Anti-sway gantry crane

By designing anti-swinging technical means in gantry lifting equipment, including anti-swing energy-sucking rod, energy-sucking arc rod and brake unit, the problem of poor overload protection in the existing technology is solved, and cargo swaying and overloading are achieved Effective protection improves the safety of the equipment.

CN119038415BActive Publication Date: 2025-02-25HENAN TUOFENG MASCH CO LTD

Patent Information

Application Number
CN202411551598.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-02-25
Estimated Expiration
2044-11-01

AI Technical Summary

Technical Problem

The existing electric hoist grab gantry cranes have poor overload protection, which cannot effectively prevent overload problems caused by overweight or cargo shaking, and poses a major safety hazard.

Method used

An anti-swing gantry lifting equipment was designed, using transfer beam gantry, displacement sliding group, lifting hoist, rope, grab assembly and swing energy-absorbing assembly and other components. Through anti-swing energy-absorbing rod and energy-absorbing Technical means such as arc rods and brake units can achieve effective protection against cargo shaking and overloading.

Benefits of technology

The equipment can quickly cut off power when grabbing goods, avoid overloading of motors and parts; quickly eliminate cargo shaking; limit the equipment when overweight to ensure safety of operation; and trigger the brake unit when the goods shaking violently to avoid Transfer to improve the safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of lifting equipment, and specifically discloses an anti-sway gantry lifting equipment to solve the problem of poor overload protection in the prior art; it includes a transfer beam gantry, a movable slide groove is provided on the sliding surface at the upper end of the transfer beam gantry, a displacement slide group is provided in the movable slide groove, a lifting hoist for lifting is provided on the displacement slide group, a lifting rope is wound around the output end of the lifting hoist, and a grab bucket assembly for grabbing goods is provided at the lower end of the lifting rope; the grab bucket assembly includes an anti-sway energy absorption rod connected to the lower end of the lifting rope. The present invention is designed in response to existing needs, and can quickly cut off power when there is an obstruction in grabbing goods, avoiding the problem of overload of motors and parts, and can also quickly eliminate the problem of shaking of goods. In addition, the equipment can be limited when overweight to ensure the safety of its operation.
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Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, in particular to anti-swaying gantry lifting equipment. Background Art

[0002] The electric hoist grab gantry crane is a lifting equipment used with a four-rope grab bucket and a gantry crane. It is mostly used for loading and unloading bulk cargo. The lifting rope and the grab opening and closing rope of the four-rope grab bucket are controlled by double electric hoists respectively, and they cooperate with each other to perform grabbing and lifting operations. The existing patent announcement number CN217947382U discloses an electric hoist grab gantry crane, in which an anti-overload mechanism is set, and the opening and closing steel cable led by the opening and closing hoist bypasses the anti-overload mechanism. When the bucket petal is completely closed or the bucket petal and the cargo are pressed against each other and cannot continue to move toward the center, the opening and closing hoist is braked. When the opening and closing hoist is not completely braked, the anti-overload mechanism is pulled and deflected, thereby avoiding the instantaneous increase of the load on the opening and closing steel cable or the opening and closing hoist, thereby protecting the opening and closing steel cable and the opening and closing hoist. In this way, it is possible to avoid the opening and closing steel cable being torn by tension or the opening and closing hoist being damaged by overload.

[0003] However, the above-mentioned overload protection structure can only overload the resistance during grasping. If the weight is too heavy, overload protection cannot be performed. In addition, when transferring goods, if excessive shaking occurs, the centrifugal force generated by the shaking will also cause overload problems, posing a great safety hazard.

[0004] Based on this, anti-sway gantry crane equipment is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-swaying gantry crane, which solves the problem of poor overload protection in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The anti-swaying gantry crane comprises a transfer beam gantry, a moving slide groove is provided on the sliding surface of the upper end of the transfer beam gantry, a displacement slide group is provided in the moving slide groove, a lifting hoist for lifting is provided on the displacement slide group, a lifting rope is wound around the output end of the lifting hoist, and a grab bucket assembly for grabbing goods is provided at the lower end of the lifting rope;

[0008] The grab bucket assembly includes an anti-swing energy-absorbing rod connected to the lower end of the lifting rope, a lifting seat is provided at the lower end of the anti-swing energy-absorbing rod, and the lower end of the lifting seat is connected to the grab seat plate through the lifting rod. Two grab buckets are provided under the grab seat plate, and a grab connecting rod is provided on the outside of each grab bucket. The upper end of the grab connecting rod is rotatably connected to the outside of the grab seat plate. The two grab buckets are connected to an anti-overload driving member for driving them to open or close. A swing energy-absorbing assembly is also provided at the lower end of the displacement slide group to prevent the grab bucket assembly from shaking.

