CN202695346U

CN202695346U - Driving mechanism of circuit breaker operation counter

Info

Publication number: CN202695346U
Application number: CN 201220343541
Authority: CN
Inventors: 任山波; 李惠敏; 叶磊; 崔华
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2012-07-14
Filing date: 2012-07-14
Publication date: 2013-01-23
Anticipated expiration: 2022-07-14

Abstract

The utility model discloses a driving mechanism of a circuit breaker operation counter. The driving mechanism comprises a counter, wherein the counter is fixed on the outer side face of a first bracket; a swinging arm of the counter is contacted with a swinging end of a guide rod; at least one installation hole is formed in a guide section of the guide rod; a supporting shaft is arranged in the installation hole; one end of a return spring is arranged on the supporting shaft, and the other end of the return spring is connected to the guide section of the guide rod; the guide rod can slide on the supporting shaft; the guide rod can be returned to an initial position under the action of the return force of the return spring; and the supporting shaft is fixed on a second bracket. By adoption of the return spring and a guide sliding rod, rotation motion is converted into the rectilinear motion of a guide plate, so the counter is driven to operate, influence of the vibration of a circuit breaker motor on a counter driving mechanism is avoided, and the problems of non-centering of a display position and vibration during operation of the counter are solved. The driving mechanism of the circuit breaker operation counter is simple in structure, high in stability, convenient to install and attractive in display effect.

Description

The driving mechanism of breaker operator counter

Technical field

The utility model belongs to the low voltage electrical apparatus technology field, specifically just relates to a kind of driving mechanism of breaker operator counter, by this driving mechanism can be stable breaker circuit cut-off/close number of times is carried out automated enumeration.

Background technology

Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application.Low-voltage circuit breaker claims again automatic switch, is commonly called as " air switch " and also refers to low-voltage circuit breaker, and it is a kind of existing hand switch effect, can automatically carry out again decompression, under-voltage, overload and the electrical equipment of short-circuit protection.It can be used to distribute electric energy; do not start continually asynchronous motor; power circuit and motor etc. are carried out protection; can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for their; its function is equivalent to the combination of Fuse switch and mistake underheat relay etc.; and behind the disjunction fault current, generally do not need to change parts, obtain a wide range of applications.

Simultaneously, for the operation lifetime that detects circuit breaker and the time of changing its parts, circuit cut-off/close number of times to circuit breaker is counted, at circuit breaker operation counter is installed, the driving mechanism of traditional breaker operator counter mostly is installed on the motor, the weak point that the driving mechanism of operation counter is installed on the motor is: when the electric motor starting energy storage, itself has vibration motor, this moment, the counter on the motor face shield also can produce vibration thereupon, long-term vibrations can cause counter to come off, even produce the coarse defective of counting; In addition, the driving mechanism of operation counter is installed in motor and also can causes the driving mechanism of operation counter that complicated shortcoming is installed, and the display position of counter on face shield is offset.

The utility model content

Be installed on the motor for the driving mechanism of existing breaker operator counter and easily come off, counting is shortcoming accurately not, the driving mechanism of the breaker operator counter that the utility model provides is installed by counter being broken away from motor, when making counter works not with motor oscillating, stability improves, the counting accuracy strengthens, and is simple in structure, easy for installation.

Technical scheme

In order to realize above-mentioned technical purpose, the utility model designs a kind of driving mechanism of breaker operator counter, it comprises counter, it is characterized in that: it also comprises the first support, guide post, the second support, back-moving spring and back shaft, described counter is fixed on the first support lateral surface, the swing arm of counter contacts with the swinging end of guide post, have at least one installing hole on the guide section of guide post, back shaft is housed in the hole, back-moving spring one end is contained on the back shaft, the other end is connected on the guide section of guide post, guide post can slide at back shaft, the restoring force of back-moving spring can make guide post return to original position, and back shaft is fixed on the second support.

Further, described the first support is fixed on the face shield of circuit breaker.

Further, the non-swing arm end of the guide section of described guide post is propped up by the projection on the motor cam

Further, the installing hole on the described guide post is mounting hole.

Further, the non-swing arm end of the guide section of described guide post also stretches out swing arm, and the cantilever that swing arm is stretched out in the rotating shaft props up.

Beneficial effect

The utility model utilizes back-moving spring and guiding Slide bar structure, the rectilinear motion that is converted into guide plate with rotatablely moving comes the actuation counter action, avoided the vibrations of circuit-breaker-motor on the impact of counter driving mechanism, solved simultaneously the display position problem with shaking placed in the middle in the counter works, simple in structure, stability is high, easy for installation, shows attractive in appearance.

