CN220290652U - Overshoot-preventing electric operating mechanism - Google Patents
Overshoot-preventing electric operating mechanism Download PDFInfo
- Publication number
- CN220290652U CN220290652U CN202321942332.2U CN202321942332U CN220290652U CN 220290652 U CN220290652 U CN 220290652U CN 202321942332 U CN202321942332 U CN 202321942332U CN 220290652 U CN220290652 U CN 220290652U
- Authority
- CN
- China
- Prior art keywords
- overshoot
- output shaft
- plane
- reverse
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
The utility model relates to an overshoot-preventing electric operating mechanism, which comprises a gear transmission mechanism and an output shaft, wherein the lower end of the output shaft is connected with a disconnecting switch, and the upper end of the output shaft is connected with an output gear of the gear transmission mechanism; the device is characterized in that a forward overshoot clearance and a reverse overshoot clearance are arranged between the output gear and the output shaft. Through setting up forward clearance of overshooting and the clearance of overshooting in the reverse between output shaft and output gear, when isolator got into the combined floodgate and overshoots or break-gate overshoots, forward clearance of overshooting and reverse clearance of overshooting can in time avoid the output shaft to gear drive in the effective protection operating device, extension operating device's life.
Description
Technical Field
The utility model relates to the field of operating mechanisms, in particular to an overshoot-preventing electric operating mechanism.
Background
An output shaft of the electric operating mechanism is connected with the isolating switch, and the isolating switch is controlled to perform switching-off operation by controlling switching-off and switching-on rotation of the output shaft.
The isolating switch is internally provided with an energy storage spring, the isolating switch is switched from switching on to switching off in the working process, the energy storage spring is firstly compressed for energy storage, when the energy storage spring passes through three points and one line, the energy storage spring starts to release energy, at the moment, the isolating switch can drive an output shaft (connected with the output shaft of the operating mechanism) to rotate rapidly, the process is generally called overshoot, the overshoot stroke of the isolating switch can drive the output shaft to move rapidly, the overshoot force is transmitted to a gear transmission mechanism in the electric operation to cause the gap between gears to be larger, and likewise, when the isolating switch is switched from switching on to switching off, the isolating switch is also subjected to overshoot once, the gear gap is larger and larger under the repeated impact of the overshoot force, the action of the electric operating mechanism is slower due to the increase of the transmission gap between gears, and the service life of the electric operating mechanism is shortened; secondly, if the opening and closing time of the isolating switch is long, arc is easy to generate, and the problems of melting, explosion and the like of a switch contact are caused.
In summary, the existing operating mechanism has the following problems:
after the isolating switch spring passes through dead points (three points are one line), the isolating switch spring force is large and can drive the gear sets to rotate together, and the power transmission between the gears is large, so that the switch action is slow, the service life of the electric operating mechanism is reduced, and the problem of melting and explosion of the isolating switch contact is caused.
Disclosure of Invention
The utility model aims to solve the technical problems that: the problem of the electric operating mechanism's that the current electric operating mechanism makes the switch action slow under the overshoot force's that the isolator was transmitted is born for a long time to the not enough of prior art is overcome, thereby the life of reduction is solved to the electric operating mechanism.
The technical scheme adopted for solving the technical problems is as follows:
provided is an overshoot-preventing electric operating mechanism, comprising
The lower end of the output shaft is connected with the isolating switch, and the upper end of the output shaft is connected with an output gear of the gear transmission mechanism;
a forward overshoot gap and a reverse overshoot gap are arranged between the output gear and the output shaft;
the output gear drives the isolating switch to conduct forward closing rotation through the output shaft, and when the isolating switch enters forward overshoot travel, the forward overshoot gap is suitable for accommodating the forward overshoot travel transmitted to the output shaft by the isolating switch;
the output shaft drives the isolating switch to conduct reverse opening rotation through the output shaft, and when the isolating switch enters a reverse overshoot stroke, the reverse overshoot clearance is suitable for accommodating the reverse overshoot stroke transmitted to the output shaft by the isolating switch.