[0009] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0010] In the optional scheme: the displacement slide group includes a second slide, the side of the second slide is provided with a sliding side groove matching the transfer beam gantry, the outer side of the second slide is provided with a plurality of walking wheels in contact with the upper end surface of the transfer beam gantry, the walking wheels are connected to a motor group for driving rotation, the second slide is provided with a lifting through hole matching the lifting rope, a first slide is provided at the upper end of the second slide, a plurality of load-bearing guide rods are provided at the upper end of the second slide, the load-bearing guide rods are slidably matched with the guide holes at the upper end of the first slide, the first slide and the second slide are connected by a load-bearing spring, and the first slide is provided with a first through hole matching the lifting rope.

[0011] In the optional scheme: the swing energy absorption assembly includes a plurality of energy absorption sliders arranged at the lower end of the displacement slide group, the energy absorption slider is slidably arranged with the bottom of the second slide seat, an energy absorption arc rod is provided at the lower end of the energy absorption slider, a plurality of arc-shaped pressing sections are provided at the lower end of the energy absorption arc rod, and an array of multiple energy absorption arc rods constitutes an energy absorption gap matching the diameter of the anti-swing energy absorption rod, a transverse slide bar is provided at the outer end of the energy absorption slider, a transverse fixing plate slidably arranged with the transverse slide bar is provided at the lower end of the displacement slide group, an energy absorber is provided between the transverse fixing plate and the energy absorption slider, the energy absorber is a damping spring, an extrusion wheel is provided at the outer end of the transverse slide bar, and a brake unit for limiting the movement of the displacement slide group is provided on the displacement slide group outside the extrusion wheel.

[0012] In an optional solution: the energy absorber is a damping spring.

[0013] In an optional solution: the brake unit includes a friction ring plate slidably arranged on the outside of the displacement slide group, the friction ring plate is provided with a plurality of guide holes, each guide hole is matched with a vertical guide rod, the lower end of the vertical guide rod is connected to the displacement slide group through a positioning connecting plate, the positioning connecting plate and the friction ring plate are connected by a vertical spring, a plurality of side rods are horizontally arranged on the outside of the friction ring plate, and the outer ends of the side rods are provided with side inclined plates matching the extrusion wheels.

[0014] In an optional solution: a steering driven gear is fixedly provided at the upper end of the lifting seat, the steering driven gear is fixedly connected to the anti-sway energy absorption rod, the lower end of the steering driven gear is rotatably connected to the lifting seat, the outer side of the steering driven gear is meshed with the steering drive gear, the steering drive gear is arranged at the output end of the steering motor, and the steering motor is fixed on the lifting seat.

[0015] In the optional scheme: the anti-overload drive component includes a rotating traction shaft, which is rotatably connected to two grab buckets, and the middle position of the rotating traction shaft is connected to a wire rope, the upper end of the wire rope is wound on a winch roller group, and the two ends of the winch roller group are rotatably connected to the vertical plate on the upper end of the grab seat plate, and the grab seat plate is provided with a second through hole for facilitating the wire rope to pass through, the end of the winch roller in the winch roller group is connected to a driven turbine, and the lower end of the driven turbine is meshed with the driving worm, and the two ends of the driving worm are rotatably connected to the bearing seat plate on the upper end of the grab seat plate, and the end of the driving worm is connected to the output end of the driving motor through an overload clutch unit.

[0016] In an optional scheme: the overload clutch unit includes a first friction disk fixedly arranged at the output end of the driving motor, a second friction disk is tightly attached to the friction surface of the first friction disk, the end of the second friction disk is connected to a transmission sleeve, a transmission shaft is slidably provided at the end of the transmission sleeve, the end of the transmission shaft away from the transmission sleeve is connected to a reset plate at the end of the driving worm, the second friction disk and the reset plate are connected by an extrusion spring, matching bevel blocks are provided at the contact positions of the first friction disk and the second friction disk, a rotation limiting groove is provided on the inner wall of the transmission sleeve, and a rotation limiting protrusion is provided on the surface of the transmission shaft.

