A chiseling device for repairing a disease of an already operated tunnel

Abstract

The application provides a chiseling device for repairing diseases of an operated tunnel, comprising a track flat car, a bearing base arranged on the track flat car, a chiseling traction mechanism arranged on the bearing base, a chiseling driven mechanism located at the side of the bearing base, and a chiseling operation unit respectively mounted on the chiseling traction mechanism and the chiseling driven mechanism. The application is designed for the working condition of the operated tunnel, the arch mounting device is transported to the disease section of the operated tunnel through the flat car, the chiseling traction mechanism, the chiseling operation unit and the chiseling driven support mechanism are cooperated to chisel along the tunnel wall, and the dust removal operation can cover the tunnel profile section, which greatly widens the working range of the operation, can be applied to the working condition of the short operation time of the operated tunnel, the existing tunnel building and the transportation limitation, solves the problems of transportation, contact line avoidance and mechanized chiseling, and meets the needs of efficient and high-quality chiseling for repairing the diseases of the operated tunnel section.

Description

Technical Field

[0001] This invention relates to the field of tunnel repair technology, and more specifically, to a roughening device for repairing defects in operational tunnels. Background Technology

[0002] With the continuous growth of the total mileage of railway tunnels in my country, defects in operational railway tunnels are becoming increasingly frequent, including cracking, spalling, mesh cracking, water leakage, and frost heave in the tunnel lining structure. These defects have seriously threatened the operational safety of trains.

[0003] To address tunnel structural defects, engineering departments often use simple scaffolding and machinery for repairs, with roughening being one of the most challenging procedures. Existing roughening methods in tunnel defect remediation generally fall into the following categories:

[0004] Manual roughening: This method uses pneumatic picks or handheld pneumatic roughening machines. The quality of manual roughening depends heavily on the worker's skill and experience, and it's prone to incomplete and uneven roughening, ultimately leading to quality problems such as cracks and peeling at the joint surface. Furthermore, manual roughening requires scaffolding, increasing the number of steps and the operational risk. The process is slow, inefficient, and takes up a lot of "maintenance windows" (maintenance windows). It also generates a large amount of dust and noise, which can harm workers. Moreover, the dust cannot be effectively collected, and it can potentially affect railway overhead contact lines and fiber optic cable conduits.

[0005] Hand-push or machine-mounted chiseling machines: These machines integrate multiple chiseling heads through a handcart or machine-mounted design, improving chiseling efficiency. However, they require close-range manual operation and can only chisel sidewalls. Furthermore, this close-range manual operation means workers are still exposed to chiseling pollutants, posing a health hazard, and also makes effective dust collection impossible.

[0006] Mechanized roughening: A roughening drill bit is mounted on the end of the robotic arm of a small excavator, and workers control the robotic arm from the cab to roughen the surface, further improving roughening efficiency and the working environment. However, this method cannot avoid the contact network and optical cables inside the tunnel walls, cannot fully achieve full-section mechanized construction, and cannot effectively control the impact of roughening dust on the contact network and optical cable conduits; therefore, efficiency still needs to be improved.

[0007] However, most existing tunnel arch installation equipment is designed for the tunnel construction phase and does not consider the actual working conditions in the repair of defects in already operational tunnels. Repair work on already operational tunnels faces numerous construction restrictions due to their operational nature. These restrictions mainly include the following aspects:

[0008] 1) The working time is short, only possible during tunnel operation windows (4-6 hours). After deducting time for getting on and off the line and preparation, the actual working time is less than 4 hours. Currently, in tunnel repair, due to the lack of suitable machinery, manual labor is still the main method, supplemented by simple tools. The roughening and installation of a 12m lining requires 7 operation windows and more than 10 people. Therefore, higher requirements are placed on work efficiency.

[0009] 2) Existing tunnel construction limitations: According to national standards, planning and electrification requirements, the top of currently operating tunnels is generally equipped with an overhead contact line, and lighting lines, dedicated cables and public network cables are installed on both sides of the tunnel. Due to stress requirements, the contact wires suspended on the overhead contact line are arranged in a zigzag pattern. During construction, it is necessary to avoid them; otherwise, equipment and personnel may be at risk of electric shock and damage to the lines during operation.