Further, at least one outer plane is arranged on the output shaft;
at least one first inner key plane and at least one second inner key plane are formed in the shaft hole of the output gear;
when the output gear drives the output shaft to perform forward closing rotation, the first inner key plane is abutted against the outer plane, and at the moment, a forward overshoot gap is formed between the second inner key plane and the outer plane;
when the output gear drives the output shaft to rotate in a reverse opening mode, the second inner key plane is abutted to the outer plane, and at the moment, a reverse overshoot gap is formed between the first inner key plane and the outer plane.
Further, two outer planes are arranged on the output shaft, and the two outer planes are symmetrically arranged on the output shaft;
two first inner key planes and two second inner key planes are formed in the shaft hole of the output gear.
Further, at least one first external key plane and at least one second external key plane are arranged on the output shaft;
at least one inner key plane is formed in the shaft hole of the output gear;
when the output gear drives the output shaft to perform forward closing rotation, the inner plane is abutted with the first outer key plane, and at the moment, a forward overshoot gap is formed between the second outer key plane and the inner plane;
when the output gear drives the output shaft to rotate in a reverse opening mode, the inner plane is in butt joint with the second outer key plane, and at the moment, a reverse overshoot gap is formed between the first inner key plane and the outer key plane.
Further, two inner planes are arranged on the output gear, and two outer planes are symmetrically arranged on the output shaft;
and the output shaft is provided with two first external key planes and two second external key planes.
The beneficial effects of the utility model are as follows:
according to the overshoot-preventing electric operating mechanism, the forward overshoot clearance and the reverse overshoot clearance are arranged between the output shaft and the output gear, and when the isolating switch enters the closing overshoot or the opening overshoot, the forward overshoot clearance and the reverse overshoot clearance can timely avoid the output shaft to strike the output gear, so that the gear transmission mechanism in the operating mechanism is effectively protected, and the service life of the operating mechanism is prolonged.
Meanwhile, the isolation switch can be used for improving the switching time of the isolation switch after the resistance caused by the internal gear of the electric operating mechanism is removed due to the overshoot clearance, so that the safety performance of the switch is improved.
Drawings
The utility model is further described below with reference to the accompanying drawings.
Fig. 1 is a perspective view of an overshoot-preventing electric operating mechanism in the present embodiment;
fig. 2 is a structural diagram of an output gear and an output shaft when the electric operating mechanism performs forward closing rotation in the first embodiment;
FIG. 3 is a diagram showing the structure between the output gear and the output shaft when the electric operating mechanism performs reverse brake-separating rotation in the first embodiment;
FIG. 4 is a schematic diagram of an output gear in accordance with the first embodiment;
FIG. 5 is a schematic view of an output shaft in accordance with the first embodiment;
fig. 6 is a structural diagram between an output gear and an output shaft when the electric operating mechanism in the second embodiment performs forward closing rotation;
FIG. 7 is a diagram showing the structure between the output gear and the output shaft when the electric operating mechanism performs reverse brake-separating rotation in the second embodiment;
FIG. 8 is a schematic diagram of an output gear in a second embodiment;
FIG. 9 is a schematic view of an output shaft in a second embodiment;
1, a gear transmission mechanism;
2. the output gear is 2A, an inner plane, 21, a first inner key plane, 22 and a second inner key plane;
3. an output shaft 3A, an outer plane 31, a first outer key plane 32, a second outer key plane;
41. forward overshoot gap, 42, reverse overshoot gap.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating the basic structure of the present utility model by way of illustration only, and thus show only the constitution related to the present utility model.
Example 1
As shown in fig. 1 to 5, an overshoot-preventing electric operating mechanism includes
The gear transmission mechanism 1 and the output shaft 3, wherein the lower end of the output shaft 3 is connected with the isolating switch, and the upper end of the output shaft is connected with the output gear 2 of the gear transmission mechanism 1; a forward overshoot gap 41 and a reverse overshoot gap 42 are arranged between the output gear 2 and the output shaft 3;
the output gear 2 drives the isolating switch to perform forward closing rotation through the output shaft 3, and when the isolating switch enters a forward overshoot stroke, the forward overshoot gap 41 is suitable for accommodating the forward overshoot stroke transmitted to the output shaft 3 by the isolating switch;
the output shaft 3 drives the isolating switch to conduct reverse brake-separating rotation through the output shaft 3, and when the isolating switch enters a reverse overshoot stroke, the reverse overshoot clearance 42 is suitable for accommodating the reverse overshoot stroke transmitted to the output shaft 3 by the isolating switch.
