CN201796822U

CN201796822U - Assembling structure between circuit breaker spindle provided with buffer and buffer

Info

Publication number: CN201796822U
Application number: CN2010202624736U
Authority: CN
Inventors: 贾耀华; 张炯
Original assignee: Henan Senyuan Electric Co Ltd
Current assignee: Henan Senyuan Electric Co Ltd
Priority date: 2010-07-19
Filing date: 2010-07-19
Publication date: 2011-04-13
Anticipated expiration: 2020-07-19

Abstract

The utility model discloses an assembling structure between a circuit breaker spindle provided with a buffer and the buffer; the spindle (3) is provided with a limit check block (5), and is fixed on three brackets (4); when a circuit breaker is in tripping, the spindle is provided with a buffer mounting seat (7) along the moving direction; the buffer (6) is fixed on the buffer mounting seat (7); and the outer side of the buffer (6) is provided with thread. As for the assembling structure, rebound and overshoot in the tripping process can be effectively reduced by adjusting the depth of the buffer (6) screwed into the buffer mounting seat (7), thus ensuring the performance of the circuit breaker to be more stable.

Description

A kind of circuit breaker main shaft of buffer and assembly structure of buffer of having

Technical field

The utility model relates to a kind of circuit breaker in the electrical power distribution system switchgear, and is special relevant with the assembly structure of circuit breaker main shaft and buffer.

Background technology

In electrical power distribution system switchgear circuit breaker design, cooperating between main shaft and buffer is very accurate, and it is related to the stability of the mechanical property of the performance of circuit breaker own, so cooperating between main shaft and the buffer seems particularly important.At present, the circuit breaker of most of linear drives is mainly realized spacing by rubber blanket and pad.Behind the breaker open operation, main shaft directly impinges upon on the pad, absorbs excess energy by rubber blanket.Easily cause the distortion of pad in this structure after rubber blanket absorption finite energy and the circuit breaker multi-pass operation, so this structure has not almost had effect to the inhibition to the disadvantageous bounce-back of circuit breaker performance and these two parameters of overshoot in the separating brake process.Therefore this structure can not satisfy the requirement of new standard.

The utility model content

The purpose of this utility model is to design a kind of circuit breaker main shaft of simple and fast and assembly structure of buffer of assembling.

The technical solution of the utility model is: the assembly structure of a kind of circuit breaker main shaft and buffer is characterized in that positive stop is housed, and main shaft is fixed on three supports on main shaft.The buffer mount pad is housed on the motion of main shaft direction when breaker open operation, and buffer is fixed on the buffer mount pad, and there is screw thread in the buffer outside.

The circuit breaker main shaft that the utility model provides and the assembly structure of buffer, during breaker open operation, main shaft is to the direction motion that buffer is arranged, when positive stop moves in the absorption stroke of buffer, buffer absorbs excess energy in the breaker open operation process, by regulating the degree of depth of buffer precession mount pad, can effectively reduce bounce-back and overshoot in the separating brake process, thereby make the performance of circuit breaker more stable.

Description of drawings

Fig. 1 is the assembly structure schematic diagram of existing circuit breaker main shaft and buffer;

Fig. 2 is the structural representation of the assembly structure embodiment of the utility model circuit breaker main shaft and buffer.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Among the figure: 1, rubber blanket 2, pad 3, main shaft 4, support 5, positive stop

6, buffer 7, buffer mount pad

As shown in Figure 2, the assembly structure of the utility model circuit breaker main shaft and buffer is that positive stop (5) is housed on main shaft (3), main shaft (3) is fixed on 3 supports (4), buffer mount pad (7) is housed on the motion of main shaft direction when breaker open operation, buffer (6) is fixed on the buffer mount pad (7), and there is screw thread in buffer (6) outside.During assembling, positive stop (5) matches with buffer (6).

During breaker open operation, main shaft is to the direction motion that buffer is arranged, when positive stop moves in the absorption stroke of buffer, buffer absorbs excess energy in the breaker open operation process, by regulating the degree of depth of buffer precession mount pad, can effectively reduce bounce-back and overshoot in the separating brake process, thereby make the performance of circuit breaker more stable.

Claims

1. one kind has the circuit breaker main shaft of buffer and the assembly structure of buffer, it is characterized in that: positive stop (5) is housed on main shaft (3), main shaft (3) is fixed on 3 supports (4), buffer mount pad (7) is housed on the motion of main shaft direction when breaker open operation, buffer (6) is fixed on the buffer mount pad (7), and there is screw thread in buffer (6) outside.