CN201400543Y - Automatic brake protecting device for lifting steel cable reel - Google Patents
Automatic brake protecting device for lifting steel cable reel Download PDFInfo
- Publication number
- CN201400543Y CN201400543Y CN2009201063445U CN200920106344U CN201400543Y CN 201400543 Y CN201400543 Y CN 201400543Y CN 2009201063445 U CN2009201063445 U CN 2009201063445U CN 200920106344 U CN200920106344 U CN 200920106344U CN 201400543 Y CN201400543 Y CN 201400543Y
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- CN
- China
- Prior art keywords
- brake
- reel
- cable reel
- brake disc
- protecting device
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- 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 - Lifetime
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Abstract
The utility model relates to an automatic brake protecting device for lifting a steel cable reel, and provides an automatic brake protecting device for lifting a steel cable reel, aiming at resolvingthe problem that the prior art is complex in structure and large in volume. The automatic brake protecting device for lifting a steel cable reel comprises a brake disc, a brake pin, a traction electromagnet and a spring, wherein a plurality of circular-arc-shaped brake slots are arranged on the brake disc surrounding the circle center of the brake disc, the brake pin is perpendicular to the brakedisc, the diameter of the brake pin matches with the width of each brake slot, the rear end of the brake pin is connected with the traction electromagnet, and the spring is fixed on the traction electromagnet. The automatic brake protecting device with simple structure is mounted on the reel and directly brakes the reel under a condition that the reel stalls, thereby achieving the purpose of secondarily protecting the steel cable. Further, the automatic brake protecting device guarantees safety of a lifted heavy object, and simultaneously adds an effective protection while preventing terribleaccidents.
Description
Technical field
The utility model relates to the protection mechanism of crane lifting cable drum, is specifically related to a kind of autobrake fender guard of hoisting cable reel.
Background technology
The reel of handling machinery hoisting cable, in promoting the weight process, motor links by shaft coupling and retarder, and retarder is direct drive reel lay winding wire ropes again, reaches the purpose that promotes weight.To the stall of reel, one to paying much attention to, and for preventing the stall of reel, generally adopts following three kinds of brake mode in the cable drum lifting process for the lifting carrier:
1, motor braking: in this messenger chain of motor-retarder-reel, adopt motor braking.Brake mode generally adopts friction braking, as friction lining.This kind brake mode, the retarder and the reel of level are in the unprotect state behind the messenger chain.General hoist ceiling crane adopts this kind mode.
2, retarder braking: in this messenger chain of motor-retarder-reel, adopt the retarder braking.Braking method generally adopts the input shaft of brake retarder or the brake wheel on the output shaft, and braking principle also is to adopt the friction-type braking.This protection form is protected than motor braking, take a step forward in safety, but reel still is in the unprotect state.General elevator, lifting means all adopt this kind mode.
3, reel braking: in this messenger chain of motor-retarder-reel, adopt direct brake drum.This protection form is an optimal case in this messenger chain of motor-retarder-reel.The reel brake protection device has various ways at present, as adopting plate disc brake, the brake wheel that perhaps adopts lever amplifying moment brake drum to link.Because reel is the final stage driving device, so moment of torsion is very big, the consequence of bringing is that required lock torque is big, thereby requires the brake equipment bulky, and perhaps complex structure involves great expense.
In a word, because above-mentioned three kinds of brake mode, what all adopt is friction braking, thereby needs to guarantee the contact of friction face, will bring potential safety hazard after the friction face wearing and tearing.If service personnel has carelessness slightly, will cause extremely serious serious accident.
