Shield tail brush performance testing device and testing method thereof

Abstract

The invention relates to the technical field of shield tail brush testing, and discloses a shield tail brush performance testing device and a testing method thereof.The shield tail brush performance testing device comprises a working shell, a supporting frame is fixedly connected to the top of the working shell, a square hole is formed in the top of the working shell, a shield tail brush is arranged on the top, close to the supporting frame, of the working shell in a contact mode, and the shield tail brush is placed on the top of the working shell; a positive and negative motor is started, the positive and negative motor drives a rotating shaft to rotate, the rotating shaft drives a lead screw to rotate, and under the limitation of a limiting rod, the lead screw drives a threaded plate to move downwards along the outer wall of the limiting rod, the threaded plate drives a square rod to descend, the square rod drives a concave plate to descend, and the concave plate drives the square plate to descend; the square plate drives the lifting frame rod to descend, the lifting frame rod drives the extrusion plate to descend, and the extrusion plate can make contact with the top of the shield tail brush when descending, so that the shield tail brush is pressed, and the angle change of the shield tail brush is detected.

Description

Technical Field

[0001] The present invention relates to the technical field of shield tail brush testing, specifically to a shield tail brush performance testing device and its testing method. Background Art

[0002] A shield tail brush performance testing device is a special equipment used to test and evaluate the performance of the brush head at the tail of a shield machine. The shield tail brush head is usually used to clean substances such as soil and muck generated during the advancement of the shield machine, ensuring the cleanliness of the tunnel excavation path and guaranteeing the smooth progress of subsequent construction work. In order to ensure that the shield tail brush head can operate efficiently in different working environments, it is necessary to conduct performance tests on it to ensure that it can effectively clean, adjust the angle, and adapt to the tunnel environment during operation.

[0003] In the prior art, when detecting the performance of the shield tail brush, a hydraulic device is usually used to simulate the angle adjustment that the brush head can perform under different pressures. However, usually this working process can only monotonously test in one direction and cannot perform multiple tests on the brush head, affecting the detection efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a shield tail brush performance testing device and its testing method to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention is a shield tail brush performance testing device and its testing method, including a working shell. A support frame is fixedly connected to the top of the working shell. A square hole is opened at the top of the working shell. A shield tail brush is in contact with the top of the working shell near the support frame. It also includes a performance detection mechanism. The performance detection mechanism includes a forward and reverse motor, a rotating shaft, a lead screw, a threaded plate, and a detection component for detecting the shield tail brush. The bottom of the forward and reverse motor is fixedly connected to the top of the support frame. The top of the rotating shaft is fixedly connected to the output end of the forward and reverse motor. The inner wall of the lead screw is fixedly connected to the outer wall of the rotating shaft. The inner wall of the threaded plate is threadedly connected to the outer wall of the lead screw.

[0007] Further, the detection component includes a limiting rod fixedly connected to the top of the inner wall of the support frame. One end of the limiting rod penetrates through the threaded plate and extends to the outside of the threaded plate. A reset spring is fixedly connected to the top of the threaded plate. The top of the reset spring is fixedly connected to the top of the inner wall of the support frame. Square rods are respectively fixedly connected to both sides of the bottom of the threaded plate.

[0008] Furthermore, the bottom of the square rod is fixedly connected with a concave plate. One side of the concave plate is fixedly connected with a square plate. The two sides of the top of the square plate respectively penetrate and are slidably connected with lifting frame rods. The bottom of the lifting frame rods is fixedly connected with a pressing plate. On both sides near the top of the lifting frame rods, the pressing plate is respectively fixedly connected with a first spring, and the top of the first spring is fixedly connected to the bottom of the square plate.

[0009] Furthermore, a stabilizing assembly is arranged on the side wall of the threaded plate. The stabilizing assembly includes cross bars fixedly connected to both sides of the threaded plate. Vertical grooves are respectively opened on both sides of the inner wall of the support frame. One end of the outer wall of the cross bar is slidably connected to the inner wall of the vertical groove. The bottom of the cross bar is rotatably connected with a rotating rod. One end of the rotating rod far from the cross bar is rotatably connected with a square shell. The bottom of the square shell is slidably connected to the top of the working shell.

[0010] Furthermore, on one side of the inner wall of the square shell, a second spring is fixedly connected. One end of the second spring is fixedly connected with a sliding plate. The outer wall of the sliding plate is slidably connected to the inner wall of the square shell. On the side of the sliding plate far from the second spring, a clamping piece is fixedly connected. A sliding hole is opened on one side of the clamping piece. The top end of the inner wall of the sliding hole is slidably connected with a spring frame. One end of the spring frame is rotatably connected with a first rotating plate. One end of the first rotating plate is rotatably connected to one side of the outer wall of the square shell.

[0011] Furthermore, an auxiliary assembly is arranged at the top end of the lifting frame rod. The auxiliary assembly includes a second rotating plate rotatably connected to one side of the top end of the lifting frame rod. One end of the second rotating plate far from the lifting frame rod is rotatably connected with a slider. The outer wall of the bottom end of the slider is slidably connected to the inner wall of the square plate. One side of the slider is fixedly connected with a connecting rod.