[0017] In an optional solution: a pulley matching the displacement slide group is provided at the lower end of the energy absorbing slide block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention is designed according to existing needs. It can quickly cut off the power when there is an obstruction in grabbing the goods, avoid the problem of overload of the motor and parts, and quickly eliminate the problem of shaking of the goods. In addition, it can limit the equipment when it is overweight to ensure the safety of its operation.

[0020] 2. When the shaking of the goods exceeds a set value, that is, when the energy absorption of the equipment cannot eliminate the shaking problem, the present invention can trigger the brake unit, thereby avoiding the transfer when the goods shake violently, and further improving the safety of the equipment.

[0021] 3. When grabbing goods, the present invention quickly adjusts the grabbing direction, thereby improving the flexibility of grabbing. After all, there is an overload problem when grabbing at a single angle, and the grabbing angle needs to be quickly switched. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0024] Figure 3 It is a structural schematic diagram of one side of the grab bucket assembly of the present invention.

[0025] Figure 4 It is a schematic structural diagram of the other side of the grab bucket assembly of the present invention.

[0026] Figure 5 It is a schematic diagram of the top structure of the grabbing seat plate of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the upper end of the displacement sliding group of the present invention.

[0028] Figure 7 It is a schematic diagram of the lower structure of the displacement slide group of the present invention.

[0029] Figure 8 It is a schematic diagram of the friction ring plate structure of the present invention.

[0030] Fig. 9 For the present invention Figure 5 A partial enlarged view of the structure.

[0031] Fig.10 It is a schematic diagram of the structure of the swing energy absorption component of the present invention.

[0032] Fig.11 It is a schematic diagram of the structure of the first friction disc and the second friction disc of the present invention.

[0033] Fig.12 It is a schematic diagram of the friction surface structure of the first friction disk and the second friction disk of the present invention.

[0034] Reference numerals: transfer beam gantry 100, displacement slide group 200, hoisting hoist 201, first through hole 202, load-bearing guide rod 203, load-bearing spring 204, second slide 205, running wheel 206, overload brake plate 207, brake connecting rod 208, sliding side groove 209, first slide 210;

[0035] Swinging energy absorption assembly 300, friction ring plate 301, side rod 302, lifting rope 303, energy absorber 304, side inclined plate 305, transverse fixing plate 306, transverse sliding rod 307, extrusion wheel 308, vertical guide rod 309, vertical spring 310, positioning connecting plate 311, energy absorption sliding block 312, energy absorption arc rod 313, lifting through hole 314;

[0036] Grab bucket assembly 400, anti-sway energy absorption rod 401, steering driven gear 402, steering drive gear 403, lifting seat 404, hoisting roller group 405, grab seat plate 406, grab connecting rod 407, grab bucket 408, hanging rod 409, rotating traction shaft 410, steering motor 411, driving worm 412, driven turbine 413, hoisting roller 414, second perforation 415, overload clutch unit 416, driving motor 417, first friction disc 418, second friction disc 419, extrusion spring 420, bearing seat plate 423, transmission shaft 422, transmission sleeve 421. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figure 1-Figure 12 As shown, the embodiment of the present invention provides an anti-sway gantry lifting device, including a transfer beam gantry 100, a movable slide groove is provided on the upper sliding surface of the transfer beam gantry 100, a displacement slide group 200 is provided in the movable slide groove, a lifting hoist 201 for lifting is provided on the displacement slide group 200, a lifting rope 303 is wound around the output end of the lifting hoist 201, and a grab bucket assembly 400 for grabbing goods is provided at the lower end of the lifting rope 303, so that the displacement slide group 200 can be used to move on the top of the transfer beam gantry 100, and the displacement slide group 200 drives the grab bucket assembly 400 to move along the transfer beam gantry 100, thereby completing the transfer of goods;

