Double-wedge sealed buckled type reverse stop bearing

Abstract

The invention provides a double-wedge sealed buckled type reverse stop bearing which comprises a bearing outer ring, a bearing inner ring and steel balls. A double-wedge buckled type nylon retainer is arranged among the bearing outer ring, the bearing inner ring and the steel balls. The two sides of the retainer are both provided with multiple wedge block slots and spring slots. Wedge blocks and springs are arranged in the wedge block slots and the spring slots. The springs abut against the retainer and the wedge blocks, so that the wedge blocks are in contact with the outer ring and the inner ring, and the wedges are combined inversely and unbound forwards. An upper fixing cover and a lower fixing cover are assembled to the upper side face and the lower side face of the retainer respectively, and it is guaranteed that the wedge blocks and the springs are both at working positions. The steel balls are arranged in the middle of the bearing, the two sides of the bearing are both evenly provided with the wedge blocks, the springs enable the wedge blocks to be stressed evenly and stably, the buckling joints of the steel balls and the retainer are specially designed, continuous oil supply for the steel balls is guaranteed, a double-faced sealing structure is adopted, and therefore moisture in a washing machine can be effectively prevented from intruding into the bearing. Accordingly, a higher load requirement is met, the reliability is improved, noise is lowered, and the service life is prolonged.

Description

technical field [0001] The invention relates to a reverse stop bearing, in particular to a high-load, high-impact and high-protection reverse stop bearing. Background technique [0002] Currently. For today's bearing processing and manufacturing, there are many types of bearings, and some special-purpose bearings are also widely used, especially a wedge-type reverse stop bearing for clutches, which is especially used in the washing machine industry. Through the wedging and unwedging of the reverse stop bearing, the washing and dehydration of the washing machine can be realized. The principle of operation of reverse stop bearings, such as figure 1 As shown, the stop function is realized by the mutual movement of the wedge 6, the outer ring 1, the inner ring 2, and the spring 7. With the gradual upgrading of the washing machine, the household small-capacity washing machine is gradually transformed and upgraded to the industrial large-capacity washing machine. The environmen...

AI Technical Summary

Problems solved by technology

However, the existing reverse stop bearing is a stop structure with a steel ball on one side and a wedge on the other side. This stop mechanism mainly relies on one side (the side with the wedge) to bear the stop force when stopping, resulting in The ferrule (outer ring and inner ring) becomes trumpet-shaped, and the wedge contacts the ferrule, which also changes from line contact to point contact, which greatly reduces the wedging and bearing capacity; The straightness, verticality, and coaxiality of the wedging surfaces between the wedges are high, which leads to unstable wedging when the reverse stop bearing is wedging, and the wedging position is constantly changing, which is prone to reverse stop failure.

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