JPS5819449A - Attaching and detaching jig for lower vessel used in rh furnace or the like - Google Patents

Abstract

PURPOSE:To align the flange at the top end of a lower vessel and the flange at the bottom end of an upper flange easily in a short time by oscillating an oscillating frame by means of two forward and backward moving device for revolution between a stationary frame and the oscillating frame, a traveling carriage to be placed thereon with the stationary frame, and a forward and backward moving device for moving back and forth between the stationary frame and the oscillating frame thereby aligning both flanges. CONSTITUTION:An attaching and detaching jig A suspends an oscillating frame 2 for supporting a lower vessel C from the top end thereof in a stationary frame 1 freely oscillatably longitudinally and transversely, and supports the vessel C via elastic bodies 14 on said frame 2. The frame 2 is oscillated by the two forward and backward moving devices for revolution provided between the frame 1 and the frame 2, a traveling carriage B to be place thereon with the frame 1, and a forward and backward moving device 8 for moving back and forth which is provided between the frame 1 and the frame 2 and assumes a right angle to the carriage B. Thus the flange 17 at the top end of the vessel C and the flange at the bottom end of the upper vessel are aligned.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a lower tank attachment/detachment jig used to quickly connect or separate the lower tank to the upper tank of the RH furnace main body when repairing the inside of an RH furnace used for vacuum degassing treatment. Regarding.

The conventional lower tank attachment/detachment jig has a swinging frame for supporting the lower tank swingably mounted inside a fixed frame, and a bolt between the swinging frame and the fixed frame to match the bolt sizes of the flanges of the upper tank and lower tank. It is constructed by placing a plurality of swinging jacks. That is, by driving the swinging jack, the swinging frame is moved vertically and horizontally and rotated to align the flanges.

However, conventionally, the alignment adjustment described above has been performed using eight jacks (51) arranged as shown in Figure 7, making it difficult to adjust the amount of expansion and contraction of each jack, and in particular, fine adjustment is extremely difficult. Therefore, it took a lot of time to align the lower and upper tanks, especially the alignment of the bolt holes.

The present invention was created to solve the above-mentioned drawbacks, and its purpose is to provide a reciprocating device W for aligning the upper tank and the lower tank, particularly aligning the bolt holes of the flanges of both, and positioning the swing frame. It is an object of the present invention to provide a jig for attaching and detaching a lower tank, which can be easily and quickly removed by reducing the number of drive devices such as jacks and cylinders.

In the present invention, a swinging frame for supporting the lower tank is suspended from the upper end of the fixed frame so as to be able to swing vertically and horizontally, and the swinging frame is mounted on the swinging frame. ! In the attachment/detachment jig that supports the lower tank via an elastic body,
□ (i) Two rotating reciprocating devices installed between the fixed frame and the swinging frame, a traveling trolley on which the fixed frame is placed, and a moving carriage installed between the fixed frame and the swinging frame and traveling together. The upper end flange of the lower tank is aligned with the lower end 7 flange of the upper tank by moving the reciprocating device perpendicular to the trolley.

(ii) Two pairs of reciprocating devices are installed between the fixed frame and the swinging frame, one pair of reciprocating devices is used as a reciprocating device for rotating the swinging frame, and the other pair of reciprocating devices are arranged at right angles to each other. (iii) A reciprocating device that swings the swing frame in directions perpendicular to each other is installed between the fixed frame and the swing frame. , and further t
This invention relates to a lower tank attachment/detachment jig for use in an RH furnace or the like, characterized by the configurations (i), (ii), and (iii) above, in which a turntable for supporting the lower tank is placed on an 8-motion frame. In addition, in the above configuration, the reciprocating device includes the jack, cylinder, link mechanism, rack antagon,
This concept includes screws, etc.

The following will specifically explain the embodiments based on the embodiments shown in the accompanying drawings.

