Anti-shaking device of crane

Abstract

The utility model discloses a crane anti-shaking device which comprises a cross beam, a movable seat is arranged outside the cross beam and is in sliding fit with the cross beam, and a mounting seat is fixedly arranged at the lower end of the movable seat; the driving cavities are formed in the two sides of the interior of the mounting base, one end of each driving cavity is of an opening structure, second motors are fixedly arranged on the two sides of the exterior of the mounting base, and output shafts of the second motors extend into the driving cavities; a hoisting rope is fixedly arranged outside the output shaft, located in the driving cavity, of the second motor on one side, and the other end of the hoisting rope is fixedly connected with the output shaft, located in the driving cavity, of the second motor on the other side. And the problem that the electric hoist is difficult to fix in the hoisting process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to an anti-shaking device for cranes. Background Art

[0002] Electric hoist crane is a kind of lifting machinery with the characteristics of cyclic and intermittent motion. A complete working cycle includes: the picking device lifts the object from the picking location, then moves horizontally to the designated location to lower the object, and then moves in the opposite direction to return the picking device to its original position for the next cycle. Electric hoist crane is composed of motor, reducer, brake, drum, lifting hook and other components, which are used to lift and move heavy objects. The motor drives the drum to rotate through the reducer to raise or lower the hoisted object, while the brake plays a role in limiting the rotation of the motor. As a core component, anti-sway is one of the important functions of the electric hoist.

[0003] For example, the Chinese patent "A Crane Anti-Sway Device" with publication number CN212101693U includes an installation fixing frame, a fixing plate is provided on the installation fixing frame, a steel wire rope is passed through the fixing plate, the installation fixing frame includes an upper fixing frame and a lower fixing frame, the fixing plate is located at the top of the upper fixing frame, a fixing plate is provided between the upper fixing frame and the lower fixing frame, the fixing plate is fixedly connected to the lower fixing frame, a limiting member is provided between the upper fixing frame and the lower fixing frame, the limiting member includes a telescopic rod and a spring, one end of the telescopic rod is fixedly connected to the upper fixing frame, the other end of the telescopic rod is fixedly connected to the lower fixing frame, the spring is coated on the outer surface of the telescopic rod, and a drum and a motor for retracting and releasing the steel wire rope are provided at the center position of the top end of the upper fixing frame.

[0004] Although the above-mentioned prior art can prevent the crane from shaking, in actual use, on the one hand, the usual single-motor crane is prone to insufficient torque during lifting. When lifting goods, the motor is responsible for power output. If the motor runs unsteadily or the torque is insufficient, it will cause shaking during the lifting process. On the other hand, the electric hoist is difficult to fix during the lifting process. During the lifting process, the electric hoist is moved to the appropriate position and then lifted without fixing, causing the lifted object to shake or accidentally fall off, thereby causing harm to the operator or the lifted object. Therefore, it does not meet the existing needs. In this regard, we have proposed a crane anti-sway device. Utility Model Content

[0005] The utility model aims to provide a crane anti-sway device to solve the problems in the above-mentioned background technology that a conventional single-motor crane is prone to insufficient torque during hoisting and an electric hoist is difficult to fix during hoisting.

[0006] To achieve the above object, the utility model provides the following technical solution: a crane anti-sway device, comprising a crossbeam, a movable seat is arranged outside the crossbeam, and the movable seat and the crossbeam are slidably matched, and a mounting seat is fixedly arranged at the lower end of the movable seat; and further comprising:

[0007] A driving cavity is arranged on both sides inside the mounting base, and one end of the driving cavity is an open structure. Second motors are fixedly arranged on both sides outside the mounting base, and the output shaft of the second motor extends to the inside of the driving cavity. A lifting rope is fixedly arranged outside the output shaft of the second motor located inside the driving cavity on one side, and the other end of the lifting rope is fixedly connected to the output shaft of the second motor located inside the driving cavity on the other side.

[0008] Preferably, hydraulic telescopic devices are fixedly provided at the upper and lower parts in the middle of the front and rear ends of the exterior of the moving seat, and the telescopic end of the hydraulic telescopic device extends into the interior of the moving seat, and a rubber plate is fixedly provided on one side of the telescopic end of the hydraulic telescopic device located inside the moving seat.

[0009] Preferably, limiting plates are provided on both sides of the middle position of the front end of the mounting seat, and the limiting plates are fixedly connected to the mounting seat, a rotating rod is provided inside the limiting plate, and the rotating rod is rotatably connected to the inner wall of the limiting plate, and a fourth pulley is fixedly provided outside the rotating rod.

[0010] Preferably, mounting rods are fixedly provided on both sides of a middle position below the front end of the mounting seat, a third pulley is provided inside the mounting rod, and the third pulley is rotatably connected to the mounting rod.

[0011] Preferably, a connecting rod is provided directly below the mounting seat, first pulleys are fixedly provided on both sides of the connecting rod, and a hook is fixedly provided at the lower end of the connecting rod.

[0012] Preferably, a fixing rod is fixedly provided below the middle position of the rear end of the mounting seat, a mounting ear plate is fixedly provided at the lower end of the fixing rod, a second pulley is provided inside the mounting ear plate, and the second pulley is rotatably connected to the mounting ear plate.

[0013] Preferably, the moving seat is fixedly provided with a first motor at the front and rear ends outside both sides of the hydraulic telescopic device, and the output shaft of the first motor extends to the interior of the moving seat, and the first motor is fixedly provided with rollers outside the output shaft inside the moving seat, and the rollers are slidably matched with the crossbeam.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can increase the torque of the electric hoist through the second motor and the lifting rope. One end of the lifting rope is first fixed to the output shaft of the second motor inside the driving cavity on one side. At this time, the other end of the lifting rope passes through the driving cavity on one side and passes through and is wound around the first pulley on one side, the second pulley and the first pulley on the other side in sequence, and is finally fixed to the output shaft of the second motor inside the driving cavity on the other side. When performing lifting operations, the second motors on both sides are turned on, so that the output shaft of the second motor drives the lifting rope to be wound around the output shaft of the second motor. At this time, the first pulley and the second pulley are cooperated to make the hook move upward stably, thereby avoiding the shaking of the electric hoist during the lifting process due to insufficient torque of the first motor.

[0016] 2. The utility model can fix the electric hoist during lifting through the hydraulic telescopic device and the rubber plate. During lifting, the first motor is turned on, so that the output shaft of the first motor drives the roller to slide on the beam, and then the mounting seat is driven to move through the cooperation of the roller and the moving seat until the mounting seat moves to a suitable position. At this time, the hydraulic telescopic device is turned on, so that the telescopic end of the hydraulic telescopic device drives the rubber plate to move toward the beam until the rubber plate contacts and squeezes the beam. At this time, the lifting operation is carried out to prevent the electric hoist from causing the lifted object to shake or accidentally fall off during the lifting process.

[0017] 3. The utility model can keep the lifting rope in a tensioned state during hoisting through the third pulley and the fourth pulley. The lifting rope passes through the driving cavity and is installed in the third pulley and the fourth pulley. When hoisting is performed, when the lifting rope passes through the third pulley and the fourth pulley, the surfaces of the third pulley and the fourth pulley will generate friction on the lifting rope, and the direction of the friction force is opposite to the tensioning direction of the lifting rope, so that the lifting rope is kept tensioned to a certain extent. At the same time, a section of the lifting rope above the third pulley and the fourth pulley will be affected by its own gravity, so that it maintains a certain droop. When the lifting rope moves on the third pulley and the fourth pulley, it will be tightened due to its own weight, thereby keeping it in a tensioned state, avoiding the lifting rope from being slackened during hoisting, thereby preventing the slackened lifting rope from shaking during hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the internal structure of the utility model;

[0019] Figure 2 It is a side view of the internal structure of the utility model;

[0020] Figure 3 It is a partial enlarged view of the mobile structure of the utility model;

[0021] Figure 4 For the utility model Figure 1 A partial enlarged view of area A.

