A shield machine drive box body detection device

Abstract

The present application relates to shield machine detection technical field, especially in kind of shield machine drive box box detection device, including the receiving table, the receiving table outside is equipped with annular track, the receiving table outside is equidistant and is equipped with a plurality of slide rails, the receiving table outside and the corresponding slide rail is provided with vertical support, the vertical support top rotatory mounting has the rotary arm, the rotary arm is installed with a plurality of detectors;The present application drives the arc segment movement through the displacement of the slide seat on the slide rail, and the contact type feedback of the contact of the two "V" shaped resistors in the positioning assembly and the side wall of the drive box can dynamically adjust the coaxial line of the annular track and the drive box;At the same time, the vertical coaxial line formed by the butt joint of the rotary arm connecting block coincides with the axis of the drive box, ensures that the annular track axis, vertical coaxial line and drive box axis are coaxial, so that the detector detects along the preset accurate path, effectively solves the detection reference misalignment problem caused by the deformation of the large rotary body workpiece due to self weight and hoisting error.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield tunneling machine detection, and in particular to a shield tunneling machine drive box body detection device. BACKGROUND

[0002] The shield tunneling machine drive box is a key component for transmitting tunneling power, and its structural integrity and manufacturing precision directly determine the construction safety and operation reliability of the shield tunneling machine. The box body is a large circular rotary structure, usually with a diameter of 3-5 meters, and a weight of dozens of tons. The inside is integrated with bearing mounting hole systems, gear meshing surfaces, flange connection ends and other key functional areas. In order to ensure that the use requirements are met, multiple means such as ultrasonic detection, laser profile measurement, and eddy current detection are required to comprehensively detect the box body crack defects, size precision and geometric tolerance.

[0003] In the existing detection technology, the drive box detection operation takes a fixed receiving platform as the reference platform. After the box body is hoisted to the receiving platform by a crane, the detection equipment plans the sensor path with the center axis of the receiving platform as the reference origin. For example, the ultrasonic probe needs to be positioned radially along the center of the receiving platform to detect the bearing hole wall vertically, the laser profilometer needs to scan the flange flatness along the preset concentric circle, and the eddy current detector needs to detect the side wall crack along the fixed radius ring path. The existing technology requires that the coaxiality of the drive box and the receiving platform be controlled within a small range, and this precision depends on high-precision hoisting equipment and manual repeated calibration.

[0004] In actual industrial scenarios, due to factors such as box body self-weight deformation, crane positioning error, receiving platform installation deviation, etc., there is often a significant coaxiality deviation between the center of the box body and the center of the receiving platform after the box body is placed. The existing technology lacks effective response mechanisms, leading to many problems: first, the sensor detection path is directly bound to the receiving platform reference, and when there is a deviation, the preset path is misaligned with the actual structure of the box body, the laser profilometer may scan to the non-detection area of the side wall, causing data distortion, the ultrasonic probe may tilt and contact the hole wall, causing signal attenuation, and the eddy current detector may deviate from the effective detection range, forming a blind area; second, the existing compensation methods have limitations, manual secondary hoisting or jack pushing is not only cumbersome and time-consuming, but also limited by the weight of the box body, making it difficult to meet the high precision requirements of detection, which seriously affects the detection efficiency and accuracy.

[0005] In summary, the existing shield tunneling machine drive box detection technology relies too much on the fixed reference of the receiving platform and cannot effectively respond to the inevitable coaxiality deviation problem during hoisting. Therefore, there is an urgent need for a detection technology scheme that can dynamically adapt to the actual axis of the drive box to solve the above technical defects. SUMMARY

[0006] To solve the above problems, the present application provides a shield tunneling machine drive box body detection device.

[0007] The utility model provides a kind of shield machine drive box box detection device, including receiving table, the outside of receiving table is equipped with annular track, annular track is detachably composed of multiple arc segments, the outside of receiving table is equidistantly equipped with multiple slide rails, slide rail is slidably equipped with slide seat, slide seat is rotatably installed with mounting plate, one of the arc segments is detachably installed on mounting plate;

[0008] The outside of receiving table and corresponding slide rail are provided with a vertical support, the bottom of the vertical support is provided with an electric base that slides on the annular track, the vertical support is provided with a positioning assembly, the relative position of the arc segment connected with the slide seat is adjusted by the positioning assembly, and the coaxial line of the arc segment and the drive box is realized.