[0012] Furthermore, one end of the connecting rod is fixedly connected with a toothed plate. One end of the bottom of the toothed plate is meshed and connected with a gear. The inner wall of the gear is fixedly connected with a round rod. One end of the round rod is rotatably connected to the side wall of the square plate. On the outer wall of the round rod near the gear, a special-shaped tunnel block is fixedly connected.

[0013] Furthermore, a support assembly is arranged at the end of the threaded plate. The support assembly includes a bent rod fixedly connected to one end of the threaded plate. The bottom end of the bent rod penetrates the working shell and extends to the inside of the working shell. The bottom end of the bent rod is rotatably connected with a first rotating bar. The bottom end of the first rotating bar is rotatably connected with a moving part. The bottom of the moving part is slidably connected to the bottom of the inner wall of the working shell. One end of the moving part far from the first rotating bar is rotatably connected with a second rotating bar. One end of the second rotating bar far from the moving part is rotatably connected with a lifting plate.

[0014] Furthermore, limiting grooves are respectively formed on both sides of the inner wall of the working shell. The outer walls of both ends of the lifting plate are respectively slidably connected to the inner walls of the limiting grooves. A fixing rod is fixedly connected to the top of the lifting plate. The top end of the fixing rod is rotatably connected to a rotating member. A supporting plate is fixedly connected to the top of the rotating member. Arc-shaped springs are respectively fixedly connected to both sides of the bottom of the supporting plate. One end of each arc-shaped spring is fixedly connected to the side wall of the fixing rod.

[0015] The test method of the shield tail brush performance test device includes the following steps:

[0016] Step 1: Conduct an angle detection on the shield tail brush. Place the shield tail brush on the top of the working shell, start the forward and reverse motor. The forward and reverse motor drives the rotating shaft to rotate. The rotating shaft drives the lead screw to rotate. Restricted by the limiting rod, the lead screw drives the threaded plate to move downward along the outer wall of the limiting rod. The threaded plate drives the square rod to descend. The square rod drives the concave plate to descend. The concave plate drives the square plate to descend. The square plate drives the lifting frame rod to descend. The lifting frame rod drives the pressing plate to descend. When the pressing plate descends, it will contact the top of the shield tail brush, thereby pressing the shield tail brush.

[0017] Step 2: Improve the stability of the shield tail brush detection. When the clamping member clamps the shield tail brush, due to the reaction force of the shield tail brush, the clamping member drives the sliding plate to move into the interior of the square shell. The clamping member and the square shell gradually approach. And due to the arrangement of the sliding holes, the first rotating plate drives the spring frame to descend along the inner wall of the sliding hole. During the descent of the spring frame, it will contact the top of the shield tail brush and press the tail of the shield tail brush.

[0018] Step 3: Simulate the detection of the shield tail brush cleaning the tunnel. When the concave plate descends, the bottom of the concave plate will contact the top of the spring frame and press down on the spring frame, improving the pressing effect of the spring frame on the shield tail brush. When the pressing plate presses the shield tail brush, due to the reaction force of the shield tail brush, the pressing plate drives the lifting frame rod to move upward along the inner wall of the square plate. The lifting frame rod drives the second rotating plate to move upward. Restricted by the square plate, the second rotating plate drives the slider to move along the inner wall of the square plate. The slider drives the connecting rod to move. The connecting rod drives the toothed plate to move. The two toothed plates move away from each other. During the movement of the toothed plate, it will contact the outer wall of the gear, causing the gear to rotate. The gear drives the round rod to rotate. The round rod drives the special-shaped tunnel block to rotate. During the rotation of the special-shaped tunnel block, it will contact the end of the shield tail brush.

[0019] Step 4: Detect the ultimate state of the tail seal brush. When the threaded plate descends, the threaded plate drives the bent rod to descend, the bent rod drives the first rotating bar to descend. Limited by the working shell, the first rotating bar drives the moving part to move along the bottom inner wall of the working shell. The moving part drives the second rotating bar to move. Limited by the limiting groove, the second rotating bar drives the lifting plate to move upward along the inner wall of the limiting groove. The lifting plate drives the fixed rod to move upward, the fixed rod drives the rotating part to move upward, the rotating part drives the support plate to move upward. During the upward movement of the support plate, it will contact the bottom of the tail seal brush. At the same time, under the downward pressure of the rotating part, the tail seal brush is simulated to have zero clearance between the segments.

[0020] The present invention has the following beneficial effects:

[0021] (1). In the present invention, the tail seal brush is placed on the top of the working shell. The forward and reverse motor is started. The forward and reverse motor drives the rotating shaft to rotate, the rotating shaft drives the lead screw to rotate. Limited by the limiting rod, the lead screw drives the threaded plate to move downward along the outer wall of the limiting rod. The threaded plate drives the square rod to descend, the square rod drives the concave plate to descend, the concave plate drives the square plate to descend, the square plate drives the lifting frame rod to descend, the lifting frame rod drives the pressing plate to descend. When the pressing plate descends, it will contact the top of the tail seal brush, thereby pressing the tail seal brush and detecting the angle change of the tail seal brush. At the same time, when the threaded plate descends, the threaded plate drives the cross bar to descend, the cross bar drives the rotating rod to descend. Limited by the working shell, the rotating rod drives the square shell to slide along the top of the working shell. The square shell drives the sliding plate to move, the sliding plate drives the clamping parts to move, and the two clamping parts move closer to each other, thereby clamping the tail seal brush and preventing the tail seal brush from moving when being pressed, which improves the accuracy of the angle detection of the tail seal brush.

