JPH10252098A - Adjustable-leg width type soil lifting device and its moving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily move a main body by slidably forming a horizontal bar connecting the opposite side frames of a main body, and adjusting the leg width between both side frames in a soil lifting device having the main body formed with a frame base into a nearly trapezoidal shape and a soil lifting bucket provided on the main body. SOLUTION: One side frame 1a of the opposite side frames of a main body 1 is made movable, the other side frame 1b is made fixed, and the leg width W at the end section of the main body 1 is adjusted when the movable side frame 1a is moved. The horizontal bar 1c of the movable side frame 1a and the horizontal bar 1d of the fixed side frame 1b are slidably coupled and are expandably/shrinkably moved by a hydraulic cylinder 2 as the horizontal bar connecting the movable side frame 1a and fixed side frame 1b. The horizontal bar 1d and hydraulic cylinder 2 are supported by the fixed side frame 1b via a reinforcing material 1e, and the horizontal bar 1c and the plunger of the hydraulic cylinder 2 are supported by the movable side frame 1a via reinforcing materials 1f, 1g. When the movable side frame 1a is adjusted, the main body 1 can be easily moved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leg-width-adjustable earth-lifting apparatus and a moving apparatus therefor.

[0002]

2. Description of the Related Art When performing subway construction or the like on an arterial road by an open-cutting method, the construction is generally performed in consideration of not hindering traffic. For example, in the daytime, half of the road width is secured as a permanent work zone and used as an area where materials and construction machinery are on standby.Construction is concentrated at night with low traffic volume in consideration of safety, and the work area is expanded. The construction is planned to minimize the impact on the neighborhood and surrounding areas, such as by conducting large-scale operations.

[0003]

The excavated soil is lifted up to the ground by a lifting device, and is directly loaded on a dump truck introduced into a work zone and is carried out. On the main road, only two lanes can be secured as a permanent work zone in the daytime, so it is not possible to bring in a large excavator with a wide leg. In order to perform a large-scale construction, there is a problem that a large earth-lifting apparatus has to be carried in, and after the work, it has to be carried out. In addition, since the conventional lifting equipment cannot be easily moved, a separate device for laterally moving the earth and sand is required outside the lifting equipment. There was also a problem that was required.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a conventional problem, and is formed so that the leg width of an opposing side frame of a main body formed in a substantially trapezoidal shape can be adjusted. Another object of the present invention is to provide a leg-width-adjustable earth-lifting device and a moving device thereof, in which the width of the leg is reduced during standby, the width of the leg is widened when working in a wide work zone, and the main body can be easily moved.

[0005]

Means for Solving the Problems As means for technically solving the above-mentioned problems, the present invention relates to a main body formed substantially in a trapezoidal shape by a frame material, and a lifting bucket provided on the main body. The gist of the present invention is a leg-width-adjustable lifting device in which a horizontal rail connecting the opposing side frames of the main body is slidable so that leg widths of both side frames can be adjusted. Further, in a lifting device having a main body formed substantially in a trapezoidal shape by a frame material and a lifting bucket provided in the main body, a horizontal rail connecting the opposing side frames of the main body is slidably formed. The gist of the present invention is a moving device of a leg-width-adjustable earth-lifting device in which a jack-up mechanism and a traveling mechanism are respectively attached to lower portions of legs of both side frames.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a simple clam beam will be described below in detail with reference to the accompanying drawings.
1 to 3, reference numeral 1 denotes a substantially trapezoidal main body made of a frame material.
a is a movable type, the other side frame 1b is a fixed type,
By moving a, the distance between the movable side frame 1a and the fixed side frame 1b, that is, the leg width W of the end of the main body 1 can be adjusted.

That is, the three horizontal beams connecting the movable side frame 1a and the fixed side frame 1b are a horizontal beam 1c attached to the movable side frame 1a and a horizontal beam 1d attached to the fixed side frame 1b. The movable side frame 1a is extended and contracted by a slide mechanism, for example, a hydraulic cylinder 2 connected to both ends of the movable side frame 1a and the fixed side frame 1b. As shown in FIG. 3 (a), the horizontal rail 1d and the hydraulic cylinder 2 are connected to the fixed side frame 1b via the reinforcing member 1e.
And the plunger of the horizontal rail 1c and the hydraulic cylinder 2 is supported by the movable side frame 1a via reinforcing members 1f and 1g.