[0009] The top of the vertical support is rotatably provided with a rotating arm, the front end of the rotating arm is rotatably provided with a connecting block, and the vertical coaxial line formed after the rotating arm is rotated to butt joint the multiple connecting blocks is coincident with the axis of the drive box, so that the coaxial coincidence of the vertical coaxial line, the axis of the annular track and the axis of the drive box is realized.

[0010] The rotating arm is provided with multiple detectors.

[0011] Preferably, the positioning assembly comprises a positioning frame mounted on the vertical support by bolts, the positioning frame is provided with a transverse rod on the side facing the receiving table, a diagonal brace is provided between the transverse rod and the lower end of the positioning frame, a threaded rod is slidably provided through one end of the transverse rod away from the positioning frame, a positioning block is connected to the other end of the threaded rod, and an adjusting hand wheel is rotatably mounted at one end of the transverse rod and threadedly connected with the threaded rod.

[0012] Preferably, the side wall of the positioning block is symmetrically rotatably provided with two abutting pieces, the two abutting pieces are in the shape of "V" with the opening facing the drive box, and a spring is connected between the two abutting pieces, and a roller is rotatably provided at the front end of the abutting piece and in rolling contact with the side wall of the drive box.

[0013] Preferably, the bottom of the positioning block is provided with a horizontal guide rod through a connecting plate, and the other end of the guide rod is slidably provided through the diagonal brace.

[0014] Preferably, a limiting piece is provided on the threaded rod, the limiting piece comprises a limiting block slidably provided on the threaded rod and a limiting hand wheel threadedly connected to the threaded rod, the limiting hand wheel is rotatably connected with the limiting block, the limiting block is symmetrically provided with an abutting rod, the front end of the abutting rod is configured in T-shaped structure and rotatably sleeved with a limiting sleeve.

[0015] Preferably, a rotating shaft is rotatably mounted on the upper segment of the rotating arm corresponding to the position of the detector, the rotating shaft is sleeved with a mounting seat, an extension rod is mounted on the mounting seat, and the detector is mounted on the extension end of the extension rod.

[0016] Preferably, a limiting plate is connected to the bottom of the limiting block, and the limiting plate is slidably sleeved with the guide rod.

[0017] Preferably, a positioning bolt is screwed on the mounting plate and acts on the upper surface of the sliding seat.

[0018] Preferably, a positioning rotating shaft is arranged in the bottom of the vertical support, a support rod is rotatably arranged on the positioning rotating shaft, one end of the support rod is arranged in the interior of the rotating arm and located in the lower end region of the rotating center, and sliding rods are arranged on the upper end of the support rod.

[0019] Preferably, a H-shaped frame is arranged on the vertical support, the H-shaped frame is fastened on the vertical support through bolts, a circular hole is arranged in the part of the side wall of the H-shaped frame extending out of the vertical support, a limiting pin is inserted into the circular hole, and a strip-shaped hole is arranged in the bottom region of the support rod for the limiting pin to pass through.

[0020] In summary, the present application has the following beneficial technical effects:

[0021] Firstly, the present application drives the movement of the arc-shaped section through the displacement of the sliding seat on the sliding rail, dynamically adjusts the coaxiality of the annular track and the driving box through the contact feedback of the two V-shaped abutting members in the positioning assembly and the side wall of the driving box, and ensures the coaxiality of the annular track axis, the vertical coaxial line formed by the abutting of the rotating arm connecting blocks, and the driving box axis, so that the detector detects along the preset accurate path, and the problem of misalignment of the detection reference caused by the deformation of the large-sized rotary workpiece due to its own weight and the lifting error is effectively solved.

[0022] Secondly, the rotating arm of the present application integrates the eddy current detector, the laser profiler, and the ultrasonic probe, and the multi-dimensional detection such as the side wall crack, the flange flatness, and the bearing hole wall perpendicularity can be completed through the movement of the electric base along the annular track; the setting of the telescopic rod and the rotating shaft enables the detector to adapt to the detection requirements of driving boxes of different specifications, and the meshing of the toothed plate and the gear and the locking function of the limiting pin ensure the stability of the detector during the detection process.