[0022] (2). In the present invention, when the clamping parts clamp the tail seal brush, under the reaction force of the tail seal brush, the clamping parts drive the sliding plate to move into the interior of the square shell. The clamping parts and the square shell gradually approach. And due to the arrangement of the sliding holes, the first rotating plate drives the spring frame to descend along the inner wall of the sliding hole. During the descending process of the spring frame, it will contact the top of the tail seal brush and press the tail of the tail seal brush, further preventing the tail seal brush from warping when the angle of the tail seal brush is detected, and improving the stability of the detection of the tail seal brush.

[0023] (3) In the present invention, when the concave plate descends, the bottom of the concave plate will come into contact with the top of the spring frame, pressing down on the spring frame, improving the pressing effect of the spring frame on the tail seal brush. When the pressing plate presses the tail seal brush, it receives the reaction force from the tail seal brush, causing the pressing plate to drive the lifting frame rod to move upward along the inner wall of the square plate. The lifting frame rod drives the second rotating plate to move upward. Restricted by the square plate, the second rotating plate drives the slider to move along the inner wall of the square plate. The slider drives the connecting rod to move, and the connecting rod drives the toothed plate to move. The two toothed plates move away from each other. During the movement of the toothed plate, it will come into contact with the outer wall of the gear, causing the gear to rotate. The gear drives the round rod to rotate, and the round rod drives the special-shaped tunnel block to rotate. During the rotation of the special-shaped tunnel block, it will come into contact with the end of the tail seal brush, causing the tail seal brush to simulate the cleaning motion state in the tunnel, improving the diversity of the device for detecting the tail seal brush.

[0024] (4) In the present invention, when the threaded plate descends, the threaded plate drives the bent rod to descend, and the bent rod drives the first rotating bar to descend. Restricted by the working shell, the first rotating bar drives the moving part to move along the bottom inner wall of the working shell. The moving part drives the second rotating bar to move. Restricted by the limiting groove, the second rotating bar drives the lifting plate to move upward along the inner wall of the limiting groove. The lifting plate drives the fixed rod to move upward, and the fixed rod drives the rotating part to move upward. The rotating part drives the support plate to move upward. During the upward movement of the support plate, it will come into contact with the bottom of the tail seal brush. At the same time, under the downward pressure of the rotating part, the tail seal brush is simulated to have zero clearance between the segments, and the limit state of the tail seal brush is simulated and detected, further improving the diversity of the device for detecting the tail seal brush. Due to the elastic deformation of the arc-shaped spring, when the support plate comes into contact with the curved tail seal brush, it can perform a perfect fitting operation, preventing the support plate from getting stuck when contacting the tail seal brush, and improving the stability of the device operation.

[0025] Of course, when implementing any product of the present invention, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic top view structure diagram of the whole of the present invention;

[0028] Figure 2 It is a schematic cross-sectional structure diagram of the whole of the present invention;

[0029] Figure 3 Schematic cross-sectional structure diagram of the working shell of the present invention;

[0030] Figure 4 Schematic bottom view structure diagram of the threaded plate of the present invention;

[0031] Figure 5 Schematic top view structure diagram of the square plate of the present invention;

[0032] Figure 6 Schematic cross-sectional structure diagram of the gear of the present invention;

[0033] Figure 7 For the present invention Figure 2 Enlarged view of A in;

[0034] Figure 8 For the present invention Figure 3 Enlarged view of B in;

[0035] Figure 9 Schematic flow chart of the test method of the present invention.

[0036] In the drawings, the list of components represented by each label is as follows:

[0037] In the figure: 1, working shell; 2, support frame; 3, square hole; 4, shield tail brush; 5, performance detection mechanism; 51, forward and reverse motor; 52, rotating shaft; 53, lead screw; 54, threaded plate; 55, detection component; 56, stable component; 57, auxiliary component; 58, support component; 551, limiting rod; 552, reset spring; 553, square rod; 554, concave plate; 555, square plate; 556, lifting frame rod; 557, first spring; 558, extrusion plate; 561, cross bar; 562, vertical groove; 563, rotating rod; 564, square shell; 565, second spring; 566, sliding plate; 567, clamping piece; 568, sliding hole; 569, first rotating plate; 5610, spring frame; 571, second rotating plate; 572, slider; 573, connecting rod; 574, toothed plate; 575, round rod; 576, gear; 577, special-shaped tunnel block; 581, bent rod; 582, first rotating bar; 583, moving piece; 584, second rotating bar; 585, lifting plate; 586, limiting groove; 587, fixed rod; 588, rotating piece; 589, support plate; 5810, arc spring. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Example 1, please refer to Figure 1 - Figure 9 As shown in the figure, the present invention is a shield tail brush performance testing device and its testing method, including a working shell 1. A support frame 2 is fixedly connected to the top of the working shell 1. A square hole 3 is opened at the top of the working shell 1. A shield tail brush 4 is in contact with the top of the working shell 1 near the support frame 2. It also includes;

