Cooling device for bearing of two-stage pusher centrifuge and manufacturing method thereof

Abstract

The invention relates to the technical field of bearings of centrifuges and specifically relates to a cooling device for bearings of two-stage pusher centrifuges. The objective of the invention is to solve the problem that when temperature of materials in a two-stage pusher centrifuge is over 100 DEG C, a bearing is damaged because mere utilization of the conventional method of oil cooling can not realize drop of temperature. The invention is characterized in that: a cooling flange is provided in the core part of a deep aperture in a bearing pedestal of a two-stage pusher centrifuge; the cooling flange comprises an outer ring and an inner ring; one end of the head of the inner ring is a flange ring; the bore of the inner ring is provided with a bearing pedestal aperture; a helical groove is formed at cylindrical surface of the inner ring through the setting of helical teeth; processing short tube hole and long tube hole respectively communicate with the helical groove; a short copper tube is provided in the short tube hole while a long copper tube is provided in the long tube hole; the bore of the inner ring matches with excircle of the inner ring where the helical groove is provided, and the two are welded into an integrate part. According to the invention, the contact area between a liquid coolant and the inner ring is guaranteed, and the force received by a supporting bearing can be stabilized.

Description

technical field [0001] The invention relates to the technical field of centrifuge bearings, in particular to a bearing cooling device and a manufacturing method of a two-stage pushing material centrifuge. Background technique [0002] In the current two-stage pusher centrifuge, the temperature of the material entering the drum is generally around 50°C, and the temperature of the front bearing of the bearing seat can be reduced by lubricating and cooling the oil circuit. When the temperature of the material reaches 150°C, the cooling of the oil circuit can no longer reduce the excessive temperature of the bearing, which may easily cause damage to the bearing. Most of the existing cooling devices for bearing housings are used to pour coolant into the bearing housing body. Due to the structural complexity of the bearing housing body, its cooling effect and bearing housing strength are affected. For example, the patent publication number is CN 101793293A, a sliding bearing cool...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the temperature of the material in the two-stage pusher centrifuge reaches above 100 degrees, and the problem of damage to the bearing caused by the failure to cool down with a single traditional oil cooler is to provide a dual-stage pusher centrifuge bearing with a reasonable structure The cooling device and its manufacturing method, which set a French cooling flange in the bearing seat of the double-stage pusher centrifuge, and use the spiral structure of trapezoidal teeth or rectangular teeth to ensure that the cooling liquid is continuously circulated on the outer layer of the bearing and ensure that the bearing is installed Parts with high strength requirements

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