[0039] The grab bucket assembly 400 includes an anti-swing energy absorbing rod 401 connected to the lower end of the lifting rope 303, a lifting seat 404 is provided at the lower end of the anti-swing energy absorbing rod 401, and the lower end of the lifting seat 404 is connected to the grab seat plate 406 through a lifting rod 409. Two grab buckets 408 are provided below the grab seat plate 406, and a grab connecting rod 407 is provided on the outer side of each grab bucket 408. The upper end of the grab connecting rod 407 is rotatably connected to the outer side of the grab seat plate 406. The two grab buckets 408 are connected to an anti-overload driving member for driving them to open or close, and the grab buckets 408 are driven to rotate by the anti-overload driving member, thereby avoiding the problem of excessive force damage to parts;

[0040] The lower end of the displacement slide assembly 200 is also provided with a swing energy absorption assembly 300 to prevent the grab assembly 400 from shaking. When shaking occurs, the swing energy absorption assembly 300 can quickly absorb the energy generated by the shaking, thereby reducing the danger generated during the walking process;

[0041] The displacement slide group 200 includes a second slide 205, a side of the second slide 205 is provided with a sliding side groove 209 matching the transfer beam gantry 100, a plurality of walking wheels 206 in contact with the upper end surface of the transfer beam gantry 100 are provided on the outer side of the second slide 205, the walking wheels 206 are connected to a motor group for driving the rotation, a lifting through hole 314 matching the lifting rope 303 is provided on the second slide 205, a first slide 210 is provided on the upper end of the second slide 205, and a plurality of A load-bearing guide rod 203, the load-bearing guide rod 203 is slidably matched with the guide hole at the upper end of the first slide 210, the first slide 210 and the second slide 205 are connected by a load-bearing spring 204, the first slide 210 is provided with a first through hole 202 matching the suspension rope 303, when the suspension rope 303 is pulled overweight, the first slide 210 will slide downward along the load-bearing guide rod 203, at this time, the brake link 208 will drive the overload brake plate 207 to move downward, so as to limit the overload and avoid overload of the equipment;

[0042] The swing energy absorption assembly 300 includes a plurality of energy absorption sliders 312 arranged at the lower end of the displacement slide group 200, the energy absorption sliders 312 are slidably arranged with the bottom of the second slide seat 205, an energy absorption arc rod 313 is arranged at the lower end of the energy absorption slider 312, a plurality of arc-shaped pressing sections are arranged at the lower end of the energy absorption arc rod 313, and an array of a plurality of energy absorption arc rods 313 forms an energy absorption gap matching the diameter of the anti-swing energy absorption rod 401, a transverse slide bar 307 is arranged at the outer end of the energy absorption slider 312, and a transverse slide bar 307 is arranged at the lower end of the displacement slide group 200. The horizontal fixing plate 306 is provided with an energy absorber 304 between the horizontal fixing plate 306 and the energy absorbing slider 312. The energy absorber 304 is a damping spring. An extrusion wheel 308 is provided at the outer end of the horizontal sliding bar 307. A brake unit for limiting the movement of the displacement slider 200 is provided on the displacement slider 200 outside the extrusion wheel 308. In this way, when the grab bucket assembly 400 shakes excessively, the extrusion wheel 308 will trigger the brake unit, thereby preventing the displacement slider 200 from being carried when the grab bucket assembly 400 shakes excessively, thereby improving the safety of carrying.

[0043] When the grab bucket assembly 400 shakes, the load-bearing guide rod 203 is reeled in by the hoisting hoist 201, so that the anti-swing energy-absorbing rod 401 moves upward to the position of the swing energy-absorbing assembly 300. At this time, the anti-swing energy-absorbing rod 401 will move to the energy-absorbing gap formed by the multiple energy-absorbing arc rods 313. At this time, when the grab bucket assembly 400 shakes, the anti-swing energy-absorbing rod 401 will generate a driving force on the energy-absorbing arc rod 313 when it swings, so that the energy-absorbing arc rod 313 slides outward along the transverse sliding rod 307. During the sliding process, the energy absorber 304 will absorb the energy of the shaking. If the energy absorber 304 shakes too violently at this time, the extrusion wheel 308 at the outer end of the energy-absorbing arc rod 313 will trigger the brake unit, thereby preventing the displacement slide group 200 from moving, thereby improving the safety of walking.