[0040] A performance detection mechanism 5, which includes a forward and reverse motor 51, a rotating shaft 52, a lead screw 53, a threaded plate 54, and a detection component 55 for detecting the shield tail brush 4. Place the shield tail brush 4 on the top of the working shell 1. Start the forward and reverse motor 51. The forward and reverse motor 51 drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the lead screw 53 to rotate. Limited by the limiting rod 551, the lead screw 53 drives the threaded plate 54 to move downward along the outer wall of the limiting rod 551. The threaded plate 54 drives the square rod 553 to descend. The square rod 553 drives the concave plate 554 to descend. The concave plate 554 drives the square plate 555 to descend. The square plate 555 drives the lifting frame rod 556 to descend. The lifting frame rod 556 drives the pressing plate 558 to descend. When the pressing plate 558 descends, it will contact the top of the shield tail brush 4, thereby pressing the shield tail brush 4 and detecting the angle change of the shield tail brush 4;

[0041] The bottom of the forward and reverse motor 51 is fixedly connected to the top of the support frame 2. The top of the rotating shaft 52 is fixedly connected to the output end of the forward and reverse motor 51. The inner wall of the lead screw 53 is fixedly connected to the outer wall of the rotating shaft 52. The inner wall of the threaded plate 54 is threadedly connected to the outer wall of the lead screw 53.

[0042] The detection component 55 includes a limiting rod 551 fixedly connected to the top of the inner wall of the support frame 2. One end of the limiting rod 551 penetrates through the threaded plate 54 and extends to the outside of the threaded plate 54. A return spring 552 is fixedly connected to the top of the threaded plate 54. The top of the return spring 552 is fixedly connected to the top of the inner wall of the support frame 2. Square rods 553 are respectively fixedly connected to both sides of the bottom of the threaded plate 54.

[0043] The bottom of the square rod 553 is fixedly connected to a concave plate 554. One side of the concave plate 554 is fixedly connected to a square plate 555. Lifting frame rods 556 penetrate through and are slidably connected to both sides of the top of the square plate 555. The bottom of the lifting frame rod 556 is fixedly connected to a pressing plate 558. First springs 557 are respectively fixedly connected to both sides of the pressing plate 558 near the top of the lifting frame rod 556. The top of the first spring 557 is fixedly connected to the bottom of the square plate 555.

[0044] The side wall of the threaded plate 54 is provided with a stabilizing component 56. When the threaded plate 54 descends, the threaded plate 54 drives the cross bar 561 to descend. The cross bar 561 drives the rotating rod 563 to descend. Limited by the working shell 1, the rotating rod 563 drives the square shell 564 to slide along the top of the working shell 1. The square shell 564 drives the sliding plate 566 to move. The sliding plate 566 drives the clamping member 567 to move. The two clamping members 567 move closer to each other, so as to clamp the tail brush 4, preventing the tail brush 4 from moving when being pressed, and improving the accuracy of the angle detection of the tail brush 4. The stabilizing component 56 includes cross bars 561 fixedly connected to both sides of the threaded plate 54. Vertical grooves 562 are respectively formed on both sides of the inner wall of the support frame 2. One end outer wall of the cross bar 561 is slidably connected to the inner wall of the vertical groove 562. The bottom of the cross bar 561 is rotatably connected to a rotating rod 563. One end of the rotating rod 563 away from the cross bar 561 is rotatably connected to a square shell 564. The bottom of the square shell 564 is slidably connected to the top of the working shell 1.

[0045] On one side of the inner wall of the square shell 564, a second spring 565 is fixedly connected. One end of the second spring 565 is fixedly connected to a sliding plate 566. The outer wall of the sliding plate 566 is slidably connected to the inner wall of the square shell 564. On the side of the sliding plate 566 away from the second spring 565, a clamping member 567 is fixedly connected. A sliding hole 568 is formed on one side of the clamping member 567. The top end inner wall of the sliding hole 568 is slidably connected to a spring holder 5610. One end of the spring holder 5610 is rotatably connected to a first rotating plate 569. One end of the first rotating plate 569 is rotatably connected to one side of the outer wall of the square shell 564. When the clamping member 567 clamps the tail brush 4, due to the reaction force of the tail brush 4, the clamping member 567 drives the sliding plate 566 to move into the interior of the square shell 564. The clamping member 567 and the square shell 564 gradually approach. And due to the setting of the sliding hole 568, the first rotating plate 569 drives the spring holder 5610 to descend along the inner wall of the sliding hole 568. During the descending process of the spring holder 5610, it will contact the top of the tail brush 4 and press the tail of the tail brush 4, further preventing the tail brush 4 from warping when the angle of the tail brush 4 is detected and improving the stability of the detection of the tail brush 4.

