Spring arrangement for spring drive unit and spring drive unit comprising spring arrangement

一种弹簧装置、弹簧驱动的技术，应用在弹簧装置领域，能够解决导向管要求高、闭合弹簧弯曲风险大等问题，达到轻重量、具有成本效益、少元件的效果

Inactive Publication Date: 2009-07-01
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the risk of bending the closing spring is greater and the demands placed on the guide tube are higher

Method used

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  • Spring arrangement for spring drive unit and spring drive unit comprising spring arrangement
  • Spring arrangement for spring drive unit and spring drive unit comprising spring arrangement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 Shown in is an embodiment of a spring arrangement 1 according to the invention mounted on a spring drive unit 2 used in electrical switching apparatus, eg circuit breakers for medium and high voltage. The main parts and operation of spring drive units for circuit breakers and switches have been described above.

[0027] The basic elements of a spring drive unit are two springs, a closing spring 3 for closing the switch and an opening spring 4 for opening the switch. Since many details of the opening spring 4 and the closing spring 3 are the same, some of the reference numerals used for these details are only used for one of the springs, namely the opening spring. Each spring is connected via tie rods 5, 6 to a loading and unloading mechanism (not shown) located inside the housing of the spring drive unit 2 . Each spring has a lower first spring end 8 to which a first tie rod end 11 is connected, eg via a spring disk 10 , and an upper second spring end 9 mount...

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PUM

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Abstract

The invention describes a spring arrangement for spring drive unit, which spring arrangement comprises a spring, a pullrod connected at a first pullrod end to a first spring end of the spring and connected at an opposite second pullrod end to a rotary shaft of the spring drive unit, a frame plate against which a second spring end of the spring is mounted and the frame plate being provided with anopening through which the pullrod extends to be connected to the shaft. Further, the first spring end of the spring, to which the pullrod is connected, is unguided, and the parameters of the spring are chosen in response to the operating conditions of the spring drive unit such that the spring is stable during operation.

Description

technical field [0001] The present invention relates to a spring device for a spring drive unit, eg for driving and controlling the opening and closing of electrical switching devices such as switches or circuit breakers. The switchgear is intended to be used in high- or medium-voltage transmission or distribution networks, and thus in the voltage range from one kilovolt to several hundred kilovolts. The spring driven unit can operate all types of circuit breakers, eg gas, oil or vacuum insulated circuit breakers of live tank or dead tank type. [0002] Spring drive units can also be used in other applications. In principle, they can be used anywhere that something needs to be moved very quickly. [0003] The invention also relates to a spring drive unit comprising the spring device of the invention, and to the use of the spring drive unit of the invention for driving and controlling the opening and closing of electrical switching devices. Background technique [0004] In...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01H3/30H01H33/40
CPCH01H33/40H01H3/3026
InventorJ·特雷道克斯S·雅各布森
OwnerABB (SCHWEIZ) AG