CN218182114U

CN218182114U - Isolation grounding electric operating mechanism

Info

Publication number: CN218182114U
Application number: CN202220595651.XU
Authority: CN
Inventors: 吴臻栋; 吴建春; 沈刚
Original assignee: Jiangsu Yunfeng Technology Co ltd
Current assignee: Jiangsu Yunfeng Technology Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-12-30
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to an isolated grounding electric operating mechanism, which comprises an operating shaft, an isolated transmission shaft and a grounding transmission shaft which are parallel to each other and are meshed through a half-tooth structure, wherein a driving gear is movably sleeved on the operating shaft, and a driving wheel is arranged on the operating shaft; a driving pin is arranged on one side face, facing the driving wheel, of the driving gear, the driving gear driven by the motor assembly is meshed with the driving gear, a sliding block is installed on the wheel surface of the driving wheel through an elastic piece, a limiting pin is attached to the wheel surface of the driving wheel, and the distance between the driving pin and the wheel surface of the driving wheel is smaller than the height of the T-shaped sliding block exposed out of the wheel surface of the driving wheel. Adopt the utility model discloses afterwards, can realize long-range electric operation.

Description

Isolation grounding electric operating mechanism

Technical Field

The utility model relates to an electric operating mechanism especially relates to a mechanism that isolator, earthing switch carry out mechanical type sequential operation to integral type circuit breaker based on electric mode, belongs to power equipment technical field.

Background

At present, an isolation disconnecting link and a grounding disconnecting link on a circuit breaker need to have an interlocking function in an operation process, namely the grounding disconnecting link needs to be ensured to be opened when the isolation disconnecting link is closed, and otherwise the isolation disconnecting link is necessarily in an open state when the grounding disconnecting link is closed. Therefore, the company developed and reported in 2020 "an isolated grounding operation mechanism for circuit breaker" in chinese patent CN202021685496.8, which can conveniently realize interlocking from a mechanical hardware structure and has higher safety performance. However, in practical applications, customers generally feedback the requirement for remote control, and for this reason, the company develops a mechanism based on a motor to operate the mechanism on the basis of the above patent, so that the mechanism can realize remote operation.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned not enough, provide an isolation ground connection electric operating mechanism that can realize remote operation.

The purpose of the utility model is realized like this:

an isolated grounding electric operating mechanism comprises an operating shaft, an isolated transmission shaft and a grounding transmission shaft which are parallel to each other, wherein operating transmission teeth with a fan-shaped structure are arranged on the shaft wall of the operating shaft and are respectively meshed with isolated transmission teeth with a fan-shaped structure arranged on the shaft wall of the isolated transmission shaft and grounding transmission teeth with a fan-shaped structure arranged on the shaft wall of the grounding transmission shaft; a driving pin is arranged on one side face, facing the driving wheel, of the driving gear, the driving gear driven by the motor assembly is meshed with the driving gear, a sliding block is installed on the wheel surface of the driving wheel through an elastic piece, a limiting pin is attached to the wheel surface of the driving wheel, and the distance between the driving pin and the wheel surface of the driving wheel is smaller than the height of the T-shaped sliding block exposed out of the wheel surface of the driving wheel.

Preferably, the sum of the lengths of the driving pin and the limiting pin is not larger than the wheel surface width of the driving wheel.

Preferably, a T-shaped groove is radially formed in the wheel surface of the driving wheel, the T-shaped sliding block is arranged in the T-shaped groove, and a spring is arranged between the bottom of the T-shaped sliding block and the bottom of the T-shaped groove.

Preferably, two groups of matching structures formed by the T-shaped grooves and the T-shaped sliding blocks are arranged, two limiting pins correspondingly matched with the T-shaped grooves are arranged, a slope guide surface is arranged on one side of the top surface of each T-shaped sliding block, and a right-angle corner structure is arranged on the other side of the top surface of each T-shaped sliding block.

