CN103527670B - With the break of front outage device - Google Patents
With the break of front outage device Download PDFInfo
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- CN103527670B CN103527670B CN201310495753.XA CN201310495753A CN103527670B CN 103527670 B CN103527670 B CN 103527670B CN 201310495753 A CN201310495753 A CN 201310495753A CN 103527670 B CN103527670 B CN 103527670B
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- cam
- sensitive switch
- salient point
- controller
- motor
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of break with front outage device, comprise casing, motor and controller, casing is provided with overhead cam, lower cam, upper sensitive switch and lower sensitive switch, on, lower cam is respectively equipped with, lower salient point, on, lower sensitive switch is respectively equipped with, lower fine motion moving contact, also be provided with a front outage device, comprise the controller sensitive switch of the signal power supply of connection control device, and control the preposition power-off cam of this controller sensitive switch conducting and disconnection, this preposition power-off cam be provided with preposition salient point can epirelief tap encounter on touch fine motion moving contact before fine motion moving contact and make this controller send motor in advance by power-off signal to controller one signal.The break of this band front outage device can, when motor limit switch lost efficacy, prevent outer tube from departing from, protection motor and client's board, improves quality and the working life of product, has also ensured the safety of user, and fundamentally eliminated potential safety hazard.
Description
Technical field
The present invention relates to a kind of break, particularly relate to a kind of break with front outage device, be mainly used on the lifting screwed pipe of lift.
Background technique
Break has the device making moving element (or movable machinery) deceleration, stop or keeping the functions such as halted state, is commonly called as brake, lock.At present, break on the lifting screwed pipe of lift is primarily of compositions such as frame processed, brake component and Effectors, as shown in Figure 1, its brake component comprises overhead cam 1, lower cam 2, upper sensitive switch 10 and lower sensitive switch 20, upper sensitive switch 10 is placed in the top of lower sensitive switch 20 and is electrically connected forward electrode and the negative sense electrode of primary power supply respectively, the conducting of primary power supply and both positive and negative polarity switch the clockwise and anticlockwise action that can control motor, thus control outwards and inwardly rotating to realize its lifting function of lifting screw.If but load is excessive, can instantaneous large-current be caused and make sensitive switch cannot power-off, namely losing efficacy, like this, lifting screwed pipe will outwards rotate always, thus causes lifting screw to depart from, damage motor and board, severe patient may cause security incident, so there is serious potential safety hazard.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of break with front outage device, can when upper sensitive switch lose efficacy, also can available protecting lifting screw, avoid it to depart from, protection motor and board.
The present invention in order to the technological scheme solving its technical problem and adopt is: a kind of break with front outage device, comprise casing, for driving the motor of the lifting screw clockwise and anticlockwise of lift and controlling the controller of described motor, described casing is provided with overhead cam, lower cam, upper sensitive switch and lower sensitive switch, described overhead cam and lower cam are respectively equipped with salient point and lower salient point, described upper sensitive switch and lower sensitive switch are respectively equipped with fine motion moving contact and lower fine motion moving contact, on the forward electrode that on this, sensitive switch and lower sensitive switch are connected to motor primary power supply and negative sense electrode, described motor can drive described overhead cam and lower cam to rotate, upper salient point when this overhead cam and lower cam rotate on it and lower salient point can touch upper fine motion contact on described upper sensitive switch and lower sensitive switch and lower fine motion moving contact respectively to control the power-off of described motor and to turn to (motor power-off and turn to realize the travel limiting function of lifting screw), also be provided with a front outage device, this front outage device comprises the controller sensitive switch of the signal power supply connecting described controller, and control the preposition power-off cam of this controller sensitive switch conducting and disconnection, this preposition power-off cam be provided with preposition salient point can the epirelief of described overhead cam tap encounter described on sensitive switch upper fine motion moving contact before touch described controller sensitive switch fine motion moving contact give described controller one signal make this controller send motor in advance by power-off signal.
As a further improvement on the present invention, described preposition power-off cam, overhead cam and lower cam are sheathed in a rotating shaft successively from top to bottom.
As a further improvement on the present invention, described upper salient point, lower salient point, preposition salient point are fan-shaped along the cross section of described rotating shaft.
As a further improvement on the present invention, the preposition salient point of described preposition power-off cam has two touching faces, and these two touching faces lay respectively at the upper salient point both sides of described overhead cam.
