JP2002089747A - Spring hanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spring hanger capable of optionally selecting allowable weight and allowable movement quantity. SOLUTION: In the spring hanger for supporting piping of a plant equipment, a spring 15 of which one end is fixed to a casing 13 is accommodated in the casing 13 and a twist transmission member 16 connected to the other end of the spring 15 is rotatably accommodated in the casing 13. An approximately horizontal arm 14 for supporting the piping 40 is connected to the twist transmission member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring hanger for supporting pipes of plant equipment and the like, and more particularly to a spring hanger capable of appropriately selecting an allowable weight and an allowable displacement of the supported pipes.

[0002]

2. Description of the Related Art A conventional spring hanger will be described with reference to FIGS.

FIG. 3 is a schematic view showing a state in which a pipe is supported using a conventional spring hanger, and FIG. 4 is a schematic view showing the structure of a conventional spring hanger.

As shown in FIG. 3, a pipe 40 of a plant facility or the like expands or contracts depending on the pipe temperature or the like.
In order to move as shown by dotted lines 40a and 40b in the figure, the spring hanger 30 needs to support the pipe 40 while allowing the movement of the pipe 40 due to heat fluctuation or the like.

[0005] As shown in FIG. 4, the conventional spring hanger 30 includes a spring 35 housed in a space surrounded by a casing 33 and a pedestal 32.

One end of the spring 35 (the lower end in the figure)
Is mounted on a pedestal 32, and the other end (upper end in the figure) is mounted on a moving plate 31 provided to be able to move up and down in a casing 33.

The moving plate 31 has a pipe 40 connected to a rod 39.
And is mounted and supported via a mounting member 38.

When the pipe 40 moves, the moving plate 31 moves up and down in the casing 33, and the spring 35 compresses or expands in accordance with the movement, thereby supporting the pipe 40 while allowing the movement of the pipe 40 due to heat fluctuation. can do.

[0009]

By the way, there are various sizes of the pipe 40, and naturally, the weight of the pipe 40 also varies depending on the size.

[0010] Further, since the state of heat fluctuation differs depending on the installation location of the pipe 40, the amount of movement of the pipe 40 differs depending on the installation location.

However, in the conventional spring hanger 30, the allowable weight and the allowable movement amount of the pipe 40 to be supported are determined by the spring 35, and the allowable width is small.

That is, the allowable weight is determined by the shape and size of the spring 35, and the allowable movement amount is
5 is determined by the height H.

For this reason, the conventional spring hanger 30
In this case, various types of spring hangers having different designs depending on the size of the pipe 40 or the installation location had to be used.

It is an object of the present invention to provide a spring hanger which solves the above-mentioned problems and which can arbitrarily select an allowable weight and an allowable movement amount.

[0015]

According to one aspect of the present invention, there is provided a spring hanger for supporting piping of plant equipment or the like, wherein a spring having one end fixed to the casing is housed in the casing. A torsion transmitting member connected to the other end of the spring is rotatably housed, and a substantially horizontal arm for supporting the pipe is connected to the torsion transmitting member. is there.

According to a second aspect of the present invention, the pipe can be attached to an arbitrary position in the length direction of the arm, and by changing the attachment position of the pipe to change the point of application of the load, the pipe to be supported can be mounted. The spring hanger according to claim 1, wherein the allowable weight and the allowable movement amount can be appropriately selected.

According to a third aspect of the present invention, there is provided the spring hanger according to the first or second aspect, wherein the arm is connected to the shaft of the torsion transmitting member at a variable mounting angle.

According to a fourth aspect of the present invention, a plurality of mounting holes are formed in the length direction of the arm, and one end of a rod supporting a pipe is detachably mounted in the mounting hole.
It is a spring hanger in any one of-3.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing a state in which a pipe is supported using a spring hanger according to one embodiment of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG.

As shown in FIG.
Is roughly composed of a pedestal 12 fixed to the fixed side 11, a casing 13 integrally attached to an upper portion of the pedestal 12, and an arm 14 extending substantially horizontally outside the casing 13. And is attached to the arm 14 via the attachment member 38.

The casing 13 has a horizontal cylindrical shape, and has one end (the left end in FIG. 2) inside the casing 13.
And a torsion transmitting member 16 connected to the other end (the right end in FIG. 2) of the coil spring 15.

The torsion transmitting member 16 is rotatably provided at a substantially central portion in the casing 13 via a bearing 17. One end of the torsion transmitting member 16 extends out of the casing 13, and the other is a right end in the casing 13. , And a rotary plate 19 integrally mounted.

The right end of the coil spring 15 is connected to the rotating plate 19.

The arm 14 has an engaging portion 18a formed at the end of a shaft 18 extending outside the casing 13.
By engaging an engagement hole 14a formed in the arm 14, the arm 14 is connected to the shaft 18 so as not to rotate relatively.

In this embodiment, the engaging portion 1 of the shaft 18
8a is formed in a quadrangular sectional shape, and the engaging hole 14a of the arm 14 is formed in an octagon having a size capable of engaging with the engaging portion 18a. Engagement hole 1 of arm 14
The angle of attachment of the arm 14 is set to 45 ° by selectively engaging each corner of the engagement portion 18a with each corner of the engagement portion 18a.
Each can be adjusted.

This adjustment angle is not limited to 45 °.
The engaging portion 18a and the engaging hole 14a may be formed in a polygonal shape having more components to allow more fine adjustment.