Reference numeral 3 denotes a hydraulic unit, which is installed on the mesh top plate 1h of the fixed side frame 1b so that the hydraulic cylinder 2 can be driven and controlled. As shown in FIG. 1, a stopper mechanism, for example, a lock pin insertion cylinder 4 is attached to the tip of the horizontal rail 1d of the fixed side frame 1b, and the horizontal rail 1c is locked by the cylinder 4. It is not necessary to provide.

A plurality (three in the illustrated example) of wheels 5 such as casters are attached to the leg ends of the movable side frame 1a so that the movable side frame 1a can smoothly expand and contract. Places jacks 6 before and after the wheels 5, respectively.
The wheels 5 are slightly lifted from the ground contact surface by these jacks 6 to fix the movable side frame 1a. Instead of the jack 6, although not shown, it is also possible to attach an outrigger to a key portion of the lower end of the movable side frame 1a and fix the movable side frame 1a by the outrigger.

Reference numeral 7 denotes a lifting bucket for carrying the excavated soil to the ground. The lifting bucket 7 is lifted and lowered via a wire rope 9 by a hoisting winch 8 disposed on the mesh top plate 1h of the fixed side frame 1b. The base 10 for suspending and holding the earth bucket 7 is horizontally moved in the lateral direction (the left-right direction in FIG. 2) along the guide rail 11 attached to and attached to the horizontal rail 1d of the fixed side frame 1b. Therefore, the excavated soil can be directly piled up by traversing the earthing bucket 7 together with the base 10 to the position above the bed of the dump truck D. 12
A roller provided on the base 10 is engaged with the guide rail 11, and is driven by a motor 13 installed on the base 10 to rotate along the guide rail 11.

In the above-described lifting device, the movable side frame 1a is contracted and the leg width W 'of the end of the main body 1 is shortened as shown in FIG. And minimize
When the work band is used in a wide work band or the night work band is expanded even in a narrow work band, the movable side frame 1a is shifted as shown in FIG. To maximize.

The work of adjusting the leg width can be easily performed by operating the hydraulic cylinder 2 by the hydraulic unit 3 as described above, and the wheel 5 is attached to the leg end of the movable side frame 1a. The movement can be performed smoothly, and after the movement, the movable side frame 1a can be fixed via the jack 6 or the outrigger, and the main body 1 can be stably held.

Therefore, even in a narrow work zone in the daytime, the large-sized bucket 7 can be used to efficiently perform the unloading operation.
As it is possible to secure the amount of soil per hour, it is also possible to keep it ready for night work when the work zone expands,
There is no need to separately carry a large unloading device for night work, and the labor for unloading after the work is completed can be saved.

FIG. 4 to FIG. 6 show another embodiment of the earth-lifting apparatus according to the present invention. The basic structure is the same as that of the earth-lifting apparatus. The difference is that the device is provided.

In this earth-lifting apparatus, the main body 21 is formed in a substantially trapezoidal shape by a frame material.
The horizontal rails 21c and 21d that connect the first frame 1a and the side frame 21b are slidably fitted to adjust the leg width of the end of the main body 21.

The moving device has a jack-up mechanism and a traveling mechanism, that is, wheels 25 such as casters, which are traveling mechanisms, are attached to leg ends on both sides of the side frames 21a and 21b, respectively. A jack-up mechanism for moving the wheel 25 up and down, for example, a lifting cylinder 26 is provided.

When the wheel 25 is in the raised position, the side frame 2
When the leg ends of 1a and 21b touch the ground and hold the body 21 stably, when the wheel 25 is pushed down by the lifting cylinder 26, the side frames 21a and 21b are lifted and the wheels 25 are grounded at the same time. That is, since the main body 21 is jacked up and separated from the ground contact surface, it is possible to use the wheels 25 to move the lifting device to another place.

When adjusting the leg width at the end of the main body 21, the side frame 2
The side frame 21a is jacked up by pushing down only the wheel 25a of 1a, and the side frame 21a is displaced by the hydraulic cylinder 22 using the wheel 25. After adjusting the leg width at the end of the main body 21 by this displacement, the wheels 25 of the side frame 21a are adjusted.
Is raised, and the side frame 21a is grounded again, so that the main body 21
Can be held stably.

