CN103700534A - Transitional motion three-position isolating switch over-position protection device - Google Patents
Transitional motion three-position isolating switch over-position protection device Download PDFInfo
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- CN103700534A CN103700534A CN201310649264.5A CN201310649264A CN103700534A CN 103700534 A CN103700534 A CN 103700534A CN 201310649264 A CN201310649264 A CN 201310649264A CN 103700534 A CN103700534 A CN 103700534A
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Abstract
The invention relates to power transmission and distribution equipment, and in particular relates to a transitional motion three-position isolating switch over-position protection device. An electric operation mechanism and a screw rod mechanism driven by the electric operation mechanism are arranged on a frame; the end part of the screw rod shaft of the screw rod mechanism is used for driving an auxiliary screw rod through a gear transmission mechanism; a transitional motion nut is arranged on the auxiliary screw rod in a matching manner; a section of limiting rod is connected with one side of the transitional motion nut; an outer bracket is arranged on the outer side of the frame; a guide groove parallel to the auxiliary screw rod is formed in the outer bracket; the limiting rod is inserted into the guide groove and is limited by the guide groove, so that the limiting rod can only move forwards and backwards and cannot rotate; travel switches which can be triggered by the transitional motion rod are respectively arranged in the front and rear limiting positions where the limiting rod moves; the travel switches are connected with the control circuit of the electric operation mechanism. The device is simple in structure and convenient to manufacture and mount, the rotation travel of the screw rod is limited through the travel switches, a moving contact is effectively prevented from over-position in action, and the operation reliability of the switches is improved.
Description
Technical field
The present invention relates to equipment for power transmission and distribution, specifically a kind of straight moving tri-station isolating switch is crossed a protective device.
Background technology
Direct-acting three-working-position isolation in existing equipment for power transmission and distribution generally includes and is arranged on the screw mechanism that framework Shang Bingyou motor operation mechanism drives, framework inner side is provided with the front fixed contact being coaxially arranged in order with leading screw, middle fixed contact and rear fixed contact, screw mechanism can drive a moving contact to move axially between each fixed contact, realizes combined floodgate, separating brake and three stations of ground connection.During motor-operating mechanism real work, if the sensor failure of control section, after moving contact puts in place, leading screw can not stop operating, the moving contact motion position that will overstep the extreme limit, and leading screw there will be stuck phenomenon, fracture damage, thereby functional reliability is poor.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and can prevent that direct-acting three-working-position isolation moving contact from moving position, improves the straight moving tri-station isolating switch of functional reliability and cross a protective device.
Straight moving tri-station isolating switch of the present invention is crossed a protective device and is included framework, motor-operating mechanism is installed and by the screw mechanism of its driving on framework, framework inner side is provided with the front fixed contact being coaxially arranged in order with leading screw, middle fixed contact and rear fixed contact, screw mechanism can drive a moving contact to move axially between each fixed contact, realizes combined floodgate, separating brake and three stations of ground connection; The lead screw shaft end of described screw mechanism is stretched out framework outside and is driven an auxiliary leading screw parallel with lead screw shaft by gear drive; On described auxiliary leading screw, coordinate a straight moving nut is installed, directly a side of moving nut is connected with one section of gag lever post; Described framework outside is also provided with a support arm, is provided with the gathering sill parallel with auxiliary leading screw on support arm, and described gag lever post is inserted in gathering sill and limits it by gathering sill and only can move forward and backward and can not rotate; The forward and backward extreme position that described gag lever post moves is respectively arranged with the travel switch that can be touched by carriage release lever, and described travel switch is connected in the control circuit of motor-operating mechanism.
Described support arm comprises the front apron that at least one side plate parallel with auxiliary leading screw is vertical with auxiliary leading screw with, and described gathering sill is opened on side plate, and the two ends of described auxiliary leading screw are arranged on respectively on framework and front apron.
The present invention is simple in structure, manufacture and easy for installation, and it carries out spacing to the rotating distance of leading screw by travel switch, effectively prevented that the action of moving contact from crossing position, has improved the operational reliability of switch.
Accompanying drawing explanation
Fig. 1 is the perspective view of a viewing angle of this practical embodiment;
Fig. 2 is the perspective view of another viewing angle of the embodiment of the present invention;
Fig. 3 is structural representation after embodiment of the present invention support arm is removed.
Embodiment
As shown in the figure, this directly moving tri-station isolating switch cross a protective device and include framework 1, motor-operating mechanism 2 is installed and by the screw mechanism 3 of its driving on framework, framework inner side is provided with front fixed contact 4, middle fixed contact 5 and the rear fixed contact 6 being coaxially arranged in order with leading screw, screw mechanism can drive a moving contact 7 to move axially between each fixed contact, realizes combined floodgate, separating brake and three stations of ground connection; The lead screw shaft end of described screw mechanism 3 is stretched out framework outside and is driven an auxiliary leading screw 9 parallel with lead screw shaft by gear drive 8; On described auxiliary leading screw 9, coordinate a straight moving nut 10 is installed, directly a side of moving nut is connected with one section of gag lever post 11; Described framework 1 outside is also provided with a support arm 12, is provided with the gathering sill 13 parallel with auxiliary leading screw 9 on support arm, and described gag lever post 11 is inserted in gathering sill 13 and limits it by gathering sill and only can move forward and backward and can not rotate; The forward and backward extreme position that described gag lever post 11 moves is respectively arranged with the travel switch 14 that can be touched by carriage release lever, and described travel switch 14 is connected in the control circuit of motor-operating mechanism.Described support arm 12 comprises the front apron 16 that at least one side plate parallel with auxiliary leading screw 15 is vertical with auxiliary leading screw with, and described gathering sill 13 is opened on side plate 15, and the two ends of described auxiliary leading screw 9 are arranged on respectively on framework 1 and front apron 16.
