Shield tunneling advance drilling and grouting construction device facilitating hole alignment adjustment

Abstract

The utility model relates to the technical field of shield advance drilling and grouting construction, and discloses a shield tunneling advance drilling and grouting construction device convenient for hole alignment adjustment, which comprises a mounting frame, a pitching frame and an adjusting mechanism, the adjusting mechanism comprises a longitudinal sliding seat and a transverse sliding seat, the longitudinal sliding seat is connected with one end of the mounting frame, the pitching frame is fixedly connected with the transverse sliding seat, and the transverse sliding seat is fixedly connected with the mounting frame. An arc-shaped sliding groove is formed in the longitudinal sliding seat, an arc-shaped sliding block is fixedly connected to the transverse sliding seat, and the arc-shaped sliding block is arranged in the arc-shaped sliding groove in a sliding mode. During use, the mounting frame is mounted on the segment assembling machine, the pitching frame is provided with the drilling and injecting mechanism, the arc-shaped sliding groove and the arc-shaped sliding block are both matched with the rotation center of the segment assembling machine, and when the drilling and injecting mechanism needs to be aligned with a to-be-drilled hole, the drilling and injecting mechanism can be moved to the position near the to-be-drilled hole through the segment assembling machine firstly, and then the to-be-drilled hole is drilled through the drilling and injecting mechanism; and then fine adjustment is achieved by enabling the transverse sliding base to transversely slide, the hole aligning and positioning process of the drilling and injecting mechanism and the to-be-drilled hole can be completed more quickly and accurately, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of shield tunneling advance drilling and grouting construction technology, specifically a shield tunneling advance drilling and grouting construction device that facilitates hole adjustment. Background Technology

[0002] In existing technologies, during shield tunneling advance drilling and injection construction, the advance drilling rig is usually directly fixed on the segment assembly machine for advance drilling and injection. Since the advance drilling rig vibrates during operation, these vibrations are transmitted to the segment assembly machine through the connection between the advance drilling rig and the segment assembly machine, inevitably causing damage to the segment assembly machine.

[0003] In response, we have developed a shield tunneling pre-drilling construction device and method (see Chinese Invention Patent, Application No. 202410778382.4). Before drilling construction, the device can press the pitching frame onto the installed tunnel segments through the shield machine's foot shoe cylinder, thereby fixing the drilling mechanism and simultaneously disconnecting the pitching frame from the segment assembly machine. This effectively prevents the vibration generated during drilling construction from being directly transmitted to the segment assembly machine and causing damage to it.

[0004] However, in practical applications, this construction device still has certain defects. The main problem is that when adjusting the circumferential position of the borehole, the entire device is directly driven to rotate circumferentially by the segment assembly machine. It is difficult to control the accuracy of the hole, and multiple rotations are often required to achieve accurate alignment during construction, which also affects the construction efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shield tunneling advance drilling and injection construction device that facilitates hole adjustment, which can quickly and accurately complete the hole positioning between the drilling and injection mechanism and the hole to be drilled.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A shield tunneling pre-drilling and injection construction device for easy hole adjustment includes an installation frame, an elevation mechanism, and a drilling and injection mechanism. The elevation mechanism includes an elevation frame and an elevation hydraulic cylinder. The drilling and injection mechanism includes a propulsion beam, which is rotatably connected to the elevation frame. Both ends of the elevation hydraulic cylinder are rotatably connected to the propulsion beam and the elevation frame, respectively. A clamping and fixing plate is provided on the elevation frame. One side of the clamping and fixing plate is adapted to the shield machine's foot shoe cylinder, and the other side of the clamping and fixing plate is adapted to the front end of the installed tunnel segment.

[0008] It also includes an adjustment mechanism, which includes a longitudinal slide and a transverse slide. One end of the mounting frame can be connected to the segment assembly machine, the longitudinal slide is connected to the other end of the mounting frame, and the pitching frame is fixedly connected to the transverse slide.

