Crane hanging bracket with adjustable lifting angle

Abstract

The invention relates to the technical field of crane lifting appliances, in particular to a lifting-angle-adjustable crane hanging bracket which comprises two I-shaped beams, the two I-shaped beams are parallel to each other, the peripheries of the two I-shaped beams are jointly connected with an annular guide block, an annular transfer hanging bracket is rotatably mounted on the periphery of the annular guide block, and the annular transfer hanging bracket is rotatably mounted on the periphery of the annular guide block. And a rotating part is arranged at one end between the two I-shaped beams. The annular transfer hanging bracket is driven by the rotating component to rotate along the periphery of the annular guide block, the angle of goods is adjusted, the flexibility and the use convenience of the lifting appliance are improved, after adjustment is completed, the brake disc is combined with the positioning disc, and under the friction force braking effect between the positioning disc and the brake disc, the goods can be conveyed to the lifting appliance. The connecting sleeve is braked on the periphery of the adjusting shaft rod, the braking effect on the adjusting shaft rod is achieved under the torsion limiting effect of the key groove and the driven key block, unnecessary rotation of the adjusting shaft rod in the using period is avoided, and the stability of cargo lifting can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of crane hoisting equipment, in particular to a crane hanger with adjustable lifting angle. Background Art

[0002] A sling is a device used to lift heavy objects in a lifting machine. It can be used as a special sling on a crane for a long time, or as a replaceable auxiliary sling hung on a hook for temporary use. It is often used in warehouses and yards with multiple types of goods to improve operating efficiency and the stability of cargo lifting.

[0003] According to the Chinese patent application publication number: CN117682421A, a crane sling anti-tilt device is disclosed, which fixes the sling and drives the sling to move by setting a lifting adjustment mechanism on the crossbeam to achieve the height adjustment of the two ends of the sling, and achieve the effect of ensuring the balance of the cargo and preventing tilting. However, the crane sling anti-tilt device still has some shortcomings. For example, the crane sling anti-tilt device does not have the technical effect of adjusting the angle of the cargo, resulting in the need to manually perform interference adjustment on the dropping angle of the cargo when dropping it, resulting in the above-mentioned crane sling anti-tilt device having low actual flexibility and insufficient convenience.

[0004] What happened

[0005] To this end, the present invention provides a crane hanger with adjustable lifting angle to solve the above-mentioned problems.

[0006] The present invention provides the following technical solution: a crane hanger with adjustable lifting angle, comprising an I-beam, wherein the number of the I-beams is two, and the two I-beams are arranged parallel to each other, and the peripheries of the two I-beams are commonly connected to an annular guide block, and an annular transfer hanger is rotatably installed on the periphery of the annular guide block, and a rotating component is provided at one end between the two I-beams;

[0007] The rotating component includes a power box fixedly installed between the two I-beams, and an adjusting shaft is rotatably installed on the side of the power box away from the center of the annular guide block, and an adjusting bevel gear is fixedly installed on one end of the outer wall of the adjusting shaft, and an annular basin gear is fixedly installed on the top of the annular adapter hanger, and a plurality of passive key blocks distributed at equal angles are fixedly provided on the outer wall of the end of the adjusting shaft away from the adjusting bevel gear. An AC motor is fixedly installed on the side of the power box away from the adjusting shaft, and a driving shaft is fixedly installed on the output shaft end of the AC motor, and the driving shaft movably passes through the power box and extends to the interior of the power box, and a centrifugal disk is fixedly installed on the outer wall of the driving shaft, and a plurality of centrifugal grooves are opened at equal angles on the outer wall of the centrifugal disk, and a plurality of centrifugal grooves are opened at one end close to the inner wall of the centrifugal disk with a rope threading hole, and the rope threading hole movably passes through the interior of the centrifugal disk and extends to the centrifugal disk close to the adjusting bevel gear. The cam is provided with a plurality of angularly distributed active key blocks on the outer wall of one end of the driving shaft close to the adjusting shaft, and a connecting sleeve is provided on the inner wall of the connecting sleeve with a plurality of angularly distributed key slots, the key slots are matched with the specifications of the passive key block and the active key block, and the key slots are slidably located on the periphery of the passive key block, and a pressure storage spring is rotatably installed on the side of the connecting sleeve away from the centrifugal disk through a universal connector, the pressure storage spring is located on the periphery of the adjusting shaft, and one end of the pressure storage spring away from the connecting sleeve is fixedly connected to the inner wall of one side of the power box.

