CN114038705B - Reset device of isolating switch operating mechanism - Google Patents
Reset device of isolating switch operating mechanism Download PDFInfo
- Publication number
- CN114038705B CN114038705B CN202111325216.1A CN202111325216A CN114038705B CN 114038705 B CN114038705 B CN 114038705B CN 202111325216 A CN202111325216 A CN 202111325216A CN 114038705 B CN114038705 B CN 114038705B
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- Prior art keywords
- shaft
- reset
- operating shaft
- tension spring
- operating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a reset device of isolator operating device, relates to the low-voltage apparatus field, and it includes: an operating shaft configured to rotate around a fixed center shaft, the operating shaft having two waist holes formed thereon; the two penetrating shafts are configured to be arranged in the two waist holes and respectively slide in the two waist holes along with the rotation of the operating shaft; and two ends of the two elastic reset pieces are respectively connected with the operating shaft and the two penetrating shafts.
Description
Technical Field
The invention relates to the field of low-voltage electric appliances, in particular to a reset device of an isolating switch operating mechanism.
Background
The rotation angle of the traditional disconnecting switch operating mechanism is 90 degrees, but due to the existence of idle stroke, the opening distance of a moving contact and a static contact is small, and the opening operation under large voltage is difficult to realize. The existing isolating switch generally requires independent manual operation, the rotating angle of an operating mechanism is 90 degrees, and the prior art is usually realized through a spring dead point. Before a dead point, the manual operation operating mechanism compresses the spring to store energy, after the dead point, the spring releases the energy to drive the contact to realize a rapid opening process, but because the rotating angle of the operating mechanism is 90 degrees, a certain idle stroke required by the spring compression is ensured to exist, the opening distance of the contact hardly reaches 90 degrees, the opening distance of the opening is smaller, and the opening operation under large voltage is difficult to realize.
Disclosure of Invention
The present invention is directed to a reset device for an operating mechanism of a disconnecting switch, which solves at least one of the above problems.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiments of the present invention, there is provided a reset device for an operating mechanism of a disconnecting switch, including:
an operating shaft configured to rotate about a fixed center axis, the operating shaft having two kidney holes formed thereon;
the two through shafts are configured to be arranged in the two waist holes and respectively slide in the two waist holes along with the rotation of the operation shaft; and
two ends of the two elastic reset pieces are respectively connected with the operating shaft and the two penetrating shafts.
Optionally, the resilient return comprises a return spring.
Optionally, a groove is formed at the upper end of the through shaft and used for placing one end of the tension spring; and two reset spring rods are arranged on the operating shaft and used for suspending the other ends of the reset tension springs.
Optionally, one end of the reset tension spring rotates along with the operating shaft, and the other end of the reset tension spring moves along with the through shaft to generate a corresponding stretching amount so as to provide a pulling force and a brake separating reset effect.
Optionally, in the closing position of the disconnecting switch, the reset tension spring provides initial pressure to make the penetrating shaft and the operating shaft consistent, wherein the contact is in a closed state.
Optionally, when the tension spring is gradually extended to the dead point position of the main torsion spring, the penetrating shaft is in contact with the other end of the waist hole of the operating shaft, so that the tension amount of the tension spring is maximized.
Optionally, the elastic restoring member comprises a compression spring.
Optionally, the resilient return member comprises a torsion spring.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a reset device of an operating mechanism of a disconnecting switch according to an embodiment of the invention;
fig. 2 is a schematic diagram of a closing state of a reset device of an isolating switch operating mechanism according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a dead point state of the reset device of the disconnecting switch operating mechanism in the opening process of the reset device according to the embodiment of the invention;
FIG. 4 is a schematic view of the reset device of the disconnecting switch operating mechanism according to the embodiment of the present invention, which stops after the operating shaft rotates 90 degrees;
fig. 5 is a schematic diagram of the opening state of the reset device of the disconnecting switch operating mechanism according to the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the existing disconnecting switch opening process, the contact opening distance is small, large opening distance cannot be realized, and opening operation under large voltage is difficult to realize. The invention aims to provide a resetting device of an operating mechanism of a disconnecting switch, which can ensure that the disconnecting switch can reach a large opening angle of 90 degrees when the disconnecting switch is opened, realize larger opening distance between a moving contact and a static contact and ensure that the disconnecting switch can be used on a higher voltage circuit.
