A segment support frame installation mechanism for full-face tunnel boring machines

Abstract

A segment support frame installation mechanism used in a full-section tunnel boring machine belongs to the technical field of full-section tunnel boring. The present invention is characterized in that it includes a main frame gate ring, a transfer device is connected to the main frame gate ring, a grabbing and releasing device is movably connected to the transfer device, mounting devices are provided on both sides of the transfer device on the main frame gate ring, and both mounting devices can move circumferentially along the main frame gate ring, a plurality of retractable main support boots are symmetrically provided on the main frame gate ring, a plurality of retractable auxiliary support devices are also symmetrically provided on the main frame gate ring, and one end of a translation cylinder is connected to the main frame gate ring. The present invention can realize the transfer, grabbing, and assembly of segment support frames to achieve stability and roundness of the formed ring segments, and maintain the stability and standardization of the ring segments.

Description

Technical Field

[0001] The present invention belongs to the technical field of full-section tunnel boring, and in particular relates to a segment support frame installation mechanism applied to a full-section tunnel boring machine. Background Art

[0002] The shield method boasts high levels of mechanization, automation, and safety, and its construction process has the advantage of minimal impact on surface buildings, the environment, and underground pipelines. Consequently, it has been widely used in the rapidly developing urban rail transit sector. In some large-diameter tunnel construction, construction teams will lay invert blocks directly beneath the pre-laid segments during the tunneling process. These invert blocks are cast from cement and steel, and contain pre-reserved pipeline and drainage passages. The tunnel can be laid in one go, with segments and invert blocks laid alongside the tunnel boring machine (TBM). The TBM can then travel on the invert blocks. Once the tunnel is stabilized, it can be directly put into use without the need for re-laying track.

[0003] During construction, tunnel boring machines (TBMs) often face challenges such as large excavation diameters, shallow buried depths, complex rock formations, and untimely backfilling. These conditions can lead to insufficient roundness, poor stability, and susceptibility to damage in the laid segments. To overcome these risks and ensure the stability and roundness of newly laid segments, as well as the interconnectedness of the invert blocks beneath the segments and smooth operation of the rear trolley, construction teams install several sections of interlocking H-shaped steel (i.e., segment support frames) along the inner walls of the segments. These frames not only enhance the stability and roundness of the assembled segments, minimizing environmental impact, but also provide some reinforcement for the invert blocks. Manual transport and assembly of the segment support frames results in low efficiency and poor safety. Therefore, it is necessary to design a highly automated mechanism for transporting and assembling the ring segment support frames on the full-face TBM, improving tunnel construction quality and efficiency while fully aligning with the safety principles of modern green construction. Summary of the Invention

[0004] The present invention is aimed at the above-mentioned problems, makes up for the shortcomings of the existing technology, and provides a pipe segment support frame installation mechanism for use in full-section tunnel boring machines; the present invention can realize the transportation, grasping, and assembly of pipe segment support frames to stabilize and round the formed ring segments, and maintain the stability and standardization of the ring segments.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions.

[0006] The present invention provides a segment support frame installation mechanism for a full-section tunnel boring machine, which is characterized in that it includes a main frame gate ring, a transfer device is connected to the main frame gate ring, a grasping and releasing device is movably connected to the transfer device, and installation devices are provided on both sides of the transfer device on the main frame gate ring, and the installation devices can both move circumferentially along the main frame gate ring, a plurality of retractable main support boots are symmetrically provided on the main frame gate ring, a plurality of retractable auxiliary support devices are also symmetrically provided on the main frame gate ring, and one end of a translation cylinder is connected to the main frame gate ring.

[0007] Furthermore, the transfer device includes: a transfer frame, an axial transfer beam, an axial transfer rack, an axial transfer gear, a transfer frame motor, a curved transfer beam, and a curved beam rack. The transfer frame is fixed on the main frame gate ring. The transfer frame is connected to the axial transfer beam on one side along the axial direction of the main frame gate ring. The curved transfer beam can be slidably installed on the axial operating beam. The axial transfer rack is fixed below the axial transfer beam. The transfer frame motor is fixed on the curved transfer beam. The output end of the transfer frame motor is connected to the axial transfer gear. The axial transfer gear is engaged with the axial transfer rack. The curved beam rack is arranged on one side of the curved transfer beam. The grasping and releasing device is connected to the curved beam rack and can move along the surface of the curved transfer beam.

