JPH0720140Y2 - Jig for tilting long cylinder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a jig for erecting or rolling over a long cylindrical body (for example, a cast iron pipe having a length of 5 m) in the necessity of a working process.

[Prior Art] An opportunity to hang a long cylindrical body, which is placed horizontally on the ground with its axis being horizontal, in the vertical direction is often encountered in the manufacturing process.

A common practice is to form a loop of knitted loops on both ends of a wire rope, one loop underneath the cylinder and the other on the outside of the cylinder. Through this, if one end is hoisted with a suitable hoist or clean, the wire is tightly wound while squeezing the outer surface of the cylinder. While raising the angle with the plane greatly, and finally the tube end, which is the fulcrum, is lifted and leaves the ground, the cylindrical body becomes hollow in a state tilted diagonally by the amount corresponding to the biased lifting position of the wire rope. Levitate. In order to stand further upright from the ground, the cylinder is usually lifted at the desired position, and the lowermost end of the slanted cylinder end comes into contact with the ground, while the Clen driver guides the hook position in the direction opposite to the tilt. However, it is often the case that the pipe end, which has been inclined for the first time, is hung gradually and the pipe end is straightened upright to the ground.

Also, for example, a large number of mass-produced products, such as a centrifugal cast iron pipe manufacturing plant, are subjected to heat treatment while standing upright day and night,
In so-called vertical annealing furnaces, the number of products to be processed at one time is large, and it is inefficient to repeat slinging work of the same type in a small work space. The cylinder is efficiently erected by a mechanical structure such as.

[Problems to be Solved by the Invention] In the conventional technique, the single suspension of the wire rope that passes through the loop involves lifting the lateral cylinder from the end, and finally leaving the ground to levitate diagonally into the space. The skill of driving operation such as Clen is a big factor. If the hoisting speed or the movement of the hook position at the moment of levitation is improper, the cylindrical body will largely recoil and oscillate in the space, and the product will not be dangerous because it is a product with a large length and a large weight. May invite. In addition, in order to place a large cylindrical body that has been suspended diagonally upright on the horizontal ground,
It is necessary to move the hook in the opposite direction to the slant while suspending it.This is also a work that depends on the skill of the Clen driver, and if the balance of both movements is lost, the cylinder will fall in an unexpected direction at the moment of touchdown. It has been counted as one of the causes of industrial accidents caused by accidents.

In addition, although the dedicated erection equipment described in the latter half of the previous section guarantees stable work, the equipment to be handled becomes large and the equipment becomes large-scale, and the investment required for this installation is unavoidably large. Therefore, unless the operating rate is high enough to process a considerable number of products day and night, the low investment efficiency is unbearable from the ordinary economic point of view.

As described above, the present invention says that eliminating industrial accidents is the greatest proposition of the manufacturing industry, but in order to solve the problems of the factory that are difficult due to the economic dilemma, it is a convenient and safe long cylindrical body. The purpose is to provide a jig for tilting.

[Means for Solving the Problems] The jig for raising and lowering a long cylindrical body according to the present invention is provided on the outer peripheral surface of a flanged cylindrical body in which a flexible material is attached to the inner peripheral surface and is separably divided into two parts. , Projecting flanges having an L-shaped cross section that are symmetrical to each other on the diameter of the flanged cylinder, and engaging holes with the diameter lines of the flanged cylinder intersecting the flanges as the axes, respectively, are shackles. The above problems have been solved by fitting the above.

[Operation / Embodiment] FIGS. 1 (a) and 1 (b) are a plan view and a front view (both of which are partially sectional views) showing an embodiment of the present invention.

As shown in both figures, the flanged cylindrical body 1 is composed of two-divided cylindrical bodies 1A and 1B in which a flexible material (specifically, soft rubber) 2 is attached to the inner surface, and can be assembled and separated by bolts 3 and nuts 4 freely. Has been done.

