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Drive unit for hoist

A driving device, elevator technology, applied in the direction of hoisting device, transportation and packaging, spring mechanism, etc., to achieve the effect of reducing the length of the structure, reducing the cost, and reducing the length of the drive shaft

Inactive Publication Date: 2002-10-02
WITTUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solution proved to be successful, but the compact and possibly extremely compact installation process of assembling the drive unit and / or fitting it into the hoist created the need for further simplification

Method used

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  • Drive unit for hoist
  • Drive unit for hoist
  • Drive unit for hoist

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Detailed Description of Preferred Embodiments

[0017] FIG. 1 is a schematic diagram of a driving device of an elevator. The basic components include a transmission device 2 , a brake 4 and a motor 6 , which are coaxially mounted on a drive shaft 7 . The casing 8 contains the brake 4, the motor 6 and a part of the transmission device, and carries an elevator cable drive disc (not shown in the figure). The casing 8 is anchored on a foundation (not shown). The drive disk can be supported or mounted on the drive flange 2a or on the drive shaft 2b.

[0018] Described brake 4 has the brake body 10 of a cast brake drum shape, is provided with the rotor bushing 14 of the rotor 16 of ventilation vane 12 and described motor 6 (having rotor 16 and stator 18) on it (see also Figure 3a ). The stator winding is coupled with the brake drum 4 (used as a motor output), and the brake drum, for example, can be provided with vents 19 on the axially outer surface of the brake drum ( ...

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PUM

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Abstract

A driving device used in an electric lift, having: a casing (8), including an end wall; an electric motor (6), having a stator, the stator winding of which is assembled in the casing; a motor (6) located outside the casing a transmission device (2); a braking device (4), including at least one circulating braking body installed in the casing; and a continuous rotating drive shaft, which constitutes a motor shaft and is mounted with a The stator cooperates with the rotor, and the driving shaft supports the braking body and constitutes a driving shaft of the transmission device; the casing, the motor, the braking body and the transmission device are coaxially installed together, and the continuous The transmission drive shaft is rotatably supported on the end wall, not only extending in the casing between the electric motor and the brake body, but also extending to and supported on the transmission device outside the casing, so There is a cavity on the end wall of the casing for placing at least part of the transmission device, and there is an annular cavity on the brake body to insert the stator winding, thereby forming an axis along the continuous drive shaft. Very compact drive unit.

Description

technical field [0001] The invention relates to a driving device of a crane, in particular to a driving device of an electric lift with a motor, a transmission device, a brake device and a casing. Background technique [0002] Such a drive is to be found in EP 706 968, which discloses a drive which is structurally simple, has a small overall length and generates low inertial forces. The motor and transmission device can be fixed on the flange of the brake housing in the form of a cantilever beam, and the brake housing acts as a stator and becomes the only component that needs to be fixed on the foundation, that is, the base. This solution has proven to be successful, but the compact and possibly extremely compact installation process of assembling the drive and / or installing it into the hoist creates the need for further structural simplification. The present invention attempts to solve this problem. Contents of the invention [0003] In order to solve the above problems...

Claims

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Application Information

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IPC IPC(8): B66D1/02B66B11/08B66B11/04
CPCB66B11/043
Inventor 胡伯特·菲舍尔
Owner WITTUR
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