A shield tunnel segment capping block assembly device
By designing a shield tunnel segment capping block assembly device with detachable clamping and limiting mechanisms, the problem that existing devices cannot adapt to different segment types has been solved, improving the equipment's versatility and assembly accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIANJIANG HEAVY IND CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-26
AI Technical Summary
Existing tunnel segment assembly equipment cannot adapt to different segment types, and the clamps are fixed, resulting in reduced equipment versatility.
A shield tunnel segment capping block assembly device was designed, which includes a detachable clamping mechanism and a limiting mechanism. The clamps can be detached and replaced through the installation mechanism to adapt to segments of different sizes.
The fixtures are detachable and replaceable, adaptable to segments of different sizes, improving the equipment's versatility and assembly accuracy.
Smart Images

Figure CN224282666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of shield tunnel segment assembly equipment, specifically a shield tunnel segment capping block assembly device. Background Technology
[0002] In subway tunnel construction, the shield cutterhead cuts through the soil and advances forward. The excavated soil is transported by a belt conveyor on the shield machine to a battery-powered vehicle behind the trolley and then transported to the surface. Each time the shield machine excavates a ring, the segment assembly machine on the shield machine begins assembling the segments into a ring. Each ring consists of six segments: one arch bottom segment, two standard segments, two adjacent segments, and one capping segment. An assembly device is required during installation. However, existing technologies have the following drawbacks: the same device can only be used for shield tunnels of one diameter; the clamps are fixed and cannot be disassembled or replaced; and they cannot be adapted to clamp different segment types, reducing the equipment's versatility. Therefore, a shield segment capping segment assembly device is proposed to solve these problems. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a shield tunnel segment capping block assembly device, which has the advantage of detachable and replaceable clamps to adapt to segments of different sizes, thus solving the problems mentioned in the background art.
[0005] (II) Technical Solution
[0006] To achieve the purpose of detachable and replaceable clamps to adapt to different sizes of tunnel segments, this utility model provides the following technical solution: a shield tunnel segment capping block assembly device, including a shield machine shell and an assembly assembly component. The assembly assembly component is located inside the shield machine shell. An assembly ring is movably installed inside the shield machine shell. A capping tunnel segment is movably connected to the assembly ring inside the shield machine shell. The assembly assembly component extends from the left side to the right side of the assembly ring. An adjustment component is provided on the right side of the assembly assembly component. An installation mechanism is provided at the bottom of the adjustment component. A clamping mechanism is provided at the bottom of the installation mechanism. A limiting mechanism connected to the clamping mechanism is provided at the top of the installation mechanism.
[0007] The assembly assembly includes two brackets located on the left side of the assembly ring. An electric slide rail is fixedly installed on the right side of the bracket. Electric sliders are slidably installed on opposite sides of the two electric slide rails. A fixed ring is fixedly installed between the outer sides of the two electric sliders. A rotating ring is rotatably connected to the right side of the fixed ring. A gear ring is fixedly installed on the inner wall of the rotating ring. A motor frame is fixedly installed on the inner bottom wall of the fixed ring. A rotary motor is fixedly installed on the inner side of the motor frame. A gear that meshes with the gear ring is fixedly installed on the output shaft of the rotary motor.
[0008] Preferably, the adjusting component includes a fixing block, two fixing blocks are fixedly installed on the right side of the rotating ring, a fixing cylinder is fixedly installed on the right side of the fixing block, a vertical rod extending to the bottom of the fixing cylinder is slidably installed on the top of the fixing cylinder, a top plate is fixedly installed on the top of the vertical rod, an electric push rod is fixedly installed on the top of the fixing block, and the output end of the electric push rod is fixedly connected to the bottom of the top plate.
[0009] Preferably, the mounting mechanism includes a horizontal plate, which is fixedly mounted on the bottom of two vertical rods, and a support rail is fixedly mounted on the bottom of the horizontal plate.
[0010] Preferably, the clamping mechanism includes a mounting block, a mounting block is movably mounted on the outer side of the support rail, U-shaped blocks extending to the inner side of the cross plate are fixedly mounted on both the left and right sides of the mounting block, connecting blocks are fixedly mounted on both the left and right sides of the mounting block, and a clamping plate is fixedly mounted between the bottoms of the two connecting blocks.