The diameter line D passing through the center of the flanged cylinder is a semi-cylindrical body 1A, 1B.
Two flanges 5A, 5B having an L-shaped cross section are provided on the outer periphery so as to be distributed to symmetrical positions intersecting with, and engaging holes 6A, 6B whose axes are lines at which the flanges and the diameter line D intersect. And shackles 7A and 7B are inserted into the holes and assembled.

FIGS. 2 (a) and 2 (b) are front views showing the operation of the present invention. In FIG. 2 (a), a long cylindrical body P (for example, centrifugal cast iron pipe for water supply, which is placed on the ground sideways). When the flanged cylindrical body 1 is inserted near one end with a length of 5 m and an outer diameter of 1 m to 2.6 m and the bolts and nuts are tightened, the action of a flexible material appears and the length of the outer surface of the long cylindrical body P may be slightly different. All the irregularities of are absorbed by the change in elasticity, and both surfaces are completely conformed and tightly pressed.

Hook H that hangs on the tip of a cleanse or hoist
Then, the suspending ring, the wire rope, and the suspending tool A formed of hooks at both ends are engaged, and the tip hooks of the suspending tool A are engaged with the shackles 7A and 7B, respectively. If the hook H is lifted by operating the clamp in this state, this action is transmitted to the shackle through the lifting tool A and lifted up. However, as the tip 71 of the shackle moves upward, the shaft at the rear end is moved. 72 gently starts to rotate in the engaging hole, and the long cylindrical body P gradually rises while drawing an arc centered on the other end, and if the lifting and the guide of the hook H in the lateral direction are appropriate. As shown in the figure (b), it can be quietly lifted up into the space without any shaking. Therefore, by moving to a desired position in this state and hanging it down as it is, it can be quietly placed on the ground in an upright state.

FIG. 3 is a front view showing the action when the long cylindrical body P in the upright state is laid down sideways. As shown in the figure, the wire of the lifting tool A is moved to either the front or back side of the long cylindrical body P. The hackers B, which are formed by bending both ends of the iron rod into a semi-annular shape, are engaged with both wires.
When the hook H is hoisted in this state, the wire of the hanger A is squeezed by the hacker and pushes the outer surface of the long cylindrical body to incline it obliquely, and when the hook H is gently lowered as it is, the long cylindrical body P Draws an arc centered on a point at the bottom edge and changes its posture to the sideways state by its own weight. Also in this case, the posture of the long cylindrical body is changed by turning the shaft 72 of the shackle so that the upper end portion is evenly tilted to the left and right. is there.

[Effects of the Invention] As described above, the tilting jig according to the present invention smoothly converts the upward / downward movement of the Clenfuk into the axial rotation of the shirt, thereby smoothly tilting the posture of the long cylindrical body. To do. The occurrence of this peculiar action eliminates the unstable slinging work and contributes greatly to workplace safety.
Further, since the procedure to be added is halved as compared with the conventional one, it is possible to enjoy a dual effect that work efficiency is also greatly improved.

[Brief description of drawings]

1 (a) and 1 (b) are a plan view and a front view showing the embodiment of the present invention, FIGS. 2 (a) and 2 (b) are a front view showing the operation of the embodiment, and FIG. 3 is another operation. FIG. 1 ... Cylindrical body with collar, 2 ... Flexible material 5 ... Flange, 6 ... Engagement hole 7 ... Shackle, P ... Long cylinder H ... Hook such as Clen A ... Lifting tool, B …… Mentha D …… Diameter line of a cylindrical body with a collar

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Kusumoto 1-12-19 Kitahori, Nishi-ku, Osaka City, Osaka Prefecture Kurimoto Iron Works Co., Ltd. (56) References: 62-105991 (JP, U) Actual Kai 61-8684 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A flange having an L-shaped cross section, which is symmetrical with respect to the diameter of the flanged cylindrical body, projects from the outer peripheral surface of the flanged cylindrical body in which a flexible material is attached to the inner peripheral surface of the flanged body so as to be freely separable. A jig for raising and lowering a long cylindrical body, characterized in that an engaging hole having a diameter line of a flanged cylindrical body intersecting with the flange is provided as an axis line and a shackle is fitted therein.