CN103489670A

CN103489670A - Compact type brake separating and tripping device for spring operating mechanism

Info

Publication number: CN103489670A
Application number: CN201310431282.6A
Authority: CN
Inventors: 马德安; 辛重文
Original assignee: Shaanxi Get Rui Power Equipment Co Ltd
Current assignee: Shaanxi Get Rui Power Equipment Co Ltd
Priority date: 2013-09-22
Filing date: 2013-09-22
Publication date: 2014-01-01
Anticipated expiration: 2033-09-22
Also published as: CN103489670B

Abstract

The invention provides a compact type brake separating and tripping device for a spring operating mechanism. The compact type brake separating and tripping mechanism at least comprises two levels of tripping hooks, the primary tripping hook comprises a primary tripping connecting plate (1) which is arranged in an output connecting plate and can rotate around the center of the primary tripping hook, a compression spring (3) pushing the primary tripping connecting plate (1) to reset and a locating pin (10) limiting the position of the primary tripping connecting plate (1), the primary tripping connecting plate (1) abuts against a rolling wheel (13) of the secondary tripping hook when brake closing is finished, and the rolling wheel (13) of the secondary tripping hook and a secondary tripping running pulley (11) arranged on a secondary tripping connecting plate (12) are arranged in two planes P1 and P2. The compact type brake separating and tripping device is simple in structure, convenient to operate and safe.

Description

A kind of Sub-gate release device of the compact for spring operating mechanism

Technical field

The present invention relates to the running part for the high-voltage breaker spring operating mechanism, tripping function when this device is realized padlock function in making process and separating brake.

Background technology

Operating mechanism is the topmost parts of primary cut-out, and the electric signal of combined floodgate and separating brake all drives circuit breaker to realize connecting and disjunction by operating mechanism.Trip gear is the core of spring operating mechanism, is the key that converts electrical signals to mechanical action.If trip gear breaks down, circuit breaker can't self-locking at closing position, or receives refusal operation after order, is the catastrophe failure of electric power system.According to statistics in the past, the more than half because operating mechanism of the fault of electric power system mesohigh circuit breaker former thereby cause.

The spring operating mechanism of primary cut-out in the past, the structure of the commonly mass motion of motion hook of its Sub-gate release device, be a hook part that volume is very large often, the moment of inertia in rapid movement is very large, and this just needs to be equipped with the very large back-moving spring of spring force and matches.The shortcoming of said mechanism design is that parts are many, and volume is large, complex structure.Simultaneously, because have collision can cause that hook has spring in combined floodgate in motion, if back-moving spring does not provide enough strength to make the hook Rapid reset in time, catastrophe failure that can't self-locking and automatic separating brake after operating mechanism will close a floodgate.

Simultaneously, dropout hook in the past all adopts floor plan, and two connecting rods of the hook of threading off are in a plane.Generally distant in order to leave two connecting rods of enough spaces to the parts such as roller that are connected with the dropout hook, common angle between 180 degree, needs larger planar dimension to arrange above-mentioned dropout hook and the roller be associated at 90 degree.

Summary of the invention

For the problem of mentioning in background technology, the invention provides a kind of two-stage dropout hook that at least comprises.

A kind of Sub-gate release device of the compact for spring operating mechanism, at least comprise two-stage dropout hook, wherein said one-level trip dog attached bag can be around the one-level dropout connecting plate (1) of one-level trip dog subcenter rotation containing being positioned at the output connecting plate, and promote the Compress Spring (3) that described one-level dropout connecting plate (1) resets and limit the alignment pin (10) of described one-level dropout connecting plate (1) position, described one-level dropout connecting plate (1) withstands on the roller (13) of secondary dropout hook when closing a floodgate end, the roller (13) of secondary dropout hook wherein and the secondary dropout roller (11) be arranged on secondary dropout connecting plate (12) are positioned at and two plane P 1 and P2, described two plane P 1 and P2 are all perpendicular with secondary trip dog subcenter (14).

The front end of described one-level dropout connecting plate (1) is telescopic structure, and after arriving the snap close position, spring force makes the front end of described one-level dropout connecting plate (1) cross the center of the roller (13) that secondary threads off and withstands on the surface of this roller (13).

When described one-level dropout connecting plate (1) withstands on secondary dropout roller (13) surface, act on pressure spot on secondary dropout roller (13) and cross the line of secondary trip dog subcenter (14) and one-level trip dog subcenter (2), and arm of force L1 is 1.1 ~ 1.4 times of secondary dropout hook rotating shaft pivot pin friction circle radius R 1.

Roller (13) in described secondary dropout hook and secondary dropout connecting plate (12) are positioned on two plane P 1 and P2 be parallel to each other, distance B 1 between described two plane P 1 and P2 is at 30mm ~ 100mm, and the included angle A 1 at connecting plate (12) the center of rotation line in described secondary dropout hook and the center of roller (13) is less than 45 degree.

The invention has the beneficial effects as follows simple in structure, easy and simple to handle, safety.

The accompanying drawing explanation

Fig. 1 be operating mechanism of the present invention in "on" position, switching-in spring is energy storage not.

Fig. 2 be operating mechanism of the present invention in gate-dividing state, switching-in spring is energy storage, prepares closing operation.

Fig. 3 is the partial enlarged drawing of dropout hook.

Fig. 4 is the structure of secondary dropout hook.