[0010] 3) Transportation restrictions: According to existing laws and regulations, maintenance equipment and tools can only be transported by qualified railway locomotives. The maintenance equipment and tools carried on the locomotive while it is in motion must meet the requirements of GB 146.1-2020 "Standard Gauge Railway Clearance Part 1: Locomotive and Rolling Stock Clearance" and must not exceed the transportation restrictions.

[0011] Therefore, under the aforementioned constraints, how to improve the efficiency and quality of arch frame installation during the repair of defects in operational tunnels, reduce labor intensity, ensure construction safety, and solve problems related to transportation, contact wire avoidance, and mechanized roughening are urgent issues that need to be addressed by those skilled in the art. Summary of the Invention

[0012] This invention provides a chiseling device for repairing defects in operational tunnels, comprising a rail flatcar, a support base mounted on the rail flatcar, a chiseling traction mechanism mounted on the support base, a chiseling driven mechanism located on the side of the support base, and chiseling operation units respectively mounted on the chiseling traction mechanism and the chiseling driven mechanism; a first sliding member is welded to one side of the support base along the displacement direction of the rail flatcar, and the chiseling driven mechanism is slidably connected to the first sliding member; a second sliding member is welded to the center of the top surface of the support base along the displacement direction of the rail flatcar, and the chiseling traction mechanism is slidably connected to the second sliding member.

[0013] Optionally, the chiseling traction mechanism includes a base, a folding arm, a sliding assembly, a folding arm drive, a chiseling traction drive, and a first chiseling gripper. The base is provided with a sliding assembly, which is slidably connected to the first sliding component. The sliding assembly is also equipped with a chiseling traction drive and a folding arm drive. The fixed end of the chiseling traction drive is fixedly installed on the sliding assembly, and the fixed end of the folding arm drive is fixedly installed on the sliding assembly. The drive end of the folding arm drive is fixedly connected to one end of the folding arm. A first chiseling gripper is installed on the end of the folding arm away from the folding arm drive. The first chiseling gripper is used to grasp the chiseling operation unit, and the chiseling operation unit is connected to the traction end of the chiseling traction drive.

[0014] Optionally, the folding arm drive, folding arm, and first chiseling gripper are provided in two or more sets with one-to-one correspondence, and several connecting rods are connected between adjacent sets of folding arms at intervals. Each connecting rod is equipped with a guide wheel. The chiseling traction drive is a winch, and the traction end of the winch passes through several guide wheels in sequence and is connected to the traction pulley seat set at the top of the chiseling machine in the chiseling operation unit.

[0015] Optionally, a number of rolling elements spaced apart from each other are provided at the bottom of the base. The rolling elements are arranged in parallel to each other to form a first sliding structure. The first sliding element includes a base plate and a rack disposed on the base plate. The sliding assembly includes a driving element and a gear connected to the driving end of the driving element. The gear and the rack mesh with each other, and the fixed end of the driving element is fixedly connected to the base.

[0016] Optionally, the rolling element is configured as a threaded shaft type roller structure.

[0017] Optionally, the folding arm of a single piece includes a first telescopic arm and a second telescopic arm. The end of the first telescopic arm away from the second telescopic arm is hinged to the folding arm drive component, and the end of the second telescopic arm away from the first telescopic arm is connected to the first chisel gripper. A telescopic cylinder is also hinged between the first telescopic arm and the second telescopic arm, and the angle formed between the first telescopic arm and the second telescopic arm is controlled by the extension or retraction of the telescopic cylinder.

[0018] Optionally, the first chiseling gripper includes a gripper base, a gripper, and a gripper drive; the gripper base is hinged to one end of both the limiting sleeve and the gripper drive; the other end of the gripper drive is hinged to the end of both the limiting sleeve and the gripper; and the gripper is hinged to both the limiting sleeve and the gripper base.

[0019] Optionally, the chiseling driven mechanism includes a sliding base, a support frame, a second chiseling gripper, and driven wheels; one end of the sliding base is slidably connected to the first sliding member, and the other end of the sliding base is fixedly connected to the support frame; the support frame includes a first crossbeam, a vertical beam, and a second crossbeam connected in sequence, the end of the first crossbeam away from the vertical beam is connected to the sliding base, and at least one set of driven wheels is connected to the lower end face of the second crossbeam to facilitate displacement within the tunnel; a second chiseling gripper is installed on the extended end of the second crossbeam.

