Automatic hooking and unhooking lifting appliance based on double-sliding-block movement mechanism

Abstract

The utility model discloses an automatic hooking and unhooking lifting appliance based on a double-slider movement mechanism, which comprises a grasping part and a lifting hook part, the lifting hook part is fixedly arranged above the grasping part, the grasping part is used for clamping and fixing an article to be transported, and the lifting hook part is connected with a crane lifting hook; the lifting hook part comprises a first lifting arm assembly, a second lifting arm assembly and a linkage assembly, the first lifting arm assembly and the second lifting arm assembly are symmetrically arranged on the grabbing part, and the first lifting arm assembly and the second lifting arm assembly are in transmission connection through the linkage assembly; the first suspension arm assembly and the second suspension arm assembly are both provided with hooking rods, and the two hooking rods are folded inwards to achieve simultaneous hooking by pressing the linkage assembly through the traveling crane hook; the suspension arms on the two sides can be automatically hung on the crane hook at the same time, the suspension arms can be automatically separated from the crane hook after the lifting appliance is used, safety and reliability are achieved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sling equipment, in particular to an automatic hooking and unhooking sling based on a double-slider motion mechanism. Background Art

[0002] Hoisting equipment is widely used in metallurgical enterprises. Roller hoisting equipment is a kind of large-scale special hoisting equipment. The use of large-scale hoisting equipment generally relies on manual control of the crane to insert the hook into the boom on one side of the hoisting equipment and then hang the boom on the other side. This is time-consuming and labor-intensive. Sometimes it cannot be successful in one time and needs to be repeated many times. During the process, there are serious collisions and unsafe factors.

[0003] In view of the above-mentioned defects, the inventor of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content

[0004] In order to solve the above-mentioned technical defects, the technical solution adopted by the utility model is to provide an automatic hooking and unhooking sling based on a double slider motion mechanism, including a gripping part and a hook part, the hook part is fixedly arranged above the gripping part, the gripping part is used to clamp and fix the items to be transported, and the hook part is connected to the crane hook; the hook part includes a first boom assembly, a second boom assembly and a linkage assembly, the first boom assembly and the second boom assembly are symmetrically arranged on the gripping part, and the first boom assembly and the second boom assembly are transmission-connected through the linkage assembly; the first boom assembly and the second boom assembly are both provided with a hook rod, and the linkage assembly is pressed by the crane hook to make the two hook rods close inward to achieve simultaneous hooking.

[0005] Preferably, the gripping portion is provided with four supporting legs at the bottom, each supporting leg is provided with a pushing claw, each supporting leg is provided with a folding groove, and one end of the pushing claw is rotatably connected in the folding groove via a rotating shaft.

[0006] Preferably, the first boom assembly and the second boom assembly each include a connecting rod, a rotating shaft, a connecting base and a linkage rod, the rotating shaft and the hook rod are respectively provided at both ends of the connecting rod, the connecting base is fixedly provided on the gripping portion, the rotating shaft is provided on the connecting base, and the rotating shaft can rotate freely around its own axis; the linkage rod is fixedly provided on the connecting rod, and one end of the linkage rod is connected to the linkage assembly.

[0007] Preferably, the first boom assembly and the second boom assembly are both provided with two connecting rods in parallel and correspondingly, one end of the two corresponding connecting rods is connected by the hook rod, and the other end is connected by the rotating shaft, and the two connecting rods are symmetrically arranged on both sides of the connecting base.

[0008] Preferably, the first boom assembly and the second boom assembly are further provided with a limiting plate, the limiting plate is fixedly arranged on the connecting rod, the limiting plate is correspondingly arranged above the connecting base, a limiting block protrudes from the upper surface of the connecting base, and the limiting block and the limiting plate are correspondingly arranged.