Preferably, an induction rod is arranged on one side surface of the driving gear, which is far away from the transmission wheel, and an auxiliary switch which is correspondingly matched with the induction rod is fixed on the rack or the panel.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model is driven and connected by a motor driving mode on the basis of realizing linkage relation based on three half-tooth structures, thereby realizing remote operation function; and a clutch structure is formed by the driving gear and the transmission wheel, so that linkage isolation in the operation process is ensured, a manual operation mode is kept, and the operation is more convenient and reliable.

Drawings

Fig. 1 is a schematic structural view of the isolation and grounding electric operating mechanism of the present invention.

Fig. 2 is an exploded view of the isolated grounded electric operating mechanism of the present invention.

Fig. 3 is the utility model relates to an keep apart ground connection electric operating mechanism.

Fig. 4 is the utility model relates to an keep apart the meshing structure sketch map of operation driving gear, isolation driving gear and ground connection driving gear among the ground connection electric operating mechanism.

Fig. 5 to 12 are schematic diagrams illustrating the state coordination of the driving gear and the driving wheel in each flow path according to the present invention.

Fig. 13-20 are schematic views of the operating gear, the isolating gear and the grounding gear of fig. 5-12, respectively.

Wherein:

the device comprises an operating shaft 1, an isolation transmission shaft 2, a grounding transmission shaft 3, a driving gear 4, a transmission wheel 5, a motor assembly 6, a driving gear 7, a limit pin 8 and an auxiliary switch 9;

operating the transmission gear 1.1;

the isolation transmission gear 2.1;

a grounding transmission gear 3.1;

a driving pin 4.1 and an induction rod 4.2;

t-shaped groove 5.1 and T-shaped slide block 5.2.

Detailed Description

Referring to fig. 1-4, the utility model relates to an keep apart ground connection electric operating mechanism includes operating axis 1, isolation transmission shaft 2 and ground connection transmission shaft 3 that are parallel to each other, be provided with fan-shaped structure's operation driving gear 1.1 on the axle wall of operating axis 1, keep apart and be provided with fan-shaped structure's isolation driving gear 2.1 (half tooth structure promptly) on the axle wall of transmission shaft 2, be provided with fan-shaped structure's ground connection driving gear 3.1 on the axle wall of ground connection transmission shaft 3, operation driving gear 1.1 respectively with keep apart driving gear 2.1 and ground connection driving gear 3.1 intermeshing.

The operating shaft 1 is movably sleeved with a driving gear 4 (namely, the center of the driving gear 4 is provided with a sliding sleeve which is sleeved on the operating shaft 1, and the sliding sleeve is rotatably matched with the operating shaft 1), and a driving gear 7 driven by a motor assembly 6 is meshed with the driving gear 4.

The operating shaft 1 is provided with a driving wheel 5, and the operating shaft 1 is connected with the driving wheel 5 through a flat key, so that the operating shaft 1 and the driving wheel 5 synchronously rotate; and the driving gear 4 is jointed with the driving wheel 5 to form a clutch structure.

Specifically speaking: a T-shaped groove 5.1 is radially arranged on the wheel surface of the driving wheel 5, a T-shaped sliding block 5.2 is arranged in the T-shaped groove 5.1, and a spring is arranged between the bottom of the T-shaped sliding block 5.2 and the bottom of the T-shaped groove 5.1; meanwhile, a driving pin 4.1 is arranged on one side surface of the driving gear 4 facing the driving wheel 5, and the distance between the driving pin 4.1 and the driving wheel 5 is smaller than the height of the T-shaped sliding block 5.2 exposed out of the wheel surface of the driving wheel 5, so that when the spring pushes the T-shaped sliding block 5.2 to expose out of the driving wheel 5, the driving pin 4.1 can push the T-shaped sliding block 5.2 and further push the driving wheel 5 to rotate; meanwhile, a limiting pin 8 fixed on the frame or the panel is attached to the wheel surface of the driving wheel 5, so that when the T-shaped sliding block 5.2 rolls to the limiting pin 8 along with the driving wheel 5, the T-shaped sliding block 5.2 is pressed downwards by the limiting pin 8 to sink into the T-shaped groove 5.1; at the moment, the sum of the lengths of the driving pin 4.1 and the limiting pin 8 is not larger than the wheel surface width of the driving wheel 5, so that the driving pin 4.1 and the limiting pin 8 do not interfere with each other in the process that the driving pin 4.1 rotates along with the driving gear 4; when the T-shaped sliding block 5.2 is pressed down and sunk into the T-shaped groove 5.1 by the limiting pin 8, the driving pin 4.1 and the T-shaped sliding block 5.2 are unlocked and are not in contact, so that the clutch effect is realized;

