CN203545509U - On-line warning device for oblique lifting of crane - Google Patents
On-line warning device for oblique lifting of crane Download PDFInfo
- Publication number
- CN203545509U CN203545509U CN201320752351.9U CN201320752351U CN203545509U CN 203545509 U CN203545509 U CN 203545509U CN 201320752351 U CN201320752351 U CN 201320752351U CN 203545509 U CN203545509 U CN 203545509U
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- travel switch
- cross bar
- fixed pulley
- steel rope
- bar
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Abstract
The utility model relates to an on-line warning device for oblique lifting of a crane. The on-line warning device comprises a first vertical plate and a second vertical plate which are installed on a fixed pulley mounting rack. The on-line warning device is characterized by further comprising a first travel switch and a second travel switch. The first travel switch is installed on the fixed pulley mounting rack through the first vertical plate, and the second travel switch is installed on the fixed pulley mounting rack through the second vertical plate. The on-line warning device is further provided with a transformer, a fuse protector, and an indicator light. The fuse protector, the indicator light, and a normally open contact of the first travel switch are sequentially connected in series at the two ends of the output side of the transformer. One end of a normally open contact of the second travel switch is connected with one end of the output side of the transformer, and the other end of the normally open contact of the second travel switch is connected with the other end of the output side of the transformer sequentially through the indicator light and the fuse protector. The first travel switch is provided with a first cross bar, and the second travel switch is provided with a second cross bar. By the adoption of the on-line warning device, forewarning light signals or warning signals for oblique lifting in lifting operation of a crane will be found out timely.
Description
Technical field
The utility model relates to a kind of crane inclined hanging at alarm device.
Background technology
Hoisting crane belongs to the special equipment of state's laws regulation, it has the danger of height, strictly by rules, controlling hoisting crane is safing basis, and the accident that hoisting crane occurs is mostly because operate against regulations and cause, particularly askew skew to hang more easily cause the accident.Reason, will be perpendicular to the ground at an angle linear when to be that hoisting crane oblique pull is askew hang, and this angle is larger, the pulling force that steel rope is subject to is larger, if run into the obstacle on ground in the askew extension process of oblique pull, the suffered pulling force of steel rope can be larger again, so askew the hanging of oblique pull can make hoisting crane overload; Crane component part very easily occurs during the askew extension of hoisting crane oblique pull and damage, hoisting crane mechanical breakdown or equipment breakdown, as burn-down of electric motor, hoisting crane breaking, pulley fracture, steel rope go out the serious equipment breakdowns such as groove; Hoisting crane oblique pull is askew also can produce a horizontal component of force while hanging, and when gesture is swung in the formation in a flash of weight built on stilts, this gesture of swinging very easily causes the hoisting crane object that causes out of control to bump against the serious consequence that peripheral facilities suffers to destroy, even cause personal injury.
At present hoisting crane prevents from askewly skewing the measure of hanging and substantially lean on training education to operating personal, level that standard is examined, therefore judge whether to cross operating instruction by the meter steel rope of lifting and the angle of vertical direction, applicant once fixed pulley erecting frame install a riser perpendicular to the ground as crane inclined hanging at alarm device, the lower end that the steel rope of usining is encountered riser reaches the mark of 5 ° as the angle of steel rope and vertical direction, therefore the angle of generally coming steel rope to tilt in riser.Such measure is insecure, and particularly the sight line of monkey operation and operating personal is at same straight line, and operating personal is difficult to judge that whether suspension hook is vertical with suspended object, very easily causes askew the skewing of hoisting crane to hang and have an accident.
Summary of the invention
In order to overcome existing crane inclined hanging in the above-mentioned deficiency of alarm device, the utility model provides in a kind of operational process accurately, failure-free crane inclined hanging is at alarm device.
This crane inclined hanging is at alarm device, comprise and be arranged on starting stave and the second riser that fixed pulley erecting frame is positioned at fixed pulley both sides, it is characterized in that: the first travel switch and the second travel switch are also being set, the first travel switch is arranged on fixed pulley erecting frame by starting stave, and the second travel switch is arranged on fixed pulley erecting frame by the second riser.
Voltage transformer, fuse and indicator lamp are also being set, the input side of voltage transformer is 380V, outgoing side is 36V, the normally open contact of fuse, indicator lamp and the first travel switch is connected on the two ends of the outgoing side of voltage transformer successively, one end of the normally open contact of the second travel switch is connected with one end of the outgoing side of voltage transformer, and the other end of the normally open contact of the second travel switch is connected with the other end of the outgoing side of voltage transformer through indicator lamp and fuse successively.
The first reset lever of the first travel switch fastening the first T-bar, the first T-bar has the first montant and the first cross bar, the length of the first cross bar is not less than the width of running block; The middle part that the first montant is fixed on the first cross bar becomes T-shaped, and the first T-bar is fastened on the first reset lever by the first montant; Position between the first travel switch and fixed pulley is to arrange like this: near the first travel switch steel rope, to the first travel switch, tilt, when the angle near the first travel switch steel rope and vertical direction reaches 5 °, near the first travel switch steel rope, contact with the first cross bar.