The invention has the beneficial effects as follows: after having filled front outage device on the brake, when motor running is to high point, if upper sensitive switch lost efficacy, motor remains in operation, front outage device running is to controller sensitive switch place, make controller power-off, motor shuts down, even if ensure that when motor limit switch (upper sensitive switch) lost efficacy, also motor outer tube obscission can not be caused, protect lifting motor and client's board further, improve quality and the working life of product, also the safety of user has been ensured, fundamentally eliminate potential safety hazard.
Accompanying drawing explanation
Fig. 1 is existing brake structural schematic diagram;
Fig. 2 is one of structural representation of the present invention;
Fig. 3 is structural representation two of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---overhead cam 2---lower cam
10---upper sensitive switch 20---lower sensitive switch
11---upper salient point 21---lower salient point
101---upper fine motion moving contact 201---lower fine motion moving contact
3---preposition power-off cam 30---controller sensitive switch
31---preposition salient point 301---fine motion moving contact
4---rotating shaft 100---casing
311---touching face
Embodiment
By reference to the accompanying drawings, elaborate to the present invention, but protection scope of the present invention is not limited to following embodiment, the simple equivalence namely in every case done with the present patent application the scope of the claims and description changes and modifies, and all still belongs within patent covering scope of the present invention.
A kind of break with front outage device, as Fig. 2, shown in 3, comprise casing 100, for driving the motor of the lifting screw clockwise and anticlockwise of lift and controlling the controller of described motor, described casing 100 is provided with overhead cam 1, lower cam 2, upper sensitive switch 10 and lower sensitive switch 20, described overhead cam and lower cam are respectively equipped with salient point 11 and lower salient point 21, described upper sensitive switch and lower sensitive switch are respectively equipped with fine motion moving contact 101 and lower fine motion moving contact 201, on the forward electrode that on this, sensitive switch and lower sensitive switch are connected to motor primary power supply and negative sense electrode, described motor can drive described overhead cam and lower cam to rotate, upper salient point when this overhead cam and lower cam rotate on it and lower salient point can touch upper fine motion contact on described upper sensitive switch and lower sensitive switch and lower fine motion moving contact respectively to control the power-off of described motor and to turn to (motor power-off and turn to realize the travel limiting function of lifting screw), this break is also provided with a front outage device, this front outage device comprises the controller sensitive switch 30 of the signal power supply connecting described controller, and control the preposition power-off cam 3 of this controller sensitive switch conducting and disconnection, this preposition power-off cam be provided with preposition salient point 31 can the epirelief of described overhead cam tap encounter described on sensitive switch upper fine motion moving contact before touch described controller sensitive switch fine motion moving contact 301 make this controller send motor in advance by power-off signal to described controller one signal.
During work, before the upper salient point of overhead cam does not touch sensitive switch, the fine motion moving contact 301 that the preposition salient point 31 on the preposition power-off cam of front outage device touches controller sensitive switch 30 in advance makes this controller send motor in advance by power-off signal to controller one signal.Like this, when motor movement is to high point, if upper sensitive switch lost efficacy, motor remained in operation, but the loop of stopping power supply of control gear is first driven, so motor still can shut down.Therefore, even if when motor limit switch (upper sensitive switch) lost efficacy, motor outer tube break-off also can not be caused; protect motor and board safety further; quality and the use reliability of product are provided, have also ensured the safety of user, and fundamentally eliminated potential safety hazard.
Preferably, described preposition power-off cam, overhead cam and lower cam are sheathed in a rotating shaft 4 successively from top to bottom.During work, motor driving rotating shaft rotates, and realizes the rotation of three cam bodies, thus drives the salient point on it to rotate, and then realizes the touch-control to the moving contact of three sensitive switches, finally realizes the control of the stopping of motor.
Preferably, described upper salient point, lower salient point, preposition salient point are fan-shaped along the cross section of described rotating shaft.
Preferably, the preposition salient point of described preposition power-off cam has two touching faces 311, and these two touching faces lay respectively at the upper salient point both sides of described overhead cam.