furthermore, drive gear 4 deviates from and installs induction rod 4.2 on the side of drive wheel 5, and is fixed with the auxiliary switch 9 that matches with it on frame or the panel, and through induction rod 4.2 and auxiliary switch 9's cooperation, knows that operating condition is on the throne to in time open and stop motor assembly 6.

Furthermore, two groups of matching structures formed by the T-shaped grooves 5.1 and the T-shaped sliding blocks 5.2 are arranged, two limiting pins 8 correspondingly matched with the T-shaped grooves are arranged, a slope guide surface is arranged on one side of the top surface of each T-shaped sliding block 5.2 and used for guiding each limiting pin 8 to be pressed down, and a right-angle corner structure is arranged on the other side of the top surface of each T-shaped sliding block, so that the driving effect of the driving pin 4.1 on the limiting pins is guaranteed.

In the initial state, the operating toothing 1.1, the isolating toothing 2.1 and the grounding toothing 3.1 form an axisymmetric pattern (as shown in fig. 8) with the cross section of the operating shaft 1.

Further, a central angle corresponding to the operating gear 1.1 is α, a central angle corresponding to the isolating gear 2.1 is β, an angle corresponding to the grounding gear 3.1 is γ, and α = β = γ is larger than 120 ° and smaller than or equal to 144 °; the mode is the best mode, and the three shafts are completely the same in processing, so that the manufacturing cost is low and the assembly is convenient.

Further, the central angle corresponding to the operating driving tooth 1.1 is alpha, the central angle corresponding to the isolating driving tooth 2.1 is beta, the angle corresponding to the grounding driving tooth 3.1 is gamma, alpha is more than 120 degrees and less than or equal to 144 degrees, and beta is more than or equal to 90 degrees and less than or equal to 360 degrees; the isolating transmission shaft 2 and the grounding transmission shaft 3 need to be separately machined from the operating shaft 1, but can still be realized based on the concept of the patent.

The operation of the present embodiment will be described with reference to fig. 5 to 12 and corresponding fig. 13 to 20 (the following clockwise and counterclockwise descriptions are illustrated in the perspective of fig. 13 to 20, and the perspective of fig. 5 to 12 and the perspective of fig. 13 to 20 can be understood as the right-side perspective in fig. 1 to 2):

