CN217361388U

CN217361388U - Rail type holding spring operation switch mechanism

Info

Publication number: CN217361388U
Application number: CN202220831368.2U
Authority: CN
Inventors: 陈鹏
Original assignee: Beijing Iridium Beida Technology Co ltd
Current assignee: Beijing Iridium Beida Technology Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-09-02
Anticipated expiration: 2032-04-12

Abstract

The utility model discloses a rail mounted keeps spring-operated switch mechanism, including the drive connecting lever, the one end of drive connecting lever is provided with the sincere son connecting rod of combined floodgate, the one end swing joint of the sincere son connecting rod of combined floodgate has the joint to keep the round pin axle, the top of the sincere son connecting rod of combined floodgate is provided with the joint track, the joint keeps the round pin axle to inlay in the orbital inside of joint, the orbital one end of joint is provided with little extension spring, the orbital top fixedly connected with separating brake of joint is tripped, one side of little extension spring is provided with the combined floodgate semi-axis. This rail mounted keeps spring-operated switch mechanism links along with the drive connecting lever synchronization in specific track through the sincere son connecting rod of closing a floodgate, and synchronous the stopping to effectively closing a floodgate keeps, and the contrast test has been carried out, and the result discovery satisfies under the data of all switching characteristic requirements, the overshoot of mechanism has reduced, the power value is reduced, improve the stroke utilization ratio, has solved the switch stability low, the low problem of life-span.

Description

Rail type holding spring operation switch mechanism

Technical Field

The utility model relates to a circuit breaker switch technical field specifically is rail mounted keeps spring operating switch mechanism.

Background

Along with the continuous improvement of the demand of the power distribution network, people pay more and more attention to the power distribution safety, an operating mechanism in the power distribution network is particularly important as a switch, common operating mechanisms at the present stage are mainly divided into a manual operating mechanism, an electric operating mechanism, a spring operating mechanism and the like, the common operating mechanism in the circuit breaker is an elastic operating mechanism, the spring operating mechanism of the circuit breaker utilizes the energy stored by the stretching and the contraction of a spring to carry out closing and opening control, the functions of the spring operating mechanism can not only meet the electric operation, but also carry out manual opening and closing operation, but the common spring operating mechanism has some defects when in use, for example, the problems of the spring operating mechanism need to be reflected in the opening and closing processes, the mechanism has the conditions of poor opening and closing characteristics, low stroke stability and short service life caused by large stress of the switch, the mechanism can break down after long-time use, and can not meet the maintenance standard of the power distribution network, we have therefore developed an orbital retaining spring operated switch mechanism to solve the above existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rail mounted keeps spring-operated switch mechanism to the switch stability who proposes among the solution above-mentioned background art is low, problem that the life-span is low.

In order to achieve the above purpose, the utility model provides a following technical scheme: rail mounted keeps spring operating switch mechanism, including the drive connecting lever, the one end of drive connecting lever is provided with the sincere son connecting rod of combined floodgate, the one end swing joint of the sincere son connecting rod of combined floodgate has the joint to keep the round pin axle, the top of the sincere son connecting rod of combined floodgate is provided with the joint track, the joint is kept the round pin axle and is inlayed in the orbital inside of joint, the orbital one end of joint is provided with little extension spring, the orbital top fixedly connected with separating brake of joint is tripped, one side of little extension spring is provided with the combined floodgate semi-axis, the other end swing joint of drive connecting lever has the drive connecting lever connecting rod, drive connecting lever one side swing joint has the output shaft.

Preferably, the driving crank arm is connected with the closing pawl connecting rod through a pin shaft hole, and the other end of the closing pawl connecting rod is connected with the closing holding pin shaft and penetrates above the closing track.

Preferably, the spring hanging hole of the closing pawl connecting rod is connected with the bottom of the small tension spring, and the closing pawl connecting rod is connected with the fixed shaft through the small tension spring.

Preferably, the opening release is fixed above the closing and opening track, and the closing half shaft is contacted with the tip of the closing and opening track.

Preferably, the output shaft moves in a range of 86-90 degrees, so that the breaker switch is driven to realize the power-on and power-off functions of the breaker switch cabinet with the voltage level of 12KV/24 KV.

Preferably, the output shaft moves in a range of 78-85 degrees, so that the breaker switch is driven to realize the power-on and power-off functions of the breaker switch cabinet with the voltage level of 40.5 KV.

