JPH116589A - Flexible joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect all the equipments by adjusting the connections without using an exclusive joint piping for each of the equipments, regarding a flexible joint connecting an equipment side piping and a permanent piping on a fixing side. SOLUTION: Each of an equipment side piping 13 and a permanent piping 18 is different in dimensions between both side surfaces and cores each other. Joint pipings 1, 2 are fixed to the piping 18, a piping 4 is mounted on the piping 13, a slider 3 is slidably fitted into the piping 4 and sliding of the slider 3 is made possible within space 12 between the joint pipings 1, 2. A cylinder supporting member 14 is mounted on the joint piping 2 and each of hydraulic cylinders 10, 11 is mounted. Because center deviation and the dimensions between both side surfaces extend and contract the hydraulic cylinder 10 and the cylinder 11, respectively, and the piping 4 can be adjusted by being moved in X, Y directions for the permanent piping 18, all the equipment side pipings can be connected by being adjusted for the permanent piping 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible joint, and is applied to a connection in a case where a connecting position (core, face-to-face) between pipes is shifted.

[0002]

2. Description of the Related Art Conventionally, when different devices are connected by piping, each device has a flange having a unique shape and a mounting position, and the piping of these devices will be connected to a permanently installed permanent piping. Then, connection cannot be made as it is.
FIG. 3 shows a typical example of connecting conventional pipes having different shaft cores or planes.

In FIG. 3, reference numeral 13 denotes a pipe on the side of the device, which has a core shaft or a diameter and a flange unique to the device.
Reference numeral 18 denotes a permanent pipe, in which the position of a plant or the like is fixed. When connecting the device side pipe 13 and the permanent pipe 18, the diameter may be different from each other,
The diameters and shapes of the flanges 13a and 18a, particularly the mounting positions thereof, are different. Therefore, in order to connect them, they are fitted with the flanges 13a and 18a on both sides, respectively.
Both are connected by a temporary adjustment pipe 20 connecting them.
This temporary adjustment pipe 20 had to be manufactured individually as a dedicated connection pipe for each plant and equipment.

[0004]

As described above, in the connection between the conventional equipment and the fixed-side pipe, a dedicated joint pipe is manufactured each time for the difference in the fitting position of the pipe which differs depending on each equipment. In addition to this, the cost increases and time is required for connecting the pipes.
Also, when connecting the joint pipe to the equipment side and the permanent pipe side, the pressure resistance of the connection part becomes a problem, so that sufficient attention must be paid to its attachment, and time and labor are required for the connection work.

Accordingly, the present invention has flexibility in connecting such a device side to a permanent pipe, can adjust the distance between planes and misalignment of the pipes, takes into consideration the pressure resistance, as well as the conventional technique. It was made to provide a flexible joint that can be connected to the permanent piping of all devices with one type of joint without having to manufacture dedicated joint piping for each device is there.

[0006]

The present invention provides the following means in order to solve the above-mentioned problems. A flexible joint for connecting the equipment side pipe and the fixed side pipe,
A slider having a cylindrical portion fitted on the outer periphery of the device-side pipe via a packing so as to be slidable in the axial direction (X direction) and a flange at an end; a flange surface of the slider attached to the fixed-side pipe; And a joint pipe for slidably gripping from both sides via packing and connecting the apparatus side pipe movably in a direction (Y direction) orthogonal to the axial direction; and a support member supported by the fixed side pipe, A first cylinder capable of moving the device side piping in the X direction; and a second cylinder supported by the fixed side piping by a support member and capable of moving the device side piping in the Y direction. Flexible joint characterized by becoming.

According to the present invention, when connecting the equipment-side piping and the fixed-side piping, the two-piping can be connected by adjusting the dimension between the two surfaces in the axial direction and adjusting the misalignment of the two pipings. X
The adjustment of (direction) is performed by extending and contracting the first cylinder, and moving the device side piping in the X direction via the slider. Since the flange of the slider is slidably supported by a joint pipe attached to the fixed-side pipe, the apparatus-side pipe moves with respect to the fixed-side pipe and is adjusted to a predetermined dimension between surfaces.