[0011] Preferably, the limiting mechanism includes a box body, which is fixedly installed on the top of the horizontal plate. A servo motor is fixedly installed on the inner top wall of the box body. A threaded rod that is rotatably connected to the inner bottom wall of the box body is fixedly installed at the output shaft of the servo motor. A threaded block is threadedly connected to the outer side of the threaded rod. Rectangular plates extending to the outer side of the box body are fixedly installed on both sides of the threaded block. A locking plate that engages with a U-shaped block is fixedly installed at the bottom of the rectangular plate. Right-angled plates extending to the opposite sides of the two U-shaped blocks are slidably installed on both sides of the inner wall of the box body. A right-angled support plate extending to the inner side of the box body is fixedly installed on the top of the right-angled plate. A return spring that is fixedly connected to the outer side of the box body is fixedly installed on the inner wall of the right-angled support plate. A wedge-shaped block located inside the box body is fixedly installed on the top of the right-angled plate. U-shaped plates that are slidably connected to the top of the two wedge-shaped blocks are fixedly installed on both sides of the threaded block. The U-shaped plates are located above the rectangular plate. A limiting block that engages with the U-shaped block is fixedly installed on the side of the right-angled plate closest to the U-shaped block.
[0012] Preferably, the horizontal plate has mounting grooves on both the left and right sides, and the inner walls of the mounting grooves are open on both the front and back sides. One end of the U-shaped block is fitted with the inner wall of the mounting groove.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a shield tunnel segment capping block assembly device, which has the following beneficial effects:
[0015] This shield tunnel segment capping block assembly device is equipped with an installation mechanism, a clamping mechanism, and a limiting mechanism. The clamping mechanism is installed by the installation mechanism and fixed by the limiting mechanism. When it is necessary to disassemble the clamping plate, the servo motor drives the threaded rod to rotate. The threaded block moves the rectangular plate and the clamping plate upward to release the limiting on the top of the U-shaped block. Then, the threaded block moves the U-shaped plate upward to release the fixing on the wedge block. At this time, under the tension of the return spring, the right-angle support plate moves the right-angle plate outward. The right-angle plate moves the limiting block to release its limiting on the side of the U-shaped block. Then, the U-shaped block can be pulled to slide in the mounting groove in the horizontal plate until it is disengaged, separating the mounting block from the support rail. This completes the disassembly of the clamping plate. Then, different sizes of clamping plates can be replaced as needed, realizing the purpose of detachable and replaceable clamping plates to adapt to different sizes of tunnel segments. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the structure of this utility model;
[0017] Figure 2 This is a left-side perspective view of the structure of this utility model;
[0018] Figure 3 This is a partial three-dimensional view of the structure of this utility model;
[0019] Figure 4 This is a partial sectional perspective view of the present invention;
[0020] Figure 5 This is a partial sectional perspective view of the present invention;
[0021] Figure 6 This is a partial three-dimensional view of the structure of this utility model;
[0022] Figure 7 This is a partial sectional perspective view of the present invention;
[0023] Figure 8 This is a partial sectional perspective view of the present invention.
[0024] In the diagram: 1. Shield machine shell, 2. Assembly ring, 3. Top cap segment, 4. Assembly assembly, 41. Support, 42. Electric slide rail, 43. Electric slider, 44. Fixed ring, 45. Rotating ring, 46. Gear ring, 47. Motor frame, 48. Rotary motor, 49. Gear, 5. Adjustment assembly, 51. Fixed block, 52. Fixed cylinder, 53. Vertical rod, 54. Top plate, 55. Electric push rod, 6. Installation mechanism, 61. Horizontal plate, 62. Support rail, 7. Clamping mechanism, 71. Installation block, 72. U-shaped block, 73. Connecting block, 74. Clamping plate, 8. Limiting mechanism, 801. Box body, 802. Servo motor, 803. Threaded rod, 804. Threaded block, 805. Rectangular plate, 806. Clamping plate, 807. Right angle plate, 808. Right angle support plate, 809. Return spring, 810. Wedge block, 811. U-shaped plate, 812. Limiting block. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-8 This utility model provides a technical solution: a shield tunnel segment capping block assembly device, including a shield machine shell 1 and an assembly component 4. The assembly component 4 is located inside the shield machine shell 1. An assembly ring 2 is movably installed inside the shield machine shell 1. A capping segment 3 is provided inside the shield machine shell 1 and is movably connected to the assembly ring 2. The assembly component 4 extends from the left side to the right side of the assembly ring 2. An adjustment component 5 is provided on the right side of the assembly component 4. An installation mechanism 6 is provided at the bottom of the adjustment component 5. A clamping mechanism 7 is provided at the bottom of the installation mechanism 6. A limiting mechanism 8 connected to the clamping mechanism 7 is provided at the top of the installation mechanism 6.