Figures 1 to 3 show the process of connecting the repaired upper tank and lower tank. ) is fixed and can move freely, (C) is the lower tank, and (D) is the upper tank. Furthermore, the lower tank wear! To describe the IA jig (A) and the traveling trolley (B) in detail, first, the lower tank attachment/removal jig (A) 3, and (1) the upper part of the traveling trolley (B) whose bottom part will be described later. a fixed frame (2) fixed onto the frame (9);
The fixed frame (
1) A swinging frame suspended vertically and horizontally, (4)
is attached to the upper end of the swing frame to support the lower surface of the lower tank (C). In addition, (6) replaces the fixed frame (1) with the diversion frame (2).
) is a hydraulic cylinder that connects the two, and as will be described later, serves as positive motion means that constitutes the gist of the present invention.

Next, regarding the traveling bogie (B), (η is the traveling bogie body, (
8) is an elevating device that is vertically mounted on the main body of the traveling truck and has a hydraulic cylinder built inside, and (9) is an upper part that is supported by the elevating device 18 and on which the lower tank attachment/detachment jig (A) is placed and fixed. The machine frame, and (2) a rotatable reel for winding up the power cable and hydraulic hose connected to the time drive device, (11)
is the running wheel of the main vehicle (η), and (12) is the prime mover that turns the running wheel.

Lower tank attachment/detachment jig (A) consisting of the above configuration and traveling trolley (B)
), the procedure for attaching the lower tank (C) to the upper tank (D) will be explained with reference to Figures 1, 2 and 3. (C) is suspended via a wire rope (14) by a crane (13), and the receiving part (15) on the lower surface of the lower tank (C) is connected to the support part (4) of the lower tank attaching/detaching jig (A). and the lower tank (C) is supported by the swing frame (2). At this time, the spring (5) alleviates the impact when placing the lower tank (C), which has a considerable weight, and prevents damage to the lower tank attaching/detaching jig (A).

Next, move the traveling trolley (B) on which the lower tank (C) is placed to the prime mover (
12) to drive the RH furnace building (
16). At this point, the lifting device (8) on the traveling trolley (B) has not yet extended, and the traveling trolley (B) on which the lower tank (C) is placed can easily be moved to the house (16
) can be moved downward. and the upper tank (
D) is suspended into the building (16) using a crane, etc., and fixed in the building (16) by the necessary means. The lower tank (C) located directly below the fixed upper tank (D) is moved to the upper machine frame (9), fixed frame (1), and swing frame (2) by driving the lifting device 1 (8).
Then, the lower tank (C) is raised integrally, and the flange (17) of the lower tank (C) and the flange (18) of the upper tank (D) are brought into substantially abutting state. At this point, the upper and lower tanks (
Both flanges (18) and (17) of D) and (C)
) are generally not aligned.

The gist of the present invention is essentially a swinging means that facilitates alignment of the bolt insertion holes, and FIGS. 4, 5, and 6 schematically show embodiments of the swinging means. The configuration and operation of the system will be described below.

In the embodiment shown in FIG. 4, the swinging means is provided between the fixed frame (1) and the swinging frame (2) and in a direction perpendicular to the traveling carriage (
Hereinafter, it will be referred to as "horizontal direction (x)". ), and a pair of rotating cylinders that are similarly provided between the frames (1) and (2) and are installed opposite each other and at a required twist angle with the direction of movement of the first cylinder. It is composed of second cylinders (20> and (20)) for use in the vehicle.In the same figure, movement in the vertical direction (same direction as the traveling truck) is performed by advancing and retreating the traveling truck (B). In this configuration, the horizontal and vertical movement of the swing frame (2) is performed by the traveling cart (B) and the first cylinder (19), respectively, and the rotation in the required direction is carried out by the second cylinder (20), (2
0), and the alignment of the bolt insertion holes is easily achieved by interlocking the movement of the traveling carriage (B) with the three cylinders mentioned above.

