CN112735872B - Switch transmission device - Google Patents
Switch transmission device Download PDFInfo
- Publication number
- CN112735872B CN112735872B CN202011615612.3A CN202011615612A CN112735872B CN 112735872 B CN112735872 B CN 112735872B CN 202011615612 A CN202011615612 A CN 202011615612A CN 112735872 B CN112735872 B CN 112735872B
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- China
- Prior art keywords
- rotating wheel
- rotating
- shaft
- driving
- connecting rod
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Classifications
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- 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
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- 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
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
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- 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
- H01H2003/326—Driving mechanisms, i.e. for transmitting driving force to the contacts using bearings
Abstract
The invention provides a switch transmission device, which relates to the technical field of power equipment and specifically comprises a transmission shaft, a third rotating wheel, a rotating shaft sleeve, a roller and a moving contact driving shaft, wherein the third rotating wheel and the rotating shaft sleeve are arranged on the transmission shaft, the third rotating wheel is connected with a driving assembly, the driving assembly drives the third rotating wheel to rotate, the third rotating wheel drives the rotating shaft sleeve to rotate through the transmission shaft, a track groove is formed in the rotating shaft sleeve, the track groove extends along the axial direction of the rotating shaft sleeve, the roller is arranged in the track groove, the roller is hinged to one end of the moving contact driving shaft, and the other end of the moving contact driving shaft is used for being connected with a moving contact of a switch. The switch transmission device has the advantages of simple transmission structure, reliable transmission and improved stability.
Description
Technical Field
The invention relates to an electric facility, in particular to a switch transmission device.
Background
When the switch executes the functions of opening and closing, the switch driving assembly realizes opening and closing through the switch transmission device, and the performance of the switch transmission device directly influences the performance of the switch. The existing switch transmission device has the problems of complex structure, unreliable transmission, low stability and the like, so that the structure of the switch is directly complex, the transmission is unreliable, the stability is low, and the circuit safety is influenced.
Disclosure of Invention
The invention aims to provide a switch transmission device which is simple in transmission structure, reliable in transmission and high in stability.
In order to solve the above problems, the present invention provides a switch transmission device, which comprises a transmission shaft, a third rotating wheel, a rotating shaft sleeve, a roller, and a moving contact driving shaft,
the third rotating wheel and the rotating shaft sleeve are arranged on the transmission shaft, the third rotating wheel, the rotating shaft sleeve and the transmission shaft synchronously rotate, the third rotating wheel is connected with a driving assembly, the driving assembly drives the third rotating wheel to rotate, the third rotating wheel drives the rotating shaft sleeve to rotate through the transmission shaft,
the switch comprises a rotating shaft sleeve, a moving contact driving shaft, a roller, a switch moving contact and a switch moving contact, wherein the rotating shaft sleeve is provided with a track groove, the track groove is an arc-shaped hole extending along the axial direction of the rotating shaft sleeve, the roller is arranged in the track groove, the roller is hinged with one end of the moving contact driving shaft, the other end of the moving contact driving shaft is used for being connected with the switch moving contact, and in the rotating process of the rotating shaft sleeve, the roller moves upwards or downwards so as to drive the switch moving contact to be in contact with or disconnected from the fixed contact.
Further, the driving assembly comprises a second connecting rod, a driving shaft, a driving wheel, a first rotating wheel, a first connecting rod and a first spring,
the driving wheel and the first rotating wheel are arranged on different positions of the driving shaft, the driving wheel, the first rotating wheel and the driving shaft rotate synchronously, the driving wheel is used for being connected with a driving device,
the transmission shaft is arranged on the bracket,
one end of the first connecting rod is hinged on the first rotating wheel, the other end of the first connecting rod is connected on the support, the hinged point of the first connecting rod and the first rotating wheel deviates from the rotating center of the first rotating wheel, the first connecting rod is telescopic, the first spring is sleeved on the first connecting rod,
one end of the second connecting rod is hinged to the third rotating wheel, the other end of the second connecting rod is hinged to the first rotating wheel, a hinge point of the second connecting rod and the third rotating wheel deviates from a rotating center of the third rotating wheel, and a hinge point of the second connecting rod and the first rotating wheel deviates from a rotating center of the first rotating wheel.
Further, the transmission shaft is a hexagonal shaft.
Furthermore, one end of the moving contact driving shaft, which is used for being connected with the moving contact of the switch, is provided with a thread, and the moving contact driving shaft is connected with the moving contact of the switch through the thread.
Furthermore, a connecting hole is formed in the first rotating wheel, and the second connecting rod is arranged in the connecting hole of the first rotating wheel through a pin shaft.