[0027] The assembly component 4 includes two brackets 41 located on the left side of the assembly ring 2. The two brackets 41 are symmetrically distributed front and back. An electric slide rail 42 is fixedly installed on the right side of the brackets 41. An electric slider 43 is slidably installed on the opposite sides of the two electric slide rails 42. A fixing ring 44 is fixedly installed between the outer sides of the two electric sliders 43. A rotating ring 45 is rotatably connected to the right side of the fixing ring 44. A toothed ring 46 is fixedly installed on the inner side wall of the rotating ring 45. A motor frame 47 is fixedly installed on the inner bottom wall of the fixing ring 44. A rotary motor 48 is fixedly installed on the inner side of the motor frame 47. A gear 49 that meshes with the toothed ring 46 is fixedly installed at the output shaft of the rotary motor 48. The electric slide rail 42, electric slider 43 and rotary motor 48 are all electrically connected to an external power source and controlled by an external program.
[0028] The electric slider 43 slides along the electric slide rail 42, causing the fixed ring 44 to move horizontally. The fixed ring 44 transmits the motion to the subsequent components through the rotating ring 45, realizing the lateral adjustment of the assembly position. The rotary motor 48 drives the gear 49 to rotate. The gear 49 meshes with the gear ring 46, driving the rotating ring 45 to rotate. The rotation of the rotating ring 45 enables the clamping mechanism 7 to adjust the angle to adapt to different assembly angle requirements.
[0029] The adjustment component 5 includes a fixing block 51. Two fixing blocks 51 are fixedly installed on the right side of the rotating ring 45. A fixing cylinder 52 is fixedly installed on the right side of the fixing block 51. A vertical rod 53 extending to the bottom of the fixing cylinder 52 is slidably installed on the top of the fixing cylinder 52. The upper and lower sides of the inner wall of the fixing cylinder 52 are open. A top plate 54 is fixedly installed on the top of the vertical rod 53. An electric push rod 55 is fixedly installed on the top of the fixing block 51. The electric push rod 55 is electrically connected to an external power source and is controlled by an external program. The output end of the electric push rod 55 is fixedly connected to the bottom of the top plate 54.
[0030] The output end of the electric push rod 55 extends and retracts, pushing the top plate 54 to move up and down. The top plate 54 drives the vertical rod 53 to slide along the fixed cylinder 52, realizing the vertical lifting and lowering of the clamping mechanism 7, adjusting the height of the clamping mechanism 7, and ensuring the precise docking of the capping tube segment 3 and the assembly ring 2.
[0031] The mounting mechanism 6 includes a horizontal plate 61, which is fixedly installed at the bottom of two vertical rods 53, and a support rail 62 is fixedly installed at the bottom of the horizontal plate 61.
[0032] The clamping mechanism 7 includes a mounting block 71. The mounting block 71 is movably mounted on the outer side of the support rail 62. The top of the mounting block 71 has a groove that matches the support rail 62. U-shaped blocks 72 extending to the inner side of the horizontal plate 61 are fixedly mounted on both the left and right sides of the mounting block 71. The two U-shaped blocks 72 are symmetrically distributed on the left and right sides. Connecting blocks 73 are fixedly mounted on both the left and right sides of the mounting block 71. A clamping plate 74 is fixedly mounted between the bottoms of the two connecting blocks 73. The clamping plate 74 is connected to the mounting block 71 through the connecting blocks 73 to clamp the capping pipe segment 3.
[0033] The horizontal plate 61 has mounting grooves on both the left and right sides. The inner walls of the mounting grooves are open on both the front and back sides. The horizontal plate 61 is designed in the shape of an "I". One end of the U-shaped block 72 fits against the inner wall of the mounting groove.