Compared with the prior art, the beneficial effects of the utility model are that: the rail type retaining spring operation switch mechanism not only realizes improvement of stroke stability, but also realizes improvement of switch service life;

(1) the energy storage cam moves to drive the driving connecting lever to swing, the driving connecting lever swings to drive the closing pawl connecting lever, the closing pawl connecting lever moves to drive the closing maintaining pin shaft to move in the closing track, and when the driving connecting lever rotates in place and starts to return, the closing maintaining pin shaft is clamped at the high point of the track so as to realize closing;

(2) the on-off track, the on-off maintaining pin shaft and the output shaft are arranged, when the opening half shaft is rotated, the on-off track drives the driving crank arm to rotate anticlockwise under the action of the opening spring through the driving crank arm connecting rod, when the on-off maintaining pin shaft is in tripping contact with the opening, the inclined plane moves leftwards in the track when the on-off maintaining pin shaft and the opening are in tripping contact, the driving crank arm rotates anticlockwise to complete opening action, the adjustment range of the switching speed is larger when the required energy storage closing spring force value is reduced, the stress of the switch can be reduced when the switch maintaining position is basically superposed with the overshoot position when the redundant stroke is greatly reduced, multiple proportional factors such as vibration and the like are reduced, so that the service lives of the whole switch and the switch cabinet are prolonged, and the switch with higher voltage level can be popularized and applied;

drawings

Fig. 1 is a front view cross-sectional structural diagram of the tripping device of the present invention;

fig. 2 is a schematic view of a front view section structure of the closing holding of the present invention;

fig. 3 is a schematic view of the front sectional structure of the brake separating device of the present invention;

fig. 4 is the utility model discloses a closing keeps rear view structure schematic diagram.

In the figure: 1. a small tension spring; 2. tripping the brake; 3. combining and separating the tracks; 4. closing and separating the holding pin shaft; 5. a closing pawl connecting rod; 6. driving the crank arm; 7. a drive crank arm connecting rod; 8. a switching-on half shaft; 9. and an output shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, the rail type retaining spring operating switch mechanism includes a driving crank arm 6, one end of the driving crank arm 6 is provided with a closing pawl connecting rod 5, one end of the closing pawl connecting rod 5 is movably connected with a closing and opening retaining pin shaft 4, a closing and opening rail 3 is arranged above the closing pawl connecting rod 5, the closing and opening retaining pin shaft 4 is embedded in the closing and opening rail 3, one end of the closing and opening rail 3 is provided with a small tension spring 1, a closing and opening release 2 is fixedly connected above the closing and opening rail 3, one side of the small tension spring 1 is provided with a closing half shaft 8, the other end of the driving crank arm 6 is movably connected with a driving crank arm connecting rod 7, and one side of the driving crank arm 6 is movably connected with an output shaft 9;

the driving crank arm 6 is connected with the closing pawl connecting rod 5 through a pin shaft hole, the other end of the closing pawl connecting rod 5 is connected with the closing and opening maintaining pin shaft 4 and penetrates above the closing and opening track 3, and the output shaft 9 moves in a range of 86-90 degrees, so that a breaker switch is driven to realize the power-on and power-off functions of a breaker switch cabinet with a voltage level of 12KV/24 KV;

specifically, as shown in fig. 1 and fig. 2, the energy storage cam moves to drive the driving connecting lever 6 to swing, the driving connecting lever 6 swings to drive the closing pawl connecting rod 5, the closing pawl connecting rod 5 moves to drive the closing maintaining pin shaft 4 to move in the closing track 3, and when the driving connecting lever 6 rotates in place and starts to return, the closing maintaining pin shaft 4 is clamped at the high point of the track, so that closing is realized.