The second reset lever of the second travel switch fastening the second T-bar, the second T-bar has the second montant and the second cross bar, the length of the second cross bar is not less than the width of running block, the middle part that the second montant is fixed on the second cross bar becomes T-shaped, and the second T-bar is fastened on the second reset lever by the second montant; Position between the second travel switch and fixed pulley is to arrange like this: near the second travel switch steel rope, to the second travel switch, tilt, when the angle near the second travel switch steel rope and vertical direction reaches 5 °, near the second travel switch steel rope, contact with the second cross bar.
The utility model can be used LX2, LX19 series travel switch or other travel switch.Reset lever is any of push rod or fork.
The beneficial effects of the utility model
This crane inclined hanging is the application on crane hoisting mechanism at alarm device, be arranged on the indicator lamp of operator's compartment or report to the police and can find in time that in operation, the askew omen of hanging that skews alerting signal, bright or the alarm equipment alarm of indicator lamp when the angle of steel rope and vertical direction reaches 5 °, thereby avoid the askew generation of hanging that skews, safety in production is played to vital effect, and actv. prevents the generation of various kinds of equipment accident and personal injury accident.Through repeatedly on probation online, the askew Detection accuracy hanging that skews of hoisting crane is reached to 100%, from safety facilities, guarantee to be not more than the normative operation of five degree, for safety, produce and bring very failure-free to guarantee, collateral security the safe operation of hoisting crane.
Accompanying drawing explanation
Fig. 1 is the constructional drawing of the utility model embodiment.
Fig. 2 is the cutaway view along A-A line in Fig. 1.
Fig. 3 is the circuit diagram of the utility model embodiment.
Fig. 4 is the position relationship schematic diagram of the first cross bar and close the first travel switch steel rope.
In above-mentioned figure:
1. fixed pulley erecting frame, 2. fixed pulley, 3. starting stave, 4. the first stroke switch baseplate, 5. the first travel switch, 6. the first reset lever, 7. the first T-bar, 8. the first montant, 9. the first cross bar, 10. near the first travel switch steel rope, 11. near the second travel switch steel rope, 12. second cross bars, 13. second montants, 14. second T-bars, 15. second reset levers, 16. second travel switches, 17. second travel switch base plates, 18. electric wires, 19. second risers, 20. movable pulleys, 21. voltage transformers, 22. fuses, 23. indicator lamps, 24. point of contacts, 25. positions, 26. intersection points.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing thereof, describe concrete embodiment of the present utility model in detail, but the specific embodiment of the present utility model is not limited to following embodiment.
Embodiment
Because respectively there is one group of steel rope on the both sides of the fixed pulley of hoisting crane, during work, steel rope can also can be tilted to the right left, so one side of each group steel rope should arrange a travel switch, the present embodiment is arranging two travel switches.
The structure of the present embodiment is shown in Fig. 1 and Fig. 2, it comprises and is arranged on starting stave 3 and the second riser 19 that fixed pulley erecting frame 1 is positioned at fixed pulley 2 both sides, it is characterized in that: the first travel switch 5 and the second travel switch 16 are also being set, the first travel switch 5 is arranged on fixed pulley erecting frame 1, the second travel switch 16 by starting stave 3 and is arranged on fixed pulley erecting frame 1 by the second riser 19.
The circuit of two travel switches connects sees Fig. 3.The voltage of 380V is reduced to 36V safety voltage through voltage transformer 21, the normally open contact of fuse 22, indicator lamp 23 and the first travel switch 5 (not being off-state under stressing conditions) is connected on the two ends of the outgoing side of voltage transformer 21 successively, one end of the normally open contact of the second travel switch 16 is connected with one end of voltage transformer 21 outgoing sides, and the other end of the normally open contact of the second travel switch 16 is connected with the other end of the outgoing side of voltage transformer 21 through indicator lamp 23 and fuse 22.Available annunciator replaces indicator lamp 23.
The first reset lever 6 of the first travel switch 5 fastening the first T-bar 7, the first T-bars 7 have the length of the first montant 8 and the first cross bar 9, the first cross bars 9 to be not less than the width of running block 20.The middle part that the first montant 8 is fixed on the first cross bar 9 becomes T-shaped, and the first T-bar 7 is fastened on the first reset lever 6 by the first montant 8.Position between the first travel switch 5 and fixed pulley 2 is to arrange like this: the fixed pulley 2 of Fig. 1 is tilted to the right, when the angle near the first travel switch steel rope 10 and vertical (perpendicular to the ground) direction reaches 5 °, near the first travel switch steel rope 10, contact with the first cross bar 9, the normally open contact of the first travel switch 5 is closed, indicator lamp 23 is bright, prompting hoisting crane tilts to reach 5 °, quits work.
