CN219589618U - TBM hob ring abrasion detection device - Google Patents
TBM hob ring abrasion detection device Download PDFInfo
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- CN219589618U CN219589618U CN202320812898.7U CN202320812898U CN219589618U CN 219589618 U CN219589618 U CN 219589618U CN 202320812898 U CN202320812898 U CN 202320812898U CN 219589618 U CN219589618 U CN 219589618U
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Abstract
The utility model discloses a TBM hob ring abrasion detection device, and belongs to the technical field of shield hob; the utility model comprises the following steps: the cutter body and the cutter ring are fixedly connected to the cutter body; the cutter body is connected with the cutter shaft through a bearing, and the cutter shaft is a hollow shaft with an inner hole; the inner wall of the cutter ring is provided with a detection hole extending towards the cutter ring blade part, and a return wire is arranged in the detection hole; the detection through hole sequentially penetrates through the cutter body and the cutter shaft so as to enable the detection hole to be communicated with an inner hole of the cutter shaft; the detection through hole is internally provided with a detection head structure and a conductor contacted with the detection head structure, and the loop-shaped wire is connected with the detection head structure; the utility model realizes that the abrasion condition of the cutter ring can be timely judged on the premise of not opening the bin, effectively ensures the construction progress, saves manpower and material resources and greatly saves the maintenance cost.
Description
Technical Field
The utility model relates to the technical field of shield hobs, in particular to a TBM hob ring abrasion detection device.
Background
The area of the country is wide, the topography is complex, the situation of alternating soft and hard strata is caused by the variability of the geological hydrologic conditions of each place, the compressive strength, the crack situation and the quartz content of the rock of different strata are all different, at present, the prediction of the abrasion situation of the hob in the engineering is mostly based on the data obtained by the rock abrasion experiment of the hob, the variability of the strata can cause a plurality of uncertain factors for the prediction of the cutter abrasion, especially when TBM tunneling construction encounters rock mass conditions with high abrasion, the abrasion of cutter head cutters is aggravated, the cutter abrasion detection and the cutter replacement account for 30% -40% of all working hours according to statistics, and the improvement of tunneling efficiency is seriously affected;
at present, the tool checking and replacing operation has high labor intensity and certain danger, if constructors do not detect the tool wear degree according to the standard operation rules, the worn tools are replaced in time, TBM tunneling operation is continuously carried out under the condition that the tools are worn severely, the rock breaking efficiency of the tools is reduced, the TBM tunneling speed is low, and when a large-area tool failure occurs on the cutterhead, serious engineering accidents such as disintegration of the cutterhead are caused. The cutter is a key component for rock breaking and tunneling of the tunnel boring machine and is a vulnerable component, and the quality of the cutter directly influences the rock breaking capacity and tunneling speed of the TBM, so that the cutter is a main factor influencing the construction economy. The TBM cutters are large in number, the maintenance difficulty is high, the information to be managed is various, the information amount is large, the management difficulty is extremely high, and the construction progress is greatly dependent on the integrity and the utilization rate of the cutter performance of the tunnel boring machine;
therefore, in view of the above problems, it is necessary to provide a TBM hob ring abrasion detection device capable of timely judging the situation of hob ring abrasion without opening a bin.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a TBM hob ring abrasion detection device.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model discloses a TBM hob ring abrasion detection device, which comprises:
the cutter comprises a cutter body and a cutter ring fixedly connected to the cutter body;
the cutter body is connected with a cutter shaft through a bearing, and the cutter shaft is a hollow shaft with an inner hole;
the inner wall of the cutter ring is provided with a detection hole extending towards the cutter ring blade part, and a return wire is arranged in the detection hole; and
the detection through hole sequentially penetrates through the cutter body and the cutter shaft so as to enable the detection hole to be communicated with an inner hole of the cutter shaft;
the detection through hole is internally provided with a detection head structure and a conductor in contact with the detection head structure, and the return wire is connected with the detection head structure; and also comprises
And the data wire is connected with the conductor and sequentially penetrates through the detection through hole and the inner hole of the cutter shaft to be connected with the binding post at the end part of the cutter shaft.