[0034] The limiting mechanism 8 includes a housing 801, which is fixedly installed on the top of the horizontal plate 61. A servo motor 802 is fixedly installed on the inner top wall of the housing 801. The servo motor 802 is electrically connected to an external power supply and controlled by an external program. The output shaft of the servo motor 802 can rotate in both directions. A threaded rod 803, which is rotatably connected to the inner bottom wall of the housing 801, is fixedly installed at the output shaft of the servo motor 802. The bottom of the threaded rod 803 is rotatably connected to the inner bottom wall of the housing 801 through a bearing. A screw is threadedly connected to the outer side of the threaded rod 803. On both sides of the threaded block 804, rectangular plates 805 extending to the outside of the box body 801 are fixedly installed. The inner wall of the box body 801 has rectangular holes adapted to the moving trajectory of the rectangular plates 805. A locking plate 806 that engages with the U-shaped block 72 is fixedly installed at the bottom of the rectangular plate 805. A slot adapted to the locking plate 806 is opened at the top of the U-shaped block 72. Right-angle plates 807 extending to the opposite sides of the two U-shaped blocks 72 are slidably installed on both sides of the inner wall of the box body 801. The inner wall of the box body 801 has slots that... A right-angle plate 807 has a corresponding through hole. A right-angle support plate 808 extending into the inner side of the box body 801 is fixedly installed on the top of the right-angle plate 807. A limiting hole matching the right-angle support plate 808 is provided on the inner wall of the box body 801. The right-angle support plate 808 ensures the stability of the right-angle plate 807's movement. A return spring 809, fixedly connected to the outer side of the box body 801, is fixedly installed on the inner wall of the right-angle support plate 808. The elastic coefficient of the return spring 809 can be set according to requirements. A single right-angle support plate 808 has a return spring 809 on its inner side. There are two of them. The top of the right-angle plate 807 is fixedly installed with a wedge block 810 located inside the box 801. The left and right sides of the threaded block 804 are fixedly installed with U-shaped plates 811 that are slidably connected to the top of the two wedge blocks 810 respectively. The bottom of the U-shaped plate 811 is inclined. The U-shaped plate 811 is located above the rectangular plate 805. The right-angle plate 807 is fixedly installed with a limiting block 812 that engages with the U-shaped block 72 on the side close to the U-shaped block 72. The U-shaped block 72 has a rectangular limiting groove inside that matches the limiting block 812.
[0035] In use, the device is installed inside the shield machine shell 1. When installing the capping segment 3 through the clamping mechanism 7, ensure that it is aligned with the assembly ring 2. Check the power supply and connection of components such as the electric slide rail 42, electric slider 43, rotary motor 48 and electric push rod 55. The electric slider 43 slides along the electric slide rail 42 to move the fixing ring 44 to the target assembly position. The electric push rod 55 extends and retracts, and the height of the clamping mechanism 7 is adjusted by the vertical rod 53. The rotary motor 48 drives the gear 49 to rotate the rotating ring 45 and adjust the assembly angle of the capping segment 3. The clamping plate 74 clamps the capping segment. Through the horizontal movement and rotation adjustment of the assembly component 4 and the vertical lifting and lowering of the adjustment component 5, the segment is accurately assembled to the designated position.
[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0037] In summary, this shield tunnel segment capping block assembly device, through the setting of installation mechanism 6, clamping mechanism 7, and limiting mechanism 8, uses installation mechanism 6 to install clamping mechanism 7 and limiting mechanism 8 to complete fixation. When it is necessary to remove clamping plate 74, servo motor 802 is started to drive threaded rod 803 to rotate. Threaded block 804 drives rectangular plate 805 and clamping plate 806 to move upward to release the limiting on top of U-shaped block 72. Next, threaded block 804 drives U-shaped plate 811 to move upward, releasing the fixation on wedge block 810. At this time, under the tension of return spring 809, right-angle support plate 808 is driven to move straight... When the angle plate 807 moves outward, the right-angle plate 807 drives the limiting block 812 to move and release its restriction on the side of the U-shaped block 72. Then, the U-shaped block 72 can be pulled to slide in the mounting groove in the horizontal plate 61 until it is disengaged, separating the mounting block 71 from the support rail 62. This completes the disassembly of the clamping plate 74, allowing for the replacement of clamping plates of different sizes as needed. This achieves the goal of detachable and replaceable clamps to adapt to different sizes of tunnel segments, solving the problem that the same device can only be used for shield tunnels of one diameter, and that the clamps are fixed and cannot be disassembled and replaced, making it impossible to adapt to clamping different types of tunnel segments and reducing the versatility of the equipment.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A shield tunnel segment capping block assembly device, comprising a shield machine shell (1) and an assembly assembly (4), wherein the assembly assembly (4) is located inside the shield machine shell (1), an assembly ring (2) is movably installed inside the shield machine shell (1), and a capping segment (3) movably connected to the assembly ring (2) is provided inside the shield machine shell (1), the assembly assembly (4) extends from the left side to the right side of the assembly ring (2), and an adjustment assembly (5) is provided on the right side of the assembly assembly (4), characterized in that: The adjustment component (5) is provided with an installation mechanism (6) at its bottom, a clamping mechanism (7) is provided at its bottom, and a limiting mechanism (8) connected to the clamping mechanism (7) is provided at its top. The assembly component (4) includes two brackets (41). The brackets (41) are located on the left side of the assembly ring (2). An electric slide rail (42) is fixedly installed on the right side of the brackets (41). An electric slider (43) is slidably installed on the opposite sides of the two electric slide rails (42). A fixing ring (44) is fixedly installed between the outer sides of the two electric sliders (43). A rotating ring (45) is rotatably connected to the right side of the fixing ring (44). A gear ring (46) is fixedly installed on the inner side wall of the rotating ring (45). A motor frame (47) is fixedly installed on the inner bottom wall of the fixing ring (44). A rotary motor (48) is fixedly installed on the inner side of the motor frame (47). A gear (49) that meshes with the gear ring (46) is fixedly installed at the output shaft of the rotary motor (48).
