Water cutting device for dismantling deformation section of hydraulic tunnel

Abstract

The invention relates to the technical field of tunnel deformation repair, and particularly discloses a water cutting device for dismantling a deformed section of a hydraulic tunnel, which comprises two cutting assemblies, each cutting assembly comprises a fixing device, the fixing devices are mounted on a support ring in the hydraulic tunnel, the fixing devices are connected with an arc-shaped plate through lifters, two sliding seats are mounted on the arc-shaped plate, and the two sliding seats are arranged on the arc-shaped plate. A sliding rod is slidably connected into the sliding seat, a sliding groove is formed in one side of the sliding rod, and a water cutter is slidably connected into the sliding groove. The water cutter slides in the sliding groove in a reciprocating mode to cut the surface of the deformation section, the lifter drives the arc-shaped plate to move towards the inner wall of the hydraulic tunnel to cut the deformation section in a layered mode, in the cutting process, the sliding rod can provide bearing force for the deformation section, and under the effect of the bearing force of the sliding rod, the deformation section can be cut in a layered mode. The geology around the deformation section is supported and protected, and the surrounding geology is prevented from deforming due to cutting of the deformation section.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel deformation repair, in particular to a water cutting device for removing a deformed section of a hydraulic tunnel. Background Art

[0002] A hydraulic tunnel refers to an underground passage built to serve water conservancy projects, and is mainly used for water conservancy functions such as water transmission, drainage, diversion, power generation, and irrigation. It is an important component of water conservancy hubs and is widely used in reservoirs, hydropower stations, water diversion projects and other fields. During the operation of a hydraulic tunnel, the inner wall of the hydraulic tunnel will deform under the combined action of geological factors and operational factors. Severe deformation may cause the tunnel to fail or even collapse. In the existing technology, water cutting is usually used to cut the deformed section of the hydraulic tunnel, remove the deformed and collapsed section, and then reinforce it by spraying concrete. However, the soil around the deformed section of the hydraulic tunnel is already unstable. During water cutting, the surrounding geology has no protection. When the deformed section falls off, it is easy to drive the surrounding soil to spread downward, which makes the surrounding soil also have the risk of deformation. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a water cutting device for removing the deformed section of a hydraulic tunnel.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A water cutting device for removing deformed sections of hydraulic tunnels includes two cutting components, each cutting component includes a fixing device, the fixing device is installed on a support ring in the hydraulic tunnel, the fixing device is connected to an arc plate through a lifter, and two slides are installed on the arc plate, the slide is slidably connected to a slide rod, and a slide groove is provided on one side of the slide rod, and a water cutter is slidably connected to the slide groove. The water cutter slides back and forth in the slide groove to cut the surface of the deformed section, and the lifter drives the arc plate toward the inner wall of the hydraulic tunnel to achieve layered cutting of the deformed section. During the cutting process, the slide rod can provide supporting force for the deformed section.

[0006] Preferably, the fixing device comprises two clamping bases, a connecting rod is fixedly connected between the two clamping bases, and the lifter is installed between the connecting rod and the arc plate; the lifter is driven by a driver to slide back and forth along the connecting rod;

[0007] Preferably, the driver includes a split sliding sleeve, which is slidably connected to the connecting rod, one side of the lifter is fixedly connected to the driving motor, and the main shaft of the driving motor is fixedly connected to the rubber tire wheel.

[0008] Preferably, the slide is detachably connected to a bracket, and a first hydraulic cylinder is installed on one side of the bracket. The first hydraulic cylinder is used to drive the slide rod to slide back and forth along the slide.

[0009] Preferably, the water jet cutter includes a slider, a water jet cutting head is mounted on the slider, a clearance groove is provided on one side of the slide, and the clearance groove is arranged corresponding to the water jet cutting head.

[0010] Preferably, the water jet cutter further comprises a mounting block which is detachably fixed in the slide groove, a second hydraulic cylinder being mounted on the mounting block, and a telescopic end of the second hydraulic cylinder being fixed to the slide block.