[0008] Furthermore, the grasping and releasing device includes: a transfer trolley, a trolley motor, a trolley gear, a telescopic mechanism and a clamping mechanism. The transfer trolley is arranged outside the arc-shaped transfer beam. The trolley motor is fixed on the transfer trolley and the output end of the trolley motor is connected to the trolley gear. The trolley gear is engaged with the arc-shaped beam rack. The trolley motor enables the transfer trolley to move along the arc-shaped transfer beam. The telescopic mechanism is connected to the transfer trolley, and the clamping mechanism is connected to the telescopic mechanism.

[0009] Furthermore, the telescopic mechanism includes: a folding telescopic arm, a first telescopic cylinder, a second telescopic cylinder and a third telescopic cylinder. The folding telescopic arm is hinged on the transfer trolley. The first telescopic cylinder, the second telescopic cylinder and the third telescopic cylinder respectively connected to the folding telescopic arm and the transfer trolley cooperate with each other to achieve long-distance radial displacement of the folding telescopic arm along the arc-shaped transfer beam. The clamping mechanism is hinged on the folding telescopic arm.

[0010] Furthermore, the mounting device includes: a mounting frame, a mounting hydraulic motor, a radial feed slide, a radial feed cylinder, an axial feed slide, an axial feed cylinder, a clamping mechanism and a braking device. The mounting frame can be slidably arranged on the outside of the main frame door ring. The mounting hydraulic motor is fixed on the mounting frame. The mounting hydraulic motor is engaged with the mounting rack set on the main frame door ring through the mounting gear set at the end to realize the displacement of the mounting device along the main frame door ring. The radial feed slide and the axial feed slide are respectively arranged along the radial and axial directions of the main frame door ring. On the mounting frame, the clamping mechanism simultaneously slides with the radial feed slide and the axial feed slide, the radial feed cylinder and the axial feed cylinder are correspondingly arranged on the mounting frame and are both connected to the clamping mechanism, the radial feed cylinder is used to control the clamping mechanism to perform radial displacement along the radial feed slide, and the axial feed cylinder is used to control the clamping mechanism to perform axial displacement along the axial feed slide, the brake device is provided on the mounting frame and corresponds to the main frame door ring to brake the displacement of the mounting device on the main frame door ring.

[0011] Furthermore, the clamping mechanism controls the displacement of the cylinder pad connected to the end of each clamping cylinder by extending and retracting a plurality of uniformly distributed clamping cylinders inside, thereby achieving the clamping function.

[0012] Furthermore, the main support shoe includes: a folding support arm, a support shoe cylinder and a support shoe head. One end of the folding support arm is fixed to the door ring of the main frame, and the other end is connected to the support shoe head. Both ends of the support shoe cylinder are connected to the folding support arm to control the rotation of the folding support arm.

[0013] Furthermore, the auxiliary support device includes: an auxiliary folding support frame, a first angle steering cylinder, a second angle steering cylinder, and a fixed support. One end of the auxiliary support frame is hinged to the door ring of the main frame, and the other end of the auxiliary folding support frame is hinged to the fixed support. The first angle steering cylinder and the second angle steering cylinder are both hingedly connected to the auxiliary folding support frame. The piston rods of the first angle steering cylinder and the second angle steering cylinder are extended and retracted, and the auxiliary folding support frame is extended and retracted by utilizing the hinge principle.

[0014] Furthermore, a plurality of running wheel devices are provided in the middle of the main frame door ring, and the running wheels on the running wheel devices can rotate along the axial direction of the main frame door ring.

[0015] Furthermore, the transfer device and the main frame door ring are simultaneously connected with a translation drag chain, the transfer device and the grasping and releasing device are simultaneously connected with a rotation drag chain, and the installation device and the main frame door ring are simultaneously connected with a rotation drag chain.

[0016] Beneficial effects of the present invention.