2. The shield tunnel segment capping block assembly device according to claim 1, characterized in that: The adjustment component (5) includes a fixing block (51). Two fixing blocks (51) are fixedly installed on the right side of the rotating ring (45). A fixing cylinder (52) is fixedly installed on the right side of the fixing block (51). A vertical rod (53) extending to the bottom of the fixing cylinder (52) is slidably installed on the top of the fixing cylinder (52). A top plate (54) is fixedly installed on the top of the vertical rod (53). An electric push rod (55) is fixedly installed on the top of the fixing block (51). The output end of the electric push rod (55) is fixedly connected to the bottom of the top plate (54).
3. The shield tunnel segment capping block assembly device according to claim 2, characterized in that: The mounting mechanism (6) includes a horizontal plate (61), which is fixedly installed at the bottom of two vertical rods (53), and a support rail (62) is fixedly installed at the bottom of the horizontal plate (61).
4. The shield tunnel segment capping block assembly device according to claim 3, characterized in that: The clamping mechanism (7) includes a mounting block (71), which is movably mounted on the outer side of the support rail (62). U-shaped blocks (72) extending to the inner side of the horizontal plate (61) are fixedly mounted on both the left and right sides of the mounting block (71). Connecting blocks (73) are fixedly mounted on both the left and right sides of the mounting block (71). A clamping plate (74) is fixedly mounted between the bottoms of the two connecting blocks (73).
5. The shield tunnel segment capping block assembly device according to claim 4, characterized in that: The limiting mechanism (8) includes a box body (801), which is fixedly installed on the top of the horizontal plate (61). A servo motor (802) is fixedly installed on the inner top wall of the box body (801). A threaded rod (803) that is rotatably connected to the inner bottom wall of the box body (801) is fixedly installed at the output shaft of the servo motor (802). A threaded block (804) is threadedly connected to the outer side of the threaded rod (803). A rectangular plate (805) extending to the outer side of the box body (801) is fixedly installed on both the left and right sides of the threaded block (804). A locking plate (806) that engages with a U-shaped block (72) is fixedly installed at the bottom of the rectangular plate (805). Two U-shaped blocks (72) extending to the inner sides of the box body (801) are slidably installed on both the left and right sides of the inner wall. A right-angle plate (807) on the opposite side, a right-angle support plate (808) extending to the inside of the box body (801) is fixedly installed on the top of the right-angle plate (807), a return spring (809) fixedly connected to the outside of the box body (801) is fixedly installed on the inner wall of the right-angle support plate (808), a wedge block (810) located inside the box body (801) is fixedly installed on the top of the right-angle plate (807), and U-shaped plates (811) slidably connected to the top of the two wedge blocks (810) are fixedly installed on both the left and right sides of the threaded block (804), the U-shaped plates (811) are located above the rectangular plate (805), and a limiting block (812) that engages with the U-shaped block (72) is fixedly installed on the side of the right-angle plate (807) near the U-shaped block (72).
6. The shield tunnel segment capping block assembly device according to claim 4, characterized in that: The horizontal plate (61) has mounting grooves on both the left and right sides. The inner walls of the mounting grooves are open on both the front and back sides. One end of the U-shaped block (72) is attached to the inner wall of the mounting groove.