Description of drawings

Accompanying drawing 1 is the utility model the first embodiment operating state perspective view.

Accompanying drawing 2 is the utility model first embodiment operating state master apparent direction structural representations.

Accompanying drawing 3 is the utility model first embodiment mounting structure schematic diagrames.

Accompanying drawing 4 is the utility model second embodiment operating state perspective view.

Accompanying drawing 5 is the utility model second embodiment operating state master apparent direction structural representations.

Embodiment

Below in conjunction with drawings and Examples the utility model is described further.

Such as accompanying drawing 1, shown in 2 and 3, the first preferred embodiment of the present utility model, a kind of driving mechanism of breaker operator counter, it comprises counter 1, wherein, it also comprises the first support 2, guide post 3, the second support 4, back-moving spring 5 and back shaft 6, described counter 1 is fixed on the first support 2 lateral surfaces, the swing arm of counter 1 contacts with the swinging end of guide post 3, have at least one installing hole 301 on the guide section of guide post 3, back shaft 6 is housed in the hole, back-moving spring 5 one ends are contained on the back shaft 6, the other end is connected on the guide section of guide post 3, and guide post 3 can slide at back shaft 6, and the restoring force of back-moving spring 5 can make guide post 3 return to original position, back shaft 6 is fixed on the second support 4, described the first support 2 is fixed on the face shield 7 of circuit breaker, and the non-swing arm end of the guide section of described guide post 3 is propped up by the projection 8 on the motor cam, and the installing hole 301 on the described guide post 3 is mounting hole.When the motor energy storage, cam on the motor is rotated counterclockwise, and 8 dozens of the projections of motor cam force guide post 3 to travel forward on guide post 3, proal guide post 3 is beaten then in the swing arm of counter 1, and angle of the swing arm of counter 1 rotation is finished tally function one time; Cam revolution on motor, guide post 3 returns to original position under the restoring force effect of back-moving spring 5.

The non-swing arm end of the guide section that the second embodiment of the present utility model is guide post 3 also stretches out swing arm 302, the cantilever 9 that swing arm 302 is stretched out in the rotating shaft props up, the first support 2 is fixed on the face shield 7 of circuit breaker, the second support 4 is contained on mechanism's cover plate of circuit breaker, when mechanism closes a floodgate, the cantilever 9 that stretches out in the rotating shaft is rotated counterclockwise, 9 dozens on this cantilever is in guide post 3 swing arms 302, force guide post 3 to travel forward, proal guide post 3 is beaten then in the swing arm of counter 1, angle of swing arm rotation of counter 1 is finished tally function one time, when the cantilever 9 that stretches out in the rotating shaft turned round, guide post 3 returned to original position under the restoring force effect of back-moving spring 5.

It all around is the relative position of each part described in the embodiment of the invention; it is not the absolute position; the claimed technical scheme of the present invention never only limits to the mentioned technical scheme of embodiment, and any technology of technical solution of the present invention enlightenment that is subjected to all falls into protection scope of the present invention.

Claims

1. the driving mechanism of a breaker operator counter, it comprises counter (1), it is characterized in that: it also comprises the first support (2), guide post (3), the second support (4), back-moving spring (5) and back shaft (6), described counter (1) is fixed on the first support (2) lateral surface, the swing arm of counter (1) contacts with the swinging end of guide post (3), have at least one installing hole (301) on the guide section of guide post (3), back shaft (6) is housed in the hole, back-moving spring (5) one ends are contained on the back shaft (6), the other end is connected on the guide section of guide post (3), guide post (3) can slide at back shaft (6), the restoring force of back-moving spring (5) can make guide post (3) return to original position, and back shaft (6) is fixed on the second support (4).

2. the driving mechanism of a kind of breaker operator counter as claimed in claim 1, it is characterized in that: described the first support (2) is fixed on the face shield (7) of circuit breaker.

3. the driving mechanism of a kind of breaker operator counter as claimed in claim 1, it is characterized in that: the non-swing arm end of the guide section of described guide post (3) is propped up by the projection on the motor cam (8).

4. the driving mechanism of a kind of breaker operator counter as claimed in claim 1, it is characterized in that: the installing hole (301) on the described guide post (3) is mounting hole.

5. the driving mechanism of a kind of breaker operator counter as claimed in claim 1, it is characterized in that: the non-swing arm end of the guide section of described guide post (3) also stretches out swing arm (302), and the cantilever (9) that swing arm (302) is stretched out in the rotating shaft props up.