JP2520806B2 - Vibration absorbing pipe fitting - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-absorbing pipe joint, and is suitable for appropriately absorbing vibration and supplying liquid or the like in various kinds of processing equipment accompanied by vibration such as continuous casting equipment and fine processing equipment. An object of the present invention is to provide a pipe joint that is easy to attach and detach and easy to maintain, even though it cannot be removed during operation.

[0002]

2. Description of the Related Art It is natural that various processing equipments rotate and perform other operations and are accompanied by some vibrations. Especially, in continuous casting equipments, the cast bodies in the mold are sequentially released and continuously. Since it is necessary to pull out, it is necessary to give considerable vibration, and on the other hand, it is necessary to circulate or supply cooling water or the like to the mold or the cast body drawn out. is there.

The same applies to the thinning treatment and the like. For example, when crushing the mineral fiber material produced in the close contact state by beating and crushing while supplying water, a strong impact force is applied. Can also be treated by avoiding pulverization of the fiber material, but it is necessary to supply water through a pipe line under the condition that considerable vibration is generated due to its strong impact force. Many treatment facilities use fluids together.

[0004] Conventionally used as a joint mechanism used in a pipeline for supplying a fluid to the above-mentioned processing equipment with large vibration, particularly as a joint mechanism for connecting the pipeline to the processing mechanism. The structure has a bent cross section made of rubber and is intended to absorb the eccentric operation and the expansion and contraction action due to vibration under the condition where the joint is pressed.

[0005]

However, the conventional technique as described above has a poor durability even though it has vibration absorption performance. That is, even if a material or the like is selected, a sudden action such as eccentricity or expansion and contraction is repeated under a violent vibration condition, and as a result, a crack is generated and a leakage occurs, so that it must be replaced frequently. Further, as described above, expansion and contraction of cooling water or the like flowing in the joint portion having a bent cross-section gives a pulsating action, so that a preferable feeding state cannot be formed.

[0006]

Means for Solving the Problems The present invention has been studied repeatedly for solving the problems of the above-mentioned conventional techniques, and succeeded in effectively absorbing vibrations by using a rigid member such as a steel pipe as a main material. It is as follows.

A socket having a flange portion, a housing opposed to the socket, and a short tube portion body that is internally installed in the socket and the housing. The socket and the housing and both ends of the short tube portion body are connected to each other. A packing material having a cavity with a pair of joining lips on both sides is interposed therebetween, and a locking portion for engaging with the housing and an adapter connected to the housing is provided at one end of the short tube body. Further, the other end is made flat, and the device section or one conduit section body is connected through the housing and the adapter, and the flange part of the socket is connected to the other conduit section body. Vibration absorbing pipe joint characterized by.

[0008]

The present invention comprises a socket having a flange portion, a housing opposed to the socket, and a short tube portion body that is internally fitted to the socket and the housing. The socket and the housing and both ends of the short tube portion body are connected to each other. By inserting a packing material that has a cavity with a pair of joint lips on each side, the short pipe part made of steel or the like can be used to connect the pipe lines, and its durability can be improved accurately and the joint part The volume change associated with expansion and contraction in the is suppressed and pulsation is eliminated.

As described above, the hollow portion is formed between the socket and the housing and the short tube portion body, and the lip portions on both sides of the hollow portion interpose the packing that is in contact with the short pipe portion body and the socket or the housing. As a result, the fluid pressure in the pipeline acts on the inside of the cavity, and a proper sealing action can be obtained with a slight tightening. In addition, the cooling fluid enters the packing cavities between the lips to cool the inside of the packing and enhance its durability.

Since the sealing action utilizing the fluid pressure in the pipeline is obtained as described above, the tightening with respect to the packing is only required to be light, and the eccentricity in the packing portion,
The expansion and contraction are properly obtained to absorb vibration, and the deterioration (hardening) of the packing material is less likely to occur, so that a joint portion having excellent durability is formed.

