A wear detection device for a shield machine cutter

Abstract

The utility model discloses a kind of abrasion detection devices of shield machine cutter, the abrasion detection device of shield machine cutter includes detection platform, the abrasion detector rotating around detection platform center point, it is rotatably installed on detection platform and mutually symmetrical and is used to fix and arrange multiple clamping components of cutter;Abrasion detector is rotated around detection platform, and each clamping component is synchronously driven around its own rotation by linkage transmission component, so as to make abrasion detector realize the batch and all-around scanning coverage detection of multiple cutter.The utility model is driven motor rotation by linkage mechanism, such as driving gear-gear driven, can simultaneously drive abrasion detector revolution and multiple clamping components rotation, realize multiple cutter synchronous and all-around detection, batch operation efficiency is significantly improved compared with traditional single piece detection, and further can meet the construction project in large-scale tunnel.

Description

Technical Field

[0001] This utility model relates to the field of shield machine cutter wear detection technology, and in particular to a shield machine cutter wear detection device. Background Technology

[0002] In the field of tunnel construction, tunnel boring machines (TBMs), as key heavy engineering machinery, are widely used in the excavation of underground tunnels for subways, highways, railways, and water conservancy projects. They efficiently break up rock and soil through a rotating cutterhead at the front end and rely on hydraulic jacks for propulsion. Simultaneously, precast tunnel segments are installed to support the tunnel walls, ensuring both efficiency and safety during the excavation process. The cutterhead, as the core cutting component of the TBM, bears the heavy responsibility of breaking up rock and soil layers during excavation. However, prolonged continuous operation causes varying degrees of wear on the cutterhead surface due to intense friction with the rock and soil. This not only directly reduces construction efficiency but can also lead to serious consequences such as equipment damage or even work stoppages. Therefore, regular and precise wear inspection of the cutterhead is particularly urgent.

[0003] Existing technologies for inspecting cutting rollers offer some improvements in accuracy and ease of operation, but significant limitations remain. Specifically, existing solutions cannot perform batch inspections of cutting rollers. This leads to a significant reduction in inspection efficiency in large-scale tunnel construction when dealing with a massive number of cutting rollers requiring frequent inspection, making it difficult to meet practical engineering needs. Furthermore, these solutions are insufficient for comprehensive inspection of cutting roller wear, potentially overlooking potential damage in critical areas. This can affect the accurate assessment of the overall condition of the cutting rollers, posing potential risks to construction safety and efficiency. Utility Model Content

[0004] This utility model provides a wear detection device for tunnel boring machine cutterheads to solve the problems of low batch detection efficiency and insufficient comprehensive detection of tunnel boring machine cutterheads in the prior art.

[0005] In view of the above technical problems, this utility model provides a wear detection device for tunnel boring machine cutterheads, including a detection platform, a wear detector rotating around the center point of the detection platform, and multiple clamping components rotatably mounted on the detection platform and symmetrically arranged for fixing and placing the cutterheads; the multiple clamping components are evenly distributed around the circumference of the wear detector.

[0006] When the wear detector rotates around the detection platform, it synchronously drives each of the clamping components to rotate around itself through the linkage transmission component, thereby enabling the wear detector to perform batch and all-round scanning coverage detection on multiple hobs.

[0007] Optionally, the linkage transmission assembly includes an active shaft rotatably mounted at the center point of the detection platform, a drive motor connected to the end of the active shaft away from the wear detector, an active gear sleeved on the active shaft and located between the bottom surface of the detection platform and the drive motor, a driven gear meshing with the active gear, and a driven shaft rotatably connected to the driven gear.

[0008] The clamping assembly is fixedly installed at the end of the driven shaft away from the driven gear.

[0009] Optionally, the clamping assembly includes a support plate fixedly connected to the driven shaft, a clamping cover having a mounting hole, and a first spring connected between the support plate and the clamping cover.