[0020] Optionally, the chiseling operation unit includes a chiseling machine and an arc-shaped frame; the chiseling machine includes a fixed base and a plurality of chiseling bodies disposed on the fixed base, and the fixed base is provided with climbing wheels for sliding connection with the arc-shaped frame; the arc-shaped frame is configured as a circular tube frame structure that conforms to the contour of the tunnel, and the arc-shaped frame is interconnected with the second chiseling gripper so as to move along the tunnel wall under the action of the second chiseling gripper.

[0021] Optionally, a traction pulley seat and a water mist dust suppression nozzle are also provided on the fixed base. The traction pulley seat and the water mist dust suppression nozzle are respectively set on the two end faces of the fixed base along the direction of displacement of the chisel machine on the arc frame.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) This invention is designed for the working conditions of operating tunnels. The arch frame installation device is transported to the defective section of the operating tunnel by a flatbed truck. The chiseling traction mechanism, chiseling operation unit and chiseling driven support mechanism work together to chisel and remove dust along the tunnel wall. The working range can cover the tunnel outline section, which greatly expands the working range. It can be applied to the working conditions of the operating tunnel with short working time, existing tunnel structure and transportation restrictions. It solves the problems of transportation, contact line avoidance and mechanized chiseling, and meets the needs of efficient and high-quality chiseling for the repair of defects in the section of the operating tunnel.

[0024] (2) The chiseling operation unit in this invention is designed as an arc surface according to the tunnel wall, which can adapt to the section above the tunnel trench cover plate, with a wider coverage and more thorough chiseling.

[0025] (3) In this invention, the chiseling traction mechanism and the chiseling driven support mechanism clamp and fix the chiseling operation unit, so that the chiseling operation unit operates stably and more chiseling machines can be arranged. After the operation of the operation unit is completed in the arc surface, the chiseling traction mechanism and the chiseling driven support mechanism can be controlled to lift or move to the next operation, thereby further improving the chiseling operation efficiency and chiseling quality.

[0026] (4) The chiseling traction mechanism, chiseling operation unit and chiseling driven support mechanism in this invention work together to chisel along the tunnel wall and complete the bypassing of contact wires, cables and buildings in the tunnel.

[0027] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0029] Figure 1 This is an isometric schematic diagram of a chiseling device for repairing defects in an operational tunnel according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 Axonometric schematic diagram of the traction mechanism for chipping and burring (the guide rail is only partially shown);

[0031] Figure 3 for Figure 2 Axonometric schematic diagram of the first chiseling gripper in the middle;

[0032] Figure 4 for Figure 1 Schematic diagram of the driven support mechanism for the roughening process (the C-shaped groove is only partially shown);

[0033] Figure 5 for Figure 1 Schematic diagram of the roughening operation unit (the arc-shaped frame is only partially shown);

[0034] Figure 6 yes Figure 5 Axonometric view of a chiseling machine.

[0035] Figure 7 This is a schematic diagram of a chiseling device for repairing defects in an operational tunnel working inside the tunnel, according to an embodiment of the present invention.

[0036] in:

[0037] 1. Chipping operation unit; 1.1. Chipping machine; 1.1.1. Fixed base; 1.1.2. Chipping body; 1.2. Arc-shaped frame; 1.3. Traction pulley seat; 1.4. Climbing wheel; 1.5. Water mist dust suppression nozzle.