[0008] As a preferred solution of the present invention, the adjusting bevel gear is located at the top of the annular basin gear, and the adjusting bevel gear and the annular basin gear are meshed with each other.

[0009] As a preferred solution of the present invention, the axes of the driving shaft and the adjusting shaft are on the same straight line, and a slight gap is provided between an end of the driving shaft close to the adjusting shaft and an end of the adjusting shaft.

[0010] As a preferred solution of the present invention, the tension rope is fixedly installed between the centrifugal slide rod and the telescopic top rod, and a return spring is fixedly installed on the side of the telescopic top rod close to the tension rope. The return spring is located on the periphery of the tension rope, and the end of the return spring away from the telescopic top rod is fixedly connected to the surface of the centrifugal disk.

[0011] As a preferred solution of the present invention, a counterweight is fixedly mounted on one end of the centrifugal sliding rod away from the tension rope.

[0012] As a preferred solution of the present invention, an adapter bracket is integrally formed at one end of the telescopic top rod away from the tension rope, a rotating ball is rotatably installed inside the adapter bracket, and the outer surface of the rotating ball abuts against one side of the connecting sleeve.

[0013] As a preferred solution of the present invention, a positioning plate is fixedly installed on the inner wall of the power box on the side away from the AC motor, a pressure plate is fixedly installed on the outer wall of the connecting sleeve close to the positioning plate, and a plurality of brake discs distributed at equal angles are fixedly installed on the side of the pressure plate close to the positioning plate, and the brake disc and the side close to the positioning disc fit together.

[0014] As a preferred solution of the present invention, two symmetrically distributed cleaning components are provided inside the power box, and the cleaning components include two torsion shafts rotatably installed inside the power box, cylindrical cams are fixedly installed on the outer walls of the two torsion shafts, spiral cam grooves are opened on the outer walls of the two cylindrical cams, the spiral directions of the two spiral cam grooves are opposite, and two parallel distributed guide rods are fixedly installed inside the power box, the two guide rods are located at the top of the two torsion shafts, and guide blocks are slidably installed on the outer walls of the two guide rods, the tops of the two guide blocks are commonly connected to a connecting strip, and cam rods are fixedly installed on the bottoms of the two guide blocks, the two cam rods are respectively slidably located inside the two spiral cam grooves, a thrust pin is fixedly installed in the middle of the top of the connecting strip, an annular groove is opened on the outer wall of the connecting sleeve, and the thrust pin is slidably located inside the annular groove, and cleaning brushes are fixedly installed on the outer walls of the two torsion shafts, the two cleaning brushes are symmetrically distributed, and the two cleaning brushes are located at the bottom of the positioning disk and the brake disk.

[0015] As a preferred solution of the present invention, four suspension steel cables distributed at equal angles are fixedly installed on the bottom of the annular adapter hanger, and suspension hooks are fixedly installed on the bottom ends of the four suspension steel cables. Four lifting steel cables distributed at equal angles are fixedly installed on the inner wall of the annular guide block, and the ends of the four lifting steel cables away from the annular guide block are commonly connected to a winch block.

[0016] As a preferred solution of the present invention, a balance block is fixedly provided at one end of the top of the two I-beams away from the power box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the annular transfer hanger is driven to rotate along the periphery of the annular guide block by a rotating component to adjust the angle of the cargo, thereby improving the flexibility and convenience of the sling. After the adjustment is completed, the brake disc is combined with the positioning disc, and under the friction braking action between the positioning disc and the brake disc, the connecting sleeve is braked to the periphery of the adjusting shaft rod, and the braking action of the adjusting shaft rod is achieved under the torsion limiting action of the keyway and the passive key block, thereby avoiding unnecessary rotation of the adjusting shaft rod during use, and ensuring the stability of cargo lifting.

[0019] 2. In the present invention, the movement of the connecting sleeve in the rotating component also drives the annular groove provided inside the connecting sleeve to move together, and the annular groove drives the thrust pin, the connecting strip and the two guide blocks to slide along the two guide rods, and further drives the two cam rods to slide along the groove walls of the two spiral cam grooves, so that the two spiral cam grooves flip toward each other, and drive the two torsion shafts together with the two cleaning brushes to flip upward, so that when the positioning disc is separated from the brake disc, the two cleaning brushes flip upward and are located just between the positioning disc and the brake disc, so that when the pressure plate rotates with the connecting sleeve, the dust adsorbed on the friction surface of the brake disc can be removed under the friction action of the bristles of the cleaning brush and the brake disc, thereby ensuring that the brake disc has a good braking effect.