Embodiment

The separating brake tripping system designed in the present invention at least comprises one-level dropout hook and secondary dropout hook, above-mentioned two-stage dropout hook is all realized compact design, comprises output connecting plate (4) and is arranged on combined floodgate roller (8), Compress Spring (3), the one-level dropout connecting plate (1) in output connecting plate (4); Also comprise roller (13), secondary dropout connecting plate (12) and secondary dropout roller (11).At the separating brake of anticipating shown in Fig. 2 and the switching-in spring position of energy storage, after starting to close a floodgate, cam (7) presses combined floodgate roller (8) and rotates around output revolving shaft (5) clockwise.When making process finishes, will export connecting plate (4) by described trip gear and remain on closing position, stop the pulling force of tripping spring will export connecting plate (4) reverse rotation.Form the running part of spring operating mechanism together with described compact trip gear and energy storing drive axle (6) and cam (7), operation output shaft (5), combined floodgate trip gear, complete closing operation and the sub-switching operation of spring operating mechanism.

Wherein one-level dropout hook is positioned on the output connecting plate (4) that same output revolving shaft (5) rotates together, described trip dog attached bag can be around the one-level dropout connecting plate (1) of one-level trip dog subcenter (2) rotation containing being positioned at output connecting plate (4), and promote the Compress Spring (3) that described one-level dropout connecting plate (1) resets and limit the alignment pin (10) of described one-level dropout connecting plate (1) position, described one-level dropout connecting plate (1) withstands on the roller (13) of secondary dropout hook when closing a floodgate end, and operating mechanism is remained on to closing position.

The roller (13) of secondary dropout hook wherein is positioned at two planes vertical with the rotating shaft of secondary dropout hook with secondary dropout roller (11) on being arranged on secondary dropout connecting plate and criticizes P1 and P2, and two planes maintain a certain distance D1 to avoid the described parts that are connected with secondary dropout connecting plate roller (11), roller (13) mutually to interfere at the volley.

In order to reduce the moment of inertia of hook motion parts, the one-level hook of threading off is designed to the structure of a kind of extension type of local motion, be that one-level dropout connecting plate (1) is after arriving the snap close position, spring force makes one-level dropout connecting plate (1) front end cross the center of the roller (13) that secondary threads off and withstands on the surface of this roller (13), stop tripping spring power to pull output connecting plate (4) to return to open position, make operating mechanism remain on reliably closing position.It is the one-level dropout connecting plate (1) that moment of inertia is little that telescopic mechanism is designed with moving-mass little, being designed with the Compress Spring that elastic force is less (3) in mechanism makes one-level dropout connecting plate (1) move to correct position in the combined floodgate dynamic process, overcome because the moving component moment of inertia causes greatly spring, and then cause the defect of misoperation.

In order to guarantee that one-level dropout hook can thread off smoothly, reduce tripping force simultaneously as far as possible, detailed design the length and location of dropout arm of force L1.When one-level dropout hook (1) withstands on secondary dropout roller (13) surface, act on pressure spot on secondary dropout roller (13) and must cross the line of secondary trip dog subcenter (14) and one-level trip dog subcenter (2), and arm of force L1 is between 1.1 to 1.4 times of secondary dropout hook rotating shaft pivot pin friction circle radius R 1.

For saving the aspect, space, consider equally, thread off roller (13) in hook and secondary dropout connecting plate (12) of secondary designed in two plane P 1 that are parallel to each other and P2, and the distance B 1 between described two planes is between 30 millimeters to 100 millimeters.The common roller a floor plan and secondary dropout connecting plate, in order to guarantee not interfere with other part in rotation process, need to be designed to included angle A 1 and be greater than 90 degree, so just elongates the length of whole secondary dropout hook; And the included angle A 1 of the connecting plate (12) in the dropout of secondary described in the present embodiment hook and roller (13) is less than 45 degree, save space.

Claims

1. the Sub-gate release device of the compact for spring operating mechanism, it is characterized in that, at least comprise two-stage dropout hook, wherein one-level trip dog attached bag can be around the one-level dropout connecting plate (1) of one-level trip dog subcenter rotation containing being positioned at the output connecting plate, and promote the Compress Spring (3) that described one-level dropout connecting plate (1) resets and limit the alignment pin (10) of described one-level dropout connecting plate (1) position, described one-level dropout connecting plate (1) withstands on the roller (13) of secondary dropout hook when closing a floodgate end, the roller (13) of secondary dropout hook wherein and the secondary dropout roller (11) be arranged on secondary dropout connecting plate (12) are positioned at and two plane P 1 and P2, described two plane P 1 and P2 are all perpendicular with secondary trip dog subcenter (14).

2. trip gear according to claim 1, it is characterized in that, the front end of described one-level dropout connecting plate (1) is telescopic structure, after arriving the snap close position, spring force makes the front end of described one-level dropout connecting plate (1) cross the center of the roller (13) that secondary threads off and withstands on the surface of this roller (13).

3. according to claim 1 or trip gear claimed in claim 2, it is characterized in that, when described one-level dropout connecting plate (1) withstands on secondary dropout roller (13) surface, act on pressure spot on secondary dropout roller (13) and cross the line of secondary trip dog subcenter (14) and one-level trip dog subcenter (2), and arm of force L1 is 1.1 ~ 1.4 times of secondary dropout hook rotating shaft pivot pin friction circle radius R 1.

4. trip gear according to claim 1, it is characterized in that, roller (13) in described secondary dropout hook and secondary dropout connecting plate (12) are positioned on two plane P 1 and P2 be parallel to each other, distance B 1 between described two plane P 1 and P2 is at 30mm ~ 100mm, and the included angle A 1 at connecting plate (12) the center of rotation line in described secondary dropout hook and the center of roller (13) is less than 45 degree.