[0044] The brake unit includes a friction ring plate 301 slidably arranged on the outside of the displacement slide group 200, the friction ring plate 301 is provided with a plurality of guide holes, each guide hole is matched with a vertical guide rod 309, the lower end of the vertical guide rod 309 is connected to the displacement slide group 200 through a positioning connecting plate 311, the positioning connecting plate 311 and the friction ring plate 301 are connected through a vertical spring 310, a plurality of side rods 302 are horizontally arranged on the outside of the friction ring plate 301, and the outer end of the side rod 302 is provided with a side inclined plate 305 matching the extrusion wheel 308, when the extrusion wheel 308 moves outward, the extrusion wheel 308 will generate a driving force on the side inclined plate 305, so that the friction ring plate 301 can move upward, and the friction surface at the upper end of the friction ring plate 301 will contact the bottom of the transfer beam gantry 100, thereby completing the braking, and the braking action will be triggered only when the grab assembly 400 shakes excessively and the energy absorption here is ineffective;

[0045] A steering driven gear 402 is fixedly provided at the upper end of the hoisting seat 404, and the steering driven gear 402 is fixedly connected to the anti-swing energy absorption rod 401, and the lower end of the steering driven gear 402 is rotatably connected to the hoisting seat 404, and the outer side of the steering driven gear 402 is meshed with the steering drive gear 403, and the steering drive gear 403 is arranged at the output end of the steering motor 411, and the steering motor 411 is fixed on the hoisting seat 404, and the steering drive gear 403 is driven to rotate by the steering motor 411, and the steering drive gear 403 is matched with the steering driven gear 402, thereby driving the hoisting seat 404 to rotate around the steering driven gear 402, so that the grabbing direction of the grab assembly 400 can be adjusted, thereby improving the flexibility of grabbing goods;

[0046] The anti-overload drive member includes a rotating traction shaft 410, which is rotatably connected to two grab buckets 408. The middle position of the rotating traction shaft 410 is connected to a wire rope. The upper end of the wire rope is wound on a hoisting roller group 405. The two ends of the hoisting roller group 405 are rotatably connected to the vertical plate at the upper end of the grab seat plate 406. The grab seat plate 406 is provided with a second through hole 415 for the wire rope to pass through. The end of the hoisting roller 414 in the hoisting roller group 405 is connected to a driven turbine 413. The lower end of the driven turbine 413 is connected to a driving worm. 412 are meshed with each other, and both ends of the driving worm 412 are rotatably connected with the bearing seat plate 423 at the upper end of the grab seat plate 406. The end of the driving worm 412 is connected to the output end of the driving motor 417 through the overload clutch unit. The overload clutch unit is driven by the driving motor 417 to work. The overload clutch unit can drive the driving worm 412 to rotate. The driving worm 412 matches the driven turbine 413 to drive the hoisting roller 414 to rotate, thereby realizing the winding of the wire rope. When overloaded, the overload clutch unit will cut off the power to avoid the problem of overload of components.

[0047] The overload clutch unit 416 includes a first friction disc 418 fixedly arranged at the output end of the driving motor 417, a second friction disc 419 is closely attached to the friction surface of the first friction disc 418, an end of the second friction disc 419 is connected to a transmission sleeve 421, a transmission shaft 422 is slidably provided at the end of the transmission sleeve 421, and an end of the transmission shaft 422 away from the transmission sleeve 421 is connected to a reset plate at the end of the driving worm 412, the second friction disc 419 and the reset plate are connected by an extrusion spring 420, and the first friction disc 418 and the second A matching bevel block is provided at the contact position of the friction disk 419, a rotation limit groove is provided on the inner wall of the transmission sleeve 421, and a rotation limit protrusion is provided on the surface of the transmission shaft 422. The rotation limit protrusion and the rotation limit groove enable the transmission sleeve 421 and the transmission shaft 422 to only slide relative to each other but not to rotate relative to each other. When the grab bucket 408 is closed, the resistance is greater than the set value. At this time, the bevel block between the first friction disk 418 and the second friction disk 419 will slip, and the transmission sleeve 421 will slide along the transmission shaft 422, thereby cutting off the power and avoiding the problem of excessive force.

