Tunnel blind pipe preformed groove grooving device

Abstract

The invention discloses a grooving device for a preformed groove of a tunnel blind pipe, and relates to the technical field of tunnel construction machinery. Comprising a vehicle body, mechanical arms and cutting heads. The cutting head comprises a first rotary support, a second rotary support, a grooved wheel and a hydraulic motor; the first rotary support is installed on the mechanical arm, a first supporting frame is arranged on a rotary disc of the first rotary support, the second rotary support is installed on the first supporting frame, a second supporting frame is arranged on a rotary disc of the second rotary support, the grooved wheel is rotationally arranged on the second supporting frame, and a plurality of teeth are arranged on the outer surface of the circumference of the grooved wheel. A plurality of side teeth are detachably connected to the edges of the two sides of the grooved wheel; and a depth limiting mechanism is mounted on the second support frame. The mobile mechanical grooving device is adopted, so that the labor intensity is greatly reduced, and the grooving speed is high; and width control is achieved by replacing side teeth of different models, depth control is achieved by adjusting the position of the depth limiting mechanism, grooving consistency is improved, and construction quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction machinery, and in particular to a tunnel blind pipe reserved groove opening device. Background Art

[0002] When tunnel projects pass through complex geological environments, problems such as groundwater leakage and water accumulation in surrounding rock fissures can easily lead to water seepage, frost heave or erosion in the lining structure, threatening the safety of the tunnel structure and its operational life. As a core drainage facility, drainage blind pipes need to be precisely laid out through reserved grooves to achieve directional drainage of groundwater. At present, the main methods for reserved groove construction are pre-buried pipe method and post-grooving method. The post-grooving method is to form a blind pipe installation space by manually cutting with handheld cutting tools after the tunnel lining is poured. The labor intensity is high and the grooving speed is slow, which affects the construction progress. In addition, the depth and width of the grooving are controlled by the construction personnel themselves, with poor consistency, and the construction quality cannot be effectively guaranteed. Summary of the invention

[0003] The main purpose of the present invention is to provide a tunnel blind pipe reserved groove grooving device to solve the above problems.

[0004] To achieve the above-mentioned purpose, the present invention provides a tunnel blind pipe reserved groove grooving device, comprising a vehicle body, a mechanical arm and a cutting head, one end of the mechanical arm is connected to the vehicle body, and the other end is connected to the cutting head; the cutting head comprises a first slewing support, a second slewing support, a groove wheel, and a hydraulic motor; the first slewing support is installed on the mechanical arm, a first support frame is arranged on the rotating disk of the first slewing support, the second slewing support is installed on the first support frame, and the axis of the second slewing support is arranged orthogonally to the axis of the first slewing support; a second support frame is arranged on the rotating disk of the second slewing support, the groove wheel is rotatably arranged on the second support frame, a plurality of teeth are arranged on the circumferential outer surface of the groove wheel, and a plurality of side teeth are detachably connected to the two side edges of the groove wheel; the hydraulic motor is fixedly arranged on the second support frame, and the hydraulic motor is connected to the groove wheel in power; a limited depth mechanism is installed on the second support frame.

[0005] Furthermore, it also includes a side tooth mounting ring, which is mounted on the groove wheel by bolts; two side tooth mounting rings are provided, which are symmetrically distributed on both sides of the groove wheel; a plurality of side tooth mounting screw holes are evenly arranged on the side tooth mounting ring, and the side teeth are screwed in the side tooth mounting screw holes.

[0006] Furthermore, the side teeth are inclined toward the circumferential outer surface of the groove wheel.

[0007] Furthermore, the depth limiting mechanism includes an arc-shaped limiting plate, which is provided with a mounting hole, and a plurality of threaded holes are arranged in an array on the second support frame. The arc-shaped limiting plate is fixed by passing a bolt through the mounting hole and installing it into one of the threaded holes.

[0008] Furthermore, it also includes a spray head arranged on the rotating disk of the second slewing support; there are two spray heads, and the two spray heads are symmetrically distributed on both sides of the groove wheel.

[0009] Furthermore, a water gun is also provided on the turntable of the second slewing support, and the water gun is located below the groove wheel.

[0010] Furthermore, the plurality of teeth are evenly distributed in a spiral shape on the circumferential outer surface of the groove wheel.

[0011] The present invention has the following beneficial effects:

[0012] The present invention adopts a mobile mechanical grooving device, which greatly reduces labor intensity and increases the grooving speed; by replacing side teeth of different models, width control is achieved, and by adjusting the position of the depth limiting mechanism, depth control is achieved, thereby improving grooving consistency and ensuring construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of a tunnel blind pipe reserved groove opening device proposed by the present invention;

[0014] Figure 2 A schematic diagram of a cutting head of a tunnel blind pipe reserved groove grooving device proposed by the present invention;

[0015] Figure 3 A schematic diagram of a cutting head of a tunnel blind pipe reserved groove opening device proposed by the present invention from another angle;

[0016] Figure 4 A schematic diagram of the working state of a cutting head of a tunnel blind pipe reserved groove grooving device proposed by the present invention;

[0017] Figure 5 This is a schematic diagram from another angle showing the working state of a cutting head of a tunnel blind pipe reserved groove grooving device proposed by the present invention.

[0018] In the figure: 1-car body; 2-mechanical arm; 3-cutting head; 30-arc limit plate; 31-first slewing support; 32-first support frame; 33-second slewing support; 34-second support frame; 35-hydraulic motor; 36-groove wheel; 37-spray head; 38-side tooth mounting ring; 39-side tooth; 341-threaded hole. DETAILED DESCRIPTION

[0019] In order to achieve the above-mentioned purpose and effect, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0020] like Figure 1-4As shown, the present invention provides a tunnel blind pipe reserved groove grooving device, including a vehicle body 1, a mechanical arm 2 and a cutting head 3, one end of the mechanical arm 2 is connected to the vehicle body 1, and the other end is connected to the cutting head 3; the cutting head 3 includes a first rotary support 31, a second rotary support 33, a groove wheel 36, a hydraulic motor 35 and a spray head 37; the first rotary support 31 is installed on the mechanical arm 2, a first support frame 32 is provided on the turntable of the first rotary support 31, the second rotary support 33 is installed on the first support frame 32, and the axis of the second rotary support 33 is aligned with the axis of the second rotary support 33. The axis of the first rotary support 31 is arranged orthogonally; a second support frame 34 is arranged on the turntable of the second rotary support 33, the groove wheel 36 is rotatably arranged on the second support frame 34, a plurality of teeth are arranged on the circumferential outer surface of the groove wheel 36, and a plurality of side teeth 39 are detachably connected to the two side edges of the groove wheel 36; the hydraulic motor 35 is fixedly arranged on the second support frame 34, the hydraulic motor 35 is connected to the groove wheel 36 in power, and the spray head 37 is fixedly arranged on the turntable of the second rotary support 33; a limited depth mechanism is installed on the second support frame 34. During operation, a laser level is placed on the ground, and light is directed to the designed position of the reserved groove for the tunnel blind pipe. The vehicle body 1 is moved, and the cutting head 3 is driven by the mechanical arm 2 to move to the position where the light is located for cutting. The posture of the groove wheel 36 is adjusted by the first swivel support 31 and the second swivel support 33. The cutting depth of the groove wheel 36 is limited by adjusting the depth limiting mechanism to contact the inner wall of the tunnel next to the groove. The width of the groove is controlled by replacing the side teeth 39 of different lengths.

[0021] In another embodiment, a side tooth mounting ring 38 is further included, and the side tooth mounting ring 38 is mounted on the groove wheel 36 by bolts; two side tooth mounting rings 38 are provided, and are symmetrically distributed on both sides of the groove wheel 36; a plurality of side tooth mounting screw holes are evenly provided on the side tooth mounting ring 38, and the side teeth 39 are screwed into the side tooth mounting screw holes. When width adjustment is required, the side tooth mounting ring 38 and the side teeth 39 can be replaced as a whole, which reduces the difficulty of replacement.

[0022] In another embodiment, the side teeth 39 are inclined toward the circumferential outer surface of the groove wheel 36 .

[0023] In another embodiment, the depth limiting mechanism includes an arc-shaped limiting plate 30, the arc-shaped limiting plate 30 is provided with a mounting hole, and the second support frame 34 is provided with a plurality of threaded holes 341 in an array, and the arc-shaped limiting plate 30 is fixed by passing a bolt through the mounting hole and installing it into one of the threaded holes 341. By installing different threaded holes 341, the height adjustment of the arc-shaped limiting plate 30 is achieved.

[0024] In another embodiment, two spray heads 37 are provided, and the two spray heads 37 are symmetrically distributed on both sides of the groove wheel 36 to purify the dust generated on both sides of the groove wheel 36 during the working process.

[0025] In another embodiment, a water gun is further provided on the rotating disk of the second slewing support 33, and the water gun is located below the groove wheel 36. When gravel is stuck between the teeth, it can be cleaned by the water gun to ensure the cutting effect.

[0026] In another embodiment, the spray head 37 and the water gun are connected to a water source through a pipeline, or a water tank can be provided on the vehicle body to supply water to the spray head 37 and the water gun through a water pump.

[0027] In another embodiment, the plurality of teeth are evenly distributed in a spiral shape on the circumferential outer surface of the groove wheel 36 .

[0028] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, belong to the protection scope of the present invention.

Claims

1. A tunnel blind pipe reserved groove opening device, characterized in that: It includes a vehicle body, a mechanical arm and a cutting head, one end of the mechanical arm is connected to the vehicle body, and the other end is connected to the cutting head; the cutting head includes a first slewing support, a second slewing support, a groove wheel, and a hydraulic motor; the first slewing support is installed on the mechanical arm, a first support frame is arranged on the rotating disk of the first slewing support, the second slewing support is installed on the first support frame, and the axis of the second slewing support is arranged orthogonally to the axis of the first slewing support; a second support frame is arranged on the rotating disk of the second slewing support, the groove wheel is rotatably arranged on the second support frame, a plurality of teeth are arranged on the circumferential outer surface of the groove wheel, and a plurality of side teeth are detachably connected to the two side edges of the groove wheel; the hydraulic motor is fixedly arranged on the second support frame, and the hydraulic motor is connected to the groove wheel power; a limited depth mechanism is installed on the second support frame.

2. A tunnel blind pipe reserved groove opening device as claimed in claim 1, characterized in that: It also includes a side tooth mounting ring, which is mounted on the groove wheel by bolts; two side tooth mounting rings are provided, which are symmetrically distributed on both sides of the groove wheel; a plurality of side tooth mounting screw holes are evenly arranged on the side tooth mounting ring, and the side teeth are screwed into the side tooth mounting screw holes.

3. A tunnel blind pipe reserved groove opening device as claimed in claim 1, characterized in that: The side teeth are inclined toward the circumferential outer surface of the groove wheel.

4. A tunnel blind pipe reserved groove grooving device as claimed in claim 1, 2 or 3, characterized in that: The depth limiting mechanism comprises an arc-shaped limiting plate, a mounting hole is arranged on the arc-shaped limiting plate, and a plurality of threaded holes are arranged in an array on the second supporting frame. The arc-shaped limiting plate is fixed by passing a bolt through the mounting hole and installing it into one of the threaded holes.

5. A tunnel blind pipe reserved groove opening device as claimed in claim 4, characterized in that: It also includes a spray head arranged on the rotating disk of the second slewing support; two spray heads are arranged, and the two spray heads are symmetrically distributed on both sides of the groove wheel.

6. A tunnel blind pipe reserved groove grooving device as claimed in claim 5, characterized in that: A water gun is also provided on the turntable of the second slewing support, and the water gun is located below the groove wheel.

7. A tunnel blind pipe reserved groove opening device as claimed in claim 1, characterized in that: A plurality of teeth are evenly distributed in a spiral shape on the circumferential outer surface of the groove wheel.

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