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Mechanical latch unit for a main drive unit

A mechanical locking and locking device technology, applied in emergency protection devices, parts of protection switches, operation/release mechanisms of protection switches, etc., can solve complex, high cost and other problems, and achieve the effect of improving the cost-performance ratio

Active Publication Date: 2012-04-18
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Typically, these requirements and operating conditions imply a complex and high-quality and thus costly system design, mainly based on electromechanical subsystems

Method used

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  • Mechanical latch unit for a main drive unit
  • Mechanical latch unit for a main drive unit
  • Mechanical latch unit for a main drive unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 A side view (section view) of the latching device is shown. The main components of the locking device 1 are:

[0026] - a housing 9 with two housing plates 10,

[0027] - the main lever (=first link) 20 inside the casing 9 with a bottom end and a top end,

[0028] - the main bearing 25 (=first joint) with the shaft 26 fixed to the case 9 at the bottom end of the main lever 20,

[0029] - a catch (contact) main roller 30 in contact with the (free) top end of the main lever 20 , wherein the catch main roller 30 can movement within slot 13 (loosely coupled),

[0030] - a release link 50 (=third link) with a first end, a pivot center and a second end, wherein the pivot center is fixed to the housing 9 by a bearing 55 (=fourth joint),

[0031] - a release link 40 (=second link) with a first end and a second end, wherein the first end is fixed at the top end of the main lever 20 by a joint 35 (=second joint), and the second end is fixed at the second end of the...

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PUM

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Abstract

The invention is related to a mechanical latch unit (1 ) for a main drive (120) unit with a permanently coupled four bar latch mechanism within a housing (9), - with a first link (20) with a base end connected with the housing (9) via a first joint (25) and with a top end connected with the first end of a second link (40) via a second joint (35), - with a third joint (45) to connect the second end of the second link (40) with the second end of a third link (50), - whereby the first end of the third link (50) interconnects with a trip unit and a pivot centre of the third link (50) is connected with the housing (9) via a fourth joint (55), - whereby the second joint (35), the third joint (45) and the fourth joint (55) approximately are lying in one line and - whereby the load (F) of the traction link (121 ) of the main drive unit (120) is applied to the top end of the first link (20); next to the second joint (35) with defined deviation (d1 ) rectangular to this line in direction to the first joint (25).

Description

technical field [0001] The invention relates to a mechanical latch unit for a main drive. Background technique [0002] A mechanical locking device is used to lock / release a mechanical system, in particular a mechanism formed by links and joints, in defined positions or operating phases. A typical application of latching devices can be found in electromechanical primary drives for contact systems of circuit breakers. The technical field involves low, medium and high pressure. In particular, the requirements for these locking devices in the mentioned fields of application are: [0003] - high reliability, [0004] - high robustness to shock and overload conditions, [0005] - high temperature range, [0006] - high repeatability with the lowest possible response time distribution (scatter), [0007] - Shortest and adjustable reaction time and total mechanical operating time. [0008] Typically, these requirements and operating conditions imply a complex and high-qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/50H01H9/20
CPCH01H71/505H01H2071/508H01H9/20H01H2071/506
Inventor A·哈克巴特C·布德G·梅希勒R·克拉德尼S·布雷施S·泽特比尔D·斯塔法斯
Owner HITACHI ENERGY SWITZERLAND AG