[0048] Working principle: In actual use, the walking wheel 206 rotates at the upper end of the transfer beam gantry 100, so that the displacement slide group 200 can drive the grab bucket assembly 400 to complete the transfer of goods along the transfer beam gantry 100, and the steering drive gear 403 is driven to rotate by the steering motor 411. The steering drive gear 403 matches the steering driven gear 402, thereby driving the hoisting seat 404 to rotate around the steering driven gear 402, so that the grabbing direction of the grab bucket assembly 400 can be adjusted, and the flexibility of grabbing goods is improved. The overload clutch unit is driven by the driving motor 417 to work, and the overload clutch unit can drive the driving worm 412 to rotate. The driving worm 412 matches the driven turbine 413 to drive the hoisting roller 414 to rotate, thereby realizing the winding of the wire rope. When overloaded, the overload clutch unit will cut off the power to avoid the problem of overload of components;

[0049] When the sling 303 is overloaded, the first slide 210 will slide downward along the load-bearing guide rod 203. At this time, the brake link 208 will drive the overload brake plate 207 to move downward, thereby limiting the overload and preventing the equipment from overloading.

[0050] When the grab assembly 400 shakes, the load-bearing guide rod 203 is reeled in by the lifting hoist 201, so that the anti-swing energy absorbing rod 401 moves upward to the position of the swing energy absorbing assembly 300. At this time, the anti-swing energy absorbing rod 401 will move to the energy absorbing gap formed by multiple energy absorbing arc rods 313. At this time, when the grab assembly 400 shakes, the anti-swing energy absorbing rod 401 will generate a driving force on the energy absorbing arc rod 313 when it swings, so that the energy absorbing arc rod 313 slides outward along the transverse slide bar 307. During the sliding process, the energy absorber 304 will absorb the energy of the shaking. If the energy absorber 304 shakes too violently at this time, the extrusion wheel 308 at the outer end of the energy absorbing arc rod 313 will trigger the brake unit, thereby preventing the displacement slide group 200 from moving, thereby improving the safety of walking.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-swaying gantry crane, comprising a transfer beam gantry (100), wherein a sliding surface at the upper end of the transfer beam gantry (100) is provided with a moving slide groove, a displacement slide group (200) is provided in the moving slide groove, and a lifting hoist (201) for lifting is provided on the displacement slide group (200), wherein the lifting hoist (201) is provided for lifting. A lifting rope (303) is wound around the output end of the lifting hoist (201), and a grab bucket assembly (400) for grabbing goods is provided at the lower end of the lifting rope (303); The grab bucket assembly (400) comprises an anti-swing energy absorbing rod (401) connected to the lower end of the lifting rope (303); a lifting seat (404) is provided at the lower end of the anti-swing energy absorbing rod (401); the lower end of the lifting seat (404) is connected to a grab seat plate (406) via a lifting rod (409); two grab buckets (408) are provided below the grab seat plate (406); a grab connecting rod (407) is provided on the outer side of each grab bucket (408); the upper end of the grab connecting rod (407) is rotatably connected to the outer side of the grab seat plate (406); the two grab buckets (408) are connected to an anti-overload driving member for driving them to open or close; and a swing energy absorbing assembly (300) is also provided at the lower end of the displacement slide group (200) for preventing the grab bucket assembly (400) from shaking; The swing energy absorption assembly (300) comprises a plurality of energy absorption sliders (312) arranged at the lower end of the displacement slide group (200), the energy absorption sliders (312) being slidably arranged with the bottom of the second slide seat (205), an energy absorption arc rod (313) being arranged at the lower end of the energy absorption slider (312), a plurality of arc-shaped pressing sections being arranged at the lower end of the energy absorption arc rod (313), an array of the plurality of energy absorption arc rods (313) forming an energy absorption gap matching the diameter of the anti-swing energy absorption rod (401), and the energy absorption sliders (312) being arranged at the lower end of the energy absorption arc rod (313). 12) a transverse sliding rod (307) is provided at the outer end, a transverse fixing plate (306) is provided at the lower end of the displacement slide group (200) and is slidably arranged with the transverse sliding rod (307), an energy absorber (304) is provided between the transverse fixing plate (306) and the energy absorbing sliding block (312), an extrusion wheel (308) is provided at the outer end of the transverse sliding rod (307), and a brake unit for limiting the movement of the displacement slide group (200) is provided on the displacement slide group (200) outside the extrusion wheel (308); The anti-overload drive component comprises a rotating traction shaft (410), the rotating traction shaft (410) is rotatably connected to two grab buckets (408), the middle position of the rotating traction shaft (410) is connected to a steel wire rope, the upper end of the steel wire rope is wound on a hoisting roller group (405), the two ends of the hoisting roller group (405) are rotatably connected to a vertical plate at the upper end of a grab seat plate (406), the grab seat plate (406) is provided with a second through hole (415) for facilitating the steel wire rope to pass through, the end of the hoisting roller (414) in the hoisting roller group (405) is connected to a driven turbine (413), the lower end of the driven turbine (413) is meshed with a driving worm (412), the two ends of the driving worm (412) are rotatably connected to a bearing seat plate (423) at the upper end of the grab seat plate (406), and the end of the driving worm (412) is connected to the output end of a driving motor (417) via an overload clutch unit.