[0017] The present invention is installed on a rear matching trolley to automatically transfer, grab and assemble the segment support frame, which can respectively realize the following working steps: main support boots to stabilize the formed segments, grab the segment support frame, transfer the segment support frame, place the segment support frame, assemble the segment support frame, auxiliary support to assist in assembly, etc. until a complete annular support frame is formed, which can achieve stable fixation and rounding of the formed segments, maintain the stability and standardization of the annular segments, and the working process of the whole device is independent of the excavation and assembly of the segments of the tunnel boring machine and does not affect each other, with diverse functions, simple and efficient automation, and safe and reliable improvement of construction quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a main structural schematic diagram of the present invention.

[0021] Figure 3 This is a front view of the present invention installed behind the shield trolley.

[0022] Figure 4 The present invention Figure 3 H-direction view.

[0023] Figure 5 Schematic diagram of the main gripper of the present invention in a retracted state.

[0024] Figure 6 Schematic diagram of the main gripper shoe of the present invention in an extended state.

[0025] Figure 7 It is a front view of the transfer device of the present invention.

[0026] Figure 8 The present invention Figure 7 C-direction view.

[0027] Figure 9 The present invention Figure 8 AA view.

[0028] Figure 10 The present invention Figure 8 Schematic diagram of the BB being retracted toward the catch and release device.

[0029] Figure 11 The present invention Figure 8 Schematic diagram of the BB extending toward the pick-and-place device.

[0030] Figure 12 The present invention Figure 7 Schematic diagram of the clamping state of the DD clamping mechanism.

[0031] Figure 13 The present invention Figure 7 Schematic diagram of the DD clamping mechanism in the relaxed state.

[0032] Figure 14 It is a structural schematic diagram of the installation device of the present invention.

[0033] Figure 15 The present invention Figure 14 EE view.

[0034] Figure 16 It is a schematic diagram of the auxiliary support device of the present invention in a retracted state.

[0035] Figure 17 It is a schematic diagram of the auxiliary support device of the present invention in an extended state.

[0036] Markings in the figure: 1 is the main frame door ring, 2 is the transfer device, 3 is the grasping and releasing device, 4 is the installation device, 5 is the main support shoe, 6 is the auxiliary support device, 7 is the translation cylinder, 8 is the walking wheel device, 9 is the translation drag chain, 10 is the rotating drag chain, 11 is the rotating drag chain, 12 is the forming pipe segment, 13 is the inverted arch block, 14 is the steel support frame, 15 is the shield trolley, 16 is the segmented support frame, 201 is the transfer frame, 202 is the axial transfer beam, 203 is the axial transfer rack, 204 is the axial transfer gear, 205 is the transfer frame motor, 206 is the arc transfer beam, 207 is the arc beam rack, 301 is the transfer trolley, 302 is the trolley motor, 303 is the trolley gear, 304 is Telescopic mechanism, 305 is the clamping mechanism, 30401 is the folding telescopic arm, 30402 is the first telescopic cylinder, 30403 is the second telescopic cylinder, 30404 is the third telescopic cylinder, 30501 is the clamping cylinder, 30502 is the cylinder pad, 401 is the mounting frame, 402 is the mounting hydraulic motor, 403 is the radial feed slide, 404 is the radial feed cylinder, 405 is the axial feed slide, 406 is the axial feed cylinder, 407 is the braking device, 501 is the folding tightening arm, 502 is the support shoe cylinder, 503 is the support shoe head, 601 is the auxiliary folding support frame, 602 is the first angle steering cylinder, 603 is the second angle steering cylinder, and 604 is the fixed support. DETAILED DESCRIPTION

[0037] Combine Figure 1 and Figure 2 As shown, this embodiment provides a segment support frame installation mechanism for a full-face tunnel boring machine, such as Figure 3 and Figure 4 The shield trolley 15 is shown as being mounted on the periphery of the tunnel. The tunnel is composed of formed segments 12 forming the outer support, an inverted arch block 13 at the bottom, and a steel support frame 14 formed in an annular shape around the inner ring of the segments. The inverted arch block 13 has pre-designed pipelines and liquid passages inside, which is an advanced tunnel design concept.