[0020] 3. In the present invention, after the angle adjustment of the cargo is completed, the connecting sleeve drives the annular groove to move in the reverse direction, so that the thrust pin, the connecting strip, and the two guide blocks slide in the reverse direction along the two guide rods, and the two guide blocks drive the two cam rods to slide in the reverse direction along the groove walls of the two spiral cam grooves, so that the two cylindrical cams rotate in the reverse direction, driving the two torsion shafts and the two cleaning brushes to flip downward and be pulled out from between the positioning disc and the brake disc, thereby ensuring that the cleaning brush will not interfere with the brake disc during the combination with the positioning disc. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the annular transfer hanger in the present invention;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the power box in the present invention;

[0025] Figure 5 It is a schematic diagram of the unfolded structure of the positioning disc and the brake disc in the present invention;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the centrifugal disk in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the connecting sleeve in the present invention;

[0028] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part B;

[0029] Fig. 9 It is a schematic diagram of the structure of the dust cleaning component in the present invention;

[0030] Fig.10 For the present invention Figure 7 Schematic diagram of the enlarged structure of part C.

[0031] In the figure: 1, I-beam; 2, annular guide block; 3, annular transfer hanger; 401, power box; 402, adjustment shaft; 4002, passive key block; 403, adjustment bevel gear; 404, annular basin gear; 405, AC motor; 406, drive shaft; 4006, active key block; 407, centrifugal disc; 408, centrifugal slide; 4008, counterweight; 409, rope threading hole; 4010, telescopic tube; 4011, centrifugal slide; 4012, telescopic top rod; 40121, transfer bracket; 40122, rotating ball; 4013 , pulling rope; 4014, return spring; 4015, connecting sleeve; 4016, keyway; 4017, pressure storage spring; 501, positioning plate; 502, pressure plate; 503, brake disc; 601, torsion shaft; 602, cylindrical cam; 603, spiral cam groove; 604, guide rod; 605, guide block; 606, connecting strip; 607, cam rod; 608, thrust pin; 609, ring groove; 6010, cleaning brush; 7, balance block; 8, suspension cable; 801, suspension hook; 9, lifting cable; 901, winch block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-10 The technical solution provided by the present invention specifically includes the following embodiments:

[0034] Embodiment 1:

[0035] A crane hanger with adjustable lifting angle, comprising an I-beam 1, two I-beams 1, two I-beams 1 arranged parallel to each other, an annular guide block 2 connected to the periphery of the two I-beams 1, an annular transfer hanger 3 rotatably installed on the periphery of the annular guide block 2, a rotating component is provided at one end between the two I-beams 1, four suspension steel cables 8 distributed at equal angles are fixedly installed at the bottom of the annular transfer hanger 3, the bottom ends of the four suspension steel cables 8 are all fixedly installed with suspension hooks 80β, and four suspension hooks distributed at equal angles are fixedly installed on the inner wall of the annular guide block 2. The lifting cables 9 of the four lifting cables 9 are connected to a winch block 901 at one end away from the annular guide block 2. A balance block 7 is fixedly arranged at one end of the top of the two I-beams 1 away from the power box 401, which is connected to the winch end of the crane through the set winch block 901. When in use, after hooking the four corners of the cargo with the four suspension hooks 801, the crane winches upward to lift the cargo upward, and drives the annular adapter hanger 3 to rotate along the periphery of the annular guide block 2 through the rotating component to adjust the angle of the cargo, thereby improving the flexibility of the sling and the convenience of use.

