CN203659766U - Transmission device for circuit breaker auxiliary switch - Google Patents
Transmission device for circuit breaker auxiliary switch Download PDFInfo
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- CN203659766U CN203659766U CN201320870074.1U CN201320870074U CN203659766U CN 203659766 U CN203659766 U CN 203659766U CN 201320870074 U CN201320870074 U CN 201320870074U CN 203659766 U CN203659766 U CN 203659766U
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- transmission device
- auxiliary switch
- circuit breaker
- axis
- lever
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model provides a transmission device for a circuit breaker auxiliary switch, and belongs to the technical field of accessories of high-, medium- and low-voltage complete power equipment. The circuit breaker comprises a shell; one end of the shell is provided with an auxiliary switch; a support is arranged on the shell; a transmission device is arranged on the support; one end of the transmission device is connected with the auxiliary switch, and the other end is contacted and matched with a circuit breaker main shaft located inside the shell. The transmission device for the circuit breaker auxiliary switch is characterized in that the transmission device comprises a middle shaft, a swing rod, a connection rod, a lever, and a tension spring, wherein the middle shaft and the lever are rotatably mounted on the support; the swing rod is fixed on one end of the middle shaft and is contacted and matched with the circuit breaker main shaft; the extending part of the other end of the middle shaft is hinged with one end of the connection rod; the other end of the connection rod is hinged with one end of the lever; the other end of the lever is connected with one end of the tension spring; and the other end of the tension spring is connected with the end part of the swing end of the auxiliary switch. The transmission device for the circuit breaker auxiliary switch has the advantages of reliable transmission and compact structure.
Description
Technical field
The utility model belongs to low-voltage complete power equipment accessory technical field, is specifically related to a kind of transmission device of auxiliary switch for circuit breaker, for pulling auxiliary switch conversion.
Background technology
Circuit breaker generally meets product requirement by increasing auxiliary switch, and auxiliary switch is triggered by breaker main shaft.Along with the requirement of product miniaturization and compactedness, also there is to higher requirement the installation site of auxiliary switch, conventionally auxiliary switch need to be arranged near the secondary plugging-in element of circuit breaker top, so just can reduce the connecting line between auxiliary switch and secondary plugging-in element, adapt to the requirement of product miniaturization, compact and reasonable arrangement.But this mounting means can make to strengthen as the distance between breaker main shaft and the auxiliary switch of trigger source equally, add breaker main shaft top and be also provided with such as the miscellaneous part of controller, breaker mechanism inside etc., thereby bring difficulty to structural design and the installation of the transmission device of auxiliary switch for circuit breaker.
Summary of the invention
The purpose of this utility model is the transmission device that the auxiliary switch for circuit breaker of a kind of compact conformation, reliable transmission will be provided.
The purpose of this utility model reaches like this, a kind of transmission device of auxiliary switch for circuit breaker, described circuit breaker comprises housing, one end of described housing is provided with auxiliary switch, support is also installed on housing, on described support, transmission device is installed, described transmission device one end connects auxiliary switch, the other end is coordinated by the breaker main shaft contact that is positioned at enclosure interior, it is characterized in that: described transmission device comprises axis, fork, connecting rod, lever and extension spring, described axis and described lever are all arranged on described support rotationally, described fork is fixed on one end of axis and contacts cooperation with breaker main shaft, one end of the extension of the other end of axis and described connecting rod is hinged, one end of the other end of connecting rod and described lever is hinged, the other end of lever connects one end of extension spring, the other end of extension spring connects the end of the swinging end of described auxiliary switch.
In a specific embodiment of the present utility model, described transmission device also comprises a back-moving spring, and this back-moving spring is set on axis, and one end is resisted against on described support, and the other end is resisted against on described fork.
In another specific embodiment of the present utility model, described support is provided with a sidewall, described sidewall is provided with the first hub setting hole, described support also comprises a mounting bracket, on described mounting bracket, offer the second pivot hole, the two ends of described axis are arranged on respectively in described the first hub setting hole and the second hub setting hole rotationally.
In another specific embodiment of the present utility model, described fork inside is provided with and the corresponding endoporus of axis profile.
In another specific embodiment of the present utility model, the endoporus of described fork is hexagon, and described axis profile is hexagon.
Also have in a specific embodiment of the present utility model, on described fork, be formed with the swing arm coordinating for contacting with described breaker main shaft.