[0038] like Figures 1 to 4 As shown, a segment support frame installation mechanism used for a full-section tunnel boring machine includes a main frame gate ring 1, one end of a translation cylinder 7 is connected to the main frame gate ring 1, and the other end of the translation cylinder 7 is fixed to the shield trolley 15. The relative displacement of the main frame gate ring 1 and the shield trolley 15 is achieved by the extension and contraction of the translation cylinder 7. A plurality of walking wheel devices 8 are also provided in the middle. The walking wheels on the walking wheel devices 8 can rotate along the axial direction of the main frame gate ring 1. The design of the walking wheel device 8 can make the main frame gate ring 1 move more smoothly relative to the shield trolley 15, and at the same time can compensate for the width and height difference of the main frame gate ring 1 after being mounted on the shield trolley 15, to ensure that the main frame gate ring 1 can be better mounted on the outside of the shield trolley 15.

[0039] A plurality of retractable main grippers 5 are symmetrically arranged on the main frame door ring 1. The main grippers 5 include: a folding support arm 501, a gripper cylinder 502, and a gripper head 503. One end of the folding support arm 501 is fixed to the main frame door ring 1, and the other end is connected to the gripper head 503. Both ends of the gripper cylinder 502 are connected to the folding support arm 501 to control the rotation of the folding support arm 501. Before construction, the translation cylinder 7 is set to free mode, and the main grippers 5 first stabilize the formed pipe segment 12. Figure 5 and Figure 6 The two states of retraction and extension of the main support shoe 5 are shown respectively. The main support shoe 5 drives the rotation angle of the tightening arm through the extension of the support shoe cylinder 502, and finally the support shoe head 503 is extended to tighten the formed pipe segment 12, so that the entire mechanism is stable and the subsequent work is ensured to be carried out smoothly. The position of the entire device is fixed relative to the formed pipe segment 12, and the subsequent device is relatively independent of the assembly work of the segmented support frame 16 and the travel of the tunneling machine traction trolley, and does not affect each other.

[0040] The main frame door ring 1 is connected to a transfer device 2, and a grabbing and placing device 3 is movably connected to the transfer device 2. Figures 7 to 9 As shown, the transfer device 2 includes: a transfer frame 201, an axial transfer beam 202, an axial transfer rack 203, an axial transfer gear 204, a transfer frame motor 205, an arcuate transfer beam 206, and an arcuate beam rack 207. A translational drag chain 9 is connected to both the transfer device 2 and the main frame door ring 1. The electro-hydraulic pipelines required by the transfer device 2 are installed inside the translational drag chain 9. The translational drag chain 9 serves to receive the electro-hydraulic pipeline cables and ensures their rigidity.

[0041] The transfer frame 201 is fixed on the main frame gate ring 1. The transfer frame 201 is connected to the axial transfer beam 202 on one side along the axial direction of the main frame gate ring 1. The arc transfer beam 206 is slidably installed on the axial operating beam 202. The axial transfer rack 203 is fixed below the axial transfer beam 202. The transfer frame motor 205 is fixed on the arc transfer beam 206. The output end of the transfer frame motor 205 is connected to the axial transfer gear 204. The axial transfer gear 204 is engaged with the axial transfer rack 203. The arc transfer beam 206 is controlled by the transfer frame motor 205 to move axially. The arc beam rack 207 is set on one side of the arc transfer beam 206. The grabbing and releasing device 3 is connected to the arc beam rack 207 and can move along the surface of the arc transfer beam 206. At the same time, the grabbing and releasing device 3 can also move axially with the arc transfer beam 206 (that is, move along the tunnel direction).

[0042] like Figure 7 and Figure 8 As shown, the grabbing and placing device 3 includes: a transfer trolley 301 , a trolley motor 302 , a trolley gear 303 , a telescopic mechanism 304 and a clamping mechanism 305 .

[0043] The transfer trolley 301 is arranged outside the curved transfer beam 206, the trolley motor 302 is fixed on the transfer trolley 301 and the output end of the trolley motor 302 is connected to the trolley gear 303, the trolley gear 303 is engaged with the curved beam rack 207, and the trolley motor 302 enables the transfer trolley 301 to move along the curved transfer beam 206, and is used to transport the segmented support frame 16 along the curved transfer beam 206 to the side of the arch block 13.