Further, the detection holes comprise a first detection hole and a second detection hole;
the second detection hole is formed in the bottom wall of the first detection hole, and the first detection hole and the second detection hole are both provided with the return wire.
Further, the distance between the bottom wall of the second detection hole and the tip of the blade part is 10-20 mm.
Further, the distance between the bottom wall of the first detection hole and the tip of the blade part is 25-35 mm.
Further, resin sealant is filled in the detection hole and the detection through hole and used for fixing the position of the return wire.
Further, the detection head structure comprises a collision bead connected with the loop-shaped electric wire and an elastic component for driving the collision bead to contact against the conductor;
the conductor comprises a copper ring and a carbon brush, and the carbon brush is connected with the data line.
Further, an insulator is further arranged in the detection through hole, and the detection head structure penetrates through the insulator to be in contact with the conductor.
Further, the elastic component is a compression spring, one end of the compression spring is in abutting contact with the collision bead, the other end of the compression spring is in abutting contact with the shoulder of the detection through hole, and the compression spring stretches to drive the collision bead to be in abutting contact with the conductor.
Further, a groove is formed in the outer wall of the cutter body, a connecting plate is fixedly connected to the groove, and the return wire penetrates through the connecting plate and enters the detection through hole.
Further, a temperature sensor is arranged in the inner hole of the cutter shaft, and the temperature sensor is connected with the wiring terminal circuit.
In the technical scheme, the TBM hob ring abrasion detection device provided by the utility model has the beneficial effects that:
1) The problems that the complicated geological environment is limited in the number of times of opening the bin and the abrasion condition of the cutter cannot be judged in time are avoided, the construction progress is effectively ensured, and manpower and material resources are saved;
2) The cutter ring is prevented from being worn and broken, and if the cutter cannot be stopped for replacing in the first time, the cutter ring can cause larger damage, the service lives of other parts of the cutter are effectively prolonged, and the maintenance cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of a TBM hob ring wear detection device disclosed in the present utility model;
FIG. 2 is a partial schematic view of a TBM hob ring wear detection device of the present utility model with a hob ring assembled on a hob body;
fig. 3 is a partial enlarged view of a TBM hob ring wear detection device disclosed by the utility model.
Reference numerals illustrate:
1. an electric wire; 2. a ball; 3. a connecting plate; 4. a resin sealant; 5. a spring; 6. a carbon brush; 7. binding posts; 8. a data line; 9. a copper ring; 10. an insulator; 11. a first detection hole; 12. a second detection hole;
100. a knife ring;
200. a cutter body;
300. and (5) a cutter shaft.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
See fig. 1;
the utility model discloses a TBM hob ring abrasion detection device, which comprises: a cutter ring 100 and a cutter body 200;
the outer wall of the cutter body 200 is fixedly connected with a cutter ring 100, the inner wall of the cutter body 200 is connected with a cutter shaft 300 through a bearing, the cutter shaft 300 is a hollow shaft with an inner hole, and the specific inner hole has a diameter phi of 20mm;
wherein, the inner wall of the knife ring 100 is provided with a detection hole extending towards the direction of the knife ring 100 edge, and two loops of electric wires 1 are arranged in the detection hole; and
the detection through hole sequentially penetrates through the cutter body 200, the bearings and the cutter shaft 300 so that the detection hole is communicated with the inner holes of the cutter shaft 300, specifically, the detection hole is formed in the middle position between the cutter body 200 and the cutter shaft 300 corresponding to the two bearings 200, the rectangular wire 1 penetrates into the detection through hole, and the diameter of the detection hole is preferably phi 6mm;
the detection through hole is internally provided with a detection head structure and a conductor in contact with the detection head structure, the loop-shaped electric wire 1 is connected with the detection head structure, the detection head structure is in contact with the conductor to form a conductive circuit, the detection device further comprises a data wire 8, and the data wire 8 sequentially penetrates through the detection through hole and the inner hole of the cutter shaft 300 and is connected with a binding post 7 at the end part of the cutter shaft 300.
See fig. 3;
preferably, the detecting head structure comprises a spring 2 connected with the electric wire 1 and an elastic component for driving the spring 2 to contact against a conductor, the conductor comprises a copper ring 9 and a carbon brush 6, and the carbon brush 6 is connected with a data wire 8.