Next, a second embodiment of the swinging means is shown in FIG.
), the third cylinder (21) is installed between the fixed frame (1) and the swinging frame (21) and has a forward and backward direction perpendicular to the forward and backward direction of the first cylinder (19). That is, the third cylinder (21) performs vertical movement, the first cylinder (19) performs lateral movement similarly to the first embodiment, and the second cylinder (20
), (20) causes the swing frame (2) to rotate. Further, FIG. 6 shows a third vertical embodiment of the swinging means, in which a turntable (22) is mounted and supported by a lower tank (C) on a moving frame (2).
is the first cylinder (3 cylinders) that are perpendicular to each other between the swing frame (2).
19) and a third sea cylinder (21). The first cylinder (19) and the third cylinder (21) are the swing frame (21) as in the second embodiment.
2), the turntable (22) can be moved in the vertical and horizontal directions, and the turntable (22) is driven by a required drive device (not shown) 4
Therefore, it can be rotated. Therefore, when aligning both the upper and lower tanks, the flange surfaces are aligned using the first cylinder (19) and the second cylinder (21), and then the turntable (22) is rotated in the required direction. The bolt insertion holes can be easily aligned.

In any of the three embodiments described above, the upper and lower tanks can be easily aligned, and after the flange surfaces are aligned, the connection work of the lower tank is completed by tightening bolts. After that, drive the elevator [(8) and move the swing frame (2).
What is necessary is to disengage the lower tank (C) and move the traveling trolley (B) from below the building (16) to the original standby position.

Further, the removal of the lower tank (C) can be easily carried out by reversing the method described above.

As described above, the attachment/detachment jig according to the present invention can have the following effects.

(z) Since the number of drive devices for swinging the II moving frame has been halved, the operation is simple and alignment work can be completed in a short time.

(2) Since the lower tank is supported through an elastic body, the impact caused by the large weight of the lower tank can be alleviated, and breakage and damage to the attaching/detaching jig can be prevented.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are side views showing the process of attaching the lower tank to the upper tank using the film deposition jig according to the present invention, and Figures 4, 5, and 6 are FIG. 7 is a plan view schematically showing various forms of positive motion structures, and FIG. 7 is a plan view showing a conventional swing structure. (A) Lower tank attachment/removal jig (B) Traveling trolley (C) Lower tank (D) Upper tank (1) Fixed frame (2) Swing frame (3) Connecting rod (6) Spring (6) Hydraulic cylinder...) Lifting device (19) 1st cylinder (20) 2nd cylinder (21) 3rd cylinder (22) Turntable Patent applicant Nisshin Steel Co., Ltd. (and 1 other person) Agent
Sunshi Ito (and 1 other person) Figure 4 Figure 6 Figure 5 Figure 7 Figure 1 150

Claims (1)

[Scope of Claims] 1. A swinging frame for supporting the lower tank is suspended from the upper end of the frame so as to be movable vertically and horizontally within a fixed frame, and the lower tank is supported on the swinging frame via a required elastic body. In the attachment/detachment jig, two rotating reciprocating devices are installed between the fixed frame and the diversion frame,
A traveling trolley on which the fixed frame is placed, and a reciprocating device installed between the fixed frame and the swinging frame and making a right angle to the traveling trolley are used to swing the upper end flange of the lower tank to the lower end flange of the upper tank. An attachment/detachment jig for a lower tank used in an RH furnace, etc., which is characterized by matching. 2. An attachment/detachment jig in which a swinging frame for supporting a lower tank is suspended from the upper end of the fixed frame so as to be able to swing vertically and horizontally within a fixed frame, and the lower tank is supported on the swinging frame via a required elastic body, Two pairs of reciprocating devices are installed between the fixed frame and the swinging frame to serve as a reciprocating device for rotating the swinging frame, and the other pair of reciprocating devices are moved in directions perpendicular to each other. An attachment/detachment jig for a lower tank used in an RH furnace, etc., characterized by having a nearly straight forward moving device that oscillates a oscillating frame. 3. An attachment/detachment jig in which a swinging frame for supporting the lower tank is suspended from the upper end of the fixed frame so as to be freely movable vertically and horizontally within the fixed frame, and the lower tank is supported on the swinging frame via a required elastic body, A reciprocating device for swinging the swinging frame in directions perpendicular to each other is installed between the fixed frame and the swinging frame, and a turntable for supporting the lower tank is further placed on the swinging frame. A jig for attaching and detaching the lower tank used in RH furnaces, etc.