CN201376856Y - Two-stage braking electric block - Google Patents
Two-stage braking electric block Download PDFInfo
- Publication number
- CN201376856Y CN201376856Y CN200920142358U CN200920142358U CN201376856Y CN 201376856 Y CN201376856 Y CN 201376856Y CN 200920142358 U CN200920142358 U CN 200920142358U CN 200920142358 U CN200920142358 U CN 200920142358U CN 201376856 Y CN201376856 Y CN 201376856Y
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- Prior art keywords
- brake
- braking
- electric block
- motor
- reel
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- Expired - Fee Related
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Abstract
The utility model discloses a two-stage braking electric block which comprises a motor brake, a speed reducing mechanism, a gear, a reel and an inner friction plate fixed by a bolt, wherein an auxiliary brake which is used to brake a scroll shaft and is controlled and driven by a motor brake failure signal in the motor brake is additionally arranged on a low speed shaft in the reel. The two-stage braking electric block can send out brake information to enable an electromagnetic brake or a power hydraulic brake to generate brake since the brake for braking the scroll shaft is additionally arranged on the low speed shaft in the reel of the electric block and a rotation speed sensor is further arranged, thereby the electric block is protected, and compared with the prior art, the electric block has higher braking performance and higher braking reliability.
Description
Technical field
The utility model relates to a kind of hoisting crane electric block, particularly a kind of two stage shut electric block of implementing the low speed braking in reel.
Background technology
Existing electric block is to rely on the braking of motor tail end list, in case this brake failure will have an accident.
Summary of the invention
The purpose of this utility model is: overcome conventional electric cucurbit weak point, on original electric block basis, increase one-level low speed brake equipment, a kind of two stage shut electric block of simple in structure, reasonable in design, good braking effect is provided.
The purpose of this utility model realizes by following scheme: it comprises an electromotor brake, speed reduction gearing, gear, reel, by the internal friction sheet and the controller of bolt, sets up one on the slow-speed shaft in reel and is used for braking scroll bar and by the additional brake of the motor braking disablement signal controlling and driving of electromotor brake.
The utility model is the rotating speed by the rotating speed electric inductor prototype gear of motor braking disablement signal, and controller connects by circuit and controls the rotating speed electric inductor.
Additional brake described in the utility model is a magnet stopper, comprise driver train, brake actuator two large divisions, driver train is a motor, brake actuator is formed by the retracing spring of bolted brake rim and return by electromagnet, with electromagnet, and the internal friction sheet is set in the brake rim.
Additional brake described in the utility model is an electrohydraulic brake, comprise driver train, brake actuator two large divisions, driver train is a motor, and braking is carried out dish-shaped-spring stack, formed by bolted brake rim, and the internal friction sheet is set in the brake rim.
The utility model is owing to set up the drg of a brake drum axle again on the slow-speed shaft in the reel of electric block; but also the rotating speed inductor is housed; when the induction rotating speed surpasses rated speed of rotation 120%; can send braking information; make magnet stopper or electrohydraulic brake produce braking; thereby the protection electric block, thus this electric block and existing technology relatively deceleration and stopping performance is higher, the braking reliability is higher.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the utility model embodiment 2 structural representations.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is further described.
Embodiment 1
Referring to Fig. 1: present embodiment comprises electromotor brake, speed reduction gearing 2, gear 4,13, reel 5, by bolt 6 fixing internal friction sheet 7 and controller, sets up one on the slow-speed shaft 12 reel 5 in and is used for braking scroll bar and by the additional brake of the motor 1 braking failure signal control driving of electromotor brake.Additional brake is a magnet stopper, comprises driver train, brake actuator two large divisions, and driver train is a motor 1, brake actuator by fixing electromagnet 8, with electromagnet 8 by bolt 11 bonded assembly brake rims 9.The rotating speed of the rotating speed electric inductor prototype gear by the motor braking disablement signal, controller connect by circuit and control the rotating speed electric inductor.
The working process of present embodiment: under conventional state, the electromagnet 8 of magnet stopper produces magnetic effect, 10 compressions of absorption retracing spring, and brake rim 9 unclamps, and rotates with transmission shaft; When the needs emergency braking, electromagnet 8 magnetic effects disappear, retracing spring 10 returns, compress brake rim 9, it is stopped operating, also stop operating with the spline of internal friction sheet 7 gears mesh in the brake rim 9, driving turning cylinder also stops, the gear 13 that rotates together with reel 5 on the turning cylinder stops simultaneously, and reel 5 also promptly stops, thereby realizes the purpose of braking.
