CN216190631U - Monitoring protection and height limiting device for messy rope of crane winding drum - Google Patents
Monitoring protection and height limiting device for messy rope of crane winding drum Download PDFInfo
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- CN216190631U CN216190631U CN202122347808.5U CN202122347808U CN216190631U CN 216190631 U CN216190631 U CN 216190631U CN 202122347808 U CN202122347808 U CN 202122347808U CN 216190631 U CN216190631 U CN 216190631U
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Abstract
The utility model discloses a random rope monitoring protection and height limiting device for a crane drum, which comprises a drum random rope monitoring unit, a height limiting unit and a mounting and fixing bracket, wherein the height limiting unit comprises a first contact switch, support spring pole, high spacing unit bottom plate, first contact switch is located high spacing unit bottom plate both sides, be equipped with the connecting plate between high spacing unit and the indiscriminate rope monitoring unit of reel, high spacing unit bottom plate and connecting plate are connected respectively at support spring pole both ends, the indiscriminate rope monitoring unit of reel includes wire rope row rope depth of parallelism monitoring module and second contact switch, wire rope row rope depth of parallelism monitoring module comprises wire rope row rope contact panel and parallel support spring pole, parallel support spring pole connects wire rope row rope depth of parallelism contact panel and connecting plate, second contact switch is located the connecting plate and keeps away from high spacing unit one side. The utility model can effectively monitor and alarm the rope disorder phenomenon, limit the height and ensure the safe and effective operation of the crane.
Description
Technical Field
The utility model relates to the technical field of tower crane safety construction control, in particular to a crane drum rope disorder monitoring protection and height limiting device.
Background
The crane is used as a main vertical transport machine in a building construction environment and undertakes the hoisting tasks of a main engineering structure and large-scale materials and equipment. Because the hoisting height and the hoisting range are large, the hoisting device and the amplitude variation device usually adopt a multilayer winding mode to meet the winding length of the steel wire rope, and although the interlayer turning angle of the steel wire rope and the positioning problem in the winding process of the steel wire rope are fully considered in the design process, the phenomenon of messy rope of a winding drum can be caused by insufficient force led out by the steel wire rope, improper operation of a driver and other reasons in the actual installation and debugging process, the messy rope phenomenon can cause the sudden release of a hoisted heavy object, the hoisting stability is influenced, and potential safety hazards are brought to the construction operation of the crane; the steel wire rope is damaged, so that the steel wire rope is scrapped, and the use cost of the crane is increased; after each rope disorder, a long time is spent for orderly finishing the steel wire ropes again, so that the normal production is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the utility model provides a device for monitoring, protecting and limiting the height of a crane drum in a messy rope.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a monitoring protection and height limiting device for the disorder rope of a crane drum comprises a drum disorder rope monitoring unit, a height limiting unit and a mounting and fixing support, wherein the drum disorder rope monitoring unit and the height limiting unit are mounted on one side of the drum through the mounting and fixing support, the height limiting unit comprises a first contact switch, a supporting spring rod and a height limiting unit bottom plate, the first contact switch is positioned on two sides of the height limiting unit bottom plate, a connecting plate is arranged between the height limiting unit and the drum disorder rope monitoring unit, two ends of the supporting spring rod are respectively connected with the height limiting unit bottom plate and the connecting plate, the drum disorder rope monitoring unit comprises a steel wire rope arrangement parallelism monitoring module and a second contact switch, the steel wire rope arrangement parallelism monitoring module comprises a steel wire rope arrangement contact panel and a parallel supporting spring rod, and the parallel supporting spring rod connects the steel wire rope arrangement contact panel with the connecting plate, the second contact switch is positioned on one side, far away from the height limiting unit, of the connecting plate.
Foretell indiscriminate rope monitoring protection of hoist reel and high stop device, parallel support spring beam includes balanced bracing piece, depth of parallelism monitoring lever.
The wire rope arrangement contact panel of the crane drum rope disorder monitoring protection and height limiting device is in contact with the outer side face of the drum wire rope arrangement.
Foretell indiscriminate rope monitoring protection of hoist reel and high stop device, balanced bracing piece one end passes through connecting axle swing joint with wire rope row rope contact panel one side intermediate position, the balanced bracing piece other end and connecting plate intermediate position fixed connection, depth of parallelism monitoring lever one end passes through connecting axle swing joint with wire rope row rope contact panel, be provided with second contact switch on the connecting plate that the depth of parallelism monitoring lever other end corresponds.
According to the crane drum messy rope monitoring protection and height limiting device, the distance between the parallelism monitoring rod and the second contact switch is 2-4 times of the diameter of the steel wire rope.
The distance between the connecting plate and the height limiting unit bottom plate is the difference between the thickness radius of the reel steel wire rope when the crane lifts at the lowest height limit and the thickness radius of the reel steel wire rope when the crane lifts at the highest height limit.
