CN2901552Y

CN2901552Y - Large travel distance position limit mechanism of three work position isolation switch

Info

Publication number: CN2901552Y
Application number: CN 200620072680
Authority: CN
Inventors: 陈卫国; 宋军会
Original assignee: Daqo Group Co Ltd
Current assignee: Daqo Group Co Ltd
Priority date: 2006-04-24
Filing date: 2006-04-24
Publication date: 2007-05-16
Anticipated expiration: 2016-04-24

Abstract

The utility model belonging to medium and high pressure switch apparatus relates to a large stroke spacing mechanism of a triplex station disconnecting switch, comprising a rotatable component transmitted by a switch revolution axis, wherein the rotatable component is provided with a block, an active position block is arranged on the stroke of the block, the active position block is disposed in the middle of a transition board and the two ends of the transition board are separately opened with chutes; a pair of swinging arms are arranged on the two sides of the transition board, revolution axes in the middle of the swinging arms are disposed on the fixed base, the swinging arms on the same side of the two revolution axes are separately provided with pintles and the two pintles are separately limited inside the chutes on the two ends of the transition board; a fixed position block is arranged between the forepart inner sides of the two swinging arms and the rear parts of the two swinging arms are connected with each other by an extension spring. The large stroke spacing mechanism of triplex station disconnecting switch of the utility model can limit the rotatable stroke of the rotatable component inside the disconnecting switch in larger angle range.

Description

The big stroke limit mechanism of tri-station isolating switch

Technical field

The utility model belongs to middle and high voltage switching station, relates to a kind of big stroke limit mechanism of tri-station isolating switch.

Background technology

The effect of stroke limit mechanism is that the positional information of switch at different station outputed in the auxiliary equipments such as location mark device, locking device in the isolating switch, its common structure is that block (backing pin) is set on rotating axis component, and fixing locating piece (alignment pin) is set outside rotating axis component, by the cooperation of block and locating piece, make the rotating distance of switch obtain spacing.But in existing this type of rotating distance position-limit mechanism, because block and locating piece itself must occupy certain stroke range, thereby its can be spacing maximum rotating distance all less than 360 degree, when the structure of switch need near or carry out then being difficult to realize when spacing greater than the rotating distances of 360 degree.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of big stroke limit mechanism that can carry out spacing tri-station isolating switch to the rotating distance than polarizers of big angle scope.

The big stroke limit mechanism of the utility model tri-station isolating switch includes the rotatable parts by switch rotating shaft transmission, rotatable parts are provided with a block, the stroke of block is provided with an activity orientation piece, described activity orientation piece is installed in the middle part of a rebound, and the two ends of rebound have chute; Be provided with a pair of swing arm in the both sides of rebound, the rotating shaft at swing arm middle part is positioned on the fixing matrix, is fixed with pin in the swing arm of two rotating shaft the same sides respectively, and two pins are limited in respectively in the chute at above-mentioned rebound two ends; Be provided with a stationary positioned piece between the leading portion inboard of two swing arms, the back segment of two swing arms interconnects by extension spring.The outside of two swing arm leading portions also can be respectively arranged with the assist location pin.

The utility model is when work, because the block on the rotatable parts is realized indirect addressing by the activity orientation piece on the rebound, swing arm and stationary positioned piece, make the rotatable parts positioning of rotating angular range can near or surpass 360 degree, thereby can satisfy the positioning requirements of big stroke.

Description of drawings

Fig. 1 is the structural representation of mechanism of the present utility model when an extreme position;

Fig. 2 is the structural representation of mechanism of the present utility model when another extreme position.

Embodiment

As shown in the figure, the rotatable parts 1 in this structure are by the rotating shaft transmission of switch, and rotatable parts are provided with block 2.

When rotatable parts 1 clockwise rotate certain position, block 2 on the rotatable parts contacts with activity orientation piece 3 from the top and promotes the activity orientation piece and rebound 4 moves downward, after rebound moves down a segment distance, the chute 5 of rebound upper end spacing down, pin 7 in the swing arm 6 of top is driven downwards, thereby the swing arm of top is clockwise rotated around its rotating shaft 8, swing arm leading portion up to the top arrives stationary positioned piece 9 (being position shown in Figure 1), the location of realizing first extreme position.

When rotatable parts 1 when first extreme position begins to rotate counterclockwise, the block 2 of rotatable parts turns over most of stroke earlier, contact with activity orientation piece 3 from the below then and promote the activity orientation piece and rebound 4 moves upward, rebound moves up behind the segment distance, the chute 5 of rebound lower end spacing down, pin 7 in the swing arm 6 of below is upwards driven, thereby the swing arm of below is rotated counterclockwise around its rotating shaft 8, swing arm leading portion up to the below arrives stationary positioned piece 9 (being position shown in Figure 2), the location of realizing second extreme position.

Two above-mentioned swing arm 6 back segments interconnect by extension spring 10, when a swing arm is driven by rebound 4, another swing arm can not swung arbitrarily thereupon rotating, and the effect of the assist location pin 11 in the two swing arms outside also is to assist spacing to the swing arm position of servo-actuated.

Claims

1, a kind of big stroke limit mechanism of tri-station isolating switch, include rotatable parts (1) by switch rotating shaft transmission, rotatable parts are provided with a block (2), it is characterized in that: the stroke of block (2) is provided with an activity orientation piece (3), described activity orientation piece is installed in the middle part of a rebound (4), and the two ends of rebound have chute (5); Be provided with a pair of swing arm (6) in the both sides of rebound, the rotating shaft (8) at swing arm middle part is positioned on the fixing matrix, is fixed with pin (7) in the swing arm of two rotating shaft the same sides respectively, and two pins are limited in respectively in the chute (5) at above-mentioned rebound two ends; Be provided with a stationary positioned piece (9) between the leading portion inboard of two swing arms, the back segment of two swing arms interconnects by extension spring (10).

2, the big stroke limit mechanism of tri-station isolating switch according to claim 1, it is characterized in that: the outside of two swing arms (6) leading portion is respectively arranged with assist location pin (11).