JPS59203106A - Structure transfer apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for transporting structures such as bridge girders.

Conventionally, when transferring a bridge girder from a riverbank etc. to a bridge pier during construction of a bridge girder, the bridge girder is placed on a transfer device and the wire connected to the bridge girder is wound up with a winch to pull the bridge girder. It is transferred by sliding the top. However, in such conventional construction methods, the work of connecting the wire to the bridge and the bridge is troublesome, and the work of winding the wire with a winch is done from a place quickly away from the bridge girder, so the transfer equipment
It was difficult to communicate between the people working on the riverbank where winches were installed and the workers in work clothes operating the winches, resulting in poor coordination of work, resulting in poor work efficiency and problems with work safety. Further, as a conventional example of the transfer device, there is one shown in FIG.

This transfer device υ) is equipped with a large number of holes (υ) as sliding means for the bridge girder C), and the rollers (Ql) are connected in pairs by a connecting rod (b), and the rollers 0v of these sets are It has a structure in which it is supported in a support shed so that it can swing up and down on a base (G).In such a transfer device O), the bridge girder (C) and the roller Qη come into rock contact, and the roller in the bridge girder (Q ←
Stress is concentrated at the contact area with η.

There is a risk of causing eccentric (C) damage. To prevent this damage, each part of conventional bridge girders is reinforced to a level greater than the originally required strength, so that they can withstand the concentration of HC force during transportation.

As a result, conventional bridge girders use a large amount of steel and paper, resulting in high costs.

By the way, bridge girders are not only straight ones, but also curved or curved ones, and such non-linear 4ijg total 14
When the transfer device 0 of the conventional device 1j is used for transfer, once the conventional device is installed, it is difficult to change the rotation of the roller 71, so there is a risk that the line 1 will be removed from the role of the roller 6. Therefore, in the conventional 'Ad0, the length of the roller 0υ was made much longer than the width of the other girders, but making the roller 9 longer in this way would lead to an increase in the size of the entire device.

The present invention was made with the aim of solving the above-mentioned technical problems, and it greatly improves the workability of transporting structures, and also allows structures to be transported without reinforcing them as in the past. To provide a device for transferring a number of objects, which can reduce the cost of the structure and reliably transfer non-mono-acid mH substances even if the device itself is small.

The first invention of the present application which achieves the above object supports an oblong support body having a straight portion on support legs standing on a pedestal, and an annular chain roller is rotatably wound around the outer periphery of the support body. A chain roller is attached to the chain roller, and an endless track belt is movably wound around the outer periphery of the chain roller, and a driving means is provided for driving the endless track belt.

Further, in the second invention, a pair of support legs are provided on the pedestal so as to be slidable left and right with respect to the transport direction of the structure, and a hydraulic cylinder is installed that biases these support legs and allows them to slide separately. An oblong circular support body having a straight portion is constructed across the pair of support legs, and both ends of the support body are connected to the support legs in the direction in which the structure is transferred. It is provided so that it can be rotated left and right.
An annular chain roller is rotatably wound around the outer periphery of the support, an endless track belt is rotatably wound around the outer periphery of the chain roller, and a drive means is provided to drive the endless track belt. It is.

That is, according to the first invention, the following effects are achieved.

■ By starting the driving means for the track belt with a structure placed on the endless track stopper at the straight part of the support, the endless track belt moves around the chain's center and rotates its rollers. Because it rotates smoothly and transfers the structure,
It is possible to control the transfer speed and the transfer status of the structure by 4 years on the riverbank etc. where the transfer device d is installed, and it greatly improves the transfer work efficiency compared to the conventional method of pulling the structure using wires and winches. It is possible to reduce the number of workers to one person and has excellent work safety.

■ Because the structure is transported in surface contact with the track belt, the structure is not subject to local concentrated stress.
It becomes possible to transport the structure without reinforcing it as in the past, and the cost of the structure can be reduced.

Further, according to the second invention, in addition to the effects of the first invention, the following effects are achieved.
By simultaneously sliding Kl in the same direction with a hydraulic cylinder, the support body can be moved in parallel, or by sliding the other support leg with one support leg fixed, or by moving a pair of support legs in opposite directions. By sliding at the same time, the support body rotates to the left and right across the plane, so the position and orientation of the support body can be changed according to the degree of bending of the valve surface and linear structure, and the device itself is small. However, even non-direct structures can be reliably transported.

Embodiments of the present invention will be described below with reference to the drawings.

Drawings 1 to 5 show an embodiment of the @1 invention, and Fig. 6 shows an embodiment of the invention.
8 to 8 show an embodiment of the second invention.

First, the embodiment of the first invention shown in FIGS. 1 to 5 will be described.

The main components of the transfer device fffi (A) of this embodiment include a pair of support legs (2) standing on a pedestal (1), a support body (3), a chain roller (4), and a track belt (
5) and a driving means for this endless track belt (5).

The support leg (2) is for supporting the support body (3),
The support body (3) is configured to be extendable and retractable using a hydraulic cylinder so that the support body (3) can be positioned at any position, and is fixed on both sides of the base (1).

The support (3) has a chain roller (4) and a track belt (
It supports structures (C) such as a-girders through 5-pins,
In order to reduce the weight of the shell, it is made hollow and is supported by side plates (6) solidly layered on both sides (which are supported by force on the upper ends of the support legs (2).The outer shape of the support body (3) is as follows. It has an elongated elliptical shape with a straight portion that ensures a wide contact area with the structure (C).

Chi z > o y (4) is nothing! M'4A iM
a t5) (7,) It is intended to reduce the circumferential mt resistance, and consists of a large number of rollers (4a) connected by a chain (4b), which is wound movably around the outer periphery of the support (3). ing.

An endless track belt (50) that contacts the structure 0 and transports the structure (C) as it rotates; each band (5a) is made of a flat plate, and Possibly wrapped.

The driving means for the endless track belt (5) is a hydraulic motor 15υ, which is driven in conjunction with this hydraulic motor φυ, and is driven by an infinite IIvL.
Road belt (each belt plate (5a) of the road belt) teeth provided on both sides (5b)
The hydraulic motor Φυ is installed in the support (3) and is connected to the gear QQ via a deforming gear train or sprocket) and a chain). It is connected to the pivot struggle η.

The support shaft (B) is rotatably supported by the support body (3), and supports gears CJZQ→ at both ends thereof. The gears (0) are located on both sides of the support (3) and rotate at a very low speed, and each strip (
It meshes with the teeth (5b) of 5a) and rotates the endless track belt (5).

The transfer device (4) of the above-described embodiment is used for the support (3). li, by placing the structure (C) on the track belt (5) at the line part and starting the hydraulic motor in this state, the track belt (5) is brought into a plane with the structure (C). While in contact with each other, the chain roller (4) rotates and each of its rollers (4a) rotates around its axis, thereby transporting the structure Ω.

Next, the second embodiment shown in FIGS. 6 to 8 will be described.

The transfer device R (B) of this embodiment is the embodiment of the first invention, by adding a slide mechanism for the support legs (N) to the device (A), so that the transfer device R (B) can be moved by changing the position and direction of the support body (3J). The rest of the structure is the same as that of the nσ example device a, and the same reference numerals are given to each member, and the explanation will be omitted.

Support 1# (2) of this embodiment device (B) is the pedestal (1)
Left and right slider for the transfer direction of the structure (C) above ■i
It is designed to be rotated at the same time and slid by being energized through a pair of hydraulic cylinders. Support leg (2)
The sliding movements are performed separately or simultaneously and are guided by guides (a) and (c) made of angle members. The guide (to) is attached to the base (of the lower end of the support leg (2)
2a) Fitted together with a gap on both sides. This guy I
The gap in the front-rear direction between I and the base (2a) is the support leg (2a).
) constitutes the escape when the locus draws an arc.

The hydraulic cylinders (23a) and (24a) that bias the support legs (2) are fixed to the same side of the pedestal (1) via brackets (2), and the tips of the actuators (23a) and (24a) are fixed to the same side of the base (1). Support 1I
It abuts or is connected to a contact plate (c) provided on the base (2a) of I4I (2).

On the other hand, since the support leg (2) has been made to have a sliding g-eron, both ends of the support body (3), that is, the left and right side plates (6) (7)
The ``σ1'' end of the support leg (2) is supported by the left stone rotation function via the support shaft.

The transfer device of the above-mentioned embodiment) is similar to the embodiment device (a) described above, in which the structure (C
), but if the structure L') is non-linear, slide the support leg (2) to transfer the support (
3) The position and orientation of (+1!! structure (0) is changed according to the degree of curvature, and the proper welding state between the infinite M passageway (5) and structure C) is maintained. By simultaneously extending the hydraulic cylinders (A) or (C) on one side, the support legs (2) slide to move the support body (3) to either the left or right with respect to the transport direction of the tribute (C). 〇Also, with one support leg (2) fixed, slide the other support leg (2), or move the inner support leg (2)
By simultaneously sliding (2) in the opposite direction,
The support body (3) is changed from left to right.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the transfer device of the first invention of the present application, and FIG.
'J is the same plan view, Figure 3 is the same plan view, No. 414 is the same plan view, and No. 414 is the same plan view.
Figure 5 is a cross-sectional view taken along line ■- (V) of Figure 2.
(V) Yuzu (Kama diagram, Figure 6 is a front view of the transfer device of the second invention of the present application, Figure 7 is the same thousand-faced pottery, Figure 8 is the 61st-in-1
(9)) - (vliD line screen diagram, the second figure is a front view showing the conventional transfer device +g. In addition, (5) 03) (Ll... transfer device C)... structure ( 1)... Pedestal (2)... Support legs (3
)...Support (-',)-...Chain roller (5)...Infinite track belt (5υ...Hydraulic motor (5a)...Infinite M force control system

Claims (1)

[Claims] ■ A length of 1'4 with a straight portion on the supporting leg that stands up on the pedestal.
A circular support is supported, an annular chain roller is movably wound around the outer periphery of the support, and an infinite wire is wrapped around the outer periphery of the chain roller! ! ! II'iJ A structure transfer device which is equipped with a driving means for driving the endless track belt. ■ Claim '4 of DfJ, in which the driving means comprises a hydraulic motor and a gear driven in conjunction with the front pressure motor and meshing with teeth provided on each of the 104 endless track belts;
A device for transferring a structure according to item 1. ■ A pair of support legs are provided on the pedestal so that they can slide left and right with respect to the transport direction of the m load, and a hydraulic cylinder is installed that biases these +-f & legs and slides them separately, while supporting the pair of m-loads. A support body with a straight line portion and a diameter of 1≧ is erected across the tumor, and an endless track belt is movably wrapped around the support legs at both ends of the support body, and this endless track A structure transfer device comprising a driving means for driving a belt.