A crane anti-collision protection device

Abstract

The present invention belongs to the technical field of overhead crane equipment, and discloses an anti-collision protection device for an overhead crane, the technical key points of which are: comprising two groups of end beams, a cross beam is fixedly installed between the two groups of end beams, an overhead crane body is slidably installed on the surface of the cross beam, a lifting assembly is provided on the bottom wall of the overhead crane body, a first anti-collision mechanism is provided in the overhead crane body, the first anti-collision mechanism comprises a protective ring, a first positioning assembly and a first adjusting assembly, a second anti-collision mechanism is provided on the surface of the end beam, the second anti-collision mechanism comprises an anti-collision spring plate, a second positioning assembly and a second adjusting assembly, the second adjusting assembly comprises a counterweight plate, a supporting part and a driving part, which solves the problem that the overhead crane has a large inertia when moving, the swing amplitude of the steel cable is large, which easily leads to collision between the hoisted goods and the overhead crane equipment, and the safety is poor.

Description

Technical Field

[0001] The invention relates to the technical field of overhead crane equipment, in particular to an overhead crane anti-collision protection device. Background Art

[0002] Overhead crane, also known as bridge crane, is a special kind of lifting machinery. Its bridge is erected on an elevated track and can move longitudinally along the track, while the lifting trolley moves transversely along the track on the bridge, together forming a rectangular working area. In this area, the overhead crane can perform lifting operations in both longitudinal and transverse directions. It is mainly used for handling, hoisting and transporting heavy objects. It is widely used in factories, ports, warehouses, and industrial production fields such as steel, petrochemicals, shipbuilding, and automobiles.

[0003] Overhead cranes are flexible, easy to operate, and have a large load-bearing capacity. They can perform efficient and safe lifting operations under various operating conditions. They are usually electrically driven, have stable operation, low noise, and low energy consumption, and can also be remotely controlled and automatically operated. In addition, overhead cranes have a compact structure and small footprint, making them very suitable for lifting operations in various places with narrow spaces.

[0004] When the overhead crane is lifting goods, the overhead crane slides on the surface of the beam to adjust the position of the goods. The existing overhead crane equipment lacks necessary protective measures. The overhead crane body is prone to collide with the end beams on both sides of the beam when sliding, affecting the normal use of the equipment. In addition, when the existing overhead crane equipment lifts goods through steel cables, the overhead crane has a large inertia when moving and the steel cables have a large swing amplitude, which can easily cause the lifted goods to collide with the overhead crane equipment, resulting in poor safety. Summary of the invention

[0005] The object of the present invention is to provide an overhead travelling crane anti-collision protection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A crane anti-collision protection device comprises two groups of end beams, the two groups of end beams are relatively distributed, brackets are fixedly installed on both sides of the bottom walls of the end beams, a cross beam is fixedly installed between the two groups of end beams, a crane body is slidably installed on the surface of the cross beam, the bottom wall of the crane body is provided with a lifting assembly, the lifting assembly comprises a fixing frame, the bottom wall of the fixing frame is provided with a hook, the middle part of the fixing frame is rotatably installed with a guide wheel, a lifting rope is provided in the crane body, the lifting rope passes through the outside of the guide wheel, a winding assembly that cooperates with the lifting rope is provided in the crane body, a first anti-collision mechanism that cooperates with the lifting rope is provided in the crane body, the first anti-collision mechanism comprises a guard ring, a first positioning assembly and a first adjusting assembly, the guard ring is provided with multiple groups, the first positioning assembly is located on the bottom wall of the crane body and is connected to multiple groups of guard rings, the first positioning assembly is used to control the multiple groups of guard rings to be sequentially sleeved from the inside to the outside, the first adjusting assembly is connected to the guard ring, the first The adjusting assembly adjusts the relative positions between multiple groups of protective rings on the outside of the lifting rope by cooperating with the first positioning assembly. The surface of the end beam is provided with a second anti-collision mechanism that cooperates with the crane body. The second anti-collision mechanism includes an anti-collision spring plate, a second positioning assembly and a second adjusting assembly. The second positioning assembly is located on the two opposite side walls of the two groups of end beams and is connected to the anti-collision spring plate. The second positioning assembly is used to support and position the anti-collision spring plate at the side wall of the end beam. The second adjusting assembly includes a counterweight plate, a supporting part and a driving part. The counterweight plates are provided in multiple groups. The supporting part is located inside the end beam and connected to the counterweight plate. The supporting part is used to store the counterweight plate inside the end beam. The driving part is located in the crane body and connected to the supporting part. When the crane body moves toward the end beam and is about to collide, the driving part controls the multiple groups of counterweight plates to fall in turn under the action of gravity by cooperating with the supporting part, thereby gradually increasing the elastic thrust of the anti-collision spring plate on the crane body.

[0008] As a further solution of the present invention: the first positioning assembly includes an annular receiving groove opened upward from the bottom wall of the overhead crane body, the receiving groove is sleeved on the outside of the lifting rope, and multiple groups of protective rings are sequentially sleeved from the inside to the outside and are located in the receiving groove, and the side walls of the receiving groove and the inner walls of the multiple groups of protective rings are respectively provided with multiple groups of limit grooves distributed in the vertical direction, and the outer walls of the multiple groups of protective rings are fixedly installed with limit blocks, and the limit blocks are slidably connected to the outer limit grooves along the vertical direction.

[0009] As a further solution of the present invention: the first adjustment component includes a control disk, the control disk is made of magnetic material, the bottom end of the innermost protective ring extends to the outside of the overhead crane body, a plurality of connecting rods are fixedly installed on the inner bottom wall of the innermost protective ring, and one end of the plurality of connecting rods facing the axis of the protective ring is commonly connected to the control disk, an electromagnetic plate that cooperates with the control disk is fixedly installed on the bottom wall of the overhead crane body, and a controller that cooperates with the electromagnetic plate is arranged inside the overhead crane body.

[0010] As a further solution of the present invention: the second positioning assembly includes two groups of transverse grooves respectively opened on the two side walls opposite to each other of the end beams, two groups of relatively distributed sliding blocks are slidably installed in the transverse grooves, the anti-collision spring plate is in the transverse grooves, and the two ends of the anti-collision spring plate are respectively connected to the sliding blocks on both sides.

[0011] As a further solution of the present invention: the support part includes a storage groove opened upward from the bottom wall of the end beam, and multiple groups of counterweight plates are successively arranged in the storage groove along the vertical direction. Multiple groups of side grooves are respectively opened on the opposite side walls of the storage groove along the vertical direction. A support plate is slidably installed in the side groove, and the support plate extends into the storage groove and supports the counterweight plate. An extrusion spring is fixedly installed in the side groove, and the telescopic end of the extrusion spring is connected to the support plate. A connecting groove connected to the storage groove is opened downward in the middle part of the bottom wall of the transverse groove. Except for the lowest counterweight plate, through holes are respectively opened in the middle of multiple groups of counterweight plates. First pulling ropes are respectively fixedly installed on the side walls of the two groups of sliding blocks, and the end of the first pulling rope away from the sliding block passes through the connecting groove and the through hole and is connected to the lowest counterweight plate.

[0012] As a further solution of the present invention: the driving part includes transverse holes opened inwardly from the side walls of the end beam and located on both sides of the storage groove, and wire grooves connected to the transverse holes are opened inwardly from the bottom walls of multiple groups of side grooves, and one end of the support plate located in the side groove is fixedly installed with a second pulling rope, and the end of the second pulling rope away from the support plate passes through the wire groove and extends into the transverse hole and is fixedly installed with a control block, and the control blocks connected to the second pulling ropes connected to the support plates distributed in sequence from bottom to top are distributed in sequence from outside to inside in the transverse hole, and a push rod cooperating with the transverse hole is fixedly installed on the side wall of the overhead crane body, and the second pulling rope is made of elastic material.

[0013] As a further solution of the present invention: a vertical rod is fixedly installed in the limiting groove, and the limiting block is slidably connected to the vertical rod along the vertical direction.

[0014] As a further solution of the present invention: a limit rod distributed along the horizontal direction is fixedly installed in the transverse groove, and the sliding block is slidably connected to the limit rod.

[0015] As a further solution of the present invention: a protection wheel that cooperates with the first pulling rope is rotatably installed in the connecting groove.

[0016] As a further solution of the present invention: one end of the support plate extending outside the side groove is configured as an inclined structure.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the first adjustment component to cooperate with the first positioning component, the relative positions of multiple sets of protective rings and the lifting rope can be conveniently adjusted, thereby improving the stability of the lifting rope when lifting materials, and effectively preventing the lifting rope and the lifted materials from swinging too much during lifting; it solves the problem that the current overhead crane has a large inertia when moving, the swing amplitude of the steel cable is large, and it is easy to cause the lifted goods to collide with the overhead crane equipment, resulting in poor safety. By setting the second adjustment component composed of the support part, the drive part, and the counterweight plate to cooperate with the second positioning component, the relative position of the anti-collision spring plate and the overhead crane body can be conveniently adjusted, and the elastic thrust of the anti-collision spring plate on the overhead crane body can be synchronously adjusted, thereby protecting the overhead crane body from collision; it solves the problem that the current overhead crane body is prone to collide with the end beams on both sides of the beam when sliding, affecting the normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an overhead crane anti-collision protection device provided in an embodiment of the present invention Figure 1 .

[0019] Figure 2 A schematic diagram of the three-dimensional structure of an overhead crane anti-collision protection device provided in an embodiment of the present invention Figure 2 .

[0020] Figure 3 The present invention is a schematic diagram of the main structure of an overhead crane anti-collision protection device provided in an embodiment of the present invention.

[0021] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A.

[0022] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of B.

[0023] Figure 6 The present invention provides a schematic diagram of a counterweight block and its connection structure in an anti-collision protection device for an overhead crane in an embodiment of the present invention.

[0024] Figure 7 The present invention is a schematic diagram of a transverse hole and its connection structure in an anti-collision protection device for a crown crane provided in an embodiment of the present invention.

[0025] Figure 8 It is a structural schematic diagram of a second positioning assembly in an overhead crane anti-collision protection device provided in an embodiment of the present invention.

[0026] Fig. 9 The present invention provides a schematic diagram of an anti-collision spring plate and its connection structure in an anti-collision protection device for an overhead crane in an embodiment of the present invention.

[0027] Among them: 1-end beam, 2-cross beam, 3-crane body, 4-bracket, 5-lifting assembly, 51-fixed frame, 52-hook, 53-guide wheel, 54-lifting rope, 6-first anti-collision mechanism, 61-protection ring, 62-first positioning assembly, 621-storage slot, 622-limiting slot, 623-limiting block, 63-first adjustment assembly, 631-connecting rod, 632-control panel, 633-electromagnetic plate, 7-second anti-collision mechanism, 71-anti-collision spring plate, 72-second positioning assembly, 721 - horizontal groove, 722- sliding block, 73- second adjustment component, 731- counterweight plate, 732- supporting part, 7321- storage groove, 7322- connecting groove, 7323- side groove, 7324- supporting plate, 7325- extrusion spring, 7326- through hole, 7327- first pulling rope, 733- driving part, 7331- horizontal hole, 7332- wire groove, 7333- second pulling rope, 7334- control block, 7335- push rod, 8- vertical rod, 9- limit rod, 10- protection wheel. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 8As shown, it is a structural diagram of an anti-collision protection device for a crane provided by an embodiment of the present invention, comprising two groups of end beams 1, the two groups of end beams 1 are relatively distributed, and brackets 4 are fixedly installed on both sides of the bottom wall of the end beams 1, and a cross beam 2 is fixedly installed between the two groups of end beams 1. A crane body 3 is slidably installed on the surface of the cross beam 2, and a lifting assembly 5 is arranged on the bottom wall of the crane body 3. The lifting assembly 5 includes a fixing frame 51, and a hook 52 is arranged on the bottom wall of the fixing frame 51. A guide wheel 53 is rotatably installed in the middle of the fixing frame 51, and a lifting rope 54 is arranged in the crane body 3. The lifting rope 54 is arranged on the inside of the crane body 3. 4 passes through the outside of the guide wheel 53, a retracting assembly that cooperates with the lifting rope 54 is arranged in the crane body 3, a first anti-collision mechanism 6 that cooperates with the lifting rope 54 is arranged in the crane body 3, the first anti-collision mechanism 6 includes a protective ring 61, a first positioning assembly 62 and a first adjustment assembly 63, the protective ring 61 is provided with multiple groups, the first positioning assembly 62 is located on the bottom wall of the crane body 3 and is connected to the multiple groups of protective rings 61, the first positioning assembly 62 is used to control the multiple groups of protective rings 61 to be sleeved in sequence from the inside to the outside, the first adjustment assembly 63 is connected to the protective ring 61, the first The adjusting component 63 adjusts the relative positions between the multiple groups of protective rings 61 on the outside of the lifting rope 54 by cooperating with the first positioning component 62. The surface of the end beam 1 is provided with a second anti-collision mechanism 7 that cooperates with the crane body 3. The second anti-collision mechanism 7 includes an anti-collision spring plate 71, a second positioning component 72 and a second adjusting component 73. The second positioning component 72 is located on the two opposite side walls of the two groups of end beams 1 and is connected to the anti-collision spring plate 71. The second positioning component 72 is used to support and position the anti-collision spring plate 71 at the side wall of the end beam 1. The second adjusting component 73 includes a counterweight plate 73. 1. Support part 732 and driving part 733. The counterweight plates 731 are provided with multiple groups. The support part 732 is located inside the end beam 1 and connected to the counterweight plates 731. The support part 732 is used to store the counterweight plates 731 inside the end beam 1. The driving part 733 is located inside the crane body 3 and connected to the support part 732. When the crane body 3 moves toward the end beam 1 and is about to collide, the driving part 733 controls the multiple groups of counterweight plates 731 to fall in turn under the action of gravity by cooperating with the support part 732, thereby gradually increasing the elastic thrust of the anti-collision spring plate 71 on the crane body 3.

[0031] Initially, the first positioning component 62 cooperates with the first adjusting component 63 to control the multiple sets of protective rings 61 to be sequentially sleeved and integrally located in the overhead crane body 3. The second positioning component 72 controls the anti-collision spring plate 71 to be located at the side wall of the end beam 1. At this time, the anti-collision spring plate 71 is not in a compressed state, and the anti-collision spring plate 71 remains in a relaxed state. When hoisting materials, the winding component winds and unwinds the lifting rope 54 to adjust the height of the hook 52. When the hook 52 moves to a low position, the hook 52 is used to suspend the material. The lifting rope 54 drives the hook 52 to move upward and then drives the material to move upward synchronously. When hoisting materials, the first adjusting component 63 cooperates with the first positioning component 62 to adjust the multiple sets of protective rings 61. The position of the plurality of protection rings 61 makes the plurality of protection rings 61 extend downward from the inside to the outside in sequence. At this time, the plurality of protection rings 61 form a cylindrical structure with a radius gradually decreasing from top to bottom. The plurality of protection rings 61 are sleeved on the outside of the lifting rope 54. When the overhead crane body 3 moves in the horizontal direction on the surface of the beam 2, it drives the lifting rope 54 and the material to move synchronously. When moving, the lifting rope 54 and the material are easy to swing under the action of inertia or external force. When the lifting rope 54 swings, the overall swing amplitude of the lifting rope 54 is within the protection ring 61. The plurality of protection rings 61 cooperate with each other, which can effectively reduce the swing amplitude of the lifting rope 54 and the material during lifting, thereby effectively improving the stability of the material during lifting, and effectively avoiding the collision of the material with the brackets 4 on both sides or other external equipment during lifting.

[0032] The crane body 3 moves in the horizontal direction on the surface of the cross beam 2. When the crane body 3 moves toward the end beam 1 and gradually approaches the end beam 1, the driving part 733 cooperates with the supporting part 732 to control a group of counterweight plates 731 to fall freely at the bottom wall of the end beam 1. The gravity of a group of counterweight plates 731 cooperates with the second positioning assembly 72 to control the bending of the anti-collision plate 71. The anti-collision plate 71 forms an arc structure and extends to the outside of the end beam 1. When the crane body 3 approaches the end beam 1, the anti-collision plate 71 can first contact with the crane body 3, and then provide anti-collision protection for the end beam 1 and the crane body 3. When the crane body 3 moves toward the end beam 1, the inertia is large, and the bending anti-collision plate 71 When the anti-collision plate 71 cannot push the crane body 3 to move away from the end beam 1, although the anti-collision plate 71 applies a thrust to the crane body 3, the crane body 3 still moves toward the end beam 1. At this time, the driving part 733 and the supporting part 732 cooperate with each other, and multiple groups of counterweight plates 731 can be added in sequence to fall freely at the bottom wall of the end beam 1. The gravity of the multiple groups of counterweight plates 731 cooperates with the second positioning component 72 to increase the bending degree of the anti-collision plate 71, and then increase the elastic force of the anti-collision plate 71. The anti-collision plate 71 can apply a greater thrust to the crane body 3, thereby making the anti-collision plate 71 move away from the end beam 1, which can effectively avoid the collision between the crane body 3 and the end beam 1.

[0033] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, as a preferred embodiment of the present invention, the first positioning component 62 includes an annular receiving groove 621 opened upward from the bottom wall of the overhead crane body 3, the receiving groove 621 is sleeved on the outside of the lifting rope 54, and multiple groups of protective rings 61 are sequentially sleeved from the inside to the outside and are located in the receiving groove 621, and the side walls of the receiving groove 621 and the inner walls of the multiple groups of protective rings 61 are respectively provided with multiple groups of limit grooves 622 distributed in the vertical direction, and the outer walls of the multiple groups of protective rings 61 are fixedly installed with limit blocks 623, and the limit blocks 623 are slidably connected with the outer limit grooves 622 along the vertical direction.

[0034] Initially, the first adjustment component 63 supports and positions the innermost protective ring 61. At this time, the limit block 623 on the surface of the inner protective ring 61 is at the top of the limit groove 622 on the surface of the outer protective ring 61. The inner limit block 623 supports and positions the outer protective ring 61. At this time, multiple groups of protective rings 61 are sequentially sleeved from the inside to the outside and are entirely in the storage groove 621. When the lifting rope 54 needs to be protected from collision, the first adjustment component 63 releases the supporting force on the innermost protective ring 61, and the multiple groups of protective rings 61 fall down in sequence under the action of gravity. At this time, the limit block 623 on the surface of the inner protective ring 61 is at the bottom of the limit groove 622 on the surface of the outer protective ring 61. The multiple groups of protective rings 61 extend from top to bottom into a cylindrical structure with a gradually decreasing diameter and are sleeved on the outside of the lifting rope 54. The multiple groups of protective rings 61 can effectively reduce the swing amplitude of the lifting rope 54, thereby preventing the lifted materials from colliding with the brackets 4 on both sides or other external equipment. After the lifting is completed, the winding assembly cooperates with the lifting rope 54 to control the fixed frame 51 to move vertically upward. At this time, the fixed frame 51 moving vertically upward cooperates with the first adjustment assembly 63 to control the multiple sets of protective rings 61 to be re-connected and moved to the storage groove 621 for storage.

[0035] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, as a preferred embodiment of the present invention, the first adjustment component 63 includes a control disk 632, and the control disk 632 is made of magnetic material. The bottom end of the innermost protective ring 61 extends to the outside of the overhead crane body 3, and a plurality of connecting rods 631 are fixedly installed on the inner bottom wall of the innermost protective ring 61. The ends of the plurality of connecting rods 631 facing the axis of the protective ring 61 are commonly connected to the control disk 632, and an electromagnetic plate 633 cooperating with the control disk 632 is fixedly installed on the bottom wall of the overhead crane body 3, and a controller cooperating with the electromagnetic plate 633 is arranged inside the overhead crane body 3.

[0036] Initially, the control panel 632 is located at the bottom wall of the crane body 3, and the electromagnetic plate 633 uses magnetic suction to adsorb and position the control panel 632. The control panel 632 cooperates with the connecting rod 631 to support and position the innermost protective ring 61. Through the cooperation of multiple groups of limit grooves 622 and limit blocks 623, multiple groups of protective rings 61 can be controlled to be sleeved from the inside to the outside in sequence and be placed in the storage groove 621 as a whole. When it is necessary to provide shock-absorbing protection for the hoisting rope 54, the controller cuts off the power to the electromagnetic plate 633, and the electromagnetic plate 633 releases the suction force on the control panel 632. Under the action of gravity, multiple groups of protective rings 61 fall in sequence in the storage groove 621 and are sleeved on the outside of the hoisting rope 54.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 8 , Fig. 9 As shown, as a preferred embodiment of the present invention, the second positioning assembly 72 includes transverse grooves 721 respectively opened on the two side walls opposite to each other of the two groups of end beams 1, and two groups of relatively distributed sliding blocks 722 are slidably installed in the transverse grooves 721. The anti-collision bullet plate 71 is in the transverse grooves 721, and the two ends of the anti-collision bullet plate 71 are respectively connected to the sliding blocks 722 on both sides.

[0038] The two sets of sliding blocks 722 position the anti-collision plate 71 in the transverse groove 721. Initially, the two ends of the anti-collision plate 71 are not subjected to thrust. When the crane body 3 moves toward the end beam 1 and approaches the end beam 1, the support portion 732 applies a pulling force to the two sets of sliding blocks 722, thereby causing the two sets of sliding blocks 722 to move relative to each other in the transverse groove 721. At this time, the two sets of sliding blocks 722 apply a thrust to the anti-collision plate 71, thereby the anti-collision plate 71 forms a curved structure and extends to the outside of the end beam 1. When the crane body 3 moves toward the end beam 1, the crane body 3 first contacts the anti-collision plate 71. The curved anti-collision plate 71 can effectively avoid collision between the crane body 3 and the end beam 1. When the inertia of the crane body 3 is large, the driving portion 733 and the support portion 732 cooperate with each other to gradually increase the pulling force on the two sets of sliding blocks 722, thereby increasing the elastic thrust of the anti-collision plate 71 and effectively avoiding collision between the crane body 3 and the end beam 1. After the collision crisis is resolved, the support portion 732 releases the tension restriction on the sliding block 722, and the anti-collision plate 71 is no longer under pressure. The anti-collision plate 71 is in a relaxed state in the transverse groove 721, which can effectively extend the service life of the anti-collision plate 71. If the anti-collision plate 71 is in a compressed and bent state for a long time, not only will the service life of the anti-collision plate 71 be shortened, but the elastic thrust of the anti-collision plate 71 will also gradually decrease.

[0039] like Figure 1 , Figure 2 , Figure 3, Figure 6 , Fig. 9 As shown, as a preferred embodiment of the present invention, the support portion 732 includes a storage groove 7321 opened upwardly on the bottom wall of the end beam 1, and multiple groups of counterweight plates 731 are sequentially arranged in the storage groove 7321 along the vertical direction. The two opposite side walls of the storage groove 7321 are respectively provided with multiple groups of side grooves 7323 along the vertical direction. Support plates 7324 are slidably installed in the side grooves 7323. The support plates 7324 extend into the storage groove 7321 and support the counterweight plates 731. Extrusion springs 7325 are fixedly installed in the side grooves 7323. The telescopic end of the extrusion spring 7325 is connected to the support plate 7324, and a connecting groove 7322 connected to the storage groove 7321 is downwardly opened in the middle of the bottom wall of the transverse groove 721. Except for the lowest counterweight plate 731, multiple groups of counterweight plates 731 are respectively opened in the middle with through holes 7326, and the side walls of the two groups of sliding blocks 722 are respectively fixed with first pulling ropes 7327, and the end of the first pulling rope 7327 away from the sliding block 722 passes through the connecting groove 7322 and the through hole 7326 and is connected to the lowest counterweight plate 731.

[0040] Initially, the extrusion spring 7325 applies a thrust to the support plate 7324, and the support plates 7324 on both sides extend into the storage slot 7321 and support the counterweight plate 731. When anti-collision protection is needed, the drive unit 733 first controls the support plate 7324 in the lowermost side slot 7323 to apply a pulling force, and the support plate 7324 retracts into the side slot 7323. At this time, the lowermost counterweight plate 731 and the support plate 7324 are separated from each other, and the counterweight plate 731 falls freely. The counterweight plate 731 cooperates with the first pulling rope 7327 to pull the two sets of sliding blocks 722 to move relative to each other in the horizontal slot 721. When the inertia of the vehicle body 3 moving toward the end beam 1 is relatively large, the driving part 733 gradually applies pulling force to the support plates 7324 in the multiple groups of side grooves 7323 from bottom to top. At this time, the multiple groups of counterweight plates 731 in the storage groove 7321 fall down from bottom to top in sequence, and the upper counterweight plate 731 falls to the surface of the lowest counterweight plate 731. The multiple groups of counterweight plates 731 cooperate with each other under the action of gravity, and can gradually increase the pulling force on the two groups of sliding blocks 722.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9As shown, as a preferred embodiment of the present invention, the driving part 733 includes transverse holes 7331 opened inwardly from the side wall of the end beam 1 and respectively located on both sides of the storage groove 7321, and the inner bottom walls of multiple groups of side grooves 7323 are respectively opened inwardly with wire grooves 7332 connected to the transverse holes 7331, and the end of the support plate 7324 located in the side groove 7323 is fixedly installed with a second pulling rope 7333, and the end of the second pulling rope 7333 away from the support plate 7324 passes through the wire groove 7332 and extends into the transverse hole 7331 and is fixedly installed with a control block 7334, and the control blocks 7334 connected to the second pulling ropes 7333 connected to the support plates 7324 distributed in sequence from bottom to top are distributed in sequence from outside to inside in the transverse hole 7331, and the side wall of the overhead crane body 3 is fixedly installed with a push rod 7335 that cooperates with the transverse hole 7331, and the second pulling rope 7333 is made of elastic material.

[0042] When the crane body 3 moves toward the end beam 1, it drives the push rod 7335 to move synchronously. When the crane body 3 is about to collide, the push rod 7335 is inserted into the horizontal hole 7331 and pushes the outermost control block 7334 to move in the horizontal hole 7331. The control block 7334 cooperates with the second pulling rope 7333 to pull the lowermost support plate 7324 toward the side groove 7323. When the inertia of the crane body 3 is large, the push rod 7335 pushes multiple groups of control blocks 7334 to move in the horizontal hole 7331 in turn. The multiple groups of control blocks 7334 cooperate with the second pulling rope 7333 to pull the multiple groups of support plates 7324 distributed from bottom to top into the side groove 7323 in turn. At this time, the multiple groups of counterweight plates 731 fall down in turn, thereby gradually increasing the pulling force on the sliding block 722.

[0043] like Figure 2 , Figure 4 , Figure 5 As shown in FIG. 6 , as a preferred embodiment of the present invention, a vertical rod 8 is fixedly installed in the limiting groove 622, and the limiting block 623 is slidably connected with the vertical rod 8 along the vertical direction. The vertical rod 8 can effectively increase the stability of the limiting block 623 when it moves.

[0044] like Figure 6 , Figure 8 , Fig. 9 As shown, as a preferred embodiment of the present invention, a limit rod 9 distributed in the horizontal direction is fixedly installed in the transverse groove 721, and the sliding block 722 is slidably connected to the limit rod 9. The limit rod 9 can effectively improve the stability of the sliding block 722 when sliding in the transverse groove 721.

[0045] like Figure 6As shown in FIG. 1 , as a preferred embodiment of the present invention, a protection wheel 10 that cooperates with the first pulling rope 7327 is rotatably installed in the connection groove 7322. The protection wheel 10 can effectively reduce the wear of the first pulling rope 7327 when it moves.

[0046] like Figure 6 As shown, as a preferred embodiment of the present invention, one end of the support plate 7324 extending outside the side groove 7323 is configured as an inclined structure.

[0047] When the anti-collision spring plate 71 applies thrust to the crane body 3 to make the crane body 3 move away from the end beam 1, the collision risk is eliminated. The staff pushes the counterweight plate 731 to move into the storage slot 7321 in turn, and the inclined support plate 7324 can conveniently control the counterweight plate 731 to move above the support plate 7324.

[0048] The working principle of the present invention is: initially, the control disk 632 is at the bottom wall of the overhead crane body 3, and the electromagnetic plate 633 adsorbs and positions the control disk 632 through magnetic attraction. The control disk 632 cooperates with the connecting rod 631 to support and position the innermost protective ring 61. Through the cooperation of multiple groups of limit grooves 622 and limit blocks 623, multiple groups of protective rings 61 can be controlled to be sequentially connected from the inside to the outside and the whole is in the storage groove 621.

[0049] When lifting materials, the winding assembly winds and unwinds the lifting rope 54 and adjusts the height of the hook 52. When the hook 52 moves to a low place, the hook 52 is used to suspend the material. The lifting rope 54 drives the hook 52 to move upward and drives the material to move upward synchronously. When lifting materials, the controller cuts off the power to the electromagnetic plate 633, and the electromagnetic plate 633 releases the suction force on the control panel 632. Under the action of gravity, multiple sets of protective rings 61 fall in turn in the storage groove 621 and are sleeved on the outside of the lifting rope 54. When the crane body 3 moves horizontally on the surface of the beam 2, it drives the lifting rope 54 and the material to move synchronously. During movement, the lifting rope 54 and the material are prone to swing due to inertia or external force. The overall swing amplitude of the lifting rope 54 is within the protective ring 61. Multiple groups of protective rings 61 cooperate with each other to effectively reduce the swing amplitude of the lifting rope 54 and the material during lifting, thereby effectively improving the stability of the material during lifting, and effectively avoiding the collision of the material with the brackets 4 on both sides or other external equipment during lifting.

[0050] When the crane body 3 moves toward the end beam 1, it drives the push rod 7335 to move synchronously. When the crane body 3 is about to collide, the push rod 7335 is inserted into the horizontal hole 7331 and pushes the outermost control block 7334 to move in the horizontal hole 7331. The control block 7334 cooperates with the second pulling rope 7333 to pull the lowermost support plate 7324 toward the side groove 7323. At this time, the lowermost counterweight plate 731 and the support plate 7324 are separated from each other, and the counterweight plate 731 falls freely. The counterweight plate 731 cooperates with the first pulling rope 7327 to pull the two sets of sliding blocks 722 to move relative to each other in the horizontal groove 721. At this time, the two sets of sliding blocks 722 apply thrust to the anti-collision spring plate 71, so that the anti-collision spring plate 71 forms a curved structure and extends to the outside of the end beam 1. When the crane body 3 moves toward the end beam 1, the crane body 3 first contacts the anti-collision spring plate 71. The curved anti-collision spring plate 71 can effectively avoid collision between the crane body 3 and the end beam 1. When the inertia of the crane body 3 is large, the push rod 7335 pushes the multiple control blocks 7334 to move in the horizontal hole 7331 in turn. 34 cooperates with the second pulling rope 7333 to pull the multiple groups of support plates 7324 distributed from bottom to top into the side groove 7323 in sequence. At this time, the multiple groups of counterweight plates 731 fall down in sequence, and the upper counterweight plate 731 falls to the surface of the lowest counterweight plate 731. The multiple groups of counterweight plates 731 cooperate with each other under the action of gravity, which can gradually increase the pulling force on the two groups of sliding blocks 722, thereby increasing the elastic thrust of the anti-collision spring plate 71, and effectively avoiding the collision between the crane body 3 and the end beam 1. After the collision crisis is resolved, the staff pushes the counterweight plate 731 to move into the storage groove 7321 in sequence, and the support plate 7324 with an inclined structure can conveniently control the counterweight plate 731 to move to the top of the support plate 7324. The tension restriction on the sliding block 722 is released, the anti-collision spring plate 71 is released from the compressed state, and the anti-collision spring plate 71 is in a relaxed state in the transverse groove 721, which can effectively extend the service life of the anti-collision spring plate 71. If the anti-collision spring plate 71 is in a compressed and bent state for a long time, not only will the service life of the anti-collision spring plate 71 be shortened, but the elastic thrust of the anti-collision spring plate 71 will also gradually decrease.

[0051] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An anti-collision protection device for an overhead crane, comprising two groups of end beams, the two groups of end beams are relatively distributed, brackets are fixedly installed on both sides of the bottom wall of the end beams, a cross beam is fixedly installed between the two groups of end beams, an overhead crane body is slidably installed on the surface of the cross beam, a lifting assembly is arranged on the bottom wall of the overhead crane body, the lifting assembly includes a fixed frame, a hook is arranged on the bottom wall of the fixed frame, a guide wheel is rotatably installed in the middle of the fixed frame, a lifting rope is arranged in the overhead crane body, the lifting rope passes through the outside of the guide wheel, and a reeling assembly cooperating with the lifting rope is arranged in the overhead crane body, characterized in that: The crane body is provided with a first anti-collision mechanism that cooperates with the lifting rope, the first anti-collision mechanism includes a protective ring, a first positioning component and a first adjusting component, the protective ring is provided with multiple groups, the first positioning component is located on the bottom wall of the crane body and is connected to the multiple groups of protective rings, the first positioning component is used to control the multiple groups of protective rings to be sequentially sleeved from the inside to the outside, the first adjusting component is connected to the protective ring, and the first adjusting component adjusts the relative positions between the multiple groups of protective rings on the outside of the lifting rope by cooperating with the first positioning component, the end beam surface is provided with a second anti-collision mechanism that cooperates with the crane body, the second anti-collision mechanism includes an anti-collision spring plate, a second positioning component and a second adjusting component Part, the second positioning component is located at the two side walls opposite to each other of the two groups of end beams and is connected to the anti-collision spring plate, the second positioning component is used to support and position the anti-collision spring plate at the side wall of the end beam, the second adjustment component includes a counterweight plate, a support part and a drive part, the counterweight plate is provided with multiple groups, the support part is located inside the end beam and connected to the counterweight plate, the support part is used to store the counterweight plate inside the end beam, the drive part is located in the crane body and connected to the support part, when the crane body moves toward the end beam and is about to collide, the drive part controls the multiple groups of counterweight plates to fall in turn under the action of gravity by cooperating with the support part, thereby gradually increasing the elastic thrust of the anti-collision spring plate on the crane body.

2. The overhead travelling crane anti-collision protection device according to claim 1, characterized in that: The first positioning assembly includes an annular receiving groove opened upward from the bottom wall of the overhead crane body, the receiving groove is sleeved on the outside of the lifting rope, and multiple groups of protective rings are sequentially sleeved from the inside to the outside and are located in the receiving groove. The side walls of the receiving groove and the inner walls of the multiple groups of protective rings are respectively provided with multiple groups of limit grooves distributed in the vertical direction, and the outer walls of the multiple groups of protective rings are fixedly installed with limit blocks, and the limit blocks are slidably connected to the outer limit grooves along the vertical direction.

3. The overhead travelling crane anti-collision protection device according to claim 2, characterized in that: The first adjustment component includes a control disk, which is made of magnetic material. The bottom end of the innermost protective ring extends to the outside of the crane body. Multiple groups of connecting rods are fixedly installed on the inner bottom wall of the innermost protective ring. The ends of the multiple groups of connecting rods facing the axis of the protective ring are commonly connected to the control disk. An electromagnetic plate that cooperates with the control disk is fixedly installed on the bottom wall of the crane body, and a controller that cooperates with the electromagnetic plate is arranged inside the crane body.

4. The overhead crane anti-collision protection device according to claim 1, characterized in that: The second positioning component includes two groups of transverse grooves respectively opened on the two side walls opposite to each other of the end beams, two groups of relatively distributed sliding blocks are slidably installed in the transverse grooves, the anti-collision spring plate is located in the transverse grooves, and the two ends of the anti-collision spring plate are respectively connected to the sliding blocks on both sides.

5. The overhead travelling crane anti-collision protection device according to claim 4, characterized in that: The support portion includes a storage groove opened upward from the bottom wall of the end beam, and multiple groups of counterweight plates are successively arranged in the storage groove along the vertical direction. Multiple groups of side grooves are respectively opened on the opposite side walls of the storage groove along the vertical direction. Support plates are slidably installed in the side grooves, and the support plates extend into the storage grooves and support the counterweight plates. Extrusion springs are fixedly installed in the side grooves, and the telescopic ends of the extrusion springs are connected to the support plates. A connecting groove connected to the storage groove is opened downwardly in the middle part of the bottom wall of the transverse groove. Except for the lowest counterweight plate, through holes are respectively opened in the middle of the multiple groups of counterweight plates. First pulling ropes are respectively fixedly installed on the side walls of the two groups of sliding blocks, and the end of the first pulling rope away from the sliding block passes through the connecting groove and the through hole and is connected to the lowest counterweight plate.

6. The overhead travelling crane anti-collision protection device according to claim 5, characterized in that: The driving part includes transverse holes opened inwardly from the side walls of the end beam and located on both sides of the storage groove, and wire grooves connected to the transverse holes are opened inwardly from the bottom walls of multiple groups of side grooves respectively. A second pulling rope is fixedly installed at one end of the support plate located in the side groove, and the end of the second pulling rope away from the support plate passes through the wire groove and extends into the transverse hole and is fixedly installed with a control block. The control blocks connected to the second pulling ropes connected to the support plates distributed in sequence from bottom to top are distributed in sequence from outside to inside in the transverse hole, and a push rod cooperating with the transverse hole is fixedly installed on the side wall of the overhead crane body, and the second pulling rope is made of elastic material.

7. The overhead travelling crane anti-collision protection device according to claim 2, characterized in that: A vertical rod is fixedly installed in the limiting groove, and the limiting block is slidably connected to the vertical rod along the vertical direction.

8. The overhead travelling crane anti-collision protection device according to claim 4, characterized in that: A limiting rod distributed in the horizontal direction is fixedly installed in the transverse groove, and the sliding block is slidably connected to the limiting rod.

9. The overhead travelling crane anti-collision protection device according to claim 5, characterized in that: A protection wheel that cooperates with the first pulling rope is rotatably installed in the connecting groove.

10. The overhead travelling crane anti-collision protection device according to claim 5, characterized in that: One end of the support plate extending outside the side groove is arranged as an inclined structure.

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