A marine lifting tool

Abstract

The present application provides a marine hoisting tool, comprising two limit rods, a buffer box and a control assembly. The two limit rods are symmetrically arranged on both sides of the sling, one end of which contacts the sling and is arranged to obtain the swing information of the sling; the other end extends in a direction perpendicular to the swing direction of the sling, and the limit rod rotates along the rotation axis under the action of the sling. A connecting rod and a gravity ball are arranged in the buffer box, and under the action of the gravity ball, the limit rod can swing with the connecting rod. A slide groove, a slider sliding along the slide groove and an electromagnet are symmetrically arranged on both sides of the gravity ball in the buffer box, one end of the slide groove is connected to the buffer box, and the other end extends to the vicinity of the gravity ball; one side of the slider is fixed to the buffer box by a telescopic spring, and an electromagnet is arranged on the other side. The control assembly is used to receive information from the pressure sensor and turn on and off the electromagnet according to the received information. When the electromagnet is magnetic, the gravity ball is adsorbed to drive the connecting rod to swing in a preset direction. The present application solves the problem of inertial swing of the sling.

Description

Technical Field

[0001] The present application relates to the field of lifting technology, and in particular to a marine lifting tool. Background Art

[0002] In the manufacturing industry, a large number of lifting tools are widely used to improve the efficiency of loading and unloading materials and finished products and lifting equipment. Among the lifting equipment, pneumatic hoists are a small, light, safe and easy to install and use lifting tool that has attracted much attention. Pneumatic hoists include a hoist body and a hoisting device installed at its bottom for lifting.

[0003] In actual use, since the hoist body and the top bracket are connected by front-to-back sliding, the sling is connected to the pneumatic hoist body by a rope chain, and the bottom of the sling is equipped with a heavy object to be lifted. After the pneumatic hoist stops sliding, the heavy object at the bottom of the sling will have a large pendulum inertial swing relative to the hoist body. After the inertial swing occurs, it takes a while for the whole to stabilize before the heavy object can be placed to complete the entire lifting work. The inertial swing generated prolongs the lifting time to a certain extent and reduces the overall lifting efficiency. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a marine lifting tool, which solves the technical problem that a lifting device connected to a heavy object in the lifting tool will experience a large inertial swing after being moved to a lifting position.

[0005] The present application provides a ship lifting tool, which is arranged in a ship, and comprises a lifting body, wherein the top of the lifting body is connected to the top of the ship and moves along the top of the ship, a lifting tool is provided at the bottom of the lifting body, a weight is arranged at the bottom of the lifting tool, the lifting tool moves with the lifting body and will swing inertia after moving to a predetermined position, and the ship lifting tool also comprises:

[0006] Two limit rods are symmetrically arranged on both sides of the sling along a direction parallel to the bottom of the lifting body, one end of each limit rod contacts the sling, and a pressure sensor is arranged at the contact point to obtain the swing information of the sling; the other end extends perpendicular to the swing direction of the sling, and a rotation axis is provided at the end, and the limit rod rotates along the rotation axis with the sling;

[0007] A buffer box is arranged at the bottom of the hoisting body, and a connecting rod and a gravity ball are arranged in the buffer box. One end of the connecting rod is movably connected to the bottom of the hoisting body, and the gravity ball is arranged at the other end. The limit rod is arranged at the rotating shaft end and is fixedly connected to the connecting rod and moves with the connecting rod; in the buffer box, along the swinging direction of the connecting rod, a slide groove, a slider sliding along the slide groove and an electromagnet are symmetrically arranged on both sides of the gravity ball, one end of the slide groove is connected to the buffer box, and the other end extends to be close to the gravity ball; the slider is arranged at the end of the slide groove close to the gravity ball, and the electromagnet is arranged on the side of the slider close to the gravity ball, and the other side of the slider is elastically connected to the buffer box through a telescopic spring;

[0008] The control component is used to receive the swing information of the hanger obtained by the pressure sensor, and turn the electromagnet on and off according to the swing information of the hanger. When the electromagnet is energized and has magnetism, the gravity ball is adsorbed to drive the connecting rod and the limit rod to move in a preset direction.