[0036] It should be noted that the rotating component includes a power box 401 fixedly installed between the two I-beams 1, and an adjusting shaft 402 is rotatably installed on the side of the power box 401 away from the center of the annular guide block 2, and an adjusting bevel gear 403 is fixedly installed on one end of the outer wall of the adjusting shaft 402, and an annular basin gear 404 is fixedly installed on the top of the annular adapter hanger 3. A plurality of passive key blocks 4002 with equal angles are fixed on the outer wall of the end of the adjusting shaft 402 away from the adjusting bevel gear 403, and an AC motor 400 is fixed on the side of the power box 401 away from the adjusting shaft 402. 05. A driving shaft 406 is fixedly installed at the output shaft end of the AC motor 405. The driving shaft 406 movably penetrates the power box 401 and extends to the inside of the power box 401. A centrifugal disk 407 is fixedly installed on the outer wall of the driving shaft 406. A plurality of centrifugal chutes 408 are provided at equal angles on the outer wall of the centrifugal disk 407. A rope threading hole 409 is provided at one end of the plurality of centrifugal chutes 408 close to the inner wall of the centrifugal disk 407. The rope threading hole 409 movably penetrates the inside of the centrifugal disk 407 and extends to the outer periphery of a side of the centrifugal disk 407 close to the adjusting bevel gear 403. A plurality of telescopic tubes 4010 distributed at equal angles are fixedly installed on one side of the centrifugal disk 407 near the adjusting bevel gear 403. The positions of the telescopic tubes 4010 correspond to the positions of the rope threading holes 409 one by one. Centrifugal slide bars 4011 are slidably arranged inside the centrifugal slide grooves 408. A tension rope 4013 is movably connected inside the rope threading holes 409. A telescopic top rod 4012 is slidably arranged inside the telescopic tubes 4010. A plurality of active key blocks 4006 distributed at equal angles are fixedly arranged on the outer wall of one end of the driving shaft 406 near the adjusting shaft 402. A connecting sleeve 4015 is provided for sliding, and a plurality of key slots 4016 with equal angles are provided on the inner wall of the connecting sleeve 4015, and the key slots 4016 are adapted to the specifications of the passive key block 4002 and the active key block 4006, and the key slots 4016 are slidably located at the periphery of the passive key block 4002, and a pressure storage spring 4017 is rotatably installed on the side of the connecting sleeve 4015 away from the centrifugal disk 407 through a universal connector, and the pressure storage spring 4017 is located at the periphery of the adjusting shaft 402, and one end of the pressure storage spring 4017 away from the connecting sleeve 4015 is fixedly connected to the inner wall of one side of the power box 401;

[0037] Specifically, the output shaft of the AC motor 405 drives the driving shaft 406 to rotate together with the centrifugal disk 407. The rotation of the centrifugal disk 407 drives the multiple centrifugal slide bars 4011 to rotate together. Under the action of centrifugal force, the multiple centrifugal slide bars 4011 and the counterweight block 4008 slide toward the periphery along the inner wall of the centrifugal slide groove 408, and further pull the multiple telescopic top rods 4012 along the multiple telescopic tubes 4010 to move toward one side of the centrifugal disk 407 under the connection of the multiple tension ropes 4013. During this period, the multiple return springs 4014 are compressed and stored. At the same time, due to the movement of the multiple telescopic top rods 4012, the compression storage springs 4017 are elastically released, pushing the connecting sleeve 4015 to approach the centrifugal disk. One side of 407 slides, causing the key slot 4016 to slide to the periphery of the active key block 4006. The driving shaft 406 and the adjusting shaft 402 are connected through the key slot 4016 to form a linkage effect. The rotation of the driving shaft 406 is directly transmitted to the adjusting shaft 402, thereby driving the adjusting shaft 402 to rotate together with the adjusting bevel gear 403. The rotation of the adjusting bevel gear 403 drives the annular basin gear 404 to rotate. The annular basin gear 404 drives the annular transfer hanger 3 to rotate along the periphery of the annular guide block 2, thereby driving the four suspension cables 8 to rotate together with the four suspension hooks 801 to adjust the angle of the cargo, which greatly improves the flexibility and convenience of the use of the sling and facilitates the lifting and adjustment of the cargo.

[0038] Furthermore, the adjusting bevel gear 403 is located at the top of the annular basin teeth 404, and the adjusting bevel gear 403 and the annular basin teeth 404 are meshed with each other. By setting the adjusting bevel gear 403 and the annular basin teeth 404 to be meshed with each other, the power of the adjusting bevel gear 403 can be transmitted to the annular basin teeth 404, and then the annular adapter hanger 3 is driven to rotate through the annular basin teeth 404.

[0039] Furthermore, the axes of the driving shaft 406 and the adjusting shaft 402 are on the same straight line, and a slight gap is set between the end of the driving shaft 406 close to the adjusting shaft 402 and the end of the adjusting shaft 402. By setting the axes of the driving shaft 406 and the adjusting shaft 402 on the same straight line, it is convenient to transmit the power of the driving shaft 406 to the adjusting shaft 402 through the connecting sleeve 4015, and setting a gap between the driving shaft 406 and the adjusting shaft 402 can effectively avoid contact friction between the driving shaft 406 and the adjusting shaft 402, thereby improving the service life of the driving shaft 406 and the adjusting shaft 402.