[0038] 2. Chipping driven mechanism, 2.1. Sliding base, 2.2. Support frame, 2.3. Driven traveling wheel, 2.4. Second chiseling gripper;

[0039] 3. Chipping traction mechanism, 3.1. Base, 3.1.1. Roller, 3.2. Folding arm, 3.3. Sliding assembly, 3.4. Swing cylinder, 3.5. Winch, 3.6. First chiseling gripper, 3.6.1. Gripper seat, 3.6.2. Gripper, 3.6.3. Clamping cylinder;

[0040] 4. Supporting base; 4.1. C-shaped groove; 4.2. Sliding rail;

[0041] 5. Rail flatbed cart. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of the present invention clearer and easier to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the accompanying drawings of the present invention are all in a simplified form and use non-precise proportions, and are only used to facilitate and clearly assist in illustrating the implementation of the present invention; the "several" mentioned in the present invention are not limited to the specific number shown in the examples in the accompanying drawings; the orientations or positional relationships indicated by terms such as "front," "middle," "rear," "left," "right," "up," "down," "top," "bottom," and "center" mentioned in the present invention are all based on the orientations or positional relationships shown in the accompanying drawings of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, nor should they be construed as limitations on the present invention.

[0043] This embodiment:

[0044] See Figures 1 to 6 As shown, a chiseling device for repairing defects in an operational tunnel includes a rail flatbed 5 for transport under road conditions, a support base 4 mounted on the rail flatbed 5, a chiseling traction mechanism 3 mounted on the support base 4, a chiseling driven mechanism 2 located on the side of the support base 4, and a chiseling operation unit 1 that limits and supports the chiseling traction mechanism 3 and the chiseling driven mechanism 2. Preferably, the rail flatbed 5 is existing technology.

[0045] The bearing base 4 is the bearing unit of the chiseling device. The bearing base 4 is mounted on the rail flatbed car 5 and enters and exits the tunnel together with the rail flatbed car 5.

[0046] Optionally, a C-shaped groove 4.1, arranged along the displacement direction of the track flatbed 5, is welded to one side of the supporting base 4, and the chiseling driven mechanism 2 is slidably connected to the C-shaped groove 4.1. Preferably, in order to limit the displacement range of the chiseling driven mechanism 2 on the C-shaped groove 4.1, two first limiting structures are also provided on the C-shaped groove 4.1, which are spaced apart from each other.

[0047] Optionally, a sliding rail 4.2, arranged along the displacement direction of the track flatbed 5, is welded to the center of the top surface of the supporting base 4. The chiseling traction mechanism 3 is slidably connected to the sliding rail 4.2. Preferably, to limit the displacement range of the chiseling traction mechanism 3 on the sliding rail 4.2, two second limiting structures spaced apart from each other are also provided on the sliding rail 4.2.

[0048] The chiseling traction mechanism 3 is a position adjustment unit for the chiseling device. The chiseling traction mechanism 3 includes a base 3.1, a folding arm 3.2, a sliding assembly 3.3, a swing cylinder 3.4, a winch 3.5, and a first chiseling gripper 3.6.

[0049] The base 3.1 is the main body of the chiseling traction mechanism 3, and a sliding component 3.3 is provided on the base 3.1. The sliding component 3.3 is slidably connected to the sliding rail 4.2 to realize the displacement of the chiseling traction mechanism 3 on the sliding rail 4.2. A winch 3.5 and a swing cylinder 3.4 are also installed on the sliding component 3.3. The fixed end of the winch 3.5 is fixedly installed on the sliding component 3.3, and the fixed end of the swing cylinder 3.4 is fixedly installed on the sliding component 3.3 so that they can move synchronously on the sliding rail 4.2 with the sliding component 3.3.

[0050] The drive end of the swing cylinder 3.4 is fixedly connected to one end of the folding arm 3.2 via a connecting flange, and is used to drive the folding arm 3.2 to swing relative to the sliding assembly 3.3;