[0010] Optionally, the wear detector is fixedly connected to the active rotating shaft via a connecting rod.

[0011] Optionally, the wear detection device for the tunnel boring machine cutterhead further includes a water tank, the water tank being fixedly connected to a first support column at the end face of the detection platform away from the wear detector, and a second support column being provided at the bottom of the water tank.

[0012] Optionally, the wear detection device for the tunnel boring machine cutterhead further includes a cleaning assembly for cleaning the cutterhead. The cleaning assembly includes a delivery box hinged to the top wall of the water tank, a connecting pipe fixedly installed on the side wall of the water tank and connected to the water tank, a water pump connected to the connecting pipe, and a guide pipe connected to the water pump.

[0013] Optionally, one end of the dispensing box extends into the water tank, and the other end extends outside the water tank.

[0014] Optionally, the dispensing box is provided with multiple water passage holes.

[0015] Optionally, the water tank includes a tank body, a discharge plate hinged to the tank body, and an elastic support member installed between the outer wall of the tank body and the outer wall of the discharge plate.

[0016] Optionally, the elastic support includes a first mounting plate fixedly connected to the outer wall of the unloading plate, a second mounting plate fixedly connected to the outer wall of the box, and a second spring connected between the first mounting plate and the second mounting plate.

[0017] In this invention, a linkage mechanism consisting of a drive gear and a driven gear drives the motor to rotate, simultaneously causing the wear detector to revolve and multiple clamping components to rotate. This enables simultaneous and omnidirectional testing of multiple roller cutters, significantly improving batch operation efficiency compared to traditional single-piece testing, and thus significantly reducing downtime during tunnel construction. Secondly, the clamping components employ an elastic quick-clamp structure composed of a support plate, clamping cover, and a first spring, compatible with different specifications of roller cutters and ensuring no loosening during rotation. Combined with the detector's 360° scanning without blind spots, the wear data is highly accurate. Furthermore, the water tank, loading box, water pump, and guide pipe form a closed-loop cleaning system. The loading box's bidirectional flipping allows for "lift-free" water intake and output of the roller cutters, the water passage immediately drains excess water, and the water pump continuously pumps out wastewater, instantly removing mud and sand, ensuring subsequent testing is not interfered with by impurities and keeping the site surface dry at all times. Finally, the unloading plate forms a normally closed hinge through a second spring and mounting plate elastic support, allowing for single-handed opening for slag discharge and automatic reset upon release, with a sealing layer preventing leakage. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the wear detection device for the cutter head of a tunnel boring machine in one embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the wear detection device for the cutter head of a tunnel boring machine in another embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the linkage transmission assembly of the wear detection device for the cutter head of a tunnel boring machine in one embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the water tank structure of the wear detection device for the cutter head of a tunnel boring machine in one embodiment of this utility model;

[0023] Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle.

[0024] The reference numerals in the accompanying drawings are as follows:

[0025] 1-Detection platform, 2-Wear detector, 3-Clamping assembly, 31-Support plate, 32-Clamping cover, 321-Mounting hole, 33-First spring, 4-Linkage transmission assembly, 41-Drive shaft, 42-Drive motor, 43-Drive gear, 44-Driven gear, 45-Driven shaft, 5-Connecting rod, 6-Water tank, 61-Box body, 62-Unloading plate, 7-First support column, 8-Second support column, 9-Dispensing box, 91-Water passage hole, 10-Connecting pipe, 11-Water pump, 12-Guide pipe, 13-Elastic support component, 1301-First mounting plate, 1302-Second mounting plate, 1303-Second spring. Detailed Implementation

[0026] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] like Figures 1 to 3As shown, one embodiment of this utility model provides a wear detection device for tunnel boring machine cutterheads, including a detection platform 1, a wear detector 2 rotating around the center point of the detection platform 1, and multiple clamping components 3 rotatably mounted on the detection platform 1 and symmetrically arranged for fixing and placing the cutterheads; the multiple clamping components 3 are evenly distributed around the circumference of the wear detector 2; when the wear detector 2 rotates around the detection platform 1, it synchronously drives each clamping component 3 to rotate around itself through a linkage transmission component 4, thereby enabling the wear detector 2 to perform batch and all-round scanning coverage detection of multiple cutterheads. Understandably, through the coordinated operation of the detection platform 1, wear detector 2, clamping assembly 3, and linkage transmission assembly 4, batch detection and omnidirectional scanning are integrated into the same detection device: the linkage transmission assembly 4 simultaneously drives the wear detector 2 to revolve and each clamping assembly 3 to rotate, so that all the cutters rotate synchronously around their own axis during the 360° circumferential scanning of the wear detector 2, achieving one clamping, simultaneous detection, and coverage without blind spots; thus, a large batch of cutter wear data can be accurately collected at once, significantly shortening the detection cycle, reducing manual intervention, and meeting the needs of large-scale tunnel construction for high-efficiency and high-reliability cutter condition assessment.

[0030] In one embodiment, such as Figures 1 to 2 As shown, the linkage transmission assembly 4 includes an active shaft 41 rotatably mounted at the center point of the detection platform 1, a drive motor 42 connected to the end of the active shaft 41 away from the wear detector 2, an active gear 43 sleeved on the active shaft 41 and located between the bottom surface of the detection platform 1 and the drive motor 42, a driven gear 44 meshing with the active gear 43, and a driven shaft 45 rotatably connected to the driven gear 44; the clamping assembly 3 is fixedly mounted on the end of the driven shaft 45 away from the driven gear 44. Understandably, this linkage transmission assembly 4, with the active shaft 41 as the center, synchronously distributes the single power source of the drive motor 42 to the wear detector 2 and all clamping assemblies 3: the drive motor 42 drives the active gear 43 to rotate, both driving the wear detector 2 to revolve around the platform via the connecting rod 5, and causing each driven shaft 45 to rotate via the driven gear 44 meshing with the active gear 43. In this way, while the wear detector 2 is scanning in the circumferential direction, each hob also rotates around its own axis, ensuring that wear data is collected 360° without omission.

[0031] In one embodiment, such as Figures 1 to 3As shown, the clamping assembly 3 includes a support plate 31 fixedly connected to the driven rotating shaft 45, a clamping cover 32 with mounting holes 321, and a first spring 33 connected between the support plate 31 and the clamping cover 32. Understandably, the support plate 31 is fixedly connected to the driven rotating shaft 45 to ensure that the hob rotates synchronously with the driven rotating shaft 45; the clamping cover 32 uses the mounting holes 321 to enclose the hob, and automatically presses the end face of the hob under the tension of the first spring 33, achieving quick clamping with a single-handed press; the flexible compensation of the first spring 33 can adapt to hobs of different specifications, ensuring no loosening during rotation, which improves batch loading efficiency and ensures the stability and repeatability of the inspection data.

[0032] In one embodiment, such as Figure 1 As shown, the wear detector 2 is fixedly connected to the active rotating shaft 41 via a connecting rod 5. Understandably, the wear detector 2 is directly fixed to the active rotating shaft 41 via the connecting rod 5 to achieve "zero-gap" rigid synchronization between the wear detector 2 and the active rotating shaft 41.

[0033] In one embodiment, such as Figures 1 to 2 As shown, the wear detection device for the tunnel boring machine cutter head also includes a water tank 6. The water tank 6 is fixedly connected to the end face of the detection platform 1 away from the wear detector 2 by a first support column 7, and a second support column 8 is provided at the bottom of the water tank 6.

