A large pile-circling full-slewing crane

Abstract

The present invention provides a large-scale pile-wrapped full-slewing crane, comprising a crane, wherein the crane is provided with a rope winding mechanism, a drum hydraulic brake and a boom shelf, wherein the rope winding mechanism is sequentially wound on a slewing platform, a tripod, a boom portion and a hook, a boom shelf is provided on a deck shelf, and a drum hydraulic brake is fixedly installed on one side of a fixed frame of a winch; the drum hydraulic brake comprises a piston hydraulic cylinder, a brake member, a swing member, a manual adjustment member and a connecting member; the manual adjustment member comprises a slide bar and a handle; and the boom shelf comprises a frame, a roller, a roller connecting member and a side baffle. The present invention has the advantages of sufficient braking force and stable braking.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to a large-scale pile-circling full-slewing crane. Background Art

[0002] In a traditional crane winch, when the winch is in operation, the brake may not be fully opened due to insufficient pressure in the brake hydraulic oil circuit during the process of the hook rising or falling after the brake is released, resulting in the winch brake shaking. In this way, there is a risk of the winch brake braking again due to insufficient pressure in the brake hydraulic oil circuit. If a sudden brake occurs during the rising process of the hook, it may cause the cargo to become unhooked. If this happens, the cargo may be damaged at the least, and casualties may be caused at the worst, which will greatly increase the risk and cost of lifting. Summary of the invention

[0003] The present invention provides a large-scale pile-circling full-slewing crane with sufficient braking force and stable braking. By utilizing the structure of the present invention, the safety of crane braking is enhanced through a winch brake with adjustable braking force.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a large-scale pile-wrapped full-slewing crane, comprising a crane, the crane comprising a deck base installed on the deck, a deck shelf installed on the deck and located on one side of the deck base, a base, a slewing bearing, a slewing platform, a slewing drive device, a tripod and a boom part, the base is welded on the deck base, the top of the base is connected to the outer ring screw of the slewing bearing, the bottom of the slewing platform is connected to the inner ring screw of the slewing bearing, the tripod is fixedly installed on the top of the slewing platform, the boom part is hinged on the slewing platform, a winch is provided on the slewing platform and the boom part, the winch comprises a drum, an encoder, a motor and a fixing frame for fixing the drum, the encoder is arranged on one side of the output end of the motor, and it is characterized in that: the crane is provided with a rope winding mechanism, a drum hydraulic brake and a boom shelf, the rope winding mechanism is sequentially passed through the slewing platform, the tripod, the boom part and the hook, the deck shelf is provided with a boom shelf, and the drum hydraulic brake is fixedly installed on one side of the winch fixing frame;

[0005] The roller hydraulic brake comprises a piston hydraulic cylinder, a brake member, a swing member, a manual adjustment member and a connecting member, the piston hydraulic cylinder is fixedly connected to a fixed frame, the connecting member is provided with a first hinge hole, a second hinge hole is provided on one side of the first hinge hole, a movable rod is hinged on the second hinge hole, one end of the swing member is hinged on the second hinge hole of the connecting member together with the movable rod, the other end of the swing member is hinged on a fixedly installed swing ear, the swing ear is fixedly arranged, the end of the connecting member away from the first hinge hole is hinged to the manual adjustment member, the brake member comprises a first arc-shaped brake pad and a second arc-shaped brake pad, the first arc-shaped brake pad and the second arc-shaped brake pad are arranged on the roller of the drum, one end of the first arc-shaped brake pad and the second arc-shaped brake pad are hinged on the same hole position on one side of the fixed frame, the other end of the first arc-shaped brake pad is hinged on the first hinge hole of the connecting member, and the other end of the second arc-shaped brake pad is hinged on the end of the movable rod away from the connecting member;