[0046] Embodiment 2, an auxiliary component 57 is provided at the top of the lifting rod 556. When the concave plate 554 descends, the bottom of the concave plate 554 will come into contact with the top of the spring frame 5610, pressing down on the spring frame 5610, improving the pressing effect of the spring frame 5610 on the tail seal brush 4. When the pressing plate 558 presses the tail seal brush 4, due to the reaction force of the tail seal brush 4, the pressing plate 558 drives the lifting rod 556 to move upward along the inner wall of the square plate 555. The lifting rod 556 drives the second rotating plate 571 to move upward. Limited by the square plate 555, the second rotating plate 571 drives the slider 572 to move along the inner wall of the square plate 555. The slider 572 drives the connecting rod 573 to move. The connecting rod 573 drives the toothed plate 574 to move. The two toothed plates 574 move away from each other. During the movement of the toothed plate 574, it will come into contact with the outer wall of the gear 576, causing the gear 576 to rotate. The gear 576 drives the round rod 575 to rotate. The round rod 575 drives the special-shaped tunnel block 577 to rotate. During the rotation of the special-shaped tunnel block 577, it will come into contact with the end of the tail seal brush 4, making the tail seal brush 4 simulate the movement state of cleaning in the tunnel, improving the diversity of the device for detecting the tail seal brush 4. The auxiliary component 57 includes a second rotating plate 571 rotatably connected to one side of the top of the lifting rod 556. One end of the second rotating plate 571 away from the lifting rod 556 is rotatably connected to a slider 572. The outer wall of the bottom end of the slider 572 is slidably connected to the inner wall of the square plate 555. One side of the slider 572 is fixedly connected to a connecting rod 573.

[0047] One end of the connecting rod 573 is fixedly connected to a toothed plate 574. The bottom end of the toothed plate 574 is meshed with a gear 576. The inner wall of the gear 576 is fixedly connected to a round rod 575. One end of the round rod 575 is rotatably connected to the side wall of the square plate 555. The outer wall of the end of the round rod 575 close to the gear 576 is fixedly connected to a special-shaped tunnel block 577.

[0048] A support component 58 is provided at the end of the threaded plate 54. The support component 58 includes a bent rod 581 fixedly connected to one end of the threaded plate 54. The bottom end of the bent rod 581 penetrates through the working shell 1 and extends into the interior of the working shell 1. The bottom end of the bent rod 581 is rotatably connected to a first rotating bar 582. The bottom end of the first rotating bar 582 is rotatably connected to a moving member 583. The bottom of the moving member 583 is slidably connected to the inner bottom wall of the working shell 1. One end of the moving member 583 away from the first rotating bar 582 is rotatably connected to a second rotating bar 584. One end of the second rotating bar 584 away from the moving member 583 is rotatably connected to a lifting plate 585.

[0049] On both sides of the inner wall of the working shell 1, limiting grooves 586 are respectively opened. The outer walls of both ends of the lifting plate 585 are respectively slidably connected to the inner wall of the limiting groove 586. A fixing rod 587 is fixedly connected to the top of the lifting plate 585. The top end of the fixing rod 587 is rotatably connected to a rotating member 588. A supporting plate 589 is fixedly connected to the top of the rotating member 588. On both sides of the bottom of the supporting plate 589, arc-shaped springs 5810 are respectively fixedly connected. One end of the arc-shaped spring 5810 is fixedly connected to the side wall of the fixing rod 587. Under the downward pressure of the rotating member 588, the shield tail brush 4 is simulated to have zero clearance between segments, and the limit state of the shield tail brush 4 is simulated and detected, further improving the diversity of the device for detecting the shield tail brush 4. Due to the elastic deformation of the arc-shaped spring 5810, when the supporting plate 589 contacts the bent shield tail brush 4, it can perform a perfect fitting operation, preventing the supporting plate 589 from getting stuck when contacting the shield tail brush 4, and improving the stability of the device operation.

[0050] The testing method of the shield tail brush performance testing device includes the following steps:

[0051] Step 1: Conduct an angle detection on the shield tail brush 4. Place the shield tail brush 4 on the top of the working shell 1, start the forward and reverse motor 51. The forward and reverse motor 51 drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the lead screw 53 to rotate. Limited by the limiting rod 551, the lead screw 53 drives the threaded plate 54 to move downward along the outer wall of the limiting rod 551. The threaded plate 54 drives the square rod 553 to descend. The square rod 553 drives the concave plate 554 to descend. The concave plate 554 drives the square plate 555 to descend. The square plate 555 drives the lifting frame rod 556 to descend. The lifting frame rod 556 drives the pressing plate 558 to descend. When the pressing plate 558 descends, it will contact the top of the shield tail brush 4, thereby performing a pressing operation on the shield tail brush 4.

[0052] Step 2: Improve the stability of the shield tail brush 4 detection. When the clamping member 567 clamps the shield tail brush 4, under the reaction force of the shield tail brush 4, the clamping member 567 drives the sliding plate 566 to move into the interior of the square shell 564. The clamping member 567 and the square shell 564 gradually approach. And due to the setting of the sliding hole 568, the first rotating plate 569 drives the spring frame 5610 to descend along the inner wall of the sliding hole 568. During the descent of the spring frame 5610, it will contact the top of the shield tail brush 4 and press the tail of the shield tail brush 4.