The short tube portion body provided as described above is provided with a locking portion that engages with the housing and the adapter connected to the housing, and the equipment portion body or the housing body and the adapter portion are provided via the housing and the adapter. By connecting one pipe line body to the other pipe line body at the above-mentioned flange portion of the socket, the short pipe line body can be accurately connected under the vibration condition of the pipe line. It is held at a predetermined position in the road body to form a connection relationship with the pipeline, and the packing setting position is also appropriately held. Further, by disconnecting the connection of the adapter to the housing, the short tube body can be removed and the main joint mechanism including each packing can be easily attached and detached.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the present invention as described above will be described with reference to the accompanying drawings. A basic embodiment of the present invention has a general relationship in FIG. It is as shown together. That is, socket 1, housing 2, adapter 3,
It is configured by the short tube body 4 and the packing materials 5 and 5.

As shown in FIG. 2, the socket 1 has a flange 11 formed at one end so as to be connected to the conduit body, and a packing 5 at the other end.
The receiving part 12 is provided. The housing 2 is a disk-shaped body having the same diameter as the flange 11, and a receiving portion 22 of the packing 5 is formed on the inner peripheral side thereof as in the socket 1.

On the end face of the housing 2, another seal material setting portion 21 is formed in a ring shape, and a seal material 6 such as an O-ring is provided, and the adapter 3 is joined and set to the end surface. It Screw hole 31 for adapter 3
And an insertion hole 32 are provided, and the screw hole 31 is provided in the housing 2.
The housing 2 is connected to the housing 2 with a bolt screwed from the housing 2, and the insertion hole 32 is provided with the housing 2 or the equipment body 10 or the flange portion of one of the conduit portions or the bolt inserted from the housing 2. The parts are integrally screwed to each other. When the adapter 3 is used as described above, the adapter 3 may be temporarily fixed to the housing 2 by a connecting bolt 37 inserted in the connecting screw hole 34 in order to prevent the adapter 3 from being scattered during shipping. Made of

A locking portion 41 is provided at one end of the short pipe portion body 4 such as a spigot pipe, and the locking portion 41 is housed in the inner peripheral side recessed portion 33 of the adapter 3 and the end of the housing 2. Locking projection 3 at one end of the part 26 and the adapter 3
5 is slidably positioned between the two.

The packing material 5 has a cavity 5 on one side thereof.
0 is formed, and lip portions 51, 51 are formed on both sides of the open end of the cavity portion 50 so as to face each other.
In the released natural state, as shown by phantom lines in FIG. 3, the inner and outer side surfaces of the packing 5 are inclined, so that the packing 5 is located in the housing portion 22 of the housing 2 or the socket 1. As a result, the tip of the lip portion 51 is joined and set with the strongest pressure contact force by being assembled to the short pipe portion body 4.

That is, in the set state as described above, an effective initial seal is formed on the lip portion 51, and moreover, the fluid in the pipeline enters the hollow portion 50 and the fluid pressure thereof is changed to the hollow portion 50.
Acting as a sealing force proportional to the fluid pressure is applied to the entire area of the cavity 50, and a proper seal is formed and maintained against a considerable internal fluid pressure without further tightening. From this, it is sufficient that the packing material 5 has a light initial seal.

FIG. 3 shows the socket of FIG. 2 provided with a lubricating ring 7 at the tip of the socket shown in FIG. As the lubricating ring 7, for example, a material such as felt impregnated with lubricating oil is adopted, and the slidability of the short tube portion 4 can be improved, and the vibration absorbing action in this portion can be improved.

FIG. 4 shows an embodiment in which the dustproof cover 8 is attached to the outer surface of the setting portion of the packing 5 and the lubricating ring 7 in the socket 1 of FIG. That is, when the one of the present invention is used in a cooling water pipe supplied for the purpose of cooling a slab in a continuous casting facility, it is an unavoidable working environment in which dust is generated, and dust under such conditions. Prevent the oil from invading and adhering to the lubrication ring 7 and the respective packing 5 parts, and effectively maintain the respective functions of these mechanisms. Dust cover 8
As the material, polyethylene or the like is appropriately adopted.