[0009] In one embodiment, the two limiting rods are provided with covering grooves at the ends contacting the sling, the inner dimension of each covering groove matches the outer dimension of the sling, the covering grooves of the two limiting rods form a closed area, and the sling is arranged in the closed area.

[0010] In one embodiment, the coating groove is elastically connected to the limiting rod via a damping spring, and the pressure sensor is arranged on the damping spring close to the end of the limiting rod.

[0011] In one embodiment, a T-shaped structure is provided at the end of the connecting rod connected to the lifting body, and an arc structure is provided on the inner side of the bottom of the lifting body. The T-shaped structure is sleeved on the arc structure to enable the connecting rod to swing along the arc structure; compression springs are provided at both ends of the arc structure to reduce the swing amplitude of the connecting rod.

[0012] In one embodiment, it also includes a monitoring component, which is arranged on the side of the buffer box close to the spreader and is used to monitor the swing amplitude of the spreader. The control component controls the power-on time of the electromagnet according to the monitoring information of the monitoring component.

[0013] In one embodiment, a storage device is provided in the control component for storing the power-on time of the electromagnet under different monitoring information.

[0014] In one embodiment, the control component also includes a gravity sensor for acquiring position information of the gravity ball and regulating the magnetism of the electromagnet according to the position information.

[0015] In one embodiment, a rubber layer is provided on a surface of the coating groove close to the hanger, and the surface of the rubber layer is set to be a smooth surface.

[0016] In one embodiment, the gravity ball is a solid ball structure, and the material is any one of iron, nickel and cobalt.

[0017] In one embodiment, the extended ends of the slide grooves are connected via arc-shaped grooves, and the gravity ball swings along the arc-shaped grooves.

[0018] The marine lifting tool in this application has the following beneficial effects:

[0019] 1. Through the joint action of the limit rod and the buffer box, when the hoisting device swings inertia, the buffer box provides a reverse force, so that the hoisting device at one end of the limit rod is subjected to the reverse force and its swing is reduced, thereby reducing its swing amplitude and swing duration, and improving the lifting efficiency.

[0020] 2. The present application sets a buffer box on the lifting body. When the lifting body itself shakes, the buffer box can also reduce the shaking amplitude, thereby greatly reducing the shaking during lifting caused from the source and improving the use efficiency during lifting.

[0021] 3. The present application is provided with a monitoring component on the buffer box, which can observe the usage degree of explosion-proof chains and slings based on the setting angle, and can generate records of the degree of aging and send them to the sling users to form a usage record before, during and after use, and facilitate subsequent automatic control adjustments.

[0022] 4. The present application is provided with a monitoring component, a control component and a storage component in the control component, which can control and store the best vibration reduction power-on and power-off time plan for the inertial swing of the sling. When the same swing force is generated next time, the previous power-on and power-off time plan will be called out and output, forming a continuous self-adjustment effect, thereby achieving the effect of automatic adjustment of the swing amplitude of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a ship lifting tool according to an embodiment of the present application;

[0025] Figure 2is a cross-sectional view of a marine lifting tool according to an embodiment of the present application;

[0026] Figure 3 It is a schematic structural diagram of a limit rod according to an embodiment of the present application;

[0027] Figure 4 According to the embodiment of the present application Figure 1 Schematic diagram of the structure of area A in the middle.

[0028] 100, lifting body; 110, connecting plate; 120, arc structure; 130, compression spring; 200, lifting device; 300, buffer box; 310, slide groove; 311, arc groove; 320, slider; 321, telescopic spring; 322, electromagnet; 330, gravity ball; 340, connecting rod; 341, rotating shaft; 3411, T-shaped structure; 400, limit rod; 410, rotating shaft; 430, covering groove; 431, damping spring; 432, pressure sensor; 500, control component; 600, monitoring component DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0031] See also Figure 1-Figure 3 The present application provides a ship lifting tool, which is arranged in a ship, including a lifting body 100. The top of the lifting body 100 is connected to the top of the ship through a connecting plate 110 and moves along the top of the ship. The lifting device 200 moves with the lifting body 100. A heavy object is arranged at the bottom of the lifting device 200. After the lifting device 200 moves to a predetermined position, it will swing inertially. The ship lifting tool of the present application also includes: two limit rods 400, a buffer box 300 arranged at the bottom of the lifting body 100, and a control component 500.

