JPH0680376A - Slide type traveling crane - Google Patents

Abstract

PURPOSE:To provide a slide type traveling crane to be used for carriage of construction materials, for assembly of steel frames, or as an overhead crane or the like. CONSTITUTION:A slide type traveling crane consists of a main rail 1 fixed to the lower surface of a horizontal member, an auxiliary rail 2 which is horizontally suspended underside of the main rail 1 by a mobile supporting machine, a slide rail 3 which is approximately horizontally suspended underside of the auxiliary rail 2 by the mobile supporting machine traveling along the auxiliary rail 2, and a mobile suspending machine which is movable along the slide rail 3. At least two sets of the mobile supporting machines 5 to suspend the slide rail 3 are fixed at the points on each side of the middle point of the slide rail 3 which are as close thereto as possible, and this mobile supporting machine 5 is suspended to the auxiliary rail 2 in a traveling manner. Thus, the slide rail 3 is equally projected to each outer side of the main rail 1, and the crane operation by a hoist 6 or the like can be executed within the projected range.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used for vertical transportation (lifting) and horizontal transportation of materials in building construction such as a building by a roof push-up method, or for assembling steel frames, etc. The present invention relates to a sliding traveling crane that is widely used as an overhead crane for carrying various items in factories.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 4-45095 discloses a slide type traveling crane that turns around a circular rail. Further, Japanese Patent Laid-Open No. 4-45096 discloses a slide type traveling crane that travels along an oval rail.

[0003]

In the above-described conventionally known slide type traveling crane, the slide rail thereof projects only to the outside (one side) of the circular rail or the elliptical rail, and at the protruding position, the lifting or Although it enables horizontal transportation work, it cannot project to the opposite side (inside). Therefore, the work range on the opposite side is significantly restricted, and the usability is somewhat inconvenient, which is a problem to be solved.

[0004]

As a means for solving the above-mentioned problems of the prior art, a slide type traveling crane according to the present invention is fixed to the lower surface of a horizontal member 100 as shown in the drawings. Main rail 1 and an auxiliary rail 2 suspended substantially horizontally by a self-propelled support machine such as an electric trolley 4 arranged below the main rail 1 at a substantially right angle and traveling along the main rail 1. , Is suspended substantially horizontally from the auxiliary rail 2 by a self-propelled support machine such as an electric trolley 5 arranged along the auxiliary rail 2 and traveling along the auxiliary rail 2 so as to be movable in the axial direction. In a slide type traveling crane comprising a slide rail 3 and a self-propelled hoist such as a hoist 6 movably installed along the slide rail 3, a self-propelled support for suspending the slide rail 3 is provided. At least two units 5 are fixed to the slide rails 3 in a substantially symmetrical arrangement on the left and right sides of the middle point of the slide rail 3, and as close as possible to the middle point. It is characterized in that it is suspended on the rail 2 so that it can travel freely.

[0005]

Operation: The slide rail 3 is driven to control the self-propelled supporter 5 that suspends the slide rail 3, so that the self-propelled supporter 5 can approach the end of the auxiliary rail 2 (see FIG. 4B or C). Up to)) are projected almost equally in both left and right directions. Therefore, if a self-propelled hoisting machine such as a hoist 6 that moves along the entire length of the slide rail 3 is utilized, crane work can be performed on a wide range on both outer sides of the main rail 1.

[0006]

EXAMPLE An example of the present invention shown in the drawings will be described below.
In the slide type traveling crane shown in FIGS. 1 and 2, a main rail 1 made of I-shaped steel is attached and fixed to a lower surface of a horizontal member 100 such as a horizontal ceiling or a beam of a building substantially horizontally. An electric trolley 4 running on the main rail 1 is provided with a linear auxiliary rail 2 which is arranged orthogonal to the main rail 1 on the lower side (however, a self-propelled function and a suspension support function are provided similarly to this). If it is a traveling type support machine, the same applies hereafter) and is suspended substantially horizontally. The auxiliary rail 2 is also an I-shaped steel, and the two auxiliary rails 2 and 2 are arranged in parallel at intervals of about 1.5 m and are integrally rigidly connected by several horizontal tie members 2a. . The electric trolley 4 is installed at positions near both ends of the auxiliary rail 2 as shown in FIG. This electric trolley 4 has a trolley yoke in which a drive wheel 4a running on the lower flange of the main rail 1 and a motor 4b with a brake for rotationally driving the drive wheel 4a are arranged symmetrically across both sides of the rail. is set up.
Suspension metal fittings below the trolley yoke are connected to the suspension frame 34 of the auxiliary rail 2. The rated suspension load of this electric trolley 4 is set to about 5 tons.

Below the auxiliary rail 2, a linear slide rail 3 is also provided. The auxiliary rail 2 is driven by two (or three or more) electric trolleys 5 running on the auxiliary rail 2. It is hung horizontally and in parallel with. This slide rail 3 is also an I-shaped steel with a length of about 6 m, and the two auxiliary rails 3 and 3 are arranged in parallel at the same 1.5 m intervals as the auxiliary rails 2 and 2, and several horizontal joints are provided. The material 3a is integrally rigidly connected. Therefore, when the slide rail 3 is positioned in the neutral position, the slide rail 3 is vertically symmetrical with the auxiliary rail 2 as shown in FIG. 1 or 4A.