[0011] Preferably, a plurality of mounting holes are provided on one side of the sliding rod, each mounting hole is rotatably connected to the swing rod through a rotating shaft, an end face groove is provided on one side of the sliding rod, the end face groove is slidably connected to the touch block, a sliding hole is provided on one side of the end face groove, the sliding hole is slidably connected to the moving rod, a spring is fixedly connected between the bottom of the sliding hole and the moving rod, the moving rod is fixed to the touch block, the mounting hole is connected to the sliding hole, a plurality of racks are installed on the moving rod, a gear ring is installed on the rotating shaft, and the gear ring is meshed with the rack.

[0012] Preferably, a touch bar is installed on one side of the sliding bar.

[0013] Preferably, crushing teeth are arranged at intervals on one side of the sliding rod.

[0014] The beneficial effects of the present invention are as follows: the present invention drives the arc plate to move along the connecting rod through the guide block to realize layered cutting of the deformed section. During the cutting process, the sliding rod always provides supporting force to the deformed section. Under the supporting force of the sliding rod, the geology around the deformed section is supported and protected to prevent the surrounding geology from being deformed due to the cutting of the deformed section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a basic structural diagram of the present invention;

[0016] Figure 2 yes Figure 1 A magnified view of point A;

[0017] Figure 3 It is a structural diagram of the cutting components used together;

[0018] Figure 4 yes Figure 3 The enlarged view of M;

[0019] Figure 5 This is a basic structural diagram of the slider;

[0020] Figure 6 It is a schematic diagram of the working state of the slider;

[0021] Figure 7 yes Figure 6 The enlarged view at point N;

[0022] Figure 8This is a schematic diagram of the structure of the sliding rod facing the inner wall of the tunnel;

[0023] Figure 9 It is a schematic diagram of the connection structure between the lifter and the connecting rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and 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.

[0025] Example 1

[0026] like Figures 1-9 As shown, a water cutting device for removing deformed sections of hydraulic tunnels in this embodiment includes two cutting components, each of which includes a fixing device 1, and the fixing device 1 includes two clamping bases 19. A connecting rod 10 is fixedly connected between the two clamping bases 19, and a lifter 12 is installed between the connecting rod 10 and the arc plate 2. The lifter 12 slides back and forth along the connecting rod 10 through a driver.

[0027] The driver includes a split sleeve 13, which is slidably connected to the connecting rod 10. The split sleeve 13 is a sliding block with two sliding grooves on one side. The inner wall of the sliding groove is provided with a roller. The sliding grooves of the two sliding blocks are fixedly connected by bolts and then wrapped around the connecting rod 10 to form a sleeve connection, which is convenient for disassembly and sliding along the connecting rod 10. One side of the lifter 12 is fixedly connected to the driving motor 14. The main shaft of the driving motor 14 is fixedly connected to the rubber tire 15. Before installation, the rubber tire 15 is exhausted for easy installation. After installation, it is inflated so that the rubber tire 15 is squeezed into contact with the surface of the connecting rod 10, and the driving motor 14 drives the rubber tire wheel 15 to rotate, and the friction of the rubber tire wheel 15 enables it to slide back and forth on the connecting rod 10. The lifter 12 is a prior art. One end of the lifter 12 is fixedly connected to the split sliding sleeve 13, and under the action of the split sliding sleeve 13, it can slide back and forth along the connecting rod 10. The other end of the lifter 12 is fixedly connected to the arc plate 2 by a bolt, which is convenient for subsequent disassembly. The arc plate 2 can be gradually moved toward the inner wall of the tunnel 100 through the lifter 12. After cutting, the arc plate 2 is welded to the support ring 200 by overlapping with steel bars, and then the lifter 12 is removed.

[0028] Crushing teeth 312 are arranged at intervals on one side of the sliding rod 3. The crushing teeth 312 are made of hard alloy. On the one hand, the sliding rod 3 cooperates with the steel bars on the inner wall of the tunnel that have not been completely removed to provide a certain supporting force to avoid large-scale collapse. On the other hand, the sliding rod 3 moves back and forth on the same water cutting surface, cooperating with the crushing teeth 312 to squeeze some gravel to facilitate slag discharge.