[0006] A hydraulic oil pipe is provided on one side of the cylinder body of the piston hydraulic cylinder, a spring frame is provided on the piston hydraulic cylinder, the piston rod of the piston hydraulic cylinder extends into the spring frame, a spring is provided in the spring frame, a limit block is provided at the end of the spring frame away from the piston hydraulic cylinder, the limit block is fixed to the spring frame through a nut, a movable block is provided at the end of the spring frame close to the piston hydraulic cylinder, a mounting hole is provided in the center of the movable block, a countersunk hole larger than the mounting hole is provided on the end of the movable block away from the piston hydraulic cylinder, and a retaining ring is provided on the outer wall of the movable block; the piston rod of the piston hydraulic cylinder extends into the mounting hole and realizes an interference fit. At the same time, it is fixed by radial screws; it also includes a driving rod, the driving rod includes a rod body, a connecting part connected to one end of the rod body and an adjusting part connected to the other end of the rod body, the diameter of the connecting part is larger than the diameter of the rod body, the connecting part is located in the countersunk hole, the connecting part is pressed by a pressure ring, and the pressure ring is fixed to the movable block by bolts; the spring is sleeved on the rod body between the resisting ring and the limit block; a piston rod hinge is provided on the driving rod, the driving rod is hinged to the fixing frame through the piston rod hinge, and an adjusting slot is provided on the adjusting part; the manual adjusting part is connected to the adjusting part and extends into the adjusting slot;

[0007] The manual adjustment member includes a slide bar and a handle, the slide bar is fixedly connected to the handle, the slide bar is hinged on the connecting member, a thread is provided at the hinge of the slide bar with the connecting member, a nut is provided on one side of the thread, and the slide bar is connected to the adjustment slide groove at one end away from the handle;

[0008] The boom shelf frame includes a frame, a roller, a roller connector and a side baffle, wherein the roller is rotatably connected to the roller connector through a pin shaft, the roller connector is fixedly mounted on the top surface of the frame, and the side baffle is arranged on both sides of the top surface of the frame;

[0009] The rope winding mechanism includes a main winch, a fixed pulley block, a movable pulley block and a guide wheel block. The main winch is arranged on a rotating platform, the guide wheel blocks are respectively arranged on a tripod and an arm part, the fixed pulley block is arranged at one end of the arm part close to the hook, the movable pulley block is hinged to the hook, and the main winch, the fixed pulley block, the movable pulley block and the guide wheel block are connected in sequence by steel wire ropes.

[0010] With the above arrangement, in the non-working state, under the action of the spring, the first arc-shaped brake pad and the second arc-shaped brake pad are in a normally engaged state with the drum, that is, a braking state. When the drum hydraulic brake needs to open the brake, the piston hydraulic cylinder is driven so that the hydraulic cylinder overcomes the elastic force of the spring and pushes the driving rod to move. After the driving rod moves, it pushes the sliding rod through the adjusting groove, so that the connecting part drives the movable rod to move, and the movable rod and the connecting part move together toward the end away from the brake part, thereby driving the first arc-shaped brake pad and the second arc-shaped brake pad to open, thereby opening the brake; when the hydraulic oil circuit pressure of the winch brake is insufficient, the nut on the manual adjusting part can be rotated to adjust the stroke between the sliding rod of the manual adjusting part and the adjusting groove, so that the stroke of the piston rod is increased, so that the pressure of the piston rod to open the brake part is increased, thereby solving the problem that the hydraulic oil circuit pressure of the winch brake of the traditional crane is insufficient, resulting in insufficient brake opening and winch brake shaking.

[0011] In the present invention, by arranging the rollers, when the boom portion is placed on the shelf, the rollers provide rolling friction, thereby reducing the friction between the boom and the shelf when the boom is shaken.

[0012] Furthermore, the rope winding mechanism is also provided with a torque meter, which is arranged on one side of the fixed pulley block and is used to measure the weight of the hook load. In this way, the crane driver can directly observe the load weight.

[0013] Furthermore, the piston hydraulic cylinder is fixedly connected to a fixing frame by bolts on a side away from the manual adjustment member.

[0014] Furthermore, the handle is a "C"-shaped structure, which is convenient for manual gripping and adjustment.

[0015] Furthermore, the adjusting slide groove is a cylinder with an opening at one end and a groove recessed toward the other end. The adjusting slide groove is fixedly connected to the piston rod of the piston hydraulic cylinder at the end away from the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the crane described in the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the drum hydraulic brake in the present invention.

[0018] Figure 3It is a top view structural schematic diagram of the drum hydraulic brake and motor in the present invention.

[0019] Figure 4 It is a rear view structural schematic diagram of the drum hydraulic brake in the present invention.

