A device for detecting wear of roller cutter of shield machine

Abstract

The present invention discloses a device for detecting wear of a shield cutter, which belongs to the technical field of shield cutter wear detection, and comprises a support, one side of the support is fixedly connected to a side plate, the side plate is rotatably connected to a circular ring, the circular ring is fixedly connected to a crossbeam, the crossbeam is slidably connected to a sliding sleeve, the bottom of the sliding sleeve is fixedly connected to a hanging box, the inside of the hanging box is fixedly connected to an annular guide rail, the sliding seat is slidably connected to the annular guide rail, one side of the sliding seat is rotatably connected to a push rod, a through groove is arranged on one side of the hanging box, a slide plate is slidably connected in the through groove, the push rod slides through the setting of the slide plate, the outer end of the push rod is fixedly connected to a push plate, a brush plate is arranged on the upper side of the push plate; a wear detection sensor is arranged on the side of the hanging box facing the push plate. The present invention drives the roller to rotate by the push plate, so that the wear detection sensor can illuminate the entire outer circle of the roller, and the brush plate sprays water to clean the attached mud and gravel, so that the detection is more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of shield cutter wear detection, and in particular to a shield machine cutter wear detection device. Background Art

[0002] Shield machines are becoming increasingly popular due to their safety and speed. As the "teeth" of shield machines, roller cutters are mainly used to dig hard rocks and composite formations. They use the rolling of the cutter blocks to dig trenches and crush rocks to achieve the effect of breaking rocks.

[0003] The life of the roller cutter is generally characterized by the wear of the roller cutter. In the prior art, the wear of the roller cutter is determined by measurement, but since the roller cutter is surrounded by mud or the teeth are covered by gravel, accurate information cannot be obtained by using sonic or infrared measurement. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device for detecting cutter wear of a shield machine, thereby solving the problem in the prior art that soil covering affects the cutter wear measurement.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for detecting wear of a roller cutter of a shield machine comprises a support, one side of the support is fixedly connected to a side plate, the side plate is rotatably connected to a circular ring, the circular ring is fixedly connected to a crossbeam, the crossbeam is slidably connected to a sliding sleeve, the bottom of the sliding sleeve is fixedly connected to a hanging box, the inside of the hanging box is fixedly connected to an annular guide rail, the annular guide rail is slidably connected to a sliding seat, one side of the sliding seat is rotatably connected to a push rod, one side of the hanging box is provided with a through groove, the through groove is slidably connected to a slide plate, the push rod slides through the slide plate, the outer end of the push rod is fixedly connected to a push plate, and a brush plate is provided on the upper side of the push plate;

[0007] A wear detection sensor is arranged on the side of the hanging box facing the push plate.

[0008] Preferably, the wear detection sensor is an infrared sensor or an acoustic wave sensor.

[0009] Preferably, a groove is provided at the outer end of the push plate.

[0010] Preferably, the push plate is provided with a plurality of through holes, and a water supply pipe is provided at the bottom of the brush plate.

[0011] Preferably, a cavity is provided inside the brush plate, water outlet holes are evenly provided on the upper surface of the brush plate, the water supply pipe includes a joint pipe, the joint pipe is connected to the cavity of the brush plate, a hose is provided at the bottom of the joint pipe, an avoidance hole is provided at the bottom of the push plate, and the hose is connected to the water tank.

[0012] Preferably, two brush plates are symmetrically arranged, two inclined grooves are symmetrically arranged inside the push plate, the inclined grooves are inclined upward from the middle of the push plate to the outer end, a slider is slidably connected in the inclined groove, a support spring is fixedly connected between the slider and the inner wall of one end of the inclined groove, the bottom of the push plate is slidably connected to the push rod, the top of the push rod is fixedly connected to the inclined block, and the inclined block is in sliding contact with the inclined surface of the slider;

[0013] The upper side of the sliding block is fixedly connected with a vertical rod, and the brush plate is rotatably connected with the vertical rod and a torsion spring is arranged.

[0014] Preferably, a protruding block is provided at the bottom of the brush plate, and the bottom of the protruding block is in an arc structure. A deep arc groove and a shallow arc groove are provided on the upper side of the push plate, and the deep arc groove is located on the inner side of the push plate.

[0015] The advantages of the present invention are: a device for detecting the wear of the roller cutter of a shield machine provided by the present invention rotates in a circular ring so that a push plate moves to a roller cutter position that needs to be cleaned and detected, and is in the direction of an circumscribed circle, the push plate pushes toward the roller cutter, the groove abuts against the teeth of the roller cutter and pushes the roller cutter to rotate, and since the slide seat continuously rotates on the annular guide rail, the slide seat pushes the roller cutter when the guide rail on the annular guide rail moves toward the roller cutter, and after the slide seat enters the left end guide rail of the annular guide rail, the push plate descends relative to the roller cutter, and after descending, it disengages from the teeth of the roller cutter and retreats through the lower guide rail of the annular guide rail, and does not touch the roller cutter when retreating, so the roller cutter is pushed to rotate by this mechanism, so that the wear detection sensor can illuminate the entire outer circle of the roller cutter; in the process of the push plate pushing the roller cutter, the brush plate sprays water to clean the attached mud and gravel, so that the detection is more accurate.

