Bearing seat structure used for preventing water from entering cold roll bearing in cold area of hot rolling layer

Abstract

The invention discloses a bearing seat structure used for preventing water from entering a cold roll bearing in a cold area of a hot rolling layer. The bearing seat structure comprises a bearing, a bearing seat, a drain device, a water inlet pipe and an inner cold roll, wherein one end of an inner cavity of the inner cold roll is matched with the water inlet pipe, the inner cold roll is mounted inthe bearing seat of a hot rolling production line through the bearing, the drain device is arranged on the end side of the water inlet pipe, a drain cavity is formed in the drain device, the drain device is connected with the bearing seat, a drain outlet is formed in the bottom side of the drain cavity, and a water retaining ring is arranged in the matched position of the water inlet pipe and theinner cold roll, so that the drain outlet is enabled to be away from the bearing. The bearing seat structure is simple in structure and good in draining effect, can effectively prevent cooling waterfrom entering the bearing, prevents loss of bearing lubricant and guarantees normal operation of a cold shaft.

Description

technical field [0001] The invention belongs to the technical field of hot-rolling production lines, and specifically refers to a bearing housing structure for preventing water from entering a cold roll bearing in a cold zone of a hot-rolling layer. Background technique [0002] The 2250 hot rolling production line of Zhanjiang Iron and Steel was designed by German SMS company, with an original design capacity of 5.5 million tons per year, and it was put into production and operation in December 2015. Among them, there are 377 laminar cooling roller tables, which are composed of ten groups of roller tables, which are generally divided into 4 types of roller tables, namely: conjoined rollers, internally cooled seated rollers, externally internally cooled rollers and internally cooled seatless rollers. [0003] Since the inner cooling roller adopts a single-side inlet and outlet rotary dynamic sealing structure (such as figure 1 As shown), the seal is mainly composed of a lip...

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Problems solved by technology

[0005] The disadvantages of the existing technology: 1. The design of the waterproof structure is unreliable, and the probability of water entering the bearing seat is high; 2. The drainage structure is not effective, the cooling water cannot be discharged in time, and a large amount of cooling water enters the bearing seat, resulting in the loss of lubricating grease There is a phenomenon of dead rolls in bearings due to poor lubrication

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