[0009] The longitudinal slide block is provided with an arc-shaped slide groove, and the transverse slide block is fixedly connected with an arc-shaped slider. The arc-shaped slider is slidably disposed in the arc-shaped slide groove, and both the arc-shaped slide groove and the arc-shaped slider are adapted to the rotation center of the segment assembly machine.

[0010] Furthermore, the adjustment mechanism also includes a drive device, which includes a drive shaft, a gear, and an arc-shaped rack. The drive shaft is rotatably connected to the transverse slide, the gear is fixedly sleeved on the drive shaft, the arc-shaped rack is concentrically adapted to the arc-shaped slide groove, the arc-shaped rack is fixedly installed on the longitudinal slide, and the gear meshes with the arc-shaped rack.

[0011] Furthermore, the adjustment mechanism also includes a drive motor and a worm gear reducer. The worm gear reducer is fixedly mounted on the transverse slide, and the drive motor is used to drive the worm of the worm gear reducer to rotate. The worm wheel of the worm gear reducer is fixedly sleeved on the drive shaft.

[0012] Specifically, the transverse slide is slidably connected to the mounting frame, the transverse slide has a slot, the mounting frame has a fixed block, the slot is adapted to the block, and a spring is also included. The spring is used to provide elastic force to press the slot towards the block. The sliding direction of the transverse slide and the elastic force direction of the spring are both adapted to the extension and retraction direction of the piston rod of the shield machine's foot shoe cylinder.

[0013] Specifically, the transverse slide includes two inner structural plates, which are fixedly connected to the bottom ends of the pitch frame, respectively. The two inner structural plates are arranged opposite to each other, and the arc-shaped sliders are provided on the sides of the two inner structural plates that are far apart from each other. The longitudinal slide includes two outer structural plates and several tension bolts. The two outer structural plates are arranged opposite to each other, and the arc-shaped grooves are provided on the sides of the two outer structural plates that are close to each other. The two arc-shaped sliders are slidably arranged in the two arc-shaped grooves, and the two outer structural plates are connected by several tension bolts.

[0014] Specifically, the drive shaft is rotatably connected to both inner structural plates. The drive shaft is located directly below the rotatable connection point between the propulsion beam and the pitching frame. Gears are fixedly sleeved at both ends of the drive shaft. Arc-shaped racks are fixedly installed on both outer connecting plates. The two gears mesh with the two arc-shaped racks respectively.

[0015] The beneficial effects of this utility model are:

[0016] This shield tunneling pre-drilling and grouting construction device, which facilitates borehole adjustment, is based on existing equipment (see Chinese invention patent application for a shield tunneling pre-drilling and grouting construction device and method, application number 202410778382.4) with the addition of an adjustment mechanism. The existing equipment includes a mounting frame and an elevation frame. This adjustment mechanism includes a longitudinal slide and a transverse slide. One end of the mounting frame is connected to the segment assembly machine, the longitudinal slide is connected to the other end of the mounting frame, and the elevation frame is fixedly connected to the transverse slide. In the longitudinal... An arc-shaped groove is provided on the slide block, and an arc-shaped slider is fixedly connected to the transverse slide block. The arc-shaped slider is slidably set in the arc-shaped groove. Both the arc-shaped groove and the arc-shaped slider are adapted to the rotation center of the segment assembly machine. When it is necessary to align the drilling mechanism with the hole to be drilled, the drilling mechanism can be moved to the vicinity of the hole to be drilled by the segment assembly machine. Then, fine adjustment can be achieved by sliding the transverse slide block laterally. The alignment and positioning process of the drilling mechanism with the hole to be drilled can be completed more quickly and accurately, improving construction efficiency. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a shield tunneling pre-drilling and injection construction device that facilitates hole adjustment according to this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment mechanism in a shield tunneling pre-drilling construction device that facilitates hole adjustment according to this utility model.