Embodiment 2:
Referring to Fig. 2: present embodiment comprises electromotor brake, speed reduction gearing 2, gear 4,13, reel 5, by bolt 6 fixing internal friction sheet 7 and controller, sets up one on the slow-speed shaft 12 reel 5 in and is used for braking scroll bar and by the additional brake of the motor 1 braking failure signal control driving of electromotor brake.Additional brake is an electrohydraulic brake, comprises driver train, brake actuator two large divisions, and driver train is a motor 1, and braking is carried out dish-shaped-spring stack 12, formed by bolt 11 bonded assembly brake rims 9, and internal friction sheet 7 is set in the brake rim 9.
Electrohydraulic brake is next in the non-braking mode of energising to be that dish-shaped-spring stack is compressed, and brake rim 9 unclamps, and rotates with transmission shaft, when the needs emergency braking, send information by inductor, the dish-shaped-spring stack return compresses brake rim 9, it is stopped operating, so with brake rim 9 in the spline of internal friction sheet 7 gears mesh also stop operating, drive turning cylinder and also stop, on the turning cylinder and the gear 4 that rotates together of reel 5 stop, reel 5 stops, and braking is normally implemented.
The principle of work of present embodiment is: when electrohydraulic brake then is the motor braking inefficacy, the rotating speed electric inductor sends power-off brake information, the dish-shaped-spring stack return, compress brake rim 9, it is stopped operating, also stop operating with the spline of internal friction sheet 7 gears mesh in the brake rim 9, driving turning cylinder also stops, the gear 4 that rotates together with reel 5 on the turning cylinder stops so, thereby reel 5 stops, and braking is normally implemented; Under the non-braking mode of energising, dish-shaped-spring stack is compressed, and brake rim 9 unclamps, and rotates with transmission shaft.
Claims (4)
1, a kind of two stage shut electric block, comprise an electromotor brake, speed reduction gearing (2), gear (4,13), reel (5) and, it is characterized in that: set up one on the slow-speed shaft (12) reel (5) in and be used for braking scroll bar and by the additional brake of motor (1) the braking failure signal control driving of electromotor brake by the fixing internal friction sheet (7) of bolt (6).
2, two stage shut electric block according to claim 1 is characterized in that: also comprise a rotating speed electric inductor, the rotating speed of the rotating speed electric inductor prototype gear (13) by the motor braking disablement signal.
3, two stage shut electric block according to claim 1 and 2, it is characterized in that: additional brake is a magnet stopper, comprise driver train, brake actuator two large divisions, driver train is motor (1), brake actuator is formed by the retracing spring (10) of bolt (11) bonded assembly brake rim (9) and return by electromagnet (8), with electromagnet, and internal friction sheet (7) is set in the brake rim (9).
4, two stage shut electric block according to claim 1 and 2, it is characterized in that: additional brake is an electrohydraulic brake, comprise driver train, brake actuator two large divisions, driver train is motor (1), braking is carried out dish-shaped-spring stack (14), is formed by bolt (11) bonded assembly brake rim (9), and internal friction sheet (7) is set in the brake rim (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920142358U CN201376856Y (en) | 2009-04-13 | 2009-04-13 | Two-stage braking electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920142358U CN201376856Y (en) | 2009-04-13 | 2009-04-13 | Two-stage braking electric block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201376856Y true CN201376856Y (en) | 2010-01-06 |
Family
ID=41516957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920142358U Expired - Fee Related CN201376856Y (en) | 2009-04-13 | 2009-04-13 | Two-stage braking electric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201376856Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101849A (en) * | 2012-12-12 | 2013-05-15 | 苏州蓝王机床工具科技有限公司 | Electric hoist |
| CN104192719A (en) * | 2014-07-28 | 2014-12-10 | 河南机电高等专科学校 | Coiling block safety brake device |
| CN111689367A (en) * | 2020-07-16 | 2020-09-22 | 中国工程物理研究院机械制造工艺研究所 | Balance lifting appliance device |
-
2009
- 2009-04-13 CN CN200920142358U patent/CN201376856Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101849A (en) * | 2012-12-12 | 2013-05-15 | 苏州蓝王机床工具科技有限公司 | Electric hoist |
| CN104192719A (en) * | 2014-07-28 | 2014-12-10 | 河南机电高等专科学校 | Coiling block safety brake device |
| CN104192719B (en) * | 2014-07-28 | 2017-04-26 | 河南机电高等专科学校 | Coiling block safety brake device |
| CN111689367A (en) * | 2020-07-16 | 2020-09-22 | 中国工程物理研究院机械制造工艺研究所 | Balance lifting appliance device |
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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: 20100106 Termination date: 20120413 |