The utility model has the advantages that the utility model can effectively monitor and alarm the rope disorder phenomenon of the crane, monitor and limit the height, avoid safety accidents of the crane caused by the rope disorder phenomenon of the steel wire rope and the over-limit of the lifting height, ensure the safe and effective lifting operation of the crane and prolong the service life of the steel wire rope.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the connection structure of the present invention;
fig. 3 is an assembly schematic of the present invention.
In the figure, 100 is a reel disorder rope monitoring unit, 110 is a steel wire rope arrangement contact panel, 120 is a connecting shaft, 130 is a parallel supporting spring rod, 140 is a second contact switch, 150 is a balance supporting rod, 160 is a parallelism monitoring rod, 200 is a height limiting unit, 210 is a first contact switch, 220 is a supporting spring rod, 230 is a height limiting unit bottom plate, 300 is a mounting and fixing support, 400 is a reel, and 500 is a connecting plate.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the utility model discloses a monitoring protection and height limiting device for a random rope of a crane drum, which comprises a random rope monitoring unit 100 of the drum, a height limiting unit 200 and a mounting and fixing support 300, wherein the random rope monitoring unit 100 of the drum and the height limiting unit 200 are mounted on one side of the drum 400 through the mounting and fixing support 300.
The height limiting unit 200 comprises a first contact switch 210, a supporting spring rod 220 and a height limiting unit bottom plate 230, wherein the first contact switch 210 is located on two sides of the height limiting unit bottom plate 230, a connecting plate 500 is arranged between the height limiting unit 200 and the winding drum messy rope monitoring unit 100, and two ends of the supporting spring rod 220 are respectively connected with the height limiting unit bottom plate 230 and the connecting plate 500.
The drum rope disorder monitoring unit 100 comprises a steel wire rope arrangement parallelism monitoring module and a second contact switch 140, the steel wire rope arrangement parallelism monitoring module 130 consists of a steel wire rope arrangement contact panel 110 and a parallel support spring rod 130, the steel wire rope arrangement contact panel 110 is in contact with the outer side surface of the drum steel wire rope arrangement, the parallel support spring rod 130 connects the steel wire rope arrangement contact panel 110 with a connecting plate 500, the parallel support spring rod 130 comprises a balance support rod 150, one end of a balance support rod 150 is movably connected with the middle position of one side of the steel wire rope arranging contact panel 110 through a connecting shaft 120, the other end of the balance support rod 150 is fixedly connected with the middle position of a connecting plate 500, one end of the parallelism monitoring rod 160 is movably connected with the steel wire rope arranging contact panel 110 through the connecting shaft 120, and a second contact switch 140 is arranged on the connecting plate 500 corresponding to the other end of the parallelism monitoring rod 160.
Specifically, the distance between the end of the parallelism monitoring rod 160 and the second contact switch 140 behind the parallelism monitoring rod is a safety threshold K of the rope winding state of the steel wire rope, and the derivation process of the safety threshold K is as follows: the diameter of the steel wire rope is phi, and the length of the steel wire rope arrangement contact panel 110 is L;
when a circle of steel wire rope is lifted from one side of the steel wire rope arranging contact panel 110 in the moment when the rope of the reel is not in a messy state, the difference K of the expansion amounts of the parallelism monitoring rods 160 on the two sides of the steel wire rope arranging contact panel 1101Comprises the following steps: phi;
when the middle position of the steel wire rope arrangement contact panel 110 is lifted for a circle of steel wire rope in the moment when the rope disorder of the steel wire rope of the winding drum does not appear, the expansion amount difference K of the parallelism monitoring rods on the two sides of the steel wire rope arrangement contact panel 1102Comprises the following steps:
finally, calculate K2＝2φ；
And finally, determining that the safety threshold K is 2 alpha phi, wherein alpha is a safety amplification coefficient, the numerical value is 1.5-2, and finally determining that the distance between the parallelism monitoring rod 160 and the second contact switch 140 is 2-4 times of the diameter of the steel wire rope.
The distance between the connecting plate 500 and the height limiting unit bottom plate 230 is the difference between the thickness radius of the reel steel wire rope when the crane lifts at the lowest height limit and the thickness radius of the reel steel wire rope when the crane lifts at the highest height limit.