Claims (4)
1. the break with front outage device, comprise casing (100), for driving the motor of the lifting screw clockwise and anticlockwise of lift and controlling the controller of described motor, described casing (100) is provided with overhead cam (1), lower cam (2), upper sensitive switch (10) and lower sensitive switch (20), described overhead cam is provided with salient point (11), and described lower cam is provided with lower salient point (21), described upper sensitive switch is provided with fine motion moving contact (101), and described lower sensitive switch is provided with lower fine motion moving contact (201), on this, sensitive switch is connected on the forward electrode of motor primary power supply, and this lower sensitive switch is connected on the negative sense electrode of motor primary power supply, described motor can drive described overhead cam and lower cam to rotate, upper salient point when this overhead cam rotates on it can touch the upper fine motion moving contact of described upper sensitive switch, and the lower salient point of this lower cam when rotating on it can touch the lower fine motion moving contact of described lower sensitive switch, to control the power-off of described motor and to turn to, it is characterized in that: be also provided with a front outage device, this front outage device comprises the controller sensitive switch (30) of the signal power supply connecting described controller, and control the preposition power-off cam (3) of this controller sensitive switch conducting and disconnection, this preposition power-off cam be provided with preposition salient point (31) can the epirelief of described overhead cam tap encounter described on sensitive switch upper fine motion moving contact before touch described controller sensitive switch fine motion moving contact (301) make this controller send motor in advance by power-off signal to described controller one signal.
2. the break of band front outage device according to claim 1, is characterized in that: described preposition power-off cam, overhead cam and lower cam are sheathed in a rotating shaft (4) successively from top to bottom.
3. the break of band front outage device according to claim 2, is characterized in that: described upper salient point, lower salient point, preposition salient point are fan-shaped along the cross section of described rotating shaft.
4. the break of band front outage device according to any one of claim 1 to 3, it is characterized in that: the preposition salient point of described preposition power-off cam has two touching faces (311), and these two touching faces lay respectively at the upper salient point both sides of described overhead cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310495753.XA CN103527670B (en) | 2013-10-18 | 2013-10-18 | With the break of front outage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310495753.XA CN103527670B (en) | 2013-10-18 | 2013-10-18 | With the break of front outage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103527670A CN103527670A (en) | 2014-01-22 |
| CN103527670B true CN103527670B (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310495753.XA Active CN103527670B (en) | 2013-10-18 | 2013-10-18 | With the break of front outage device |
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| Country | Link |
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| CN (1) | CN103527670B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123570B (en) * | 2017-06-28 | 2018-09-11 | 国网山东省电力公司莱阳市供电公司 | A kind of electric power believes general auto-power-off device and automatic power off method |
| CN115440545B (en) * | 2022-09-23 | 2024-06-21 | 国网山东省电力公司青岛市即墨区供电公司 | Front power-off device for power maintenance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069463A (en) * | 1991-07-08 | 1993-03-03 | 塞列斯控股有限公司 | The fail-safe brake that is used for elevator drive |
| CN2150182Y (en) * | 1993-02-05 | 1993-12-22 | 张三吉 | Auxiliary power apparatus for lifter of power cut |
| DE10305590A1 (en) * | 2003-02-05 | 2004-08-26 | Stromag Ag | Electromagnetic spring pressure brake for theatre curtains, screens or moving equipment, and elevators has hand-operated ventilators |
| JP4040379B2 (en) * | 2002-05-14 | 2008-01-30 | ナブテスコ株式会社 | Electromagnetic brake device |
| CN203548628U (en) * | 2013-10-18 | 2014-04-16 | 捷世达电机（昆山）有限公司 | Brake with front-mounted power interruption device |
-
2013
- 2013-10-18 CN CN201310495753.XA patent/CN103527670B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069463A (en) * | 1991-07-08 | 1993-03-03 | 塞列斯控股有限公司 | The fail-safe brake that is used for elevator drive |
| CN2150182Y (en) * | 1993-02-05 | 1993-12-22 | 张三吉 | Auxiliary power apparatus for lifter of power cut |
| JP4040379B2 (en) * | 2002-05-14 | 2008-01-30 | ナブテスコ株式会社 | Electromagnetic brake device |
| DE10305590A1 (en) * | 2003-02-05 | 2004-08-26 | Stromag Ag | Electromagnetic spring pressure brake for theatre curtains, screens or moving equipment, and elevators has hand-operated ventilators |
| CN203548628U (en) * | 2013-10-18 | 2014-04-16 | 捷世达电机（昆山）有限公司 | Brake with front-mounted power interruption device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103527670A (en) | 2014-01-22 |
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