JPH0747167Y2 - Oil supply device for slab supporting rolls for continuous casting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an oil supply device for supplying lubricating oil such as grease to a support roll of a slab support roll unit of a continuous casting device via a roll shaft. It is a thing.

[Prior Art] In order to supply, for example, grease to a support roll of a slab support roll unit for a continuous casting device, a communication hole for communicating the end of the roll shaft and the support roll is formed in the roll shaft and the roll shaft is also provided. Provide a grease nipple in the communication hole at the end,
A grease pump was connected to the grease nipple through a steel pipe or the like, and the grease pump was driven to supply the grease through the steel pipe and the communication hole.

[Problems to be Solved by the Invention] However, in the slab supporting roll unit of the continuous casting apparatus, since the water supply pipe of the spray nozzle for cooling the slab is complicatedly arranged, the grease supply pipe is provided at the end of the roll shaft. It was very difficult to pipe, and I spent a lot of time on piping work.

Further, in the slab supporting roll unit installed immediately below the mold, since the slab is at a high temperature, there is a problem that the pipe portion is exposed to radiant heat from the slab.

The present invention has been made in view of the above problems of the prior art, and its object is to simplify the pipe for supplying grease to the support roll and to make a slab for the pipe portion. It is intended to provide an oil supply device capable of eliminating the heat radiation of the above.

[Means for Solving the Problems] In order to achieve the above object, the oil supply device according to the present invention is provided with a roll support base on the frame body of the cast slab support roll unit, and an oil supply hole is formed in the support base. In a continuous casting device that supports a roll shaft and supports a support roll on the roll shaft, while forming a communication hole in the support base toward the roll shaft, the roll shaft includes the communication hole and the oil supply hole. A hole for connecting the oil supply bolt is formed, and one end of the oil supply bolt having the through hole is inserted into the communication hole through the communication hole of the support base, and the other end of the oil supply bolt is directly connected to the frame body. It was connected to the oil supply piping via.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a frame main body of the slab supporting roll unit, and the frame main body 1 is arranged along the slab path line of the continuous casting apparatus. Reference numeral 2 denotes a roll support base that supports a roll shaft 3, and the support base 2 is fixedly provided on the inner wall end surface of the frame body 1.

Reference numeral 3 denotes a roll shaft, which is supported by the roll support base 2 and is provided with an oil supply hole along the axial direction of the roll shaft 3.
3b is drilled. Further, the roll shaft 3 is formed with a communication hole 3a into which a tip of an oil supply bolt 8 described later is inserted, and the communication hole 3a connects the oil supply hole 3b and the communication hole 7 of the support base 2 described later. The hole 3c opened on the outer peripheral surface of the roll shaft is the oil supply hole 3b.
Is in communication with. In the embodiment, the tip of the oil supply bolt 8 is provided in a convex shape in a substantially conical shape, and the oil supply hole 3a is provided in a substantially conical shape so that the tip of the oil supply bolt 8 is engaged.

Reference numeral 5 denotes a support roll that supports the cast slab 6, and the support roll 5 is rotatably supported by the roll shaft 3 via a bearing 4. Reference numeral 7 is a communication hole formed in the roll support base 2. The communication hole 7 extends from the frame body 1 side to a communication hole 3a provided in the roll shaft 3. On the other hand, the frame body 1 is provided with a hole 7a at a position corresponding to the communication hole 7.

Reference numeral 8 denotes an oil supply bolt, which is inserted into the communication hole 7 from the outside of the main body frame 1 through the hole 7a. The tip of the oil supply bolt 8 is a communication hole for the roll shaft 3 as shown in FIG. It is formed so as to engage with 3a. This refueling bolt 8
A through hole 8a is formed along the longitudinal direction of the bolt 8. Reference numeral 9 denotes an oil supply pipe. One end of the oil supply pipe 9 is connected to a bolt head of an oil supply bolt 8 and the other end is connected to an oil supply device (electric grease pump, manual grease pump, etc.) not shown.

3 and 4 show another embodiment of the present invention. In this embodiment, the oil supply bolt 8 is screwed into the communication hole 7 of the roll support 2 and the bolt of the oil supply bolt 8 is attached to the frame body 1. A hole 1a communicating with the head is formed. The other end of the hole 1a is different from the embodiment of FIGS. 1 and 2 in that an oil supply pipe connected to an oil supply device is connected, but the other configurations are the same.

[Operation] A case where grease is supplied to the bearing 4 of the support roll 5 with the above configuration will be described.

First, an unillustrated oil supply device is operated (electrically, a drive switch is turned on or a manual lever is manually moved) to supply grease to the through hole 8a of the oil supply bolt 8 through the oil supply pipe 9. The grease supplied to the through hole 8a of the bolt is supplied to the space between the outer peripheral surface of the roll shaft 3 and the inner peripheral surface of the support roll via the holes 3a and 3b of the roll shaft 3. Then, the grease supplied to the space flows into the bearing 4.

[Result of Invention] Since the present invention is configured as described above, the following effects can be obtained.

i) The oil is supplied to the support rolls not through the ends of the roll shaft but through the oil supply bolts inserted into the communication holes provided in the roll support base, so that the piping work is simple and easy. At the same time, the repair and inspection of the piping part can be done easily.

ii) Since the oil passage from the outside of the frame body to the roll shaft is supplied through the through hole of the oil supply bolt inserted into the communication hole provided in the roll support base, lubricating oil such as grease is supplied to the oil supply bolt. -Protected by the frame body, etc., and is not exposed to radiant heat from the slab.

iii) Since the tip of the oil supply bolt is inserted into the communication hole of the roll shaft, it is not necessary to work on the roll shaft to prevent the roll shaft from slipping off and to prevent the roll shaft from slipping out, which greatly reduces equipment costs. Has the effect of.

[Brief description of drawings]

FIG. 1 is a plan sectional view of a slab supporting roll unit adopting the oil supply device of the present invention, FIG. 2 is a plan view of a partly cut oil supply bolt, and FIG. 3 is a plan view of another embodiment of the device of the present invention. A sectional view and FIG. 4 are longitudinal sectional views taken along line IV of FIG. 1 …… Frame main body 2 …… Roll support stand 3 …… Roll shaft 3a …… Communication hole 3b …… Lubrication hole 4 …… Bearing 5 …… Support roll 6 …… Cast piece 7 …… Communication hole 8 …… Oiler bolt 8a …… Through hole 9 …… Oil supply pipe

Claims (1)

[Scope of utility model registration request] 1. A continuous casting apparatus in which a roll support base is provided on a frame body of a cast slab support roll unit, a roll shaft having an oil supply hole formed therein is supported, and a support roll is supported by the roll shaft. A communication hole is formed in the support base toward the roll shaft, and a communication hole that connects the communication hole and the oil supply hole is formed in the roll shaft, and a through hole is formed in the communication hole. One end of the oil supply bolt is inserted through a communication hole of the support base, and the other end of the oil supply bolt is connected to an oil supply pipe either directly or via a frame body, and a cast piece support roll for a continuous casting apparatus is provided. Refueling equipment.