JPS6039806B2 - Self-lifting dam surface scooping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-lifting dam surface prayer device for praying the surface layer of a dam.

Conventionally, when folding the surface layer of a dam in order to raise the height of the dam, it is necessary to avoid cracking the dam concrete or damaging the water stop plate. For this reason, prayer work was carried out manually by assembling temporary scaffolding, or by applying a blast impact using Urbanite to crush the concrete. Therefore, cracks may occur at the joints, and the construction period may be extended.
This invention solves the above-mentioned problems.The present invention is a lifting type dam surface prayer device that repeats the process of cutting a plurality of grooves at predetermined intervals on the surface of a dam and then removing the concrete between the corresponding grooves. It provides: Next, embodiments of the present invention will be described based on the drawings. Figures 1 to 3 are a front view, a side view, a plan view, and a fourth view of the present invention, respectively.
The figure shows the dam surface layer and chisel arrangement. In the figure, H-shaped steel rails 2 are laid in parallel at a predetermined length using hole anchors or the like on the dam surface layer 1 at predetermined intervals, and a window frame-shaped bogie body 4 is mounted on a pin rack 3 fixed to the rails 2. The locking cylinders 6 installed inside both ends of the locking frame 5 connected to the rear end are operated and equipped with iron, and the bogie main body 4 is fixed or slidable on the rails 2 on both sides, and Auxiliary rollers 9 and moving rollers 10 provided on both sides of a frame 8 attached to predetermined positions on the outside of both frames of a cutter slide cart 7 housed in the cart body 4 are slidably sandwiched on the rail 2. and a frame 18 on the outside on the same D axis as the moving roller 10.
A frame 18' is mounted on the inner side of the cutter slider and is integrally connected to and held by the frames of the truck body 4 and the cutter slide truck 7, respectively. Inside the cutter slide cart 7, a groove cutting section A in which a plurality of groups of concrete cutters 11 and 12 are arranged in double rows, and a prayer section B in which a plurality of chisels 13 are arranged corresponding to the rear of the thin cutting section A are arranged. There is. The groove cutting section A is equipped with a hydraulic cylinder 14 for cutting the groups of cutters 11 and 12 into the dam surface layer 1 to a predetermined depth, and a belt transmission drive motor 15 for rotationally driving the groups of cutters 11 and 12. Part B is equipped with a hydraulic cylinder 16 for driving a plurality of chisels 13 into concrete, a driving angle adjustment device C for adjusting the driving angle of the chisels 13, and a horizontal movement rod 17 is connected to a cutter slide cart 7.
The chisel 13 is connected to the jack 19 for left and right movement installed at one end of the frame of the truck body 4, which is suspended over the top of the frame 18 attached to the frame 18, and the chisel 13 is inserted into the concrete between the plurality of grooves 20 that have already been cut. position according to the
configured to be installed. In addition, it was connected to the rear of the cutter slide truck 7. Tsuking frame 21
Pin rack 22 and locking cylinder provided in
The cutter slide cart 7, which is covered with iron, is fixed to the frames 18 on both sides by 23. Next, the operation of this invention will be explained. First, a plurality of cutters 11, 1 provided in the groove cutting portion A provided on the cutter slide cart 7
The hydraulic cylinder 14 and rotating belt transmission drive motor 15 are operated to cut the second group into the dam surface layer 1 to a predetermined cutting depth, and at the same time, the hydraulic cylinder 24 for advance and retreat installed at the rear of the cutter slide cart 7 is operated to make a predetermined stroke. The cart 7 is advanced until the groove is cut. After the slicing operation is completed, the hydraulic cylinder 14 is immediately moved backward to lift the cutters 11 and 12 from the dam surface layer 1, the drive motor 15 is stopped, and the advance/retreat hydraulic cylinder 24 is also moved backward, thereby moving the cutter slide cart 7.
return to its original position. Next, after activating the hydraulic jack 19 to move the horizontal movement rod 17 of the prayer part B provided at the rear of the groove cutting capital A and positioning the chisel 13 in the concrete part between each groove 20, the driving angle After operating the adjustment device C to set the chisel 13 at an appropriate driving angle, the driving hydraulic cylinder 16 is activated to drive the chisel 13 to a predetermined depth, and the advancing/retracting hydraulic cylinder 24 is activated again. If it is moved forward, the intermediate concrete portion of the cut groove 20 will be completely removed. After the prayer work is completed, the driving hydraulic cylinder 16 is returned to its original position and the /mi 13 is separated from the dam surface layer 1. To adjust the driving angle adjustment device C, as shown in the figure, the driving angle of the chisel 13 is adjusted by moving the fixing pin 27, which is engaged with the adjustment hole 26 bored at the tip of the frame 25, up and down. After adjustment and installation, the fixing pin 27 may be engaged and fixed in the adjustment hole 26.

