JPS64656Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a structure for preventing vibration of a pipe bus bar used as a conductor in a substation or the like.

(Prior Art) As shown in FIG. 5, a pipe bus bar P is supported by supports S at both ends. The intermediate portion of such a pipe busbar bends due to wind pressure and the like, causing vibration and damage. Therefore, various measures have been taken to reinforce the pipe bus bar. For example, Mikoaki
As described in Japanese Patent Publication No. 40-20839 and Japanese Patent Publication No. 41-1889, reinforcing pipes are inserted into the support points of the pipe busbars.

(Problems to be solved by the invention) With the above conventional method, it is difficult to deal with it in the field, especially since it is necessary to change the degree of reinforcement depending on the length and diameter of the aluminum bus bar. Moreover, there is a problem in that neither of them is sufficient to suppress vibration when it occurs.

Therefore, the present invention aims to solve the above-mentioned problems and provide a vibration-proofing structure that can effectively prevent vibrations and attenuate vibrations by appropriately selecting the number of reinforcing pipes according to on-site conditions. That is.

(Means for solving the problems) In order to solve the above-mentioned conventional problems, the present invention
A plurality of reinforcing pipes P1, P2, P3, etc., which are superimposed so as to be inscribed one after another, are inserted from both ends of the pipe generatrix P so as to be inscribed therein, and one of the reinforcing pipes with the smallest diameter P5 has friction. A rod was inserted and fixed, and the tip of this friction rod was inserted into frictional contact with the other reinforcing pipe P4 having the smallest diameter, thereby constructing a vibration isolation structure for the pipe generatrix.

(Function) In the pipe busbar vibration isolation structure of the present invention, reinforcing pipes P1, P2, P3, etc. are appropriately selected according to the site situation, for example, the span and inner diameter of the pipe busbar P, and the reinforcing pipes P1, P2, P3, etc. are appropriately selected to have the required length. By inserting the required number of pipes, the rigidity is increased and the pipe bus bar P is appropriately reinforced. Furthermore, when the pipe generatrix P vibrates due to wind pressure or the like, the friction rod F moves in and out of the reinforcing pipe P4 while making frictional contact with it, so the vibration is suppressed by this frictional resistance.

(Example) An example will be described below with reference to the figures. In the figure, a plurality of mutually overlapping reinforcing pipes P1, P2, and P3 are inserted and fixed from both sides of a pipe bus line P. Each reinforcement pipe P1, P2, P
Nos. 3 and 3 have different outer diameters, and one with a small diameter is inscribed in the next one with a large diameter so that they can overlap with each other. The one with the largest diameter P1 can be inserted inscribed in the pipe generatrix P.

When reinforcing pipes P1, P2, and P3 are inserted into the pipe bus line P, the pipe bus line P is reinforced and its rigidity is increased as shown in FIG. This also prevents the vibrations. Support interval of pipe bus bar P and installation environment,
The length and number of reinforcing pipes P1, P2, P3, etc. to be inserted shall be appropriately selected in accordance with the difference in dimensions.

In this way, both sides of the pipe generatrix P are reinforced with polymeric reinforcing pipes P1, P2, and P3, and as shown in Fig. 4, one of the innermost reinforcing pipes P4 is extended, and the innermost one is extended. A friction rod F is fixed to the tip of the other reinforcing pipe P5, and its tip is slidably inserted into the reinforcing pipe P4. In this way, when the pipe generatrix P vibrates, the friction rod F moves in and out of the reinforcing pipe P4 while making frictional contact, and this frictional resistance acts to suppress the vibration.

(Effects of the invention) As described above, the invention has a plurality of reinforcing pipes P1, P2, P3...
... are inserted from both ends of the pipe generatrix P so as to be inscribed therein, and the one with the smallest diameter of one reinforcing pipe P
5, one end of the friction rod F is inserted and fixed, and the smallest diameter one of the other reinforcing pipe P4 is extended into the pipe generatrix P, and the other end of the friction rod F is brought into frictional contact with the reinforcing pipe P4. Since the pipe bus bar vibration isolation structure is constructed by inserting the reinforcing pipes in such a way, it is possible to effectively prevent vibrations by appropriately selecting the length and number of reinforcing pipes depending on the site situation, and also to suppress the vibrations that occur. It has the effect of being able to

[Brief explanation of drawings]

Figures 1 to 4 show embodiments of the present invention. Figure 1 is a front view of the installed state of the invention, Figure 2 is a front view of the reinforcing pipe, and Figure 3 is a partial front view. FIG. 4 is a sectional view, and FIG. 5 is a front view of the pipe generatrix before reinforcement. P...Pipe bus bar, P1, P2, P3, P4,
P5...Reinforcement pipe, F...Friction rod.

Claims (1)

[Scope of utility model registration request] A plurality of reinforcing pipes, which are superimposed so as to be inscribed in sequence, are inserted from both ends of the pipe generatrix so as to be inscribed therein, and one end of a friction rod is inserted and fixed to one of the reinforcing pipes with the smallest diameter. , the other reinforcing pipe having the smallest diameter extends into the pipe busbar, and the other end of the friction rod is inserted into the reinforcing pipe so as to be in frictional contact with the pipe busbar. structure.