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Linkage worm gear and opening and closing drive

A technology of gear drive and worm gear, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of large electromagnetic interference of circuit boards, unable to meet the needs of power companies, complex structure, etc., to reduce electromagnetic interference, improve repeated positioning accuracy, structure Simplified compact effects

Active Publication Date: 2020-01-21
郑文秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional electric opening and closing miniature circuit breakers have the defects of complex structure, easy failure and incomplete functions, which cannot meet the needs of power companies. Key points and difficulties of technicians' work
[0004] In addition, in the traditional electric opening and closing small circuit breakers, the Hall sensor is commonly used to realize the position sensing, but the Hall sensor has the following disadvantages: the induction accuracy is low, and the electromagnetic interference to the circuit board is relatively large due to its magnetism

Method used

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  • Linkage worm gear and opening and closing drive
  • Linkage worm gear and opening and closing drive
  • Linkage worm gear and opening and closing drive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (Embodiment 1, interlocking worm gear)

[0041] This embodiment is a linkage worm gear, see Figure 1 to Figure 4 As shown, the interlocking worm gear is one piece.

[0042] The interlocking worm gear 5 is sequentially provided with a concentric toggle cam portion 54, a worm wheel follower portion 51, a gear drive portion 52 and a cam linkage portion 53 from one end to the other end along the direction of its central axis of rotation, and the entire outer peripheral wall of the worm wheel follower portion There are worm gear teeth 511 adapted to the driving worm gear; the cam linkage part is provided with a reset groove 531, a concave part 532, a transition part 533 and a convex part 534 in sequence along its outer circumference; Drive teeth 521 .

[0043] In this embodiment, the driving teeth 521 are arranged on the wall where the outer peripheral wall of the gear driving part 52 and the outer peripheral wall of the convex part 534 in the cam linkage part adjoin; in ...

Embodiment 2

[0047] (Embodiment 2, interlocking worm gear)

[0048] This embodiment is basically the same as Embodiment 1, see Figure 5 to Figure 7 As shown, the interlocking worm gear is one piece.

[0049] The interlocking worm gear in this embodiment is provided with a concentric toggle cam part 54, a worm wheel follower part 51, a cam linkage part 53 and a gear driving part 52 sequentially from one end to the other end along the direction of the central axis of rotation, which is essentially reversed. The positions of the gear driving part 52 and the cam linkage part 53 in Embodiment 1, this structure is also completely feasible.

Embodiment 3

[0050] (Embodiment 3, interlocking worm gear)

[0051] This embodiment is basically the same as Embodiment 1, see Figure 8 to Figure 9 As shown, the interlocking worm gear is one piece.

[0052] The interlocking worm wheel in this embodiment is provided with a concentric adjusting wheel part 55, a worm wheel follower part 51, a cam linkage part 53 and a gear driving part 52 sequentially from one end to the other end along the direction of its central axis of rotation. There is a toggle cam 101; the outer peripheral wall of the adjustment wheel portion is provided with an engaging groove 551; the inner peripheral wall of the central hole of the toggle cam 101 is provided with an engaging tooth 1014 adapted to the engaging groove, and the toggle cam passes through the engaging teeth and With the cooperation of the meshing groove, it is driven by the driven part of the worm wheel.

[0053] The toggle cam 101 in this embodiment is also provided with a toggle guide surface 1011, a...

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PUM

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Abstract

The present invention discloses a linkage worm gear and a switch-on-off driving device. The first structure of the linkage worm gear comprises a worm gear driven portion, a gear driving portion, a camlinkage portion and an activation cam portion configured to activate and trigger external stroke microswitches or a leaf switch. The second structure of the linkage worm gear comprises a linkage cam,a worm gear, a driving gear and an activation cam configured to activate and trigger the external stroke microswitches or the leaf switch. The switch-on-off driving device comprises a housing, a driving motor, a linkage worm gear, a linkage gear, an output main shaft, a releasing linkage member and a circuit board. The driving motor drives rotation of the linkage worm gear; the circuit board is provided with a through hole and two leaf switches or a stroke microswitch; and the linkage worm gear comprises a worn gear driven portion, a gear driving portion, a cam linkage portion and an activation cam portion configured to activate and trigger the external stroke microswitches or the leaf switch. The linkage worm gear and the switch-on-off driving device can realize electric switch on-off and can effectively reduce electromagnetic interference.

Description

technical field [0001] The technical field of the miniature circuit breaker of the present invention, in particular, relates to a driving device for linkage between a worm gear and an opening and closing switch. Background technique [0002] According to the needs of my country's power supply network intelligence, the State Grid Corporation of China requires the power supply network intelligence. Therefore, it is necessary for the terminal actuator of the power supply network - the miniature circuit breaker (or miniature circuit breaker) to execute the upper-end signal and have the functions of tripping and closing. Therefore, the current development trend of miniature circuit breakers is that in addition to the traditional manual opening and closing and over-current and overload automatic tripping functions, it also needs to have an electric opening and closing function (commonly known as automatic opening and closing function) to achieve remote control; especially It is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10
Inventor 郑文秀
Owner 郑文秀