Drag for service elevator

Abstract

The present invention is one kind of drag for small service elevator, and belongs to the field of elevator driver. The drag for small service elevator includes motor, shaft coupling, speed reducer, brake disc, dragging wheel, jig, pedestal and brake, and features the output shaft of motor with flange, the drag seat of the speed reducer, and the flange seat for the motor to be fixed on through the flange seat. The drag for small service elevator of the present invention has the advantages of simple installation, correct location, high coaxiality between the output shaft of the motor and the worm shaft of the speed reducer, high braking stability and effect, etc.

Description

technical field [0001] The invention discloses an elevator traction machine, in particular a small debris elevator traction machine which is specially used for transporting sundries and whose load capacity does not exceed 350Kg, and belongs to the technical field of lifting facilities. Background technique [0002] In the prior art, the traction machines for small sundry elevators with a loading capacity of no more than 350Kg, such as the well-known F100K and F120K series in the industry, have a structure as shown in Fig. The shaft joint is connected with the motor 6 to drive the reducer 4, the traction sheave 3 connected with the reducer 4, the hanging foot 2 pivoted on the shaft end of the power output shaft of the reducer 4 to support the traction sheave 3, The base 1 extending from the bottom of the reduction box of the reducer 4 and the brake 5 used to brake the rotation of the traction wheel 3, wherein the motor 6 is installed on the traction machine frame 61 through t...

AI Technical Summary

Problems solved by technology

The above-mentioned motor 6 is installed horizontally, that is, the motor 6 is placed horizontally on the traction machine frame 61, and the motor frame 63 is used to adjust the installation height of the motor 6. However, it is found during actual use that this installation method It is difficult to ensure that the output shaft of the motor 6 and the worm shaft of the reducer 4 are on the same axis for the horizontal assembly of the traction machine of the small sundry elevator, that is, there is an error in the coaxial precision between the two. Too large will cause the whole machine to vibrate during the working process and will be accompanied by noise, which will affect the product quality of the traction machine. Moreover, it will also make the position of the brake and the brake disc uncertain, and the brake contact surface will change. The braking gap of the brake is asymmetrical to the left and right, and the center shifts to affect the braking effect of the traction machine; in addition, due to poor coaxial precision, the efficiency of the traction machine will also be reduced

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