JPS6042024Y2 - Structure drilling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure insertion device used for inserting a structure such as a tube bundle into a cylindrical container such as a heat exchanger.

A conventional example will be explained based on FIGS. 6 to 10.

The figure shows a case where a bundle 51 formed by bundling tube bodies is inserted into a body (container) 50 of a heat exchanger.

As shown in FIG. 6, first, a fuselage 50 and a bundle 51 are prepared, and the fuselage 50 is fixed on the ground.

As shown in FIG. 7, the bundle 51 is then suspended by an overhead crane 52, and a portion of the bundle 51 is inserted into the body 50 from this state.

Then, while moving the crane 52 up and down, the bundle 51 is
Pull in the direction of the arrow to insert the possible range.

As shown in FIG. 8, next, a tree 54 is horizontally applied to the tube plate 53 of the bundle 51, and a retracting wire 56 is let out from a winch 55 provided at the rear of the fuselage 50.
Connect to both ends of the

Then, the retracting wire 56 is gradually wound up and the bundle 51 is completely inserted into the body 50.

In this case, if the insertion resistance of the bundle 51 becomes large, the bundle 51 is moved to the crane 52 as indicated by the arrow in the figure.
Move it up and down.

FIG. 9 shows the insertion completed state. Then, as shown in FIG. 10, the axis ■-■ of the body 50 and the axis ■-■ of the bundle 51 are aligned using a crane or the like.

This completes the series of operations.

However, as is clear from the above work procedure, conventionally, inserting a structure such as the bundle 51 into the body (container) 50 required a great deal of effort.

Further, there was a problem in that it was not easy to align the shafts later.

SUMMARY OF THE INVENTION An object of the present invention is to provide a structure insertion device that can easily and quickly insert containers and structures of various cross-sectional diameters, and can easily perform axis alignment.

In order to achieve the above object, the structure insertion device of the present invention has the following features:
A pit is provided in front of the container support in the direction of structure insertion, which horizontally supports the cylindrical container into which the structure is inserted, and the structure support, into which the structure is placed, can be raised and lowered into and out of the pit. rails extending from in front of the container support stand to a distance from the pit are laid on both sides of the outside of the pit, a structure insertion trolley is movably placed on the rails, and the structure insertion trolley is movably mounted on the rails. The end support, which can be raised and lowered to support the lower surface of the end of the structure, is provided with a stand and a pushing member that comes into contact with the end surface of the structure.

An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 to 5, reference numeral 1 denotes a pair of container supports provided on a floor board 2 and on which containers 3 are placed.

The container 3 forms the body of the heat exchanger and is a cylindrical body with one end closed.

The container support stand 1 is provided with a vibration device 4 such as a pick hammer for vibrating the container 3.

A pit 5 is provided at a position in front of the container support stand 1 on the opening side of the container 3, that is, at a position in front of the structure insertion direction, and a pair of support carts 7a and 7b are provided on a rail 6 laid on the floor of the pit 5. There is.

Each support cart 7a, 7b has a pantograph type lifting device 8.
A structure support stand 9 is provided so as to be movable up and down inside and outside the pit 5.

The lifting device 8 has a hydraulic cylinder 10 for driving up and down.

The structure support stand 9 is provided with a support protrusion 12 on which a structure 11 is placed.

The structure 11 is a bundle in which a large number of heat exchange tubes 13 disposed inside the container 3 are bundled together with a mounting plate 14 .

Rails 15 are laid on the floor plate 2 on both sides of the outside of the pit 5, and a structure insertion cart 16 is movably placed on the rails 15.

The rail 15 is provided from the front of the container support 1 to a distance farther than the pit 5.

The structure insertion cart 16 has an end support 17 that supports the lower surface of the end of the structure 11 and a push member 18 that comes into contact with the end surface of the structure 11, and a cart traveling device 19 on the floor plate 2. Towed by.

The bogie traveling device 19 includes a winch 20 at one end of the rail 15.
A wire rope 21 with both ends wound in opposite directions is hung over a sheave 22 at the other end of the rail 15, and the middle of the wire rope 21 is fixed to an insertion cart 16.

The sheave 22 serves as a turning point for the wire rope 21.

A guide column 23 is erected at the center in the width direction of the carriage body 16a of the structure insertion carriage 16, and a push frame 24 is provided horizontally so as to be movable up and down along the guide column 23.

The push frame 24 engages with the lower end of a screw shaft 26 that is screwed into a rotating bundle 25 at the upper end of the guide column 23, and moves up and down together with the screw shaft 26 by rotating the rotating bundle 25.

A guide groove 28 is provided along the entire length of the front surface of the push frame 24, and the push member 18 is slidably attached to the guide groove 28.

The pushing member 18 consists of a metal mounting frame 29 and a piece of wood 30.

31 is a reinforcing member that supports the guide column 23.