[0051] A first chiseling gripper 3.6 is installed on the end of the folding arm 3.2 away from the swing cylinder 3.4. The first chiseling gripper 3.6 is used to grab the chiseling operation unit 1, and the chiseling operation unit 1 is connected to the traction end (i.e. the wire rope end of the winch) of the winch 3.5. The chiseling operation unit 1 is tractioned by the winch 3.5 to carry out the chiseling operation. When the chiseling machine 1.1 completes the chiseling in this position, the folding arm 3.2 and the swing cylinder 3.4 are adjusted to lift and transport the chiseling operation unit and the arch frame along the track space formed by the arch frame support 3.6 and the tunnel wall to the top of the tunnel to complete the avoidance of the contact line and the building. Then the winch 3.5 drives the chiseling machine 1.1 to work. After the operation of this section is completed, the sliding component 3.3 is used to transport it to the next working position. Preferably, to ensure the stability of the first chiseling gripper 3.6 when gripping the chiseling operation unit, the swing cylinder 3.4, the folding arm 3.2 and the first chiseling gripper 3.6 are provided with two or more sets of corresponding components, and several connecting rods are connected between adjacent sets of folding arms 3.2 at intervals. Each connecting rod is equipped with a guide wheel. The traction end of the winch 3.5 passes around several guide wheels in sequence and is connected to the traction pulley seat 1.3 located at the top of the chiseling machine 1.1 in the chiseling operation unit 1, so as to traction the chiseling machine 1.1 to slide up and down in the chiseling operation unit 1 to perform chiseling operations.

[0052] Optionally, to achieve displacement of the sliding component 3.3 on the sliding rail 4.2, a plurality of rollers 3.1.1 spaced apart from each other are provided at the bottom of the base 3.1. The rollers 3.1.1 are arranged side by side to form a first sliding structure; the sliding rail 4.2 is preferably configured to include a base plate and a rack disposed on the base plate; the sliding component 3.3 includes a driving member and a gear connected to the driving end of the driving member, the gear meshing with the rack, and the fixed end of the driving member being fixedly connected to the base 3.1 to drive the gear to move on the rack. Preferably, the rollers 3.1.1 are preferably configured as threaded shaft rollers.

[0053] Optionally, the folding arm 3.2 is the main actuator of the chiseling traction mechanism 3. The main body is a hinged telescopic arm, and its end is hinged to one end of the swing cylinder 3.4 through a flange to transmit the swinging action of the swing cylinder 3.4. The other end of the folding arm 3.2 is bolted to the first chiseling gripper 3.6 through a mounting plate, and the first chiseling gripper 3.6 is pressed tightly against the tunnel wall to restrain the swaying of the chiseling operation unit 1 and to provide stable support for the chiseling operation. A guide wheel is also provided in the middle part of the folding arm 3.2. The wire rope of the winch 3.5 is guided by the guide wheel from the first chiseling gripper 3.6 into the chiseling operation unit 1 and connected to the traction pulley seat 1.3 set at the top of the chiseling machine 1.1 in the chiseling operation unit 1 to pull the chiseling machine 1.1 to perform up and down chiseling operations. Preferably, the folding arm 3.2 includes a first telescopic arm and a second telescopic arm, which are hinged together to form an L-shaped structure. The end of the first telescopic arm away from the second telescopic arm is hinged to the swing cylinder 3.4 via a flange, and the end of the second telescopic arm away from the first telescopic arm is connected to the first chisel gripper 3.6. A telescopic cylinder is also hinged between the first and second telescopic arms. The extension or retraction of the telescopic cylinder controls the angle between the first and second telescopic arms to drive the second telescopic arm to swing relative to the first telescopic arm.

[0054] Optionally, the first chiseling gripper 3.6 is a limiting and fixing mechanism of the chiseling traction mechanism 3. The first chiseling gripper 3.6 includes a gripper base 3.6.1, a gripper 3.6.2, and a clamping cylinder 3.6.3. The lower end of the gripper base 3.6.1 is hinged to the limiting sleeve and the clamping cylinder 3.6.3 respectively by a pin. The other end of the clamping cylinder 3.6.3 is hinged to the end of the limiting sleeve and the gripper 3.6.2 respectively by a pin. The middle end of the gripper 3.6.2 is hinged to the upper end of the limiting sleeve and the gripper base 3.6.1 respectively by a pin. By adjusting the stroke of the clamping cylinder 3.6.3, the gripper 3.6.2 can rotate around the middle end to cooperate with the gripper base 3.6.1 to complete the limiting and fixing. Preferably, the two first chiseling grippers 3.6, which are respectively installed on the two folding arms 3.2, are symmetrically arranged with their grippers 3.6.2 close to each other, so that the chiseling operation unit 1 can be stably gripped by the two grippers 3.6.2 simultaneously.