[0022] In the figure: 1. crossbeam; 2. moving seat; 3. mounting seat; 4. first motor; 5. hydraulic telescopic device; 6. roller; 7. second motor; 8. lifting rope; 9. limit plate; 10. first pulley; 11. connecting rod; 12. hook; 13. fixing rod; 14. mounting ear plate; 15. second pulley; 16. mounting rod; 17. third pulley; 18. driving chamber; 19. fourth pulley; 20. rotating rod; 21. rubber sheet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4 The utility model provides an embodiment: a crane anti-sway device, comprising a crossbeam 1, a movable seat 2 is arranged outside the crossbeam 1, and the movable seat 2 is slidably matched with the crossbeam 1, and a mounting seat 3 is fixedly arranged at the lower end of the movable seat 2; and further comprising:

[0025] The driving cavity 18 is arranged on both sides inside the mounting base 3, and one end of the driving cavity 18 is an open structure. The second motor 7 is fixedly arranged on both sides outside the mounting base 3, and the output shaft of the second motor 7 extends to the inside of the driving cavity 18. A lifting rope 8 is fixedly arranged outside the output shaft of the second motor 7 located inside the driving cavity 18 on one side, and the other end of the lifting rope 8 is fixedly connected to the output shaft of the second motor 7 located inside the driving cavity 18 on the other side.

[0026] When in use, one end of the lifting rope 8 is first fixed on the output shaft of the second motor 7 inside the driving cavity 18 on one side. At this time, the other end of the lifting rope 8 passes through the driving cavity 18 on one side and passes through and is wound around the first pulley 10, the second pulley 15 on one side and the first pulley 10 on the other side in sequence, and is finally fixed on the output shaft of the second motor 7 inside the driving cavity 18 on the other side. When performing lifting operations, the second motors 7 on both sides are turned on, so that the output shaft of the second motor 7 drives the lifting rope 8 to be reeled on the output shaft of the second motor 7. At this time, the first pulley 10 and the second pulley 15 cooperate with each other to make the hook 12 move upward stably.

[0027] See also Figure 1 and Figure 3 A hydraulic telescopic device 5 is fixedly provided at the upper and lower parts in the middle of the front and rear ends of the outside of the moving seat 2, and the telescopic end of the hydraulic telescopic device 5 extends to the inside of the moving seat 2. A rubber plate 21 is fixedly provided on one side of the telescopic end of the hydraulic telescopic device 5 inside the moving seat 2, so that the rubber plate 21 can be driven to move by the hydraulic telescopic device 5, thereby keeping the electric hoist stable during lifting.

[0028] See also Figure 1 and Figure 2 Limiting plates 9 are arranged on both sides of the middle position of the front end of the mounting seat 3, and the limiting plates 9 are fixedly connected to the mounting seat 3. A rotating rod 20 is arranged inside the limiting plate 9, and the rotating rod 20 is rotatably connected to the inner wall of the limiting plate 9. A fourth pulley 19 is fixedly arranged outside the rotating rod 20, so that the direction of the lifting rope 8 can be changed by the fourth pulley 19 while keeping the lifting rope 8 in a tensioned state.

[0029] See also Figure 1 and Figure 2 A mounting rod 16 is fixedly provided on both sides of the middle position below the front end of the mounting seat 3, and a third pulley 17 is provided inside the mounting rod 16, and the third pulley 17 is rotatably connected to the mounting rod 16, so that the direction of the lifting rope 8 can be changed by the third pulley 17 while keeping the lifting rope 8 in a tensioned state.

[0030] See also Figure 2 A connecting rod 11 is provided directly below the mounting seat 3 , and first pulleys 10 are fixedly provided on both sides of the connecting rod 11 , and a hook 12 is fixedly provided at the lower end of the connecting rod 11 , so as to facilitate lifting objects through the hook 12 .

[0031] See also Figure 1 and Figure 2 A fixing rod 13 is fixedly provided at the lower middle position of the rear end of the mounting seat 3, a mounting ear plate 14 is fixedly provided at the lower end of the fixing rod 13, a second pulley 15 is provided inside the mounting ear plate 14, and the second pulley 15 is rotatably connected to the mounting ear plate 14, so that the hook 12 can be stably moved through the second pulley 15.

[0032] See also Figure 1 The moving seat 2 is located on the front and rear ends of both sides of the hydraulic telescopic device 5, and the output shaft of the first motor 4 extends to the inside of the moving seat 2. The first motor 4 is located inside the moving seat 2, and a roller 6 is fixedly provided on the outside of the output shaft, and the roller 6 is slidably matched with the crossbeam 1, so that the moving seat 2 can be changed in position by the first motor 4 and the roller 6.