[0032] Two limit rods 400 are symmetrically arranged on both sides of the sling 200 along a direction parallel to the bottom of the lifting body 100. One end of each limit rod 400 is arranged in contact with the sling 200, and a pressure sensor 432 is arranged at the contact point for obtaining the swing force of the sling 200; the other end extends along a swing direction perpendicular to the sling 200, and a rotating shaft 410 is provided at the end, and the limit rod 400 rotates along the rotating shaft 410 with the sling 200.

[0033] The buffer box 300 is arranged at the bottom of the lifting body 100 and connected to the end of the limit rod 400. A connecting rod 340 and a gravity ball 330 are provided in the buffer box. One end of the connecting rod 340 is movably connected to the bottom of the lifting body 100 through a rotating shaft 341, and the other end is provided with a gravity ball 330. The rotating shaft 410 at the end of the limit rod 400 is fixed to the connecting rod 340 through an electric control motor and moves with the connecting rod 340, and the limit rod 400 forms the same angle of rotation as the sling 200 based on the rotating shaft 410 and the electric control motor. In the buffer box 300, along the swing direction of the connecting rod 340, a slide groove 310, a slider 320 sliding along the slide groove 310, and an electromagnet 322 are symmetrically arranged on both sides of the gravity ball 330. One end of the slide groove 310 is connected to the buffer box 300, and the other end extends to the vicinity of the gravity ball 330; one side of the slider 320 is fixed to the buffer box 300 by a telescopic spring 321, and the other side is arranged with an electromagnet 322;

[0034] The control component 500 is used to receive the swing force information of the hanger 200 obtained by the pressure sensor 432, and turn the electromagnet 322 on and off according to the received information. When the electromagnet 322 on one side is energized and magnetic, the gravity ball 330 is adsorbed to drive the connecting rod 340 and the limit rod 400 to swing in the direction opposite to the swing direction of the hanger 200.

[0035] In the above implementation process, a pressure sensor 432 is arranged at one end of the limit rod 400 to obtain the magnitude of the inertial swing force of the sling 200, and transmits the swing force to the control component 500; the other end is fixed on the connecting rod 340 and swings with the connecting rod 340. After receiving the information from the pressure sensor 432, the control component 500 energizes the electromagnet 322 in the opposite direction of the pressure sensor 432 to attach magnetism, and the gravity ball 330 is adsorbed by the electromagnet 322, so that the connecting rod 340 and the limit rod 400 are subjected to a force opposite to the swing direction to reduce the swing amplitude, and the limit rod 400 forms a reverse resistance to the swing of the sling 200. As the two electromagnets 322 are powered on and off at intervals, the swing amplitude of the sling 200 gradually decreases and tends to be stable until the sling 200 swings small enough.

[0036] In one embodiment, in order to ensure that the sling 200 is always in contact with the limit rod 400 during the swinging process, and to evenly transfer the swinging force of the sling 200 to the limit rod 400, or evenly transfer the force of the limit rod 400 to the sling 200, a covering groove 430 is provided at the ends of the two limit rods 400 contacting the sling 200, and the inner dimension of each covering groove 430 matches the outer dimension of the sling 200. The covering grooves 430 of the two limit rods 400 form a closed area, and the sling 200 is arranged in the closed area. When the sling 200 swings, it is always in a covering groove 430, and the contact area with one end of the limit rod 400 is increased, and the force transmission is more stable.

