welding, so as to play a wear-resistant role.
As a preferred embodiment of the present invention, the device further comprises a detection sheet 1311 fixedly disposed on the piston rod of the cylinder 131;
the sensor 14 is disposed corresponding to the detecting plate 1311, and the piston rod of the cylinder 131 contracts to drive the detecting plate 1311 to move, so that the sensor 14 detects that the position of the detecting plate 1311 changes, and sends an alarm to the controller 21.
Specifically, the detection sheet 1311 is a metal sheet.
In particular, the sensor 14 is a proximity sensor.
Preferably, the sensor 14 corresponds to the cylinder 131 and is fixedly arranged between the soil bin and the cutter head of the shield tunneling machine, that is, the airbag 12, the detection head 11, the pipeline 13, the cylinder 131 and the detection piece 1311 all rotate along with the cutter head, the sensor 14 does not rotate along with the cutter head, when the cutter head rotates, the sensor 14 can sense the detection piece 1311 once at a certain interval, when the sensor 14 detects the detection piece 1311, a normal signal is transmitted to the controller 21, when the air pressure in the pipeline 13 decreases, the piston rod of the cylinder 131 contracts to drive the detection piece 1311 to displace, at this time, the sensor 14 cannot detect the detection piece 1311, when the sensor 14 does not detect the detection piece 1311, a normal signal is not transmitted to the controller 21, and when the controller 21 does not receive a normal signal within a certain time, the tunneling control program is locked, and the shield tunneling machine stops.
Further, a check valve 132 is arranged on the pipeline 13, the check valve 132 is located between the cylinder 131 and the air bag 12, when the blind hole is depressurized, soil or water outside the shield machine enters the pipeline 13, and the check valve 132 can prevent the soil or water from entering the air bag 12.
The utility model discloses a concrete implementation method as follows:
installing a detection head 11 on the surface of a cutter head, wherein the closed end of a blind hole faces towards a soil body to be excavated;
an air bag 12 is fixedly arranged on the back of the cutter head corresponding to the detection head 11, and the air bag 12 is communicated with the blind hole through a pipeline 13;
an air cylinder 131 is arranged on the back of the cutter head, the air cylinder 131 is communicated with a pipeline 13, and a detection sheet 1311 is fixedly arranged at the end part of a piston rod of the air cylinder 131;
the sensor 14 is fixedly arranged between the soil bin and the cutter head of the shield machine, the sensor 14 corresponds to the detection sheet 1311, the sensor 14 is electrically connected with the controller 21 of the shield machine, when the cutter head rotates, the air bag 12, the pipeline 13, the air cylinder 131, the detection sheet 1311 and the detection head 11 rotate together with the cutter head, and the sensor 14 does not rotate, so that the detection device does not need a rotary joint, the stability of the device is improved, and the cost is reduced;
the cutter head rotates, the sensor 14 can detect the primary detection piece 1311 after a certain time, normal information is sent to the controller 21, and the controller 21 controls the shield tunneling machine to conduct normal tunneling;
when the detection head 11 is worn until the blind hole is exposed, gas in the blind hole leaks, air pressure in the pipeline 13 is reduced, a piston rod of the air cylinder 131 contracts and drives the detection piece 1311 to move, the sensor 14 cannot detect the detection piece 1311 after a certain time, the sensor 14 does not send normal information to the controller 21, the controller 21 does not receive the normal information after a certain time, a tunneling program of the shield tunneling machine is locked, the shield tunneling machine is stopped, and at the moment, a constructor can maintain or replace a cutter head.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (8)
1. A cutter head wear detection device, comprising:
the detection heads are arranged on the surface of the cutter head at intervals, blind holes are formed in the detection heads, and the openings of the blind holes face the inside of the shield tunneling machine;
the air bag is fixed on the back of the cutter head corresponding to the detection head and is communicated with the corresponding detection head through a pipeline so as to introduce gas into the blind hole;
the air cylinder is fixedly arranged at the back of the cutter head and communicated with the pipeline; and
the sensor is arranged corresponding to the air cylinder and electrically connected with a controller of the shield tunneling machine, the detection head is worn until the blind hole is exposed, so that gas in the blind hole leaks, the piston rod of the air cylinder correspondingly contracts, and the sensor detects that the position of the piston rod of the air cylinder changes to send an alarm to the controller.
2. The cutter head wear detection device according to claim 1, further comprising a detection piece fixedly arranged on a piston rod of the cylinder;
the sensor is arranged corresponding to the detection piece, the piston rod of the air cylinder contracts to drive the detection piece to move, and then the sensor detects that the position of the detection piece changes to send an alarm to the controller.
3. The cutterhead wear detection apparatus of claim 2, wherein said sensing plate is a metal plate.
4. The cutterhead wear detection apparatus of claim 3, wherein said sensor is a proximity sensor.
5. The cutterhead wear detection apparatus of claim 1, further including a check valve mounted to said conduit, said check valve being positioned between said cylinder and said air bladder.
6. The cutterhead wear detection apparatus of claim 1, wherein said sensor corresponds to said cylinder and is fixedly disposed between the earth chamber of said shield tunneling machine and said cutterhead.
7. The cutterhead wear detection apparatus of claim 1, wherein said detection head is welded to said cutterhead.
8. The cutter head wear detection device according to claim 1, wherein a wear layer is formed on a surface of the detection head by build-up welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021722506.0U CN212539102U (en) | 2020-08-18 | 2020-08-18 | Cutter head abrasion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021722506.0U CN212539102U (en) | 2020-08-18 | 2020-08-18 | Cutter head abrasion detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212539102U true CN212539102U (en) | 2021-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021722506.0U Active CN212539102U (en) | 2020-08-18 | 2020-08-18 | Cutter head abrasion detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212539102U (en) |
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2020
- 2020-08-18 CN CN202021722506.0U patent/CN212539102U/en active Active
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