A cable crane lifting spreader for hoisting a basket arch

Abstract

The present invention discloses a cable crane hoisting sling for hoisting a basket arch, comprising a mounting beam, wherein the upper surface end of the mounting beam is provided with a lifting lug, a moving block, a driving member, a driving frame assembly, a steel cable body, an external support assembly, and a limiting assembly; after the hoisting device lifts the basket arch, the driving frame assembly drives the external support assembly to push the steel cable body to move outward, so that the steel cable body drives the basket arch upward to be limited by the limiting assembly. This technical solution is provided with a driving frame assembly, an external support assembly, and a limiting assembly. After the steel cable body is connected to the basket arch and lifted, the driving frame assembly drives the external support assembly to open the steel cable body outward. On the one hand, the steel cable body is tensioned to reduce the shaking amplitude of the basket arch during transportation. On the other hand, the external support assembly enables the basket arch to move upward, and the limiting assembly limits the basket arch, further reducing the shaking of the basket arch during transportation.

Description

Technical Field

[0001] The invention relates to the technical field of crane spreaders, in particular to a cable crane lifting spreader for lifting a basket arch. Background Art

[0002] With the launch of large-scale national infrastructure construction, the number of highway and railway projects has increased year by year, requiring the construction of corresponding large bridges. Conventional lifting machinery cannot meet the lifting needs in remote mountainous areas and on large rivers, and the lifting capacity of cable cranes has also developed from small tonnage to several hundred tons.

[0003] Currently, cable cranes are commonly used in bridge construction. Cable cranes are usually connected to basket arches through steel cables and hooks in the sling. When the cable crane transfers the basket arch through the sling, due to the relatively soft steel cables themselves, external factors or improper operation by the operator can cause the basket arch connected to the sling to shake relative to the sling during transportation. If the shaking is too severe, it is not only easy to collide with surrounding machines or objects, but also easy to make the lifted basket arch unable to be quickly and accurately positioned, reducing work efficiency. To this end, we propose a cable crane lifting sling for lifting basket arches. Summary of the Invention

[0004] The object of the present invention is to provide a cable crane hoisting sling for hoisting a basket arch, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cable crane hoisting sling for hoisting a basket arch comprises a mounting beam, wherein an upper surface end of the mounting beam is provided with a lifting lug, a moving block, a driving member, a driving frame assembly, a steel cable body, an outer support assembly, and a limit assembly;

[0007] There are two groups of moving blocks, which are slidably arranged at both ends of the upper surface of the mounting beam and located inside the lifting ears;

[0008] The driving member is used to drive the two groups of moving blocks to move toward or away from each other along the length direction of the mounting beam;

[0009] The driving frame assembly is arranged on the moving block;

[0010] The steel cable body is sleeved on the outer wall of the driving frame assembly, and the steel cable body has two movable ends for connecting to the basket arch;

[0011] The outer support assembly and the limit assembly are both arranged on the driving frame assembly;

[0012] After the hoist lifts the basket arch, the driving frame assembly drives the outer support assembly to push the steel cable body to move outward, so that the steel cable body drives the basket arch upward to pass through the limit assembly.

[0013] A further improvement is that the driving frame assembly includes a U-shaped seat arranged on the moving block, a movable frame 1 slidingly sleeved on the outside of the U-shaped seat, a saddle arranged on the upper surface of the movable frame 1, and a guide rod with one end connected to the upper surface of the U-shaped seat and the other end movably passing through the movable frame 1; the guide rods are provided with multiple groups, and the movable frame 1 moves toward the U-shaped seat along the guide rods under the gravity of the basket arch, and the outer wall of the guide rods is provided with a spring 1 for assisting the movable frame 1 in resetting.

[0014] A further improvement is that the external support assembly includes a support frame, a transmission member provided on the U-shaped seat, and a guide wheel member provided at one end of the support frame for fitting with the outer wall of the steel cable body; the support frame is provided with two groups, which are respectively located on the two side walls of the U-shaped seat, and the other end of the support frame is rotatably connected to the side wall of the U-shaped seat through the mounting seat and the rotating shaft, and the transmission member drives the rotating shaft to drive the support frame to flip when the movable frame moves downward.

[0015] A further improvement is that the transmission member 1 includes a driven gear 1 which is rotated on the upper side wall of the U-shaped seat through an axis, a rotating shaft 2 which is rotatably arranged on the side wall of the mounting seat, a sprocket transmission group for connecting the axis and the rotating shaft 2, and a gear group for connecting the rotating shaft 2 and the rotating shaft 1; the side wall of the movable frame 1 is provided with a tooth segment for driving the driven gear 1 to rotate.

[0016] A further improvement is that the limit assembly includes two groups of movable frames 2 respectively slidably sleeved on the two side walls of the U-shaped seat, a contact plate connecting the two groups of movable frames 2, and a spring 2 connecting the movable frame 2 and the U-shaped seat; both ends of the contact plate are provided with limit frames through a rotating shaft 3, and a transmission member 2 is provided on the movable frame 2, and the transmission member 2 is used to drive the rotating shaft 3 to drive the limit frame to flip inward when the contact plate moves upward.

[0017] A further improvement is that the transmission member 2 includes a driven gear 2 provided on the outer wall of the rotating shaft 3 and a rack provided on the bottom of the U-shaped seat for driving the driven gear 2 to rotate.

[0018] A further improvement is that the limiting frame is provided with an elastic block for contacting the basket arch.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present technical solution is provided with a driving frame assembly, an external support assembly and a limiting assembly. After the steel cable body is connected to the basket arch and lifted, the driving frame assembly drives the external support assembly to open the steel cable body outward. On the one hand, the steel cable body is tensioned to reduce the shaking amplitude of the basket arch during transportation. On the other hand, the external support assembly enables the basket arch to move upward. When the basket arch moves upward, the limiting assembly limits the basket arch, further reducing the shaking of the basket arch during transportation, avoiding the basket arch from colliding with surrounding machines or objects, and facilitating the subsequent rapid and accurate positioning of the lifted basket arch, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Another perspective structural diagram;

[0023] Figure 3 Schematic diagram of the structure of the drive frame assembly in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the limiting component in the present invention.

[0025] In the figure: 1. Mounting beam; 2. Lifting ear; 3. Moving block; 4. U-shaped seat; 5. Driving member; 6. Movable frame 1; 7. Guide rod; 8. Spring 1; 9. Cable saddle; 10. Cable body; 11. Rotating shaft 1; 12. Support frame; 13. Guide wheel; 14. Driven gear 1; 15. Sprocket transmission group; 16. Rotating shaft 2; 17. Gear group; 18. Movable frame 2; 19. Contact plate; 20. Limiting frame; 21. Rack; 22. Spring 2; 23. Elastic block. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1-2 A cable crane hoisting sling for hoisting a basket arch comprises a mounting beam 1, wherein the upper end of the mounting beam 1 is provided with a lifting lug 2 for facilitating connection with an external cable crane so that the external cable crane can control the sling;

[0029] It also includes a moving block 3, a driving member 5, a driving frame assembly, a steel cable body 10, an external support assembly and a limit assembly;

[0030] There are two groups of moving blocks 3, which are slidably arranged at both ends of the upper surface of the mounting beam 1 and located inside the lifting ears 2; for example, a sliding groove is opened on the upper surface of the mounting beam 1, and the moving blocks 3 are slidably arranged in the sliding groove. The vertical cross-sections of the moving blocks 3 and the sliding groove can preferably be T-shaped;

[0031] The driving member 5 is used to drive the two groups of moving blocks 3 to move closer to or away from each other along the length direction of the mounting beam 1; it is convenient to adjust the use position of the steel cable body 10, for example, the driving member 5 is a bidirectional electric device or a motor, a bidirectional screw, etc.

[0032] The driving frame assembly is provided on the moving block 3 and is used to support the steel cable body 10 and to drive the outer support assembly;

[0033] The cable body 10 is sleeved on the outer wall of the driving frame assembly. The cable body 10 has two movable ends for connecting to the basket arch. Specifically, for example, a hook head can be installed at the movable end of the cable body 10 to connect the basket arch through the hook head, of course, this method is not limited to this method.

[0034] The outer support assembly and the limit assembly are both arranged on the driving frame assembly;

[0035] After the hoisting device lifts the basket arch, the driving frame assembly drives the outer support assembly to push the steel cable body 10 outward, so that the steel cable body 10 drives the basket arch upward and passes through the limit assembly. Specifically, after the basket arch is lifted, the driving frame assembly moves downward under the gravity of the basket arch. The movement of the driving frame assembly drives the outer support assembly to push the steel cable body 10 outward. The outward movement of the steel cable body 10 drives the basket arch upward and passes through the limit assembly, thereby preventing the basket arch from shaking significantly during lifting.

[0036] Preferably, the driving frame assembly of this embodiment includes a U-shaped seat 4 provided on the moving block 3, a movable frame 6 slidably sleeved on the outside of the U-shaped seat 4, a cable saddle 9 provided on the upper surface of the movable frame 6, and a guide rod 7 having one end connected to the upper surface of the U-shaped seat 4 and the other end movably passing through the movable frame 6; the vertical section of the movable frame 6 is U-shaped; the cable saddle 9 belongs to the prior art and is used to arrange the steel cable body 10, which will not be described in detail here; the guide rod 7 is used to ensure the stability of the movable frame 6 in movement relative to the U-shaped seat 4;

[0037] There are multiple groups of guide rods 7. The movable frame 6 moves toward the U-shaped seat 4 along the guide rods 7 under the gravity of the basket arch. The outer wall of the guide rod 7 is provided with a spring 8 for assisting the movable frame 6 to return to its original position. Specifically, one end of the spring 8 is connected to the U-shaped seat 4, and the other end is connected to the movable frame 6. After the basket arch is lifted, the saddle 9 and the movable frame 6 move toward the U-shaped seat 4 under the influence of gravity.

[0038] Preferably, the outer support assembly of this embodiment includes a support frame 12, a transmission member 1 provided on the U-shaped seat 4, and a guide wheel member 13 provided at one end of the support frame 12 for contacting with the outer wall of the cable body 10; for example, the guide wheel member 13 includes a seat body and a wheel body, etc., for sliding contact with the outer wall of the cable body 10;

[0039] There are two sets of support frames 12, one on each side of the U-shaped seat 4. The other end of the support frame 12 is rotatably connected to the side wall of the U-shaped seat 4 through the mounting base and the rotating shaft 11. When the movable frame 16 moves downward, the transmission member 1 drives the rotating shaft 11 to drive the support frame 12 to flip.

[0040] Specifically, the transmission member 1 includes a driven gear 14 that is rotated on the upper side wall of the U-shaped seat 4 through an axis, a rotating shaft 2 16 that is rotatably arranged on the side wall of the mounting seat, a sprocket transmission group 15 for connecting the axis and the rotating shaft 2 16, and a gear group 17 for connecting the rotating shaft 2 16 and the rotating shaft 11; the side wall of the movable frame 16 is provided with a tooth segment that drives the driven gear 14 to rotate; wherein, the sprocket transmission group 15 includes a sprocket and a chain, etc., and the gear group includes two groups of meshing gears; the gear group is used to change the rotation direction of the rotating shaft 11, so that the support frame 12 flips to the side away from the mounting beam 1. The movable frame 16 drives the driven gear 14 downward through the tooth segment, the driven gear 14 drives the rotating shaft 2 16 through the sprocket transmission group 15, the rotating shaft 16 drives the rotating shaft 11 through the gear group 17, and the rotating shaft 11 drives the supporting frame 12 to flip. The flipping of the supporting frame 12 opens the two sections of the steel cable body 10 outward through the guide wheel part 13 to make it taut, thereby reducing the shaking of the basket arch during transportation.

[0041] Preferably, the limit assembly of this embodiment includes two sets of movable frames 18 slidably sleeved on the two side walls of the U-shaped seat 4, a contact plate 19 connecting the two sets of movable frames 18, and a spring 22 connecting the movable frames 18 and the U-shaped seat 4; the movable frames 18 are U-shaped and can move up and down relative to the U-shaped seat 4, the contact plates 19 are used to contact the basket arch, and the spring 22 is used to drive the upward-moving movable frames 18 and the contact plates 19 to return to their original positions downward;

[0042] Both ends of the contact plate 19 are provided with limit frames 20 which are rotated by the rotating shaft 3. The limit frames 20 have movable openings which do not affect the downward extension of the steel cable body 10. The movable frame 2 18 is provided with a transmission component 2 which is used to drive the rotating shaft 3 to drive the limit frames 20 to flip inward when the contact plate 19 moves upward. Specifically, the transmission component 2 includes a driven gear 2 provided on the outer wall of the rotating shaft 3 and a rack 21 provided on the bottom of the U-shaped seat 4 for driving the driven gear 2 to rotate. The operation of the external support assembly causes the steel cable body 10 to drive the object to be hoisted to contact the contact plate 19 and drive the contact plate 19 and the movable frame 2 18 upward. The upward movement of the contact plate 19 causes the limit frames 20 to flip and contact the basket arch through the cooperation of the driven gear 2 and the rack 21, providing a certain clamping force to the basket arch so that the basket arch is not prone to shaking.

[0043] Preferably, the limiting frame 20 of this embodiment is provided with an elastic block 23 for contacting the basket arch. For example, the elastic block 23 is made of rubber material to avoid damage to the basket arch while improving the limiting quality of the basket arch.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cable crane hoisting sling for hoisting a basket arch, comprising a mounting beam (1), wherein the upper end of the mounting beam (1) is provided with a lifting lug (2), and characterized in that: It also includes a moving block (3), a driving member (5), a driving frame assembly, a steel cable body (10), an external support assembly, and a limit assembly; The movable blocks (3) are provided in two groups, which are respectively slidably arranged at both ends of the upper surface of the mounting beam (1) and located inside the lifting lugs (2); The driving member (5) is used to drive the two groups of moving blocks (3) to move toward or away from each other along the length direction of the mounting beam (1); The driving frame assembly is arranged on the moving block (3); The steel cable body (10) is sleeved on the outer wall of the driving frame assembly, and the steel cable body (10) has two movable ends for connecting to the basket arch; The outer support assembly and the limit assembly are both arranged on the driving frame assembly; After the lifting device lifts the basket arch, the driving frame assembly drives the outer support assembly to push the steel cable body (10) to move outward, so that the steel cable body (10) drives the basket arch upward to pass through the limit assembly; The driving frame assembly includes a U-shaped seat (4) provided on the moving block (3), a movable frame (6) slidably sleeved on the outside of the U-shaped seat (4), a saddle (9) provided on the upper surface of the movable frame (6), and a guide rod (7) with one end connected to the upper surface of the U-shaped seat (4) and the other end movably passing through the movable frame (6), wherein the movable frame (6) moves toward the U-shaped seat (4) along the guide rod (7) under the gravity of the basket arch; The outer support assembly includes a support frame (12), a transmission member 1 provided on the U-shaped seat (4), and a guide wheel member (13) provided at one end of the support frame (12) for contacting with the outer wall of the steel cable body (10); the other end of the support frame (12) is rotatably connected to the side wall of the U-shaped seat (4); when the movable frame 1 (6) moves downward, the transmission member 1 drives the rotating shaft 1 (11) to drive the support frame (12) to flip; The limiting assembly comprises two groups of movable frames (18) respectively slidably sleeved on the two side walls of the U-shaped seat (4), a contact plate (19) connecting the two groups of movable frames (18), and a spring (22) connecting the movable frames (18) and the U-shaped seat (4); both ends of the contact plate (19) are provided with a limiting frame (20) through a rotating shaft (3), and a transmission member (2) is provided on the movable frame (18), and the transmission member (2) is used to drive the rotating shaft (3) to drive the limiting frame (20) to flip inward when the contact plate (19) moves upward.

2. A cable crane hoisting sling for hoisting a basket arch according to claim 1, characterized in that: The guide rods (7) are provided in multiple groups, and the outer wall of the guide rods (7) is provided with a spring (8) for assisting the movable frame (6) to return to its original position.

3. A cable crane hoisting sling for hoisting a basket arch according to claim 1, characterized in that: The support frame (12) is provided with two groups, which are respectively located on the two side walls of the U-shaped seat (4). The other end of the support frame (12) is rotatably connected to the side wall of the U-shaped seat (4) through the mounting seat and the rotating shaft (11).

4. A cable crane hoisting sling for hoisting a basket arch according to claim 1, characterized in that: The transmission member 1 includes a driven gear 1 (14) which is arranged above the side wall of the U-shaped seat (4) through a shaft, a rotating shaft 2 (16) which is arranged on the side wall of the mounting seat, a sprocket transmission group (15) for connecting the shaft and the rotating shaft 2 (16) through transmission, and a gear group (17) for connecting the rotating shaft 2 (16) and the rotating shaft 1 (11) through transmission; the side wall of the movable frame 1 (6) is provided with a tooth segment for driving the driven gear 1 (14) to rotate.

5. The cable crane hoisting sling for hoisting a basket arch according to claim 1, characterized in that: The transmission member 2 comprises a driven gear 2 arranged on the outer wall of the rotating shaft 3 and a rack (21) arranged on the bottom of the U-shaped seat (4) for driving the driven gear 2 to rotate.

6. A cable crane hoisting sling for hoisting a basket arch according to claim 1, characterized in that: The limiting frame (20) is provided with an elastic block (23) for contacting the basket arch.

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