Special self-locking rotary anti-unhooking device for lifting hook of portal crane shaped like Chinese character'shan '

Abstract

The invention relates to the technical field of lifting hook devices, and provides a special self-locking rotary type anti-unhooking device for a lifting hook of an E-shaped portal crane, which comprises a lifting frame, a lifting hook bracket, a hook body mechanism, a self-locking mechanism and a correcting mechanism, a pulley shaft is rotatably arranged in the lifting frame, and the lifting hook bracket is rotatably arranged on the lifting frame; the hook body mechanism is rotationally arranged on the lifting hook support, the hook body mechanism is arranged to be in an E shape and used for lifting a heavy object, the self-locking mechanism is arranged on the side, close to the lifting hook support, of the hook body mechanism and used for preventing a steel wire from being separated from the hook body mechanism, and the correcting mechanism is arranged on the hook body mechanism. And the correcting mechanism is used for correcting the hoisting position of the steel wire hoisted on the hook body mechanism. By means of the technical scheme, the problem that in the prior art, an E-shaped lifting hook is difficult to correct the fixing positions of steel wires hoisted on the two sides is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hook devices, and in particular to a self-locking rotary anti-hooking device specially used for a mountain-shaped gantry crane hook. Background Art

[0002] The "mountain" hook is a hook of a specific shape, used for heavy-duty boom devices. It is designed in the shape of a "mountain" to adapt to specific hanging and lifting needs. In lifting machinery, the hook is one of the most common lifting tools. It is suspended on the steel wire rope of the lifting mechanism through parts such as pulleys and is used to lift and move heavy objects. Both sides of the "mountain" hook can be used to lift heavy objects. By hanging the steel wire on the heavy object on the hooks on both sides of the "mountain" hook, the heavy object can be made more stable during lifting. The "mountain" setting can effectively disperse the load and reduce the stress concentration at a single contact point, thereby improving the overall strength and durability of the hook.

[0003] Since the steel wire can be hoisted on both sides of the U-shaped hook, in order to ensure the balance and stability of the heavy object, the position of the steel wire on the hook needs to be corrected. The traditional U-shaped hook uses the gravity of the heavy object to pull the steel wire to slide on the hook, which may cause the hoisting position of the heavy object to be unstable and the center of gravity of the heavy object to be unstable and shake. The shaking of the heavy object may cause the deflection of the U-shaped hook. When the deflection angle of the U-shaped hook is too large, the steel wire may be unhooked on the hook. In order to ensure safety when hoisting heavy objects, we proposed a self-locking rotating anti-unhooking device specially used for the U-shaped gantry crane hook. Summary of the invention

[0004] The present invention provides a self-locking rotary anti-hooking device specially used for a U-shaped gantry crane hook, which solves the problem in the related art that it is difficult to correct the fixing positions of steel wires hoisted on both sides of the U-shaped hook.

[0005] The technical solution of the present invention is as follows: A self-locking rotary anti-unhooking device specially used for a mountain-shaped gantry crane hook comprises a lifting frame, a hook bracket, a hook body mechanism, a self-locking mechanism and a correction mechanism, wherein a pulley shaft is rotatably arranged in the lifting frame, the hook bracket is rotatably arranged on the lifting frame, the hook body mechanism is rotatably arranged on the hook bracket, the hook body mechanism is arranged in a mountain shape, the hook body mechanism is used for lifting heavy objects, the self-locking mechanism is arranged on a side of the hook body mechanism close to the hook bracket, the self-locking mechanism is used for preventing a steel wire from detaching from the hook body mechanism, the correction mechanism is arranged on the hook body mechanism, and the correction mechanism is used for correcting the lifting position of the steel wire hoisted on the hook body mechanism.

[0006] The hook body mechanism includes a connecting column, a curved hook and a threading hole. The connecting column is rotatably connected to the hook bracket. Two curved hooks are provided. The two curved hooks are arranged on one end of the connecting column away from the hook bracket. The two curved hooks are arranged opposite to each other. The curved hooks are in contact with the self-locking mechanism. The threading hole is opened on the side of the curved hook close to the connecting column.