[0040] Furthermore, a counterweight block 4008 is fixedly installed on one end of the centrifugal slide bar 4011 away from the tension rope 4013. By setting the counterweight block 4008, the rotational centrifugal force of the centrifugal slide bar 4011 can be increased, so that after the centrifugal slide bar 4011 rotates with the centrifugal disk 407, the centrifugal slide bar 4011 can slide outward along the centrifugal slide groove 408 more easily.

[0041] Furthermore, an adapter bracket 40121 is integrally formed at one end of the telescopic top rod 4012 away from the tension rope 4013, and a rotating ball 40122 is rotatably installed inside the adapter bracket 40121. The outer surface of the rotating ball 40122 abuts against one side of the connecting sleeve 4015. By setting the adapter bracket 40121, the rotating ball 40122 can be rotatably installed on the end of the telescopic top rod 4012 to avoid direct contact between the end of the telescopic top rod 4012 and the side of the connecting sleeve 4015. Through the rolling connection effect of the rotating ball 4012, the friction between the telescopic top rod 4012 and the connecting sleeve 4015 can be reduced during rotation, thereby facilitating the rotation of the telescopic top rod 4012 and also avoiding friction loss caused by direct contact between the telescopic top rod 4012 and the connecting sleeve 4015.

[0042] Embodiment 2:

[0043] A positioning disc 501 is fixedly installed on the inner wall of the power box 401 away from the AC motor 405, a pressure disc 502 is fixedly installed on the outer wall of the connecting sleeve 4015 close to the positioning disc 501, and a plurality of brake discs 503 distributed at equal angles are fixedly installed on the side of the pressure disc 502 close to the positioning disc 501, and the brake disc 503 and the side close to the positioning disc 501 are in contact with each other;

[0044] Specifically, in this embodiment, when the rotating assembly is in operation, the connecting sleeve 4015 also drives the pressure plate 502 to move together with the brake disc 503, so that the brake disc 503 and the positioning disc 501 release the braking effect, thereby facilitating the adjustment of the angle of the cargo. When the cargo angle adjustment is completed, the AC motor 405 is turned off, the driving shaft 406 loses the driving force and stops rotating, the centrifugal force exerted on the multiple counterweights 4008 and the centrifugal slide rod 4011 disappears, and the rebound force of the multiple return springs 4014 is released, pushing the multiple telescopic top rods 4012 to slide in the opposite direction along the inner walls of the multiple telescopic tubes 4010, and pulling the centrifugal slide rod 4011 along the inner wall of the centrifugal slide groove 408 through the tension rope 4013. The connecting sleeve 4015 slides inside, and the multiple telescopic top rods 4012 slide in the opposite direction to push the connecting sleeve 4015 to the side away from the centrifugal disk 407, so that the connecting sleeve 4015 drives the multiple key slots 4016 away from the active key block 4006, and drives the brake disc 503 to gradually approach the positioning disc 501 until the brake disc 503 is combined with the positioning disc 501, and under the friction braking action between the positioning disc 501 and the brake disc 503, the connecting sleeve 4015 is braked to the periphery of the adjusting shaft rod 402, and the braking action of the adjusting shaft rod 402 is realized under the torsion limiting action of the key slot 4016 and the passive key block 4002, thereby avoiding unnecessary rotation of the adjusting shaft rod 402 during use, and ensuring the stability of cargo lifting.

[0045] Embodiment three:

[0046] The power box 401 is provided with two symmetrically distributed cleaning components, which include two torsion shafts 601 rotatably mounted inside the power box 401, cylindrical cams 602 are fixedly mounted on the outer walls of the two torsion shafts 601, spiral cam grooves 603 are opened on the outer walls of the two cylindrical cams 602, and the spiral directions of the two spiral cam grooves 603 are opposite, and two parallel guide rods 604 are fixedly mounted inside the power box 401, the two guide rods 604 are located at the tops of the two torsion shafts 601, and guide blocks 605 are slidably mounted on the outer walls of the two guide rods 604. The two guide blocks The top of the two guide blocks 605 is connected to a connecting strip 606, and the bottom of the two guide blocks 605 is fixedly installed with a cam rod 607, and the two cam rods 607 are respectively slidably located inside the two spiral cam grooves 603. A thrust pin 608 is fixedly installed in the middle of the top of the connecting strip 606, and an annular groove 609 is opened on the outer wall of the connecting sleeve 4015. The thrust pin 608 is slidably located inside the annular groove 609. Cleaning brushes 6010 are fixedly installed on the outer walls of the two torsion shafts 601. The two cleaning brushes 6010 are symmetrically distributed and are located at the bottom of the positioning plate 501 and the brake plate 503.