Further, the center of the track groove in the longitudinal direction is an arc having the same radius as the roller.
The switch transmission device comprises the transmission shaft, the third rotating wheel, the rotating shaft sleeve, the roller and the moving contact driving shaft, the driving assembly drives the third rotating wheel to rotate, the third rotating wheel drives the rotating shaft sleeve to rotate through the transmission shaft, and therefore the roller drives the moving contact driving shaft to move up and down, switching-on and switching-off are achieved, the transmission structure is simple, transmission is reliable, and stability is improved.
Drawings
Fig. 1 is a schematic front view of a switch transmission device according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a switch gear according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between a roller and a switch moving contact of a switch transmission device according to an embodiment of the present invention;
fig. 4 is a schematic front view of a switch gear according to an embodiment of the present invention when a first spring is compressed to a minimum.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The terms "upper", "lower", "front", "rear", "left" and "right" and the like appearing in the embodiments of the present invention indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
As shown in fig. 1 and fig. 2, a switch transmission device according to an embodiment of the present invention includes a transmission shaft 23, a third rotating wheel 22, a rotating shaft sleeve 24, a roller 25, a movable contact driving shaft 26,
the third rotating wheel 22 and the rotating shaft sleeve 24 are respectively arranged at different positions of the transmission shaft 23 along the length direction, the third rotating wheel 22 and the rotating shaft sleeve 24 synchronously rotate with the transmission shaft 23, the third rotating wheel 22 is connected with a driving component, the driving component drives the third rotating wheel 22 to rotate, the third rotating wheel 22 drives the rotating shaft sleeve 24 to rotate through the transmission shaft 23, specifically, the third rotating wheel 22, the rotating shaft sleeve 24 and the transmission shaft 23 are integrally formed, or the third rotating wheel 22 and the rotating shaft sleeve 24 are in key connection with the transmission shaft 23, or the third rotating wheel 22 and the rotating shaft sleeve 24 are connected on the transmission shaft 23 through other modes,
as shown in fig. 2 and 3, the rotary shaft sleeve 24 is provided with a track groove 241, the track groove 241 is an arc-shaped through hole extending in the axial direction of the rotary shaft sleeve 24, and the center of the track groove 241 in the longitudinal direction is an arc having the same radius as the roller 25. The roller 25 is disposed in the track groove 241, the roller 25 is hinged to one end of the movable contact driving shaft 26 through a pin 27, the other end of the movable contact driving shaft 26 is used for connecting the switch movable contact 41, and in the rotating process of the rotating shaft sleeve 24, the roller 25 moves upward or downward, so as to drive the switch movable contact 41 to contact with or disconnect from the fixed contact. When the switch transmission device works, the driving assembly drives the transmission shaft 23 to rotate through the third rotating wheel 22, the transmission shaft 23 drives the rotating shaft sleeve 24 to rotate, so that the roller 25 drives the switch moving contact 41 to move upwards or downwards through the moving contact driving shaft 26, when the switch moving contact 41 moves upwards, the switch is disconnected, and when the switch moving contact 41 moves downwards, the switch is closed. Because the switch transmission device comprises the transmission shaft 23, the third rotating wheel 22, the rotating shaft sleeve 24, the roller 25 and the moving contact driving shaft 26, the driving assembly drives the third rotating wheel 22 to rotate, the third rotating wheel 22 drives the rotating shaft sleeve 24 to rotate through the transmission shaft 23, so that the roller 25 drives the moving contact driving shaft 26 to move up and down, the switching-on and switching-off are realized, the transmission structure is simple, the transmission is reliable, and the transmission stability is high.
Alternatively, the driving assembly includes the second link 21, the driving shaft, the driving wheel 11, the first rotating wheel 12, the first link 13 and the first spring 14,
the driving wheel 11 and the first rotating wheel 12 are arranged at different positions of the driving shaft along the length direction, the driving wheel 11 and the first rotating wheel 12 rotate synchronously with the driving shaft, the driving wheel 11 is used for being connected with a driving device, specifically, the driving wheel 11 and the first rotating wheel 12 are integrally formed with the driving shaft, or the driving wheel 11 and the first rotating wheel 12 are connected with the driving shaft through keys,
the transmission shaft 23 is provided on the bracket 31,
one end of the first connecting rod 13 is hinged on the first rotating wheel 12, the other end of the first connecting rod 13 is connected on the bracket 31, the hinged point of the first connecting rod 13 and the first rotating wheel 12 deviates from the rotating center of the first rotating wheel 12, the first connecting rod 13 can stretch, the first spring 14 is sleeved on the first connecting rod 13,
one end of the second link 21 is hinged to the third rotating wheel 22, the other end of the second link 21 is hinged to the first rotating wheel 12, a hinge point of the second link 21 and the third rotating wheel 22 deviates from a rotation center of the third rotating wheel 22, and a hinge point of the second link 21 and the first rotating wheel 12 deviates from a rotation center of the first rotating wheel 12. Because the drive assembly includes first connecting rod 13, second connecting rod 21 and drive shaft, drive wheel 11, first turning wheel 12, the drive shaft drives second connecting rod 21 through first turning wheel 12 and moves to make transmission shaft 23 rotate, further guarantee that the transmission is reliable, transmission stability improves.
