JPS6214005Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for transporting heavy objects such as bridges.
Generally, when building a railway bridge over a river or valley, a concrete foundation is built in the river, the bridge is placed on this foundation, and a rail opposing the ground rail is installed on this bridge. However, the above-mentioned bridge is very heavy, and when it is installed on a concrete foundation, it must be moved from the ground to the foundation from the longitudinal direction, or it must be assembled on the foundation and then moved from the horizontal direction to the ground. One possible method is to push it to a position where it faces the rail. However, when moving such a heavy object on a bridge using, for example, a hydraulic device, the hydraulic device must be held on the opposite side of the heavy object as a reaction. Publication No. and Special Publication No. 50-5123
However, all of these devices have a complicated structure, are difficult to design, are disadvantageous in terms of cost, and have the disadvantage that they do not have sufficient gripping force.

Furthermore, as a conventionally known general method for moving heavy structures, a roller and a trolley are interposed in the movement path of the heavy structure, the heavy structure is placed on the rollers and the trolley, and a winch is used. This heavy structure is transported by winding a rope around it. However, this type of conveyance method requires a large number of rollers and carts to be placed on the moving path, as well as the use of large winches, making the equipment itself extremely large and expensive. In addition to being disadvantageous, moving the rollers and heavy structures on the truck with a winch also has drawbacks such as the directionality is not fixed.

Therefore, in order to solve these conventional drawbacks, a heavy object conveying device disclosed in Japanese Patent Publication No. 56-17242, for example, is known. This conveyance device has a hydraulic cylinder connected to one end of the shoe, and a gripping device connected to the other side of the hydraulic cylinder. It has a hook-shaped hanger that is pivoted, and an operation cylinder that is supported by a gripping cylinder and connected to the hanger, and the hanger is attached to an H-steel rail flange by operating the two gripping cylinders and the operation cylinder. When the gripping device is fixed to the rail side and the hydraulic cylinder is extended, the shoe is moved in the longitudinal direction. However, while these heavy object transport devices have a large gripping force and pressing force, they also require a rail with an H-shaped cross section to hold the hook-like hanger. It is necessary to use members, and the seating height of the rail needs to be high enough to hang the hook, which inevitably complicates the structure of the rail itself, increases material costs, etc., and has many disadvantages in terms of cost. Furthermore, the hook-like hanger and its driving device have a complicated structure and a large number of parts, and there are problems that need to be improved in terms of workability and economical efficiency.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a heavy object conveying device that is simple in structure, easy to work with, and economical.

In order to achieve this objective, the present invention has a locking plate erected on both sides of a thin plate-shaped rail, and a large number of locking grooves are provided at the top of the locking plate, and the other side is locked to the drive cylinder side of the heavy object. This device is characterized by having a hanger that selectively engages with the groove and is movable up and down.

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

The heavy object conveyance device 1 of the present invention includes a rail 2 and a locking plate 3 standing on both sides or one side of the rail 2.
, a shoe 5 for transferring a heavy object 4, a drive cylinder 6 of the shoe 5, and a hanger 7 for detachably holding the base end of the drive cylinder 6 on a locking plate.

The rail 2 is made up of a sliding plate 9 made of stainless steel or the like fixed to the top surface of a plate 8 made of a thin metal or the like, and a locking plate 3 stands up along the longitudinal direction on both sides of the plate 8. 3, a large number of locking grooves 10 are formed at arbitrary intervals, for example, at equal intervals.

The shoe 5 has two fitting grooves 12 formed at the center of the lower end of a rectangular main body 11, a spacer 13 and a support member 14 are fitted into the fitting grooves 12, and a support member 14 is fitted into the fitting grooves 12.
A smooth slide plate 15 made of Teflon or the like is held on the lower surface of 4, and this slide plate 1 is held on the rail 2.
5, the shoe 5 is adapted to slide in the longitudinal direction. At this time, both sides of the shoe 5 are guided by the locking plate 3 to prevent it from derailing laterally from the rail 2.

A heavy object 4 is placed on the upper surface of the shoe 5, and as the shoe 5 moves, the heavy object 4 is also transferred in the same direction. In addition, a locking groove 10 is provided on the side or front end of the shoe 5.
It is preferable to provide, for example, the same hook portion as the hanger 7, which is detachably hooked to the hook.

A bracket 16 projects from the right end of the shoe 5, and a piston rod 17 of the drive cylinder 6 is connected to the bracket 16 via an eye 18. The drive cylinder 6 consists of a cylinder 19 and a piston rod 17 slidably inserted into the cylinder 19 via a piston. Two pressure chambers are formed within the cylinder 19 and partitioned by the piston. Hoses 20 and 21 are connected to the pressure chambers so that a pressure source such as oil or air can be supplied to and discharged from one pressure chamber.

A holding part 22 is fixed to the outer periphery of the right end of the cylinder 19, and an anchor cylinder 23 is held at the right end of this holding part 22 in the vertical direction. The front and back surfaces of the holding part 22 are brought close to the locking plate 3 with a slight gap therebetween, and a groove 24 is formed in the center of the outer periphery of the holding part 22, and the hanger 7 is held in this groove 24. . The hanger 7 includes a forked support plate 26 and a connecting member 25.
The connecting member 25 extends horizontally from the support plate 26, and its end is connected to the piston rod 27 of the anchor cylinder 23, and the support plate 26 is guided in the groove 24 as the anchor cylinder 23 expands and contracts. It is designed to move up and down.