[0037] In one embodiment, see Figure 3 When the inertial swing of the hanger 200 is small, the present application elastically connects the covering groove 430 and the limit rod 400 through the damping spring 431. The damping spring 431 can play a buffering role on the hanger 200, that is, when the hanger 200 swings, the force is first transmitted to the damping spring 431. The damping spring 431 itself has a certain damping effect. It is elastically deformed by being squeezed to absorb the swing force of the hanger 200, forming a small clamping damping effect, thereby reducing the swing of the hanger 200. The pressure sensor 432 is arranged at the end of the damping spring 431 close to the limit rod 400 to receive the remaining swing pressure after being absorbed by the damping spring 431. If the pressure information received by the pressure sensor 432 is small, the damping structure inside the buffer box 300 is not triggered to form a damping, and only a small clamping damping effect is formed through the limit rod 400. Thus, the damping spring 431 is used for small swings, and the device in the buffer box 300 can be activated by the pressure sensor 432 for large swings, thereby achieving a double damping effect.

[0038] In one embodiment, in order to limit the swing amplitude of the connecting rod 340, it is possible to avoid the reduction of the vibration reduction effect due to the excessive swing amplitude causing the electromagnet 322 to be too far away from the gravity ball 330 and the magnetic adsorption force to be too low. Figure 4 A T-shaped structure 3411 is provided at the end of the connecting rod 340 connected to the lifting body 100, and an arc structure 120 is provided on the inner side of the bottom of the lifting body 100. The T-shaped structure 3411 is sleeved on the arc structure 120 to enable the connecting rod 340 to swing along the arc structure 120; compression springs 130 are provided at both ends of the arc structure 120. When the connecting rod 340 swings along the arc structure 120, the compression spring 130 can reduce the swing amplitude of the connecting rod 340.

[0039] In one embodiment, it also includes a monitoring component 600 and a wireless transmission component. The monitoring component 600 is arranged on the side of the buffer box 300 close to the sling 200, and is used to monitor the swing amplitude of the sling 200, and record the swing amplitude of the sling 200 under different swing forces, and transmit the monitored information to the control component 500 through the wireless transmission component. The control component can use MCU microcontroller chip technology. The control component 500 better controls the power-on time of the two electromagnets 322 according to the monitoring information of the monitoring component 600. The monitoring component 600 can also observe the degree of use of the explosion-proof chain and the sling 200 based on the setting angle, and can generate records for the degree of aging, and send them to the background through the wireless transmission component to constitute a use record before, during and after use, and facilitate subsequent automatic control adjustments.

[0040] In one embodiment, in order to control the best vibration reduction power-on and power-off time plan for the sling 200 shaking, and store it according to the pressure sensor 432 and the monitoring component 600, the next time the pressure sensor 432 senses the same pressure, the last power-on and power-off time plan will be called out and output, forming a continuous self-adjustment effect until the effect of automatically adjusting the shaking amplitude is completed. A storage unit is provided in the control component 500 for storing the power-on and power-off time of the electromagnet 322 under different monitoring information.

[0041] In one embodiment, in order to solve the swing of the lifting body 100, the swing amplitude of the lifting body 100 relative to the sling 200 is smaller. In order to detect its swing amplitude, the magnetism of the electromagnet 322 is controlled by obtaining the position information of the gravity ball 330. A gravity sensor and a vibration sensor are provided in the control component 500. The gravity sensor and the vibration sensor are arranged below the gravity ball 330 and between the two electromagnets 322 to obtain the position information and vibration direction of the gravity ball 330. The control component 500 adjusts the on and off time of the electromagnet 322 according to the position information and vibration direction of the gravity ball 330. When the lifting body 100 swings, its swing direction is obtained, and the electromagnet 322 in the opposite direction to its swing direction is energized to adsorb the gravity ball 330. The adsorption force on the gravity ball 330 is opposite to the swing direction of the lifting body 100, thereby reducing the swing of the lifting body.

[0042] In one embodiment, in order to reduce the hard contact between the sling 200 and the limiting rod 400 and reduce the structural impact on the sling 200 and further play a buffering role, a rubber layer is provided on the surface of the covering groove 430 close to the sling 200, and the surface of the rubber layer is set to be a smooth surface.