A support frame 32 consisting of a pair of opposing walls is erected on both sides of the truck main body 16a, located in front of the guide column 23, and both ends of an elevating frame 33 are supported by both support frames 32 so as to be movable up and down.

A screw shaft type elevating device 34 for elevating and lowering the elevating frame 33 is provided within both support frames 32 .

The lifting and lowering devices 34 on both sides are connected to each other by a transmission shaft 35 and driven by a geared motor 36.

A screw shaft 38 to which a bundle 37 is fixed to one end is disposed within the lifting frame 33.

The screw shaft 38 is rotatably supported by the lifting frame 33 at both ends and the center, and both sides of the screw shaft 38 from the center are formed with threads in opposite directions.

Two end supports 17 are arranged on the upper surface of the lifting frame 33,
The base 17 of these end receivers is screwed onto a screw shaft 38 through a nut portion 39.

The end support base 17 consists of a mounting frame 40 having a nut portion 39 and a piece of wood 41.

Next, the operation of the above configuration will be explained.

First, a crane device or the like is used to move the container 3 as shown in Figure 1.
is placed on the container support stand 1, and the support cart? The structure 11 is placed on the structure support stand 9 of a and 7b.

Next, the structure support platform 9 is raised by the lifting device 8,
The axial center position of the structure 11 is made to coincide with the axial center position of the container 3.

Thereafter, the structure insertion cart 16 is moved by the cart traveling device 19, and the pushing member 18 is brought into contact with the end surface of the structure 11.

At this time, by raising and lowering the push frame 24 by the rotation of the rotating bundle 25, the vertical position of the push member 18 is aligned with the axis position of the structure 11, and the distance between the left and right push members 18 is adjusted according to the diameter of the structure 11. Adjust the spacing manually.

Thereafter, by raising the elevating frame 33, the end receiver brings the platform 17 into contact with the lower surface of the structure 11.

The distance between the left and right end supports 17 is adjusted by rotating the bundle 37 according to the diameter of the structure 11.

When the preparation is completed in this way, the winch 20 is driven to move the insertion carriage 16 forward, and the pushing member 18 pushes the structure 11 and inserts it into the container 3.

At this time, both support trolleys? a and 7b move forward together with the structure 11 due to friction with the structure 11.

When the front support cart 7a hits the front end wall of the pit 5 and stops, the structure 11 slides on the structure support base 9 of the support cart 7a and moves forward.

The rear support cart 7b moves forward until it hits the front support cart 7a.

Support trolley like this? While a and 7b move forward, structure 1
1, the support of the base 17 for the end receiver of the structure insertion carriage 16 is reduced.

By vibrating the container 3 with the vibration device 4 while inserting the structure 11, smooth insertion is achieved regardless of the contact between the inner surface of the container 3 and the structure 11.

When the rear support cart 7b advances until it comes into contact with the front support cart 7a and stops, the structure support stands 9 of both the support stands 7a and 7b are lowered, and after this, the end receiver of the structure insertion cart 16 is lowered. The structure 11 is inserted while the weight of the structure 11 is supported by the stand 17.

Thereby, the entire structure 11 can be inserted into the container 3 without the structure support stand 9 getting in the way.

As explained above, according to the present invention, it is possible to quickly and easily insert a structure, and it is also possible to easily align the axes of containers with various cross-sectional diameters and structures.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with Figure 1 being a front view and Figure 2 being a front view.
3 is an enlarged side view of the insertion cart, FIG. 4 is a front view thereof, and FIG. 5 is a plan view thereof. 6 to 10 show a conventional example, and FIGS. 6 to 9 are perspective views, respectively, and FIG. 10 is a front view of the end of the body. 1...Container support stand, 3...Container, 4.
... Vibration device, 5 ... Z, 7a, 7b
...Support trolley, 8... Lifting device, 9.
...Structure support stand, 11...Structure, 1
3...Pipe body, 15...Rail, 16.
... Structure insertion trolley, 17 ... End support is stand, 18 ... Push member, 19 ... Dolly traveling device, 23 ...・Guide pillar, 24...
・Push frame, 32...Support frame, 33...
... Lifting frame, 34... Lifting device, 36...
... Guard motor, 38 ... Screw shaft, 39
...Natsuto.

Claims (1)

[Scope of utility model registration request] A pit is provided in front of the container support in the direction of structure insertion, which horizontally supports the cylindrical container into which the structure is inserted, and the structure support, into which the structure is placed, can be raised and lowered into and out of the pit. rails extending from in front of the container support stand to a distance from the pit are laid on both sides of the outside of the pit, a structure insertion trolley is movably placed on the rails, and the structure insertion trolley is movably mounted on the rails. A structure insertion device, characterized in that an end support that can be raised and lowered to support the lower surface of an end of the structure is provided with a stand, and a push member that comes into contact with the end surface of the structure.