This earth-lifting device also minimizes the width of the leg at the end of the main body 21 during use in a narrow work zone in the daytime or at standby, and works at night even when used in a wide work zone or in a narrow work zone. When the band is expanded, the leg width at the end of the main body 21 can be maximized.

Thus, even in a narrow working zone in the daytime, the large-sized earthing bucket 27 can be used to efficiently perform the earth unloading operation, and the amount of earth unloaded per hour can be secured. Since it is also possible to be prepared and put on standby, there is no need to carry in a large earth-lifting device, and it is possible to save the trouble of carrying out after the work is completed. Further, as described above, since the earth lifting device can be easily moved, there is no need for a device for laterally moving earth and sand outside the earth lifting device.

Reference numeral 23 denotes a hydraulic unit for driving and controlling the hydraulic cylinder 22 and the like. Reference numeral 24 denotes a lock pin insertion cylinder serving as a stopper mechanism. Reference numeral 28 denotes a hoisting winch for hoisting the lifting bucket 27 via a wire rope 29. 30 is a base for holding the earthing bucket 27,
31 is a guide rail for traversing the lifting bucket 27;
Is a roller that engages with the guide rail 31 and rotates.
33 is a motor for traversing the base.

[0022]

As described above, according to the present invention,
Because the leg width of the lifting device can be adjusted, it is possible to respond flexibly to narrow and wide work zones. It is possible to secure the amount of unloading per hour and to make it stand by in a narrow work zone, so that there is no need to load and unload a large unloading device for night work.
In addition, it is possible to move easily by providing a moving device in the lifting device, it can be freely moved according to the work site, and a separate device for laterally moving the earth and sand outside the lifting device is required. It also has excellent effects such as not doing so.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a lifting device according to the present invention.

FIG. 2 is an elevation view of the same.

FIG. 3 is an end view of the same, in which (a) shows a state where the leg width is enlarged, and (b) shows a state where the leg width is reduced.

FIG. 4 is a plan view showing another embodiment of the earth-lifting apparatus according to the present invention.

FIG. 5 is an elevation view of the same.

FIG. 6 is an end view of the same, in which (a) shows a state where the leg width is enlarged, and (b) shows a state where the leg width is reduced.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body 1a ... Movable side frame 1b ... Fixed side frame 1c, 1d ... Side rail 1e, 1f, 1g ... Reinforcement material 1h ... Net top plate 2 ... Hydraulic cylinder 3 ... Hydraulic unit 4 ... Lock pin insertion cylinder 5 ... Wheel DESCRIPTION OF SYMBOLS 6 ... Jack 7 ... Lifting bucket 8 ... Hoisting winch 9 ... Wire rope 10 ... Base 11 ... Guide rail 12 ... Roller 13 ... Motor 21 ... Body 21a, 21b ... Side frame 22 ... Hydraulic cylinder 23 ... Hydraulic unit 24 ... Lock pin insertion cylinder 25 ... Wheel 26 ... Lifting cylinder 27 ... Lifting bucket 28 ... Hoisting winch 29 ... Wire rope 30 ... Base 31 ... Guide rail 32 ... Roller 33 ... Motor

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shunichi Inushibashi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation Inside (72) Inventor Noriaki Ikenaga 4-43 Midori, Sumida-ku, Tokyo Yoshinaga Machinery Co., Ltd. (72) Inventor Tadashi Saito 4-3, Midori, Sumida-ku, Tokyo Yoshinaga Machinery Co., Ltd.

Claims (2)

[Claims] In a lifting apparatus having a main body formed in a substantially trapezoidal shape by a frame material and a lifting bucket provided in the main body, a horizontal rail connecting an opposing side frame of the main body can be slid. And a leg width adjustable type earthing device characterized in that the leg width of both side frames can be adjusted. 2. A lifting device having a substantially trapezoidal main body formed of a frame material and a lifting bucket provided on the main body, a horizontal rail connecting the opposing side frames of the main body can be slid. And a jack-up mechanism and a traveling mechanism are respectively attached to the lower portions of the legs of both side frames.