[0044] The telescopic mechanism 304 is connected to the transfer trolley 301. The telescopic mechanism 304 includes: a folding telescopic arm 30401, a first telescopic oil cylinder 30402, a second telescopic oil cylinder 30403 and a third telescopic oil cylinder 30404. The folding telescopic arm 30401 is hinged to the transfer trolley 301. Through the mutual cooperation of the first telescopic oil cylinder 30402, the second telescopic oil cylinder 30403 and the third telescopic oil cylinder 30404 connected to the folding telescopic arm 30401 and the transfer trolley 301 respectively, the folding telescopic arm 30401 can achieve long-distance radial displacement along the arc-shaped transfer beam 206. Figure 10 and Figure 11 Two working states of the pick-and-place device 3, namely, retracted and extended, are shown respectively.

[0045] The clamping mechanism 305 is hinged on the folding telescopic arm 30401. The clamping mechanism 305 controls the displacement of the cylinder pad 30502 connected to the end of each clamping cylinder 30501 by extending and retracting multiple uniformly distributed clamping cylinders 30501 inside, thereby achieving the clamping function and completely clamping the steel wing plate of the segmented support frame 16. Figure 12 and Figure 13 The two working states of the clamping mechanism 305 on the segmented support frame 16, namely, clamping and releasing, are shown respectively.

[0046] The transfer device 2 and the grab and release device 3 are both connected to a rotating drag chain 10. The hydraulic and electrical pipelines used by the grab and release device 3 are installed inside the rotating drag chain 10. The rotating drag chain 10 also serves to receive the electro-hydraulic pipeline cables to ensure the rigidity of the electro-hydraulic pipeline cables.

[0047] Installation devices 4 are provided on both sides of the transfer device 2 on the main frame gate ring 1. The installation devices 4 can move circumferentially along the main frame gate ring 1. After the segmented support frame 16 is transferred to both sides by the transfer device 2 and temporarily placed on the side of the arch block 13, the segmented support frame 16 is assembled using the installation device 4.

[0048] like Figure 14 and Figure 15 As shown, the mounting device 4 includes: a mounting frame 401, a mounting hydraulic motor 402, a radial feed slide 403, a radial feed cylinder 404, an axial feed slide 405, an axial feed cylinder 406, a clamping mechanism 305 and a braking device 407.

[0049] The mounting frame 401 is slidably arranged outside the main frame door ring 1, and the mounting hydraulic motor 402 is fixed on the mounting frame 401. The mounting hydraulic motor 402 is engaged with the mounting rack provided on the main frame door ring 1 through the mounting gear provided at the end, so as to realize the displacement of the mounting device 4 along the main frame door ring 1. The radial feed slide 403 and the axial feed slide 405 are respectively arranged on the mounting frame 401 along the radial direction and axial direction of the main frame door ring 1. The clamping mechanism 305 is connected with the above-mentioned grasping and placing device 3 Like the clamping mechanism 305, the clamping mechanism 305 slides with the radial feed slide 403 and the axial feed slide 405 at the same time. The radial feed cylinder 404 and the axial feed cylinder 406 are correspondingly arranged on the mounting frame 401 and are both connected to the clamping mechanism 305. The radial feed cylinder 404 controls the clamping mechanism 305 to perform radial displacement along the radial feed slide 403, and the axial feed cylinder 406 controls the clamping mechanism 305 to perform axial displacement along the axial feed slide 405.

[0050] The radial feed cylinder 404 is extended along the radial feed slide 403 to move the clamping mechanism 305 radially for a certain distance. The internal axial feed cylinder 406 is extended along the axial feed slide 405 to realize independent axial movement of the clamping mechanism 305. Then, the clamping cylinder 30501 of the clamping mechanism 305 is extended and retracted, and the cylinder pad 30502 completely clamps the steel wing plate of the segmented support frame 16, realizing the extension, grabbing and placement actions of the installation mechanism.

[0051] Braking device 407 is mounted on mounting frame 401 and corresponds to main frame door ring 1 to brake the displacement of mounting device 4 on main frame door ring 1. When mounting frame 401 moves in a circular motion along main frame door ring 1, to ensure the stability of mounting device 4 during installation at a certain angle, the brake is applied by utilizing the frictional force generated by the contact of the nylon wear-resistant block held in tension by the internal hydraulic cylinder of braking device 407 with the inner wall of main frame door ring 1.

