Steel arch assembly device for tunneling equipment

Abstract

The application provides a steel arch assembly device for tunneling equipment, which is installed on a connecting frame between a front shield and a rear shield of a tunneling machine, and comprises a support ring, a rotary ring and an assembly structure; the support ring is slidably installed on a slide rail provided on the connecting frame through a support frame provided on an inner wall; the rotary ring is rotatably sleeved in an annular groove provided on an outer wall of the support ring through an annular protrusion provided on an inner wall; a driving mechanism that is in transmission connection with the rotary ring is installed on a side wall of the support ring, and the driving mechanism drives the rotary ring to rotate on the support ring; the assembly structure is installed on the rotary ring, and after the assembly structure grabs the steel arch, the steel arch is rotated and moved and assembled under the rotation of the rotary ring; an edge of a rear end of the front shield is provided with a hydraulic cylinder I for pressing the steel arch; the application reduces the labor cost, improves the assembly efficiency by automatically assembling the steel arch through a machine, and reduces the safety risk of workers, and has a high safety factor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel steel arch assembly, in particular to a steel arch assembly device for tunnel boring equipment. BACKGROUND

[0002] The TBM tunnel boring machine is mainly used for tunnel excavation, mine brick well and other purposes. After the tunnel boring machine excavates the tunnel, it is necessary to assemble the steel arch 8 on the wall of the tunnel to support the tunnel, avoid the falling of the debris and protect the safety of the workers. At present, when assembling the steel arch 8, the workers usually assemble the steel arch 8 and fix it by bolts. This method is high in labor cost, low in construction efficiency and high in danger coefficient for the workers. SUMMARY

[0003] In order to overcome the problems in the background art, the present application provides a steel arch 8 assembly device for tunnel boring equipment to solve the technical problems that the existing steel arch 8 assembly is usually assembled by workers and fixed by bolts, which is high in labor cost, low in construction efficiency and high in danger coefficient for the workers.

[0004] To achieve the above-mentioned purpose, the present application realizes the following technical scheme:

[0005] A steel arch assembly device for tunnel boring equipment, which is installed on the connecting frame 3 between the front shield 1 and the rear shield 2 of the tunnel boring machine, comprising a support ring 4, a rotary ring 5 and an assembly structure 6. The support ring 4 is slidingly installed on the slide rail 31 provided on the connecting frame 3 through the support frame 41 provided on the inner wall. The rotary ring 5 is rotatably sleeved in the annular groove 42 provided on the outer wall of the support ring 4 through the annular protrusion 51 provided on the inner wall. The support ring 4 is provided with a driving mechanism 7 drivingly connected with the rotary ring 5 on the side wall, and the driving mechanism 7 drives the rotary ring 5 to rotate on the support ring 4. The assembly structure 6 is installed on the rotary ring 5, and after the assembly structure 6 grabs the steel arch 8, the steel arch 8 is rotated and moved and assembled under the rotation of the rotary ring 5. The edge of the rear end of the front shield 1 is provided with a hydraulic cylinder I 11 pressing the steel arch 8. The front end of the rear shield 2 is provided with a hydraulic cylinder II 21 pushing the support ring 4 to slide on the connecting frame 3, and the telescopic end of the hydraulic cylinder II 21 is connected to the support frame 41.

[0006] Preferably, the assembly structure 6 comprises two clamping devices 61 and a hydraulic cylinder III 62. The two clamping devices 61 are slidingly sleeved on the two support columns 63 provided parallel to each other at the ends of the rotary ring 5. The hydraulic cylinder III 62 is installed on the side wall of the rotary ring 5, and its telescopic end is connected to the connecting plate 64 connected between the two clamping devices 61. The hydraulic cylinder III 62 pushes the two clamping devices 61 to move telescopically through the connecting plate 64 to grab the steel arch 8.

