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Energy-saving safe minisize electric gourd

An electric hoist and miniature technology, applied in the direction of the spring mechanism, hoisting device, etc., can solve the problems of low power, accidents, safety hazards, etc., and achieve the effects of stable braking, improved power, and reliable braking.

Inactive Publication Date: 2010-06-02
CHANGSHUSGULL CRANE & HOIST MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the applicant believes that the technical solution of the above-mentioned patent application still has the following disadvantages; first, because the motor adopts a squirrel-cage motor, the squirrel-cage motor not only has the disadvantages of large volume, heavy weight, low power, and waste of energy, but also There is also a waste of copper raw materials belonging to strategic resources, because both the rotor and the stator of the squirrel-cage motor must use copper, so it is not conducive to saving energy and precious copper resources; secondly, the braking device uses electromagnetic brakes, The biggest unfavorable factor of the electromagnetic brake is that it is unstable, because the motor speed of the miniature electric hoist is often high. Once it cannot be fully braked (braked), it will cause the suspended object to slide down and cause an accident; With overweight control function, there are potential safety hazards

Method used

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  • Energy-saving safe minisize electric gourd
  • Energy-saving safe minisize electric gourd
  • Energy-saving safe minisize electric gourd

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] See figure 1 , the shape of the main housing 49 is substantially rectangular, and constitutes a first shell cavity 47, in which the roller mechanism 51 and the motor 2 are arranged in a lying state and kept parallel to each other in the first shell cavity 47, for the motor 2 adopt DC permanent magnet motor, the advantage of this motor is that power is big, volume is little and saves copper material, because, compared with the squirrel-cage motor widely used in the prior art of the same power, for example each is 600W , the diameter and length of the squirrel-cage motor are 185mm and 360mm respectively, and the weight is 8kg; while the diameter and length of the DC permanent magnet motor are only 90mm and 210mm respectively, and the weight is 4.2kg. up to more than 1 times. And because, in terms of the materials used to manufacture the motor, both the stator and the rotor of the squirrel-cage motor require copper (enameled wire), while the DC permanent magnet motor only...

Embodiment 2

[0028] please see Figure 4 and Figure 5 , as another embodiment, change the wire rope adopted by the suspension rope 45 in the embodiment 1 into a chain, and make a slight formal change to the structure of the winch 43 on the winch shaft 42, that is, in the winch The chain groove 63 that matches with the shape of chain is processed on the disk surface of 43, capstan 43 is fixed by the middle part of spline 64 and capstan shaft 42, and one end of capstan shaft 42 is Figure 4 , Figure 5 The shown left end passes through the first shaft head hole 71 of the left support seat 66 and is pivoted on the bearing. figure 1 On the left wall plate 50 shown, and the other end of the capstan shaft 42 is Figure 4 , Figure 5 The shown right end passes through the second shaft head hole 72 of the right bearing seat 65 and is pivoted on the bearing. figure 1 On the right wallboard 33 shown, and the same way as embodiment 1, the large gear 35 and the third spline 56 are fixed. When t...

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Abstract

The invention relates to an energy-saving and safe micro-electric hoist which belongs to the technical field of lifting devices and comprises a main shell provided with a first shell cavity, a first case which is arranged at one end of the main shell and provided with a second shell cavity, a second case which is arranged at the other end of the main shell and provided with a third shell cavity, and a roller mechanism and a motor which are arranged in the first shell cavity in horizontal state in a mutual parallel way; the invention is characterized in that the motor is a direct current permanent magnet motor; the third shell cavity is internally provided with a brake mechanism which is used for implementing braking to the roller mechanism and making response to the over lifting of the roller mechanism; the brake mechanism is coupled with the roller mechanism and the motor in an transmission mode. The invention has the advantages that the motor adopts the direct current permanent magnet motor, thus being beneficial to improving power, reducing size and saving energy and copper resource; the braking mechanism also has the advantages of having stable and reliable braking; when the lifted object is overweight, the structure of the brake mechanism can realize control, thus ensuring safety.

Description

technical field [0001] The invention belongs to the technical field of lifting devices, and in particular relates to an energy-saving and safe miniature electric hoist. Background technique [0002] The concept of the miniature electric hoist mentioned above refers to the electric hoist with a lifting capacity of about 500kg. This kind of miniature electric hoist is widely used in industrial and mining enterprises, commercial warehouses, supermarkets, shopping malls and logistics industries, as well as home garages, storage rooms, high-rise buildings, etc. Housing, repair industry, etc. In the Chinese patent literature, various technical solutions about the miniature electric hoist can also be seen, the more representative miniature electric hoist disclosed as the Chinese invention patent application publication number CN101007619A (applied by the applicant), the technical scheme of the patent application The achievements are: easy installation, no overturning during use; e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/58B66D1/54B66D5/08B66D1/12B66D1/14
Inventor 陆颖杰陆正岳郁正叶
Owner CHANGSHUSGULL CRANE & HOIST MACHINERY