[0053] Step 3: Detect the cleaning of the tunnel by the shield tail brush 4. When the concave plate 554 descends, the bottom of the concave plate 554 will contact the top of the spring frame 5610, pressing down on the spring frame 5610, improving the pressing effect of the spring frame 5610 on the shield tail brush 4. When the pressing plate 558 presses on the shield tail brush 4, due to the reaction force of the shield tail brush 4, the pressing plate 558 drives the lifting rod 556 to move upward along the inner wall of the square plate 555. The lifting rod 556 drives the second rotating plate 571 to move upward. Limited by the square plate 555, the second rotating plate 571 drives the slider 572 to move along the inner wall of the square plate 555. The slider 572 drives the connecting rod 573 to move. The connecting rod 573 drives the toothed plate 574 to move. The two toothed plates 574 move away from each other. During the movement of the toothed plate 574, it will contact the outer wall of the gear 576, causing the gear 576 to rotate. The gear 576 drives the round rod 575 to rotate. The round rod 575 drives the special-shaped tunnel block 577 to rotate. During the rotation of the special-shaped tunnel block 577, it will contact the end of the shield tail brush 4;

[0054] Step 4: Detect the extreme state of the shield tail brush 4. When the threaded plate 54 descends, the threaded plate 54 drives the bent rod 581 to descend. The bent rod 581 drives the first rotating bar 582 to descend. Limited by the working shell 1, the first rotating bar 582 drives the moving part 583 to move along the bottom of the inner wall of the working shell 1. The moving part 583 drives the second rotating bar 584 to move. Limited by the limiting groove 586, the second rotating bar 584 drives the lifting plate 585 to move upward along the inner wall of the limiting groove 586. The lifting plate 585 drives the fixed rod 587 to move upward. The fixed rod 587 drives the rotating part 588 to move upward. The rotating part 588 drives the support plate 589 to move upward. During the upward movement of the support plate 589, it will contact the bottom of the shield tail brush 4. At the same time, under the downward pressure of the rotating part 588, the shield tail brush 4 simulates zero clearance between the segments.

[0055] During use, place the tail shield brush 4 on the top of the working shell 1. Start the forward and reverse motor 51. The forward and reverse motor 51 drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the lead screw 53 to rotate. Restricted by the limit rod 551, the lead screw 53 drives the threaded plate 54 to move downward along the outer wall of the limit rod 551. The threaded plate 54 drives the square rod 553 to descend. The square rod 553 drives the concave plate 554 to descend. The concave plate 554 drives the square plate 555 to descend. The square plate 555 drives the lifting frame rod 556 to descend. The lifting frame rod 556 drives the pressing plate 558 to descend. When the pressing plate 558 descends, it will contact the top of the tail shield brush 4, thereby performing a pressing operation on the tail shield brush 4 and detecting the angular change of the tail shield brush 4. At the same time, when the threaded plate 54 descends, the threaded plate 54 drives the cross bar 561 to descend. The cross bar 561 drives the rotating rod 563 to descend. Restricted by the working shell 1, the rotating rod 563 drives the square shell 564 to slide along the top of the working shell 1. The square shell 564 drives the sliding plate 566 to move. The sliding plate 566 drives the clamping members 567 to move. The two clamping members 567 move closer to each other, thereby performing a clamping operation on the tail shield brush 4 to prevent the tail shield brush 4 from moving when being pressed, and laterally improving the accuracy of the angular detection of the tail shield brush 4.

[0056] When the clamping members 567 clamp the tail shield brush 4, due to the reaction force of the tail shield brush 4, the clamping members 567 drive the sliding plate 566 to move into the interior of the square shell 564. The clamping members 567 and the square shell 564 gradually approach. And due to the setting of the sliding hole 568, the first rotating plate 569 drives the spring frame 5610 to descend along the inner wall of the sliding hole 568. During the descent of the spring frame 5610, it will contact the top of the tail shield brush 4 and press the tail of the tail shield brush 4, further preventing the tail shield brush 4 from warping when the angular detection of the tail shield brush 4 is performed, and improving the stability of the detection of the tail shield brush 4.

[0057] When the concave plate 554 descends, the bottom of the concave plate 554 will come into contact with the top of the spring frame 5610, pressing down on the spring frame 5610, improving the pressing effect of the spring frame 5610 on the tail seal brush 4. When the pressing plate 558 presses on the tail seal brush 4, due to the reaction force of the tail seal brush 4, the pressing plate 558 drives the lifting frame rod 556 to move upward along the inner wall of the square plate 555. The lifting frame rod 556 drives the second rotating plate 571 to move upward. Limited by the square plate 555, the second rotating plate 571 drives the slider 572 to move along the inner wall of the square plate 555. The slider 572 drives the connecting rod 573 to move. The connecting rod 573 drives the toothed plate 574 to move. The two toothed plates 574 move away from each other. During the movement of the toothed plate 574, it will come into contact with the outer wall of the gear 576, causing the gear 576 to rotate. The gear 576 drives the round rod 575 to rotate. The round rod 575 drives the special-shaped tunnel block 577 to rotate. During the rotation of the special-shaped tunnel block 577, it will come into contact with the end of the tail seal brush 4, causing the tail seal brush 4 to simulate the cleaning motion state in the tunnel, improving the diversity of the device's detection of the tail seal brush 4.