[0007] Preferably, the clamping device 61 comprises a sliding sleeve 611, a fixed clamping plate 612, a movable clamping plate 613, a mounting plate 614, and a hydraulic cylinder IV 615; the sliding sleeve 611 is sleeved on the support column 63, the fixed clamping plate 612 is mounted at the end of the sliding sleeve 611, the mounting plate 614 is fixedly connected to the upper end of the side wall of the sliding sleeve 611, the hydraulic cylinder IV 615 is mounted on the mounting plate 614, and the movable clamping plate 613 is connected to the telescopic end of the hydraulic cylinder IV 615. The movable clamping plate 613 is moved by the hydraulic cylinder IV 615 to clamp and grab the steel arch 8 together with the fixed clamping plate 612.

[0008] Preferably, the driving mechanism 7 comprises a driving gear 71, a U-shaped mounting bracket 72, and a driving motor 73; the mounting bracket 72 is mounted on the side wall of the support ring 4; the driving gear 71 is rotatably mounted between the side wall of the support ring 4 and the mounting bracket 72, and is in transmission connection with the driving motor 73 mounted on the mounting bracket 72; and the driving gear 71 is in meshing connection with the transmission teeth 74 provided on the side wall of the rotating ring 5.

[0009] Preferably, the lower part of the rear shield 2 is provided with a conveying belt for conveying the steel arch 8 from outside the tunnel to below the assembling structure 6.

[0010] A steel arch 8 for the above-mentioned assembling device, wherein the two ends of the steel arch 8 are provided with a bayonet 81 for clamping the ends of two steel arches 8 to each other, the front surface of the steel arch 8 is provided with a clamping groove 82 for facilitating clamping and fixing by the clamping device 61; and the back surface of the steel arch 8 is provided with a positioning pin 84 matched with the positioning hole 83 provided on the front surface of the steel arch 8.

[0011] Preferably, the end of the positioning pin 84 is provided with a round head for facilitating insertion into the positioning hole 83.

[0012] An assembling method based on the above-mentioned steel arch 8 and the steel arch 8 assembling device, comprising the following steps:

[0013] S1, the steel arch 8 is conveyed to below the assembling device by the conveying belt;

[0014] S2, the driving mechanism 7 drives the rotating ring 5 to rotate to drive the assembling device to rotate above the steel arch 8, the hydraulic cylinder III 62 pushes the two clamping devices 61 to move downward, so that the clamping devices 61 are clamped in the clamping grooves 82 of the steel arch 8;

[0015] S3, the hydraulic cylinder III 62 lifts the steel arch 8, the hydraulic cylinder II 21 pushes the support ring 4 to drive the steel arch 8 to move transversely, the hydraulic cylinder III 62 pushes the steel arch 8 to be attached to the tunnel wall, the hydraulic cylinder I 11 pushes the steel arch 8 to make the positioning pin 84 on the back surface of the steel arch 8 inserted into the positioning hole 83 on the side wall of the steel arch 8 which has been assembled, and the steel arch 8 is fixed;

[0016] S4, then the next steel arch 8 is clamped by the clamping device 61, the steel arch 8 is rotated by the rotating ring 5 and is butted at the end of the steel arch 8 which has been installed, then the steel arch 8 is pushed by the hydraulic cylinder I 11 so that the positioning pin 84 at the back of the steel arch 8 is inserted into the positioning hole 83 of the side wall of the steel arch 8 which has been assembled, and the steel arch 8 is fixed;

[0017] S5, a plurality of steel arches 8 are butted and assembled in sequence, so that the steel arch 8 assembly in a ring shape is assembled.

[0018] Preferably, when the steel arch 8 is assembled, the positioning pin 84 at the back of the steel arch 8 is provided with two steel arches 8 which are inserted on two steel arches 8 of the steel arch 8 assembly of the upper layer, so that the steel arch 8 is staggered with the steel arch 8 of the upper layer when the steel arch 8 is installed.