[0009] Preferably, the linkage assembly includes a linkage seat, a pressing block and an adjusting rod. The linkage seat includes two parallel adjusting plates and a connecting plate. The two adjusting plates are fixedly arranged at both ends of the connecting plate to form a U-shaped frame structure. The connecting plate is fixedly arranged on the grasping part. The pressing block is arranged between the two adjusting plates, and a pressing hole is arranged on the pressing block. Adjusting grooves extending in the vertical direction are arranged on the adjusting plates. The adjusting rod is simultaneously arranged in the two adjusting grooves and the pressing hole. A connecting hole is arranged on the linkage rod, the connecting hole is arranged as an oblong hole, and the adjusting rod is simultaneously arranged in the connecting holes of the first boom assembly and the second boom assembly.

[0010] Preferably, the middle part of the linkage rod is fixedly connected to the middle part of the corresponding connecting rod. The linkage rod and the connecting rod form a cross-connecting structure. A counterweight block and the connecting hole are respectively arranged at both ends of the linkage rod. The limiting block is arranged on the side of the corresponding connecting base away from the linkage seat.

[0011] Preferably, the two linkage rods on the first boom assembly are arranged on both sides of the two connecting rods, and the two linkage rods on the second boom assembly are arranged between the two connecting rods.

[0012] Preferably, the cross-section of the adjusting rod is arranged as a quadrilateral structure with two arc-shaped sides and two straight sides. The two straight sides of the cross-section of the adjusting rod are arranged in parallel. The cross-section shape of the pressing hole on the pressing block is the same as the cross-section shape of the adjusting rod. The width of the adjusting groove is correspondingly arranged with the distance between the two straight sides of the cross-section of the adjusting rod.

[0013] Compared with the prior art, the beneficial effect of the present invention is that the present invention can automatically hang the two booms on the overhead crane hook at the same time, and can automatically disconnect the boom from the overhead crane hook after the lifting appliance is used, which is safe and reliable and greatly improves the working efficiency. Description of the Drawings

[0014] Figure 1 is the three-dimensional structural view of the automatic hook-on and hook-off lifting appliance based on the double-slider motion mechanism;

[0015] Figure 2 is the structural view of the pressing block;

[0016] Figure 3It is a schematic diagram of the initial state structure of the automatic hooking and unhooking sling based on the double-slider motion mechanism;

[0017] Figure 4 It is a schematic diagram of the hooking state structure of the automatic hooking and unhooking sling based on the double-slider motion mechanism;

[0018] Figure 5 It is a schematic diagram of the unhooking state structure of the automatic hooking and unhooking sling based on the double-slider motion mechanism.

[0019] The numbers in the figure represent:

[0020] 1-gripping part; 2-first boom assembly; 3-second boom assembly; 4-linkage assembly; 5-crane hook; 11-support foot; 12-push claw; 21-hook rod; 22-connecting rod; 23-rotating shaft; 24-connecting base; 25-linkage rod; 26-limiting plate; 27-limiting block; 28-connecting hole; 41-linkage seat; 42-pressing block; 43-adjusting rod; 44-pressing hole; 45-adjusting slot. DETAILED DESCRIPTION

[0021] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0022] Embodiment 1

[0023] like Figure 1 As shown, Figure 1 It is a three-dimensional structural view of the automatic hooking and unhooking spreader based on the double-slider motion mechanism.

[0024] The automatic hooking and unhooking sling based on the double-slider motion mechanism of the utility model includes a gripping part 1 and a hook part, wherein the hook part is fixedly arranged above the gripping part 1, the gripping part 1 is used to clamp and fix the items to be transported, and the hook part is connected to the traveling hook 5; the hook part includes a first boom assembly 2, a second boom assembly 3 and a linkage assembly 4, the first boom assembly 2 and the second boom assembly 3 are symmetrically arranged on the gripping part 1, and the first boom assembly 2 and the second boom assembly 3 are transmission-connected through the linkage assembly 4; the first boom assembly 2 and the second boom assembly 3 are both provided with a hooking rod 21, and the linkage assembly 4 is pressed by the traveling hook 5 to realize the inward closure of the two hooking rods 21, thereby realizing the simultaneous hooking operation of the traveling hook 5 on the two hooking rods 21.

[0025] Four feet 11 are arranged at the lower part of the gripping part 1. Pawls 12 are arranged on each of the feet 11. Folding grooves are arranged on the feet 11. One end of each pawl 12 is rotatably connected in the folding groove through a rotating shaft. When the pawl 12 rotates out of the folding groove around the rotating shaft, the pawl 12 is engaged with the clamping groove of the roll bearing seat. When lifting, the four pawls 12 lift the bearing seat together with the roll.

[0026] Specifically, both the first lifting arm assembly 2 and the second lifting arm assembly 3 include a connecting rod 22, a rotating shaft 23, a connecting base 24 and a linkage rod 25. The rotating shaft 23 and the hanging rod 21 are respectively arranged at both ends of the connecting rod 22. The connecting base 24 is fixedly arranged on the gripping part 1. The rotating shaft 23 is arranged on the connecting base 24 and can freely rotate around its own axis. The linkage rod 25 is fixedly arranged on the connecting rod 22. One end of the linkage rod 25 is connected with the linkage assembly 4. By pulling the linkage rod 25 through the linkage assembly 4, the first lifting arm assembly 2 and the second lifting arm assembly 3 can be freely rotated around the corresponding rotating shaft 23, so that the two hanging rods 21 are closed inward.

[0027] Preferably, at least two connecting rods 22 are arranged in parallel and correspondingly for both the first lifting arm assembly 2 and the second lifting arm assembly 3. Two correspondingly arranged connecting rods 22 are connected at one end through the hanging rod 21 and at the other end through the rotating shaft 23. The two connecting rods 22 are symmetrically arranged on both sides of the connecting base 24.

[0028] The first lifting arm assembly 2 and the second lifting arm assembly 3 are also provided with a limiting plate 26. The limiting plate 26 is fixedly arranged on the connecting rod 22. The limiting plate 26 is correspondingly arranged above the connecting base 24. A limiting block 27 protrudes from the upper surface of the connecting base 24. When the connecting rod 22 is opened outward to a certain angle, the limiting plate 26 and the limiting block 27 are clamped to limit the rotation angle of the connecting rod 22, so as to ensure the stable state of the first lifting arm assembly 2 and the second lifting arm assembly 3 in the open state.

[0029] The utility model can automatically hang the two lifting arms on the overhead crane hook 5 at the same time. After the lifting tool is used, the lifting arms can be automatically disengaged from the overhead crane hook 5, which is safe and reliable and greatly improves the working efficiency.

[0030] Embodiment Two

[0031] The linkage assembly 4 includes a linkage base 41, a pressing block 42, and an adjusting rod 43. The linkage base 41 includes two parallel adjusting plates and a connecting plate. The two adjusting plates are fixedly arranged at both ends of the connecting plate to form a U-shaped frame structure. The connecting plate is fixedly arranged on the grasping part 1. The pressing block 42 is arranged between the two adjusting plates, and a pressing hole 44 is arranged on the pressing block 42. Adjusting grooves 45 extending in the vertical direction are arranged on the adjusting plates. The adjusting rod 43 is arranged in both the adjusting grooves 45 and the pressing hole 44 at the same time. A connecting hole 28 is arranged on the linkage rod 25. The connecting hole 28 is arranged as an oblong hole. The adjusting rod 43 is arranged in the connecting holes 28 of the first boom assembly 2 and the second boom assembly 3 at the same time.

[0032] Through the structural arrangement of the linkage assembly 4, when the pressing block 42 is pressed and moves vertically downward, the adjusting rod 43 moves vertically in the adjusting groove 45, so as to perform a pressing operation on the end of the linkage rod 25, and make the linkage rod 25 rotate around the rotating shaft 23, so that the two hanging rods 21 close inward.

[0033] Preferably, the middle parts of the two linkage rods 25 on the first boom assembly 2 are fixedly connected to the middle parts of the corresponding connecting rods 22. The linkage rods 25 and the connecting rods 22 form a cross-connection structure. The included angle between the linkage rod 25 and the corresponding connecting rod 22 is 70°-90°. Counterweight blocks and the connecting holes 28 are respectively arranged at both ends of the linkage rod 25. The limiting block 27 is arranged on the side of the corresponding connecting base 24 away from the linkage base 41. Thus, when the first boom assembly 2 and the second boom assembly 3 are in the open state, under the action of the gravity of the counterweight block on the connecting rod 22, the connecting rod 22 is in an outward-expanded state, and under the abutting and clamping action between the limiting block 27 and the limiting plate 26, the outward-expanded state of the connecting rod 22 is stabilized.

