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Flat hoist for elevator

A traction machine and flat technology, which is applied in the field of traction machines for flat elevators, can solve problems such as reducing braking force, and achieve the effect of preventing braking force from being reduced.

Inactive Publication Date: 2013-05-15
MEIDENSHA ELECTRIC MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the above-mentioned existing traction machine for flat elevators, a brake wheel cover 13 covering the side of the brake wheel 8 is provided on the side of the sheave 6 side of the support member 1, and the inner diameter of the brake wheel cover 13 is larger than the outer diameter of the sheave 6. Therefore, the oil contained in the rope 7 wound on the rope groove 6a on the outer periphery of the sheave 6 passes between the outer periphery of the sheave 6 and the inner periphery of the brake wheel cover 13 and is likely to adhere to the side of the brake wheel 8, The oil attached to the side of the brake wheel 8 flows to the sliding surface between the outer periphery of the brake wheel 8 and the brake pad under the action of centrifugal force, which may significantly reduce the braking force

Method used

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Embodiment approach 1

[0017] Hereinafter, the best mode for carrying out the present invention will be described based on the drawings. figure 1 A partially enlarged vertical cross-sectional side view of the flat elevator traction machine according to the first preferred embodiment of the present invention, 6b is a groove provided in the part of the sheave 6 on the side of the brake pulley 8, and 14 is the sheave of the supporting member 1 Brake wheel cover installed on the side of 6 sides. The brake wheel cover 14 covers the side surface of the brake wheel 8, and the inner end thereof is inserted into the groove 6b. Other structures are the same as before.

[0018] According to Embodiment 1, the inner end of the brake wheel cover 14 is inserted into the groove 6b of the rope wheel 6 provided on the side part of the brake wheel 8, and the rope 7 and the side of the brake wheel 8 are separated by the brake wheel cover 14, which can prevent the rope from The oil of 7 adheres to the side surface an...

Embodiment approach 2

[0020] figure 2 It is a partially enlarged vertical cross-sectional side view of a flat elevator traction machine according to the second preferred embodiment of the present invention, 6c is a groove provided on the side of the brake pulley 8 of the sheave 6, and 15 is the sheave 6 of the supporting member 1 Brake wheel guards mounted on side faces. The brake wheel cover 15 covers the side surface of the brake wheel 8, and its inner end is inserted into the groove 6c, and the brake wheel cover 15 is formed with a folded portion 15a folded outward, and the folded portion 15a is accommodated in the groove formed in the groove 6c. In the housing part 6d. Other structures are the same as before.

[0021] According to the best embodiment 2, the inner end of the brake wheel cover 15 is inserted into the groove 6c of the sheave 6, and the inner end of the brake wheel cover 15 is formed with a turn-back portion 15a that turns outward, and the turn-back portion 15a is accommodated i...

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Abstract

A rotor having a smaller diameter than a support member is rotatably supported on the support member through a bearing.  A stator is fixed to the support member.  A sheave having in the outer periphery thereof a rope groove around which a rope is wound is mounted to a projecting small-diameter section of the rotor.  A brake drum having a greater diameter than the sheave is formed on the rotor.  A brake drum cover for covering a side surface of the brake drum is mounted to that side surface of the support member which is on the sheave side.  A groove is formed in that portion of the sheave which is on the brake drum side, and the inner end of the brake drum cover is inserted in the groove.

Description

technical field [0001] The present invention relates to a traction machine for flat elevators. Background technique [0002] image 3 (a) and (b) are a front view and a vertical side view of a conventional flat elevator traction machine shown in Patent Document 1 and the like, Figure 4 express image 3 In the enlarged view of part A of (b), reference numeral 1 represents a supporting member, which is composed of a hollow shaft portion 1a and a plate-shaped fixing portion 1b that expands radially from one end of the shaft portion 1a, and is fixed in an elevator shaft or the like. Permanent magnets 4 are provided on the outer periphery of rotor core 3 to constitute rotor 2 , and rotor 2 is rotatably supported by shaft portion 1 a of support member 1 via bearing 5 . A sheave 6 is fitted and fixed to a protruding small-diameter portion 3 a formed on one end side of the rotor core 3 , and a rope groove 6 a is formed on the outer periphery of the sheave 6 . Ropes 7 are wound fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B11/08
CPCB66B11/0438
Inventor 丰川庆
Owner MEIDENSHA ELECTRIC MFG CO LTD