2. The anti-sway gantry crane according to claim 1, characterized in that: The displacement slide group (200) comprises a second slide seat (205), a side surface of the second slide seat (205) is provided with a sliding side groove (209) matching the transfer beam gantry (100), the outer side of the second slide seat (205) is provided with a plurality of running wheels (206) in contact with the upper end surface of the transfer beam gantry (100), the running wheels (206) are connected to a motor group for driving rotation, and the second slide seat (205) is provided with a lifting through hole (303) matching the lifting rope (303). 14), a first slide (210) is provided at the upper end of the second slide (205), a plurality of load-bearing guide rods (203) are provided at the upper end of the second slide (205), the load-bearing guide rods (203) are slidably matched with guide holes at the upper end of the first slide (210), the first slide (210) and the second slide (205) are connected via a load-bearing spring (204), and the first slide (210) is provided with a first through hole (202) matching the suspension rope (303).

3. The anti-sway gantry crane according to claim 1, characterized in that: The brake unit comprises a friction ring plate (301) slidably arranged on the outside of a displacement slide group (200), the friction ring plate (301) being provided with a plurality of guide holes, each guide hole being provided with a vertical guide rod (309), the lower end of the vertical guide rod (309) being connected to the displacement slide group (200) via a positioning connecting plate (311), the positioning connecting plate (311) and the friction ring plate (301) being connected via a vertical spring (310), a plurality of side rods (302) being horizontally arranged on the outside of the friction ring plate (301), and the outer ends of the side rods (302) being provided with side inclined plates (305) matching the extrusion wheels (308).

4. The anti-sway gantry crane according to claim 1, characterized in that: The overload clutch unit (416) comprises a first friction disc (418) fixedly arranged at the output end of the driving motor (417); a second friction disc (419) is closely attached to the friction surface of the first friction disc (418); an end of the second friction disc (419) is connected to a transmission sleeve (421); a transmission shaft (422) is slidably disposed at the end of the transmission sleeve (421); an end of the transmission shaft (422) away from the moving sleeve is connected to a reset plate at the end of the driving worm (412); the second friction disc (419) and the reset plate are connected via a compression spring (420); a matching inclined block is disposed at the contact position between the first friction disc (418) and the second friction disc (419); a rotation limiting groove is disposed on the inner wall of the transmission sleeve (421); and a rotation limiting protrusion is disposed on the surface of the transmission shaft (422).

5. The anti-sway gantry crane according to claim 1, characterized in that: The energy absorber (304) is a damping spring.

6. The anti-sway gantry crane according to claim 1, characterized in that: A steering driven gear (402) is fixedly provided at the upper end of the hoisting seat (404); the steering driven gear (402) is fixedly connected to the anti-sway energy absorption rod (401); the lower end of the steering driven gear (402) is rotationally connected to the hoisting seat (404); the outer side of the steering driven gear (402) is meshed with the steering drive gear (403); the steering drive gear (403) is arranged at the output end of the steering motor (411); and the steering motor (411) is fixed to the hoisting seat (404).

7. The anti-sway gantry crane according to claim 1, characterized in that: A pulley matching the displacement slide group (200) is provided at the lower end of the energy absorbing slide block (312).

Citation Information

Patent Citations

  • Electric hoist grab bucket portal crane

    CN217947382U

  • Multistage buffer device of electric block

    CN107522118A

  • Overload protection device for steel wire rope

    CN107986164A

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