[0055] The chiseling driven mechanism 2 is an auxiliary support unit for the chiseling device. The chiseling driven mechanism 2 includes a sliding base 2.1, a support frame 2.2, a second chiseling gripper 2.4, and a driven traveling wheel 2.3.

[0056] One end of the sliding base 2.1 is slidably connected to the C-shaped slide groove 4.1, and the other end of the sliding base 2.1 is fixedly connected to the support frame 2.2;

[0057] The support frame 2.2 includes a first crossbeam, a vertical beam, and a second crossbeam connected in sequence to each other. The first crossbeam, the vertical beam, and the second crossbeam are connected in sequence to form a Z-shaped structure. The end of the first crossbeam away from the vertical beam is connected to the sliding base 2.1. At least one set of driven wheels 2.3 are connected to the lower end face of the second crossbeam to facilitate displacement within the tunnel. A second chiseling gripper 2.4 is installed on the extended end of the second crossbeam to facilitate interconnection with the chiseling operation unit 1.

[0058] After the chiseling traction mechanism 3 completes the gripping and fixing of the chiseling work unit 1, the chiseling driven mechanism 2 is slid to the position of the chiseling work unit 1. The second chiseling gripper 2.4 is adjusted to fix the lower end of the chiseling work unit 1, and the bottom driven wheels 2.3 are adjusted so that they can roll flexibly on the trench cover plate, thus completing the auxiliary support for the chiseling work unit 1. Preferably, the second chiseling gripper 2.4 has the same structure as the first chiseling gripper 3.6; the support frame 2.3, the driven wheels 2.3 and the second chiseling gripper 2.4 are provided with at least two sets of corresponding configurations, and at least one reinforcing support is connected to each other on two adjacent support frames 2.3. The two adjacent second chiseling grippers 2.4 are symmetrically arranged with their grippers close to each other, so that the chiseling work unit 1 can be stably gripped by the two grippers simultaneously.

[0059] The chiseling operation unit 1 is the main execution unit of the chiseling device. The chiseling operation unit 1 includes a chiseling machine 1.1, an arc-shaped frame 1.2, a traction pulley seat 1.3, a climbing wheel 1.4, and a water mist dust suppression nozzle 1.5.

[0060] The chiseling machine 1.1 consists of several chiseling bodies 1.1.2 and a fixed base 1.1.1. The chiseling body 1.1.2 is an impact component with a certain stroke. Under the action of an external power source, the top chiseling head performs a reciprocating piston impact operation to chisel the tunnel wall. Specifically, the fixed base 1.1.1 and the non-working end of the chiseling body 1.1.2 are fastened together with bolts. The fixed base 1.1.1 is also equipped with a traction pulley seat 1.3 and a water mist dust suppression nozzle 1.5. The traction pulley seat 1.3 and the water mist dust suppression nozzle 1.5 are respectively set on the two end faces of the fixed base 1.1.1 along the direction of displacement of the chiseling machine 1.1 on the arc frame 1.2.

[0061] The climbing wheel 1.4 is connected to the fixed base 1.1.1, and the outer edge of the climbing wheel 1.4 is tangent to the outer circular tube of the arc frame 1.2. The climbing wheel 1.4 can slide up and down along the outer circular tube of the arc frame 1.2 under the action of external force.

[0062] The arc-shaped frame 1.2 is a circular tube frame structure that conforms to the contour of the tunnel, and the arc-shaped frame 1.2 is connected to the second chiseling gripper 2.4 so that the arc-shaped frame 1.2 can move along the tunnel wall under the action of the second chiseling gripper 2.4.

[0063] Under the traction of the winch wire rope, the two side climbing wheels 1.4 of the chipping machine 1.1 move up and down along the arc frame 1.2 to complete the chipping operation and dust suppression within the arc frame 1.2. After the chipping operation unit 1 is moved to the working position and fixed reliably under the action of the chipping gripper, the winch wire rope pulls the chipping machine 1 to drive the two side climbing wheels 1.4 to roll up and down within the arc frame 1.2, thereby realizing the chipping operation of the chipping machine 1 within the arc frame 1.2.

[0064] Optionally, a space is provided at the bottom of the fixing seat 1.1.1 to facilitate the passage of the pipeline of the chisel body 1.1.2.