[0019] Figure 3 for Figure 2 A schematic diagram of the transverse slide in the adjustment mechanism shown;

[0020] Figure 4 for Figure 2 A schematic diagram of the longitudinal slide in the adjustment mechanism shown;

[0021] In the diagram, 1-mounting bracket, 2-tilt bracket, 3-tilt hydraulic cylinder, 4-propulsion beam, 5-clamping plate, 6-longitudinal slide block, 7-lateral slide block, 8-arc-shaped slide groove, 9-arc-shaped slider, 10-drive shaft, 11-gear, 12-arc-shaped rack, 13-worm gear reducer, 14-slot, 15-inner structural plate, 16-outer structural plate, 17-tension bolt. Detailed Implementation

[0022] The technical solution of this utility model is described in further detail below with reference to the accompanying drawings, but the scope of protection of this utility model is not limited to the following description.

[0023] like Figures 1 to 4As shown, a shield tunneling pre-drilling and grouting construction device that facilitates hole adjustment is an improved model based on the original equipment (see Chinese Invention Patent Application No. 202410778382.4, "A Shield Tunneling Pre-drilling and Grouting Construction Device and Method"). The original equipment includes a mounting frame 1, a pitching mechanism, and a drilling and grouting mechanism. The pitching mechanism includes a pitching frame 2 and a pitching hydraulic cylinder 3. The drilling and grouting mechanism includes a propulsion beam 4, which is rotatably connected to the pitching frame 2. Both ends of the pitching hydraulic cylinder 3 are rotatably connected to the propulsion beam 4 and the pitching frame 2, respectively. A clamping and fixing plate 5 is provided on the pitching frame 2. One side of the clamping and fixing plate 5 is adapted to the shield machine's foot shoe cylinder, and the other side of the clamping and fixing plate 5 is adapted to the front end of the installed tunnel segment.

[0024] When advanced drilling and grouting is required, the existing equipment uses a mounting frame 1 mounted on a segment assembly machine. Since the segment assembly machine's rotation center is the tunnel axis, theoretically, the drilling and grouting mechanism can be transported to any position on a circle centered on the tunnel axis, achieving positioning of the drilling and grouting mechanism. However, in actual operation, due to the large size of the segment assembly machine, precise control of its rotation stroke is difficult, leading to problems with controlling hole accuracy. Therefore, an adjustment mechanism is added, comprising a longitudinal slide 6 and a transverse slide 7. One end of the mounting frame 1 is connected to the segment assembly machine, the longitudinal slide 6 is connected to the other end of the mounting frame 1, and the pitching frame 2 is fixedly connected to the transverse slide 7. An arc-shaped groove 8 is provided on the longitudinal slide 6, and an arc-shaped slider 9 is fixedly connected to the transverse slide 7. The arc-shaped slider 9 is slidably positioned within the arc-shaped groove 8. Both the arc-shaped chute 8 and the arc-shaped slider 7 are adapted to the rotation center of the segment assembly machine. That is, both the arc-shaped chute 8 and the arc-shaped slider 7 are located on the vertical section of the tunnel, and their centers are both on the tunnel's central axis. When the longitudinal slide 6 is fixed on the mounting frame 1, guided by the arc-shaped chute 8 and the arc-shaped slider 7, the transverse slide 7 can slide laterally along an arc trajectory centered on the tunnel center. Therefore, when it is necessary to align the drilling mechanism with the borehole, the drilling mechanism can first be moved to the vicinity of the borehole using the segment assembly machine, and then fine-tuned by sliding the transverse slide 7 laterally. This allows for a faster and more accurate alignment process between the drilling mechanism and the borehole.

