CN210956479U

CN210956479U - Driving mechanism for isolating switch

Info

Publication number: CN210956479U
Application number: CN201921125110.5U
Authority: CN
Inventors: 章琼渊; 唐凯; 胡理取
Original assignee: Zhejiang Guanfengda Electric Power Equipment Co ltd
Current assignee: Zhejiang Guanfengda Electric Power Equipment Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-07-07
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to an actuating mechanism for isolator, including motor, fixed plate and drive shaft, the motor is connected and the control drive shaft rotates, the fixed plate is worn to establish by the drive shaft, rotates on the fixed plate and is connected with the support, and support one side is fixed with the arc rack, and the opposite side articulates there is the connecting rod, and the drive shaft has the arc rack through gear engagement. Compared with a straight rack, the arc-shaped rack structure of the isolating switch not only reduces the overall occupied space, but also enhances the structural stability because the meshing length of the arc-shaped tooth surface and the gear is longer than that of the straight rack and the gear; through the connected mode between transition gear and the gear, the space that motor drive shaft slew velocity improved is given to the arc groove promptly, and the power of driving the arc rack is bigger relatively like this.

Description

Driving mechanism for isolating switch

Technical Field

The utility model belongs to the technical field of the isolator technique and specifically relates to an actuating mechanism for isolator.

Background

The isolating switch is important equipment for realizing separation and switching of a line power supply and ensuring power failure maintenance safety. Chinese patent No. 201910065877.1, application date 2019.05.28, patent name a isolator with dropout prevention means, disclosed actuating mechanism 7, this actuating mechanism includes the casing and is located fixed plate, gear, motor, ratch etc. of casing, owing to will satisfy the isolator of off-state so the ratch needs longer setting, at least 40cm, this structure setting makes whole occupation space big, and structure and job stabilization nature are all not good enough.

SUMMERY OF THE UTILITY MODEL

To the not enough in the background art, the utility model provides a driving mechanism for isolator to overcome above defect.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an actuating mechanism for isolator, includes motor, fixed plate and drive shaft, and the motor is connected and control the drive shaft and is rotated, the fixed plate is worn to establish by the drive shaft, rotates on the fixed plate and is connected with the support, and support one side is fixed with the arc rack, and the opposite side articulates there is the connecting rod, and the drive shaft has the arc rack through gear engagement, is equipped with on the arc rack with gear engagement's tooth A.

The drive shaft is equipped with the external tooth, and transition gear and gear have been put to the cover in the drive shaft, and transition gear's hole is equipped with the internal tooth, and the internal tooth meshes with the external tooth of drive shaft mutually, and transition gear is equipped with the arc wall on being close to one side of gear, the gear center is equipped with the unthreaded hole, and one side that the gear is close to transition gear is equipped with the projection, and the tip of projection is arranged in the arc wall, and can follow its relative slip.

And the fixed plate is also provided with a limiting rod which is positioned in a space formed by the arc-shaped rack and the bracket.

The motor is fixed on the fixing plate.

The outer side of the fixed plate is provided with a cover body.

The teeth are positioned on the inner side of the arc-shaped rack.

The tooth is located the outside of arc rack.

Due to the adoption of the technical scheme, the problems of longer occupied space and poor stability of the existing drive mechanism of the isolating switch are effectively solved, the drive mechanism for the isolating switch is reasonable and simple in structural design, and compared with a straight rack, the drive mechanism for the isolating switch is provided with an arc-shaped rack structure, the overall occupied space is reduced, and meanwhile, the meshing length of an arc-shaped tooth surface and a gear is larger than that of a straight rack and the gear, so that the structural stability is enhanced; through connected mode between transition gear and the gear, the space that the motor drove drive shaft slew velocity to promote is given to the arc wall promptly, and the power of drive arc rack is bigger relatively like this, ensures once only can accomplish opening and close of isolator, avoids opening and close the failure because of starting power is not enough to lead to the switch to open and close.

Drawings

Fig. 1 is a schematic structural view of embodiment 1.

Fig. 2 is a schematic view of the present invention with a cover 9.

Fig. 3 is a schematic view of the closing state of the disconnecting link 6 in embodiment 1.

Fig. 4 is an opened schematic view of the knife gate 6 of the embodiment 1.

Fig. 5 is a schematic view of the split structure of the transition gear 5 and the gear 3.

Fig. 6 is a schematic structural diagram of the second embodiment.

In the figure 1, a motor; 11. a drive shaft; 111. external teeth; 2. a fixing plate; 3. a gear; 31. a light hole; 32. a convex column; 4. a support; 41. an arc-shaped rack; 5. a transition gear; 51. internal teeth; 52. an arc-shaped slot; 6. a disconnecting link; 7. a limiting rod; 8. a connecting rod; 9. a cover body; 10 pivot point.

Detailed Description

Embodiment 1, referring to fig. 1 to 6, a driving mechanism for a disconnecting switch includes a motor 1, a fixed plate 2, and a driving shaft 11, wherein the motor 1 is fixed to the fixed plate 2. As shown in fig. 1-2, the fixing plate 2 and the cover 9 are both fixed on the base 01, and the base 01 is used for installation and fixation. Motor 1 connects and control drive shaft 11 and rotates, and motor 1 fixes on fixed plate 2, fixed plate 2 is worn to establish by drive shaft 11, rotates on fixed plate 2 and is connected with support 4, and stabilizer blade 4 can revolute rotation point 10 and rotate, and support 4 one side is fixed with arc rack 41, and the opposite side articulates there is connecting rod 8, and drive shaft 11 has arc rack 41 through the meshing of gear 3, is equipped with the tooth A with the meshing of gear 3 on arc rack 41, tooth A is located the inboard of arc rack 41.