[0023] Thirdly, the limiting member of the threaded rod in the positioning assembly of the present application can adjust the unfolding angle of the abutting member through the screwing of the limiting hand wheel, so as to adapt to driving boxes of different diameters; the annular track is composed of a plurality of arc-shaped sections and can be disassembled, so that the annular track does not need to be replaced as a whole due to the change of the specification of the driving box, and the coaxial calibration of the annular track and the driving box of different specifications can be realized through the adjustment of the sliding seat and the positioning assembly. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described below in combination with the drawings and examples.

[0025] Figure 1 is a structural schematic diagram of the present application.

[0026] Figure 2 is a structural schematic diagram of the annular track, the vertical support, and the positioning assembly of the present application.

[0027] Figure 3 is a structural schematic view of the vertical support and the positioning assembly of the present application.

[0028] Figure 4 is a structural schematic view of the vertical support of the present application. Figure 3

[0029] Figure 5 is a structural schematic view of the positioning assembly of the present application.

[0030] Figure 6 is a structural schematic view of the vertical support and the rotating arm of the present application.

[0031] Figure 7 is a structural schematic view of the rotating arm of the present application. Figure 6

[0032] Figure 8 is a structural schematic view of the rotating arm of the present application. Figure 6

[0033] Figure 9 is a structural schematic view of the rotating arm of the present application.

[0034] Figure 10 is a structural schematic view of the rotating arm, the telescopic rod and the detector of the present application.

[0035] Figure 11 is a structural schematic view of the rotating arm, the control strip, the convex block and the toothed plate of the present application.

[0036] Figure 12 is a structural schematic view of the rotating arm of the present application. Figure 11

[0037] ​​​​In the figure, 1, receiving table; 2, annular track; 3, auxiliary support; 4, slide rail; 41, sliding seat; 42, mounting plate; 43, vertical support; 44, electric base; 5, positioning assembly; 6, rotating arm; 7, detector; 501, positioning frame; 502, transverse rod; 503, inclined brace; 504, threaded rod; 505, positioning block; 506, adjusting hand wheel; 507, connecting plate; 508, guide rod; 509, abutting piece; 510, spring I; 511, roller; 512, positioning bolt; 601, connecting block; 602, rotating shaft; 603, mounting seat; 604, telescopic rod; 605, toothed plate; 606, limiting rod; 607, spring II; 608, gear; 609, L-shaped plate; 610, control bar; 612, electric push rod; 613, protruding block; 614, strip-shaped groove; 620, positioning rotating shaft; 621, supporting rod; 622, sliding rod; 623, sliding groove; 624, U-shaped frame; 625, limiting pin; 626, strip-shaped hole; 521, limiting block; 522, limiting hand wheel; 523, abutting rod; 524, limiting sleeve; 525, limiting plate. DETAILED DESCRIPTION

[0038] The following Figures 1-12 The embodiments of the present application are described in detail.

[0039] Embodiment I:

[0040] Referring to Figures 1 to 3 A shield machine drive box body detection device, comprising a receiving table 1 for placing the drive box, an annular track 2 is arranged on the outer side of the receiving table 1, the bottom of the annular track 2 is provided with telescopic legs for adjusting the levelness of the annular track 2, the annular track 2 is composed of a plurality of arc segments which are detachably connected by auxiliary supports 3 (the end faces of the arc segments are provided with mortise and tenon matching structures, such as bosses and grooves, so that the arc segments can be fastened on the auxiliary supports 3 by bolts), and the bottom of the auxiliary supports 3 is also provided with telescopic legs for adjusting the height thereof.

[0041] The number of arc segments can be determined according to the diameter range of the drive box, for example, the arc segments can be equally divided into four segments, or equally divided into eight segments (as shown in Figure 1 and Figure 2 ).

[0042] A plurality of slide rails 4 are arranged on the outer side of the receiving table 1 at equal intervals, the bottom of the slide rails 4 is also provided with telescopic legs for adjusting the levelness thereof, wherein the telescopic legs are preferably screw lifting legs, the front end of the slide rail 4 is detachably mounted with the receiving table 1, a sliding seat 41 is slidingly arranged on the slide rail 4, and a mounting plate 42 is rotatably mounted on the sliding seat 41 by a rotating shaft, and one arc segment is detachably (can be fixed by bolts) mounted on the mounting plate 42.

[0043] The vertical support 43 is provided with an electric base 44 which slides on the annular track 2 at the bottom of the vertical support 43, and the positioning assembly 5 is installed on the vertical support 43, and the relative position of the arc-shaped section connected with the sliding base 41 is adjusted through the positioning assembly 5 to realize the coaxial line of the arc-shaped section and the driving box.

