Dam face underwater cutting device

Abstract

The utility model provides a dam face underwater cutting device which comprises a frame, walking wheels are arranged on the frame, at least one set of walking wheels are driven by a walking motor, a buoy is arranged on the frame, a rotational flow suction cup is arranged at the bottom of the frame, a cutting mechanism is arranged on the frame, and the cutting mechanism comprises a guide rail which is arranged in an inclined mode. Sliding blocks matched with the guide rails are arranged at the bottom of the cutting frame, the cutting frame is pushed by a pushing mechanism to move along the guide rails, a cutting motor is arranged at one end of the cutting frame, an underwater rotary saw is arranged at the output end of the cutting motor, and an opening allowing the guide rails to penetrate out is formed in the bottom of the frame. After the device is transported to an operation range through an underwater operation platform, underwater dam face cutting can be carried out automatically, the cutting efficiency is improved, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of underwater dam repair equipment, in particular to an underwater dam surface cutting device. Background Art

[0002] After a reservoir dam has been in use for a period of time, due to the scouring of water flow and the influence of its own weight, cracks may appear in the part of the dam body immersed in water, causing leakage. Severe leakage will have a serious impact on the safety of the dam, so it is necessary to repair the cracks.

[0003] The general process for repairing underwater dam surface cracks is to use cutting equipment to cut grooves along the cracks and then grouting. Existing repair operations generally require operators to dive underwater to perform operations, which has high requirements for the diving ability and cutting operations of the operators, increases the difficulty of operation, and makes the repair more difficult. The development of deep-water operation platforms can realize the transportation of operation tools to designated repair areas, which is conducive to the automation of underwater repair operations, but in the prior art, there is no public underwater cutting operation tool for dam surfaces. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an underwater dam surface cutting device, which can automatically perform underwater dam surface cutting after being transported to the operating range by an underwater operating platform, thereby improving the cutting efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an underwater cutting device for dam surface, including a frame, the frame is provided with running wheels, at least one group of running wheels is driven by a running motor, the frame is provided with a buoy, the bottom of the frame is provided with a vortex suction cup, the frame is provided with a cutting mechanism, the cutting mechanism includes an inclined guide rail, a slider cooperating with the guide rail is provided at the bottom of the cutting frame, the cutting frame is pushed to move along the guide rail by a propulsion mechanism, a cutting motor is provided at one end of the cutting frame, an underwater disc saw is provided at the output end of the cutting motor, and an opening for the guide rail to pass through is provided at the bottom of the frame.

[0006] In a preferred solution, the propulsion mechanism includes a rack arranged on one side of the guide rail, a driving motor is provided on the cutting frame, and a gear meshing with the rack is provided at the output end of the driving motor.

[0007] In a preferred embodiment, the bottom of the guide rail is hinged to the frame through a hinge, a telescopic rod is provided at the tail end of the guide rail, the telescopic end of the telescopic rod is hinged to the guide rail through a first hinge seat, and the lower end of the telescopic rod is hinged to the frame through a second hinge seat.

[0008] In a preferred solution, the swirl suction cup includes a suction cup shell, and suction cup blades are arranged in the suction cup shell, and the suction cup blades are driven by an underwater motor.

[0009] In a preferred solution, a buoy frame is provided on the frame, and the buoy is fixed to the buoy frame by a "U"-shaped clamping plate and bolts.

[0010] The utility model provides an underwater cutting device for dam surface. The device cooperates with the working platform and can move along the underwater working area of ​​the dam. The underwater disc saw is used to cut the crack position into a groove, which is convenient for the subsequent grouting process. The device can realize automatic cutting of the underwater dam surface without the need for operators to dive for operation, which reduces the difficulty of operation, improves the cutting efficiency, and is conducive to the repair of the underwater dam surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a bottom view of the utility model;

[0014] Figure 3 is a schematic diagram of the structure of the cutting mechanism;

[0015] Figure 4 It is a structural schematic diagram of the cutting mechanism from another angle;

[0016] Figure 5 It is a schematic diagram of the structure of the swirl suction cup;

[0017] In the figure: frame 1, walking wheel 2, walking motor 3, buoy 4, swirl suction cup 5, guide rail 6, cutting frame 7, slide block 8, cutting motor 9, underwater disc saw 10, rack 11, drive motor 12, gear 13, telescopic rod 14, first articulated seat 15, second articulated seat 16, "U"-shaped card plate 17, opening 101, buoy frame 102, suction cup shell 501, blade 502, underwater motor 503. DETAILED DESCRIPTION

[0018] like Figures 1 to 5 As shown, an underwater cutting device for a dam surface includes a frame 1, on which are provided running wheels 2, at least one group of running wheels 2 being driven by a running motor 3. In the present embodiment, four groups of running wheels 2 are provided, of which the two groups of running wheels 2 at the front end are driven by the running motor 3, which are front-wheel drive.

[0019] The frame 1 is provided with a buoy 4, so that the entire device is in a buoyancy balance state underwater, which is convenient for it to move along the wall of the vertical dam. In this embodiment, the frame 1 is provided with a buoy frame 102, and the buoy 4 is fixed to the buoy frame 102 by a "U"-shaped clamping plate 17 and bolts.