[0019] The beneficial effects of the present application are that: when the steel arch 8 is assembled, the steel arch 8 can be easily grabbed and moved to the corresponding position by the rotating ring 5 and the clamping device 61, the steel arch 8 is pushed by the hydraulic cylinder I 11 provided on the front shield 1 to press and butt with the steel arch 8 of the upper layer which has been assembled, so that the steel arch 8 is assembled more tightly and stably, the present application reduces the cost of human labor, improves the assembly efficiency by automatically assembling the steel arch 8 by the machine, and reduces the safety risk of the workers, and has high safety factor. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the assembly device of the present application installed on a tunnel boring machine.

[0021] Figure 2 is a structural schematic view of the assembly device.

[0022] Figure 3 is a structural schematic view of the support ring and the rotating ring.

[0023] Figure 4 is a structural schematic view of the driving mechanism.

[0024] Figure 5 is a structural schematic view of the assembly structure.

[0025] Figure 6 is a structural schematic view of the clamping device.

[0026] Figure 7 is a structural schematic view of the steel arch. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below with reference to the drawings, so as to facilitate the understanding of the technicians.

[0028] As Figures 1-7 shown, the present application provides a kind of steel arch assembly device for tunneling equipment, steel arch 8 assembly device is installed between the connecting frame 3 of the front shield 1 and rear shield 2 of tunneling machine, including support ring 4, rotary ring 5, assembly structure 6;The support ring 4 is slidably installed on the slide rail 31 of connecting frame 3 by the support frame 41 of inner wall setting;Rotary ring 5 is rotatably set in the annular groove 42 of the outer wall of support ring 4 by the annular protrusion 51 of inner wall setting;Drive mechanism 7 is installed on the side wall of support ring 4 and is drivingly connected with rotary ring 5, and drive mechanism 7 drives rotary ring 5 to rotate on support ring 4;Assembly structure 6 is installed on rotary ring 5, and after assembly structure 6 is grabbed steel arch 8, it is rotated under the rotation of rotary ring 5, and steel arch 8 is rotated and moved and assembled;The edge of the rear end of front shield 1 is provided with hydraulic cylinder I 11 for pressing steel arch 8;The front end of rear shield 2 is provided with hydraulic cylinder II 21 for sliding support ring 4 on connecting frame 3, and the telescopic end of hydraulic cylinder II 21 is connected to support frame 41.When steel arch 8 is assembled, support ring 4 is pushed along the slide rail 31 on connecting frame 3 by hydraulic cylinder II 21, so that steel arch 8 is conveniently clamped and moved horizontally, then rotary ring 5 is driven to rotate along the annular groove 42 of the outer wall of support ring 4 by drive mechanism 7, the assembly device is grabbed and rotated and spliced steel arch 8 on the tunnel wall, and steel arch 8 is pressed tightly against the sidewall of the steel arch 8 that has been assembled by hydraulic cylinder I 11, so that steel arch 8 is assembled more stably and closely;The present application reduces the cost of labor, improves the assembly efficiency by automatically assembling steel arch 8 by machine, and reduces the safety risk of workers, with high safety factor.

[0029] As Figures 2-3 shown, the assembly structure 6 includes two clamping devices 61 and hydraulic cylinder III 62, the two clamping devices 61 are slidably sleeved on the two support columns 63 respectively and arranged parallel to each other at the ends of rotary ring 5;Hydraulic cylinder III 62 is installed on the side wall of rotary ring 5, and the telescopic end thereof is connected to the connecting plate 64 connected between the two clamping devices 61, and hydraulic cylinder III 62 drives the telescopic movement of the two clamping devices 61 by the connecting plate 64 to grab steel arch 8. By pushing the two clamping devices 61 to slide on the support columns 63 by hydraulic cylinder III 62, the clamping devices 61 can conveniently clamp steel arch 8, and steel arch 8 can be rotated by rotary ring 5, steel arch 8 can be spliced on the tunnel wall by hydraulic cylinder III 62, and steel arch 8 can be tightly pressed against the sidewall of the steel arch 8 that has been assembled by hydraulic cylinder I 11;The assembly device can conveniently clamp and push steel arch 8 to assemble steel arch 8 on the tunnel wall, improving the efficiency of steel arch 8 assembly.