Specifically, at least one outer plane 3A is provided on the output shaft 3;
at least one first inner key plane 21 and at least one second inner key plane 22 are formed in the shaft hole of the output gear 2;
as shown in fig. 2, when the output gear 2 drives the output shaft 3 to perform forward switching-on rotation, the first inner key plane 21 abuts against the outer plane 3A, and at this time, a forward overshoot gap 41 is formed between the second inner key plane 22 and the outer plane 3A;
as shown in fig. 3, when the output gear 2 drives the output shaft 3 to perform reverse brake-off rotation, the second inner key plane 22 abuts against the outer plane 3A, and at this time, a reverse overshoot gap 42 is formed between the first inner key plane 21 and the outer plane 3A.
In this embodiment, as shown in fig. 5, two outer planes 3A are disposed on the output shaft 3, and the two outer planes 3A are symmetrically disposed on the output shaft 3;
as shown in fig. 4, two first inner key planes 21 and two second inner key planes 22 are formed in the shaft hole of the output gear 2.
Example two
The present embodiment is based on the first embodiment, except that at least one first outer key plane 31 and second outer key plane 32 are provided on the upper output shaft 3, and at least one inner plane 2A is formed in the shaft hole of the output gear 2;
as shown in fig. 6, when the output gear 2 drives the output shaft 3 to perform forward switching-on rotation, the inner plane 2A abuts against the first outer key plane 31, and at this time, a forward overshoot gap 41 is formed between the second outer key plane 32 and the inner plane 2A;
as shown in fig. 7, when the output gear 2 drives the output shaft 3 to perform reverse brake-off rotation, the inner plane 2A and the second outer key plane 32 abut against each other, and at this time, a reverse overshoot gap 42 is formed between the first inner key plane 21 and the outer plane 3A.
Specifically, in this embodiment, as shown in fig. 8, two inner planes 2A are disposed on the output gear 2, and two outer planes 3A are symmetrically disposed on the output shaft 3;
as shown in fig. 9, two first external key planes 31 and two second external key planes 32 are provided on the output shaft 3.
Regarding the forward overshoot stroke and the backward overshoot stroke involved in the isolating switch, reference may be made to the prior patent, CN113345755a isolating switch operating mechanism and the working method thereof, in which the position of the energy storage spring passing through three points and one line during closing is referred to as the forward overshoot stroke, and the position of the energy storage spring passing through three points and one line during opening is referred to as the backward overshoot stroke.
In this patent application, the angle between the forward overshoot gap 41 and the backward overshoot gap 42 is between 10 ° and 20 °.
The anti-overshoot electric operating mechanism of the patent application drives the output shaft 3 to strike the gear transmission mechanism 1 when avoiding the overshoot of the isolating switch by setting an overshoot clearance between the output shaft 3 and the output gear 2, protects the gear transmission mechanism 1 and prolongs the service life of the electric operating mechanism.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. An overshoot-preventing electric operating mechanism comprises
The lower end of the output shaft is connected with the isolating switch, and the upper end of the output shaft is connected with an output gear of the gear transmission mechanism; it is characterized in that the method comprises the steps of,
a forward overshoot gap and a reverse overshoot gap are arranged between the output gear and the output shaft;
the output gear drives the isolating switch to conduct forward closing rotation through the output shaft, and when the isolating switch enters forward overshoot travel, the forward overshoot gap is suitable for accommodating the forward overshoot travel transmitted to the output shaft by the isolating switch;
the output shaft drives the isolating switch to conduct reverse opening rotation through the output shaft, and when the isolating switch enters a reverse overshoot stroke, the reverse overshoot clearance is suitable for accommodating the reverse overshoot stroke transmitted to the output shaft by the isolating switch.