[0052] The installation device 4 and the main frame door ring 1 are simultaneously connected with a rotating drag chain 11. The hydraulic and electrical pipelines used by the installation device 4 are installed inside the rotating drag chain 11. The rotating drag chain 11 also plays the role of receiving the electro-hydraulic pipeline cables to ensure the rigidity of the electro-hydraulic pipeline cables.

[0053] A plurality of retractable auxiliary support devices 6 are also symmetrically arranged on the main frame door ring 1. The auxiliary support device 6 includes: an auxiliary folding support frame 601, a first angle steering cylinder 602, a second angle steering cylinder 603, and a fixed support 604.

[0054] One end of the auxiliary support frame is hinged to the main frame door ring 1, and the other end of the auxiliary folding support frame 601 is hinged to the fixed support 604. The first angle steering cylinder 602 and the second angle steering cylinder 603 are both hingedly connected to the auxiliary folding support frame 601. The piston rods of the first angle steering cylinder 602 and the second angle steering cylinder 603 are extended and retracted, and the auxiliary folding support frame 601 is extended and retracted by using the hinge principle. Figure 16 and Figure 17 The two working states of the auxiliary support frame, retracted and extended, are shown respectively.

[0055] By extending the auxiliary support frame, the fixed support 604 can provide temporary auxiliary support and compression to the assembled steel support frame 14, thereby providing temporary auxiliary support to the assembled segmented support frame 16, ensuring the safety of the assembly of each segmented support frame 16, and also ensuring the overall roundness and stability.

[0056] After completing the above series of work, the translation cylinder 7 is filled with oil to pull the entire device back to its initial position, and the cycle continues.

[0057] The following working steps can be completed by using the present invention.

[0058] 1. The main support shoes 5 support the formed pipe segment 12: the translation cylinder 7 is in the free extension mode, and the main support shoes 5 on the left and right sides of the main frame door ring 1 are extended by the support shoe cylinder 502 to extend the folding support arm 501, and the support shoe head 503 is used to support the inner wall of the assembled formed pipe segment 12 to ensure the stable operation of the whole device and the position relative to the formed pipe segment 12 is fixed.

[0059] 2. Grabbing the Segmented Support Frame 16: The curved operating beam carrying the grabbing and placing device 3 travels on the axial transfer beam 202. When it reaches the location where the segmented support frame 16 is placed, the folding telescopic arm 30401 of the grabbing and placing device 3 is extended. After extension, the hydraulic cylinder pad 30502 of the clamping mechanism 305 clamps the segmented support frame 16.

[0060] 3. Transfer segmented support frame 16: retract the folding telescopic arm 30401 to avoid interference with the arch block 13, and then return the curved transfer beam 206 carrying the grasping and placing device 3 along the axial operating beam to the assembly position. After returning, the grasping and placing device 3 uses the trolley motor 302 and the trolley gear 303 on the transfer trolley 301 to cooperate with the curved beam rack 207 on the curved transfer beam 206 to realize the grasping and placing device 3 carrying the segmented support frame 16 to operate along the arc surface of the curved transfer beam 206.

[0061] 4. Placement of the segmented support frame 16: When the grasping and placing device 3 has reached the extreme positions on both sides of the arc-shaped transfer beam 206, the construction personnel can control the grasping and placing device 3 again, extend the folding telescopic arm 30401 of the grasping and placing device 3 to the extreme position, and then lower the cylinder pad 30502 of the clamping mechanism 305 to release the segmented support frame 16, thereby realizing the automated placement of the segmented support frame 16 on the side of the inverted arch block 13. With the support of the inverted arch block 13 and the annular steel support frame 14 on the inner ring of the segment, the segmented support frame 16 is temporarily and safely placed on one side of the tunnel. The construction personnel fix the inverted arch block 13 to the first segment support frame. This position is the next initial grasping position. Subsequently, the remaining segmented support frames 16 in the same ring are placed one by one along the end of the first segmented support frame 16 and then along the arc of the tunnel inner wall.