[0020] Figure 5 It is a structural schematic diagram of the rope winding mechanism in the present invention.

[0021] Figure 6 It is a structural schematic diagram of the boom shelf in the present invention.

[0022] Figure 7 for Figure 4 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-Figure 6 A large-scale pile-circling full-slewing crane comprises a crane, which comprises a deck base 1 installed on a deck, a deck shelf 2 installed on the deck and located on one side of the deck base 1, a base, a slewing bearing, a slewing platform 3, a slewing drive device, a tripod 4 and a boom part 5. The base is welded on the deck base 1, the top of the base is connected to the outer ring screw of the slewing bearing, the bottom of the slewing platform is connected to the inner ring screw of the slewing bearing, the tripod is fixedly installed on the top of the slewing platform, the boom part is hinged on the slewing platform, the slewing platform and the boom are connected. A winch is provided on the part, and the winch includes a drum 700, an encoder 701, a motor 702 and a fixing frame 703 for fixing the drum. The encoder is arranged on one side of the output end of the motor for counting the number of rotations. The crane is provided with a rope winding mechanism 6, a drum hydraulic brake 8 and a boom shelf 21. The rope winding mechanism is sequentially wound around the revolving platform 3, the tripod 4, and the boom part 5 connected to the hook 65. The deck shelf 2 is provided with a boom shelf 21, and the drum hydraulic brake 8 is fixedly installed on one side of the winch fixing frame 70 by bolts.

[0025] The drum hydraulic brake 8 comprises a piston cylinder 81, a brake member 82, a swing member 83, a manual adjustment member 84 and a connecting member 85. One end of the piston cylinder 81 is hinged to the brake member 82, and the other end is fixedly connected to the fixing frame 703. The connecting member 85 is provided with a first hinge hole 851, and one side of the first hinge hole 851 is provided with a second hinge hole 852. The second hinge hole 852 is hinged with a movable rod 86. One end of the swing member 83 is hinged to the second hinge hole 852 of the connecting member together with the movable rod 86. The other end of the swing member 83 is hinged with a fixedly installed swing ear 831. The swing ear 831 is fixedly arranged. One end of the connecting member 85 away from the first hinge hole 851 is hinged to the manual adjustment member 84, and the brake member 82 includes a first arc-shaped brake pad 821 and a second arc-shaped brake pad 822. The first arc-shaped brake pad 821 and the second arc-shaped brake pad 822 are arranged on the roller 7001 of the drum 700, and one end of the first arc-shaped brake pad 821 and the second arc-shaped brake pad 822 are hinged to the same hole position on one side of the fixed frame 703, and the other end of the first arc-shaped brake pad 821 is hinged to the first hinge hole of the connecting member 85, and the other end of the second arc-shaped brake pad 822 is hinged to one end of the movable rod 86 away from the connecting member 85.

[0026] A hydraulic oil pipe is provided on one side of the cylinder body of the piston hydraulic cylinder 81, a spring frame 81a is provided on the piston hydraulic cylinder 81, a piston rod of the piston hydraulic cylinder 81 extends into the spring frame 81a, a spring 811 is provided in the spring frame 81a, and a limit block 81b is provided at one end of the spring frame 81a away from the piston hydraulic cylinder 811, and the limit block 81b is fixed to the spring frame 81a by a nut. Figure 7 As shown, a movable block 9 is provided at one end of the spring frame 81a close to the piston hydraulic cylinder 81, a mounting hole 91 is provided in the center of the movable block 9, a countersunk hole 92 larger than the mounting hole 91 is provided at the end of the movable block 9 away from the piston hydraulic cylinder 81, and a retaining ring 93 is provided on the outer wall of the movable block 9; the piston rod of the piston hydraulic cylinder 81 extends into the mounting hole 91 and realizes an interference fit, and is fixed by radial screws; it also includes a driving rod 94, the driving rod 94 includes a rod body 941, a connecting part 942 connected to one end of the rod body 941 and an adjusting part 942 connected to the other end of the rod body, the diameter of the connecting part is larger than the diameter of the rod body, the connecting part is located in the countersunk hole, and the connecting part is pressed by a pressing ring 100, and the pressing ring 100 is fixed to the movable block by bolts; the spring is sleeved on the rod body between the retaining ring and the limit block. The driving rod is provided with a piston rod hinge 812 , and the driving rod is hinged to the fixing frame 703 through the piston rod hinge 812 . An adjusting slot 813 is provided on the adjusting portion.