the position shown in fig. 5 is a closing state of the grounding switch and an opening state of the isolating switch, and after a 'shunting grounding isolating button' is pressed, the motor assembly 6 starts to drive the driving gear 4 to rotate clockwise; when the driving gear 4 rotates to the position shown in fig. 6, the driving pin 4.1 on the driving gear 4 can contact with the T-shaped slider 5.2 to drive the T-shaped slider 5.2 to drag the driving wheel 5 and the operating shaft 1 to rotate clockwise, i.e. the driving wheel 5 and the operating shaft 1 connected with the driving wheel through the gear transmission structure of the driving gear 7 and the driving gear 4 are driven to operate, in the rotating process of the operating shaft 1, the grounding transmission shaft 3 is driven to rotate anticlockwise through the cooperation of the operating transmission teeth 1.1 and the gears of the grounding transmission teeth 3.1, and the grounding transmission shaft 3 can drive the reset spring to compress when rotating; when the grounding switch is rotated to the position shown in fig. 7, the return spring of the grounding transmission shaft 3 directly releases energy after passing through the middle, so that the opening of the grounding switch is changed to the state shown in fig. 8; at the moment, the motor assembly 6 continuously drives the driving gear 4 to rotate clockwise, and when the driving gear 4 rotates to the position shown in the figure 9, the driving pin 4.1 of the driving gear 4 contacts with the T-shaped sliding block 5.2 and then drives the driving wheel 5 and the operating shaft 1 to rotate clockwise again, so that the isolation transmission shaft 2 is driven to rotate anticlockwise through the gear structure, and the isolation transmission shaft 2 drives the reset spring to compress when rotating; when the disconnecting switch is turned to the position shown in the figure 10, the reset spring of the disconnecting transmission shaft 2 directly releases energy after passing through the middle, so that the disconnecting switch is switched on and is changed to the state shown in the figure 11; at this time, the motor assembly 6 will continue to drive the driving gear 4 to rotate clockwise until the sensing rod 4.2 on the driving gear 4 triggers the auxiliary switch 9 to switch, and then the motor assembly 6 stops rotating as shown in fig. 12. And at this moment, T-shaped slider 5.2 is suppressed by spacer pin 8 and sinks, therefore break away from the transmission relation between drive gear 4 and the drive wheel 5, thus can carry out manual operation operating shaft 1, can conveniently debug or carry out manual switch under the condition that some power supply goes wrong.

In view of the above, any modifications or improvements that may occur to those skilled in the art based on the foregoing concepts are intended to be within the scope of this patent.

Claims

1. The utility model provides an keep apart ground connection electric operating mechanism includes operating axis (1) that is parallel to each other, keeps apart transmission shaft (2) and ground connection transmission shaft (3), be provided with on the axle wall of operating axis (1) the operation driving gear (1.1) of fan-shaped structure respectively with keep apart on the axle wall of transmission shaft (2) the isolation driving gear (2.1) that are provided with fan-shaped structure, ground connection driving gear (3.1) mesh mutually on the axle wall of ground connection transmission shaft (3), its characterized in that:

a driving gear (4) is movably sleeved on the operating shaft (1), and a driving wheel (5) is installed on the operating shaft (1); a driving pin (4.1) is arranged on one side face, facing the driving wheel (5), of the driving gear (4), a driving gear (7) driven by the motor assembly (6) is meshed with the driving gear (4), a sliding block is installed on the wheel surface of the driving wheel (5) through an elastic piece, a limiting pin (8) is attached to the wheel surface of the driving wheel (5), and the distance between the driving pin (4.1) and the wheel surface of the driving wheel (5) is smaller than the height of the T-shaped sliding block (5.2) exposed out of the wheel surface of the driving wheel (5).

2. The isolated ground electric operating mechanism of claim 1, further comprising: the sum of the lengths of the driving pin (4.1) and the limiting pin (8) is not more than the width of the wheel surface of the driving wheel (5).

3. An isolated ground electric operating mechanism according to claim 1 or 2, characterized in that: a T-shaped groove (5.1) is radially arranged on the wheel surface of the driving wheel (5), a T-shaped sliding block (5.2) is arranged in the T-shaped groove (5.1), and a spring is arranged between the bottom of the T-shaped sliding block (5.2) and the bottom of the T-shaped groove (5.1).

4. The isolated ground electric operating mechanism of claim 3, wherein: the T-shaped groove (5.1) and the T-shaped sliding block (5.2) form a matching structure, two groups of matching structures are arranged, the two groups of matching structures correspond to the two groups of matching structures, a slope guide surface is arranged on one side of the top surface of the T-shaped sliding block (5.2), and a right-angle corner structure is arranged on the other side of the top surface of the T-shaped sliding block.

5. The isolated-grounded electric operating mechanism of claim 1, wherein: an induction rod (4.2) is arranged on one side surface of the driving gear (4) departing from the driving wheel (5), and an auxiliary switch (9) which is correspondingly matched with the driving gear is fixed on the frame or the panel.