Optionally, the drive shaft 23 is a hexagonal shaft.
Optionally, an external thread is disposed at one end of the moving contact driving shaft 26 for connecting the moving contact 41 of the switch, a connecting hole is disposed on the moving contact 41 of the switch, an internal thread is disposed in the connecting hole, and one end of the moving contact driving shaft 26 provided with the external thread is disposed in the connecting hole, so that the moving contact driving shaft 26 is connected with the moving contact 41 of the switch. The movable contact driving shaft 26 is connected with the switch movable contact 41 through threads, so that the movable contact driving shaft 26 is connected with the switch movable contact 41 more firmly.
Optionally, a connecting hole is formed in the first rotating wheel 12, the second connecting rod 21 is disposed in the connecting hole of the first rotating wheel 12 through a pin, when the first rotating wheel 12 starts to rotate, the second connecting rod 21 does not move, when the first spring 14, the driving wheel 11 and the first rotating wheel 12 continuously rotate to a dead point as shown in fig. 4, the first spring 14 is compressed to a limit, the driving wheel 11 rotates again, the first spring 14 is released, when the first spring 14 is released, the pin of the second connecting rod 21 contacts with the hole wall of the connecting hole of the first rotating wheel 12, and the first rotating wheel 12 drives the second connecting rod 21 to move. Due to the arrangement of the connecting holes on the first rotating wheel 12, the moving stroke of the roller 25 can be set according to actual requirements.
The working process of the switch transmission device is as follows:
during switching-on, as shown in fig. 2, the power mechanism drives the driving wheel 11 to rotate rightwards, the driving wheel 11 drives the first spring 14 and the first rotating wheel 12 to rotate around the center of the driving wheel 11 through the driving shaft, the first connecting rod 13 is shortened in the process that the driving wheel 11 rotates rightwards, the first spring 14 is compressed, the second connecting rod 21 does not move at the moment, when the first spring 14, the driving wheel 11 and the first rotating wheel 12 rotate to the dead point shown in fig. 4, the first spring 14 is compressed to the limit, the driving wheel 11 rotates again, the first spring 14 is released, when the first spring 14 is released, the second connecting rod 21 drives the third rotating wheel 22 to rotate anticlockwise, the third rotating wheel 22 drives the transmission shaft 23 to rotate, so that the rotating shaft sleeve 24 rotates anticlockwise, the roller 25 drives the moving contact driving shaft 26 to move downwards, so that the switch moving contact 41 moves downwards to contact with the switch static contact, so that the switching-on function of the switch is realized, when switching-on, the rotating shaft sleeve 24 rotates to the equal circle in the middle of the track 241, and the roller 25 does not move upwards and downwards;
during opening, the power mechanism drives the driving wheel 11 to rotate leftwards, the driving wheel 11 drives the first spring 14 and the first rotating wheel 12 to rotate around the center of the driving wheel 11 through the driving shaft, in the process that the driving wheel 11 rotates leftwards, the first connecting rod 13 is shortened, the first spring 14 is compressed, the second connecting rod 21 does not move at the moment, when the first spring 14, the driving wheel 11 and the first rotating wheel 12 rotate to the dead point shown in fig. 4, the first spring 14 is compressed to the limit, the driving wheel 11 rotates again, the first spring 14 is released, when the first spring 14 is released, the second connecting rod 21 drives the third rotating wheel 22 to rotate clockwise, the third rotating wheel 22 drives the transmission shaft 23 to rotate, the rotating shaft sleeve 24 rotates clockwise, the roller 25 drives the moving contact driving shaft 26 to move upwards, the moving contact 41 to move upwards, the switch fixed contact is disconnected with the switch, the opening function of the switch is achieved, and during opening, the rotating shaft sleeve 24 rotates to the equal circle in the middle of the track groove 241, and the roller 25 cannot move upwards.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (5)
1. A switch transmission device is characterized by comprising a transmission shaft (23), a third rotating wheel (22), a rotating shaft sleeve (24), a roller (25) and a moving contact driving shaft (26),
the third rotating wheel (22) and the rotating shaft sleeve (24) are arranged on the transmission shaft (23), the third rotating wheel (22), the rotating shaft sleeve (24) and the transmission shaft (23) synchronously rotate, the third rotating wheel (22) is connected with a driving assembly, the driving assembly drives the third rotating wheel (22) to rotate, the third rotating wheel (22) drives the rotating shaft sleeve (24) to rotate through the transmission shaft (23),
the rotating shaft sleeve (24) is provided with a track groove (241), the track groove (241) is an arc-shaped hole extending along the axial direction of the rotating shaft sleeve (24), the roller (25) is arranged in the track groove (241), the roller (25) is hinged with one end of the moving contact driving shaft (26), the other end of the moving contact driving shaft (26) is used for being connected with a moving contact of a switch, in the rotating process of the rotating shaft sleeve (24), the roller (25) moves upwards or downwards so as to drive the moving contact of the switch to be in contact with or disconnected from a fixed contact,
the center of the track groove (241) in the longitudinal direction is an arc having the same radius as that of the roller (25).