Further, FIG. 5 shows an embodiment in which a prop seal 9 is provided on the end faces of the socket 1 and the housing 2. That is, a step portion 28 is formed on the end surface of the housing 2 to which the packing 5 is attached as described above, and the prop seal 9 is set along the end surface of the housing 2, and the housing 2 is directly attached to the side surface of the device. By joining and connecting, the end portion of the short tube portion body 4 is made to face the side surface of the device to serve as a stopper thereof.

That is, in the case where the prop seal 9 and the O-ring are provided on the end surface of the housing as described above, FIG.
As shown in FIG. 2, the housing 2 can form a relationship suitable for directly mounting to the device body 10.
The locking portion 41 of the adapter directly faces the joining step portion 10a formed on the side surface of the device body 10, and the adapter 3
Does not need

In any of the above-mentioned configurations, the cooling water and other fluids form a flow path through the short pipe portion 4, and the short pipe portion 4 is connected to the device portion body 10.
In addition, it has a hollow portion 50 for the pipe portion body and is attached to the lip portion via packings 5 and 5 which seal by receiving internal fluid pressure, and therefore, considerable eccentricity, expansion or contraction or inclination in the short pipe portion 4 portion. And sufficient vibration absorption can be obtained with almost no resistance due to the packing 5, 5 parts or its peripheral members. That is, the vibration in the equipment body 10 or the equipment body side conduit body is almost never transmitted to the conduit body connected through such a short pipe body 4, and the equipment body 10 side Effective vibration is effectively obtained, and further, relaxation or damage caused by the vibration is effectively prevented in the connected stationary pipeline system.

[0023]

According to the present invention as described above, in a pipe system which is connected to a continuous casting facility or other processing mechanism accompanied by considerable vibration or which passes through a region under a vibration condition, the vibration is suppressed. The joint portion can be appropriately absorbed, and therefore, damage and relaxation of the pipe line system due to vibration can be appropriately prevented, and vibration in the vibration processing mechanism can be efficiently added. Such a joint mechanism is easy to attach and detach and facilitates maintenance and inspection management.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a general structural relationship of a joint mechanism of the present invention together with partially cutaway side views, end views and sectional views.

FIG. 2 is a sectional view showing a detail of the joint mechanism in a partially enlarged manner.

FIG. 3 is a partially enlarged cross-sectional view similar to FIG. 2 showing a modified example thereof.

FIG. 4 is a partially enlarged sectional view similar to FIGS. 2 and 3 of still another embodiment.

FIG. 5 is a partially enlarged sectional view similar to FIGS. 2 to 4 of another embodiment.

FIG. 6 is an explanatory diagram showing a procedure in the case where the device is directly attached to the device body.

[Explanation of symbols]

 1 Socket 2 Housing 3 Adapter 4 Short Tube Body 5 Packing 6 Sealing Material 7 Lubrication Ring 8 Dust Cover 9 Prop Seal 10 Equipment Body 10a Joint Step 11 Flange 12 Receiving Portion 21 Sealing Material Setting Portion 22 Receiving Port 24 Bolt Insertion Hole 26 Ends 31 Screw Holes 32 Insertion Holes 33 Inner Recesses 34 Connection Holes 35 Locking Protrusions 37 Connection Bolts 41 Locking Parts 50 Cavities 51 Lips

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshito Ikeda 1 Nishinosu, Oita-shi, Oita Pref. Shin-Nippon Steel Co., Ltd. Oita Works (56) Bibliography 48-35405 (JP, U) Actual Public 38-8639 (JP, Y1) Actual public 39-16982 (JP, Y1)

Claims (1)

(57) [Claims] 1. A socket having a flange portion, a housing opposed to the socket, and a short pipe portion body that is internally installed in the socket and the housing, and the socket and the housing and the short pipe portion body. A packing material having a hollow portion in which joining lips are oppositely provided on both sides is interposed between the both ends, and one end of the short tube portion is engaged with the housing and an adapter connected to the housing. A stopper is provided, and the other end is made flat, and the device part or one conduit part body is connected through the housing and the adapter, and the flange part of the socket is connected to the other conduit part body. A vibration-absorbing pipe joint characterized by the above.