2. The overshoot-preventing electric operation mechanism according to claim 1, wherein,
at least one outer plane is arranged on the output shaft;
at least one first inner key plane and at least one second inner key plane are formed in the shaft hole of the output gear;
when the output gear drives the output shaft to perform forward closing rotation, the first inner key plane is abutted against the outer plane, and at the moment, a forward overshoot gap is formed between the second inner key plane and the outer plane;
when the output gear drives the output shaft to rotate in a reverse opening mode, the second inner key plane is abutted to the outer plane, and at the moment, a reverse overshoot gap is formed between the first inner key plane and the outer plane.
3. The overshoot-preventing electric operation mechanism according to claim 2, wherein,
two outer planes are arranged on the output shaft and are symmetrically arranged on the output shaft;
two first inner key planes and two second inner key planes are formed in the shaft hole of the output gear.
4. The overshoot-preventing electric operation mechanism according to claim 1, wherein,
at least one first external key plane and at least one second external key plane are arranged on the output shaft;
at least one inner plane is formed in the shaft hole of the output gear;
when the output gear drives the output shaft to perform forward closing rotation, the inner plane is abutted with the first outer key plane, and at the moment, a forward overshoot gap is formed between the second outer key plane and the inner plane;
when the output gear drives the output shaft to rotate in a reverse opening mode, the inner plane is in butt joint with the second outer key plane, and at the moment, a reverse overshoot gap is formed between the first inner key plane and the outer key plane.
5. An overshoot-preventing electric operating mechanism according to claim 3, wherein,
two inner planes are arranged on the output gear, and two outer planes are symmetrically arranged on the output shaft;
and the output shaft is provided with two first external key planes and two second external key planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321942332.2U CN220290652U (en) | 2023-07-21 | 2023-07-21 | Overshoot-preventing electric operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321942332.2U CN220290652U (en) | 2023-07-21 | 2023-07-21 | Overshoot-preventing electric operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220290652U true CN220290652U (en) | 2024-01-02 |
Family
ID=89327924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321942332.2U Active CN220290652U (en) | 2023-07-21 | 2023-07-21 | Overshoot-preventing electric operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220290652U (en) |
-
2023
- 2023-07-21 CN CN202321942332.2U patent/CN220290652U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110942946A (en) | Automatic switch-off mechanism | |
| CN220290652U (en) | Overshoot-preventing electric operating mechanism | |
| CN103646827A (en) | Energy storage system of circuit breaker operating mechanism | |
| AU2021101185A4 (en) | Improved energy-saving starter with one-touch start function and its control method | |
| CN110211822B (en) | Operating mechanism for electrical switch and electrical switch | |
| WO2020228340A1 (en) | Switching device | |
| CN205944850U (en) | Handcart -type circuit breaker | |
| JP6535610B2 (en) | Gas circuit breaker | |
| CN2809841Y (en) | DC trigger switch with speed control | |
| CN201550430U (en) | Electric grass pushing machine adopting safety switch | |
| CN111403226A (en) | Energy storage spring structure of isolating switch | |
| KR100618605B1 (en) | A switching apparatus for a gas insulated circuit breaker | |
| KR100788166B1 (en) | Mechanical spring operating device of circuit breaker of gas insulated switchgear | |
| CN207624609U (en) | Switch control device and gas-insulated ring network cabinet | |
| CN211654666U (en) | Energy storage spring structure of isolating switch, three-position switch and isolating switch | |
| CN220155468U (en) | Double-station electric operating mechanism convenient to install | |
| CN201780890U (en) | Pinion-and-rack transmission mechanism for automatic transfer switching equipment | |
| CN104143486B (en) | Chopper and operating mechanism thereof | |
| CN101872689A (en) | Worm gear and worm transmission mechanism for automatic change-over switch equipment | |
| CN218274305U (en) | Pre-action prevention and control device applied to spring mechanism | |
| CN210123696U (en) | Three-station electric mechanism stopping device | |
| JP2005209554A (en) | Power breaker | |
| CN115863101B (en) | Detachable modularized breaker operating mechanism | |
| CN210489568U (en) | Limiting structure of circuit breaker operating mechanism | |
| CN111710551B (en) | Direct control device and control method for contact net isolating switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |