Anti-sway device for crane hoisting equipment

Abstract

The present invention belongs to the technical field of cranes, and in particular to an anti-sway device for crane hoists. The following scheme is proposed, including a pallet and a base, the bottom of the pallet and the bottom of the base are in the same horizontal plane, the four corners of the bottom of the pallet are fixedly connected with legs, the tops of the four legs are fixedly connected with the same guardrail, the four corners of the top of the guardrail are fixedly connected with cables, the tops of the four cables are fixedly connected with the same connector, the top of the connector is fixedly connected with a connecting buckle, and the bottom of the connector is fixedly connected with a plug. In the present invention, the pallet is lifted off the ground by the initial lifting of the hydraulic rod, which is convenient for observing and adjusting the counterweight of the pallet before lifting, and the lifting can be continued directly after the adjustment is completed without resetting the hydraulic rod, thereby preventing the goods on the pallet from shifting during the resetting process and preventing the pallet from tilting again, thereby achieving the purpose of preventing the pallet from shifting during the lifting process.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to an anti-sway device for crane hoisting gear. Background Art

[0002] Crane spreaders are an important part of cranes and are used to lift and carry heavy objects. According to their uses and structures, crane spreaders can be divided into many types, including hooks, slings, beams, wire rope spreaders, chain spreaders, vacuum spreaders, electromagnetic spreaders, grabs, clamps and baskets, etc.

[0003] After searching, a Chinese patent application with application publication number CN218708568U discloses a precise anti-sway structure for a crane sling, including a trolley frame, a sling frame, four lifting pulleys and four anti-sway pulleys. Two main drums are provided at both ends of the trolley frame, two lifting ropes are wound around the main drums, and four anti-sway drums are provided in the middle of the trolley frame.

[0004] The above patent cannot help balance the sling loaded with cargo before lifting, which may easily cause the sling to be in a tilted state when lifting, thereby causing swaying and cargo sliding. It is urgent to design an anti-sway device for crane sling to solve the above problems. Summary of the invention

[0005] Based on the technical problem that the existing devices are not convenient for quickly adjusting the balance of the sling before lifting, the present invention proposes an anti-sway device for the crane sling.

[0006] The present invention provides an anti-sway device for a crane hoist, comprising a pallet and a base, the bottom of the pallet and the bottom of the base are in the same horizontal plane, the four corners of the bottom of the pallet are fixedly connected with supporting feet, the tops of the four supporting feet are fixedly connected with the same guardrail, the four corners of the top of the guardrail are fixedly connected with cables, the tops of the four cables are fixedly connected with the same connector, the top of the connector is fixedly connected with a connecting buckle, and the bottom of the connector is fixedly connected with a plug, a lifting rod is inserted into the interior of the plug, an end of the lifting rod away from the plug is rotatably connected to a rod sheath, a slot is provided at the top of the rod sheath, the lifting rod is inserted into the inside of the slot, a hydraulic rod is fixedly connected to the bottom of the rod sheath, the hydraulic rod is fixedly connected to the top of the base, a level ruler is fixedly connected to the outer wall of the pallet, a fixed counterweight is fixedly connected to one side of the inner wall at the top of the pallet, a first motor is fixedly connected to the middle position of the inner wall at the top of the pallet, the output end of the first motor is transmission-connected with a transmission rod, an end of the transmission rod away from the first motor is slidably connected to a sliding seat, and a movable counterweight is fixedly connected to the top of the sliding seat.

[0007] Preferably, a socket is provided in the middle of the plug, and one end of the lifting rod is located inside the socket.

[0008] Preferably, a clamp is fixedly connected to the top of the hydraulic rod, a bracket is fixedly connected to the outer wall of one side of the clamp, and the top end of the bracket is fixedly connected to the rod sheath.

[0009] Preferably, one side of the guardrail is arranged to be an opening, and a protective door is hinged at the opening of the guardrail.

[0010] Preferably, a movable sleeve is fixedly connected to the middle of one side of the protective door, a fixed sleeve is fixedly connected to the middle of the side of the guardrail close to the movable sleeve, and the same latch is inserted into the interior of the fixed sleeve and the movable sleeve.

[0011] Preferably, a universal wheel is rotatably connected to the middle position of the top of the movable counterweight, and the top of the universal wheel contacts the inner wall of the top of the tray.

[0012] Preferably, a first sliding groove is opened in the middle part of the tray close to the movable counterweight, and a support column is slidably connected inside the first sliding groove, and one end of the support column located inside the tray is fixedly connected to the first sliding block, and one end of the support column located outside the tray is fixedly connected to a threaded column, and the outer wall of the threaded column is threadedly connected to a threaded sleeve, and the outer wall of the threaded sleeve is fixedly connected to two symmetrically arranged turning handles, and one side of the threaded sleeve is in contact with the outer wall of the pallet.

[0013] Preferably, a second slide groove is provided at the bottom of the movable counterweight on one side close to the first slide block, a second slide block is slidably connected inside the second slide groove, and the second slide block is fixedly connected to one side of the first slide block.

[0014] Preferably, a transmission tooth is provided on one side of the transmission rod, the outer wall of the bottom of the sliding seat is fixedly connected to a motor frame, one side of the motor frame is fixedly connected to a second motor, and the output end of the second motor is transmission-connected to a gear meshing with the transmission tooth.

[0015] Preferably, a top groove is opened on the top of the pallet, and rubber columns are fixedly connected to the four corners of the inner wall of the bottom of the top groove, and the tops of the four rubber columns are fixedly connected to the same top plate, and an anti-collision pad is fixedly connected to the edge of the top of the pallet, the height of the bottom of the top plate is higher than the height of the top of the pallet, and the anti-collision pad is located between the pallet and the top plate.

[0016] Compared with the prior art, the present invention provides a crane sling anti-sway device, which has the following beneficial effects:

[0017] 1. A crane hoist anti-sway device, by arranging a hydraulic rod, a rod sheath, a lifting rod, a connector and a plug, the hydraulic rod pushes the rod sheath upward, the lifting rod is limited by the inner wall at the bottom of the rod sheath and cannot rotate downward, so the lifting rod and the rod sheath move upward synchronously, and the pallet is lifted upward by the plug, the connector, the cable and the guardrail. At this time, the staff judges the inclination of the pallet by the level ruler, adjusts the position of the sliding seat, and drives the transmission rod to rotate by the first motor to change the position of the moving counterweight until the level ruler shows that the pallet reaches a balanced state, and then connects the connecting buckle to the lifting device, and lifts the pallet and the cargo upward by the connecting buckle. The top of the rod sheath cannot limit the lifting rod, so the plug drives the lifting rod to deflect during the rising process until the lifting rod automatically disengages from the plug, and the pallet is lifted off the ground by the initial lifting of the hydraulic rod, which is convenient for observing and adjusting the counterweight of the pallet before lifting, and can continue to lift directly after the adjustment is completed, without resetting the hydraulic rod, to prevent the cargo on the pallet from shifting during the resetting process, to prevent the pallet from tilting again, and to achieve the purpose of preventing the pallet from shifting during the lifting process.

[0018] 2. This anti-sway device for crane hoist is arranged so that the second motor drives the gear to rotate, and the meshing of the gear and the transmission tooth drives the sliding seat to slide along the transmission rod, thereby realizing the adjustment of the distance between the moving counterweight and the first motor. The threaded sleeve is rotated by the turning handle to make the threaded sleeve leave the outer wall of the pallet. At this time, the support column can slide along the inside of the first slide groove, thereby driving the first slider and the second slider to slide along the second slide groove. When the second slider completely leaves the second slide groove, the position of the moving counterweight can be adjusted. When the pallet is idle, the moving counterweight is adjusted to the second position, and then the second slider is inserted into the second slide groove. The threaded sleeve is adjusted to press the outer wall of the pallet, and the moving counterweight can be locked again.

[0019] 3. This kind of crane hoist anti-sway device is provided with a top groove, a top plate, a rubber column and an anti-collision pad. When the goods are stacked on the top of the top plate, the rubber column can be deformed, and the top groove can accommodate the inclination and displacement of the top plate within a certain range, so as to buffer the process of the goods contacting the top plate and prevent the goods from being damaged due to collision during the stacking process. The anti-collision pad buffers between the top plate and the pallet and prevents the top plate from directly colliding with the top edge of the pallet due to excessive instantaneous deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a crane hoisting device anti-sway device proposed by the present invention;

[0021] Figure 2 A schematic diagram of the structure of a crane hoisting device anti-sway device proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the crane hoisting device anti-sway device at position B proposed by the present invention;

[0023] Figure 4 A schematic diagram of the bottom structure of a crane hoist anti-sway device proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the first motor and movable counterweight structure of a crane hoist anti-sway device proposed by the present invention;

[0025] Figure 6 A schematic diagram of the lifting rod and rod sheath structure of a crane hoist anti-sway device proposed by the present invention;

[0026] Figure 7 A schematic diagram of the assembly of a tray and a top plate of an anti-sway device for a crane spreader proposed by the present invention;

[0027] Figure 8 This is a front structural schematic diagram of a crane hoisting device anti-sway device proposed by the present invention.

[0028] In the figure: 1. tray; 2. support foot; 3. guardrail; 4. protective door; 5. hydraulic rod; 6. bracket; 7. rod sheath; 8. lifting rod; 9. cable; 10. connector; 11. connecting buckle; 12. plug; 13. level; 14. movable sleeve; 15. fixed sleeve; 16. latch; 17. first slide; 18. threaded sleeve; 19. threaded column; 20. handle; 21. first motor; 22. transmission rod; 23. movable counterweight; 24. base; 25. fixed counterweight; 26. sliding seat; 27. motor frame; 28. second motor; 29. ​​second slide; 30. first slider; 31. second slider; 32. support column; 33. universal wheel; 34. clamp; 35. slot; 36. socket; 37. top slot; 38. top plate; 39. rubber column; 40. anti-collision pad. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-8A crane hoist anti-sway device comprises a tray 1 and a base 24, the bottom of the tray 1 and the bottom of the base 24 are in the same horizontal plane, the four corners of the bottom of the tray 1 are fixedly connected with supporting feet 2, the tops of the four supporting feet 2 are fixedly connected with the same guardrail 3, the four corners of the top of the guardrail 3 are fixedly connected with cables 9, the tops of the four cables 9 are fixedly connected with the same connector 10, the top of the connector 10 is fixedly connected with a connecting buckle 11, and the bottom of the connector 10 is fixedly connected with a plug 12, the inside of the plug 12 is plugged with a lifting rod 8, and the end of the lifting rod 8 away from the plug 12 is rotatably connected with a rod The sheath 7 has a slot 35 at the top, and the lifting rod 8 is inserted into the slot 35. The bottom of the sheath 7 is fixedly connected to the hydraulic rod 5, and the hydraulic rod 5 is fixedly connected to the top of the base 24. The outer wall of the tray 1 is fixedly connected to the level ruler 13, and one side of the inner wall of the top of the tray 1 is fixedly connected to the fixed counterweight 25. The middle position of the inner wall of the top of the tray 1 is fixedly connected to the first motor 21. The output end of the first motor 21 is transmission-connected to the transmission rod 22, and the end of the transmission rod 22 away from the first motor 21 is slidably connected to the sliding seat 26, and the top of the sliding seat 26 is fixedly connected to the movable counterweight 23.

[0031] In the present invention, a plug hole 36 is provided in the middle of the plug 12 , and one end of the lifting rod 8 is located inside the plug hole 36 .

[0032] In the present invention, a clamp 34 is fixedly connected to the top of the hydraulic rod 5, a bracket 6 is fixedly connected to the outer wall on one side of the clamp 34, the top of the bracket 6 is fixedly connected to the rod sheath 7, and the bracket 6 plays a supporting role between the hydraulic rod 5 and the rod sheath 7, thereby enhancing the stability of the rod sheath 7 and the lifting rod 8.

[0033] In the present invention, one side of the guardrail 3 is set as an opening, and a protective door 4 is hinged at the opening of the guardrail 3. The guardrail 3 and the protective door 4 play a protective role around the pallet 1 to prevent the goods from falling off during lifting.

[0034] In the present invention, a movable sleeve 14 is fixedly connected to the middle part of one side of the protective door 4, and a fixed sleeve 15 is fixedly connected to the middle part of the side of the guardrail 3 close to the movable sleeve 14. The fixed sleeve 15 and the movable sleeve 14 are plugged with the same latch 16. The fixed sleeve 15 and the movable sleeve 14 are connected by the latch 16, and then the protective door 4 is locked on the guardrail 3.

[0035] In the present invention, a universal wheel 33 is rotatably connected to the middle position of the top of the movable counterweight 23 , and the top of the universal wheel 33 contacts the inner wall of the top of the tray 1 , and the universal wheel 33 is used to support between the top inner wall of the tray 1 and the movable counterweight 23 .

[0036] In the present invention, a first slide groove 17 is opened in the middle of the side of the pallet 1 close to the movable counterweight 23, and a support column 32 is slidably connected inside the first slide groove 17. The end of the support column 32 located inside the pallet 1 is fixedly connected to the first slider 30, and the end of the support column 32 located outside the pallet 1 is fixedly connected to a threaded column 19. The outer wall of the threaded column 19 is threadedly connected to a threaded sleeve 18. The outer wall of the threaded sleeve 18 is fixedly connected to two symmetrically arranged turning handles 20, and one side of the threaded sleeve 18 is attached to the outer wall of the pallet 1.

[0037] In the present invention, a second slide groove 29 is provided at the bottom of the movable counterweight 23 near the first slider 30, and a second slider 31 is slidably connected inside the second slide groove 29. The second slider 31 is fixedly connected to one side of the first slider 30. The threaded sleeve 18 is rotated by the turning handle 20 to make the threaded sleeve 18 leave the outer wall of the pallet 1. At this time, the support column 32 can slide along the inside of the first slide groove 17, thereby driving the first slider 30 and the second slider 31 to slide along the second slide groove 29. When the second slider 31 completely leaves the second slide groove 29, the position of the movable counterweight 23 can be adjusted. When the pallet 1 is idle, the movable counterweight 23 is adjusted to reset, and then the second slider 31 is inserted into the second slide groove 29. The threaded sleeve 18 is adjusted to press the outer wall of the pallet 1, and the movable counterweight 23 can be locked again.

[0038] In the present invention, a transmission tooth is provided on one side of the transmission rod 22, a motor frame 27 is fixedly connected to the outer wall at the bottom of the sliding seat 26, a second motor 28 is fixedly connected to one side of the motor frame 27, and an output end of the second motor 28 is transmission-connected to a gear meshed with the transmission tooth. The second motor 28 drives the gear to rotate, and the sliding seat 26 is driven to slide along the transmission rod 22 through the meshing of the gear and the transmission tooth, thereby realizing the adjustment of the distance between the moving counterweight 23 and the first motor 21.

[0039] In the present invention, a top groove 37 is opened on the top of the pallet 1, and rubber columns 39 are fixedly connected to the four corners of the inner wall at the bottom of the top groove 37, and the tops of the four rubber columns 39 are fixedly connected to the same top plate 38. An anti-collision pad 40 is fixedly connected to the edge of the top of the pallet 1, and the height of the bottom of the top plate 38 is higher than the height of the top of the pallet 1. The anti-collision pad 40 is located between the pallet 1 and the top plate 38. When the goods are stacked on the top of the top plate 38, the rubber columns 39 can be deformed, and the top groove 37 can accommodate the inclination and offset of the top plate 38 within a certain range, which plays a buffering role in the process of the goods contacting the top plate 38, thereby preventing the goods from being damaged due to collision during the stacking process. The anti-collision pad 40 performs buffering between the top plate 38 and the pallet 1, thereby preventing the top plate 38 from directly colliding with the top edge of the pallet 1 due to excessive instantaneous deformation.

[0040] When in use, the fixed counterweight 25 and the movable counterweight 23 are respectively located on both sides of the bottom of the pallet 1 to ensure that the pallet 1 can maintain balance in an empty state. When the goods are loaded onto the top of the pallet 1, the hydraulic rod 5 pushes the rod sheath 7 upward, and the lifting rod 8 is limited by the inner wall at the bottom of the rod sheath 7 and cannot rotate downward. Therefore, the lifting rod 8 moves upward synchronously with the rod sheath 7, and the pallet 1 is lifted upward by the plug 12, the connector 10, the cable 9 and the guardrail 3. At this time, the staff judges the inclination of the pallet 1 through the level ruler 13, adjusts the position of the sliding seat 26, and drives the transmission rod 22 to rotate through the first motor 21, changes the position of the movable counterweight 23, until the level ruler 1 3 shows that the pallet 1 reaches a balanced state, after which the connecting buckle 11 is connected to the lifting device, and the pallet 1 and the goods are lifted upward by the connecting buckle 11. The top of the rod sheath 7 cannot limit the lifting rod 8, so the plug 12 drives the lifting rod 8 to deflect during the rising process until the lifting rod 8 automatically disengages from the plug 12. The pallet 1 is lifted off the ground by the initial lifting of the hydraulic rod 5, which is convenient for observing and adjusting the counterweight of the pallet 1 before lifting, and the lifting can be continued directly after the adjustment is completed without resetting the hydraulic rod 5, so as to prevent the goods on the pallet 1 from shifting during the resetting process and prevent the pallet 1 from tilting again, thereby achieving the purpose of preventing the pallet 1 from shifting during the lifting process.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crane sling anti-sway device, comprising a tray (1) and a base (24), wherein the bottom of the tray (1) and the bottom of the base (24) are in the same horizontal plane, and characterized in that: The four corners of the bottom of the tray (1) are fixedly connected to supporting feet (2), the tops of the four supporting feet (2) are fixedly connected to a guardrail (3), the four corners of the top of the guardrail (3) are fixedly connected to cables (9), the tops of the four cables (9) are fixedly connected to a connecting piece (10), the top of the connecting piece (10) is fixedly connected to a connecting buckle (11), and the bottom of the connecting piece (10) is fixedly connected to a plug (12), a lifting rod (8) is inserted into the plug (12), and the end of the lifting rod (8) away from the plug (12) is rotatably connected to a rod sheath (7), a slot (35) is provided on the top of the rod sheath (7), and the lifting rod (8) is fixedly connected to the plug (12). ) is inserted into the interior of the card slot (35), the bottom of the rod sheath (7) is fixedly connected to a hydraulic rod (5), the hydraulic rod (5) is fixedly connected to the top of the base (24), the outer wall of the tray (1) is fixedly connected to a level ruler (13), one side of the inner wall of the top of the tray (1) is fixedly connected to a fixed counterweight (25), the middle position of the inner wall of the top of the tray (1) is fixedly connected to a first motor (21), the output end of the first motor (21) is transmission-connected to a transmission rod (22), the end of the transmission rod (22) away from the first motor (21) is slidably connected to a sliding seat (26), and the top of the sliding seat (26) is fixedly connected to a movable counterweight (23).

2. The anti-sway device for crane spreader according to claim 1, characterized in that: A plug hole (36) is provided in the middle of the plug (12), and one end of the lifting rod (8) is located inside the plug hole (36).

3. The anti-sway device for crane spreader according to claim 1, characterized in that: The top of the hydraulic rod (5) is fixedly connected to a clamp (34), the outer wall of one side of the clamp (34) is fixedly connected to a bracket (6), and the top of the bracket (6) is fixedly connected to the rod sheath (7).

4. The anti-sway device for crane spreader according to claim 1, characterized in that: One side of the guardrail (3) is arranged to be an opening, and a protective door (4) is hingedly connected to the opening of the guardrail (3).

5. The anti-sway device for crane hoisting equipment according to claim 4, characterized in that: A movable sleeve (14) is fixedly connected to the middle of one side of the protective door (4), a fixed sleeve (15) is fixedly connected to the middle of the side of the guardrail (3) close to the movable sleeve (14), and the fixed sleeve (15) and the movable sleeve (14) are internally plugged with the same latch (16).

6. The anti-sway device for crane spreader according to claim 1, characterized in that: A universal wheel (33) is rotatably connected to the middle position of the top of the movable counterweight (23), and the top of the universal wheel (33) contacts the inner wall of the top of the tray (1).

7. The anti-sway device for crane spreader according to claim 1, characterized in that: A first slide groove (17) is provided in the middle of a side of the pallet (1) close to the movable counterweight (23); a support column (32) is slidably connected inside the first slide groove (17); one end of the support column (32) located inside the pallet (1) is fixedly connected to a first sliding block (30); one end of the support column (32) located outside the pallet (1) is fixedly connected to a threaded column (19); an outer wall of the threaded column (19) is threadedly connected to a threaded sleeve (18); an outer wall of the threaded sleeve (18) is fixedly connected to two symmetrically arranged rotating handles (20); one side of the threaded sleeve (18) is in contact with the outer wall of the pallet (1).

8. The anti-sway device for crane spreader according to claim 7, characterized in that: A second slide groove (29) is provided at the bottom of the movable counterweight (23) on one side close to the first slide block (30), a second slide block (31) is slidably connected inside the second slide groove (29), and the second slide block (31) is fixedly connected to one side of the first slide block (30).

9. The anti-sway device for crane hoisting equipment according to claim 1, characterized in that: A transmission tooth is provided on one side of the transmission rod (22); a motor frame (27) is fixedly connected to the outer wall of the bottom of the sliding seat (26); a second motor (28) is fixedly connected to one side of the motor frame (27); and a gear meshing with the transmission tooth is transmission-connected to the output end of the second motor (28).

10. The anti-sway device for crane spreader according to claim 1, characterized in that: The top of the tray (1) is provided with a top groove (37), the four corners of the bottom inner wall of the top groove (37) are fixedly connected to rubber columns (39), the tops of the four rubber columns (39) are fixedly connected to the same top plate (38), the edge of the top of the tray (1) is fixedly connected to an anti-collision pad (40), the height of the bottom of the top plate (38) is higher than the height of the top of the tray (1), and the anti-collision pad (40) is located between the tray (1) and the top plate (38).

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