A stepped portion 28 is formed on the lower surface of the outer end of the support plate 26,
When the support plate 26 is lowered, this stepped portion 28 engages the locking groove 1.
It is designed to come into contact with the bottom surface of 0.

The depth of the locking groove 10 is formed so that it becomes deeper downward from the axis position of the drive cylinder 6, in other words, from the extension line of the axis.

Next, we will discuss the operation.

Assume that the drive cylinder 6 is currently being compressed.
In this state, the heavy object 4 to be transported is placed on the shoe 5, the anchor cylinder 23 is compressed, and the support plate 2
6 is engaged with the locking groove 10. Next, when the drive cylinder 6 is extended, the piston rod 17 pushes the shoe 5 to the left, and the shoe 5 moves on the rail 2 with the heavy object 4 on it, and the amount of movement is equal to the amount of extension of the piston rod 17. Also, when the shoe 5 moves forward, the reaction force acts on the drive cylinder 6, but since the base end of the drive cylinder 6 is supported by the support plate 26 via the locking groove 10, this reaction force is applied to the rail 2 side. Therefore, the cylinder 19 of the drive cylinder 6 does not move.

Next, the anchor cylinder 23 is extended, the support plate 26 is removed from the locking groove 10, and the drive cylinder 6 is compressed. At this time, the shoe 5 is stopped on the rail 2 due to the weight of the heavy object 4 and itself, and the cylinder 19
The hanger 7 is pulled to the left and moves to the left. Further, when moving the heavy object 4 to the left from this position, the anchor cylinder 23 is compressed, the support plate 26 is lowered and fitted into the locking groove 10, and the drive cylinder 6 is extended again.

That is, the heavy object can be transferred by repeating the expansion and contraction of the drive cylinder 6 and the operation of attaching and detaching the support plate 26 to and from the locking groove 10. If the same hook as the hook 7 is provided in the shoe 5 and these hooks are operated in synchronization, the cylinder 19
When pulling the hanger 7 to the left, the hook on the shoe side is held in the locking groove 10 of the locking plate 3, so the cylinder 19 etc. can be pulled while the shoe 5 is completely stopped. The hook on the shoe side may be provided on the shoe side and can be expanded and contracted laterally with a cylinder or the like, and may be synchronized with the hook 7 on the drive cylinder side or operated independently, or may be operated manually. It may also be from.

As described above, the heavy object conveying device 1 of the present invention has the following features:
Since the hook on the drive cylinder side is attached to and removed from the locking groove provided in the locking plate on the rail, the rail 2 itself can be constructed from a thin plate, which simplifies the construction of the rail 2 and reduces material costs. is saved, processability is reduced,
It is highly economical.

Furthermore, the structures of the locking plate 3 and the hanging tool 7 are simple and easy to manufacture, and since the number of parts is small, manufacturing is easy and costs can be reduced.

Furthermore, the present invention has the following unique advantages:

First, the shoe holds a slide plate and the shoe slides through the slide plate, so the size and number of the slide plates can be set according to the weight of the heavy object, and even fairly heavy objects can be transported.

Second, the depth of the locking groove is slightly deeper than the axial position of the drive cylinder, so when the drive cylinder is driven with the support plate fitted in this locking groove, the hook 7 is removed from the locking groove. Do not jump upwards.

Thirdly, because the depth of the locking groove is slightly deeper downward than the axis of the drive cylinder, and because the holding part is close to the locking plate, the bending moment due to the thrust of the drive cylinder is applied to the support plate. Only a shear load acts on the support plate. Therefore, the support plate can be made small and lightweight.

Fourth, since the support plate is connected to the anchor cylinder, the distance between the two is small, and the eccentric load from the anchor cylinder is minimal.Furthermore, the support plate is guided in the vertical direction by the groove in the holding part, so it is not supported. The plate is reliably attached to and removed from the locking groove, allowing smooth operation.

[Brief explanation of the drawing]

FIG. 1 is a front view of a heavy object conveying device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a partial vertical sectional view taken along line A-A in FIG. be. 2...Rail, 3...Latching plate, 4...Heavy object,
5... Shuu, 6... Drive cylinder, 8... Plate, 9... Slide plate, 10... Locking groove, 22...
...Holding part, 23...Anchor cylinder, 24...
Groove, 26... support plate.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A shoe on which a heavy object is placed is slidably disposed on a rail via a slide plate held in the shoe, and this shoe has a longitudinal extension according to the extension of the drive cylinder. In a device for transporting heavy objects that is pushed in a direction, a locking plate is erected on both sides of the rail, and a large number of locking grooves slightly deeper than the axis of the drive cylinder are formed at the top of the locking plate. established,
A holding part close to the locking plate is fixed to the drive cylinder, a groove is formed on the outer periphery of the holding part, a support plate is fitted into the groove so as to be movable up and down, and an anchor cylinder is further fitted to the holding part. The anchor cylinder is connected to the support plate, and as the anchor cylinder expands and contracts, the support plate is guided by the groove of the holding part and removably engages with the locking groove of the locking plate. Equipment for transporting objects. (2) The heavy object conveyance device according to claim 1, in which the rail is comprised of a plate body and a slide plate on the plate body. (3) The heavy object conveying device according to claim 1 of the utility model registration claim, wherein the support plate is bifurcated.