The utility model content
In order to solve the potential safety hazard that the available technology adopting friction braking is brought, the utility model provides a kind of autobrake fender guard of hoisting cable reel, and it adopts the rigidity braking model; directly braking is on reel; and simple in structure, easy to manufacture, highly versatile.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of autobrake fender guard of hoisting cable reel comprises brake disc, banking pin, tractive magnet and spring; Described tractive magnet is fixed on the frame that is connected with the reel support; Be provided with some circular arc breaker slots around the brake disc center of circle on the described brake disc; Described banking pin is perpendicular to brake disc, and the diameter of banking pin matches with the width of breaker slot, and the rear end of banking pin is connected with the slip armature of tractive magnet; One end of described spring is fixed on the tractive magnet shell by spring anchorage bracket; The other end is fixed on the pull bar behind the tractive magnet slip armature.
The bottom surface of above-mentioned breaker slot is a smooth ramp.
The number of above-mentioned breaker slot is 8, is distributed on the brake disc.
Above-mentioned banking pin is provided with brake pin bushing outward, and brake pin bushing is fixed on the reel support, and banking pin can slide in brake pin bushing.
The pull bar rear of above-mentioned tractive magnet is provided with micro-switch.
Above-mentioned micro-switch is fixed on the frame by the micro-switch support.
Compared with prior art, the beneficial effect of technical solutions of the utility model generation is as follows:
The utility model is simple in structure; be installed on the reel; under the situation of reel stall; directly reel is carried out the rigidity braking; thereby reach second protection purpose, this messenger chain actv. of motor-retarder-reel can be protected, guaranteed to mention the safety of weight cable drum; on the pernicious safety misadventure of prevention, added one actv. protection simultaneously.
Description of drawings
Fig. 1 is the utility model integral structure scheme drawing;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the structural representation of brake disc in the utility model;
Fig. 4 is the B-B cutaway view of Fig. 3.
Fig. 5 is the C-C cutaway view of Fig. 3.
Reference numeral:
The 1-reel, the 2-brake disc, the 3-banking pin, the 4-brake pin bushing, the 5-tractive magnet, the 6-spring,
The 7-spring anchorage bracket, the 8-micro-switch, 9-micro-switch support, the 10-breaker slot, the 11-frame,
12-slip armature, the 13-pull bar.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is elaborated.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of autobrake fender guard of hoisting cable reel, comprises brake disc 2, banking pin 3, tractive magnet 5 and spring 6; Described brake disc 2 is with reel 1 coaxial setting and captive joint, and reel 1 can rotate in the axle bed on the support that supports; Described tractive magnet 5 is fixed on the frame 11 that is connected and fixed with the reel support; Described banking pin 3 is perpendicular to brake disc 2, and the rear end of banking pin 3 is connected with the slip armature 12 of tractive magnet 5; Described banking pin 3 can slide in the brake pin bushing 4 that fixes with support; One end of described spring 6 is fixed on by spring anchorage bracket 7 on the shell of tractive magnet 5, and the other end is fixed on the pull bar 13 behind the slip armature 12; Pull bar 13 rears of described tractive magnet 5 are provided with micro-switch 8, and micro-switch 8 is fixed on the frame 11 by micro-switch support 9.
Referring to Fig. 3, Fig. 4 and Fig. 5, be provided with 8 uniform circular arc breaker slots 10 around the brake disc center of circle on the described brake disc 2, the bottom surface of breaker slot 10 is a smooth ramp.
When cable drum promoted weight, rotation had both direction, i.e. clickwise and left-hand revolution.In the utility model, being downward slack rope during clickwise, is the tight rope that makes progress during left-hand revolution.When reel had the tension force of the tight rope that makes progress, at this moment reel insured, because the output torque of motor has been delivered on the drum shaft; And during the downward slack rope of reel, should be braked, guarantee under controlled situation, to open just now braking.
When the reel left-hand revolution makes progress tight rope, the tractive magnet energising, banking pin is extracted in the magnet adhesive.
When the downward slack rope of reel clickwise, course of action is as follows:
1, the instantaneous upwards tight rope of reel stops; 2, tractive magnet energising, the draw untie-sell; 3, banking pin is extracted and is put in place, and pull bar presses off the back micro-switch, allows downward slack rope; 4, the downward slack rope of reel; 5, outage after the reel slack rope puts in place, banking pin automatically resets, and withstands brake disc forward.