[0007] The self-locking mechanism includes a support ear 1, a baffle and a spring sheet. The support ear 1 is provided with two, and the two support ears 1 are arranged opposite to each other. The support ear 1 is arranged on the connecting column. The baffles are provided with two, and the two baffles are rotatably arranged on the two support ears 1 respectively. The spring sheet is arranged on the connecting column, and a spring sheet is arranged under each baffle, and the spring sheet is in contact with the baffle, and one end of the baffle away from the support ear 1 is in contact with the bent hook, and guard plates are arranged on both sides of one end of the baffle close to the bent hook.

[0008] The correction mechanism includes a support platform, an offset assembly, a deflection assembly and a quick-opening assembly. The support platform is arranged on the connecting column, and the support platform is arranged between the two threading holes. The offset assembly is arranged on the hook. The offset assembly is used to support the steel wire and drive it to deflect on the hook. The deflection assembly is arranged on the support platform, and the offset assembly cooperates with the deflection assembly. The deflection assembly is used to adjust the position of the steel wires on the two hooks through the offset assembly. The quick-opening assembly is arranged on the deflection assembly, and the quick-opening assembly is used to prevent the offset assembly from supporting the steel wire.

[0009] The offset assembly includes a second support ear, a traction rope and a wire collection groove. There are two second support ears, and the two second support ears are arranged on the connecting column opposite to each other. The second support ear is arranged between the first support ear and the threading hole. A roller is rotatably arranged on the second support ear. The two ends of the traction rope are respectively connected to one end of the two hooks away from the connecting column. The wire collection groove is opened on a side of the hook close to the second support ear, and the part of the traction rope on the side of the fixing member passes through the second support ear, the threading hole and the deflection frame in sequence.

[0010] The deflection assembly includes a half-moon split bearing 1, a half-moon split bearing 2 and a deflection frame. The half-moon split bearing 1 is fixedly arranged on the support platform. The half-moon split bearing 2 is detachably connected to the half-moon split bearing 1. When the half-moon split bearing 2 is connected to the half-moon split bearing 1, an annular bearing is formed. The deflection frame is rotatably arranged on the annular bearing. A roller is rotatably arranged on both sides of the deflection frame. A fixing part is slidably arranged under the deflection frame. The traction rope passes through the fixing part, and the middle position of the traction rope is fixed on the fixing part. The fixing part can slide vertically on the deflection frame.

[0011] The quick-opening assembly includes a clamping frame 1, a clamping frame 2 and a clamping block. The clamping frame 1 is rotatably arranged on the deflection frame, and the clamping frame 1 is in contact with the fixing member. The clamping frame 2 is rotatably arranged on the deflection frame, and the clamping frame 2 is in contact with the fixing member. The clamping frame 1 and the clamping frame 2 are arranged opposite to each other. The clamping block is arranged between the clamping frame 1 and the clamping frame 2, and is detachably connected to the clamping frame 1 and the clamping frame 2. The clamping block is arranged below the deflection frame.

[0012] The working principle and beneficial effects of the present invention are: 1. In the present invention, a baffle and a guard plate are provided, and a spring plate supports the baffle to fit the inner side of the hook. When the steel wire is hung on the hook, the steel wire squeezes the baffle to rotate the baffle. After the steel wire enters the hook, the spring plate pushes the baffle to rotate to prevent the steel wire from being unhooked. At the same time, the guard plates on both sides of the baffle can prevent the steel wire from contacting the edge of the baffle to lift the baffle and then unhook it, thereby reducing the risk of unhooking; 2. In the present invention, by setting a traction rope and a wire take-up groove, when the steel wire squeezes the traction rope, the traction ropes on both sides pull the deflection frame to rotate to both sides, thereby keeping the steel wires on both sides balanced. The steel wire moves under the support of the second support ear and the roller on the deflection frame to keep the balance of the steel wires on both sides. When the steel wire contacts the traction rope, the contact surface is smaller than when the steel wire contacts the hook. Under the action of gravity, the steel wire can slide on the traction rope to a balanced position, and then the gravity of the weight is automatically corrected. After opening the quick-opening assembly, the traction rope is released, the steel wire falls on the hook, and the traction rope falls into the wire take-up groove, completing the correction of the position of the steel wires on the two hooks; 3. In the present invention, the clamping frame 1 and the clamping block are provided, and the clamping frame 1 and the clamping frame 2 are rotated and fitted to clamp the fixed block. At this time, the clamping block is clamped between the clamping frame 1 and the clamping frame 2. When the traction rope is corrected for the steel wire, the clamping block can be knocked down so that the clamping frame 1 and the clamping frame 2 do not fix the clamping block. At this time, the traction rope is loosened and the steel wire falls on the hook; 4. In the present invention, a self-locking mechanism is provided to prevent the steel wire from pushing the baffle support open and thus becoming unhooked. A correction mechanism is provided to allow the steel wire to be adjusted in position through the different weights of the steel wires on both sides after being hung on the hook, thereby allowing correction to be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Another perspective structural schematic diagram of the present invention as a whole; Figure 3 It is a schematic diagram of the partial structure of the hook body support in the present invention; Figure 4 It is a schematic diagram of the internal cross-sectional structure of the hook body of the present invention; Figure 5 It is a schematic diagram of the internal partial cross-sectional structure of the correction mechanism and the hook in the present invention; Figure 6 It is a partial cross-sectional structural schematic diagram of the quick-opening assembly in the present invention.

[0015] In the figure: 1. lifting frame; 2. pulley shaft; 3. hook bracket; 4. connecting column; 5. bent hook; 6. threading hole; 7. support ear 1; 8. baffle; 9. spring sheet; 10. support platform; 11. support ear 2; 12. traction rope; 13. wire collection groove; 14. half-moon split bearing 1; 15. half-moon split bearing 2; 16. deflection frame; 17. fixing piece; 18. clamping frame 1; 19. clamping frame 2; 20. clamping block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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 work are within the scope of protection of the present invention.

[0017] like Figure 1 to Figure 6As shown, this embodiment proposes a self-locking rotary anti-unhooking device specially used for a mountain-shaped gantry crane hook, comprising a lifting frame 1, a hook bracket 3, a hook body mechanism, a self-locking mechanism and a correction mechanism. A pulley shaft 2 is rotatably arranged in the lifting frame 1, the hook bracket 3 is rotatably arranged on the lifting frame 1, the hook body mechanism is rotatably arranged on the hook bracket 3, the hook body mechanism is arranged in a mountain shape, the hook body mechanism is used to lift heavy objects, the self-locking mechanism is arranged on the hook body mechanism on one side close to the hook bracket 3, the self-locking mechanism is used to prevent the steel wire from detaching from the hook body mechanism, the correction mechanism is arranged on the hook body mechanism, the correction mechanism is used to correct the lifting position of the steel wire hoisted on the hook body mechanism, the two steel wires on the heavy object are respectively hung on two curved hooks 5, and then corrected by the correction mechanism, the self-locking mechanism prevents the steel wire from detaching, and the heavy object with more stable lifting is less likely to be unhooked.

[0018] like Figure 1~Figure 3 As shown, the hook body mechanism includes a connecting column 4, a hook 5 and a threading hole 6. The connecting column 4 is rotatably connected to the hook bracket 3. Two hooks 5 are provided. The two hooks 5 are arranged on the end of the connecting column 4 away from the hook bracket 3. The two hooks 5 are arranged opposite to each other. The hooks 5 are in contact with the self-locking mechanism, and the threading hole 6 is opened on the side of the hook 5 close to the connecting column 4.

