JPS5939268Y2 - pipe fittings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pipe fitting, and more particularly to an automated pipe fitting that is incorporated into a pressure oil piping system feeding a hydraulic jack to quickly and reliably separate and connect the piping system.

A pair of rolling rolls attached to a steel rolling mill are spaced apart from each other by hydraulic jacks disposed between bearing boxes of both rolls to ensure a predetermined gap between them.

A part of the hydraulic oil pipe system that supplies oil to this hydraulic jack consists of oil passages drilled into the bearing box itself.The rolling rolls are frequently replaced due to rolling work specifications, maintenance, etc. In this case, it is necessary to manually remove or restore the pressure oil pipe system hose from the bearing box each time it is replaced, which is labor and time consuming and inefficient.

The present invention aims to solve this type of problem that occurs in the piping system of hydraulic jacks installed in rolling mills.

The purpose of this invention is to provide a joint for the hydraulic jack system that automatically separates the hydraulic jack's hydraulic pipe system when the roll of a steel rolling mill is removed, and automatically connects it when the roll is loaded, thereby streamlining roll replacement work. It's about getting.

According to the present invention, in order to achieve the above object, the first pipe end member is attached to the end of one pipe 20 and has a vertical planar end face and a fluid passageway equipped with a closing valve that opens to this end face. 1, a fluid passage 7 provided with another end face in the form of a vertical plane that is crimped onto the end face, and a closing valve that opens into this other end face.
and a second tube end member 2 attached to the end of the other tube.
In a pipe joint consisting of The first tube end member 1 is fitted into the vertical movable support member 3 connected to the column 4 via a telescope mechanism 5 equipped with a spring 16 biasing the two tube end members toward the second tube end member, and the first tube end member 1
a horizontal rod 8 which is inserted into the lower side of the first tube end member located inside the movable support member when separated from the tube end member and supports the first tube end member at a predetermined height; The second pipe end member 2 extends horizontally from the end face at a position facing the horizontal rod 8, and when the second pipe end member is crimped onto the first pipe end member, it engages with the horizontal rod and holds it. The support arm 12 is provided with a support arm 12 that is retracted from the movable support member and replaces the horizontal rod 8 to hold the first tube end member at a predetermined height.

Now, an embodiment of the apparatus of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 1, there is shown a rolling mill 25 having an upper roll 21 and a lower roll 22, and a joint 10 of the present invention mounted adjacent thereto.

The upper and lower rolls 21 and 22 have bearing boxes 26A and 2, respectively.
6B, and also has a back up roll of 23.24.

In the first figure, it is assumed that the upper and lower rolls 21 and 22, together with their respective bearing boxes 26A and 26B, are placed not at a predetermined or operating position on the rolling mill 25, but at a position just before reaching the predetermined position.

Therefore, in order to place the rolling rolls 21, 22 together with the bearing box in position, the rolling rolls must be moved a certain distance in the direction of the arrow A.

Although not shown, a hydraulic jack is provided between the lower bearing boxes 26A and 26B, and a pressure oil passage 7 communicating with this hydraulic jack is bored in the bearing box 26B at the right end of the bearing box 26B. A second pipe end member 2 is provided integrally with the pipe end member 2, and the pressure oil passage 7 passes through the second pipe end member 2 and opens in a vertical plane at the right end.

A valve seat 31 having a truncated conical surface is provided at the right end of the passage 7, and a valve body 13 seated on the valve seat 31 is installed in the passage 7 and is constantly pressed against the valve seat 31 by a spring 17.

The tip of the valve body 13 projects outward from the vertical end surface of the second tube end member 2.

The device 10 of the present invention includes the second tube end member 2 described below.
and a first tube end member 1 placed at a position opposite thereto and connected to a pressure oil supply source (not shown) via a hose 20.

The first tube end member 1 is mounted on a movable support member 3 that is horizontally slidably attached to a column 4 separated from the rolling device 25 by a predetermined distance.

The movable support member 3 includes a pair of telescope mechanisms 5 horizontally attached to both upper and lower right ends, and each telescope mechanism 5 is slidably inserted into a sleeve member 27 on the support column 4.

A spring 16 is mounted between the right end of the sleeve member 27 and the left end of the telescoping mechanism 5 to constantly bias the movable support member 3 to the left, ie towards the second tube end member 2.

As shown in FIG. 4, the movable support member 3 is a vertical member having a groove-shaped cross section, and the groove-shaped cross section is opened at a position facing the second tube end member 2, and the first tube end member 1 is disposed on the inner surface. It is provided with a guide groove 19 for raising and lowering.

On the lower side of the first tube end member 1 shown in FIG. 1, a horizontal rod 8 having a roller 28 at its tip protrudes from the right side of the movable support member 3 into the guide groove 19 to raise the first tube end member 1 to a predetermined height. I support it.

The horizontal rod 8 is slidably attached to the inside of a guide member 18 attached to the support column 4, and is constantly pressed to a position protruding into the guide groove 19 by a spring 29 attached to the inside of the guide member 18. .