Example 2: a spring hanging hole of a closing pawl connecting rod 5 is connected with the bottom of a small tension spring 1, the closing pawl connecting rod 5 is connected with a fixed shaft through the small tension spring 1, an opening release 2 is fixed above an opening and closing track 3, a closing half shaft 8 is in contact with the tip of the opening and closing track 3, and an output shaft 9 moves within the range of 78-85 degrees, so that a breaker switch is driven to realize the on-off electric function of a breaker switch cabinet with the voltage level of 40.5 KV;

specifically, as shown in fig. 3 and 4, when the opening half shaft is rotated, the opening and closing track 3 drives the driving connecting lever 6 to rotate anticlockwise under the action of the opening spring through the driving connecting lever connecting rod 7, when the opening and closing maintaining pin 4 is contacted with the opening tripping device 2, the inclined plane moves leftwards in the track, the driving connecting lever 6 rotates anticlockwise to complete the opening action, the adjustment range of the switching speed can be adjusted to be larger when the required energy storage closing spring force value is reduced, when the redundant stroke is greatly reduced, the switch holding position and the overshoot position are basically overlapped, the stress of the switch can be reduced, the multiple proportion factors such as vibration and the like are reduced, the service lives of the whole switch and the switch cabinet are prolonged, and the switch with higher voltage level can be popularized and applied.

The working principle is as follows: when the utility model is used, the energy storage cam moves to drive the driving crank arm 6 to swing, the driving crank arm 6 swings to drive the closing pawl connecting rod 5, the moving closing pawl connecting rod 5 drives the closing keeping pin shaft 4 to move in the closing track 3, when the driving crank arm 6 rotates in place and starts to return, the closing keeping pin shaft 4 is clamped at the high point of the track, thereby realizing closing, the closing pawl connecting rod 5 is synchronously linked in the specific track along with the driving crank arm 6 in the closing process, the synchronous stop is realized, thereby effectively keeping closing, and a contrast test is carried out, the result shows that under the data meeting the requirements of all switching characteristics, the overshoot of the mechanism is reduced, the force value is reduced, the stroke utilization rate is improved, when the opening half shaft is rotated, the closing track 3 drives the driving crank arm connecting rod 7 to drive the driving crank arm 6 to rotate under the action of the opening spring, when the closing keeping pin shaft 4 and the opening spring are in contact with each other, the delay inclined plane moves leftwards in the track, the driving crank arm 6 rotates anticlockwise to complete the opening action, the adjustment range of the switching speed is larger when the required energy storage closing spring force value is reduced, the stress of the switch can be reduced by basically coinciding the switch holding position and the overshoot position when the redundant stroke is greatly reduced, and multiple proportional factors such as vibration are reduced, so that the service lives of the whole switch and the switch cabinet are prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Rail mounted keeps spring-operated switch mechanism, including drive connecting lever (6), its characterized in that: the one end of drive connecting lever (6) is provided with the sincere son connecting rod of combined floodgate (5), the one end swing joint of the sincere son connecting rod of combined floodgate (5) has the branch of closing and keeps round pin axle (4), the top of the sincere son connecting rod of combined floodgate (5) is provided with the branch track of closing (3), the branch of closing keeps round pin axle (4) to inlay in the inside of dividing track of closing (3), the one end of dividing track of closing (3) is provided with little extension spring (1), the top fixedly connected with branch brake dropout (2) of dividing track of closing (3), one side of little extension spring (1) is provided with combined floodgate semi-axis (8), the other end swing joint of drive connecting lever (6) has drive connecting lever connecting rod (7), drive connecting lever (6) one side swing joint has output shaft (9).

2. The track-type retention spring operated switch mechanism of claim 1, wherein: the driving crank arm (6) is connected with the closing sincere son connecting rod (5) through a pin shaft hole, and the other end of the closing sincere son connecting rod (5) is connected with the closing and opening holding pin shaft (4) and penetrates above the closing and opening track (3).

3. The track-type retention spring operated switch mechanism of claim 1, wherein: the hanging spring hole of the closing sincere son connecting rod (5) is connected with the bottom of the small tension spring (1), and the closing sincere son connecting rod (5) is connected with the fixed shaft through the small tension spring (1).

4. The track-type retention spring operated switch mechanism of claim 1, wherein: the opening release (2) is fixed above the closing and opening track (3), and the closing half shaft (8) is contacted with the tip of the closing and opening track (3).

5. The track-type retention spring operated switch mechanism of claim 1, wherein: the output shaft (9) moves in the range of 86-90 degrees, so that the breaker switch is driven to realize the power-on and power-off functions of the breaker switch cabinet with the voltage level of 12KV/24 KV.

6. The track-type retention spring operated switch mechanism of claim 1, wherein: the output shaft (9) moves in the range of 78-85 degrees, so that the breaker switch is driven to realize the power-on and power-off functions of the breaker switch cabinet with the voltage level of 40.5 KV.