[0019] like Figure 1 to Figure 6 As shown, the self-locking mechanism includes a support ear 7, a baffle 8 and a spring sheet 9. Two support ears 7 are provided, and the two support ears 7 are arranged opposite to each other. The support ear 7 is arranged on the connecting column 4, and two baffles 8 are provided. The two baffles 8 are rotatably arranged on the two support ears 7, and the spring sheet 9 is arranged on the connecting column 4. A spring sheet 9 is arranged under each baffle 8, and the spring sheet 9 is in contact with the baffle 8. The end of the baffle 8 away from the support ear 7 is in contact with the hook 5. Guard plates are arranged on both sides of the end of the baffle 8 close to the hook 5. The spring sheet 9 supports the baffle 8 to fit the inner side of the hook 5. When the steel wire is hung on the hook 5, the steel wire squeezes the baffle 8 to make the baffle 8 rotate. After the steel wire enters the hook 5, the baffle 8 pushed by the spring sheet 9 rotates to prevent the steel wire from being unhooked. At the same time, the guard plates on both sides of the baffle 8 can prevent the steel wire from contacting the edge of the baffle 8 to lift the baffle 8 and then unhook, thereby reducing the risk of unhooking.

[0020] like Figure 1 to Figure 6 As shown, the correction mechanism includes a support platform 10, an offset assembly, a deflection assembly and a quick-opening assembly. The support platform 10 is arranged on the connecting column 4, and the support platform 10 is arranged between the two threading holes 6. The offset assembly is arranged on the hook 5. The offset assembly is used to support the steel wire and drive it to deflect on the hook 5. The deflection assembly is arranged on the support platform 10. The offset assembly cooperates with the deflection assembly. The deflection assembly is used to adjust the position of the steel wires on the two hooks 5 through the offset assembly. The quick-opening assembly is arranged on the deflection assembly. The quick-opening assembly is used to prevent the offset assembly from supporting the steel wire.

[0021] like Figure 1~Figure 4 As shown, the offset assembly includes a second support ear 11, a traction rope 12 and a wire collection groove 13. Two support ears 11 are provided. The two support ears 11 are arranged opposite to each other on the connecting column 4. The support ear 11 is arranged between the support ear 1 7 and the threading hole 6. A roller is rotatably arranged on the support ear 11. The two ends of the traction rope 12 are respectively connected to the ends of the two hooks 5 away from the connecting column 4. The wire collection groove 13 is arranged on the hook 5 on a side close to the second support ear 11. The part of the traction rope 12 on the side of the fixing member 17 passes through the second support ear 11, the threading hole 6 and the deflection frame 16 in sequence. The center of the traction rope 12 is fixed on the fixing member 17. When the fixing member 17 is fixed by the quick-opening assembly, both sides of the traction rope 12 are in the wire collection state. Outside the groove 13, when the steel wire squeezes the traction rope 12, the traction ropes 12 on both sides pull the deflection frame 16 to rotate to both sides so as to keep the steel wires on both sides balanced. The steel wire moves under the support of the rollers on the support ear 11 and the deflection frame 16 to keep the balance of the steel wires on both sides. When the steel wire contacts the traction rope 12, the contact surface is smaller than when the steel wire contacts the hook 5. Under the action of gravity, the steel wire can slide on the traction rope 12 to a balanced position, and then the correction is automatically completed by the gravity of the weight. After opening the quick-opening component, the traction rope 12 is released, and the steel wire falls on the hook 5. The traction rope 12 falls into the wire-collecting groove 13, and the position of the steel wires on the two hooks 5 is corrected.

[0022] like Figure 4~Figure 6 As shown, the deflection assembly includes a half-moon split bearing 14, a half-moon split bearing 15 and a deflection frame 16. The half-moon split bearing 14 is fixedly set on the support platform 10, and the half-moon split bearing 15 is detachably connected to the half-moon split bearing 14. When the half-moon split bearing 15 is connected to the half-moon split bearing 14, an annular bearing is formed. The deflection frame 16 is rotatably set on the annular bearing. A roller is rotatably set on both sides of the deflection frame 16. A fixing part 17 is slidably set under the deflection frame 16. The traction rope 12 passes through the fixing part 17, and the middle position of the traction rope 12 is fixed on the fixing part 17. The fixing part 17 can slide vertically on the deflection frame 16. The deflection frame 16 can be conveniently installed on the support platform 10 through the half-moon split bearing 14 and the half-moon split bearing 15. The support platform 10 is located in the center of the two threading holes 6. The deflection frame 16 maintains balance when the traction rope 12 corrects the steel wires on both sides.

[0023] like Figure 5~Figure 6As shown, the quick-opening assembly includes a clamping frame 18, a clamping frame 19 and a clamping block 20. The clamping frame 18 is rotatably arranged on the deflection frame 16, and the clamping frame 18 is in contact with the fixing member 17. The clamping frame 19 is rotatably arranged on the deflection frame 16, and the clamping frame 19 is in contact with the fixing member 17. The clamping frame 18 and the clamping frame 19 are arranged opposite to each other. The clamping block 20 is arranged between the clamping frame 18 and the clamping frame 19, and is connected to the clamping frame 18 and the fixing member 17. The clamping frame 19 is detachably connected, and the clamping block 20 is arranged under the deflection frame 16. When the clamping frame 18 and the clamping frame 19 are rotated and fitted together, the fixed block is clamped. At this time, the clamping block 20 is clamped between the clamping frame 18 and the clamping frame 19. When the traction rope 12 has corrected the steel wire, the clamping block 20 can be knocked down so that the clamping frame 18 and the clamping frame 19 do not fix the clamping block 20. At this time, the traction rope 12 is loosened and the steel wire falls on the hook 5.

[0024] In summary, the working principle of this kind of self-locking rotary anti-unhooking device for mountain-shaped gantry crane hook is: The steel wire is hung on the hook 5, and the baffle 8 squeezes the spring sheet 9 to make the baffle 8 rotate, and the steel wire falls on the traction rope 12. The traction ropes 12 on the two hooks 5 support the steel wire. At this time, the traction ropes 12 on both sides pull the deflection frame 16 to rotate. After the steel wires on both sides are offset to the appropriate position, the clamping block 20 is knocked off. At this time, the clamping frame 18 and the clamping frame 2 19 rotate, and the fixing part 17 slides upward on the deflection frame 16. The traction rope 12 is loosened and falls into the wire-collecting groove 13, and the steel wire falls on the hook 5.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-locking rotary anti-unhooking device for a mountain-shaped gantry crane hook, characterized in that: include: A lifting frame (1), wherein a pulley shaft (2) is rotatably arranged in the lifting frame (1); A hook bracket (3), the hook bracket (3) being rotatably mounted on the hanging frame (1); A hook mechanism, the hook mechanism being rotatably arranged on the hook bracket (3), the hook mechanism being arranged in a mountain shape, and the hook mechanism being used for hoisting heavy objects; A self-locking mechanism, the self-locking mechanism being arranged on a side of the hook body mechanism close to the hook bracket (3), the self-locking mechanism being used to prevent the steel wire from escaping from the hook body mechanism; A correction mechanism is arranged on the hook body mechanism, and is used to correct the hoisting position of the steel wire hoisted on the hook body mechanism.

2. The self-locking rotary anti-unhooking device for the mountain-shaped gantry crane hook according to claim 1 is characterized in that: The hook mechanism comprises: A connecting column (4), the connecting column (4) being rotatably connected to the hook bracket (3); A curved hook (5), wherein two curved hooks (5) are provided, and the two curved hooks (5) are provided on one end of the connecting column (4) away from the hook bracket (3), and the two curved hooks (5) are arranged opposite to each other, and the curved hooks (5) are in contact with the self-locking mechanism; A threading hole (6), the threading hole (6) being formed on a side of the curved hook (5) close to the connecting column (4).

3. The self-locking rotary anti-unhooking device for the mountain-shaped gantry crane hook according to claim 2 is characterized in that: The self-locking mechanism comprises: A support ear (7), wherein two support ears (7) are provided, and the two support ears (7) are arranged opposite to each other, and the support ear (7) is arranged on the connecting column (4); A baffle (8), wherein two baffles (8) are provided, and the two baffles (8) are rotatably arranged on the two support ears (7) respectively; A spring sheet (9), the spring sheet (9) being arranged on the connecting column (4), one spring sheet (9) being arranged below each baffle sheet (8), the spring sheet (9) being in contact with the baffle sheet (8).