[0025] Furthermore, such as Figure 2 As shown, the adjustment mechanism also includes a drive device, which comprises a drive shaft 10, a gear 11, and an arc-shaped rack 12. The drive shaft 10 is rotatably connected to the transverse slide 7, and the gear 11 is fixedly mounted on the drive shaft 10. The arc-shaped rack 12 is fixedly mounted on the longitudinal slide 6, and the arc-shaped rack 12 is concentrically fitted with the arc-shaped slide groove 8. The gear 11 meshes with the arc-shaped rack 12. When the drive shaft 10 rotates, it can drive the gear 11 to rotate, thereby completing the aforementioned transverse sliding process under the meshing action of the gear 11 and the arc-shaped rack 12.

[0026] Furthermore, the adjustment mechanism also includes a drive motor and a worm gear reducer 13, which are commercially available integrated devices. The drive motor is fixedly connected to the housing of the worm gear reducer 13, and the output shaft of the drive motor is fixedly connected to the worm of the worm gear reducer 13. The worm gear reducer 13 is fixedly mounted on the transverse slide 7, and the worm wheel of the worm gear reducer is fixedly sleeved on the drive shaft 10. When the drive motor rotates, it can drive the worm of the worm gear reducer to rotate, which in turn drives the drive shaft 10 to rotate through its worm wheel. Thus, the aforementioned fine-tuning process can be automatically controlled by the drive motor. At the same time, since the worm gear reducer 13 has a self-locking characteristic, the position can be locked after the position fine-tuning is completed.

[0027] Unlike the original equipment, this new system incorporates an adjustment mechanism. In practical implementation, the transverse slide 6 is slidably connected to the mounting frame 1. The transverse slide 6 has a slot 14, and the mounting frame 1 has a fixed locking block. The slot 14 and the locking block are matched, and a spring is also provided to provide the elastic force that presses the slot 14 towards the locking block. The sliding direction of the transverse slide 6 and the direction of the spring force are both compatible with the extension and retraction direction of the piston rod of the tunnel boring machine's foot shoe cylinder. This locking structure is similar to the original equipment, and its working principle is the same; the specific working process will not be described in detail here.

[0028] In specific implementation, such as Figure 3 As shown, the transverse slide 7 includes two inner structural plates 15, which are fixedly connected to the bottom ends of the pitch frame 2 by welding or other means. The two inner structural plates 15 are arranged opposite to each other, and the aforementioned arc-shaped sliders 9 are welded to the sides of the two inner structural plates 15 that are far apart from each other. Figure 4 The longitudinal slide block 6 includes two outer structural plates 16 and several tension bolts 17. The two outer structural plates 16 are arranged opposite each other, and each of the two outer structural plates 16 has the aforementioned arc-shaped sliding groove 8 on its side closest to each other. Two arc-shaped sliders 9 are slidably arranged in the two arc-shaped sliding grooves 8 respectively, and the two outer structural plates 16 are connected by several tension bolts 17. This design is simple in structure and easy to assemble, and can be directly modified on existing equipment. After assembly, tightening the tension bolts 17 clamps the two outer structural plates 7 inward. The limiting effect of the arc-shaped sliding grooves 8 and the arc-shaped sliders 7, as well as the self-locking characteristic of the worm gear reducer 13, can effectively ensure that the transverse slide block 7 and the longitudinal slide block 6 are relatively fixed after the aforementioned fine adjustment.

[0029] In specific implementation, the drive shaft 10 is rotatably connected to both inner structural plates 15. The drive shaft 10 is located directly below the rotatable connection point between the propulsion beam 4 and the pitching frame 2, so that the rotatable connection point and the drive shaft 10 are always arranged in the radial direction of the tunnel when the transverse slide 6 slides laterally. The aforementioned gears 11 are fixedly sleeved at both ends of the drive shaft 10, and the aforementioned arc-shaped racks 9 are fixedly installed on both outer connecting plates 16. The two gears 11 mesh with the two arc-shaped racks 9 respectively, which helps to ensure the stability of the transverse slide 6 during the transverse sliding process.