[0029] Two slides 22 are installed on the curved plate 2, and each slide 22 is slidably connected to a slide rod 3. The two slide rods 3 are arranged in parallel. The slide 22 is detachably connected to a bracket 91. A first hydraulic cylinder 92 is installed on one side of the bracket 91. The telescopic end of the first hydraulic cylinder 92 is fixedly connected to the push rod 9. The two ends of the push rod 9 are detachably fixed to the slide rod 3. The first hydraulic cylinder 92 is used to drive the slide rod 3 to slide back and forth along the slide 22.

[0030] A chute 31 is provided on one side of the slide bar 3. A water jet cutter 4 is slidably connected to the chute 31. The water jet cutter 4 comprises a slider 41 and a mounting block 43. The slider 41 is mounted with a water jet cutting head 42 and a water supply pipe 40 for supplying water to the water jet cutting head 42. A clearance groove 311 is provided on one side of the chute 31. The clearance groove 311 is arranged corresponding to the water jet cutting head 42. The mounting block 43 is removably fixed within the chute 31. A second hydraulic cylinder 44 is mounted on the mounting block 43. The telescopic end of the second hydraulic cylinder 44 is fixed to the slider 41.

[0031] One side of the slide bar 3 is provided with multiple mounting holes 39. Each mounting hole 39 is rotatably connected to the swing bar 32 via a rotating shaft. A gear ring 38 is mounted on the rotating shaft. An end groove 33 is provided on one side of the slide bar 3. A contact block 34 is slidably connected to the end groove 33. A sliding hole is provided on one side of the end groove 33. A moving rod 35 is slidably connected to the sliding hole. A spring 36 is fixedly connected between the bottom of the sliding hole and the moving rod 35. The moving rod 35 is fixed to the contact block 34. The mounting holes 39 are connected to the sliding holes. Multiple racks 37 are mounted on the moving rod 35. The gear rings 38 mesh with the racks 37. A contact rod 310 is mounted on one side of the slide bar 3.

[0032] When removing the deformed section of a hydraulic tunnel using the water cutting device of this embodiment, first determine the position of the deformed section 300, and then find the support rings 200 of the hydraulic tunnel 100 on both sides of the deformed section 300. The support rings 200 are used to support the hydraulic tunnel 100 and are always present in the hydraulic tunnel 100. The support rings 200 are prior art and will not be described in detail here. Chisel away the rock and soil at the corresponding positions of the support rings 200 and the deformed section 300 to leave a mounting position for the clamping base 19, and clamp the clamping base 19 to the support ring 200. The two cutting assemblies are fixed to the two support rings 200, respectively. At the same time, the slide bars 3 of the two cutting assemblies are staggered. The slide bar 3 is moved forward by the first hydraulic cylinder 92 so that the slide bar 3 is located at the deformed section 300. Then, the second hydraulic cylinder 44 pushes the slider 41 to move back and forth, thereby cutting the deformed section 300 through the water jet cutting head 42. The driver can make the lifter 12 and its curved plate 2 slide together along the connecting rod 10, so that the entire surface of the deformed section 300 can be cut. The lifter 12 can make the curved plate 2 gradually move toward the inner wall of the tunnel 100, so as to achieve layered cutting of the deformed section 300. During the cutting process, the slide bar 3 always provides support for the deformed section 300. Under the support of the slide bar 3, the geology around the deformed section 300 is supported and protected to prevent the surrounding geology from being deformed due to the removal of the deformed section 300. In addition, during the movement of the curved plate 2, the slide bar 3 also moves. The crushing teeth 312 on one side of the slide bar 3 can generate squeezing force on the gravel, crushing large pieces of gravel, thereby preventing large pieces of gravel from being stuck between adjacent slide bars 3.