[0044] The rotating arm 6 is rotatably installed at the top of the vertical support 43, and a plurality of detectors 7 for detecting the driving box are installed on the rotating arm 6, and the detectors 7 include eddy current detectors, laser profilometers and ultrasonic probes.

[0045] The vertical support 43 is provided with a U-shaped structure with the opening facing the side of the receiving table 1, and the rotating arm 6 is provided with a U-shaped structure with the opening facing the side of the receiving table 1, and the rotating arm 6 is rotatably received in the vertical support 43 along the lower segment region of the rotating center.

[0046] At the beginning, the driving box to be detected is hoisted to the receiving table 1 by the crane, and the annular track 2 needs to be adjusted before starting the detection to ensure that it is coaxial with the driving box. Therefore, first of all, the arc-shaped track not connected with the sliding rail 4 needs to be disassembled before starting, and then the arc-shaped section on the mounting plate 42 and the positioning assembly 5 on the vertical support 43 are moved by moving the sliding base 41 to move towards the outer wall of the driving box until the front end of the positioning assembly 5 contacts the outer wall of the driving box, at which time the arc-shaped section is coaxial with the driving box axis, and then the arc-shaped section disassembled at the beginning is reinstalled to form a complete annular track 2, and at this time the annular track 2 is coaxial with the driving box.

[0047] After determining that the annular track 2 is coaxial with the driving box, the rotating arm 6 is rotated with the upper end thereof facing the center of the driving box until the plurality of connecting blocks 601 are completely docked to form a vertical coaxial line, and the vertical coaxial line is coaxial with the driving box axis, and then the detectors 7 are started, the eddy current detectors, laser profilometers and ultrasonic probes are installed at the position of the rotating arm 6 above the driving box, the vertical support 43 is moved along the annular track 2 by the electric base 44, and the detectors 7 are scanned one by one to complete the detection of the driving box body. After the detection is completed, the rotating arm 6 is reversely rotated to reset.

[0048] The eddy current detector detects the side wall crack according to the established path of the annular track 2, the laser profilometer scans the flange flatness according to the established path of the annular track 2 concentrically and circumferentially, and the ultrasonic probe is positioned radially along the center of the receiving table 1 to vertically detect the bearing hole wall, and the eddy current detector, the laser profilometer and the ultrasonic probe all adopt the existing technology, which will not be described herein.

[0049] Referring to Figure 1 and Figure 6As shown, the front end of the rotating arm 6 is provided with a connecting block 601 through a rotating shaft, the rotating arm 6 is centrally rotated to be connected to the plurality of connecting blocks 601, the vertical coaxial line formed after the plurality of connecting blocks 601 are connected is coincident with the axis of the drive box, and the coaxial coincidence of the three of the vertical coaxial line, the axis of the ring track 2 and the axis of the drive box ensures the accurate alignment of the detector 7 in the scanning process, avoids errors, and thus realizes high-precision detection.

[0050] In summary, the displacement of the sliding seat 41 on the slide rail 4 drives the arc segment position adjustment, the contact feedback of the positioning assembly 5 and the side wall of the drive box is combined, the real-time coincidence of the central axis of the ring track 2 and the axis of the drive box is realized, the rotating arm 6 is integrated with an eddy current detector, a laser profiler and an ultrasonic probe, the continuous movement of the electric base 44 along the ring track 2 realizes the detection of the side wall crack, the flange flatness and the bearing hole wall perpendicularity, and solves the problem of detection reference misalignment caused by the deformation due to the self-weight and the lifting error of the large-sized rotary workpiece (for example, the drive box body of the shield machine).

[0051] The abutting faces of the adjacent two connecting blocks 601 are embedded with magnets with opposite magnetic properties (not shown in the figure), and the positioning pins and pin holes are arranged on the abutting faces of the connecting blocks 601, so that the abutting faces of the adjacent two connecting blocks 601 are inserted and matched through the positioning pins and pin holes and are adsorbed by the magnets, which ensures the smooth abutment of the adjacent connecting blocks 601 and enhances the connection stability.