[0065] Optionally, a cover plate is provided on the top of the mounting base 1.1.1 to facilitate the chipping and impact operation.

[0066] Optionally, clamping plates are also provided on both sides of the interior of the fixing seat 1.1.1, which are used to clamp and constrain several chisel bodies 1.1.2 by bolts.

[0067] Optionally, a bearing seat is also provided on the fixed seat 1.1.1, and the bearing seat is connected to the climbing wheel 1.4 by a pin.

[0068] See Figure 7As shown, the specific process of applying the chiseling device for repairing defects in an operational tunnel provided by this invention to achieve chiseling installation is as follows:

[0069] 1) After being transported to the site of the defect by the rail flatcar 5, the chiseling traction mechanism 3 is controlled to adjust the stroke of the folding arm 2.2 to place the chiseling operation unit 1 in the second chiseling gripper 2.4 to grip and hold it tightly against the tunnel wall to complete the upper fixation of the chiseling operation unit 1. Then, the chiseling driven mechanism 2 is controlled to slide to the position of the chiseling operation unit 1, the second chiseling gripper 2.4 is adjusted to fix the lower end of the chiseling operation unit 1, and the bottom driven wheels 2.3 are adjusted so that they can roll flexibly on the trench cover plate to complete the auxiliary support for the chiseling operation unit 1.

[0070] 2) The winch 3.5 is then used to connect with the chisel machine 1.1. The chisel machine 1.1 slides up and down in the chisel work unit 1 to perform chisel work. When the chisel machine 1.1 completes the chisel work in this position, the folding arm 3.2 and the swing cylinder 3.4 are adjusted to lift and transport the chisel work unit to the top of the tunnel along the track space formed by the first chisel gripper 3.6 and the tunnel wall. This completes the avoidance of the contact line and the building. The winch 3.5 is then used to drive the chisel machine 1.1 to work. After the work on this section is completed, the sliding component 3.3 is used to transport it to the next working position until the chisel work of the entire contour is completed.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A chiseling device for repairing a disease of an operated tunnel, characterized in that, The tunnel chiseling device comprises a track flat car (5), a bearing base (4) arranged on the track flat car (5), a chiseling traction mechanism (3) arranged on the bearing base (4), a chiseling driven mechanism (2) located at the side of the bearing base (4), and a chiseling operation unit (1) respectively mounted on the chiseling traction mechanism (3) and the chiseling driven mechanism (2); The chiseling operation unit (1) comprises a chiseling machine (1.1) and an arc-shaped frame (1.2); the arc-shaped frame (1.2) is arranged as a circular pipe frame structure matched with the tunnel contour, and the arc-shaped frame (1.2) is connected with the second chiseling gripper (2.4) to move along the tunnel wall under the action of the second chiseling gripper (2.4); A first sliding part arranged along the displacement direction of the track flat car (5) is welded on one side of the bearing base (4), and the chiseling driven mechanism (2) is slidably connected with the first sliding part; A second sliding part arranged along the displacement direction of the track flat car (5) is welded on the center of the top end surface of the bearing base (4), and the chiseling traction mechanism (3) is slidably connected with the second sliding part; The chiseling traction mechanism (3) comprises a base (3.1), a folding arm (3.2), a sliding assembly (3.3), a folding arm driving part, a chiseling traction driving part and a first chiseling gripper (3.6); The base (3.1) is provided with the sliding assembly (3.3), the sliding assembly (3.3) is slidably connected with the first sliding part, and the chiseling traction driving part and the folding arm driving part are further mounted on the sliding assembly (3.3); the fixed end of the chiseling traction driving part is fixedly mounted on the sliding assembly (3.3), and the fixed end of the folding arm driving part is fixedly mounted on the sliding assembly (3.3); The driving end of the folding arm driving part is fixedly connected with one end of the folding arm (3.2); the folding arm driving part is arranged as a swing cylinder (3.4); The first chiseling gripper (3.6) is mounted on the end of the folding arm (3.2) away from the folding arm driving part, and the first chiseling gripper (3.6) is used for grabbing the chiseling operation unit (1); the chiseling operation unit (1) is connected with the traction end of the chiseling traction driving part; The chiseling operation unit is lifted and transported along the track space formed by the first chiseling gripper (3.6) and the tunnel wall to the top of the tunnel by adjusting the folding arm (3.2) and the swing cylinder (3.4) to complete the avoidance of the contact line and the building.