[0016] The push plate of the present invention moves downward, and the push rod pushes the inner wall of the installation frame of the roller cutter, so that the inclined block pushes the sliding block to slide along the inclined groove, and drives the brush plate to brush. On the one hand, it brushes to both sides between the teeth of the roller cutter to brush away the inserted mud and gravel. On the other hand, it adapts to the side slope of the roller cutter and cooperates with water flushing to make the roller cutter cleaned more thoroughly. The two brush plates are separated and avoid the teeth of the roller cutter during the retreat of the push plate, so that the roller cutter will not rotate, reducing the impact on the teeth of the roller cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a basic structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the push plate relative to the hob;

[0019] Figure 3 It is a schematic diagram of the structure of the push plate;

[0020] Figure 4 It is a schematic diagram of the internal structure of the push plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] like Figures 1 to 4 As shown, the present invention provides a device for detecting wear of a shield machine cutter, comprising a support 1, one side of the support 1 is fixedly connected to a side plate 11, the side plate 11 is rotatably connected to a ring 12, the ring 12 is fixedly connected to a crossbeam 13, the crossbeam 13 is slidably connected to a sleeve 14, the bottom of the sleeve 14 is fixedly connected to a hanging box 2, the inside of the hanging box 2 is fixedly connected to an annular guide rail 21, the annular guide rail 21 is slidably connected to a slide seat 22, the slide seat 22 changes position through a hydraulic cylinder, the use of the annular guide rail 21 and the slide seat 22 belongs to a conventional power mechanism in the prior art, one side of the slide seat 22 is rotatably connected to a push rod 23, one side of the hanging box 2 is provided with a through groove 24, a slide plate 25 is slidably connected in the through groove 24, the push rod 23 slides through the slide plate 25, the slide plate 25 slides vertically in the through groove 24 to adapt to the vertical movement of the push rod 23, the outer end of the push rod 23 is fixedly connected to a push plate 3, a brush plate 4 is provided on the upper side of the push plate 3, and a groove 31 is provided at the outer end of the push plate 3.

[0023] A wear detection sensor 5 is arranged on the side of the hanging box 2 facing the push plate 3. The wear detection sensor 5 is an infrared sensor or an acoustic wave sensor. The infrared sensor irradiates the cutter teeth to detect whether there is tooth breakage through a distance, and the acoustic wave sensor detects whether there is tooth breakage through the acoustic wave emission distance. The measurement technology belongs to the existing technology and will not be further explained here.

[0024] The ring 12 of the present invention is driven by a motor provided on one side of the side plate 11 to rotate and cooperate with the positioner, so that the push plate 3 moves to the position of the hob 10 that needs to be cleaned and inspected, and is in the direction of the circumscribed circle. The push plate 3 pushes toward the hob 10, and the groove 31 abuts against the teeth of the hob 10 and pushes the hob 10 to rotate. Since the slide seat 22 continues to rotate on the annular guide rail 21, when the slide seat 22 moves toward the hob 10 on the annular guide rail 21, the hob 10 is pushed. Figure 2 After the slide 22 enters the left end rail of the annular guide rail 21, the push plate 3 descends relative to the hob 10, disengages from the teeth of the hob 10 after descending, and retreats through the lower rail of the annular guide rail 21 without hitting the hob 10 during retreat. Therefore, the hob 10 is pushed to rotate by this mechanism, so that the wear detection sensor 5 can illuminate the entire outer circle of the hob 10;

[0025] When the push plate 3 pushes the roller cutter 10, the brush plate 4 sprays water to clean the attached dirt and gravel, making the detection more accurate.

[0026] As an embodiment of the present invention, a plurality of through holes 32 are provided on the push plate 3, a water supply pipe is provided at the bottom of the brush plate 4, a cavity is provided inside the brush plate 4, water outlet holes 411 are evenly provided on the upper surface of the brush plate 4, the water supply pipe includes a joint pipe 6, the joint pipe 6 is connected to the cavity of the brush plate 4, a hose is provided at the bottom of the joint pipe 6, an avoidance hole 61 is provided at the bottom of the push plate 3, and the hose extends from the avoidance hole 61 to be connected to the water tank.

[0027] In this embodiment, the brush plate 4 sprays water to clean the attached mud and gravel, cooperates with the squeezing effect of the push plate 3, and the brush plate 4 is close to the teeth of the roller 10, so as to facilitate cleaning of the mud in the gaps between the teeth of the roller 10.

[0028] As an embodiment of the present invention, two brush plates 4 are symmetrically arranged, two inclined grooves 41 are symmetrically arranged inside the push plate 3, the inclined groove 41 is inclined upward from the middle of the push plate 3 to the outer end, a slider 42 is slidably connected in the inclined groove 41, a support spring 43 is fixedly connected between the slider 42 and the inner wall of one end of the inclined groove 41, a push plate 3 bottom is slidably connected to a push rod 44, the push rod 44 is fixedly connected to an inclined block 45, and the inclined block 45 is in sliding contact with the inclined surface of the slider 42;

[0029] The upper side of the sliding block 42 is fixedly connected to a vertical rod 46 , and the brush plate 4 is rotatably connected to the vertical rod 46 and is provided with a torsion spring.