[0052] Referring to Figures 3 to 5 As shown, the positioning assembly 5 includes a positioning frame 501 mounted on the vertical support 43 through bolts, the positioning frame 501 is provided with a transverse rod 502 on the side facing the receiving table 1, a diagonal brace 503 is arranged between the transverse rod 502 and the lower end of the positioning frame 501, and the diagonal brace 503 is used to enhance the transverse supporting force of the transverse rod 502. A threaded rod 504 is slidably arranged at one end of the transverse rod 502 away from the positioning frame 501, the other end of the threaded rod 504 is connected with a positioning block 505, one end of the transverse rod 502 is rotatably mounted with an adjusting hand wheel 506 threadedly connected with the threaded rod 504, the positioning block 505 is slid along the transverse rod 502 by rotating the hand wheel to drive the threaded rod 504 to move, the bottom of the positioning block 505 is provided with a horizontal guide rod 508 through a connecting plate 507, the other end of the guide rod 508 is slidably arranged in the diagonal brace 503, and the rotation of the adjusting hand wheel 506 does not tilt the positioning block 505 as a whole.

[0053] Further, the positioning frame 501 can slide along the vertical support 43 to adjust the height of the transverse rod 502, so as to adapt to the detection requirements of drive boxes with different heights, ensure that the positioning block 505 is always close to the side wall of the drive box, realize accurate positioning, and after being adjusted to the specified position, the positioning frame 501 is fastened to the vertical support 43 again through bolts.

[0054] The side wall of the positioning block 505 is symmetrically provided with a contact piece 509, the two contact pieces 509 are in the shape of "V" with the opening facing the drive box, and the two contact pieces 509 are connected by a spring 510, the spring 510 has a tendency to pull the two contact pieces 509 inward, the front end of the contact piece 509 is rotatably provided with a roller 511 in rolling contact with the side wall of the drive box, the surface of the roller 511 is covered with wear-resistant material to ensure smooth contact.

[0055] When the sliding seat 41 moves along the slide rail 4 towards the direction of the drive box, the vertical support 43 drives the positioning frame 501 and the horizontal rod 502 to move forward, the contact piece 509 moves with the horizontal rod 502 through the threaded rod 504 and the positioning frame 501, the roller 511 is in contact with the side wall of the drive box, and as the sliding seat 41 continues to move, the roller 511 rolls on the side wall of the drive box and drives the two contact pieces 509 to spread outward, and the spring 510 is stretched until the two contact pieces 509 are fully spread out.

[0056] In the above process, the two contact pieces 509 are spread out and closely fit with the side wall of the drive box to form a stable support point, ensuring that the length direction of the horizontal rod 502 is consistent with the radial direction of the drive box, and in the process, if the placement position of the drive box on the receiving table 1 deviates too much, the horizontal rod 502 may rotate slightly with the vertical support 43 as the center of rotation on the shaft of the sliding seat 41 during the spreading process of the contact piece 509, to ensure that the length direction of the horizontal rod 502 is always aligned with the radial direction of the drive box, thereby accurately correcting the detection reference.

[0057] In addition, since the annular track 2 is composed of a plurality of arc-shaped segments that can be disassembled, if the arc-shaped segment of the corresponding radius needs to be replaced every time for detection of different specifications of the drive box, and then the annular track 2 with the diameter that is adapted is formed, this results in that each different specification of the drive box has a corresponding specification of the annular track 2, and in order to avoid this situation, under the condition that the diameter of the annular track 2 does not change, if it is for different specifications of the drive box, the distance from the positioning block 505 to the horizontal rod 502 can be changed by rotating the adjusting hand wheel 506, so that the radial size of different drive boxes can be adapted without changing the annular track 2, flexible adjustment is realized, and the coaxial line of the drive box and the annular track 2 is ensured to be quickly adjusted.

[0058] Further, the mounting plate 42 is threadedly connected with a positioning bolt 512, the positioning bolt 512 is screwed to act on the upper surface of the sliding seat 41, and when the vertical support 43 is in contact with the side wall of the drive box through the two rollers 511, the vertical support 43 is adaptively rotated through the shaft of the mounting seat 603, and then the rotation angle of the vertical support 43 is adjusted, after the adjustment is completed, the positioning bolt 512 is screwed to fix the vertical support 43, preventing the vertical support 43 from rotating with the shaft during detection.