Next, when the locking cylinder 6 installed in the locking frame 5 connected to the rear of the truck body 4 is moved forward to loosen the pin rack 3, the truck body 4 is moved together with the cutter slide truck 7 while sandwiching the rail 2. The moving roller 10 and the auxiliary low-foot 9 move forward until the next process. After the operating stroke of the hydraulic cylinder 28 is completed, the locking cylinder 6 of the truck body 4 is moved back again to press and fix the pin racks to the rails 2 on both sides. By repeating the above process, the surface layer of the next upper layer of the dam can be continuously cut and removed around 1l. At this time, for example, the depth of the cut groove is set to 6mm, and the depth to be cut is set to 5mm. The ridges can prevent the occurrence of cracks on the surface of the dam, and the chisel can be easily removed by adjusting the driving angle to 20 to 40 degrees using a flat chisel. In addition, if the stroke of the moving cylinder of the cart body is set to 150 degrees, and the stroke of the moving cylinder of the cutter slide cart is increased to 100 degrees, the movement stroke of the cart body can be increased. You can move around inside without any trouble. Although not shown, for safety reasons, if a winch is installed at the top of the dam and connected to the upper frame of the truck body with a chain, the truck body can be prevented from falling when the truck body is moved. It goes without saying that it is also possible to perform the slicing and praying operations at the same time.

As mentioned above, according to the present invention, it is possible to easily operate the cart body and the cutter slide cart to cut grooves in the dam surface layer and remove the grooves, so there is no impact on the dam surface layer, so the reaction force is small. Therefore, it is possible to prevent the occurrence of cracks.

[Brief explanation of the drawing]

FIG. 1 is a front view of the present invention, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. 4 is a dam surface layer and chisel arrangement. 1...Dam surface layer, 2...Rail, 3...
...Pin rack, 4...Dolly body, 5,2
1... Locking frame, 6, 23... Locking cylinder, 7. ...Cutter slide cart, 8, 18, 18, 25...Frame, 9.
...Auxiliary lo-fu, lo, 24...Movement lo-fu, 11,12...Cutter, 13...Chisel, 14,16,28...Hydraulic cylinder, 15...
Drive motor, 17...Moving rod, 19.
... Hydraulic jack, 20 ... Cut groove, 2
6...adjustment hole, 27...fixing pin, A
... Grooving section, B... Prayer section, C... Driving angle adjustment device. Figure 1 Figure 2 Figure 4 Figure 3

Claims (1)

[Scope of Claims] 1. A window frame-shaped truck main body is installed with a locking frame that can be fixed or slid by a hydraulic cylinder on rails laid in parallel at predetermined intervals on the surface of the dam, and A cutter slide cart is housed in the main body, and an actuating means for cutting grooves by a groove cutting section in which a plurality of groups of cutters are arranged in double rows, and a cutting section in which a plurality of chisels are arranged corresponding to the rear part of the groove cutting section. An operating means for scooping concrete between the cut grooves and a hydraulic cylinder for advancing and retracting are installed at the rear, and auxiliary rollers and moving rollers attached to a frame installed at a predetermined position on the outside of the cutter slide cart are mounted on the rail. A device for scooping the surface layer of a self-lifting dam, characterized by being slidably clamped. 2. In claim 1, a hydraulic cylinder and a drive motor are provided as an operating means for cutting a groove, and a hydraulic jack for driving a left-right moving rod and a driving angle adjustment are provided as an operating means for cutting a groove. 1. A self-lifting tom surface scooping device, characterized in that a chisel is positioned by a device and a chisel is driven by a driving hydraulic cylinder.