If stall condition appears in reel, then to front slide, up to propping up breaker slot fwd retaining wall, need not to recognize the hole can brake reel banking pin along the inclined-plane at the bottom of the breaker slot.Owing to opened 8 uniform breaker slots on the brake disc, so the circumference of reel rotation 1/8 just can be braked.
The above only is preferred embodiment of the present utility model, and not in order to restriction the utility model, common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.
Claims (6)
1, a kind of autobrake fender guard of hoisting cable reel is characterized in that: comprise brake disc, banking pin, tractive magnet and spring; Described tractive magnet is fixed on the frame that is connected with the reel support; Be provided with some circular arc breaker slots around the brake disc center of circle on the described brake disc; Described banking pin is perpendicular to brake disc, and the diameter of banking pin matches with the width of breaker slot, and the rear end of banking pin is connected with the slip armature of tractive magnet; One end of described spring is fixed on the tractive magnet shell by spring anchorage bracket; The other end is fixed on the pull bar behind the tractive magnet slip armature.
2, the autobrake fender guard of a kind of hoisting cable reel according to claim 1 is characterized in that: the bottom surface of described breaker slot is a smooth ramp.
3, the autobrake fender guard of a kind of hoisting cable reel according to claim 1 and 2, it is characterized in that: the number of described breaker slot is 8, is distributed on the brake disc.
4, the autobrake fender guard of a kind of hoisting cable reel according to claim 1, it is characterized in that: described banking pin is provided with the brake pin bushing of captiveing joint with support outward.
5, the autobrake fender guard of a kind of hoisting cable reel according to claim 1 is characterized in that: the pull bar rear of described tractive magnet is provided with micro-switch.
6, the autobrake fender guard of a kind of hoisting cable reel according to claim 5, it is characterized in that: described micro-switch is fixed on the frame by the micro-switch support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201063445U CN201400543Y (en) | 2009-03-05 | 2009-03-05 | Automatic brake protecting device for lifting steel cable reel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201063445U CN201400543Y (en) | 2009-03-05 | 2009-03-05 | Automatic brake protecting device for lifting steel cable reel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201400543Y true CN201400543Y (en) | 2010-02-10 |
Family
ID=41660341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201063445U Expired - Lifetime CN201400543Y (en) | 2009-03-05 | 2009-03-05 | Automatic brake protecting device for lifting steel cable reel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201400543Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502446A (en) * | 2011-09-15 | 2012-06-20 | 周卫 | Double-brake runner |
| CN105540507A (en) * | 2016-01-08 | 2016-05-04 | 北京航空航天大学 | Stable dynamic linear movement generating device |
| CN106744450A (en) * | 2016-12-30 | 2017-05-31 | 苏州沃诺斯精密机械有限公司 | A kind of Brake device for traction sheave of elevator |
| CN109879122A (en) * | 2019-03-06 | 2019-06-14 | 国网浙江省电力有限公司金华供电公司 | A kind of cable reel for DC de-icing device |
-
2009
- 2009-03-05 CN CN2009201063445U patent/CN201400543Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502446A (en) * | 2011-09-15 | 2012-06-20 | 周卫 | Double-brake runner |
| CN105540507A (en) * | 2016-01-08 | 2016-05-04 | 北京航空航天大学 | Stable dynamic linear movement generating device |
| CN105540507B (en) * | 2016-01-08 | 2017-12-26 | 北京航空航天大学 | A kind of dynamic linear motion generating means of stabilization |
| CN106744450A (en) * | 2016-12-30 | 2017-05-31 | 苏州沃诺斯精密机械有限公司 | A kind of Brake device for traction sheave of elevator |
| CN109879122A (en) * | 2019-03-06 | 2019-06-14 | 国网浙江省电力有限公司金华供电公司 | A kind of cable reel for DC de-icing device |
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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 |
Granted publication date: 20100210 |
|
| CX01 | Expiry of patent term |