[0034] Generally, the two linkage rods 25 on the first boom assembly 2 are arranged on both sides of the two connecting rods 22. The two linkage rods 25 on the second boom assembly 3 are arranged between the two connecting rods 22. Thus, when the linkage rods 25 on the first boom assembly 2 and the second boom assembly 3 are connected to the adjusting rod 43, a dislocation is formed, which is convenient for connecting to the end of the adjusting rod 43 at the same time.

[0035] As Figure 2 shown, Figure 2It is a structural view of the pressing block; the cross-section of the adjusting rod 43 is set as a quadrilateral structure with two arc sides and two straight sides, the two straight sides of the cross-section of the adjusting rod 43 are arranged in parallel, the cross-section shape of the pressing hole 44 on the pressing block 42 is the same as the cross-section shape of the adjusting rod 43, and the groove width of the adjusting groove 45 is correspondingly set with the distance between the two straight sides of the cross-section of the adjusting rod 43. The planes corresponding to the two straight sides on the adjusting rod 43 can ensure that the adjusting rod 43 moves vertically along the adjusting groove 45 without rotation, and at the same time, the pressing block 42 will not rotate relative to the adjusting rod 43. When the arc surfaces corresponding to the two arc sides on the adjusting rod 43 move linearly in the connecting hole 28, it is convenient for the linkage rod 25 to rotate around the rotating shaft 23.

[0036] Embodiment III

[0037] As Figures 3 to 5 shown Figure 3 It is a schematic structural diagram of the initial state of the automatic hook unhooking sling based on the double-slider motion mechanism; Figure 4 It is a schematic structural diagram of the hook state of the automatic hook unhooking sling based on the double-slider motion mechanism; Figure 5 It is a schematic structural diagram of the unhooking state of the automatic hook unhooking sling based on the double-slider motion mechanism.

[0038] The using method of the automatic hook unhooking sling based on the double-slider motion mechanism of the present utility model includes:

[0039] When the overhead crane hook 5 simultaneously hooks the two hanging rods 21, the overhead crane hook 5 presses the pressing block 42 vertically downward, and the adjusting rod 43 moves vertically downward along the adjusting groove 45, thereby driving the connecting rod 22 and the linkage rod 25 of the first boom assembly 2 and the second boom assembly 3 to rotate around the corresponding rotating shafts 23 at the same time, so that the hanging rods 21 on the first boom assembly 2 and the second boom assembly 3 close inward until they contact the vertical surfaces on both sides of the overhead crane hook 5. By lifting the overhead crane hook 5 again, the two hanging rods 21 are respectively hooked on the hooks on both sides of the overhead crane hook 5 to complete automatic hooking.

[0040] When the traveling hook 5 is unhooked, after the traveling hook 5 descends until the two hanging rods 21 are respectively disengaged from the hooks on both sides of the traveling hook 5, the traveling hook 5 moves horizontally towards the first boom assembly 2. The traveling hook 5 pushes the hanging rods 21 of the first boom assembly 2 to cause the hanging rods 21 to open outwards around the corresponding rotating shafts 23. During the process of the first boom assembly 2 expanding outwards, the adjusting rod 43 is driven to move upwards, so that the second boom assembly 3 expands outwards simultaneously. After the limiting plate 26 contacts the corresponding limiting block 27, the expanded states of the first boom assembly 2 and the second boom assembly 3 are stable, and automatic unhooking is completed.

[0041] Generally, when the connecting rod 22 rotates to the vertical state, under the counterweight action of the linkage rod 25, the boom automatically tilts outwards, and the limiting plate 26 and the corresponding limiting block 27 will stop it at a certain position to form a stable expanded state.