As is clear from FIGS. 4A, 4B, and 4C, the position at which the slide rail 3 is suspended by the electric trolley 5 is substantially symmetrically arranged on the left and right sides of the midpoint of the slide rail 3, and depending on the suspension load. The position is set as close to the midpoint as possible within a limit that can prevent tilting (or tilting). The details of the structure in which the slide rail 3 is suspended by the electric trolley 5 are, as shown in FIGS. 1 and 2, a driving wheel 5 a that travels on the upper surface of the lower flange of the auxiliary rail 2 and the driving wheel 5 a.
The motor 5b with a brake that rotationally drives a is attached to the auxiliary rail 2
It is installed on a trolley yoke having a symmetrical structure straddling both sides of, and a suspending metal fitting under the trolley yoke is connected to a suspension frame 34 of a slide rail. This electric trolley 5 has a rated suspension load of 5 tons and a rated speed of 6 to 24 m / mi.
n.

On the two slide rails 3 and 3, a hoist 6 which can travel over its effective total length (about 6 m) is freely movable.
(Or, as long as it is a self-propelled hoist having a self-propelled function and a lifting function and a lifting ability, the same applies below), one slide rail 3 at a time (or, if necessary, one at a time). (Two or more units are acceptable) A total of two units are installed. Hoist 6
It is composed of a combination of an electric trolley and an electric chain block, and both are integrally assembled on a common frame. The electric trolley is a trolley in which a drive wheel 6a running on the upper surface of the lower flange of the slide rail 3 and a motor 6b with a brake for rotationally driving the drive wheel 6a are formed in a symmetrical structure across both sides of the slide rail 3. It is installed in York. The chain hanging hook 60, which is extended from the electric chain block, moves in and out from the lower part of the trolley yoke. Rated traveling speed of electric trolley is 6-24m /
It is min. The electric chain block is an electric type that is driven by a motor, and is provided with a chain bucket.
The rated suspension load of the electric chain block is 1.5 tons, the lifting height is 15 m, and the hoisting speed is about 2.6 m to 7.9 m / min.

Therefore, this slide type traveling crane is
When the electric trolley 4 is controlled to move forward, reverse, or stop by remote control by wire or wireless using a push button type operation box, the electric trolley 4 runs along the main rail 1 at a rated speed of 6 to 24 m / min. The crane moves. Next, when the motor 5b of the electric trolley 5 is controlled to move forward, backward, or stop by remote control by wire or wireless using a push button type operation box, for example, the slide rail 3 is moved from the neutral position of FIGS. 3A and 4A. The protrusion operation is performed leftward as shown in FIGS. 3B and 4B or rightward as shown in FIGS. 3C and 4C. By the way, in each of the above-described dimensional specifications, the tip of the slide rail 3 protrudes from the end of the auxiliary rail 2 by a maximum of about 3 m. Therefore, the crane work can be performed up to the range expanded by about 3 m on both outer sides of the auxiliary rail 2.

Further, the hoist 6 is moved over the entire length of the slide rail 3 by controlling the motor 6b of the electric trolley 6 to move forward, backward, or stop by remote control of a push button type operation box by wire or wireless. It becomes the hook movement range (FIGS. 3A and 3B). Further, by hoisting and lowering the motor of the electric chain block and controlling the stop, the materials hung on the hook 60 can be lifted.

According to FIGS. 3 and 4, the horizontal member 100 is a beam installed on a pillar 101 of a building or a ceiling portion of a floor.

[0013]

EFFECTS OF THE INVENTION The slide type traveling crane according to the present invention is so constructed that the slide rails 3 are equally projected to both outer sides of the main rail 1 and the crane work can be performed by the hoist 6 or the like within the projected range. The range is equally expanded to both outsides and is easy to use.

[Brief description of drawings]

FIG. 1 is a front view of a sliding traveling crane.

FIG. 2 is a side view of a slide type traveling crane.

3A, 3B and 3C are plan views schematically showing the operation of the slide traveling crane.

4A, 4B, and 4C are front views roughly showing the operation of the slide traveling crane.

[Explanation of symbols]

 100 Horizontal material 1 Main rail 4 Electric trolley 2 Auxiliary rail 5 Electric trolley 3 Slide rail 6 Hoist

Claims (1)

[Claims] 1. A main rail fixed to the lower surface of a horizontal member and a self-propelled support machine such as an electric trolley which is arranged under the main rail at a substantially right angle and runs along the main rail so as to be substantially horizontal. A suspended auxiliary rail and a self-propelled support machine, such as an electric trolley, which is disposed below the auxiliary rail and substantially parallel to the auxiliary rail and runs along the auxiliary rail, are substantially horizontally movably in the axial direction. In a slide type traveling crane consisting of a suspended slide rail and a self-propelled hoist such as a hoist movably installed along the slide rail, a self-propelled support machine suspending the slide rail is At least two slide rails are fixed to the slide rails in a substantially symmetrical arrangement on the left and right sides of the middle point of the slide rail, and as close as possible to the middle point. A slide-type traveling crane characterized by being suspended so that it can travel freely.