[0027] The manual adjustment member 84 includes a slide rod 841 and a handle 842. The slide rod 841 is fixedly connected to the handle 842. The slide rod 841 is hinged on the connecting member 85. The slide rod 841 is provided with a thread at the hinge with the connecting member 85. The slide rod 841 is provided with a nut 843 on one side of the thread. The slide rod 841 is threadedly connected to the adjustment slide groove 813 at the end away from the handle 842; the handle 842 is a "C"-shaped structure; the adjustment slide groove 813 is a cylinder with an opening at one end and a groove recessed toward the other end. The adjustment slide groove 813 is fixedly connected to the piston rod of the piston hydraulic cylinder 81 at the end away from the opening.

[0028] The boom shelf 21 includes a frame 211, a roller 212, a roller connector 213 and a side baffle 214. The roller 212 is rotatably connected to the roller connector 213 via a pin shaft. The roller connector 213 is fixedly mounted on the top surface of the frame 211. The side baffles 214 are arranged on both sides of the top surface of the frame 211.

[0029] The rope winding mechanism 6 includes a main winch 61, a fixed pulley group 62, a movable pulley group 63 and a guide wheel group 64. The main winch 61 is arranged on the rotating platform 3. The guide wheel group 64 is respectively arranged on the tripod 4 and the boom part 5. The fixed pulley group 62 is arranged at one end of the boom part 5 close to the hook 65. The movable pulley group 63 is hinged to the hook 65. The main winch 61, the fixed pulley group 62, the movable pulley group 63 and the guide wheel group 64 are connected in sequence by a wire rope 66.

[0030] The piston hydraulic cylinder 81 is fixedly connected to the fixing frame by bolts at the side away from the manual adjustment member.

[0031] The working principle of this structure is as follows: in the non-working state, under the action of the spring, the first arc-shaped brake pad and the second arc-shaped brake pad are in a constant engagement state with the drum, that is, the braking state. When the drum hydraulic brake needs to open the brake, the piston hydraulic cylinder is driven so that the hydraulic cylinder overcomes the elastic force of the spring and pushes the driving rod to move. After the driving rod moves, it pushes the sliding rod through the adjusting groove, so that the connecting part drives the movable rod to move. The movable rod and the connecting part move together toward the end away from the brake part, thereby driving the first arc-shaped brake pad and the second arc-shaped brake pad to open, thereby opening the brake; when the hydraulic oil circuit pressure of the winch brake is insufficient, the nut on the manual adjusting part can be rotated to adjust the stroke between the sliding rod of the manual adjusting part and the adjusting groove, so that the stroke of the piston rod is increased, so that the pressure of the piston rod to open the brake part is increased, thereby solving the problem that the hydraulic oil circuit pressure of the winch brake of the traditional crane is insufficient, resulting in insufficient brake opening and winch brake shaking.

[0032] In the present invention, by arranging the rollers, when the boom portion is placed on the shelf, the rollers provide rolling friction, thereby reducing the friction between the boom and the shelf when the boom is shaken.