[0043] In one embodiment, the gravity ball 330 is a solid ball structure, and the material is any one of iron, nickel and cobalt.

[0044] In one embodiment, to adapt to the movement trajectory of the gravity ball 330 , the extended end of the slide groove 310 is connected through an arc-shaped groove 311 , and the gravity ball 330 swings along the arc-shaped groove 311 .

[0045] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ship lifting tool, arranged in a ship, comprising a lifting body, the top of which is connected to the top of the ship and moves along the top of the ship, a lifting tool is provided at the bottom of the lifting body, a weight is arranged at the bottom of the lifting tool, the lifting tool moves with the lifting body and will swing inertia after moving to a predetermined position, characterized in that: The marine lifting tool also includes: Two limit rods are symmetrically arranged on both sides of the sling along a direction parallel to the bottom of the lifting body, one end of each limit rod contacts the sling, and a pressure sensor is arranged at the contact point for obtaining the swing information of the sling; the other end extends in a direction perpendicular to the swing direction of the sling, and a rotating shaft is arranged at the end, and the limit rod rotates along the rotating shaft with the sling; the ends of the two limit rods contacting the sling are provided with a covering groove, the inner dimension of each covering groove matches the outer dimension of the sling, the covering grooves of the two limit rods enclose a closed area, and the sling is arranged in the closed area; A buffer box is arranged at the bottom of the hoisting body, and a connecting rod and a gravity ball are arranged in the buffer box. One end of the connecting rod is movably connected to the bottom of the hoisting body, and the gravity ball is arranged at the other end. The limit rod is arranged at the rotating shaft end and is fixedly connected to the connecting rod and moves with the connecting rod; in the buffer box, along the swinging direction of the connecting rod, a slide groove, a slider sliding along the slide groove and an electromagnet are symmetrically arranged on both sides of the gravity ball, one end of the slide groove is connected to the buffer box, and the other end extends to be close to the gravity ball; the slider is arranged at the end of the slide groove close to the gravity ball, and the electromagnet is arranged on the side of the slider close to the gravity ball, and the other side of the slider is elastically connected to the buffer box through a telescopic spring; The control component is used to receive the swing information of the hanger obtained by the pressure sensor, and turn the electromagnet on and off according to the swing information of the hanger. When the electromagnet is energized and has magnetism, the gravity ball is adsorbed to drive the connecting rod and the limit rod to move in a preset direction.

2. The ship lifting tool according to claim 1, characterized in that: The coating groove is elastically connected to the limiting rod via a damping spring, and the pressure sensor is arranged on the damping spring close to the end of the limiting rod.

3. The ship lifting tool according to claim 1, characterized in that: A T-shaped structure is provided at the end of the connecting rod connected to the lifting body, and an arc structure is provided on the inner side of the bottom of the lifting body. The T-shaped structure is sleeved on the arc structure to enable the connecting rod to swing along the arc structure; compression springs are provided at both ends of the arc structure to reduce the swing amplitude of the connecting rod.

4. The ship lifting tool according to claim 1, characterized in that: It also includes a monitoring component, which is arranged on the side of the buffer box close to the spreader and is used to monitor the swing amplitude of the spreader. The control component controls the power-on time of the electromagnet according to the monitoring information of the monitoring component.

5. The ship lifting tool according to claim 4, characterized in that: The control component is provided with a storage element for storing the power-on time of the electromagnet under different monitoring information.

6. The ship lifting tool according to claim 1, characterized in that: The control component also includes a gravity sensor for acquiring position information of the gravity ball and regulating the magnetism of the electromagnet according to the position information.

7. The ship lifting tool according to claim 1, characterized in that: A rubber layer is arranged on the surface of the coating groove close to the hanger, and the surface of the rubber layer is set as a smooth surface.

8. The ship lifting tool according to claim 1, characterized in that: The gravity ball is set to a solid ball structure, and the material is any one of iron, nickel and cobalt.

9. The ship lifting tool according to claim 1, characterized in that: The extended ends of the slide grooves are connected via arc-shaped grooves, and the gravity ball swings along the arc-shaped grooves.

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