In a specific embodiment, the detection through holes comprise a first detection through hole and a second detection through hole, the first detection through hole and the second detection through hole are coaxial, the first detection through hole is formed in the middle position between the cutter body 200 and the two bearings 200, and the second detection through hole is formed in the middle position between the cutter shaft 300 and the two bearings 200;
the spring part is a compression spring 5, one end of the compression spring 5 is in abutting contact with the spring 2, the other end of the compression spring is in abutting contact with a shoulder of the first detection through hole, and the compression spring 5 stretches to drive the spring 2 to be in abutting contact with the copper ring 9 and the carbon brush 6;
a carbon brush 6 is arranged in the second detection through hole, a data wire 8 penetrates through the second detection through hole to enter an inner hole of the cutter shaft 300, one end of the data wire 8 is connected with a conductor, and the other end penetrates through a through hole at the end part of the cutter shaft 300 and is connected with a binding post 7 at the end part of the cutter shaft 300 and is connected with an external detection equipment host through the binding post 7;
referring to fig. 2, preferably, the sensing holes include a first sensing hole 11 and a second sensing hole 12;
the bottom wall of the first detection hole 11 is provided with a second detection hole 12, the specific second detection hole 12 is a blind hole, the distance between the bottom wall of the second detection hole 12 and the tip of the blade part is 10-20 mm, preferably 15mm, the distance between the bottom wall of the first detection hole 11 and the tip of the blade part is 25-35 mm, preferably 30mm, the diameter of the first detection hole 11 is larger than the diameter of the second detection hole 12, specifically, the diameter of the first detection hole 11 is phi 6mm, and the diameter of the second detection hole is phi 4mm;
in order to ensure the stability of the circuit 1 in the detection hole and the detection through hole, preferably, the resin sealant 4 is filled in the detection hole and the detection through hole, the position of the circuit 1 is fixed through the resin sealant, and meanwhile, the insulativity between the circuit 1 and the knife ring 100 and the knife body 200 can be ensured, and the structure improves the detection reliability and the stability of the detection device through the resin sealant 4 filled in the detection hole and the detection through hole.
Preferably, an insulator 10 is further installed in the detection through hole, and the detection head structure penetrates through the insulator 10 to be in contact with the conductor.
Specifically, the end part of the cutter body 200, which is positioned at the end part of the first detection through hole, is sequentially provided with an insulator 10, a copper ring 9 and a carbon brush 6, and the collision bead 2 of the detection head structure penetrates through the insulator 10 to be in contact with the copper ring 9 and the carbon brush 6, so that the insulator 10 insulates the cutter body 200 from the copper ring 9;
see fig. 1;
preferably, the outer wall of the cutter body 200 is provided with a groove, the groove is fixedly connected with a connecting plate 3, and the return wire 1 penetrates through the connecting plate 3 to enter the detection through hole. Specifically, because the detection hole and the detection through hole are not concentric, the outer wall of the cutter body 200 is provided with a groove, the groove is fixedly connected with a connecting plate 3, the return wire 1 penetrates through the connecting plate 3 to enter the detection through hole, and the structure is used for guiding the routing direction of the return wire 1 through the connecting plate 3 in a directional manner.
Preferably, a temperature sensor is installed in the inner hole of the cutter shaft 300, the temperature sensor is in circuit connection with the binding post 5, the temperature inside the cutter is measured through the temperature sensor, and signals are transmitted to an external detection equipment host.
In the technical scheme, the TBM hob ring abrasion detection device provided by the utility model has the working principle that the TBM hob ring abrasion detection device is shown in figures 1 and 2;
when the cutter ring 100 is worn to 15mm, the return wire 1 in the second detection hole 12 is worn off, and a circuit signal is transmitted to external detection equipment through the data wire 8;
when the cutter ring 100 is worn to 30mm, the return wire 1 in the first detection hole 11 is worn out, thereby judging the amount of cutter ring wear.