The connecting rod 8 passes through the base 01 and is connected with the knife switch 6. The connecting rod 8 moves up and down to drive the disconnecting link 6 to swing, so that the disconnecting switch is opened and closed.

Drive shaft 11 is equipped with external tooth 111, has set transition gear 5 and gear 3 on the drive shaft 11, and the hole of transition gear 5 is equipped with internal tooth 51, and internal tooth 51 meshes with the external tooth 111 of drive shaft 11 mutually, is equipped with arc groove 52 on the one side that transition gear 5 is close to gear 3, the gear 3 center is equipped with unthreaded hole 31, and one side that gear 3 is close to transition gear 5 is equipped with projection 32, and the tip of projection 32 is arranged in arc groove 52, and can follow its relative slip. As shown in fig. 5, when the output shaft 11 rotates, firstly the transition gear 5 engaged with the teeth rotates together with the output shaft, and then the transition gear 5 in a substantially constant rotation state drives the gear 3 to rotate together. The arc-shaped slot 52 gives the output shaft 11 a stroke space for speed increase, and the transition gear 5 rotating together with the output shaft 11 is already in a substantially speed-stationary state when the gear 3 meshing with the arc-shaped rack 41 is carried along. So that the arc-shaped rack 41 drives the connecting rod 8 with larger force.

The fixed plate 2 is further provided with a limiting rod 7, and the limiting rod 7 is located in a space formed by the arc-shaped rack 41 and the bracket 4. The limiting rod 7 is used for limiting when the driving mechanism is opened and closed, specifically, as shown in fig. 4, the arc-shaped rack 41 and the support 4 are fixedly connected with each other to form a whole, the whole drives the arc-shaped rack 41 to rotate in a meshing manner with the gear 3 through the output shaft 11 at the motor 1, namely, the whole rotates around the rotating point 10, the connecting rod 8 is driven to move downwards, when the gear 3 does not reach the lowest end of the arc-shaped rack 41, the limiting rod 7 blocks the support 4, and the gear 3 is prevented from touching the support and damaging the insection of the support.

A cover body 9 is arranged outside the fixed plate 2.

The utility model effectively improves the problems of longer occupied space and poor stability of the existing drive mechanism of the isolating switch, the drive mechanism for the isolating switch has reasonable and simple structural design, the arrangement of the structure of the arc-shaped rack 41 not only reduces the whole occupied space compared with the straight rack, but also enhances the structural stability because the meshing length of the arc-shaped tooth surface and the gear 3 is longer than that of the straight rack and the gear 3; through the connected mode between transition gear 5 and the gear 3, arc groove 52 gives the motor 1 and drives the space that drive shaft 11 slew velocity promoted promptly, and the power of driving arc rack 41 is bigger relatively like this, ensures once only can accomplish opening and close of isolator, avoids opening and close the failure because of starting the power is not enough to lead to switch 6.

In embodiment 2, the teeth a are located on the outer side of the arc-shaped rack 41.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a actuating mechanism for isolator, includes motor (1), fixed plate (2) and drive shaft (11), and motor (1) is connected and control drive shaft (11) are rotated, fixed plate (2), its characterized in that are worn to establish in drive shaft (11): the fixing plate (2) is rotatably connected with a support (4), one side of the support (4) is fixed with an arc-shaped rack (41), the other side of the support (4) is hinged with a connecting rod (8), a driving shaft (11) is meshed with the arc-shaped rack (41) through a gear (3), and a tooth A meshed with the gear (3) is arranged on the arc-shaped rack (41).

2. The drive mechanism for a disconnector according to claim 1, characterized in that: be equipped with external tooth (111) on drive shaft (11), transition gear (5) and gear (3) have been put to the cover on drive shaft (11), and the hole of transition gear (5) is equipped with internal tooth (51), and internal tooth (51) mesh with external tooth (111) of drive shaft (11), and transition gear (5) are equipped with arc wall (52) on the one side of being close to gear (3), gear (3) center is equipped with unthreaded hole (31), and one side that gear (3) are close to transition gear (5) is equipped with projection (32), and arc wall (52) are arranged in to the tip of projection (32), and can follow its relative slip.

3. The drive mechanism for a disconnector according to claim 1, characterized in that: the fixed plate (2) is further provided with a limiting rod (7), and the limiting rod (7) is located in a space formed by the arc-shaped rack (41) and the bracket (4).

4. The drive mechanism for a disconnector according to claim 1, characterized in that: the motor (1) is fixed on the fixing plate (2).

5. The drive mechanism for a disconnector according to claim 1, characterized in that: a cover body (9) is arranged on the outer side of the fixed plate (2).

6. The drive mechanism for a disconnector according to claim 1, characterized in that: the teeth A are positioned on the inner side of the arc-shaped rack (41).

7. The drive mechanism for a disconnector according to claim 1, characterized in that: the teeth A are positioned on the outer side of the arc-shaped rack (41).