JPH0214802Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in the structure of a cam waltz provided between a driving source of a rolling mill.

(Prior Art) Conventionally, a cam waltz 1 is provided between the drive motor of a rolling mill and the rolling mill in order to withstand adjustment and synchronize the gap between the rolling rolls 2 (see FIG. 3).

In the Wham Waltz 1, the wobbler 11 is connected to the wobbler part 21 of the rolling roll 2 (see FIG. 3B) via the wobbler and coupling ring 31 provided at both ends of the spindle 3 (see FIG. 3C). [See Figure 3 A], driving force is transmitted to the rolling roll 2 from a drive motor (not shown) and a speed reducer, and these spindles 3 etc. can flexibly adjust the gap between the rolling rolls 2. ing.

(Problems to be Solved by the Invention) In the present invention, conventionally, the wobbler portion 11 of the cam waltz 1 had severe friction, so the entire cam waltz 1 was removed and repaired by overlay welding to the wobbler portion 11. However, in order to continue operating the rolling mill during this repair, it was necessary to have spare parts for the Camwaltz 1 and to carry out replacement work. In addition, there was a drawback that the cost of overlay repair and replacement of spare parts was high.

(Means for solving the problem) As a result of various studies, the inventor of the present invention found that in the past, high energy was transmitted through rotation, and strong vibrations were constantly applied due to biting of the rolled material, completion of rolling, etc. In order to withstand this, we decided to separate the wobbler part, which was conventionally molded integrally with the cam waltz, and created a removable fixed structure that can withstand high speed rotation, high energy transmission, and strong vibration. The gist of the invention is to divide the cam waltz into a wobbler part and a gear part, which are detachably fixed in a cam waltz integrated with a wobbler installed between the drive source of the rolling mill. This is the cam waltz structure of the rolling mill, which is characterized by the following.

(Operations and Effects) The present invention integrates the wobbler part 11 with the gear part 12 in a removable manner, for example, with bolts and nuts, to form the cam waltz 1, and then removes the wobbler part 11 and performs build-up repair or repair. It is possible to continue operating the rolling mill by making it disposable and fixing a new or spare wobbler part with bolts and nuts as described above. Moreover, since it is sufficient to simply replace the wobbler portion 11, the replacement cost will not be high. Furthermore, since only the wobbler section 11 is sufficient as a spare part, the cost of purchasing spare parts can be reduced.

As mentioned above, the configuration in which the cam waltz 1 is detachably divided and can be fixed is, for example,
The wobbler part 11 and the gear part 12 are divided into a wobbler part 11 and a gear part 12, each of which is provided with a flange with a bolt hole, and the flange parts are overlapped with each other and fixed with a plurality of bolts and nuts. shrink-fitting into the convex part of the gear part 12 and fixing it;
It is also possible to perform local welding and split the part by fusing at the time of repair, or to employ other known fixing structures.

(Example) Next, an example of the present invention will be described based on FIGS. 1 and 2.

FIG. 1 shows one embodiment of the present invention, a front view,
FIG. 2 is an enlarged side view of the wobbler section. 1 is a cam waltz divided into a wobbler section 11 and a gear section 12. 13 and 14 are wobbler parts 11
and a flange provided on the gear portion 12.
Further, 15 and 16 are the wobbler part 11 and the gear part 1.
2 through bolt holes (not shown) in the flanges 13 and 14.

Wobbler part 1 with many bolts 15 and nuts 16
1 and the gear part 12 are fixed, so even if you assemble and install it and use it as a cam waltz, it will not rotate at high speed.
It was able to achieve its functions by withstanding high energy transmission and strong vibrations. In addition, it could be replaced in a short time, and the downtime of the rolling mill for repairs could be shortened.

[Brief explanation of the drawing]

Figures 1 and 2 show one embodiment of the present invention, with Figure 1 being an overall front view and Figure 2 being an enlarged side view of the wobbler portion. FIG. 3A is an explanatory diagram of a conventional structure, B is a cross-sectional view of a coupling, and FIG. 3C is a perspective view of a wobbler portion of a rolling roll. 1... Cam waltz, 2... Rolling roll, 3... Spindle, 11... Wobbler part, 12... Gear part, 1
3, 14...flange, 15, 16...bolt/nut, 21...wobbler part of rolling roll, 31...coupling.

Claims (1)

[Scope of utility model registration request] A structure of a cam waltz for a rolling mill, characterized in that the cam waltz is integrated with a wobbler provided between a drive source of the rolling mill, and the cam waltz is divided into a wobbler part and a gear part, which are detachably fixed.