The TBM hob ring abrasion detection device has the beneficial effects that:
1) The problems that the complicated geological environment is limited in the number of times of opening the bin and the abrasion condition of the cutter cannot be judged in time are avoided, the construction progress is effectively ensured, and manpower and material resources are saved;
2) The cutter ring is prevented from being worn and broken, and if the cutter cannot be stopped for replacing in the first time, the cutter ring can cause larger damage, the service lives of other parts of the cutter are effectively prolonged, and the maintenance cost is saved.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. A TBM hob ring wear detection device comprising:
the cutter comprises a cutter body (200) and a cutter ring (100) fixedly connected to the cutter body (200);
the cutter body (200) is connected with a cutter shaft (300) through a bearing, and the cutter shaft (300) is a hollow shaft with an inner hole, and is characterized in that;
the inner wall of the cutter ring (100) is provided with a detection hole extending towards the edge part of the cutter ring (100), and a return wire (1) is arranged in the detection hole; and
the detection through hole sequentially penetrates through the cutter body (200) and the cutter shaft (300) so as to enable the detection hole to be communicated with an inner hole of the cutter shaft (300);
the detection through hole is internally provided with a detection head structure and a conductor contacted with the detection head structure, and the return wire (1) is connected with the detection head structure; and also comprises
And the data line (8) is connected with the conductor, sequentially penetrates through the detection through hole and the inner hole of the cutter shaft (300) and is connected with a binding post (7) at the end part of the cutter shaft (300).
2. A TBM hob ring wear detection apparatus as defined in claim 1, characterized in that;
the detection holes comprise a first detection hole (11) and a second detection hole (12);
the second detection hole (12) is formed in the bottom wall of the first detection hole (11), and the first detection hole (11) and the second detection hole (12) are both provided with the return wire (1).
3. A TBM hob ring wear detection apparatus as claimed in claim 2, characterized in that;
the distance between the bottom wall of the second detection hole (12) and the tip of the blade part is 10-20 mm.
4. A TBM hob ring wear detection apparatus as claimed in claim 2, characterized in that;
the distance between the bottom wall of the first detection hole (11) and the tip of the blade part is 25-35 mm.
5. A TBM hob ring wear detection apparatus as defined in claim 1, characterized in that;
and resin sealant (4) is filled in the detection holes and the detection through holes and used for fixing the positions of the return-type electric wires (1).
6. A TBM hob ring wear detection apparatus according to any one of the claims 1 to 5, characterized in that;
the detection head structure comprises a collision bead (2) connected with the loop-shaped electric wire (1) and an elastic component for driving the collision bead (2) to contact against the conductor;
the conductor comprises a copper ring (9) and a carbon brush (6), and the carbon brush (6) is connected with the data line (8).
7. A TBM hob ring wear detection apparatus as defined in claim 6, characterized in that;
an insulator (10) is further arranged in the detection through hole, and the detection head structure penetrates through the insulator (10) to be in contact with the conductor.
8. A TBM hob ring wear detection apparatus as defined in claim 6, characterized in that;
the elastic component is compression spring (5), compression spring (5) one end with bump pearl (2) offset contact, the other end with detect the circular bead of through-hole offset contact, compression spring (5) extension drive bump pearl (2) with the conductor offset contact.
9. A TBM hob ring wear detection apparatus according to any one of the claims 1 to 5, characterized in that;
the outer wall of the cutter body (200) is provided with a groove, the groove is fixedly connected with a connecting plate (3), and the return wire (1) penetrates through the connecting plate (3) to enter the detection through hole.
10. A TBM hob ring wear detection apparatus according to any one of the claims 1 to 5, characterized in that;
and a temperature sensor is arranged in an inner hole of the cutter shaft (300), and the temperature sensor is in circuit connection with the binding post (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320812898.7U CN219589618U (en) | 2023-04-13 | 2023-04-13 | TBM hob ring abrasion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320812898.7U CN219589618U (en) | 2023-04-13 | 2023-04-13 | TBM hob ring abrasion detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219589618U true CN219589618U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320812898.7U Active CN219589618U (en) | 2023-04-13 | 2023-04-13 | TBM hob ring abrasion detection device |
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| Country | Link |
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| CN (1) | CN219589618U (en) |
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2023
- 2023-04-13 CN CN202320812898.7U patent/CN219589618U/en active Active
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