JP2007016549A - Conveying equipment of concrete and its conveying method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To get conveying equipment of a concrete and its conveying method capable of not being required for moving the concrete to transfer from a dump truck to a conveying holder or the like when the concrete conveyed to the river bed section by the dump truck is moved on a dam body, not being required for again moving it also from the conveying holder to the dump truck on the upper section of the dam body and improving workability by simultaneously carrying out the lifting and lowering of a plurality of holders without increasing the number of installations of winch. <P>SOLUTION: In the conveying equipment of the concrete conveying the concrete on the dam body from the river bed side by a conveyer erected by making it approach the dam body 1, a mast 3 reaching the upper part of the dam body 1 is erected on the river bed section 2, concrete conveying lifts 4a and 4b are respectively fixed to a free end and a middle part of a wire rope 9 wound on a sheave 8 provided to the upper part of the mast 3, and a winding device 5 of the wire rope 9 is placed to the river bed section 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a concrete transport facility for transporting concrete into a dam dyke when building a concrete dam.

  In the construction of a dam dam body, a construction method is used in which concrete casting layers are stacked and constructed upward, but it is necessary to transport concrete to construct a new layer sequentially on the dam dam body.

  As a facility for transporting this concrete, for example, there is a concrete transport device that can transport the concrete transported from a concrete kneading facility to a dump truck on a dam body without transferring the concrete (see, for example, Patent Document 1).

  This is provided on the riverbed side, with a platform provided above the upper surface of the dam dam body supported by a plurality of masts erected from the riverbed, and a stacker crane extending on the dam dam body. A lower suspension that is raised and lowered by a winch is provided via a pulley provided on the gantry, and an upper suspension is provided on the stacker crane. It is to be transported.

In addition, a plurality of lower suspenders for suspending the bucket are installed, and one lower suspender conveys a bucket loaded with concrete, and the other lower suspender conveys an empty bucket after discharge.
JP 2000-160538 A

  In the conventional example, it is not necessary to transfer the concrete from the dump truck to the lifting bucket using a hopper or the like, but the bucket filled with concrete that has been mounted on the transport vehicle is lifted on the dam body by the lower suspension Furthermore, it is necessary to transfer to a dump truck waiting on the dam dam body by an upper suspension tool, which requires labor and is not workable.

  In addition, a plurality of lower suspenders are installed so that the plurality of lower suspenders are moved up and down simultaneously. This is to simplify the winch on the side where the empty bucket is lowered. It is necessary to install the same number of winches as the number of installed, which increases the scale of the equipment.

  The purpose of the present invention is to eliminate the inconvenience of the conventional example, and when transferring the concrete transported to the river bed by the dump truck onto the dam body, it is not necessary to transfer the concrete from the dump truck to a transfer stand, Moreover, it is not necessary to transfer again from the transfer platform to the dump truck in the upper part of the dam body, and it is possible to raise and lower a plurality of platforms at the same time without increasing the number of winches installed, thereby improving workability. An object of the present invention is to provide a concrete transport facility and a transport method that can be used.

  In order to achieve the above object, the present invention provides, as a facility, a concrete transport facility for transporting concrete from a river bed side onto a dam dam body by a transport device erected in the vicinity of the dam dam body. A mast that reaches the top of the body is erected on the riverbed, and concrete lifts are fixed to the free end and midway of the wire rope wound around the sheave provided at the top of the mast. The gist is that a hoisting device is provided.

  Secondly, the gist of the lift is to mount a concrete conveying vehicle.

  Thirdly, in the concrete transport facility that transports concrete from the riverbed side onto the dam dam body by a transport device that stands up close to the dam dam body, the mast reaching the dam dam body is removed from the riverbed. The lift for concrete conveyance is fixed to the free end and the middle of the wire rope wound around the sheave provided at the top of the mast, respectively, and the wire rope hoisting device is disposed on the river bed, The gist of the invention is that the wire rope is wound or unwound by the hoisting device so that one lift is raised or lowered while the other lift is lowered or raised.

  According to the first and third aspects of the present invention, one of the lifts fixed to the free end of the wire rope is raised or lowered by winding or unwinding the wire rope by the hoisting device. The other lift that is fixed is lowered or raised simultaneously. Therefore, a plurality of lifts can be lifted and lowered at the same time with a single hoisting device, and the workability can be improved and the power can be saved without increasing the equipment.

  According to the second aspect of the present invention, in addition to the above action, the lift is mounted with a concrete transporting vehicle, so the vehicle loaded with concrete is mounted on the lift as it is and the lift is raised. Later, by moving the vehicle as it is to the upper part of the dam body, there is no transfer of concrete, and workability is improved.