The second reset lever 15 of the second travel switch 16 fastening the second T-bar 14, the second T-bar 14 has the second montant 13 and the second cross bar 12, the length of the second cross bar 12 is not less than the width of running block 20, the middle part that the second montant 13 is fixed on the second cross bar 12 becomes T-shaped, and the second T-bar 14 is fastened on the second reset lever 15 by the second montant 13.Position between the second travel switch 16 and fixed pulley 2 is to arrange like this: the fixed pulley 2 of Fig. 1 is tilted to the left, when the angle near the second travel switch steel rope 11 and vertical direction reaches 5 °, near the second travel switch steel rope 11, contact with the second cross bar 12, the normally open contact of the second travel switch 16 is closed, indicator lamp 23 is bright, prompting hoisting crane tilts to reach 5 °, quits work.
The position relationship of travel switch and steel rope is described with the first cross bar and the position relationship near the first travel switch steel rope, sees Fig. 4.In figure, near the first travel switch steel rope 10, at horizon, be intersection point 26 with the intersection point near the first travel switch steel rope 10 with the position 25 at 25, the first cross bar 9 places, Shi position, position at 24, the first cross bar 9 places, Shi point of contact, point of contact of fixed pulley 2.Angle between connection lead between 24He position, point of contact 25 and close the first travel switch steel rope 10 is 5 °.Distance between intersection point 26 and position 25, and the distance ratio between point of contact 24 and intersection point 26 are that 48:547(ignores the variation near the first travel switch steel rope 10 upper-lower position at point of contact 24 in swing process).
Claims (1)
1. a crane inclined hanging is at alarm device, it comprises and is arranged on starting stave and the second riser that fixed pulley erecting frame is positioned at fixed pulley both sides, it is characterized in that: the first travel switch and the second travel switch are also being set, the first travel switch is arranged on fixed pulley erecting frame by starting stave, and the second travel switch is arranged on fixed pulley erecting frame by the second riser;
Voltage transformer, fuse and indicator lamp are also being set, the input side of voltage transformer is 380V, outgoing side is 36V, the normally open contact of fuse, indicator lamp and the first travel switch is connected on the two ends of the outgoing side of voltage transformer successively, one end of the normally open contact of the second travel switch is connected with one end of the outgoing side of voltage transformer, and the other end of the normally open contact of the second travel switch is connected with the other end of the outgoing side of voltage transformer through indicator lamp and fuse successively;
The first reset lever of the first travel switch fastening the first T-bar, the first T-bar has the first montant and the first cross bar, the length of the first cross bar is not less than the width of running block; The middle part that the first montant is fixed on the first cross bar becomes T-shaped, and the first T-bar is fastened on the first reset lever by the first montant; Position between the first travel switch and fixed pulley is to arrange like this: near the first travel switch steel rope, to the first travel switch, tilt, when the angle near the first travel switch steel rope and vertical direction reaches 5 °, near the first travel switch steel rope, contact with the first cross bar;
The second reset lever of the second travel switch fastening the second T-bar, the second T-bar has the second montant and the second cross bar, the length of the second cross bar is not less than the width of running block, the middle part that the second montant is fixed on the second cross bar becomes T-shaped, and the second T-bar is fastened on the second reset lever by the second montant; Position between the second travel switch and fixed pulley is to arrange like this: near the second travel switch steel rope, to the second travel switch, tilt, when the angle near the second travel switch steel rope and vertical direction reaches 5 °, near the second travel switch steel rope, contact with the second cross bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752351.9U CN203545509U (en) | 2013-11-26 | 2013-11-26 | On-line warning device for oblique lifting of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752351.9U CN203545509U (en) | 2013-11-26 | 2013-11-26 | On-line warning device for oblique lifting of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545509U true CN203545509U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320752351.9U Expired - Fee Related CN203545509U (en) | 2013-11-26 | 2013-11-26 | On-line warning device for oblique lifting of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545509U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528532A (en) * | 2014-12-23 | 2015-04-22 | 中联重科股份有限公司 | Inclined hoisting state monitoring equipment and control method, control equipment, and system thereof |
| CN107879250A (en) * | 2017-12-13 | 2018-04-06 | 云南昆钢重型装备制造集团有限公司 | It is a kind of to prevent crane steel cable is askew to skew the safety guard hung |
| CN108928743A (en) * | 2018-08-02 | 2018-12-04 | 芜湖市新海域智能科技有限公司 | A kind of anti-oblique drawing device of crane that stability is good |
-
2013
- 2013-11-26 CN CN201320752351.9U patent/CN203545509U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528532A (en) * | 2014-12-23 | 2015-04-22 | 中联重科股份有限公司 | Inclined hoisting state monitoring equipment and control method, control equipment, and system thereof |
| CN107879250A (en) * | 2017-12-13 | 2018-04-06 | 云南昆钢重型装备制造集团有限公司 | It is a kind of to prevent crane steel cable is askew to skew the safety guard hung |
| CN107879250B (en) * | 2017-12-13 | 2024-04-05 | 云南昆钢重型装备制造集团有限公司 | Safety protection device capable of preventing inclined pull of crane steel rope |
| CN108928743A (en) * | 2018-08-02 | 2018-12-04 | 芜湖市新海域智能科技有限公司 | A kind of anti-oblique drawing device of crane that stability is good |
| CN108928743B (en) * | 2018-08-02 | 2020-08-28 | 株洲天桥起重机装备有限公司 | Crane diagonal-pulling prevention device with good stability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20191126 |