The arm 14 is provided with four mounting holes 20, 20,... For engaging the rod 39 and supporting the pipe 40 in the longitudinal direction of the arm 14. Can be engaged with the holes 20, 20,. That is, by selecting the mounting holes 20 for engaging the rod 39, the pipe 40 can be mounted at an arbitrary position in the length direction of the arm 14.

The number of the mounting holes 20 is not limited to four, but may be smaller or larger.

The engagement means between the rod 39 and the mounting hole 20 is as follows.
For example, the hook 21 may be formed at the upper end of the rod 39 and the hook 21 may be engaged with the mounting hole 20.

However, the present invention is not limited in this respect, as long as the rod 39 can be attached to an arbitrary position in the length direction of the arm 14, and other engaging means may be used.

Next, the operation of the present invention will be described.

First, the mounting member 38 is attached to the pipe 40 to be supported.
And the rod 39 is mounted, and the mounting position of the pedestal 12 of the spring hanger 10 is adjusted so that the pipe 40 can be supported with the rod 39 being vertical.

Next, the arm 14 is rotated, and the mounting hole 20 is
The pipe 40 is supported by engaging the upper end of the rod 39.

When the arm 14 is rotated by the load of the pipe 40, the torsion transmitting member 16 rotates together with the arm 14 and transmits to the spring 15 as a torsional force, and the torsional reaction force of the spring 15 supports the pipe 40.

When the pipe 40 moves due to heat fluctuation or the like, the arm 14 rotates and responds to the movement.

Depending on the weight of the pipe 40 and the installation location,
By appropriately selecting the mounting position of the rod 39, that is, the pipe 40, and changing the point of application of the load, the allowable weight and the allowable movement amount can be arbitrarily set.

As for the allowable weight, the allowable load decreases as the load application point on the arm 14 moves away from the center of the shaft 18, and conversely, the allowable load increases as the load application point approaches the center of the shaft 18. Therefore, when supporting the heavy pipe 40, the pipe 40 may be mounted at a position close to the shaft 18. Conversely, when supporting the light pipe 40, the pipe 40 may be mounted at a position away from the shaft 18.

As for the allowable movement amount, the allowable movement amount increases as the mounting position of the pipe 40 moves away from the center of the shaft 18, and conversely, decreases as the mounting position approaches the center of the shaft 18. For this reason, when supporting the pipe 40 installed at a location where the heat fluctuation is large and the amount of movement is large, the pipe 40 may be attached at a position away from the shaft 18.
Conversely, when supporting the pipe 40 installed at a location where the heat fluctuation is small and the amount of movement is small, the pipe 40 may be attached at a position close to the shaft 18.

As described above, the mounting position of the pipe 40 is appropriately selected according to the weight and the installation location of the pipe 40 to be supported.

Further, by adjusting the mounting angle of the arm 14 with respect to the shaft 18, the allowable weight and the allowable movement amount can be freely set.

That is, when supporting the heavy pipe 40, the arm 18 is tilted in the direction opposite to the direction in which the load of the pipe 40 is applied (in this embodiment, counterclockwise in FIG. 1). After attaching to the arm 14,
Is preferably rotated in the direction in which the load of the pipe 40 is applied. By doing so, the coil spring 1
Since a large twist can be given to 5, the allowable weight can be increased.

When supporting the pipe 40 installed at a location where the pipe 40 moves largely downward due to heat fluctuation, the arm 1
4 is attached to the shaft 18 at an angle rotated counterclockwise in FIG. 1 to support the pipe 40 in a state where the arm 14 is inclined upward. Conversely, when supporting the pipe 40 installed at a location that largely moves upward, the arm 14 may be attached to the shaft 18 at an angle rotated clockwise in FIG.

As described above, by appropriately selecting the mounting angle of the arm 14 according to the weight of the pipe 40 and the thermal fluctuation state of the installation location, a wide range of load and movement can be achieved without changing the main body such as the spring 15. Can respond to.

In this embodiment, the spring 15
Has been described as a coil spring, but a helical spring may be used.

[0046]

In summary, according to the present invention, the following excellent effects are exhibited.

(1) The allowable weight and the allowable movement amount can be freely set by changing the mounting position of the pipe in the length direction of the arm.

(2) The allowable weight and the allowable movement amount can be freely set by changing the mounting angle of the arm with respect to the shaft.

(3) A spring hanger of the same design can be used irrespective of the size and location of the piping.

[Brief description of the drawings]

FIG. 1 is a front view showing a state in which a pipe is supported using a spring hanger according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a schematic view showing a state where a pipe is supported using a conventional spring hanger.

FIG. 4 is a schematic view showing the structure of a conventional spring hanger.

[Explanation of symbols]

 13 Casing 14 Arm 15 Spring 16 Torsion transmission member 20 Mounting hole 39 Rod 40 Piping

Claims (4)

[Claims] In a spring hanger for supporting piping of plant equipment or the like, a spring having one end fixed to the casing is housed in a casing, and a torsion transmitting member connected to the other end of the spring is rotatably provided. A spring hanger, wherein a substantially horizontal arm for supporting the piping is connected to the torsion transmitting member to be accommodated. 2. The pipe can be mounted at any position in the length direction of the arm, and by changing the mounting position of the pipe to change the point of application of a load, the allowable weight and allowable movement of the supported pipe are changed. The spring hanger according to claim 1, wherein the amount can be appropriately selected. 3. The spring hanger according to claim 1, wherein the arm is connected to the shaft of the torsion transmission member at a variable mounting angle. 4. The spring hanger according to claim 1, wherein a plurality of mounting holes are formed in a length direction of the arm, and one end of a rod supporting a pipe is detachably mounted in the mounting holes. .