In of the present utility model and then a specific embodiment, described lever is arranged on described support rotationally by bearing pin, and limits described bearing pin by jump ring.
More of the present utility model and in a specific embodiment, described fork and described axis integral production form.
In more of the present utility model and then a specific embodiment, described support and housing integral production form.
The utility model is owing to adopting after said structure, because axis, lever are located by support, therefore avoided the alignment error between different keepers, make this structure driven error little, reliable transmission, meanwhile, the Multi-stage transmission lever system forming between axis, connecting rod, lever in this structure, can significantly save the shared space of this transmission device, make compact conformation.
Brief description of the drawings
Fig. 1 is an example structure schematic diagram of the present utility model.
Fig. 2 is the three-dimensional structure diagram of support described in the utility model.
Fig. 3 is the three-dimensional explosive view of transmission device described in the utility model.
Fig. 4 is transmission device described in the utility model state diagram in closing position at circuit breaker.
Fig. 5 is transmission device described in the utility model state diagram in open position at circuit breaker.
In figure: 1. housing, 11. supports, 111. first pivot holes, 112. the 3rd pivot holes, 113. installing holes, 114. holes, 115. mounting brackets, 1151. second hub setting holes; 2. transmission device, 21. axis, 22. back-moving springs, 23. forks, 231. swing arms, 24. levers, 25. connecting rods, 26. bearing pins, 261. jump rings, 27. extension springs; 3. auxiliary switch, 31. swinging ends, 311. ends.
Embodiment
In order to make the public can fully understand technical spirit of the present utility model and beneficial effect; applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, anyly changes in the form rather than substance and all should be considered as protection range of the present utility model according to the utility model design.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the utility model relates to a kind of transmission device of auxiliary switch for circuit breaker, described circuit breaker comprises housing 1, and one end of described housing 1 is provided with auxiliary switch 3, and auxiliary switch 3 inside are provided with the convertible contact of many groups.Support 11 is also installed on housing 1, and certainly, described support 11 forms with housing 1 integral production, also in the protection range of the invention.On described support 11, transmission device 2 is installed, one end of described transmission device 2 for being connected with described auxiliary switch 3, the other end is for contacting cooperation with breaker main shaft.Breaker main shaft refers to the motion of drive moving contact, thereby realizes the rotating shaft of opening and closing movement with fixed contact, and is positioned at the inside of described housing 1.Described transmission device 2 comprises axis 21, fork 23, connecting rod 25, lever 24 and extension spring 27, described axis 21 is arranged on described support 11 rotationally, described fork 23 is sheathed and be fixed on one end of axis 21 and contact cooperation with breaker main shaft, one end of the extension of the other end of axis 21 and described connecting rod 25 is hinged, one end of the other end of connecting rod 25 and described lever 24 is hinged, the other end of lever 24 connects one end of extension spring 27, the other end of extension spring 27 connects the end 311 of the swinging end 31 of described auxiliary switch 3, described lever 24 is also arranged on described support 11 rotationally.
Further, described transmission device 2 also comprises a back-moving spring 22, and this back-moving spring 22 is set on axis 21, and one end is resisted against on described support 11, and the other end is resisted against on described fork 23.This back-moving spring 22 provides restoring force can reset to transmission device 2 time.Certainly not necessarily, because breaker main shaft can provide restoring force, the restoring force that therefore this back-moving spring 22 provides is a kind of effect of reinforcement to this kind of restoring force.
Further, described fork 23 can also form by integral production with described axis 21.
Further, described support 11 is provided with a sidewall, described sidewall is provided with the first hub setting hole 111, described support 11 also comprises a mounting bracket 115, on described mounting bracket 115, offer the second pivot hole 1151, the two ends of described axis 21 are arranged on respectively in described the first hub setting hole 111 and the second hub setting hole 1151 rotationally.Described mounting bracket 115 is by being opened in installing hole 113 the removably connecting by securing member realization and support 11 on support 11.Owing to having had and the dismountable mounting bracket 115 of support 11, thereby in the time that axis 21 is installed, can first carries out after the installation of axis 21, then carry out the installation of mounting bracket 115, make the installation of axis 21 more convenient.