[0008] To adjust the misalignment (Y direction), the second cylinder is expanded and contracted, and the apparatus side pipe is slid with respect to the joint pipe via the slider flange to adjust the position. The joint pipe is attached to the fixed pipe, and the slider flange can slide in this joint pipe in the Y direction. Therefore, the equipment pipe moves in the Y direction so that the axis matches the fixed pipe. Can be matched.

Further, since the flexible joint of the present invention is in contact with the sliding surface via the packing, sealing performance against water and pressure resistance are secured. In this way, while maintaining the sealing performance and pressure resistance, the above-mentioned dimensional difference between the surfaces and the misalignment can be adjusted. All pipe connections can be made with the flexible joint of the present invention having the same specifications without manufacturing a joint pipe.

[0010]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a sectional view of a flexible joint according to an embodiment of the present invention. In the figure, reference numeral 13 denotes a device side pipe, and reference numeral 18 denotes a permanent pipe, which is the same pipe as the conventional one shown in FIG. The present invention is a flexible joint provided between the pipes 13 and 18 that enables three-dimensional adjustment, and will be described in detail below.

In FIG. 1, reference numeral 1 denotes a joint pipe attached to a flange 18a of a permanent pipe 18, and reference numeral 2 denotes a joint pipe, which is provided to face the pipe 1 to constitute a joint portion. Reference numeral 3 denotes a slider which is slidably supported in a space 12 between the joint pipes 1 and 2. Reference numeral 4 denotes a pipe attached to the flange 13a of the apparatus side pipe 13, and the slider 3 is slidably fitted around the outer periphery of the tip.

Reference numeral 5 denotes a packing, which has a trapezoidal shape made of rubber or the like, is inserted into the groove 3a of the slider 3, and seals between the slider 3 and the side surface of the joint pipe 2. Reference numeral 6 denotes a packing, which is also made of rubber and has a trapezoidal shape, is inserted into the groove 3b of the slider 3, and secures a seal between the slider 3 and the outer peripheral surface of the pipe 4. 7 is also a packing,
It is inserted into the groove 1a of the joint pipe 1 and seals the joint pipes 1 and 2 together. 8 is also a packing, which is inserted into the groove 1b of the joint pipe 1, and
And the surface of the flange 18a of the permanent piping 18 is sealed. 9 is also a packing, which is inserted into the groove 4a of the pipe 4 and seals between the flange of the pipe 4 and the flange 13a of the equipment side pipe 13.

Reference numeral 14 denotes a cylinder support member, which is attached to the joint pipe 2 and has a horizontal portion 14a and a vertical portion 14b. Reference numeral 10 denotes a hydraulic cylinder, which is attached to a horizontal portion 14a of a cylinder support member 14 and has an arm 1
0a expands and contracts in the Y direction. Numeral 11 denotes a hydraulic cylinder, which is attached to the vertical portion 14b of the cylinder support member 14, and whose arm 11a expands and contracts in the X direction. Reference numeral 12 denotes a space between the joint pipes 1 and 2, in which the flange of the slider 3 can slide and move in the Y direction in this space.

Numeral 15 is a member fixed to the flange of the pipe 4, to which the tip of the arm 11a of the hydraulic cylinder 11 is connected.
5 is pushed or pulled in the X direction and the equipment side piping 1
3 can be slid via the packing 6 so as to be movable with respect to the permanent pipe 18, and the dimensional difference between the surfaces of both pipes can be adjusted.

Reference numeral 16 denotes a joint at the tip of the arm 10a of the hydraulic cylinder 10. Reference numeral 17 denotes a member fixed to the pipe 4, which moves the apparatus-side pipe 13 and the pipe 14 in the Y direction by expansion and contraction of the arm 10a. .

Although not shown, when the hydraulic cylinder 11 expands and contracts and the pipe 4 moves in the X direction, the member 1
7 is also movable with respect to the joint 16 so that the members 1 can move.
7 has a groove in the X direction, and the member 15 also has the tip of the arm 11a of the hydraulic cylinder 11 when the hydraulic cylinder 10 expands and contracts in the Y direction and the pipe 4 moves in the Y direction. On the other hand, a groove is formed in the Y direction so as to be movable.