[0030] As Figures 5-6As shown, the clamping device 61 includes a sliding sleeve 611, a fixed clamping plate 612, a moving clamping plate 613, a mounting plate 614, a hydraulic cylinder IV 615; the sliding sleeve 611 is sleeved on the support column 63, the fixed clamping plate 612 is installed at the end of the sliding sleeve 611, the mounting plate 614 is fixedly connected to the upper end of the side wall of the sliding sleeve 611, the hydraulic cylinder IV 615 is installed on the mounting plate 614, and the moving clamping plate 613 is connected to the telescopic end of the hydraulic cylinder IV 615. The moving clamping plate 613 is moved by the hydraulic cylinder IV 615 to clamp and grab the steel arch 8 together with the fixed clamping plate 612. The clamping device 61 is moved by the hydraulic cylinder III 62, so that the fixed clamping plate 612 moves to the side of the steel arch 8, and then the fixed clamping plate 612 is moved transversely by the hydraulic cylinder II 21 to be inserted below the steel arch 8. Then the moving clamping plate 613 is moved by the hydraulic cylinder IV 615, so that the fixed clamping plate 612 and the moving clamping plate 613 clamp and grab the steel arch 8. Then the steel arch 8 is moved for assembly. The clamping device 61 can conveniently and quickly clamp and move the steel arch 8 for assembly on the tunnel wall, thereby improving the assembly efficiency of the steel arch 8.

[0031] As shown in Figure 4 The driving mechanism 7 includes a driving gear 71, a U-shaped mounting bracket 72, and a driving motor 73. The mounting bracket 72 is installed on the side wall of the support ring 4. The driving gear 71 is rotatably installed between the side wall of the support ring 4 and the mounting bracket 72, and is in transmission connection with the driving motor 73 installed on the mounting bracket 72. The driving gear 71 is in meshing connection with the transmission teeth 74 provided on the side wall of the rotary ring 5. The driving motor 73 drives the driving gear 71 to rotate, and the driving gear 71 drives the rotary ring 5 to rotate through the transmission teeth 74 in meshing connection therewith, so as to drive the steel arch 8 clamped on the clamping device 61 to rotate and assemble on the tunnel wall. The driving mechanism 7 conveniently drives the steel arch 8 to rotate, thereby facilitating the adjustment of the position of the steel arch 8 for assembly.

[0032] The lower part of the rear shield 2 is provided with a conveying belt for conveying the steel arch 8 from outside the tunnel to below the assembly structure 6. The conveying belt facilitates the conveying of the steel arch 8 to the assembly device for assembly, thereby improving the assembly efficiency of the steel arch 8.

[0033] As shown in Figure 7As shown, a steel arch 8 for the above assembling device, the steel arch 8 is provided with a bayonet 81 at both ends to make the two steel arches 8 end to each other, the steel arch 8 is provided with a clamping groove 82 on the front side to facilitate the clamping device 61 clamping and fixing; the steel arch 8 is provided with a positioning pin 84 on the back side which matches the positioning hole 83 on the front side of the steel arch 8. When the steel arch 8 is assembled by the above assembling device, the moving clamping device 61 is moved, the fixed clamping plate 612 is inserted into the clamping groove 82, then the moving clamping plate 613 and the fixed clamping plate 612 are moved by the hydraulic cylinder III 62 and the hydraulic cylinder IV 615 to clamp the steel arch 8, then under the drive of the hydraulic cylinder II 21, the hydraulic cylinder III 62 and the drive mechanism 7, the steel arch 8 is rotated, moved horizontally and longitudinally, the steel arch 8 is moved to the tunnel wall and is butt jointed to the end bayonet 81 of the steel arch 8 which has been assembled on the tunnel wall, then the steel arch 8 is pushed by the hydraulic cylinder I 11 to make the positioning pin 84 on the back side of the steel arch 8 inserted into the positioning hole 83 on the side wall of the steel arch 8 which has been assembled, because the positioning pin 84 and the positioning hole 83 are tightly matched, so the steel arch 8 is connected stably, the stability and safety of the steel arch 8 assembling is improved.