[0062] 5. Assembling the segmented support frames 16: After the segmented support frames 16 are placed, the installation process begins. The clamping mechanism 305 of the installation device 4 extends the axial feed cylinder 406 and the radial feed cylinder 404, and performs radial and axial movement along the axial feed slide 405 and the radial feed slide 403 to facilitate grasping and placement. The installation device 4 uses the clamping cylinder 30501 of the clamping mechanism 305 to simultaneously extend, and clamps and grasps the corresponding segmented support frame 16 to be installed after being transferred and placed through the cylinder pad 30502. The rotation of the installation hydraulic motor 402 realizes the arc movement of the installation rack along the inner wall of the main frame door ring 1, and the segmented support frame is installed at a suitable angle. Then the segmented support frame is released to complete the assembly.

[0063] 6. Auxiliary Support Assists Assembly: Auxiliary support devices 6 provide temporary auxiliary support for the assembled segmented guard frames. The operator can independently control the movement of each auxiliary support device 6, achieving single-action characteristics. By controlling the extension and retraction of the first angle steering cylinder 602 and the second angle steering cylinder 603, the auxiliary support frames are extended and the fixed supports 604 are used to press the assembled segmented guard frames 16 together, maintaining the installed position of the assembled segmented guard frames 16. After the auxiliary support devices 6 are tightened, the operator can then reinforce the segmented guard frames 16, providing a safety guarantee for the operator.

[0064] After completing the above series of work steps, the translation cylinder 7 is filled with oil to pull the entire device back to its initial position, thereby completing the installation of the entire segment support frame in this cycle.

[0065] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the scope of protection of the present invention.

Claims

1. A segment support frame installation mechanism for a full-face tunnel boring machine, characterized in that: The invention comprises a main frame door ring (1), a transfer device (2) is connected to the main frame door ring (1), a gripping device (3) is movably connected to the transfer device (2), mounting devices (4) are provided on both sides of the transfer device (2) on the main frame door ring (1), and the mounting devices (4) can move circumferentially along the main frame door ring (1), a plurality of retractable main support boots (5) are symmetrically provided on the main frame door ring (1), a plurality of retractable auxiliary support devices (6) are also symmetrically provided on the main frame door ring (1), and one end of a translation oil cylinder (7) is connected to the main frame door ring (1); The transfer device (2) comprises: a transfer frame (201), an axial transfer beam (202), an axial transfer rack (203), an axial transfer gear (204), a transfer frame motor (205), an arc-shaped transfer beam (206), and an arc-shaped beam rack (207); the transfer frame (201) is fixed on the main frame door ring (1); the transfer frame (201) is connected to the axial transfer beam (202) on one side along the axial direction of the main frame door ring (1); the arc-shaped transfer beam (206) is slidably mounted on the axial transfer beam; The axial transfer rack (203) is fixed below the axial transfer beam (202), the transfer frame motor (205) is fixed on the arc-shaped transfer beam (206), the output end of the transfer frame motor (205) is connected to the axial transfer gear (204), the axial transfer gear (204) is engaged with the axial transfer rack (203), the arc-shaped beam rack (207) is arranged on one side of the arc-shaped transfer beam (206), and the grasping and placing device (3) is connected to the arc-shaped beam rack (207) and can move along the surface of the arc-shaped transfer beam (206).

2. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 1, characterized in that: The grasping and placing device (3) includes: a transfer trolley (301), a trolley motor (302), a trolley gear (303), a telescopic mechanism (304) and a clamping mechanism (305). The transfer trolley (301) is arranged outside the arc-shaped transfer beam (206). The trolley motor (302) is fixed on the transfer trolley (301) and the output end of the trolley motor (302) is connected to the trolley gear (303). The trolley gear (303) is engaged with the arc-shaped beam rack (207). The transfer trolley (301) can be moved along the arc-shaped transfer beam (206) through the trolley motor (302). The telescopic mechanism (304) is connected to the transfer trolley (301), and the clamping mechanism (305) is connected to the telescopic mechanism (304).

3. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 2, characterized in that: The telescopic mechanism (304) comprises: a folding telescopic arm (30401), a first telescopic oil cylinder (30402), a second telescopic oil cylinder (30403) and a third telescopic oil cylinder (30404); the folding telescopic arm (30401) is hinged on the transfer trolley (301); and the folding telescopic arm (30401) is displaced along a long distance in the radial direction of the arc-shaped transfer beam (206) by the mutual cooperation of the first telescopic oil cylinder (30402), the second telescopic oil cylinder (30403) and the third telescopic oil cylinder (30404) which are respectively connected to the folding telescopic arm (30401) and the transfer trolley (301); and the clamping mechanism (305) is hinged on the folding telescopic arm (30401).

4. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 1, characterized in that: The mounting device (4) comprises: a mounting frame (401), a mounting hydraulic motor (402), a radial feed slideway (403), a radial feed cylinder (404), an axial feed slideway (405), an axial feed cylinder (406), a clamping mechanism (305) and a brake device (407); the mounting frame (401) is slidably arranged outside the main frame door ring (1); the mounting hydraulic motor (402) is fixed on the mounting frame (401); the mounting hydraulic motor (402) engages with the mounting rack arranged on the main frame door ring (1) through the mounting gear arranged at the end thereof, thereby realizing the displacement of the mounting device (4) along the main frame door ring (1); the radial feed slideway (403) and the axial feed slideway (405) are respectively arranged along the radial direction and axial direction of the main frame door ring (1) on the main frame door ring (1). On the mounting frame (401), the clamping mechanism (305) is slidably matched with the radial feed slideway (403) and the axial feed slideway (405) at the same time. The radial feed oil cylinder (404) and the axial feed oil cylinder (406) are correspondingly arranged on the mounting frame (401) and are both connected to the clamping mechanism (305). The clamping mechanism (305) is controlled by the radial feed oil cylinder (404) to perform radial displacement along the radial feed slideway (403), and the clamping mechanism (305) is controlled by the axial feed oil cylinder (406) to perform axial displacement along the axial feed slideway (405). The brake device (407) is arranged on the mounting frame (401) and corresponds to the main frame door ring (1) to brake the displacement of the mounting device (4) on the main frame door ring (1).

5. A segment support frame installation mechanism for a full-face tunnel boring machine according to any one of claims 2 or 4, characterized in that: The clamping mechanism (305) controls the displacement of the cylinder pad (30502) connected to the end of each clamping cylinder (30501) by extending and retracting a plurality of uniformly distributed clamping cylinders (30501) inside, thereby achieving a clamping function.

6. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 1, characterized in that: The main support shoe (5) comprises: a folding support arm (501), a support shoe cylinder (502) and a support shoe head (503); one end of the folding support arm (501) is fixed to the main frame door ring (1), and the other end is connected to the support shoe head (503); both ends of the support shoe cylinder (502) are connected to the folding support arm (501) to control the rotation of the folding support arm (501).

7. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 1, characterized in that: The auxiliary support device (6) comprises: an auxiliary folding support frame (601), a first angle steering oil cylinder (602), a second angle steering oil cylinder (603), and a fixed support (604); one end of the auxiliary folding support frame is hinged to the main frame door ring (1); the other end of the auxiliary folding support frame (601) is hinged to the fixed support (604); the first angle steering oil cylinder (602) and the second angle steering oil cylinder (603) are both hingedly connected to the auxiliary folding support frame (601); the piston rods of the first angle steering oil cylinder (602) and the second angle steering oil cylinder (603) are extended and retracted, and the auxiliary folding support frame (601) is extended and retracted by utilizing the hinge principle.

8. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 1, characterized in that: A plurality of running wheel devices (8) are further provided in the middle of the main frame door ring (1), and the running wheels on the running wheel devices (8) are capable of rotating along the axial direction of the main frame door ring (1).

9. The segment support frame installation mechanism for a full-face tunnel boring machine according to claim 1, characterized in that: The transfer device (2) and the main frame door ring (1) are simultaneously connected with a translation drag chain (9), the transfer device (2) and the grasping and releasing device (3) are simultaneously connected with a rotation drag chain (10), and the installation device (4) and the main frame door ring (1) are simultaneously connected with a rotation drag chain (11).

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