Compartment elevator roller wheel

Abstract

The invention discloses a compartment elevator roller wheel. The section of a metal roller wheel framework is T-shaped. The metal roller wheel framework is of a hollow structure. Limiting stop rings extending in the radial direction of through holes are arranged on the opening edges of the through holes in the same side with a transverse part, on a longitudinal part. A first arc annular groove is formed in the inner hole wall of each through hole, a metal shaft sleeve is arranged in each through hole, a second arc annular groove opposite to the corresponding first arc annular groove is formed in the outer surface of each metal shaft sleeve, and rolling balls are annularly distributed in a cavity formed by each first arc annular groove and the corresponding second arc annular groove. A non-metal outer ring is connected to the longitudinal part of the metal roller wheel framework in a sleeving mode. A metal gland is connected to the longitudinal part of the metal roller wheel framework in a sleeving mode, and a metal pressing plate, the metal shaft sleeves and the metal roller wheel framework are riveted. Arc-surface R grooves are annularly distributed in the outer peripheral surface of the non-metal outer ring, and three annular grooves are formed in the bottom arc surface of each arc-surface R groove. The technical purpose that the production cost of the compartment elevator roller wheel is reduced is achieved, and the production cost is low.

Description

technical field [0001] The invention relates to a roller fitting, in particular to a van elevator roller. Background technique [0002] Van elevator rollers are used very frequently throughout the elevator system, such as in the door lock assembly of elevator landing door systems. [0003] At present, the structure of the existing van elevator rollers roughly includes standard bearings, roller bearing seats and rubber / plastic outer rings. The plastic outer ring is exposed as a whole, then the standard bearing is put into the roller bearing seat, and finally the standard bearing and the roller bearing seat are riveted. [0004] The van elevator roller with the above structure has the following defects: first, the unit price of the standard bearing is relatively high, which leads to a relatively high cost of the entire van elevator roller; There are limitations in size formulation; in addition, the structural design of the rubber / plastic outer ring is exposed as a whole, con...

AI Technical Summary

Problems solved by technology

[0004] The van elevator roller with the above structure has the following defects: First, the unit price of the standard bearing is relatively high, resulting in a relatively high cost of the entire van elevator roller; There are limitations in size formulation; in addition, the overall exposed structural design of the rubber / plastic outer ring, considering the relatively soft material of the rubber / plastic outer ring, is easy to be worn by foreign objects

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