[0047] Specifically, in this embodiment, when the rotating part is in operation, the movement of the connecting sleeve 4015 also drives the annular groove 609 provided therein to move together, and the annular groove 609 drives the thrust pin 608, the connecting strip 606 and the two guide blocks 605 to slide along the two guide rods 604, and further drives the two cam rods 607 to slide along the groove walls of the two spiral cam grooves 603, so that the two spiral cam grooves 603 are flipped toward each other, and the two torsion shafts 601 are driven to flip upward together with the two cleaning brushes 6010, so that when the positioning disc 501 is separated from the brake disc 503, the two cleaning brushes 6010 are flipped upward and are located just between the positioning disc 501 and the brake disc 503, so that when the pressure plate 502 rotates with the connecting sleeve 4015, the bristles of the cleaning brushes 6010 and the brake disc 503 are The dust adsorbed on the friction surface of the brake disc 503 can be removed under the friction action of the disc 503, ensuring that the brake disc 503 has a good braking effect. After the cargo angle adjustment is completed, the connecting sleeve 4015 drives the annular groove 609 to move in the reverse direction, so that the thrust pin 608, the connecting strip 606, and the two guide blocks 605 slide in the reverse direction along the two guide rods 604. The two guide blocks 605 drive the two cam rods 607 to slide in the reverse direction along the groove walls of the two spiral cam grooves 603, so that the two cylindrical cams 602 rotate in the reverse direction, driving the two torsion shafts 601 and the two cleaning brushes 6010 to flip downward and be pulled out from between the positioning disc 501 and the brake disc 503, ensuring that the brake disc 503 will not be interfered with by the cleaning brush 6010 during the combination with the positioning disc 501.

[0048] The crane hanger with adjustable lifting angle in this solution is connected to the hoisting end of the crane through the hoisting block 901 when working. When in use, after the four hanging hooks 801 are hooked on the four corners of the cargo, the crane hoists upward to lift the cargo upward.

[0049] When the angle of the cargo needs to be adjusted, the output shaft of the AC motor 405 drives the drive shaft 406 to rotate together with the centrifugal disk 407, and the rotation of the centrifugal disk 407 drives the multiple centrifugal slide bars 4011 to rotate together. Under the action of centrifugal force, the multiple centrifugal slide bars 4011 and the counterweight block 4008 slide toward the periphery along the inner wall of the centrifugal slide groove 408, and further pull the multiple telescopic top rods 4012 along the multiple telescopic tubes 4010 to move toward one side of the centrifugal disk 407 under the connection of the multiple tension ropes 4013. During this period, the multiple return springs 4014 are compressed and stored. At the same time, due to the movement of the multiple telescopic top rods 4012, the compression storage springs 4017 are elastically released, pushing the connecting sleeve 4015 to slide toward the side close to the centrifugal disk 407, so that the key slot 4016 slides to the active key block. 4006, during which the connecting sleeve 4015 also drives the pressure plate 502 to move together with the brake disc 503, so that the brake disc 503 and the positioning disc 501 release the braking effect. After the key slot 4016 slides to the periphery of the active key block 4006, the driving shaft 406 and the adjusting shaft 402 form a linkage effect through the connection of the key slot 4016, and the rotation of the driving shaft 406 is directly transmitted to the adjusting shaft 402, thereby driving the adjusting shaft 402 to rotate together with the adjusting bevel gear 403, and the rotation of the adjusting bevel gear 403 drives the meshing annular basin gear 404 to rotate together, and the annular basin gear 404 drives the annular transfer hanger 3 to rotate along the periphery of the annular guide block 2, thereby driving the four suspension cables 8 to rotate together with the four suspension hooks 801 to adjust the angle of the cargo;

[0050] When the connecting sleeve 4015 moves, it also drives the annular groove 609 provided therein to move together, and the annular groove 609 drives the thrust pin 608, the connecting strip 606 and the two guide blocks 605 to slide along the two guide rods 604, and further drives the two cam rods 607 to slide along the groove walls of the two spiral cam grooves 603, so that the two spiral cam grooves 603 are turned over to each other, and drives the two torsion shaft rods 601 together with the two cleaning brushes 6010 to turn over upward, so that when the positioning disc 501 is separated from the brake disc 503, the two cleaning brushes 6010 turn over upward and are just located between the positioning disc 501 and the brake disc 503, so that when the pressure plate 502 rotates with the connecting sleeve 4015, the bristles of the cleaning brush 6010 and the brake disc 503 can remove the dust adsorbed on the friction surface of the brake disc 503 under the friction effect of the brake disc 503, thereby ensuring that the brake disc 503 has a good braking effect;