4. The self-locking rotary anti-unhooking device for the hook of a mountain-shaped gantry crane according to claim 3 is characterized in that: An end of the baffle (8) away from the support ear (7) contacts the curved hook (5), and guard plates are provided on both sides of an end of the baffle (8) close to the curved hook (5).

5. The self-locking rotary anti-unhooking device for the hook of a mountain-shaped gantry crane according to claim 4 is characterized in that: The correction mechanism comprises: A support platform (10), the support platform (10) being arranged on the connecting column (4), and the support platform (10) being arranged between the two threading holes (6); An offset component, the offset component being arranged on the hook (5), and being used to support the steel wire and drive it to be offset on the hook (5); a deflection assembly, the deflection assembly being arranged on the support platform (10), the offset assembly cooperating with the deflection assembly, the deflection assembly being used to adjust the positions of the steel wires on the two hooks (5) through the offset assembly; A quick-opening assembly is arranged on the deflection assembly, and the quick-opening assembly is used to prevent the offset assembly from supporting the steel wire.

6. The self-locking rotary anti-unhooking device for the mountain-shaped gantry crane hook according to claim 5 is characterized in that: The offset assembly comprises: Support lug 2 (11), two support lugs 2 (11) are provided, the two support lugs 2 (11) are arranged opposite to each other on the connecting column (4), the support lug 2 (11) is arranged between the support lug 1 (7) and the threading hole (6), and a roller is rotatably provided on the support lug 2 (11); A traction rope (12), wherein both ends of the traction rope (12) are respectively connected to one end of the two hooks (5) away from the connection column (4); A wire collection groove (13), wherein the wire collection groove (13) is provided on a side of the curved hook (5) close to the second support ear (11).

7. The self-locking rotary anti-unhooking device for the hook of a mountain-shaped gantry crane according to claim 6 is characterized in that: The deflection assembly comprises: A half-moon split bearing (14), wherein the half-moon split bearing (14) is fixedly arranged on the support platform (10); A second half-moon split bearing (15), wherein the second half-moon split bearing (15) is detachably connected to the first half-moon split bearing (14), and when the second half-moon split bearing (15) is connected to the first half-moon split bearing (14), an annular bearing is formed; A deflection frame (16), the deflection frame (16) being rotatably disposed on the annular bearing, one roller being rotatably disposed on each of two sides of the deflection frame (16), and a fixing member (17) being slidably disposed below the deflection frame (16).

8. The self-locking rotary anti-unhooking device for the hook of a mountain-shaped gantry crane according to claim 7 is characterized in that: The traction rope (12) passes through the fixing member (17), and the middle position of the traction rope (12) is fixed on the fixing member (17), and the fixing member (17) can slide vertically on the deflection frame (16).

9. The self-locking rotary anti-unhooking device for the hook of a mountain-shaped gantry crane according to claim 8, characterized in that: The quick-opening assembly comprises: A clamping frame (18), wherein the clamping frame (18) is rotatably disposed on the deflection frame (16), and the clamping frame (18) is in contact with the fixing member (17); A second clamping frame (19), wherein the second clamping frame (19) is rotatably disposed on the deflection frame (16), the second clamping frame (19) is in contact with the fixing member (17), and the first clamping frame (18) and the second clamping frame (19) are disposed opposite to each other; A clamping block (20), the clamping block (20) being arranged between the first clamping frame (18) and the second clamping frame (19), and being detachably connected to the first clamping frame (18) and the second clamping frame (19), the clamping block (20) being arranged below the deflection frame (16).

10. A self-locking rotary anti-unhooking device for a mountain-shaped gantry crane hook according to claim 9, characterized in that: The portion of the traction rope (12) on one side of the fixing member (17) passes through the second support ear (11), the threading hole (6) and the deflection frame (16) in sequence.

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