[0033] After the deformation section 300 is cut, the first hydraulic cylinder 92 causes the slide bar 3 to continue to move forward, and the corresponding contact block 34 contacts and squeezes the contact bar 310. The contact block 34 slides in the end face groove 33, pushing the moving bar 35 to move. During the movement of the moving bar 35, the meshing force between the gear ring 38 and the rack 37 causes the swing bar 32 to rotate, and the swing bar 32 extends to the outside of the mounting hole 39. At this time, Figure 2, insert the block 30 on one side of the slide bar 3 into the slot 101 supporting the hydraulic tunnel 100. The slot 101 is determined according to the position of the block 30, thereby fixing the position of the slide bar 3. Remove the bracket 91 and the first hydraulic cylinder 92, and at the same time remove the water cutter 4 and the lifter 12. Perform spray repair on the deformed section 300 after removal. During the spray repair, the curved plate 2, slide bar 3 and support ring 200 in this embodiment are connected together to play an overall reinforcement role. In this way, when spraying concrete, the curved plate 2 and slide bar 3 can support the inner wall of the hydraulic tunnel 100, playing a good auxiliary reinforcement role and preventing deformation in this area from occurring again. The expansion of the swing bar 32 can increase the support area of ​​the slide bar 3, further improving the support effect. During cutting, the swing bar 32 is retracted into the mounting hole 39 to prevent the swing bar 32 from getting stuck in the cut and broken gravel, indirectly improving the cutting effect.

Claims

1. A water cutting device for removing a deformed section of a hydraulic tunnel, characterized in that: The invention comprises two cutting assemblies, each of which comprises a fixing device (1), the fixing device (1) being mounted on a support ring (200) in a hydraulic tunnel (100), and the fixing device (1) being connected to a curved plate (2) via a lifter (12); Two slides (22) are installed on the curved plate (2), and a slide rod (3) is slidably connected in the slide rod (22). A slide groove (31) is provided on one side of the slide rod (3), and a water cutter (4) is slidably connected in the slide groove (31). The water cutter (4) slides back and forth in the slide groove (31) to cut the surface of the deformation section (300). The curved plate (2) is driven by the lifter (12) to move toward the inner wall of the hydraulic tunnel (100) to achieve layered cutting of the deformation section (300). During the cutting process, the slide rod (3) can provide supporting force for the deformation section (300).

2. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 1, characterized in that: The fixing device (1) comprises two clamping bases (19), a connecting rod (10) is fixedly connected between the two clamping bases (19), a lifter (12) is installed between the connecting rod (10) and the arc plate (2), and the lifter (12) slides back and forth along the connecting rod (10) through a driver.

3. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 2, characterized in that: The driver comprises a split sliding sleeve (13) which is slidably connected to the connecting rod (10); one side of the lifter (12) is fixedly connected to a driving motor (14); and a main shaft of the driving motor (14) is fixedly connected to a rubber tire wheel (15).

4. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 3, characterized in that: The slide seat (22) is detachably connected to a bracket (91), and a first hydraulic cylinder (92) is installed on one side of the bracket (91). The first hydraulic cylinder (92) is used to drive the slide rod (3) to slide back and forth along the slide seat (22).

5. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 1, characterized in that: The water cutter (4) comprises a slider (41) on which a water cutting head (42) is mounted. A clearance groove (311) is provided on one side of the slide groove (31), and the clearance groove (311) is arranged corresponding to the water cutting head (42).

6. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 5, characterized in that: The water cutter (4) further comprises a mounting block (43) which is detachably fixed in the slide groove (31). A second hydraulic cylinder (44) is mounted on the mounting block (43), and a telescopic end of the second hydraulic cylinder (44) is fixed to the slide block (41).

7. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 6, characterized in that: A plurality of mounting holes (39) are provided on one side of the slide bar (3), and each mounting hole (39) is rotatably connected to the swing bar (32) via a rotating shaft. An end face groove (33) is provided on one side of the slide bar (3), and a contact block (34) is slidably connected in the end face groove (33). A sliding hole is provided on one side of the end face groove (33), and a moving rod (35) is slidably connected in the sliding hole. A spring (36) is fixedly connected between the bottom of the sliding hole and the moving rod (35), and the moving rod (35) is fixed to the contact block (34). The mounting hole (39) is communicated with the sliding hole. A plurality of racks (37) are installed on the moving rod (35), and a gear ring (38) is installed on the rotating shaft. The gear ring (38) is meshed with the rack (37).

8. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 7, characterized in that: A touch rod (310) is installed on one side of the slide rod (3).

9. The water jet cutting device for removing a deformed section of a hydraulic tunnel according to claim 1, characterized in that: Crushing teeth (312) are arranged at intervals on one side of the sliding rod (3).

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