Further, described fork 23 inside are provided with and the corresponding endoporus of axis 21 profile, can realize reliably both synchronous rotations.Preferably, the endoporus of described fork 23 is hexagon, and described axis 21 profiles are hexagon.Swing arm 231 on fork 23 can probe into the hole 114 that is preset on support 11 and realize and the cooperation that contacts of breaker main shaft.This contact cooperation refers to that after breaker main shaft rotates, can stir described swing arm 231 moves back and forth.
Further, described lever 24 is arranged in the 3rd hub setting hole 112 on described support 11 rotationally by bearing pin 26, and limits described bearing pin 26 by jump ring 261.
Claims (9)
1.
a kind of transmission device of auxiliary switch for circuit breaker, described circuit breaker comprises housing (1), one end of described housing (1) is provided with auxiliary switch (3), support (11) is also installed on housing (1), on described support (11), transmission device (2) is installed, described transmission device (2) one end connects auxiliary switch (3), the other end is coordinated by the breaker main shaft contact that is positioned at housing 1 inside, it is characterized in that: described transmission device (2) comprises axis (21), fork (23), connecting rod (25), lever (24) and extension spring (27), described axis (21) and described lever (24) are all arranged on described support (11) rotationally, described fork (23) is fixed on one end of axis (21) and contacts cooperation with breaker main shaft, one end of the extension of the other end of axis (21) and described connecting rod (25) is hinged, one end of the other end of connecting rod (25) and described lever (24) is hinged, the other end of lever (24) connects one end of extension spring (27), the other end of extension spring (27) connects the end (311) of the swinging end (31) of described auxiliary switch (3).
2.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, it is characterized in that described transmission device (2) also comprises a back-moving spring (22), this back-moving spring (22) is set on axis (21), and it is upper that one end is resisted against described support (11), and the other end is resisted against on described fork (23).
3.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, it is characterized in that described support (11) is provided with a sidewall, described sidewall is provided with the first hub setting hole (111), described support (11) also comprises a mounting bracket (115), on described mounting bracket (115), offer the second pivot hole (1151), the two ends of described axis (21) are arranged on respectively in described the first hub setting hole (111) and the second hub setting hole (1151) rotationally.
4.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, is characterized in that described fork (23) inside is provided with and the corresponding endoporus of axis (21) profile.
5.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 4, is characterized in that the endoporus of described fork (23) is hexagon, and described axis (21) profile is hexagon.
6.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, is formed with the swing arm (231) coordinating for contacting with described breaker main shaft on the fork (23) described in it is characterized in that.
7.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, it is characterized in that described lever (24) is arranged on described support (11) rotationally by bearing pin (26) upper, and limit described bearing pin (26) by jump ring (261).
8.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, is characterized in that described fork (23) and described axis (21) integral production form.
9.
the transmission device of a kind of auxiliary switch for circuit breaker according to claim 1, is characterized in that described support (11) and housing (1) integral production form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870074.1U CN203659766U (en) | 2013-12-27 | 2013-12-27 | Transmission device for circuit breaker auxiliary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320870074.1U CN203659766U (en) | 2013-12-27 | 2013-12-27 | Transmission device for circuit breaker auxiliary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203659766U true CN203659766U (en) | 2014-06-18 |
Family
ID=50926127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320870074.1U Expired - Lifetime CN203659766U (en) | 2013-12-27 | 2013-12-27 | Transmission device for circuit breaker auxiliary switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203659766U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679615A (en) * | 2016-03-09 | 2016-06-15 | 国网河北省电力公司检修分公司 | Spring transmission based circuit breaker auxiliary contact conversion apparatus and circuit breaker control loop formed by same |
| CN105702533A (en) * | 2016-03-09 | 2016-06-22 | 国网河北省电力公司检修分公司 | Breaker control circuit design method capable of realizing bidirectional supervision function for control circuit of breaker |
-
2013
- 2013-12-27 CN CN201320870074.1U patent/CN203659766U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679615A (en) * | 2016-03-09 | 2016-06-15 | 国网河北省电力公司检修分公司 | Spring transmission based circuit breaker auxiliary contact conversion apparatus and circuit breaker control loop formed by same |
| CN105702533A (en) * | 2016-03-09 | 2016-06-22 | 国网河北省电力公司检修分公司 | Breaker control circuit design method capable of realizing bidirectional supervision function for control circuit of breaker |
| CN105702533B (en) * | 2016-03-09 | 2018-07-27 | 国网河北省电力公司检修分公司 | A kind of breaker control circuit design method that can realize the two-way monitoring of breaker control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |