A cable crane for safe bridge construction

Abstract

The present invention belongs to the technical field of crane equipment, and discloses a cable crane for safe bridge construction, and its technical key points are: comprising a crossbeam, support plates are fixedly installed at both ends of the crossbeam, a bearing block is slidably installed on the surface of the crossbeam, a crane is fixedly installed on the surface of the bearing block, an output end of the crane is connected to a cable, a first protective mechanism cooperating with the cable is arranged in the bearing block, the first protective mechanism includes a protective ring, a first positioning assembly and a first adjusting assembly, a second protective mechanism is arranged at the side wall of the support plate, the second protective mechanism includes a shock-absorbing spring, a second positioning assembly and a second adjusting assembly, so as to solve the problem that the existing cable crane lacks necessary protective measures, and the cable will swing around under the action of inertia when hoisting goods, resulting in poor stability when the cable hoists goods.

Description

Technical Field

[0001] The invention relates to the technical field of crane equipment, in particular to a cable crane for safe bridge construction. Background Art

[0002] A cable crane is a crane that uses flexible steel cables as large-span overhead load-bearing components, on which a load-carrying trolley with suspended heavy objects can travel back and forth. It has vertical and horizontal transportation functions and is used for lifting, transporting, loading and unloading goods within a larger space.

[0003] Most of the bridge construction in my country is carried out in mountainous canyon areas. Cable cranes are almost the only available construction solution in the riverbed concrete construction in mountainous canyon areas. Therefore, cable cranes are widely used as the main lifting equipment in the construction of bridge projects in my country.

[0004] Existing cable cranes lack necessary protective measures when in use. When the cable is moving for lifting, the lifted cargo will drive the cable to swing around under the action of inertia, resulting in poor stability when the cable is lifting cargo. When the lifted cargo is close to the support frames on both sides, the cargo is prone to collide with the support frames, resulting in poor use effect. Summary of the invention

[0005] The object of the present invention is to provide a cable crane for safe bridge construction to solve the problems raised in the above-mentioned background technology.

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

[0007] A cable crane for safe bridge construction comprises a crossbeam, support plates are fixedly installed at both ends of the crossbeam, a bearing block is slidably installed on the surface of the crossbeam, a crane is fixedly installed on the surface of the bearing block, a cable is connected to the output end of the crane, a limit column is fixedly installed on the bottom end of the cable, a hook is arranged at the bottom end of the limit column, a translation component cooperating with the bearing block is arranged on the surface of the crossbeam, the translation component is used to control the bearing block to slide on the surface of the crossbeam, a first protective mechanism cooperating with the cable is arranged in the bearing block, the first protective mechanism comprises a protective ring, a first positioning component and a first adjusting component, the protective ring is sleeved on the outside of the cable, and the first positioning component is The component is located in the bearing block and is connected to the protective ring. The first adjusting component is connected to the first positioning component. The first adjusting component is used to adjust the relative position of the protective ring and the cable by cooperating with the first positioning component. A second protective mechanism is arranged on the side wall of the support plate. The second protective mechanism includes a shock-absorbing spring, a second positioning component and a second adjusting component. The second positioning component is located on the surface of the support plate and is connected to the shock-absorbing spring. The second adjusting component is connected to the protective ring and the second positioning component. When the protective ring moves in the vertical direction outside the cable, the second adjusting component controls the synchronous movement of the shock-absorbing spring in the vertical direction by cooperating with the second positioning component.

[0008] As a further solution of the present invention: the translation assembly includes a transverse groove opened in the cross beam, the bearing block is slidably installed in the transverse groove, a threaded rod is rotatably installed in the transverse groove, the threaded rod is spirally connected to the bearing block, one end of the threaded rod extends to the outside of the cross beam and is connected to a motor.

[0009] As a further solution of the present invention: the first positioning assembly includes storage cavities respectively opened around the bottom wall of the supporting block, and multiple groups of sleeves are installed in the storage cavities, the diameters of the multiple groups of sleeves decrease from the outside to the inside and are sleeved, and a center column is slidably installed in the inner cavity of the innermost sleeve, and a connecting rod is fixedly installed at the bottom end of the center column, and the end of the connecting rod away from the center column is connected to the protective ring.

[0010] As a further solution of the present invention: the first adjustment component includes multiple groups of guide grooves respectively opened on the inner wall of the storage cavity and multiple groups of inner walls of the sleeve, and guide blocks are fixedly installed on the outer wall of the sleeve and the surface of the center column, respectively. The guide blocks are slidingly connected to the outer guide grooves along the vertical direction, the protective ring is made of magnetic material, and an electromagnetic sheet that cooperates with the protective ring is fixedly installed on the bottom wall of the supporting block, and a controller is arranged inside the supporting block, and the controller is electrically connected to the electromagnetic sheet.

[0011] As a further solution of the present invention: the second positioning assembly includes a vertical cavity opened on the surface of the support plate, a sliding block is slidably installed in the vertical cavity along the vertical direction, a bracket is fixedly installed on the side wall of the sliding block, the end of the bracket away from the sliding block is vertically downward and fixedly installed with a side plate, and the shock-absorbing spring is fixedly installed on the surface of the side plate.

[0012] As a further solution of the present invention: the second adjustment component includes a through hole opened on the surface of the sliding block, and an adjustment rod is fixedly installed on the side wall of the protective ring, and the adjustment rod passes through the through hole.

[0013] As a further solution of the present invention: a limiting groove is provided on the side wall of the vertical cavity, and a limiting block slidably connected to the limiting groove is fixedly mounted on the side wall of the sliding block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the first positioning component and the first adjusting component to cooperate with each other, the relative position of the protective ring and the cable can be conveniently adjusted, thereby protecting the cable from swinging, and effectively improving the stability of the cargo during lifting; by setting the second positioning component and the second adjusting component to cooperate with each other, the relative position of the shock-absorbing spring and the lifted cargo can be conveniently adjusted, effectively avoiding the collision between the lifted cargo and the support plates on both sides. This solves the problem that the existing cable crane lacks necessary protective measures, and the lifted cargo will drive the cable to swing around under the action of inertia, resulting in poor stability when the cable is lifting cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a cable crane for safe bridge construction provided in an embodiment of the present invention Figure 1 .

[0016] Figure 2 A schematic diagram of the three-dimensional structure of a cable crane for safe bridge construction provided in an embodiment of the present invention Figure 2 .

[0017] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of A.

[0018] Figure 4 It is a schematic diagram of the main structure of a cable crane for safe bridge construction provided in an embodiment of the present invention.

[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of B.

[0020] Figure 6 for Figure 4 Schematic diagram of the enlarged structure of C in the figure.

[0021] Figure 7for Figure 4 Schematic diagram of the enlarged structure of D in the figure.

[0022] Among them: 1-beam, 2-support plate, 3-bearing block, 4-crane, 41-cable, 42-limiting column, 43-hook, 5-translation component, 51-transverse groove, 52-threaded rod, 53-motor, 6-first protection mechanism, 61-protection ring, 62-first positioning component, 621-storage cavity, 622-sleeve, 623-center column, 624-connecting rod, 63-first adjustment component, 631-guide groove, 632-guide block, 633-electromagnetic sheet, 634-controller, 7-second protection mechanism, 71-shock-absorbing spring, 72-second positioning component, 721-vertical cavity, 722-sliding block, 723-bracket, 724-side plate, 73-second adjustment component, 731-through hole, 732-adjusting rod, 8-limiting groove. DETAILED DESCRIPTION

[0023] 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.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6As shown, it is a structural diagram of a cable crane for safe bridge construction provided by an embodiment of the present invention, comprising a crossbeam 1, support plates 2 are fixedly installed at both ends of the crossbeam 1, a bearing block 3 is slidably installed on the surface of the crossbeam 1, a crane 4 is fixedly installed on the surface of the bearing block 3, a cable 41 is connected to the output end of the crane 4, a limiting column 42 is fixedly installed on the bottom end of the cable 41, a hook 43 is arranged at the bottom end of the limiting column 42, a translation component 5 cooperating with the bearing block 3 is arranged on the surface of the crossbeam 1, the translation component 5 is used to control the bearing block 3 to slide on the surface of the crossbeam 1, a first protection mechanism 6 cooperating with the cable 41 is arranged in the bearing block 3, the first protection mechanism 6 includes a protection ring 61, a first positioning component 62 and a first adjustment component 63, the protection ring 61 is sleeved on the outside of the cable 41, The first positioning component 62 is located in the supporting block 3 and is connected to the protective ring 61. The first adjusting component 63 is connected to the first positioning component 62. The first adjusting component 63 is used to adjust the relative position of the protective ring 61 and the cable 41 by cooperating with the first positioning component 62. A second protective mechanism 7 is provided at the side wall of the support plate 2. The second protective mechanism 7 includes a shock-absorbing spring 71, a second positioning component 72 and a second adjusting component 73. The second positioning component 72 is located on the surface of the support plate 2 and is connected to the shock-absorbing spring 71. The second adjusting component 73 is connected to the protective ring 61 and the second positioning component 72. When the protective ring 61 moves in the vertical direction outside the cable 41, the second adjusting component 73 controls the synchronous movement of the shock-absorbing spring 71 in the vertical direction by cooperating with the second positioning component 72.

[0026] Initially, the first positioning component 62 and the first adjusting component 63 cooperate with each other to position the protective ring 61. At this time, the protective ring 61 fits against the bottom wall of the bearing block 3. The crane 4 unwinds the cable 41 and adjusts the height of the limit column 42 and the hook 43. When the hook 43 drops to the lowest point, the hook 43 can lift the goods. When the cable 41 lifts the goods, under the action of the inertia of the goods, the cable 41 will swing around, resulting in poor stability. The first positioning component 62 and the first adjusting component 63 cooperate with each other to control the protective ring 61 to move vertically downward and to the upper surface of the limit column 42. The protective ring 61 can limit the swing amplitude of the cable 41. The cable 41 can only swing in the inner cavity of the protective ring 61, which can effectively improve the stability of the cable 41 and the goods during lifting. When the cable 41 pulls the limit column 42 to move upward, it will push the protective ring 61 to move upward synchronously. When the protective ring 61 moves in the vertical direction, the second adjustment component 73 cooperates with the second positioning component 72 to control the shock-absorbing spring 71 to move synchronously in the vertical direction. When the translation component 5 controls the load-bearing block 3 to approach the support plate 2 on the surface of the beam 1, the shock-absorbing spring 71 and the hoisted cargo are at the same height. When the cargo moves toward the support plate 2, the cargo will first contact the shock-absorbing spring 71 even when it swings. The shock-absorbing spring 71 can effectively offset the impact force of the cargo on the support plate 2, thereby avoiding damage caused by collision between the cargo and the support plate 2.

[0027] like Figure 1 , Figure 2 , Figure 4 As shown, as a preferred embodiment of the present invention, the translation assembly 5 includes a transverse groove 51 opened in the cross beam 1, the supporting block 3 is slidably installed in the transverse groove 51, and a threaded rod 52 is rotatably installed in the transverse groove 51. The threaded rod 52 is spirally connected to the supporting block 3, and one end of the threaded rod 52 extends to the outside of the cross beam 1 and is connected to a motor 53.

[0028] When lifting the goods, the crane 4 reels in the cable 41 and controls the hook 43 to move in the vertical direction. When the goods need to be controlled to move horizontally, the motor 53 drives the threaded rod 52 to rotate, and the threaded rod 52 pushes the bearing block 3 to move in the horizontal groove 51. The bearing block 3 drives the cable 41 to move synchronously in the horizontal direction, so that the position of the goods can be conveniently adjusted in the horizontal direction.

[0029] like Figure 2 , Figure 3 , Figure 5 , Figure 6As shown, as a preferred embodiment of the present invention, the first positioning component 62 includes a receiving cavity 621 respectively opened around the bottom wall of the supporting block 3, and multiple groups of sleeves 622 are installed in the receiving cavity 621. The diameters of the multiple groups of sleeves 622 decrease from the outside to the inside and are sleeved. A center column 623 is slidably installed in the inner cavity of the innermost sleeve 622, and a connecting rod 624 is fixedly installed at the bottom end of the center column 623. The end of the connecting rod 624 away from the center column 623 is connected to the protective ring 61.

[0030] Initially, the first adjustment component 63 positions the protection ring 61. At this time, the protection ring 61 and the bottom wall of the bearing block 3 are in contact with each other. The first adjustment component 63 controls the multiple sets of sleeves 622 to be sleeved in sequence and are in the storage cavity 621 as a whole. At this time, the center column 623 is sleeved in the innermost sleeve 622. When it is necessary to protect the cable 41 from swinging, the first adjustment component 63 releases the restriction on the protection ring 61, and the protection ring 61 moves downward under the action of gravity. The first adjustment component 63 controls the center column 623 and the multiple sets of sleeves 622 to move out of the storage cavity 621 in sequence. The multiple sets of sleeves 622 extend outward in sequence to position the protection ring 61, so that the protection ring 61 can only move in the vertical direction. The protection ring 61 can limit the swing amplitude of the cable 41.

[0031] like Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, as a preferred embodiment of the present invention, the first adjustment component 63 includes multiple groups of guide grooves 631 respectively opened on the inner wall of the storage cavity 621 and the inner walls of multiple groups of sleeves 622, and the outer wall of the sleeve 622 and the surface of the center column 623 are respectively fixedly installed with guide blocks 632, and the guide blocks 632 are slidably connected with the outer guide grooves 631 along the vertical direction. The protective ring 61 is made of magnetic material, and the bottom wall of the supporting block 3 is fixedly installed with an electromagnetic sheet 633 that cooperates with the protective ring 61, and a controller 634 is arranged inside the supporting block 3, and the controller 634 is electrically connected with the electromagnetic sheet 633.

[0032] Initially, the electromagnetic sheet 633 uses magnetic attraction to position the protection ring 61. At this time, the protection ring 61 is stably located at the bottom wall of the bearing block 3. At this time, the guide block 632 is at the top of the guide groove 631. The multiple groups of guide blocks 632 cooperate with the guide groove 631 to support and position the multiple groups of sleeves 622. The multiple groups of sleeves 622 are sequentially sleeved and located in the storage cavity 621. When it is necessary to protect the cable 41, the controller 634 cuts off the power to the electromagnetic sheet 633, and the electromagnetic sheet 633 releases the magnetic attraction to the protection ring 61, and the protection ring 61 moves vertically downward. At this time, the guide block 632 slides to the bottom of the guide groove 631. The guide block 632 cooperates with the guide groove 631 to control the multiple groups of sleeves 622 to extend sequentially and position the protection ring 61.

[0033] like Figure 1 , Figure 2 , Figure 4 , Figure 7 As shown, as a preferred embodiment of the present invention, the second positioning assembly 72 includes a vertical cavity 721 opened on the surface of the support plate 2, and a sliding block 722 is slidably installed in the vertical cavity 721, and a bracket 723 is fixedly installed on the side wall of the sliding block 722, and one end of the bracket 723 away from the sliding block 722 is vertically downward and fixedly installed with a side plate 724, and the shock-absorbing spring 71 is fixedly installed on the surface of the side plate 724.

[0034] The second adjusting component 73 positions the sliding block 722 so that the sliding block 722 and the protective ring 61 are at the same height. Initially, the protective ring 61 is at the bottom wall of the supporting block 3, and the sliding block 722 is at the top of the vertical cavity 721. The sliding block 722 cooperates with the bracket 723 to position the side plate 724 and the shock-absorbing spring 71. When the protective ring 61 moves in the vertical direction, the second adjusting component 73 controls the sliding block 722 to move synchronously in the vertical cavity 721. The sliding block 722 cooperates with the bracket 723 to drive the side plate 724 and the shock-absorbing spring 71 to move synchronously in the vertical direction, so that the shock-absorbing spring 71 and the hoisted cargo are at the same height. The shock-absorbing spring 71 provides shock-absorbing protection for the hoisted cargo, effectively preventing the cargo from colliding with the support plates 2 on both sides.

[0035] like Figure 1 , Figure 2 , Figure 4 , Figure 7 As shown, as a preferred embodiment of the present invention, the second adjustment component 73 includes a through hole 731 opened on the surface of the sliding block 722, and an adjustment rod 732 is fixedly installed on the side wall of the protective ring 61, and the adjustment rod 732 passes through the through hole 731.

[0036] The protective ring 61 and the adjusting rod 732 cooperate with each other to support and position the sliding block 722. When the protective ring 61 moves in the vertical direction, it drives the adjusting rod 732 to move synchronously. The adjusting rod 732 drives the sliding block 722 to move synchronously in the vertical cavity 721. When the supporting block 3 moves in the horizontal direction, it drives the protective ring 61 to move synchronously. The protective ring 61 drives the adjusting rod 732 to move synchronously in the through hole 731.

[0037] like Figure 1 , Figure 4 , Figure 7 As shown, as a preferred embodiment of the present invention, a limiting groove 8 is provided on the side wall of the vertical cavity 721 , and a limiting block slidably connected to the limiting groove 8 is fixedly installed on the side wall of the sliding block 722 .

[0038] The limiting block cooperates with the limiting groove 8 to effectively improve the stability of the sliding block 722 when it moves in the vertical cavity 721 .

[0039] The working principle of the present invention is: initially, the electromagnetic sheet 633 uses magnetic attraction to absorb and position the protective ring 61. At this time, the protective ring 61 is stably located at the bottom wall of the bearing block 3. At this time, the guide block 632 is at the top of the guide groove 631. Multiple groups of guide blocks 632 cooperate with the guide groove 631 to support and position multiple groups of sleeves 622. Multiple groups of sleeves 622 are sequentially sleeved and located in the storage cavity 621. The crane 4 unwinds the cable 41 to adjust the height of the limit column 42 and the hook 43. When the hook 43 drops to the lowest point, the hook 43 can lift the cargo. When the cable 41 lifts the cargo, under the inertia of the cargo, the cable 41 will swing around, resulting in poor stability.

[0040] When it is necessary to protect the cable 41, the controller 634 cuts off the power to the electromagnetic sheet 633, and the electromagnetic sheet 633 releases the magnetic attraction on the protective ring 61, and the protective ring 61 moves vertically downward. At this time, the guide block 632 slides to the bottom end of the guide groove 631, and the guide block 632 cooperates with the guide groove 631 to control the multiple groups of sleeves 622 to extend in sequence and then position the protective ring 61, so that the protective ring 61 can only move in the vertical direction. The protective ring 61 moves vertically downward and moves to the upper surface of the limit column 42. The protective ring 61 can limit the swing amplitude of the cable 41, and the cable 41 can only swing in the inner cavity of the protective ring 61, which can effectively improve the stability of the cable 41 and the cargo during lifting. When the cable 41 pulls the limit column 42 to move upward, it will push the protective ring 61 to move upward synchronously. When the protective ring 61 moves in the vertical direction, it will drive the adjusting rod 732 to move synchronously. The adjusting rod 732 drives the sliding block 722 to move synchronously in the vertical cavity 721. The sliding block 722 cooperates with the bracket 723 to drive the side plate 724 and the shock-absorbing spring 71 to move synchronously in the vertical direction, so that the shock-absorbing spring 71 and the hoisted goods are at the same height. The shock-absorbing spring 71 provides shock-absorbing protection for the hoisted goods, effectively preventing the goods from colliding with the support plates 2 on both sides.

[0041] 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. A cable crane for safe bridge construction, comprising a crossbeam, support plates are fixedly installed at both ends of the crossbeam, a bearing block is slidably installed on the surface of the crossbeam, a crane is fixedly installed on the surface of the bearing block, a cable is connected to the output end of the crane, a limit column is fixedly installed at the bottom end of the cable, and a hook is arranged at the bottom end of the limit column, characterized in that: The surface of the crossbeam is provided with a translation component that cooperates with the bearing block, and the translation component is used to control the bearing block to slide on the surface of the crossbeam. The bearing block is provided with a first protection mechanism that cooperates with the cable, and the first protection mechanism includes a protection ring, a first positioning component and a first adjustment component. The protection ring is sleeved on the outside of the cable, the first positioning component is located in the bearing block and connected to the protection ring, the first adjustment component is connected to the first positioning component, and the first adjustment component is used to adjust the relative position of the protection ring and the cable by cooperating with the first positioning component. The first positioning component includes storage cavities respectively opened around the bottom wall of the bearing block, and multiple storage cavities are installed in the storage cavities. A group of sleeves, multiple groups of sleeves decrease in diameter from the outside to the inside and are sleeved, a center column is slidably installed in the inner cavity of the innermost sleeve, a connecting rod is fixedly installed at the bottom end of the center column, the end of the connecting rod away from the center column is connected to the protective ring, a second protective mechanism is arranged on the side wall of the support plate, the second protective mechanism includes a shock-absorbing spring, a second positioning assembly and a second adjusting assembly, the second positioning assembly is located on the surface of the support plate and is connected to the shock-absorbing spring, the second adjusting assembly is connected to the protective ring and the second positioning assembly, when the protective ring moves in the vertical direction on the outside of the cable, the second adjusting assembly controls the synchronous movement of the shock-absorbing spring in the vertical direction by cooperating with the second positioning assembly.

2. A cable crane for safe bridge construction according to claim 1, characterized in that: The translation assembly includes a transverse groove opened in the cross beam, the bearing block is slidably installed in the transverse groove, a threaded rod is rotatably installed in the transverse groove, the threaded rod is spirally connected to the bearing block, and one end of the threaded rod extends to the outside of the cross beam and is connected to a motor.

3. A cable crane for safe bridge construction according to claim 1, characterized in that: The first adjustment component includes multiple groups of guide grooves respectively opened on the inner wall of the storage cavity and the inner wall of multiple groups of sleeves, and guide blocks are fixedly installed on the outer wall of the sleeve and the surface of the center column respectively. The guide blocks are slidably connected to the outer guide grooves along the vertical direction. The protective ring is made of magnetic material, and an electromagnetic sheet that cooperates with the protective ring is fixedly installed on the bottom wall of the supporting block. A controller is arranged inside the supporting block, and the controller is electrically connected to the electromagnetic sheet.

4. A cable crane for safe bridge construction according to claim 1, characterized in that: The second positioning assembly includes a vertical cavity opened on the surface of the support plate, a sliding block is slidably installed in the vertical cavity along the vertical direction, a bracket is fixedly installed on the side wall of the sliding block, and a side plate is fixedly installed vertically downward at one end of the bracket away from the sliding block, and the shock-absorbing spring is fixedly installed on the surface of the side plate.

5. A cable crane for safe bridge construction according to claim 4, characterized in that: The second adjustment component includes a through hole opened on the surface of the sliding block, and an adjustment rod is fixedly installed on the side wall of the protective ring, and the adjustment rod passes through the through hole.

6. A cable crane for safe bridge construction according to claim 4, characterized in that: The side wall of the vertical cavity is provided with a limiting groove, and the side wall of the sliding block is fixedly mounted with a limiting block which is slidably connected with the limiting groove.

Images