Referring to fig. 1 to 5, the main components of the present application include an operating shaft 1, a return tension spring 3 and a through shaft 4, where the operating shaft 1 is an input shaft of an operating mechanism and rotates around a fixed central shaft to provide an input torque; the penetrating shaft 4 is connected with the operating mechanism and the contact system, and the rapid opening and closing operation of the contact is realized under the pressure of the main spring; the reset tension spring 3 provides reset force, so that the contact system can rotate 90 degrees when the operating mechanism is switched off. The operation shaft 1 is provided with a waist hole 2 of a through shaft 4 and a reset spring rod 6, one end of a reset tension spring 3 is hung on the reset spring rod 6 on the operation shaft 1, and the other end is hung on a through shaft groove 5. In the rotating process of the operating shaft 1, the penetrating shaft 4 slides in the waist hole 2 along with the operating shaft 1, one end of the reset tension spring 3 rotates along with the operating shaft 1, and the other end of the reset tension spring moves along with the penetrating shaft 4 to generate different stretching amounts, so that the tension and the brake-separating reset effect are provided.
As shown in fig. 1, the components of the return mechanism mainly include a return tension spring 3, a through shaft 4, and an operation shaft 1.
The operating shaft 1 is an operating mechanism input shaft and rotates around a fixed central shaft; two waist holes 2 are arranged on the operating shaft 1, and the penetrating shaft 4 is placed in the waist holes 2 of the operating shaft 1 and slides in the waist holes 2 along with the rotation of the operating shaft 1.
One end of the penetrating shaft 4 penetrates through the waist hole 2 of the operating shaft 1, and the other end is inserted into a rotating shaft hole of the contact system to connect the mechanism system and the contact system.
The upper end of the penetrating shaft 4 is provided with a groove for placing one end of the tension spring; two return spring rods 6 are arranged on the operating shaft 1 and used for hanging the other ends of the return tension springs 3. One end of the reset tension spring 3 rotates along with the operating shaft 1, and the other end of the reset tension spring moves along with the through shaft 4 to generate different stretching amounts, so that the effects of tension and brake-separating reset are provided.
In the closing position of the disconnecting switch, the reset tension spring 3 provides initial pressure to make the penetrating shaft 4 consistent with the operating shaft 1, and the contact 8 is in a closed state, as shown in figure 2. During the separating brake, the operating shaft 1 anticlockwise rotates, because the existence of contact 8 pressure, the contact 8 is in the closed state all the time, consequently runs through axle 4 and does not move, and the extension spring is tensile gradually, and when 7 dead point positions of main torsional spring, run through axle 4 and the contact of the 1 waist hole 2 other end of operating shaft, the extension spring tensile volume reaches the biggest, as shown in fig. 3. After the dead point, the main torsion spring 7 releases the torque rapidly, the operation shaft 1 drives the penetrating shaft 4 to rotate, the rotating shaft 9 rotates rapidly along with the rotation, and the contact 8 is separated. When the operating shaft 1 rotates 90 °, the operating shaft 1 stops rotating due to the existence of the limit, as shown in fig. 4. At this time, the moving contact and the static contact are separated, the stretching amount of the tension spring is still the maximum, and the tension force is the strongest, so the penetrating shaft 4 can continuously slide in the waist hole 2 of the operating shaft 1 under the action of the reset tension spring 3, and then the rotating shaft 9 is driven to continuously rotate to the initial position, the brake-separating process is completed, and the 90-degree brake-separating distance is realized, as shown in fig. 5.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Possible alternatives of the invention are for example the following:
1) The reset tension spring 3 is changed into a pressure spring, one end of the pressure spring is pressed on the operating shaft 1, and the other end of the pressure spring is pressed on the through shaft 4, so that the reset effect same as that of the tension spring is realized;
2) The reset tension spring 3 is changed into a torsion spring, the central shaft is concentric with the operating shaft 1, one end of the central shaft is arranged on the operating shaft 1, and the other end of the central shaft presses the penetrating shaft 4, so that the reset effect same as that of the reset tension spring 3 is realized.
Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A reset device for an operating mechanism of a disconnector, comprising:
an operating shaft configured to rotate about a fixed center axis, the operating shaft having two kidney holes formed thereon;
the two through shafts are configured to be arranged in the two waist holes and respectively slide in the two waist holes along with the rotation of the operation shaft; one end of each penetrating shaft penetrates through the waist hole of the operating shaft, and the other end of each penetrating shaft is inserted into the rotating shaft hole of the contact system; and
two ends of the two elastic resetting pieces are respectively connected with the operating shaft and the two penetrating shafts;
the elastic reset piece comprises a reset tension spring;
the upper end of the penetrating shaft is provided with a groove for placing one end of the reset tension spring; two reset spring rods are arranged on the operating shaft and used for hanging the other ends of the reset tension springs;
one end of the reset tension spring rotates along with the operating shaft, and the other end of the reset tension spring moves along with the through shaft to generate corresponding stretching amount so as to provide tension and brake separating reset effects;
at the switching-on position of the isolating switch, the reset tension spring provides initial pressure to enable the penetrating shaft to be consistent with the operating shaft, wherein the contact is in a closed state; when the switching-off state, the operating shaft anticlockwise rotates, and based on the contact pressure effect, the contact is always in the closed state, so as to cause the through shaft does not move, and the return tension spring is gradually stretched, and when the dead point position of the main torsion spring, the through shaft contacts with the waist hole one end of the operating shaft, and the stretching amount of the return tension spring reaches the maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111325216.1A CN114038705B (en) | 2021-11-10 | 2021-11-10 | Reset device of isolating switch operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111325216.1A CN114038705B (en) | 2021-11-10 | 2021-11-10 | Reset device of isolating switch operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114038705A CN114038705A (en) | 2022-02-11 |
| CN114038705B true CN114038705B (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111325216.1A Active CN114038705B (en) | 2021-11-10 | 2021-11-10 | Reset device of isolating switch operating mechanism |
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| CN (1) | CN114038705B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223939A1 (en) * | 1985-10-28 | 1987-06-03 | Sprecher Energie AG | Polyphase high tension isolating switch |
| CN105513876A (en) * | 2016-01-19 | 2016-04-20 | 扬州北辰电气设备有限公司 | Single-shaft three-station isolating switch operating mechanism |
| CN206451617U (en) * | 2016-12-30 | 2017-08-29 | 施耐德万高（天津）电气设备有限公司 | The energy-stored spring operating mechanism of low voltage isolation switch |
| CN107731611A (en) * | 2017-11-27 | 2018-02-23 | 湖南长高成套电器有限公司 | A kind of tri-station isolating switch twin shaft is without spring operating mechanism |
| CN213071051U (en) * | 2020-08-17 | 2021-04-27 | 江苏大全凯帆开关股份有限公司 | High-voltage molded case circuit breaker with gas blocking structure |
-
2021
- 2021-11-10 CN CN202111325216.1A patent/CN114038705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0223939A1 (en) * | 1985-10-28 | 1987-06-03 | Sprecher Energie AG | Polyphase high tension isolating switch |
| CN105513876A (en) * | 2016-01-19 | 2016-04-20 | 扬州北辰电气设备有限公司 | Single-shaft three-station isolating switch operating mechanism |
| CN206451617U (en) * | 2016-12-30 | 2017-08-29 | 施耐德万高（天津）电气设备有限公司 | The energy-stored spring operating mechanism of low voltage isolation switch |
| CN107731611A (en) * | 2017-11-27 | 2018-02-23 | 湖南长高成套电器有限公司 | A kind of tri-station isolating switch twin shaft is without spring operating mechanism |
| CN213071051U (en) * | 2020-08-17 | 2021-04-27 | 江苏大全凯帆开关股份有限公司 | High-voltage molded case circuit breaker with gas blocking structure |
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| Publication number | Publication date |
|---|---|
| CN114038705A (en) | 2022-02-11 |
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