[0034] In one embodiment, such as Figure 4 As shown, the wear detection device for the tunnel boring machine cutterhead also includes a cleaning assembly for cleaning the cutterhead. The cleaning assembly includes a loading box 9 hinged to the top wall of the water tank 6, a connecting pipe 10 fixedly installed on the side wall of the water tank 6 and connected to the water tank 6, a water pump 11 connected to the connecting pipe 10, and a guide pipe 12 connected to the water pump 11. Understandably, the loading box 9 is hinged to the top wall of the water tank 6 and can be flipped in both directions—when tilted downwards, the cutterhead can automatically slide into the water along the loading box 9, and the silt is quickly stripped away; after cleaning, the loading box 9 is flipped upwards, and the cutterhead can slide out smoothly, achieving single-person, no-handling operation. The water pump 11 continuously pumps sewage through the connecting pipe 10, and the guide pipe 12 directs the muddy water flow away to avoid secondary pollution and ensure the accuracy of subsequent detection. Furthermore, a filter screen (not shown) and a sealing layer (not shown) are installed at the inlet of the connecting pipe 10 and the water tank 6 to prevent sewage leakage.

[0035] In one embodiment, such as Figure 4 As shown, one end of the dispensing box 9 extends into the water tank 6, and the other end extends outside the water tank 6. Understandably, the outer end of the dispensing box 9 extends outside the water tank 6, forming a natural angle and a manual operating surface. This facilitates the smooth sliding of the roller blade into the water and allows it to be flipped over after cleaning, enabling the roller blade to slide unobstructed out to the external collection position.

[0036] In one embodiment, such as Figure 5 As shown, the loading box 9 is provided with multiple water holes 91. Understandably, the multiple water holes 91 on the loading box 9 allow water to flow freely in and out during rotary cutting, ensuring that mud and sand are quickly carried away; when the loading box 9 is tilted upwards to retrieve parts, these water holes immediately drain the remaining water from the loading box 9, preventing a large amount of water from leaking out as the loading box 9 tilts, thereby preventing the work area from becoming wet and slippery, maintaining a dry and safe site, and reducing water waste. In one embodiment, as... Figures 1 to 2 As shown, the water tank 6 includes a tank body 61, a discharge plate 62 hinged to the tank body 61, and an elastic support member 13 installed between the outer wall of the tank body 61 and the outer wall of the discharge plate 62. Understandably,

[0037] In one embodiment, such as Figures 1 to 2 As shown, the elastic support 13 includes a first mounting plate 1301 fixedly connected to the outer wall of the unloading plate 62, a second mounting plate 1302 fixedly connected to the outer wall of the box 61, and a second spring 1303 connected between the first mounting plate 1301 and the second mounting plate 1302. Understandably, the first mounting plate 1301, the second mounting plate 1302, and the second spring 1303 constitute a normally closed hinge: the tension of the second spring 1303 allows the unloading plate 62 to always fit against the bottom of the box 61, working in conjunction with the sealing layer to prevent leakage of cleaning water; when it is necessary to clean the deposited gravel, it can be manually pressed down to overcome the force of the second spring 1303 to open instantly, and after releasing, the second spring 1303 automatically springs back to its original position, achieving quick opening and closing with one hand, preventing accidental leakage and ensuring continuous operation; at the same time, the second support column raises the box 61, ensuring sufficient opening space below the unloading plate 62, avoiding interference with the ground, and balancing sealing, ease of operation, and site cleanliness.

[0038] The working process of the wear detection device for the tunnel boring machine cutter head is as follows:

[0039] Before testing, the roller can slide into the water tank 6 through the feeding box 9 with water passage holes 91 for cleaning. After cleaning, the water pump 11 discharges sewage through the connecting pipe 10 and the guide pipe 12. The unloading plate 62 opens under the elastic support of the second spring 1303, which facilitates the cleaning of residual hard debris and sediment in the water tank 6.