[0042] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. An automatic hook-on and hook-off sling based on a double-slider motion mechanism, characterized in that, It includes a gripping portion and a hook portion, wherein the hook portion is fixedly arranged above the gripping portion, the gripping portion is used to clamp and fix the items to be transported, and the hook portion is connected to the crane hook; the hook portion includes a first boom assembly, a second boom assembly and a linkage assembly, the first boom assembly and the second boom assembly are symmetrically arranged on the gripping portion, and the first boom assembly and the second boom assembly are transmission-connected via the linkage assembly; the first boom assembly and the second boom assembly are both provided with hook rods, and the linkage assembly is pressed by the crane hook to make the two hook rods close inwards to achieve simultaneous hooking.

2. The automatic hook-on and hook-off sling based on the double-slider motion mechanism according to claim 1, wherein The gripping part is provided with four supporting feet at the lower part, each of which is provided with a pusher claw, and each of which is provided with a folding groove, and one end of the pusher claw is rotatably connected in the folding groove through a rotating shaft.

3. The automatic hook-on and hook-off sling based on the double-slider motion mechanism according to claim 2, characterized in that, The first boom assembly and the second boom assembly both include a connecting rod, a rotating shaft, a connecting base and a linkage rod. The rotating shaft and the hook rod are respectively provided at both ends of the connecting rod. The connecting base is fixedly arranged on the gripping portion, and the rotating shaft is arranged on the connecting base, and the rotating shaft can rotate freely around its own axis; the linkage rod is fixedly arranged on the connecting rod, and one end of the linkage rod is connected to the linkage assembly.

4. The automatic hook-on and hook-off sling based on the double-slider motion mechanism according to claim 3, wherein, The first boom assembly and the second boom assembly are both provided with two connecting rods in parallel and correspondingly, one end of the two corresponding connecting rods is connected by the hook rod, and the other end is connected by the rotating shaft, and the two connecting rods are symmetrically arranged on both sides of the connecting base.

5. The automatic hook-on and hook-off sling based on the double-slider motion mechanism according to claim 4, characterized in that The first boom assembly and the second boom assembly are also provided with a limit plate, which is fixed on the connecting rod and correspondingly arranged above the connecting base. The upper surface of the connecting base protrudes to form a limit block, and the limit block and the limit plate are correspondingly arranged.

6. The automatic hook-engaging and disengaging sling based on the double-slider motion mechanism according to claim 5, wherein, The linkage assembly includes a linkage seat, a pressing block and an adjusting rod. The linkage seat includes two parallel adjustment plates and a connecting plate. The two adjustment plates are fixedly arranged at both ends of the connecting plate to form a U-shaped frame structure. The connecting plate is fixedly arranged on the grasping portion. The pressing block is arranged in the two adjustment plates, and a pressing hole is arranged on the pressing block. The adjustment plates are all provided with adjustment grooves extending in the vertical direction. The adjusting rod is simultaneously arranged in the two adjustment grooves and the pressing hole; a connecting hole is arranged on the linkage rod, and the connecting hole is arranged as a long waist hole. The adjusting rod is simultaneously arranged in the connecting holes of the first boom assembly and the second boom assembly.

7. The automatic hook-on and hook-off sling based on the double-slider motion mechanism according to claim 6, characterized in that, The middle part of the linkage rod is fixedly connected to the middle part of the corresponding connecting rod, and the linkage rod and the connecting rod form a cross-connection structure. The two ends of the linkage rod are respectively provided with a counterweight block and the connecting hole, and the limit block is arranged on the side of the corresponding connecting base away from the linkage seat.

8. The automatic hook-on and hook-off sling based on the double-slider motion mechanism according to claim 7, characterized in that, The two linkage rods on the first boom assembly are arranged on both sides of the two connecting rods, and the two linkage rods on the second boom assembly are arranged between the two connecting rods.

9. The automatic hook - unhooking sling based on a double - slider motion mechanism according to claim 6, characterized in that, The cross-section of the adjusting rod is arranged in a quadrilateral structure with two arc-shaped sides and two straight sides. The two straight sides of the cross-section of the adjusting rod are arranged in parallel. The cross-section shape of the pressing hole on the pressing block is consistent with the cross-section shape of the adjusting rod. The groove width of the adjusting groove is correspondingly set with the distance between the two straight sides of the cross-section of the adjusting rod.

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