[0034] As shown, Figure 7 The end of the positioning pin 84 is provided with a round head to facilitate the insertion into the positioning hole 83. The end of the positioning pin 84 is provided with a round head to facilitate the insertion into the positioning hole 83, the efficiency of the steel arch 8 assembling is improved.

[0035] Working process:

[0036] S1, the steel arch 8 is conveyed to the bottom of the assembling device by the conveying belt;

[0037] S2, the drive mechanism 7 drives the rotating ring 5 to rotate to drive the assembling device to rotate above the steel arch 8, the two clamping devices 61 are moved downward by the hydraulic cylinder III 62, the clamping device 61 is clamped in the clamping groove 82 of the steel arch 8;

[0038] S3, the steel arch 8 is lifted by the hydraulic cylinder III 62, the steel arch 8 is moved horizontally by the hydraulic cylinder II 21 pushing the support ring 4, the steel arch 8 is attached to the tunnel wall by the hydraulic cylinder III 62, the positioning pin 84 on the back side of the steel arch 8 is inserted into the positioning hole 83 on the side wall of the steel arch 8 which has been assembled by the hydraulic cylinder I 11 pushing the steel arch 8, the steel arch 8 is fixed;

[0039] S4, then the next steel arch 8 is clamped by the clamping device 61, the steel arch 8 is rotated by the rotating ring 5 to butt joint the end of the steel arch 8 in the clamping groove 82 of the steel arch 8 which has been assembled, then the steel arch 8 is pushed by the hydraulic cylinder I 11 to make the positioning pin 84 on the back side of the steel arch 8 inserted into the positioning hole 83 on the side wall of the steel arch 8 which has been assembled, the steel arch 8 is fixed;

[0040] S5, the plurality of steel arches 8 are sequentially butted and assembled, so as to be assembled into a ring-shaped steel arch 8 assembly; when the steel arches 8 are assembled, the positioning pins 84 on the back of the steel arches 8 are provided with two positioning pins respectively inserted into two steel arches 8 of the last layer of steel arch 8 assembly, so that the steel arches 8 are staggered with the last layer of steel arch 8 when installed; the stability of the assembly of the steel arches 8 is increased.

[0041] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A steel arch assembly device for a tunneling apparatus, characterized by: The steel arch assembly device is installed on the connecting frame (3) between the front shield (1) and the rear shield (2) of the tunnel boring machine, and comprises a support ring (4), a rotary ring (5) and an assembly structure (6); the support ring (4) is slidably installed on the slide rail (31) provided on the connecting frame (3) through the support frame (41) provided on the inner wall; the rotary ring (5) is rotatably sleeved in the annular groove (42) provided on the outer wall of the support ring (4) through the annular protrusion (51) provided on the inner wall; the side wall of the support ring (4) is provided with a driving mechanism (7) in transmission connection with the rotary ring (5), and the driving mechanism (7) drives the rotary ring (5) to rotate on the support ring (4); the assembly structure (6) is installed on the rotary ring (5), and after the assembly structure (6) grabs the steel arch (8), the steel arch (8) is rotated and moved and assembled under the rotation of the rotary ring (5); the edge of the rear end of the front shield (1) is provided with a hydraulic cylinder I (11) for pressing the steel arch (8); the front end of the rear shield (2) is provided with a hydraulic cylinder II (21) for sliding the support ring (4) on the connecting frame (3), and the telescopic end of the hydraulic cylinder II (21) is connected to the support frame (41); the assembly structure (6) comprises two clamping devices (61) and a hydraulic cylinder III (62), the two clamping devices (61) are slidably sleeved on the two support columns (63) provided in parallel at the ends of the rotary ring (5); the hydraulic cylinder III (62) is installed on the side wall of the rotary ring (5), and the telescopic end thereof is connected to the connecting plate (64) connected between the two clamping devices (61); the hydraulic cylinder III (62) drives the two clamping devices (61) to move telescopically through the connecting plate (64) to grab the steel arch (8); the clamping device (61) comprises a sliding sleeve (611), a fixed clamping plate (612), a movable clamping plate (613), a mounting plate (614) and a hydraulic cylinder IV (615); the sliding sleeve (611) is sleeved on the support column (63), the fixed clamping plate (612) is installed at the end of the sliding sleeve (611), the mounting plate (614) is fixedly connected to the upper end of the side wall of the sliding sleeve (611), the hydraulic cylinder IV (615) is installed on the mounting plate (614), and the movable clamping plate (613) is connected to the telescopic end of the hydraulic cylinder IV (615); the movable clamping plate (613) is moved by the hydraulic cylinder IV (615) to clamp and grab the steel arch (8) together with the fixed clamping plate (612).