[0040] After the drive motor 42 starts, it drives the active shaft 41 to rotate, which in turn drives the active gear 43 sleeved on it to rotate. The active gear 43 meshes with the driven gear 44, driving the driven shaft 45 to rotate synchronously. The clamping assembly 3 fixed to the end of the driven shaft 45 rotates accordingly, causing the hob to rotate at multiple angles between the support plate 31 and the clamping cover 32 (fixed by the elastic clamping force of the first spring 33). At the same time, the wear detector 2 rotates with the active shaft 41 through the connecting rod 5, and performs a no-dead-angle scan on the surface of the rotating hob, realizing all-round and batch wear detection of batch hobs.

[0041] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A wear detection device for tunnel boring machine cutterheads, characterized in that, It includes a testing platform (1), a wear detector (2) that rotates around the center point of the testing platform (1), and multiple clamping components (3) that are rotatably mounted on the testing platform (1) and symmetrically arranged for fixing and placing the hobbing cutter; the multiple clamping components (3) are evenly distributed around the circumference of the wear detector (2); When the wear detector (2) rotates around the detection platform (1), it synchronously drives each of the clamping components (3) to rotate around itself through the linkage transmission component (4), thereby enabling the wear detector (2) to perform batch and all-round scanning coverage detection on multiple hobs.

2. The wear detection device for tunnel boring machine cutterheads according to claim 1, characterized in that, The linkage transmission assembly (4) includes an active shaft (41) rotatably mounted at the center point of the detection platform (1), a drive motor (42) connecting the end of the active shaft (41) away from the wear detector (2), an active gear (43) sleeved on the active shaft (41) and located between the bottom surface of the detection platform (1) and the drive motor (42), a driven gear (44) meshing with the active gear (43), and a driven shaft (45) rotatably connected to the driven gear (44). The clamping assembly (3) is fixedly installed at the end of the driven shaft (45) away from the driven gear (44).

3. The wear detection device for tunnel boring machine cutterheads according to claim 2, characterized in that, The clamping assembly (3) includes a support plate (31) fixedly connected to the driven rotating shaft (45), a clamping cover (32) having a mounting hole (321), and a first spring (33) connected between the support plate (31) and the clamping cover (32).

4. The wear detection device for tunnel boring machine cutterheads according to claim 2, characterized in that, The wear detector (2) is fixedly connected to the active rotating shaft (41) via a connecting rod (5).

5. The wear detection device for tunnel boring machine cutterheads according to claim 2, characterized in that, It also includes a water tank (6), the water tank (6) and the end face of the detection platform (1) away from the wear detector (2) are fixedly connected to a first support column (7), and a second support column (8) is provided at the bottom of the water tank (6).

6. The wear detection device for tunnel boring machine cutterheads according to claim 5, characterized in that, It also includes a cleaning assembly for cleaning the roller cutter, the cleaning assembly including a dispensing box (9) hinged to the top wall of the water tank (6), a connecting pipe (10) fixedly installed on the side wall of the water tank (6) and connected to the water tank (6), a water pump (11) connected to the connecting pipe (10), and a guide pipe (12) connected to the water pump (11).

7. The wear detection device for tunnel boring machine cutterheads according to claim 6, characterized in that, One end of the dispensing box (9) extends into the water tank (6), and the other end extends outside the water tank (6).

8. The wear detection device for tunnel boring machine cutterheads according to claim 6, characterized in that, The dispensing box (9) is provided with multiple water passage holes (91).

9. The wear detection device for tunnel boring machine cutterheads according to claim 5, characterized in that, The water tank (6) includes a tank body (61), a discharge plate (62) hinged to the tank body (61), and an elastic support member (13) installed between the outer wall of the tank body (61) and the outer wall of the discharge plate (62).

10. The wear detection device for tunnel boring machine cutterheads according to claim 9, characterized in that, The elastic support (13) includes a first mounting plate (1301) fixedly connected to the outer wall of the unloading plate (62), a second mounting plate (1302) fixedly connected to the outer wall of the box (61), and a second spring (1303) connected between the first mounting plate (1301) and the second mounting plate (1302).

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