Claims (2)
1. a straight moving tri-station isolating switch is crossed a protective device, include framework (1), motor-operating mechanism (2) is installed and by the screw mechanism (3) of its driving on framework, framework inner side is provided with the front fixed contact (4) being coaxially arranged in order with leading screw, middle fixed contact (5) and rear fixed contact (6), screw mechanism can drive a moving contact (7) to move axially between each fixed contact, realizes combined floodgate, separating brake and three stations of ground connection; It is characterized in that: the lead screw shaft end of described screw mechanism (3) is stretched out framework outside and driven an auxiliary leading screw (9) parallel with lead screw shaft by gear drive (8); Upper cooperation of described auxiliary leading screw (9) is provided with a straight moving nut (10), and directly a side of moving nut is connected with one section of gag lever post (11); Described framework (1) outside is also provided with a support arm (12), on support arm, be provided with the gathering sill (13) parallel with auxiliary leading screw (9), described gag lever post (11) is inserted in gathering sill (13) and limits it by gathering sill and only can move forward and backward and can not rotate; The mobile forward and backward extreme position of described gag lever post (11) is respectively arranged with the travel switch (14) that can be touched by carriage release lever, and described travel switch 14 is connected in the control circuit of motor-operating mechanism.
2. straight moving tri-station isolating switch according to claim 1 is crossed a protective device; it is characterized in that: described support arm (12) comprises the front apron (16) that at least one side plate parallel with auxiliary leading screw (15) is vertical with auxiliary leading screw with; described gathering sill (13) is opened at side plate (15) upper, and the two ends of described auxiliary leading screw (9) are arranged on respectively on framework (1) and front apron (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649264.5A CN103700534A (en) | 2013-12-06 | 2013-12-06 | Transitional motion three-position isolating switch over-position protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649264.5A CN103700534A (en) | 2013-12-06 | 2013-12-06 | Transitional motion three-position isolating switch over-position protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103700534A true CN103700534A (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310649264.5A Pending CN103700534A (en) | 2013-12-06 | 2013-12-06 | Transitional motion three-position isolating switch over-position protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103700534A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615645A (en) * | 2018-07-16 | 2018-10-02 | 中国能源工程（海门）昌泰电气有限公司 | A kind of three station of Direct Action Type isolation operating mechanism and its control method using special-shaped axis positioning |
| CN113871244A (en) * | 2021-08-13 | 2021-12-31 | 天津平高智能电气有限公司 | Three-station operating mechanism and three-station switch |
| CN114743823A (en) * | 2021-01-07 | 2022-07-12 | 天津平高智能电气有限公司 | Three-position switch operating mechanism |
Citations (5)
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| DE4222365A1 (en) * | 1992-07-08 | 1994-01-13 | Vdo Schindling | Actuator element for door lock of vehicle central locking - has linear element displaced by electric motor via gear and lead-screw with limit switch to signal on=off states |
| CN201514866U (en) * | 2009-09-24 | 2010-06-23 | 厦门华电开关有限公司 | Electrically-operated mechanism for electric switch device |
| CN201956212U (en) * | 2011-01-06 | 2011-08-31 | 浙江启门科技有限公司 | Travel switch mechanism of a translation-door opening machine |
| CN202352575U (en) * | 2011-11-22 | 2012-07-25 | 沈阳昊诚电气股份有限公司 | Solid insulation isolating switch |
| CN203607314U (en) * | 2013-12-06 | 2014-05-21 | 江苏大全长江电器股份有限公司 | Over-position protection device for direct-acting three-position isolating switch |
-
2013
- 2013-12-06 CN CN201310649264.5A patent/CN103700534A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4222365A1 (en) * | 1992-07-08 | 1994-01-13 | Vdo Schindling | Actuator element for door lock of vehicle central locking - has linear element displaced by electric motor via gear and lead-screw with limit switch to signal on=off states |
| CN201514866U (en) * | 2009-09-24 | 2010-06-23 | 厦门华电开关有限公司 | Electrically-operated mechanism for electric switch device |
| CN201956212U (en) * | 2011-01-06 | 2011-08-31 | 浙江启门科技有限公司 | Travel switch mechanism of a translation-door opening machine |
| CN202352575U (en) * | 2011-11-22 | 2012-07-25 | 沈阳昊诚电气股份有限公司 | Solid insulation isolating switch |
| CN203607314U (en) * | 2013-12-06 | 2014-05-21 | 江苏大全长江电器股份有限公司 | Over-position protection device for direct-acting three-position isolating switch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615645A (en) * | 2018-07-16 | 2018-10-02 | 中国能源工程（海门）昌泰电气有限公司 | A kind of three station of Direct Action Type isolation operating mechanism and its control method using special-shaped axis positioning |
| CN108615645B (en) * | 2018-07-16 | 2023-08-01 | 中国能源工程（海门）昌泰电气有限公司 | Direct-acting type three-station isolation operating mechanism positioned by special-shaped shaft and control method thereof |
| CN114743823A (en) * | 2021-01-07 | 2022-07-12 | 天津平高智能电气有限公司 | Three-position switch operating mechanism |
| CN114743823B (en) * | 2021-01-07 | 2023-09-01 | 天津平高智能电气有限公司 | Three-station switch operating mechanism |
| CN113871244A (en) * | 2021-08-13 | 2021-12-31 | 天津平高智能电气有限公司 | Three-station operating mechanism and three-station switch |
| CN113871244B (en) * | 2021-08-13 | 2023-09-01 | 天津平高智能电气有限公司 | Three-station operating mechanism and three-station switch |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140402 |