[0059] Embodiment two:

[0060] ReferenceFigure 6 and Figure 10 As shown in FIG. 6, on the basis of the embodiment one, a rotating shaft 602 is installed at the position corresponding to the detector 7 on the upper section of the rotating arm 6, the rotating shaft 602 is sleeved with a mounting seat 603, and the mounting seat 603 is installed with an extension rod 604, and the detector 7 is installed at the extension end of the extension rod 604. When the rotating arm 6 is connected to the ring track 2 of different specifications, the rotating angle of the rotating arm 6 is different, and when the rotating arm 6 rotates to different angles, the extension rod 604 can be self-adaptively rotated around the rotating shaft 602 under the action of gravity, so as to keep the detector 7 always perpendicular to the surface of the ring track 2, and the extension rod 604 can be preferentially selected as an electric extension rod, so as to adjust the distance between the detector 7 and the surface of the driving box, so as to adapt to the detection requirements of the driving box of different specifications.

[0061] In addition, the vertical support 43 moves around the ring track 2 through the electric base 44, and the detector 7 swings due to the rotating shaft 602 during the movement. In order to avoid this situation, the side of the rotating arm 6 away from the ring track 2 is provided with a toothed plate 605, and the toothed plate 605 is slidably provided with a limiting rod 606 on both sides. One end of the limiting rod 606 is fixed on the side wall of the rotating arm 6, and the other end is provided with a spring 2 607 between the toothed plate 605. Through the compression and release of the spring 2 607, the spacing between the toothed plate 605 and the side wall of the rotating arm 6 is controlled.

[0062] Meanwhile, the rotating shaft 602 is installed with a gear 608 engaged with the toothed plate 605. When the extension rod 604 and the rotating shaft 602 rotate, the gear 608 will rotate coaxially. The side wall of the rotating arm 6 is provided with a through hole for the teeth of the toothed plate 605 to extend into the rotating arm 6 and engage with the gear 608. When the extension rod 604 is in the vertical state, the compression force of the spring 2 607 makes the toothed plate 605 tightly engage with the gear 608, so as to limit the swing of the rotating arm 6 and ensure that the detector 7 is stably perpendicular to the surface of the track when the vertical support 43 moves along the ring track 2, so as to ensure the detection accuracy.

[0063] Referring to Figure 11 and Figure 12As shown, the toothed plate 605 has an L-shaped plate 609 on its side wall, and a control bar 610 is slidably mounted on the side wall of the L-shaped plate 609. An electric push rod 612 is mounted on the side wall of the rotating arm 6. The telescopic end of the electric push rod 612 is connected to one end of the control bar 610 to drive the control bar 610 to slide within the L-shaped plate 609. The side wall of the L-shaped plate 609 has a protrusion 613 that abuts against the control bar 610. The upper section of the control bar 610 has a strip-shaped groove 614 corresponding to the protrusion 613, and the corner of the strip-shaped groove 614 is set as a slope. When the electric push rod 612 extends or retracts, the control bar 610 slides along the L-shaped plate 609. The slope design causes the protrusion 613 to gradually embed into the strip-shaped groove 614, or the protrusion 613 to gradually dislodge from the strip-shaped groove 614.

[0064] When the electric actuator 612 pulls the control bar 610 to move, the protrusion 613 enters the strip groove 614. At this time, the spring 607 drives the toothed plate 605 to mesh tightly with the gear 608. Figure 10 As shown in the figure; when the electric push rod 612 pushes the control bar 610 to move, the protrusion 613 disengages from the strip groove 614 and abuts against the control bar 610, the toothed plate 605 and the gear 608 are disengaged, allowing the rotating arm 6 to swing within a certain range, at which time the second spring 607 is in a compressed state.

[0065] See Figures 6 to 9 As shown, a positioning shaft 620 is provided at the bottom of the vertical support 43, and a support rod 621 is rotatably mounted on the positioning shaft 620. The other end of the support rod 621 is placed inside the rotating arm 6 and located in the lower region of its rotation center. Sliding rods 622 are provided on both sides of the upper end of the support rod 621, and sliding grooves 623 are provided on both sides of the rotating arm 6 for the sliding rods 622 to slide.

[0066] When the rotating arm 6 rotates along the top of the vertical bracket 43, the sliding rod 622 at the upper end of the support rod 621 slides along the sliding groove 623 of the rotating arm 6, while the lower end of the support rod 621 rotates along the axis of the positioning shaft 620, ensuring that the rotating arm 6 always remains balanced.

[0067] A U-shaped frame 624 is fitted onto the vertical bracket 43. The U-shaped frame 624 is fastened to the vertical bracket 43 on both sides by bolts. A circular hole is opened on the part of the side wall of the U-shaped frame 624 that extends out of the vertical bracket 43. A limit pin 625 is inserted into the circular hole. A strip hole 626 is opened in the bottom area of ​​the support rod 621 for the limit pin 625 to pass through.

[0068] When the support rod 621 rotates to a certain position, the bolt on the side wall of the "U" frame 624 is tightened, so that the "U" frame 624 can move up and down on the vertical support 43, the position of the limiting pin 625 is adjusted to ensure that the limiting pin 625 can be inserted into the strip-shaped hole 626, and then the bolt is tightened to fix the "U" frame 624 on the vertical support 43. Through the precise cooperation of the limiting pin 625 and the strip-shaped hole 626, the position of the support rod 621 is locked, and the rotation angle of the rotating arm 6 is locked, thereby ensuring that the problem of accidental swinging of the rotating arm 6 during detection is avoided, as shown in the state of Figure 6 .

[0069] When the detection is completed, the rotating arm 6 is rotated to reset to the vertical state, at this time the lower section of the rotating arm 6 is completely inserted into the vertical support 43, at this time the limiting pin 625 is inserted into the round hole to limit the rotation of the rotating arm 6, and ensure that the rotating arm 6 remains stable in the non-working state, preventing accidental start-up from causing damage to the equipment, as shown in the state of Figure 9 .

[0070] Further, in order to improve the control of the rotating arm 6 by the staff, a pull rope (not shown in the figure) is connected to the lower end of the rotating arm 6, and the staff can manually adjust the swinging amplitude of the rotating arm 6 by holding the pull rope, ensuring that the verticality of the detector 7 can still be accurately controlled in complex environments, improving the operation flexibility and detection accuracy.

[0071] Example Three

[0072] Referring to Figure 4 and Figure 5 , on the basis of example one, in order to ensure that the two abutting pieces 509 reach the maximum unfolding angle, a limiting piece is arranged on the threaded rod 504, the limiting piece includes a limiting block 521 which is slidably sleeved on the threaded rod 504 and a limiting hand wheel 522 which is threadedly connected to the threaded rod 504, and the limiting hand wheel 522 is rotationally connected with the limiting block 521, the limiting block 521 is symmetrically provided with an abutting rod 523, the front end of the abutting rod 523 is configured as a T-shaped structure and is rotationally sleeved with a limiting sleeve 524, after the rollers 511 of the two abutting pieces 509 contact the side wall of the driving box, with the continuous movement of the positioning block 505, the two abutting pieces 509 begin to rotate and unfold, until the abutting pieces 509 rotate to contact the limiting sleeve 524, the abutting rod 523 is limited by the limiting block 521, so the abutting pieces 509 cannot continue to unfold, thereby ensuring that the unfolding angle reaches the preset maximum value, when the unfolding angle of the abutting pieces 509 reaches the maximum, the accurate radial alignment of the transverse rod 502 with the driving box can be effectively guaranteed, avoiding the problem that the transverse rod 502 cannot be radially aligned with the driving box due to the inconsistent unfolding angles of the two abutting pieces 509.

[0073] At the same time, the position of the limiting block 521 on the threaded rod 504 can be fine-tuned by rotating the limiting hand wheel 522, and the abutting rod 523 and the limiting sleeve 524 move accordingly, thereby controlling the angle of the abutting piece 509 to adapt to different specifications of the drive box and ensure that the transverse rod 502 is radially aligned with the drive box.

[0074] The bottom of the limiting block 521 is connected to a limiting plate 525, which is slidably sleeved on the guide rod 508 to ensure that the limiting block 521 moves smoothly along the guide rod 508 when the limiting hand wheel 522 is rotated, thereby avoiding deviation.

[0075] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view.