2. The undercoring device for operational tunnel disease repair according to claim 1, wherein The folding arm driving part, the folding arm (3.2) and the first chiseling gripper (3.6) are provided with two or more groups of corresponding setting, and a plurality of connection rods are connected between the adjacent two groups of folding arms (3.2) and arranged at intervals; each connection rod is provided with a guide wheel; The chiseling traction driving part is arranged as a winch, and the traction end of the winch passes through a plurality of guide wheels in sequence and is connected with a traction pulley seat (1.3) arranged at the top end of the chiseling machine (1.1) in the chiseling operation unit (1).

3. The undercoring device for operational tunnel disease repair according to claim 2, wherein A plurality of rolling elements are further arranged at the bottom of the base (3.1) and arranged at intervals; the plurality of rolling elements are arranged side by side to form a first sliding structure; The first sliding part comprises a bottom plate and a rack arranged on the bottom plate. The sliding assembly (3.3) comprises a driving member and a gear wheel connected with the driving end of the driving member, the gear wheel is engaged with the rack, and the fixed end of the driving member is fixedly connected with the base (3.1).

4. The undercoring device for operational tunnel disease repair according to claim 3, wherein The rolling member is arranged in a threaded shaft type roller structure.

5. The undercoring device for operational tunnel disease repair of claim 2, wherein, The single-piece folding arm (3.2) comprises a first telescopic arm and a second telescopic arm, the end of the first telescopic arm away from the second telescopic arm is hingedly connected with the folding arm driving member, the end of the second telescopic arm away from the first telescopic arm is connected with the first chiseling gripper (3.6), and a telescopic cylinder is further hingedly connected between the first telescopic arm and the second telescopic arm, and the size of the included angle formed between the first telescopic arm and the second telescopic arm is controlled by the extension or retraction of the telescopic cylinder.

6. The undercoring device for operational tunnel disease repair according to claim 5, wherein The first chiseling gripper (3.6) comprises a gripper base (3.6.1), a gripper (3.6.2) and a gripper driving member; The gripper base (3.6.1) is hingedly connected with the limiting sleeve and one end of the gripper driving member; The other end of the gripper driving member is hingedly connected with the limiting sleeve and the end of the gripper (3.6.2); The gripper (3.6.2) is hingedly connected with the limiting sleeve and the gripper base (3.6.1).

7. The undercoring device for repairing a tunnel disease of a completed tunnel according to any one of claims 1 to 6, characterized by The chiseling driven mechanism (2) comprises a sliding base (2.1), a support frame (2.2), a second chiseling gripper (2.4) and driven walking wheels (2.3); One end of the sliding base (2.1) is slidably connected with the first sliding member, and the other end of the sliding base (2.1) is fixedly connected with the support frame (2.2); The support frame (2.2) comprises a first cross beam, a vertical beam and a second cross beam connected in sequence, one end of the first cross beam away from the vertical beam is connected with the sliding base (2.1), at least one set of driven walking wheels (2.3) are connected on the lower end surface of the second cross beam, so as to displace in the tunnel; and the second chiseling gripper (2.4) is installed on the extended end of the second cross beam.

8. The undercoring device for operational tunnel disease repair according to claim 7, wherein The chiseling machine (1.1) comprises a fixed base (1.1.1) and a plurality of chiseling bodies (1.1.2) arranged on the fixed base (1.1.1), and a climbing wheel (1.4) for sliding connection with the arc-shaped frame (1.2) is arranged on the fixed base (1.1.1).

9. The back chipping device for operational tunnel disease repair of claim 8, wherein, A traction pulley base (1.3) and a water mist dust spraying head (1.5) are further arranged on the fixed base (1.1.1), and the traction pulley base (1.3) and the water mist dust spraying head (1.5) are arranged on the two end surfaces of the fixed base (1.1.1) along the displacement direction of the chiseling machine (1.1) on the arc-shaped frame (1.2).

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