2. A steel arch assembling device for a tunneling equipment according to any one of claims 1, characterized in that: The driving mechanism (7) comprises a driving gear (71), a U-shaped mounting frame (72) and a driving motor (73); the mounting frame (72) is installed on the side wall of the support ring (4); the driving gear (71) is rotatably installed between the side wall of the support ring (4) and the mounting frame (72) and is in transmission connection with the driving motor (73) installed on the mounting frame (72); the driving gear (71) is in engagement with the transmission teeth (74) provided on the side wall of the rotary ring (5).

3. A steel arch assembling device for a tunneling equipment according to claim 2, characterized in that: The lower part of the rear shield (2) is provided with a conveying belt for conveying the steel arch (8) from outside the tunnel to below the assembly structure (6).

4. A steel arch for the assembly apparatus of claim 3, characterized in that: The steel arch (8) is provided with a bayonet (81) at both ends to connect the ends of the two steel arches (8) to each other, and the front of the steel arch (8) is provided with a clamping groove (82) for facilitating clamping and fixing by the clamping device (61); and the back of the steel arch (8) is provided with a positioning pin (84) matched with the positioning hole (83) provided on the front of the steel arch (8).

5. The steel arch of claim 4, wherein: The end of the positioning pin (84) is provided with a round head for facilitating insertion into the positioning hole (83).

6. A method of assembling a tunnel steel arch, using the assembly device according to claim 3 and the steel arch according to claim 4, characterized in that: The method comprises the following steps: S1, the steel arch (8) is conveyed to the lower part of the assembling device by a conveying belt; S2, the driving mechanism (7) drives the rotating ring (5) to rotate to drive the assembling device to rotate above the steel arch (8), the hydraulic cylinder III (62) pushes the two clamping devices (61) to move downward, so that the clamping devices (61) are clamped in the clamping grooves (82) of the steel arch (8); S3, the hydraulic cylinder III (62) lifts the steel arch (8), the hydraulic cylinder II (21) pushes the supporting ring (4) to drive the steel arch (8) to move transversely, the hydraulic cylinder III (62) pushes the steel arch (8) to be attached to the tunnel wall, the hydraulic cylinder I (11) pushes the steel arch (8) to make the positioning pins (84) on the back of the steel arch (8) inserted into the positioning holes (83) in the side walls of the steel arch (8) that has been assembled, so as to fix the steel arch (8); S4, then the next steel arch (8) is clamped by the clamping device (61), the steel arch (8) is rotated by the rotating ring (5) to butt joint the clamping grooves (82) at the ends of the steel arch (8) that has been installed, then the steel arch (8) is pushed by the hydraulic cylinder I (11) to make the positioning pins (84) on the back of the steel arch (8) inserted into the positioning holes (83) in the side walls of the steel arch (8) that has been assembled, so as to fix the steel arch (8); S5, a plurality of steel arches (8) are sequentially butt jointed and assembled, so as to assemble a ring-shaped steel arch (8) assembly.

7. The method of claim 6, wherein: When the steel arch (8) is assembled, the positioning pins (84) on the back of the steel arch (8) are provided with two positioning pins respectively inserted into two steel arches (8) of the steel arch (8) assembly of the upper layer, so that the steel arch (8) is installed to be staggered with the steel arch (8) of the upper layer.

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