[0076] In addition, it should be understood that although the present specification is described in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A shield tunneling machine drive box body detection device, comprising a receiving platform (1), characterized in that, The receiving platform (1) is provided with a ring track (2) on the outside. The ring track (2) is composed of multiple detachable arc segments. Multiple slide rails (4) are provided at equal intervals on the outside of the receiving platform (1). A slide seat (41) is slidably provided on the slide rail (4). An installation plate (42) is rotatably installed on the slide seat (41). One of the arc segments is detachably installed on the installation plate (42). A vertical support (43) is provided on the outside of the receiving platform (1) and at the corresponding slide rail (4). An electric base (44) that slides on the circular track (2) is installed at the bottom of the vertical support (43). A positioning component (5) is installed on the vertical support (43). The relative position of the arc segment connected to the slide (41) is adjusted by the positioning component (5) to achieve the coaxiality of the arc segment and the drive box. A rotating arm (6) is rotatably mounted on the top of the vertical bracket (43). A connecting block (601) is rotatably provided at the front end of the rotating arm (6). After the rotating arm (6) rotates to the point where multiple connecting blocks (601) are connected, the vertical coaxial line formed coincides with the axis of the drive box, thus realizing the coaxial coincidence of the vertical coaxial line, the axis of the circular track (2) and the axis of the drive box. Multiple detectors (7) are installed on the rotating arm (6); The positioning component (5) includes a positioning frame (501) bolted to a vertical bracket (43). A horizontal rod (502) is provided on the side of the positioning frame (501) facing the receiving platform (1). A diagonal brace (503) is provided between the horizontal rod (502) and the lower end of the positioning frame (501). A threaded rod (504) is slidably passed through one end of the horizontal rod (502) away from the positioning frame (501). A positioning block (505) is connected to the other end of the threaded rod (504). An adjusting handwheel (506) that is threadedly connected to the threaded rod (504) is rotatably installed on one end of the horizontal rod (502).

2. The shield tunneling machine drive box detection device according to claim 1, characterized in that: The positioning block (505) has symmetrically rotating abutment (509) on its side wall. The two abutment (509) are in a "V" shape with their openings facing the drive box, and a spring (510) is connected between the two abutment (509). The front end of the abutment (509) is provided with a roller (511) that makes rolling contact with the side wall of the drive box.

3. The shield tunneling machine drive box detection device according to claim 1, characterized in that: The bottom of the positioning block (505) is provided with a horizontal guide rod (508) via a connecting plate (507), and the other end of the guide rod (508) is slidably connected to a diagonal brace (503).

4. The shield machine drive box detection device according to claim 3, characterized in that: The threaded rod (504) is provided with a limiting component, which includes a limiting block (521) slidably sleeved on the threaded rod (504) and a limiting handwheel (522) threadedly connected to the threaded rod (504). The limiting handwheel (522) is rotatably connected to the limiting block (521). The limiting block (521) is symmetrically provided with abutting rods (523). The front end of the abutting rod (523) is constructed as a T-shaped structure and is rotatably sleeved with a limiting sleeve (524).

5. The shield tunneling machine drive box detection device according to claim 4, characterized in that: A rotating shaft (602) is rotatably mounted on the upper part of the rotating arm (6) at the position corresponding to the detector (7). A mounting base (603) is fitted on the rotating shaft (602), and a telescopic rod (604) is mounted on the mounting base (603). The detector (7) is mounted on the telescopic end of the telescopic rod (604).

6. The shield tunneling machine drive box detection device according to claim 4, characterized in that: The bottom of the limiting block (521) is connected to the limiting plate (525), and the limiting plate (525) is slidably sleeved on the guide rod (508).

7. The shield tunneling machine drive box detection device according to claim 1, characterized in that: The mounting plate (42) is threaded with a positioning bolt (512), which is screwed on to act on the upper surface of the slide (41).

8. The shield tunneling machine drive box detection device according to claim 1, characterized in that: The bottom of the vertical support (43) is provided with a positioning shaft (620), and a support rod (621) is rotatably provided on the positioning shaft (620). The other end of the support rod (621) is placed inside the rotating arm (6) and located in the lower part of its rotation center. Sliding rods (622) are provided on both sides of the upper end of the support rod (621), and sliding grooves (623) are provided on both sides of the rotating arm (6) for the sliding rods (622) to slide.

9. The shield tunneling machine drive box detection device according to claim 8, characterized in that: A U-shaped frame (624) is fitted on the vertical bracket (43). The U-shaped frame (624) is fastened to the vertical bracket (43) on both sides by bolts. The part of the side wall of the U-shaped frame (624) extending out of the vertical bracket (43) has a round hole. A limit pin (625) is inserted into the round hole. A strip hole (626) is opened in the bottom area of ​​the support rod (621) for the limit pin (625) to pass through.

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