[0058] When the threaded plate 54 descends, the threaded plate 54 drives the bent rod 581 to descend. The bent rod 581 drives the first rotating bar 582 to descend. Limited by the working shell 1, the first rotating bar 582 drives the moving part 583 to move along the bottom inner wall of the working shell 1. The moving part 583 drives the second rotating bar 584 to move. Limited by the limiting groove 586, the second rotating bar 584 drives the lifting plate 585 to move upward along the inner wall of the limiting groove 586. The lifting plate 585 drives the fixed rod 587 to move upward. The fixed rod 587 drives the rotating part 588 to move upward. The rotating part 588 drives the support plate 589 to move upward. During the upward movement of the support plate 589, it will come into contact with the bottom of the tail seal brush 4. At the same time, under the downward pressure of the rotating part 588, the tail seal brush 4 is simulated to have zero clearance between the segments, and the limit state of the tail seal brush 4 is simulated and detected, further improving the diversity of the device's detection of the tail seal brush 4. Due to the elastic deformation of the arc spring 5810, the support plate 589 can be perfectly fitted when contacting the bent tail seal brush 4, preventing the support plate 589 from getting stuck when contacting the tail seal brush 4, and improving the stability of the device operation.

[0059] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. Shield tail brush performance testing device, characterized in that: It includes a working shell (1), a support frame (2) is fixedly connected to the top of the working shell (1), a square hole (3) is opened at the top of the working shell (1), and a tail seal brush (4) is in contact with the top of the working shell (1) near the support frame (2). It also includes; A performance detection mechanism (5), the performance detection mechanism (5) includes a forward and reverse motor (51), a rotating shaft (52), a lead screw (53), a threaded plate (54), and a detection component (55) for detecting the tail seal brush (4); The bottom of the forward and reverse motor (51) is fixedly connected to the top of the support frame (2), the top of the rotating shaft (52) is fixedly connected to the output end of the forward and reverse motor (51), the inner wall of the lead screw (53) is fixedly connected to the outer wall of the rotating shaft (52), and the inner wall of the threaded plate (54) is threadedly connected to the outer wall of the lead screw (53).

2. The shield tail brush performance testing device according to claim 1, wherein: The detection component (55) includes a limiting rod (551) fixedly connected to the top of the inner wall of the support frame (2), one end of the limiting rod (551) penetrates through the threaded plate (54) and extends to the outside of the threaded plate (54), a return spring (552) is fixedly connected to the top of the threaded plate (54), the top of the return spring (552) is fixedly connected to the top of the inner wall of the support frame (2), and square rods (553) are respectively fixedly connected to both sides of the bottom of the threaded plate (54).

3. The shield tail brush performance test device according to claim 2, characterized in that: A concave plate (554) is fixedly connected to the bottom of the square rod (553), a square plate (555) is fixedly connected to one side of the concave plate (554), lifting frame rods (556) penetrate through and are slidably connected to both sides of the top of the square plate (555), an extrusion plate (558) is fixedly connected to the bottom of the lifting frame rod (556), and first springs (557) are respectively fixedly connected to both sides of the top of the extrusion plate (558) close to the lifting frame rod (556), and the top of the first spring (557) is fixedly connected to the bottom of the square plate (555).

4. The shield tail brush performance testing device according to claim 3, characterized in that: A stability component (56) is arranged on the side wall of the threaded plate (54), the stability component (56) includes cross bars (561) fixedly connected to both sides of the threaded plate (54), vertical grooves (562) are respectively opened on both sides of the inner wall of the support frame (2), one end of the outer wall of the cross bar (561) is slidably connected to the inner wall of the vertical groove (562), a rotating rod (563) is rotatably connected to the bottom of the cross bar (561), one end of the rotating rod (563) away from the cross bar (561) is rotatably connected to a square shell (564), and the bottom of the square shell (564) is slidably connected to the top of the working shell (1).

5. The shield tail brush performance testing device according to claim 4, wherein: On one side of the inner wall of the square shell (564), a second spring (565) is fixedly connected. One end of the second spring (565) is fixedly connected to a sliding plate (566). The outer wall of the sliding plate (566) is slidably connected to the inner wall of the square shell (564). On the side of the sliding plate (566) away from the second spring (565), a clamping member (567) is fixedly connected. A sliding hole (568) is formed on one side of the clamping member (567). At the top end of the inner wall of the sliding hole (568), a spring bracket (5610) is slidably connected. One end of the spring bracket (5610) is rotatably connected to a first rotating plate (569). One end of the first rotating plate (569) is rotatably connected to one side of the outer wall of the square shell (564).

6. The shield tail brush performance testing device according to claim 5, characterized in that: At the top end of the lifting frame rod (556), an auxiliary component (57) is provided. The auxiliary component (57) includes a second rotating plate (571) rotatably connected to one side of the top end of the lifting frame rod (556). One end of the second rotating plate (571) away from the lifting frame rod (556) is rotatably connected to a slider (572). The outer wall of the bottom end of the slider (572) is slidably connected to the inner wall of the square plate (555). One side of the slider (572) is fixedly connected to a connecting rod (573).

7. The shield tail brush performance testing device according to claim 6, wherein: One end of the connecting rod (573) is fixedly connected to a toothed plate (574). The bottom end of the toothed plate (574) is meshed with a gear (576). The inner wall of the gear (576) is fixedly connected to a round rod (575). One end of the round rod (575) is rotatably connected to the side wall of the square plate (555). On the outer wall of the end of the round rod (575) close to the gear (576), a special-shaped tunnel block (577) is fixedly connected.