Claims

1. A large-scale pile-circling full-slewing crane, comprising a crane, the crane comprising a deck base installed on a deck, a deck resting seat installed on the deck and located on one side of the deck base, a base, a slewing bearing, a slewing platform, a slewing drive device, a tripod and a boom portion, the base being welded on the deck base, the top of the base being connected to the outer ring screw of the slewing bearing, the bottom of the slewing platform being connected to the inner ring screw of the slewing bearing, the tripod being fixedly mounted on the top of the slewing platform, the boom portion being hinged on the slewing platform, a winch being provided on the slewing platform and the boom portion, the winch comprising a drum, an encoder, a motor and a fixing frame for fixing the drum, the encoder being arranged on one side of the output end of the motor, and characterized in that: The crane is provided with a rope winding mechanism, a drum hydraulic brake and a boom shelf. The rope winding mechanism is sequentially wound on the slewing platform, the tripod, the boom part and the hook. The boom shelf is provided on the deck shelf. The drum hydraulic brake is fixedly installed on one side of the winch fixed frame. The roller hydraulic brake comprises a piston hydraulic cylinder, a brake member, a swing member, a manual adjustment member and a connecting member, the piston hydraulic cylinder is fixedly connected to a fixed frame, the connecting member is provided with a first hinge hole, a second hinge hole is provided on one side of the first hinge hole, a movable rod is hinged on the second hinge hole, one end of the swing member is hinged on the second hinge hole of the connecting member together with the movable rod, the other end of the swing member is hinged on a fixedly installed swing ear, the swing ear is fixedly arranged, the end of the connecting member away from the first hinge hole is hinged to the manual adjustment member, the brake member comprises a first arc-shaped brake pad and a second arc-shaped brake pad, the first arc-shaped brake pad and the second arc-shaped brake pad are arranged on the roller of the drum, one end of the first arc-shaped brake pad and the second arc-shaped brake pad are hinged on the same hole position on one side of the fixed frame, the other end of the first arc-shaped brake pad is hinged on the first hinge hole of the connecting member, and the other end of the second arc-shaped brake pad is hinged on the end of the movable rod away from the connecting member; A hydraulic oil pipe is provided on one side of the cylinder body of the piston hydraulic cylinder, a spring frame is provided on the piston hydraulic cylinder, the piston rod of the piston hydraulic cylinder extends into the spring frame, a spring is provided in the spring frame, a limit block is provided at the end of the spring frame away from the piston hydraulic cylinder, the limit block is fixed to the spring frame through a nut, a movable block is provided at the end of the spring frame close to the piston hydraulic cylinder, a mounting hole is provided in the center of the movable block, a countersunk hole larger than the mounting hole is provided on the end of the movable block away from the piston hydraulic cylinder, and a retaining ring is provided on the outer wall of the movable block; the piston rod of the piston hydraulic cylinder extends into the mounting hole and realizes an interference fit. At the same time, it is fixed by radial screws; it also includes a driving rod, the driving rod includes a rod body, a connecting part connected to one end of the rod body and an adjusting part connected to the other end of the rod body, the diameter of the connecting part is larger than the diameter of the rod body, the connecting part is located in the countersunk hole, the connecting part is pressed by a pressure ring, and the pressure ring is fixed to the movable block by bolts; the spring is sleeved on the rod body between the resisting ring and the limit block; a piston rod hinge is provided on the driving rod, the driving rod is hinged to the fixing frame through the piston rod hinge, and an adjusting slot is provided on the adjusting part; the manual adjusting part is connected to the adjusting part and extends into the adjusting slot; The manual adjustment member includes a slide bar and a handle, the slide bar is fixedly connected to the handle, the slide bar is hinged on the connecting member, a thread is provided at the hinge of the slide bar with the connecting member, a nut is provided on one side of the thread, and the slide bar is connected to the adjustment slide groove at one end away from the handle; The boom shelf frame includes a frame, a roller, a roller connector and a side baffle, wherein the roller is rotatably connected to the roller connector through a pin shaft, the roller connector is fixedly mounted on the top surface of the frame, and the side baffle is arranged on both sides of the top surface of the frame; The rope winding mechanism includes a main winch, a fixed pulley block, a movable pulley block and a guide wheel block. The main winch is arranged on a slewing platform, the guide wheel blocks are arranged on a tripod and a boom part respectively, the fixed pulley block is arranged on one end of the boom part close to the hook, the movable pulley block is hinged to the hook, and the main winch, the fixed pulley block, the movable pulley block and the guide wheel block are connected in sequence by steel wire ropes; The rope winding mechanism is also provided with a torque meter, which is arranged on one side of the fixed pulley block and is used to measure the weight of the hook load; The regulating chute is a cylinder with an opening at one end and a groove recessed toward the other end. The regulating chute is fixedly connected to the piston rod of the piston hydraulic cylinder at the end away from the opening.

2. A large pile-circling full-slewing crane according to claim 1, characterized in that: The piston hydraulic cylinder is fixedly connected to the fixing frame by bolts on the side away from the manual adjusting member.

3. A large pile-circling full-slewing crane according to claim 1, characterized in that: The handle is a "C" shaped structure.

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