The first pipe end member 1 has a flat vertical end face crimped to the flat vertical end face of the second pipe end member 2 at the left end, and has a horizontal pressure oil passage 6 opening to this end face. The right end of 6 is connected to a hose 20.

A frusto-conical valve seat 30 is provided at the left end of the passage 6, and a valve body 14 that is seated on the valve seat 30 is attached to the passage 6 and is constantly pressed against the valve seat 30 by a spring 15.

The tip of the valve body 14 protrudes from the end surface of the first tube end member 1.

A pair of guide holes 11 are horizontally bored in the first tube end member 1 at upper and lower positions adjacent to the passage 6.

The guide pin 9, which projects horizontally from the end surface of the second tube end member 2, is fitted into the guide hole 11 at a corresponding position.

The guide pins 9 and the guide holes 11 serve to ensure that the fluid passages 6 and 7 of the two tube end pieces 1 and 2 fit accurately into the core.

A second tube end member 1 is located at a position opposite to the horizontal rod 8.
A support arm 12 is provided on the end surface of the tube end member 2 and projects horizontally from the surface.
is installed.

When the second tube end member 2 is moved to the right and pressed against the end surface of the first tube end member 1, the support arm 12 overcomes the tension of the spring 29 and pushes the horizontal rod 8 to the outside of the guide groove 19, so that it is horizontal. It is replaced by the rod 8 to support the first tube end member 1 and help the guide pin 9 to fit into the guide hole 11, while also supporting both tube end members 1 and 2.
ensure the bonding of

In use, when moving the second tube end member 2 to the right together with the rolling roll 22 and the bearing box 26B, installing it in a predetermined position, and crimping its end surface to the end surface of the first tube end member 1, the spring 16
The first tube end member 1 is pushed to the right together with the movable support member 3 by overcoming the tension, and reaches the position shown in FIG.

In the position shown in FIG. 2, both valve bodies 13 and 14 overcome the tension of the springs 17 and 15, respectively, and separate from the valve seats 31 and 30, allowing the passages 6 and 7 to communicate with each other, thereby opening the pressure oil passage to the hydraulic jack. Open it.

When the rolling roll 22 is removed, the bearing box 26B is simultaneously moved to the left from the predetermined position, so the second tube end member 2 is separated from the first tube end member 1, and at the same time both valve bodies 13, 14 are placed in the closed position. The joint can be removed without causing oil leakage.

As described above, according to the present invention, the piping system can be automatically connected and separated by the coupling without touching the hydraulic piping system by simply installing or removing the bearing box in the operating position. Can be done.

Therefore, the labor and time previously required for disconnecting the hydraulic piping system can be greatly reduced, and this can be used to improve the efficiency of this type of work.

[Brief explanation of the drawing]

1 is a vertical sectional view showing the device of the present invention, FIG. 2 is a sectional view showing the connection position of the device in FIG. 1, FIG. 3 is an end view of the device in FIG. 1, and FIG. It is a sectional view taken along the line ■■ in the figure. DESCRIPTION OF SYMBOLS 1... First tube end member, 2... Second tube end member, 3... Movable support member, 4... Support column, 5... ...Telescope mechanism, 6...Fluid passage, 7...For, 8...Horizontal rod,
9... Guide pin, 10... Device of the present invention, 11... Guide hole, 12... Support arm, 13... Closure Valve body of valve, 14... Valve body of closing valve, 15... Spring, 16...
Spring, 17... Spring, 18... Guide, 19... Guide groove, 20... Hose,
21... Roll roll, 22... For,
23... Back up roll, 24...
・・・Only, 25... Entire rolling mill, 26A,
26B...Bearing box, 27...Sleeve member, 28...Roller, 29...Spring, 30...Valve seat, 31... ·····valve seat.

Claims (1)

[Scope of utility model registration request] A first pipe end member 1 is attached to the end of one pipe 20 and has a vertical planar end face and a fluid passage provided with a closing valve that opens to this end face, and a vertical planar end member 1 is attached to the end of the pipe 20, and a vertical planar end member 1 is attached to the end of the pipe 20. A second pipe is attached to the end of the other pipe and has a fluid passageway 7 with another end face and a closing valve opening into the other end face.
A pipe joint consisting of a pipe end member 2, and a strut 4 in which the first pipe end member 1 is attached at a predetermined distance from the second pipe end member 2.
a vertical movable support connected to the column 4 via a telescope mechanism 5 equipped with a spring 16 extending from the main tube end member 1 toward the second tube end member 2 and biasing the first tube end member 1 toward the second tube end member; When the first tube end member 1 is separated from the second tube end member, the first tube end member 1 is inserted into the lower side of the first tube end member located inside the movable support member. Equipped with a horizontal rod 8 that can move forward and backward to support the tube end member at a predetermined height,
The second pipe end member 2 extends horizontally from the end face at a position facing the horizontal rod 8, and when the second pipe end member is crimped onto the first pipe end member, it engages with the horizontal rod and holds it. A pipe joint characterized in that it is provided with a support arm 12 that is retracted from a movable support part and replaces the horizontal rod to hold the first pipe end member at a predetermined height.