When the steel wire rope arranging contact panel 110 is in contact with the uneven steel wire rope arranging outer side surface (namely, the height of the rope arranging outer side surface contacted with one side of the steel wire rope arranging contact panel 110 is different from that of the rope arranging outer side surface contacted with the other side), the steel wire rope arranging contact panel 110 generates lateral inclination taking the fulcrum of the balance support rod 150 as the center under the action of the parallel support spring rod 130, different expansion amounts are generated by the parallelism monitoring rods 160 on the two sides of the steel wire rope arranging contact panel 110, and when the tail end of the parallelism monitoring rod 160 on the side with the larger compression amount is contacted with the second contact switch 140 on the rear side, the system judges that the rope disorder phenomenon occurs to the steel wire rope of the winding drum and sends out an alarm signal. Along with reel wire rope winding number of turns constantly increases, reel wire rope radius increases, and wire rope promotes the whole backward movement of indiscriminate rope monitoring unit 100 of reel, compresses supporting spring pole 220, and until connecting plate 500 touches two first contact switch 210, the system judges for the hoist plays to rise the action and reaches the height limit, begins to carry out height limit and warning and reminds.
It should be noted that the second contact switches 140 on both sides are not closed to determine that the rope disorder phenomenon does not occur in the reel steel wire rope, only one switch on one side determines that the rope disorder phenomenon occurs in the reel steel wire rope, and both switches on both sides determine that the rope disorder phenomenon does not occur in the reel steel wire rope; the first contact switches 210 on the two sides are not closed to judge that the hoisting height of the crane does not reach the height limit, the limiting is not carried out, only one switch is closed to judge that the rope disorder phenomenon of the steel wire rope of the winding drum occurs or the rope winding plane of the steel wire rope is not in a balanced state, the system judges that the hoisting height of the crane does not reach the height limit state, and the switches on the two sides are closed to judge that the hoisting height of the crane reaches the height limit state.
It should be noted that when the drum rope disorder monitoring unit 100 determines that the drum steel wire rope has a rope disorder state, the height limit monitoring determination is not performed.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (6)
1. The utility model provides a indiscriminate rope monitoring protection of hoist reel and high stop device which characterized in that: comprises a winding drum disorder rope monitoring unit, a height limiting unit and a mounting and fixing bracket, wherein the winding drum disorder rope monitoring unit and the height limiting unit are arranged on one side of a winding drum through the mounting and fixing bracket, the height limiting unit comprises a first contact switch, a supporting spring rod and a height limiting unit bottom plate, the first contact switches are positioned at two sides of the bottom plate of the height limiting unit, a connecting plate is arranged between the height limiting unit and the reel rope disorder monitoring unit, the two ends of the supporting spring rod are respectively connected with a bottom plate of the height limiting unit and a connecting plate, the drum rope disorder monitoring unit comprises a steel wire rope arrangement parallelism monitoring module and a second contact switch, the steel wire rope arrangement parallelism monitoring module consists of a steel wire rope arrangement contact panel and a parallel supporting spring rod, the parallel support spring rod connects the steel wire rope arranging contact panel with the connecting plate, and the second contact switch is located on one side, far away from the height limiting unit, of the connecting plate.
2. The crane drum messy rope monitoring protection and height limiting device as claimed in claim 1, wherein the parallel support spring rods comprise a balance support rod and a parallelism monitoring rod.
3. The crane drum rope disorder monitoring protection and height limiting device as claimed in claim 1, wherein the wire rope arrangement contact panel is in contact with an outer side surface of a drum wire rope arrangement.
4. The crane drum messy rope monitoring protection and height limiting device as claimed in claim 2, wherein one end of the balance support rod is movably connected with the middle position of one side of the steel wire rope arranging contact panel through a connecting shaft, the other end of the balance support rod is fixedly connected with the middle position of the connecting plate, one end of the parallelism monitoring rod is movably connected with the steel wire rope arranging contact panel through a connecting shaft, and a second contact switch is arranged on the connecting plate corresponding to the other end of the parallelism monitoring rod.
5. The crane drum messy rope monitoring protection and height limiting device as claimed in claim 4, wherein the distance between the parallelism monitoring rod and the second contact switch is 2-4 times the diameter of the steel wire rope.
6. The device for monitoring, protecting and limiting the height of the crane drum along with the rope disorder according to claim 1, wherein the distance between the connecting plate and the bottom plate of the height limiting unit is the difference between the thickness radius of the drum steel wire rope at the lowest height limit of the crane lifting and the thickness radius of the drum steel wire rope at the highest height limit of the crane lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122347808.5U CN216190631U (en) | 2021-09-27 | 2021-09-27 | Monitoring protection and height limiting device for messy rope of crane winding drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122347808.5U CN216190631U (en) | 2021-09-27 | 2021-09-27 | Monitoring protection and height limiting device for messy rope of crane winding drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216190631U true CN216190631U (en) | 2022-04-05 |
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ID=80926331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122347808.5U Active CN216190631U (en) | 2021-09-27 | 2021-09-27 | Monitoring protection and height limiting device for messy rope of crane winding drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216190631U (en) |
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2021
- 2021-09-27 CN CN202122347808.5U patent/CN216190631U/en active Active
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