CN201324965Y - Gravity shaft falling protection controller - Google Patents
Gravity shaft falling protection controller Download PDFInfo
- Publication number
- CN201324965Y CN201324965Y CNU2008202228328U CN200820222832U CN201324965Y CN 201324965 Y CN201324965 Y CN 201324965Y CN U2008202228328 U CNU2008202228328 U CN U2008202228328U CN 200820222832 U CN200820222832 U CN 200820222832U CN 201324965 Y CN201324965 Y CN 201324965Y
- Authority
- CN
- China
- Prior art keywords
- brake coil
- brake
- falling protection
- power
- gravity shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Stopping Of Electric Motors (AREA)
Abstract
The utility model discloses a gravity shaft falling protection controller which comprises a brake arranged on a driving motor of the gravity shaft, an alternating current (AC) power source and a brake coil control circuit. The brake coil control circuit comprises a direct current (DC) transformer connected with the AC power source, a brake coil connected with the output end of the DC transformer and a spark absorber. The gravity shaft falling protection controller is characterized by further comprising a power failure AC detecting relay connected with the AC power source. A dynamically closed contact corresponding to the relay is arranged in the connecting circuit between the DC power source and the brake coil. The gravity shaft falling protection controller has fast response speed and can achieve the best falling protection effect.
Description
Technical field
The utility model relates to a kind of anti-fall controller of gravity axis when being used for the no back-up source in Digit Control Machine Tool outage back.
Background technology
At present, in the Digit Control Machine Tool machining, gravity axis is vertically moved by screw mandrel/pair of nut drive by drive motors, if run into outside outage suddenly, gravity axis will fall down owing to the gravity effect, thereby cause processing parts to scrap; People had designed the anti-fall controller of gravity axis afterwards, comprise the brake, AC power, the brake coil control circuit that are installed on the gravity axis drive motors, described brake coil control circuit comprises AC power, commutator transformer, the brake coil, the spark absorber that are connected with the commutator transformer output; When unexpected outage, the brake coil outage makes brake embrace the gravity axis drive motors, prevents that drive motors from rotating, and reaches anti-fall purpose; But because the gravity axis drive motors uses AC power, brake coil uses dc source, AC power is faster than the dc source decay during outage, the response time of brake is slower than the excitatory retention time of gravity axis drive motors, make the gravity axis drive motors be difficult to, can't reach best anti-fall effect by timely locking.
The utility model content
The purpose of this utility model is at the deficiency on the prior art, provides a kind of gravity axis anti-fall controller, and it has the fast advantage of response speed, can reach best anti-fall effect.
For achieving the above object, the anti-fall controller of gravity axis of the present utility model, comprise the brake, AC power, the brake coil control circuit that are installed on the gravity axis drive motors, described brake coil control circuit comprises the commutator transformer that is connected with AC power, the brake coil, the spark absorber that are connected with the commutator transformer output, it is characterized in that also comprising that the outage that links to each other with AC power exchanges the detection relay, the moving together contact of this relay correspondence is arranged in the connection line of commutator transformer and brake coil;
During outage, because AC power is faster than the dc source decay, outage exchanges the moving together contact of detection relay prior to the commutator transformer disconnecting circuit, the brake coil outage, the response time of brake is before the excitatory shutoff of gravity axis drive motors, brake locking in time gravity axis drive motors reaches best anti-fall effect.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
The specific embodiment
By shown in Figure 1, the anti-fall controller of this gravity axis, comprise the brake (not shown), AC power V, the brake coil control circuit that are installed on the gravity axis drive motors, the outage that described brake coil control circuit comprises the commutator transformer T that is connected with AC power V, the brake coil L, the spark absorber H that are connected with commutator transformer T output, be connected with AC power V exchanges and detects relay K B, and the moving together contact KB of this relay K B correspondence is arranged in the connection line of commutator transformer T and brake coil L;
During outage, utilize AC power faster than the dc source decay, outage exchanges the moving together contact KB of detection relay prior to commutator transformer T disconnecting circuit, brake coil L outage, the response time of brake is before the excitatory shutoff of gravity axis drive motors, brake locking in time gravity axis drive motors reaches best anti-fall effect.
Claims (1)
1. anti-fall controller of gravity axis, comprise the brake, AC power, the brake coil control circuit that are installed on the gravity axis drive motors, described brake coil control circuit comprises the commutator transformer that is connected with AC power, the brake coil, the spark absorber that are connected with the commutator transformer output, it is characterized in that also comprising that the outage that links to each other with AC power exchanges the detection relay, the moving together contact of this relay correspondence is arranged in the connection line of commutator transformer and brake coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202228328U CN201324965Y (en) | 2008-11-21 | 2008-11-21 | Gravity shaft falling protection controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202228328U CN201324965Y (en) | 2008-11-21 | 2008-11-21 | Gravity shaft falling protection controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201324965Y true CN201324965Y (en) | 2009-10-14 |
Family
ID=41176944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202228328U Expired - Fee Related CN201324965Y (en) | 2008-11-21 | 2008-11-21 | Gravity shaft falling protection controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201324965Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507082A (en) * | 2012-06-28 | 2014-01-15 | 发那科株式会社 | Brake abnormality diagnosis method and brake abnormality diagnosis device |
| CN105785916A (en) * | 2014-12-15 | 2016-07-20 | 上海通用汽车有限公司 | Method and apparatus for protecting gravity shaft dropping of machine tool |
-
2008
- 2008-11-21 CN CNU2008202228328U patent/CN201324965Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507082A (en) * | 2012-06-28 | 2014-01-15 | 发那科株式会社 | Brake abnormality diagnosis method and brake abnormality diagnosis device |
| CN103507082B (en) * | 2012-06-28 | 2014-12-10 | 发那科株式会社 | Brake abnormality diagnosis method and brake abnormality diagnosis device |
| US9021873B2 (en) | 2012-06-28 | 2015-05-05 | Fanuc Corporation | Brake abnormality diagnosis method and brake abnormality diagnosis device |
| CN105785916A (en) * | 2014-12-15 | 2016-07-20 | 上海通用汽车有限公司 | Method and apparatus for protecting gravity shaft dropping of machine tool |
| CN105785916B (en) * | 2014-12-15 | 2019-01-18 | 上海通用汽车有限公司 | The method and apparatus of lathe gravity axis tenesmus protection are provided |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20121121 |