JPH0587279A - Vibration absorptive pipe joint - Google Patents

Abstract

PURPOSE:To provide a pipe joint which is able to absorb a vibration so properly and suited to supply a liquid and the others, in processing equipment attending upon the vibration in continuous casting equipment or the like. CONSTITUTION:This pipe joint consists of a flanged socket 1, a housing 2 and a short pipe member 4 installed astride these elements. Packing 5 with a cavity part 50 is interposed between these elements, while an engaged part 41 holding the member 4 in a specified position is installed in this short pipe member 4, and pipelines are connected at a flange part of the socket 1.

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 a pipe suitable for appropriately absorbing vibration and supplying liquid or the like in various processing facilities accompanied by vibration such as continuous casting equipment and miniaturization equipment. It is intended to provide a fitting.

[0002]

2. Description of the Related Art It is natural that various processing equipments rotate and perform other operations and are therefore accompanied by some vibrations. Especially, in continuous casting equipments, the castings 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 cooling water or the like to the mold or the drawn cast body, or to supply and inject it. is there.

The same applies to the thinning treatment, for example, in crushing the mineral fiber material produced in the close contact state, if it is beaten and crushed 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 by a pipe line under the condition that considerable vibration is generated by its strong impact force. There are many processing facilities that use the fluid together.

[0004] Conventionally used as a joint mechanism used in a pipeline for supplying a fluid to a processing facility having a large vibration as described above, particularly as a joint mechanism connecting the pipeline to the processing mechanism. The structure has a bent cross section made of rubber, and is intended to absorb the eccentric action and the expansion and contraction action due to vibration in the joint.

[0005]

However, the conventional technique as described above has poor durability even though it has a good 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 leakage occurs, so that the material 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, and a preferable feed state cannot be formed.

[0006]

Means for Solving the Problems The present invention has been studied to solve the problems of the above-mentioned conventional techniques, and succeeded in effectively absorbing the vibration by using a rigid member such as a steel pipe. And as follows:

It comprises a socket having a flange portion, a housing opposed to the socket, and a short tube portion body which is installed in the socket and the housing in a crotch manner, and between the socket and the housing and the short tube portion body. Each of the short tube parts is provided with a locking part that engages with the housing and the adapter or the device part, and the housing and the adapter or the device part or one of the tubes is inserted. A vibration absorbing pipe joint, characterized in that the vibration absorbing pipe joint is connected to a passage body and is connected to the other pipe passage body at the flange portion of the socket.

[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 fitted in the socket and the housing, and is provided between the socket and the housing and the short tube portion body. By inserting a packing material with a cavity in each, the short pipe part made of steel or the like connects the conduits, improving their durability accurately and reducing the volume change due to expansion and contraction of the joint part. Eliminates the pulsation of Karashime.

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 packings for engaging 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.

As described above, since the packing is lightly tightened, eccentricity and expansion / contraction of the packing portion are appropriately obtained to absorb vibration, and deterioration of the packing material (hardening) is less likely to occur. A joint part having excellent durability is formed.

The short pipe portion body provided as described above is provided with a locking portion for engaging with the housing and the adapter or the equipment portion body, and the housing and the adapter or the equipment portion body or one of the conduits. The short pipe part body is accurately connected to the other pipe line part body even under the vibration condition of the pipe line by connecting the pipe part body to the other pipe line part body at the flange portion of the socket. In (1), it is held at a predetermined position to form a connection relationship with the pipeline, and the packing setting position is also appropriately held.

[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. The 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,
The short tube portion 4 and the packing materials 5 and 5 are used.

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.

Another sealing material setting portion 21 is formed on the end surface of the housing 2 and a sealing material 6 such as an O-ring is provided, and the adapter 3 is bonded to the end surface. The adapter 3 has screw holes 31 and insertion holes 3
2 is provided, the screw hole 31 is connected to the housing 2 by a bolt screwed from the housing 2, and the insertion hole 32 is connected to the device body 10 or a flange portion of one conduit body or the housing 2. The inserted bolts are screwed into the housing 2 or the device body 10 so that these bodies can be integrally attached. When using the adapter 3 in this way, this adapter 3
In order to prevent the above from being dissipated at the time of shipment, it can be temporarily fixed to the housing 2 by a connecting bolt 37 inserted into the connecting screw hole 34.

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 accommodated 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. These lip portions 51, 51 are packed in the natural state in which they are released, as shown by phantom lines in FIG. The inside and outside of the side surface is inclined,
The packing 5 is positioned in the housing 2 or the accommodating portion 22 of the socket 1 and assembled to the short tube body 4, whereby the tip of the lip portion 51 is joined and set with the strongest pressure contact force.

That is, in the set state as described above, an effective initial seal is formed on the lip portion 51, and the fluid pressure in the pipeline acts on the cavity portion 50, so that a sealing force proportional to the fluid pressure is produced. Providing across 50 ensures the formation and maintenance of a suitable seal against considerable internal fluid pressures without any additional pressure. From this, it is sufficient that the packing material 5 has a light initial seal.

FIG. 3 shows a structure in which a lubricating ring 7 is provided at the tip of the socket 1 of the structure 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 surfaces of the packing 5 and the lubrication ring 7 in the socket 1 in 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. Prevents the oil from penetrating and adhering to the lubrication ring 7 and the parts of each packing 5, and effectively maintains 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. 3, the housing 2 can form a relationship suitable for directly mounting to the device body 10.
Of the adapter 3 is formed so as to directly face the joining step 10a formed on the side surface of the device body 10 as appropriate.
Don't need

In any of the above-mentioned configurations, the cooling water and other fluids form a flow path through the short pipe section 4, and the short pipe section 4 is connected to the equipment section 10.
To the conduit body via the packings 5 and 5 having the cavity 50, so that a considerable eccentricity, expansion and contraction or inclination can be achieved in the short pipe body 4 and sufficient vibration absorption can be obtained. . That is, the vibration in the device body 10 or the device body side conduit body is such a short pipe body 4
The transmission to the pipe line body connected via the part is almost eliminated, and effective vibration on the device body 10 side can be efficiently obtained, and vibration is generated in the connected stationary pipe line system. Effectively prevent the accompanying relaxation or damage.

[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. It can be appropriately absorbed in the joint portion, and accordingly, damage and relaxation of the pipeline system due to vibration can be appropriately prevented, and vibration in the vibration processing mechanism can be efficiently added. This is an invention that is industrially highly effective.

[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 No. 1 Nishinosu, Oita City, Oita Prefecture Nippon Steel Co., Ltd. Oita Works

Claims (1)

[Claims] 1. 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, wherein the socket and the housing and the short tube portion body are provided. A packing material having a cavity is interposed between them, and the short tube portion is provided with a locking portion that engages with the housing and the adapter or the equipment portion, and the housing and the adapter or the equipment portion or one of them. The vibration-absorbing pipe joint is characterized in that it is connected to the other pipe line body at the flange portion of the socket described above.