[0030] In this embodiment, after the push plate 3 pushes the cutter wheel 10 to rotate, the push plate 3 moves downward, and the push rod 44 pushes the inner wall of the mounting frame 20 of the cutter wheel 10, so that the inclined block 45 pushes the slider 42 to slide along the inclined groove 41, and moves with the brush plate 4. On the one hand, it brushes to both sides between the teeth of the cutter wheel 10 to brush away the stuck soil and gravel. On the other hand, it adapts to the side slope of the cutter wheel 10 and cooperates with the water flushing to make the cutter wheel 10 cleaned more thoroughly. The two brush plates 4 are separated to avoid the teeth of the cutter wheel 10 during the retreat of the push plate 3, so that the cutter wheel 10 will not rotate and the impact on the teeth of the cutter wheel 10 is reduced.

[0031] Furthermore, a protruding block 47 is provided at the bottom of the brush plate 4, and the bottom of the protruding block 47 is in an arc structure. A deep arc groove 48 and a shallow arc groove 49 are provided on the upper side of the push plate 3, and the deep arc groove 48 is located on the inner side of the push plate 3; the brush plate 4 moves sideways under the movement of the slider 42. During the sideways movement of the brush plate 4, the protruding block 47 reaches the surface of the push plate 3 from the deep arc groove 48, and the torsion spring on the rotating shaft of the brush plate 4 will generate torque. At this time, the brush plate 4 also further squeezes and crushes the mud blocks, and then the protruding block 47 falls into the shallow arc groove 49, and a gap appears between the brush plate 4 and the squeezed and crushed mud blocks, which makes it convenient for the sprayed water to carry the crushed mud blocks away from between the teeth of the roller. Compared with flushing with water alone, the cleaning is more sufficient, so that there is no obstruction in subsequent detection.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting wear of a roller cutter of a shield machine, comprising a support (1), one side of the support (1) being fixedly connected to a side plate (11), the side plate (11) being rotatably connected to a circular ring (12), the circular ring (12) being fixedly connected to a crossbeam (13), and the crossbeam (13) being slidably connected to a sliding sleeve (14), characterized in that: The bottom of the sliding sleeve (14) is fixedly connected to the hanging box (2), the inside of the hanging box (2) is fixedly connected to the annular guide rail (21), the annular guide rail (21) is slidably connected to the sliding seat (22), one side of the sliding seat (22) is rotatably connected to the push rod (23), a through groove (24) is provided on one side of the hanging box (2), a slide plate (25) is slidably connected in the through groove (24), the push rod (23) slides through the slide plate (25), the outer end of the push rod (23) is fixedly connected to the push plate (3), and a brush plate (4) is provided on the upper side of the push plate (3); A wear detection sensor (5) is provided on the side of the hanging box (2) facing the push plate (3).

2. A shield machine cutter wear detection device according to claim 1, characterized in that: The wear detection sensor (5) is an infrared sensor or an acoustic wave sensor.

3. A shield machine cutter wear detection device according to claim 1, characterized in that: A groove (31) is provided at the outer end of the push plate (3).

4. A shield machine cutter wear detection device according to claim 3, characterized in that: The push plate (3) is provided with a plurality of through holes (32), and a water supply pipe is provided at the bottom of the brush plate (4).

5. A shield machine cutter wear detection device according to claim 4, characterized in that: A cavity is arranged inside the brush plate (4), water outlet holes (411) are evenly arranged on the upper surface of the brush plate (4), the water supply pipe comprises a joint pipe (6), the joint pipe (6) is connected to the cavity of the brush plate (4), a hose is arranged at the bottom of the joint pipe (6), an avoidance hole (61) is arranged at the bottom of the push plate (3), and the hose is connected to the water tank.

6. The device for detecting wear of a shield machine cutter according to claim 1, characterized in that: Two brush plates (4) are symmetrically arranged, and two inclined grooves (41) are symmetrically arranged inside the push plate (3), the inclined groove (41) is inclined upward from the middle of the push plate (3) to the outer end, a slider (42) is slidably connected inside the inclined groove (41), a support spring (43) is fixedly connected between the slider (42) and the inner wall of one end of the inclined groove (41), the bottom of the push plate (3) is slidably connected to a push rod (44), the top of the push rod (44) is fixedly connected to an inclined block (45), and the inclined block (45) is in sliding contact with the inclined surface of the slider (42); The upper side of the slider (42) is fixedly connected to the vertical rod (46), and the brush plate (4) is rotatably connected to the vertical rod (46) and is provided with a torsion spring.

7. A shield machine cutter wear detection device according to claim 6, characterized in that: A protruding block (47) is provided at the bottom of the brush plate (4), and the bottom of the protruding block (47) is in an arc structure. A deep arc groove (48) and a shallow arc groove (49) are provided on the upper side of the push plate (3), and the deep arc groove (48) is located on the inner side of the push plate (3).

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