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Internal groove wheel drive mechanism and application thereof in on-load tap-changer

A technology of on-load tap changer and tap changer, which is applied in the direction of contact drive mechanism, electric switch, mechanical equipment, etc. It can solve the problems of uncompact structure, many parts, complex and complicated selector, etc., and achieve compact structure and accurate positioning , the effect of reasonable force

Active Publication Date: 2009-04-15
SHANGHAI HUAMING POWER EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The use of external sheave mechanism has problems such as many parts, uncompact structure, complicated selector, etc.

Method used

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  • Internal groove wheel drive mechanism and application thereof in on-load tap-changer
  • Internal groove wheel drive mechanism and application thereof in on-load tap-changer
  • Internal groove wheel drive mechanism and application thereof in on-load tap-changer

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Embodiment Construction

[0045] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following describes how the inner sheave drive of the present invention is applied to an on-load tap-changer in combination with specific illustrations.

[0046] See image 3 4, the inner groove wheel drive mechanism of the tap changer selector includes the power input shaft 100, the main passive disc 200, the auxiliary passive disc 300, the shift member 400, the shift member 500, the polarity shift roller 600, and the polarity The shifting part 700, the polarity shifting shaft 800, the polarity power output shaft 900, the polarity selection mounting part 1000 (the same body as the selector barrel 1200), the bevel gear pair, these parts are assembled in the tap changer selector Between the chassis 1100 and the selector barrel 1200 to form the inner groove wheel drive mechanism of the tap changer selector, the specific structure is as foll...

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PUM

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Abstract

The invention discloses an application of an inner grooved sheave mechanism in an on-load tapping switch; a drive mechanism of the inner grooved sheave is used for replacing the existing outer grooved sheave for realizing the action of a selector of the taping switch. The invention also discloses the drive mechanism of the inner grooved sheave of the selector of the tapping switch, which can meet the requirements on the drive actions of the selector of the tapping switch; the drive mechanism comprises a power input shaft, a poke part which can rotate synchronously with the power input shaft, and a groove poke part which rotates around the power input shaft by the poke part; groove poke rolling wheels and the same number of locking arcs are arranged on the groove poke part; driven disks are matched with the groove poke rolling wheels in pairs, are stirred by the groove poke rolling wheels and synchronously rotate with the groove poke part; the driven disks generate the intermittent rotation and the corresponding locking to drive the connection, the disconnection and the locking of movable and static contacts of the selector of the tapping switch; the driven mechanism of the invention additionally comprises a polarity selection and conversion drive unit to realize the polarity conversion control of the selector of the tapping switch; all the units are organically combined and take the ordered actions to commonly realize the switch drive of the selector of the tapping switch.

Description

Technical field [0001] The invention relates to a new use of a mechanical transmission mechanism and the technical field of on-load tap changers for transformers, in particular to the application of an inner sheave drive mechanism in an on-load tap changer and an inner sheave drive mechanism of a tap switch selector. Background technique [0002] The on-load tap-changer is used in power transformers or industrial transformers. When the transformer does not terminate the load current (that is, under load), it performs tap change and changes the output turns ratio of the transformer, thereby adjusting the output voltage of the transformer . [0003] Generally speaking, the combined on-load tap-changer is composed of a switch with current conversion and a tap selector that pre-selects the tap position without current. The tap selectors currently in use usually include a sheave mechanism and a cage-type moving and static contact system. The sheave mechanism is a progressive transmiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F29/04H01H3/40F16H27/06F16H35/00
CPCH01H9/0027
Inventor 肖日明肖毅肖申
Owner SHANGHAI HUAMING POWER EQUIP CO LTD
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