8. The shield tail brush performance testing device according to claim 7, characterized in that: At the end of the threaded plate (54), a support component (58) is provided. The support component (58) includes a bent rod (581) fixedly connected to one end of the threaded plate (54). The bottom end of the bent rod (581) penetrates through the working shell (1) and extends into the interior of the working shell (1). The bottom end of the bent rod (581) is rotatably connected to a first rotating bar (582). The bottom end of the first rotating bar (582) is rotatably connected to a moving part (583). The bottom of the moving part (583) is slidably connected to the bottom of the inner wall of the working shell (1). One end of the moving part (583) away from the first rotating bar (582) is rotatably connected to a second rotating bar (584). One end of the second rotating bar (584) away from the moving part (583) is rotatably connected to a lifting plate (585).

9. The shield tail brush performance testing device according to claim 8, wherein: On both sides of the inner wall of the working shell (1), limiting grooves (586) are respectively opened. The outer walls of both ends of the lifting plate (585) are respectively slidably connected to the inner walls of the limiting grooves (586). A fixing rod (587) is fixedly connected to the top of the lifting plate (585). The top end of the fixing rod (587) is rotatably connected to a rotating member (588). A supporting plate (589) is fixedly connected to the top of the rotating member (588). Arc-shaped springs (5810) are respectively fixedly connected to both sides of the bottom of the supporting plate (589). One end of the arc-shaped spring (5810) is fixedly connected to the side wall of the fixing rod (587).

10. Shield tail brush performance testing device and its testing method, adopting the building construction surveying and mapping device as described in claim 9, characterized in that: It includes the following steps, Step 1: Conduct an angle detection on the tail seal brush (4). Place the tail seal brush (4) on the top of the working shell (1), start the forward and reverse motor (51). The forward and reverse motor (51) drives the rotating shaft (52) to rotate. The rotating shaft (52) drives the lead screw (53) to rotate. Limited by the limiting rod (551), the lead screw (53) drives the threaded plate (54) to move downward along the outer wall of the limiting rod (551). The threaded plate (54) drives the square rod (553) to descend. The square rod (553) drives the concave plate (554) to descend. The concave plate (554) drives the square plate (555) to descend. The square plate (555) drives the lifting frame rod (556) to descend. The lifting frame rod (556) drives the pressing plate (558) to descend. When the pressing plate (558) descends, it will contact the top of the tail seal brush (4), thereby performing a pressing operation on the tail seal brush (4); Step 2: Improve the stability of the detection of the tail seal brush (4). When the clamping member (567) clamps the tail seal brush (4), affected by the reaction force of the tail seal brush (4), the clamping member (567) drives the sliding plate (566) to move into the interior of the square shell (564). The clamping member (567) and the square shell (564) gradually approach. And due to the setting of the sliding hole (568), the first rotating plate (569) drives the spring frame (5610) to descend along the inner wall of the sliding hole (568). During the descent of the spring frame (5610), it will contact the top of the tail seal brush (4) and press the tail of the tail seal brush (4); Step 3: Detect the cleaning of the tunnel by the shield tail brush (4). When the concave plate (554) descends, the bottom of the concave plate (554) will contact the top of the spring frame (5610), pressing down on the spring frame (5610), improving the pressing effect of the spring frame (5610) on the shield tail brush (4). When the pressing plate (558) presses on the shield tail brush (4), due to the reaction force of the shield tail brush (4), the pressing plate (558) drives the lifting frame rod (556) to move upward along the inner wall of the square plate (555). The lifting frame rod (556) drives the second rotating plate (571) to move upward. Limited by the square plate (555), the second rotating plate (571) drives the slider (572) to move along the inner wall of the square plate (555). The slider (572) drives the connecting rod (573) to move. The connecting rod (573) drives the toothed plate (574) to move. The two toothed plates (574) move away from each other. During the movement of the toothed plate (574), it will contact the outer wall of the gear (576), causing the gear (576) to rotate. The gear (576) drives the round rod (575) to rotate. The round rod (575) drives the special-shaped tunnel block (577) to rotate. During the rotation of the special-shaped tunnel block (577), it will contact the end of the shield tail brush (4). Step 4: Detect the extreme state of the shield tail brush (4). When the threaded plate (54) descends, the threaded plate (54) drives the bent rod (581) to descend. The bent rod (581) drives the first rotating bar (582) to descend. Limited by the working shell (1), the first rotating bar (582) drives the moving part (583) to move along the bottom inner wall of the working shell (1). The moving part (583) drives the second rotating bar (584) to move. Limited by the limiting groove (586), the second rotating bar (584) drives the lifting plate (585) to move upward along the inner wall of the limiting groove (586). The lifting plate (585) drives the fixed rod (587) to move upward. The fixed rod (587) drives the rotating part (588) to move upward. The rotating part (588) drives the support plate (589) to move upward. During the upward movement of the support plate (589), it will contact the bottom of the shield tail brush (4). At the same time, under the downward pressure of the rotating part (588), the shield tail brush (4) simulates zero clearance between the segments.

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