[0033] Working principle: When hoisting, turn on the first motor 4, so that the output shaft of the first motor 4 drives the roller 6 to slide on the beam 1, and then drives the mounting seat 3 to move through the cooperation of the roller 6 and the moving seat 2, until the mounting seat 3 moves to a suitable position, then turn on the hydraulic telescopic device 5, so that the telescopic end of the hydraulic telescopic device 5 drives the rubber plate 21 to move toward the beam 1, until the rubber plate 21 contacts and squeezes the beam 1, and then the hoisting operation is carried out. When hoisting, the lifting rope 8 passes through the first When the third pulley 17 and the fourth pulley 19 are in motion, the surfaces of the third pulley 17 and the fourth pulley 19 will generate friction on the lifting rope 8, and the direction of the friction is opposite to the tensioning direction of the lifting rope 8, so that the lifting rope 8 maintains a certain degree of tension. At the same time, a section of the lifting rope 8 above the third pulley 17 and the fourth pulley 19 will be affected by its own gravity, so that it maintains a certain droop. When the lifting rope 8 moves on the third pulley 17 and the fourth pulley 19, it will be tightened due to its own weight, thereby maintaining a tensioned state.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A crane anti-sway device, comprising a crossbeam (1), a movable seat (2) being arranged outside the crossbeam (1), the movable seat (2) being slidably matched with the crossbeam (1), and a mounting seat (3) being fixedly arranged at the lower end of the movable seat (2); Features: Also includes: A driving cavity (18) is arranged on both sides of the interior of the mounting seat (3), and one end of the driving cavity (18) is an open structure. A second motor (7) is fixedly arranged on both sides of the exterior of the mounting seat (3), and the output shaft of the second motor (7) extends to the interior of the driving cavity (18). A lifting rope (8) is fixedly arranged outside the output shaft of the second motor (7) located inside the driving cavity (18) on one side, and the other end of the lifting rope (8) is fixedly connected to the output shaft of the second motor (7) located inside the driving cavity (18) on the other side.

2. The crane anti-sway device according to claim 1, characterized in that: A hydraulic telescopic device (5) is fixedly provided at the upper and lower parts of the middle position between the front and rear ends of the exterior of the movable seat (2), and the telescopic end of the hydraulic telescopic device (5) extends into the interior of the movable seat (2). A rubber plate (21) is fixedly provided on one side of the telescopic end of the hydraulic telescopic device (5) located inside the movable seat (2).

3. The crane anti-sway device according to claim 1, characterized in that: Limiting plates (9) are provided on both sides of the middle position of the front end of the mounting seat (3), and the limiting plates (9) are fixedly connected to the mounting seat (3). A rotating rod (20) is provided inside the limiting plates (9), and the rotating rod (20) is rotatably connected to the inner wall of the limiting plates (9). A fourth pulley (19) is fixedly provided outside the rotating rod (20).

4. The crane anti-sway device according to claim 1, characterized in that: Mounting rods (16) are fixedly arranged on both sides of the middle position below the front end of the mounting seat (3), a third pulley (17) is arranged inside the mounting rod (16), and the third pulley (17) is rotatably connected to the mounting rod (16).

5. The crane anti-sway device according to claim 1, characterized in that: A connecting rod (11) is arranged directly below the mounting seat (3), first pulleys (10) are fixedly arranged on both sides of the connecting rod (11), and a hook (12) is fixedly arranged at the lower end of the connecting rod (11).

6. The crane anti-sway device according to claim 1, characterized in that: A fixing rod (13) is fixedly arranged below the middle position of the rear end of the mounting seat (3), a mounting ear plate (14) is fixedly arranged at the lower end of the fixing rod (13), a second pulley (15) is arranged inside the mounting ear plate (14), and the second pulley (15) is rotatably connected to the mounting ear plate (14).

7. The crane anti-sway device according to claim 2, characterized in that: The moving seat (2) is fixedly provided with a first motor (4) at the front and rear ends outside the two sides of the hydraulic telescopic device (5), and the output shaft of the first motor (4) extends into the interior of the moving seat (2). The first motor (4) is fixedly provided with a roller (6) outside the output shaft inside the moving seat (2), and the roller (6) is in sliding cooperation with the crossbeam (1).

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