[0051] When the angle adjustment of the cargo is completed, the AC motor 405 is turned off, the driving shaft 406 loses the driving force and stops rotating, the centrifugal force on the multiple counterweights 4008 and the centrifugal slide rod 4011 disappears, and the resilience of the multiple return springs 4014 is released, pushing the multiple telescopic top rods 4012 to slide in the opposite direction along the inner wall of the multiple telescopic tubes 4010, and pulling the centrifugal slide rod 4011 to slide inward along the inner wall of the centrifugal slide groove 408 through the tension rope 4013, and the multiple telescopic top rods 4012 slide in the opposite direction to push the connecting sleeve 4015 to the side away from the centrifugal disk 407, so that the connecting sleeve 4015 drives the multiple key slots 4016 away from the active key block 4006, and drives the brake disc 503 gradually approaching the positioning disc 501, until the brake disc 503 is combined with the positioning disc 501, and under the friction braking action between the positioning disc 501 and the brake disc 503, The connecting sleeve 4015 is braked on the periphery of the adjusting shaft 402, and the braking effect on the adjusting shaft 402 is achieved under the torque limiting effect of the keyway 4016 and the passive key block 4002, thereby avoiding unnecessary rotation of the adjusting shaft 402 during use and ensuring the stability of cargo lifting. When the brake disc 503 approaches the positioning disc 501, the annular groove 609 drives the thrust pin 608, the connecting strip 606, and the two guide blocks 605 to slide in the opposite direction along the two guide rods 604. The two guide blocks 605 drive the two cam rods 607 to slide in the opposite direction along the groove walls of the two spiral cam grooves 603, so that the two cylindrical cams 602 rotate in the opposite direction, driving the two torsion shafts 601 and the two cleaning brushes 6010 to flip downward and be pulled out from between the positioning disc 501 and the brake disc 503, thereby ensuring that the brake disc 503 will not be interfered with by the cleaning brush 6010 during the combination with the positioning disc 501.

[0052] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crane hanger with adjustable lifting angle, characterized in that: It comprises an I-beam (1), wherein the number of the I-beams (1) is two, and the two I-beams (1) are arranged parallel to each other, the peripheries of the two I-beams (1) are commonly connected to an annular guide block (2), the periphery of the annular guide block (2) is rotatably mounted with an annular transfer hanger (3), and a rotating component is provided at one end between the two I-beams (1); The rotating component comprises a power box (401) fixedly installed between two I-beams (1); an adjusting shaft (402) is rotatably installed on a side of the power box (401) away from the center of the annular guide block (2); an adjusting bevel gear (403) is fixedly installed on one end of the outer wall of the adjusting shaft (402); an annular basin gear (404) is fixedly installed on the top of the annular transfer hanger (3); a plurality of passive key blocks (4002) distributed at equal angles are fixedly installed on the outer wall of one end of the adjusting shaft (402) away from the adjusting bevel gear (403); an AC motor (405) is fixedly installed on the side of the power box (401) away from the adjusting shaft (402); A driving shaft (406) is fixedly mounted on the output shaft end of the machine (405), and the driving shaft (406) movably penetrates the power box (401) and extends to the inside of the power box (401). A centrifugal disc (407) is fixedly mounted on the outer wall of the driving shaft (406), and a plurality of centrifugal chutes (408) are provided on the outer wall of the centrifugal disc (407) at equal angles. A rope threading hole (409) is provided at one end of the plurality of centrifugal chutes (408) close to the inner wall of the centrifugal disc (407). The rope threading hole (409) movably penetrates the inside of the centrifugal disc (407) and extends to the periphery of a side surface of the centrifugal disc (407) close to the adjusting bevel gear (403). A plurality of telescopic tubes (4010) with equal angles are fixedly installed on one side of the adjusting bevel gear (407) close to the adjusting bevel gear (403), and the positions of the telescopic tubes (4010) correspond to the positions of the rope threading holes (409) one by one. A centrifugal slide bar (4011) is slidably provided inside the centrifugal slide groove (408), and a tension rope (4013) is movably connected inside the rope threading hole (409). A telescopic top rod (4012) is slidably provided inside the telescopic tube (4010), and a plurality of active key blocks (4006) with equal angles are fixedly provided on the outer wall of one end of the driving shaft (406) close to the adjusting shaft (402), and a centrifugal slide bar (4011) is slidably provided inside the centrifugal slide groove (408). A tension rope (4013) is movably connected inside the rope threading hole (409), and a telescopic top rod (4012) is slidably provided inside the telescopic tube (4010). A connecting sleeve (4015), wherein a plurality of key slots (4016) distributed at equal angles are provided on the inner wall of the connecting sleeve (4015), wherein the key slots (4016) are compatible with the specifications of the passive key block (4002) and the active key block (4006), and the key slots (4016) are slidably located on the periphery of the passive key block (4002), and a pressure storage spring (4017) is rotatably installed on a side of the connecting sleeve (4015) away from the centrifugal disk (407) through a universal connector, and the pressure storage spring (4017) is located on the periphery of the adjusting shaft (402), and one end of the pressure storage spring (4017) away from the connecting sleeve (4015) is fixedly connected to an inner wall of one side of the power box (401).

2. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: The adjusting bevel gear (403) is located at the top of the annular basin gear (404), and the adjusting bevel gear (403) and the annular basin gear (404) are meshed with each other.

3. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: The axes of the driving shaft (406) and the adjusting shaft (402) are on the same straight line, and a slight gap is provided between one end of the driving shaft (406) close to the adjusting shaft (402) and the end of the adjusting shaft (402).

4. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: The tension rope (4013) is fixedly installed between the centrifugal slide rod (4011) and the telescopic top rod (4012), and a return spring (4014) is fixedly installed on the side of the telescopic top rod (4012) close to the tension rope (4013). The return spring (4014) is located on the periphery of the tension rope (4013), and the end of the return spring (4014) away from the telescopic top rod (4012) is fixedly connected to the surface of the centrifugal disk (407).

5. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: A counterweight block (4008) is fixedly mounted on one end of the centrifugal sliding rod (4011) away from the tension rope (4013).

6. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: An adapter bracket (40121) is integrally formed at one end of the telescopic top rod (4012) away from the tension rope (4013), a rotating ball (40122) is rotatably mounted inside the adapter bracket (40121), and an outer surface of the rotating ball (40122 abuts against a side surface of the connecting sleeve (4015).

7. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: A positioning plate (501) is fixedly mounted on the inner wall of the power box (401) at a side away from the AC motor (405); a pressure plate (502) is fixedly mounted on the outer wall of the connecting sleeve (4015) at one end close to the positioning plate (501); a plurality of brake discs (503) distributed at equal angles are fixedly mounted on a side of the pressure plate (502) close to the positioning plate (501); and the brake disc (503) and the side close to the positioning plate (501) are in contact with each other.

8. The crane hanger with adjustable lifting angle according to claim 7, characterized in that: The power box (401) is provided with two symmetrically distributed cleaning components, the cleaning components comprising two torsion shafts (601) rotatably mounted inside the power box (401), cylindrical cams (602) being fixedly mounted on the outer walls of the two torsion shafts (601), spiral cam grooves (603) being opened on the outer walls of the two cylindrical cams (602), the spiral directions of the two spiral cam grooves (603) being opposite, and two parallel distributed guide rods (604) being fixedly mounted inside the power box (401), the two guide rods (604) being located at the tops of the two torsion shafts (601), and guide blocks (605) being slidably mounted on the outer walls of the two guide rods (604), the two guide blocks (60 5) are connected to the top of a connecting strip (606), and the bottoms of the two guide blocks (605) are fixedly installed with cam rods (607), and the two cam rods (607) are respectively slidably located inside the two spiral cam grooves (603), and a thrust pin (608) is fixedly installed in the middle of the top of the connecting strip (606), and an annular groove (609) is opened on the outer wall of the connecting sleeve (4015), and the thrust pin (608) is slidably located inside the annular groove (609), and cleaning brushes (6010) are fixedly installed on the outer walls of the two torsion shafts (601), and the two cleaning brushes (6010) are symmetrically distributed with each other, and the two cleaning brushes (6010) are located at the bottom of the positioning plate (501) and the brake plate (503).

9. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: Four suspension steel cables (8) distributed at equal angles are fixedly installed at the bottom of the annular transfer hanger (3), and suspension hooks (801) are fixedly installed at the bottom ends of the four suspension steel cables (8). Four lifting steel cables (9) distributed at equal angles are fixedly installed on the inner wall of the annular guide block (2), and the ends of the four lifting steel cables (9) away from the annular guide block (2) are commonly connected to a winch block (901).

10. The crane hanger with adjustable lifting angle according to claim 1, characterized in that: A balance block (7) is fixedly provided at one end of the top of the two I-beams (1) away from the power box (401).

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