[0020] A swirl suction cup 5 is provided at the bottom of the frame 1. The swirl suction cup 5 is a non-contact suction cup. The specific structure is as follows: Figure 5 As shown, it includes a suction cup housing 501, and a suction cup blade 502 is arranged inside the suction cup housing 501, and the suction cup blade 502 is driven by an underwater motor 503. The basic principle is that the suction cup blade 502 is driven by the underwater motor 503 to stir the water flow inside the suction cup housing 501, and accelerate the water flow inside the suction cup housing 501 to rotate at a high speed with the central axis of the suction cup blade as the axis. According to the Bernoulli principle, the water flow velocity inside the suction cup housing 501 is large, while the water flow velocity outside the suction cup housing 501 is small. The part with large flow velocity has large pressure, and a pressure difference is formed on both sides of the suction cup, thereby generating suction.

[0021] A cutting mechanism is provided on the frame 1, and the cutting mechanism includes an inclined guide rail 6. A slider 8 cooperating with the guide rail 6 is provided at the bottom of the cutting frame 7. The cutting frame 7 is pushed to move along the guide rail 6 by a propulsion mechanism. A cutting motor 9 is provided at one end of the cutting frame 7, and an underwater disc saw 10 is provided at the output end of the cutting motor 9. An opening 101 for the guide rail 6 to pass through is provided at the bottom of the frame 1.

[0022] The propulsion mechanism can be an electric push rod or the like for propulsion. In this embodiment, the propulsion mechanism includes a rack 11 arranged on one side of the guide rail 6, a driving motor 12 is arranged on the cutting frame 7, and a gear 13 meshing with the rack 11 is arranged at the output end of the driving motor 12. The gear 13 is driven to rotate by the driving motor 12, and the cutting frame 7 moves along the guide rail 6 due to the meshing of the gear 13 and the rack 11. In practical application, the cutting depth needs to be ≥2cm, and the feeding is carried out downward along the slope of the guide rail 6 by the propulsion mechanism, so as to facilitate the control of the feeding depth.

[0023] Preferably, the bottom of the guide rail 6 is hinged to the frame 1 via a hinge, and the hinge is arranged in the middle of the guide rail 6 or in the middle near the underwater disk saw 10, so that the guide rail 6 can rotate along the hinge position to facilitate the adjustment of the height of the underwater disk saw 10.

[0024] A telescopic rod 14 is provided at the rear end of the guide rail 6. The telescopic rod 14 can be an electric telescopic rod. The telescopic end of the telescopic rod 14 is hinged to the guide rail 6 through a first hinge seat 15, and the lower end of the telescopic rod 14 is hinged to the frame 1 through a second hinge seat 16. Specifically, the first hinge seat 15 is arranged at the bottom of the guide rail 6, and the second hinge seat 16 is arranged on the frame 1. Both ends of the telescopic rod 14 are installed on the first hinge seat 15 and the second hinge seat 16 through a pin shaft. By extending and retracting the telescopic rod 14, the height of the rear end of the guide rail 6 is adjusted, thereby adjusting the inclination angle of the guide rail 6.

[0025] The working principle of this device is as follows:

[0026] The device is transferred to the underwater dam working area through the working platform, and the cyclone suction cup 5 allows the entire device to be non-contactly adsorbed to the working area. The telescopic rod 14 is extended, and the inclination angle of the guide rail 6 is adjusted to make the underwater disc saw 10 contact with the working surface. The cutting motor 9 is turned on, and the cutting frame 7 is pushed and fed through the propulsion mechanism to make the cutting depth of the underwater disc saw 10 greater than 2 cm. Then, the whole device is moved along the direction of the crack through the walking wheel 2. At the same time, the underwater disc saw 10 performs cutting operations to cut the irregular cracks on the dam surface into grooves, which is convenient for the subsequent grouting process.

Claims

1. A dam surface underwater cutting device, comprising a frame (1), the frame (1) being provided with running wheels (2), at least one set of running wheels (2) being driven by a running motor (3), characterized in that: The frame (1) is provided with a buoy (4), the bottom of the frame (1) is provided with a vortex suction cup (5), the frame (1) is provided with a cutting mechanism, the cutting mechanism comprises an inclined guide rail (6), the bottom of the cutting frame (7) is provided with a slider (8) cooperating with the guide rail (6), the cutting frame (7) is pushed along the guide rail (6) by a propulsion mechanism, one end of the cutting frame (7) is provided with a cutting motor (9), the output end of the cutting motor (9) is provided with an underwater disc saw (10), and the bottom of the frame (1) is provided with an opening (101) for the guide rail (6) to pass through.

2. The underwater dam surface cutting device according to claim 1, characterized in that: The propulsion mechanism comprises a rack (11) arranged on one side of the guide rail (6); a drive motor (12) is arranged on the cutting frame (7); and a gear (13) meshing with the rack (11) is arranged at the output end of the drive motor (12).

3. The underwater dam surface cutting device according to claim 1, characterized in that: The bottom of the guide rail (6) is hinged to the frame (1) via a hinge, a telescopic rod (14) is provided at the rear end of the guide rail (6), the telescopic end of the telescopic rod (14) is hinged to the guide rail (6) via a first hinge seat (15), and the lower end of the telescopic rod (14) is hinged to the frame (1) via a second hinge seat (16).

4. The underwater dam surface cutting device according to claim 1, characterized in that: The swirl suction cup (5) comprises a suction cup shell (501), wherein suction cup blades (502) are arranged inside the suction cup shell (501), and the suction cup blades (502) are driven by an underwater motor (503).

5. The underwater dam surface cutting device according to claim 1, characterized in that: The vehicle frame (1) is provided with a buoy frame (102), and the buoy (4) is fixed to the buoy frame (102) via a U-shaped clamping plate (17) and bolts.

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