[0030] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A shield tunneling advance drilling and grouting construction device facilitating adjustment of a hole, comprising a mounting frame, a pitch mechanism, and a drilling and grouting mechanism, the pitch mechanism comprising a pitch frame and a pitch hydraulic cylinder, the drilling and grouting mechanism comprising a push beam, the push beam being rotatably connected with the pitch frame, two ends of the pitch hydraulic cylinder being rotatably connected with the push beam and the pitch frame respectively, a pressing and fixing plate being arranged on the pitch frame, one side of the pressing and fixing plate being adapted to a shield machine shoe oil cylinder, and the other side of the pressing and fixing plate being adapted to a front end of an installed tunnel segment, characterized in that ； Further comprising an adjusting mechanism, the adjusting mechanism comprises a longitudinal slide and a transverse slide, one end of the mounting frame is connectable with a segmental assembling machine, the longitudinal slide is connected with the other end of the mounting frame, the pitching frame is fixedly connected with the transverse slide; The longitudinal slide is provided with an arc-shaped sliding groove, the transverse slide is fixedly connected with an arc-shaped sliding block, the arc-shaped sliding block is slidably arranged in the arc-shaped sliding groove, and the arc-shaped sliding groove and the arc-shaped sliding block are matched with the center of rotation of the segmental assembling machine.

2. The shield tunneling advance drilling and grouting device for facilitating adjustment of a bore according to claim 1, characterized in that, The adjusting mechanism further comprises a driving device, the driving device comprises a driving shaft, a gear and an arc-shaped rack, the driving shaft is rotatably connected with the transverse slide, the gear is fixedly sleeved on the driving shaft, the arc-shaped rack is concentrically matched with the arc-shaped sliding groove, and the arc-shaped rack is fixedly installed on the longitudinal slide.

3. The shield tunneling advance drilling and grouting device for facilitating adjustment of a bore according to claim 2, characterized in that, The adjusting mechanism further comprises a driving motor and a worm gear reducer, the worm gear reducer is fixedly installed on the transverse slide, the driving motor is used to drive the worm of the worm gear reducer to rotate, and the worm wheel of the worm gear reducer is fixedly sleeved on the driving shaft.

4. The shield tunneling advance drilling and grouting device for facilitating adjustment of a bore according to claim 3, characterized in that, The transverse slide is slidably connected with the mounting frame, the transverse slide is provided with a clamping groove, the mounting frame is fixedly provided with a clamping block, the clamping groove is matched with the clamping block, and further comprising a spring, the spring is used to provide elastic force for pressing the clamping groove towards the clamping block, and the sliding direction of the transverse slide and the elastic force direction of the spring are matched with the piston rod extension direction of the shield machine palm shoe oil cylinder.

5. The shield tunneling advance drilling and grouting device for facilitating adjustment of a bore according to claim 3, characterized in that, The transverse slide comprises two inner structure plates, the two inner structure plates are fixedly connected with the two ends of the bottom of the pitching frame respectively, the two inner structure plates are oppositely arranged, and the two inner structure plates are provided with the arc-shaped sliding blocks on the sides away from each other. The longitudinal slide comprises two outer structure plates and a plurality of tension bolts, the two outer structure plates are oppositely arranged, the two outer structure plates are provided with the arc-shaped sliding grooves on the sides close to each other, the two arc-shaped sliding blocks are slidably arranged in the two arc-shaped sliding grooves respectively, and the two outer structure plates are connected through the plurality of tension bolts.

6. The shield tunneling advance drilling and grouting device for facilitating adjustment of a bore according to claim 5, wherein, The driving shaft is rotatably connected with the two inner structure plates, the driving shaft is arranged directly below the rotation connection point between the pushing beam and the pitching frame, the two ends of the driving shaft are fixedly sleeved with the gears, the two outer connection plates are fixedly provided with the arc-shaped racks, and the two gears are meshed with the two arc-shaped racks respectively.

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