2. The switch gear according to claim 1,
the driving component comprises a second connecting rod (21), a driving shaft, a driving wheel (11), a first rotating wheel (12), a first connecting rod (13) and a first spring (14),
the driving wheel (11) and the first rotating wheel (12) are arranged at different positions of the driving shaft, the driving wheel (11) and the first rotating wheel (12) rotate synchronously with the driving shaft, the driving wheel (11) is used for being connected with a driving device,
the transmission shaft (23) is arranged on the bracket (31),
one end of the first connecting rod (13) is hinged on the first rotating wheel (12), the other end of the first connecting rod (13) is connected on the support (31), a hinged point of the first connecting rod (13) and the first rotating wheel (12) deviates from a rotating center of the first rotating wheel (12), the first connecting rod (13) is telescopic, the first spring (14) is sleeved on the first connecting rod (13),
one end of the second connecting rod (21) is hinged to the third rotating wheel (22), the other end of the second connecting rod (21) is hinged to the first rotating wheel (12), a hinge point of the second connecting rod (21) and the third rotating wheel (22) deviates from a rotating center of the third rotating wheel (22), and a hinge point of the second connecting rod (21) and the first rotating wheel (12) deviates from a rotating center of the first rotating wheel (12).
3. The switch gear according to claim 1,
the transmission shaft (23) is a hexagonal shaft.
4. The switch gear according to claim 1,
one end of the moving contact driving shaft (26) used for being connected with the switch moving contact (41) is provided with threads, and the moving contact driving shaft (26) is connected with the switch moving contact (41) through the threads.
5. The switch gear according to claim 2,
the first rotating wheel (12) is provided with a connecting hole, and the second connecting rod (21) is arranged in the connecting hole of the first rotating wheel (12) through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011615612.3A CN112735872B (en) | 2020-12-30 | 2020-12-30 | Switch transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011615612.3A CN112735872B (en) | 2020-12-30 | 2020-12-30 | Switch transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112735872A CN112735872A (en) | 2021-04-30 |
| CN112735872B true CN112735872B (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011615612.3A Active CN112735872B (en) | 2020-12-30 | 2020-12-30 | Switch transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112735872B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545971C (en) * | 2006-08-18 | 2009-09-30 | 宁波奇乐电器实业总公司 | Automatic transfer switching electric appliance |
| CN203690184U (en) * | 2014-01-22 | 2014-07-02 | 浙江盛中意电力科技有限公司 | Electric earthing knife-switch device |
| CN105513880B (en) * | 2015-12-28 | 2017-09-15 | 珠海鼎冠电气有限公司 | Vacuum circuit breaker, permanent-magnet manipulating mechanism and its operating method |
| CN106373825B (en) * | 2016-06-15 | 2018-09-28 | 厦门华电开关有限公司 | A kind of spring operating mechanism for vacuum load switch |
| CN106653422B (en) * | 2017-01-04 | 2018-12-21 | 柏法瑞电气（厦门）有限公司 | A kind of reversing arrangement applied to change-over switch |
| CN109509646B (en) * | 2017-09-15 | 2023-01-06 | Abb 瑞士股份有限公司 | Switching device |
| CN111653450A (en) * | 2019-03-04 | 2020-09-11 | 胡春生 | Magnetic latching operation mechanism for gas insulated circuit breaker cabinet |
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2020
- 2020-12-30 CN CN202011615612.3A patent/CN112735872B/en active Active
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| Publication number | Publication date |
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| CN112735872A (en) | 2021-04-30 |
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