  As described above, the concrete transfer equipment and transfer method of the present invention transfers concrete from the dump truck to a transfer stand or the like when transferring the concrete transferred to the river bed by the dump truck onto the dam dam body. There is no need to replace it, and there is no need to transfer it again to the dump truck at the upper part of the dam body. In addition, it is possible to raise and lower multiple platforms simultaneously without increasing the number of winches installed, thereby improving workability. It is something that can be done.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing an embodiment of a concrete transport facility of the present invention, FIG. 2 is a side view of the same, and the concrete transport facility of the present invention stands vertically from a riverbed 2 in the vicinity of a dam dam body 1. The mast 3 is provided, lifts 4a and 4b for raising and lowering the mast 3, and a hoisting device 5 for raising and lowering the lifts 4a and 4b.

  The mast 3 is configured such that the upper end reaches the top of the dam dam body 1 and can be added upward sequentially as the dam dam body 1 is constructed. Guide rails 6 are provided in the vertical direction on both the left and right sides of the mast 3, and lifts 4 a and 4 b that move up and down along the guide rails 6 are attached to the guide rails 6. The lifts 4a and 4b are mounted with dump trucks which are vehicles 12a and 12b for transporting concrete, and the front and rear portions thereof are formed on a fall prevention plate 10 that rotates upward to prevent the vehicle from falling.

  In the figure, reference numeral 7 denotes a frame that supports the lifts 4 a and 4 b and moves along the guide rail 6, and 11 denotes a frame that is an intermediate support member for supporting the middle of the mast 3 by the side wall of the dam dam body 1.

  As a lifting device of the lift 4, a winch that is a hoisting device 5 is installed at the base of the mast 3, and a plurality of sheaves 8 are arranged on the top of the mast 3, and the wire rope 9 wound around the winch The free end is fixed to one lift 4a, and the middle of the wire rope 9 is fixed to the other lift 4b. Accordingly, the two lifts 4a and 4b are configured such that one of the lifts 4a and 4b is simultaneously lifted or lowered and the other is lowered or lifted up like a seesaw by winding and unwinding the wire rope 9.

  Next, a concrete transport method will be described. In order to convey concrete to the top of the dam body 1 of the concrete dam under construction, as shown in FIGS. 1 and 2, one lift 4b is placed on the lower riverbed 2 and the other lift 4a is placed on the upper dam dam body 1. Located on top of In this case, if one lift 4 b is positioned on the river bed 2, the other lift 4 a is automatically positioned on the top of the dam body 1.

  And in the riverbed part 2, the dump truck which is the vehicle 12b which loaded concrete is mounted on the downward lift 4b. At the same time, on the top of the dam body 1, the other lift 4 a is loaded with the vehicle 12 a that is empty in the loading platform after the concrete transport is completed. In this state, when the hoisting device 5 is driven and the wire rope 9 is wound up, the lower lift 4b is raised, and at the same time, the upper lift 4b is lowered.

  Therefore, when the lower lift 4b reaches the top of the dam dam body 1, the vehicle 12b loaded with concrete is lowered from the lift 4b and moved to the concrete placement site as it is. At the same time, when the other lift 4a descending from above reaches the lower riverbed 2, the empty vehicle 12a is lowered from the lift 4a and moved for concrete loading.

  The movement of the vehicle 12b loaded with concrete in this way to the top of the dam dam body 1 and the movement of the empty vehicle 12a from the dam dam body 1 to the river bed 2 are performed using one hoisting device 5. Do it at the same time.

  The concrete can be loaded on the lift 4b by mounting the vehicle 12b loaded with the concrete as it is, and the concrete can be transferred from the lift 4b to the concrete placement site of the dam dam body 1 by the lift 4b. The vehicle 12b mounted on the vehicle can be moved down from the lift 4b as it is.

It is a front view which shows embodiment of the conveyance equipment and conveyance method of the concrete of this invention. It is a side view which shows embodiment of the conveyance equipment and conveyance method of the concrete of this invention. It is the sectional view on the AA line of FIG. 2 which shows embodiment of the concrete conveyance facility and conveyance method of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Dam bank body 2 ... River bed part 3 ... Mast 4a, 4b ... Lift 5 ... Hoisting device 6 ... Guide rail 7 ... Frame 8 ... Sheave 9 ... Wire rope 10 ... Fall prevention plate 11 ... Frame 12a, 12b ... Vehicle

Claims (3)

  In a concrete transport facility that transports concrete from the riverbed side onto the dam dam body by means of a transport device erected close to the dam dam body, a mast that reaches the top of the dam dam body is erected on the river bed, and the mast Concrete transport equipment characterized in that a concrete rope lift is fixed to the free end and midway of the wire rope wound around the sheave provided on the upper part, and a wire rope hoisting device is arranged on the river bed. .   The concrete transport facility according to claim 1, wherein the lift is equipped with a concrete transport vehicle.   In a concrete transport facility that transports concrete from the riverbed side onto the dam dam body by means of a transport device erected close to the dam dam body, a mast that reaches the top of the dam dam body is erected on the river bed, and the mast The concrete transport lift is fixed to the free end and halfway of the wire rope wound around the sheave provided on the upper part, and the wire rope hoisting device is arranged on the river bed, and the wire rope is attached to the hoisting device. A concrete conveying method characterized by winding or unwinding, wherein one lift is raised or lowered and at the same time the other lift is lowered or raised.

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