In the flexible joint having the above structure, the piping 13 on the equipment side is connected to the piping 4 by bolts, and the surface distance between the piping 13 on the equipment side and the permanent piping 18 differs depending on the shape of the equipment. The pipe 4 can slide on the fixed side at the packing 6, that is, at the slider 3. Therefore, the dimensional difference between the surfaces can be adjusted by expanding and contracting the hydraulic cylinder 11 and moving the pipe 4 in the X direction.

Next, a misalignment between the pipe 13 and the permanent pipe 18 occurs due to the shape of the equipment, and this is also adjusted by expanding and contracting the hydraulic cylinder 10. When the hydraulic cylinder 10 is expanded and contracted, the pipe 4 receives a force in the Y direction via the joint 16, but the slider 3 can slide and move in the space 12, so that the offset of the pipe 4 with respect to the permanent pipe 18 can be easily adjusted. can do. Also, the sealability is ensured by the packings 5 to 9, so that the sealability is ensured, and the adjustment of the distance between the pipes 13 and 18 and the adjustment of the misalignment can be easily performed.

FIGS. 2A and 2B are sectional views showing an adjustment state of the above-described flexible joint, in which FIG. 2A shows a state before adjustment and FIG. 2B shows a state after adjustment. In FIG. 1A, the device-side pipe 13 and the pipe 4 have not been adjusted in dimension between the surfaces and have a misalignment. However, as shown in FIG. The slider 4 is moved in the Y direction, the center is aligned, the hydraulic cylinder 11 is operated, and the pipe 4 is slid in the X direction by the packing 6 of the slider 3 to adjust the dimensional difference. And permanent piping 1
8 can be combined at an appropriate position.

[0020]

The present invention relates to a flexible joint for connecting a device side pipe and a fixed side pipe, which is fitted to the outer periphery of the device side pipe via a packing so as to be slidable in the axial direction (X direction). A slider having a cylindrical portion and a flange at an end; attached to the fixed-side pipe, slidably gripping the flange surface of the slider from both sides via packing, and orthogonally intersecting the device-side pipe with the axial direction. Direction (Y direction)
A first cylinder movably connected to; a first cylinder supported by the fixed-side pipe by a support member; and a first cylinder capable of moving the device-side pipe in the X direction; supported by a support member by the fixed-side pipe; A second cylinder that enables the device-side piping to move in the Y direction. With such a flexible joint, the first cylinder can be operated to adjust the axial direction by the second cylinder.
It is possible to adjust the misalignment by operating the cylinders, and the sealability is secured, so there is no need to manufacture dedicated joint pipes for various devices as in the past, and this flexible joint of the same specification This allows simple adjustment of the piping connection of all equipment.

[Brief description of the drawings]

FIG. 1 is a sectional view of a flexible joint according to an embodiment of the present invention.

FIGS. 2A and 2B are cross-sectional views illustrating an adjustment state of a flexible joint according to an embodiment of the present invention, in which FIG. 2A illustrates a state before adjustment and FIG.

FIG. 3 is a side view of a conventional flexible joint.

[Explanation of symbols]

 1, 2 Joint piping 3 Slider 4 Piping 5-9 Packing 10, 11 Hydraulic cylinder 12 Space 13 Equipment side piping 14 Cylinder support member 15, 17 Member 16 Joint section 18 Permanent piping

Claims (1)

[Claims] 1. A flexible joint for connecting a device side pipe and a fixed side pipe, the cylindrical portion being fitted to the outer periphery of the device side pipe via a packing so as to be slidable in the axial direction (X direction). A slider having a flange at an end; attached to the fixed-side pipe, slidably gripping the flange surface of the slider from both sides via packing, and holding the apparatus-side pipe in a direction orthogonal to the axial direction (Y direction). ), A first cylinder supported by a support member on the fixed-side pipe, and a first cylinder capable of moving the equipment-side pipe in the X direction; supported by a support member on the fixed-side pipe. And a second cylinder capable of moving the device-side pipe in the Y direction.