Counterweight hoisting device of ship loader

Abstract

The utility model relates to the technical field of hoisting devices, and discloses a ship loader counterweight hoisting device which comprises two supports, a cross rod fixedly connected between the two supports and a counterweight block arranged at the bottom end of the cross rod, hoisting assemblies are symmetrically arranged on the top face of the cross rod, connecting plates are symmetrically and fixedly connected to the side wall of the cross rod, and the connecting plates are fixedly connected to the top face of the cross rod. The side wall of each connecting plate is fixedly connected with two connecting frames, and an anti-falling steel wire rope is hung on each connecting frame. After the chain block is hung, the balance weight can be vertically hoisted, hoisting is easy, the stress point is right during pulling, the chain block cannot be excessively abraded and damaged, the hoisting assembly is integrally welded to the upper portion of the portal frame, stress is balanced, the situation of unwelded stress cannot be caused, the first hoisting lug is made of a rectangular square tube with the size of 100 * 200 * 10 mm and a steel plate with the thickness of 20 mm, and the hoisting assembly is simple in structure and convenient to use. The requirement for hoisting the balancing weight is completely met, and after transformation, only four hoists need to be hung, two repairmen alternately pull the balancing weight diagonally, and the hoisting can be completed within 15 minutes.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a ship loader counterweight lifting device. Background Art

[0002] Ship loader is a large bulk material machine used for loading at bulk material docks. Generally, ship loader consists of arm belt conveyor, transition belt conveyor, telescopic chute, tail car, running device, gantry, tower, pitch device, slewing device, etc. When lifting heavy objects, it is necessary to add counterweight blocks at the rear to coordinate the front and rear balance of the boom during the lifting process. Therefore, the counterweight blocks are generally heavier.

[0003] The cantilever counterweight of a certain type of ship loader consists of 4 steel wire ropes as the anti-falling wire ropes of the counterweight. Lifting ears are set at the four corners of the counterweight, and double lifting ears are arranged on both sides of the gantry. The anti-collision wire rope is installed in an oblique pull manner. The counterweight needs to be lifted every time the conveyor belt is replaced or the drum bearing is replaced for other repairs.

[0004] However, there are still some shortcomings when using it. For example, to lift the counterweight, the anti-fall wire rope needs to be removed, and four 5t hand hoists are hung at the original lifting point, all of which are tilted. Crooked and tilted lifting is an illegal operation. The force point is not straight when pulling it up, which will cause excessive wear and damage to the hand hoist. A larger hand hoist needs to be replaced, and lifting the counterweight is time-consuming and labor-intensive.

[0005] Therefore, we propose a ship loader counterweight lifting device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a ship loader counterweight lifting device to solve the problem proposed in the above-mentioned background technology that lifting the counterweight requires disassembling the anti-falling wire rope, and hanging 4 5t hand winches at the original lifting point, all of which are slanted. Crooked and slanted lifting is an illegal operation, and the force point is not correct when pulling it up, which will cause excessive wear and damage to the hand winch, and it is necessary to replace it with a larger hand winch, and lifting the counterweight is time-consuming and labor-intensive.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ship loader counterweight lifting device, comprising two brackets, a cross bar fixedly connected between the two brackets and a counterweight block arranged at the bottom end of the cross bar, the top surface of the cross bar is symmetrically provided with lifting components, the side walls of the cross bar are symmetrically fixedly connected with connecting plates, the side walls of each connecting plate are fixedly connected with two connecting frames, and each connecting frame is hung with an anti-falling wire rope.

[0008] Preferably, the lifting assembly comprises two square tubes, and both ends of each of the square tubes are fixedly connected with a first lifting ear.

[0009] Preferably, each of the square tubes is welded to the top surface of the cross bar.

[0010] Preferably, each of the first lifting ears and the lifting point corresponding to the counterweight block are arranged in a vertical state.

[0011] Preferably, an inner hole is formed on the side wall of each of the first lifting ears.

[0012] Preferably, the four corners of the counterweight block are fixedly connected with second lifting ears, and one end of the anti-falling wire rope is fixedly connected to the corresponding second lifting ear.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This utility model relates to a ship loader counterweight lifting device. After the hand chain hoist is hung, the counterweight can be lifted vertically, and the lifting is relatively easy;

[0015] 2. The utility model relates to a ship loader counterweight lifting device, in which the lifting assembly is integrally welded above the gantry, and the force is balanced, and the welding will not be opened due to the force;

[0016] 3. The present invention relates to a ship loader counterweight lifting device, which uses a 100*200*10mm rectangular square tube and a 20mm thick steel plate to make a lifting lug, which fully meets the requirements of lifting the counterweight device (the counterweight device is 12t);

[0017] 4. The utility model relates to a ship loader counterweight lifting device. Before the modification, four repairmen were required to pull four 5t hand-pulled hoists synchronously to lift the counterweight. All of them were inclined and the anti-fall wire rope needed to be disassembled. The whole operation took more than one hour, and the inclined hoist was very laborious. The hoist was broken. After the modification, only four hoists need to be hung up, and two repairmen pull them diagonally alternately, which can be completed in 15 minutes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a ship loader counterweight hoisting device proposed by the utility model;

[0019] Figure 2 This is a structural schematic diagram of a lifting component part of a ship loader counterweight lifting device proposed by the utility model;

[0020] Figure 3 The utility model is a schematic structural diagram of a counterweight block part in a counterweight hoisting device for a ship loader.

[0021] In the figure: 1, bracket; 2, cross bar; 3, lifting assembly; 31, square tube; 32, first lifting eye; 321, inner hole; 4, connecting plate; 5, connecting frame; 6, anti-fall wire rope; 7, counterweight block; 8, second lifting eye. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] See also Figure 1-Figure 3 A ship loader counterweight lifting device comprises two brackets 1, a cross bar 2 fixedly connected between the two brackets 1 and a counterweight block 7 arranged at the bottom end of the cross bar 2, a lifting assembly 3 is symmetrically arranged on the top surface of the cross bar 2, a connecting plate 4 is symmetrically fixedly connected to the side wall of the cross bar 2, two connecting frames 5 are fixedly connected to the side wall of each connecting plate 4, and an anti-falling wire rope 6 is hung on each connecting frame 5.

[0025] The lifting assembly 3 includes two square tubes 31, and both ends of each square tube 31 are fixedly connected with a first lifting lug 32. The first lifting lug 32 is made of a rectangular square tube 31 of 100*200*10mm and a steel plate of 20mm thickness, which fully meets the requirements of lifting the counterweight device.

[0026] Each square tube 31 is welded to the top surface of the crossbar 2, and the lifting assembly 3 is welded as a whole above the door frame, so that the force is more balanced during use, thereby preventing the weld from opening due to the force.

[0027] Each first lifting lug 32 is arranged in a vertical position with respect to the lifting point corresponding to the counterweight block 7, so that the overall height of the lifting device does not affect the rotation of the cantilever of the ship loader, and the force point is relatively straight when pulling up, which will not cause excessive wear and damage to the hand chain hoist.

[0028] An inner hole 321 is formed on the side wall of each first lifting ear 32 , and the inner hole 321 has a size of 5*8 mm.

[0029] The four corners of the counterweight block 7 are fixedly connected with second lifting ears 8 , and one end of the anti-falling wire rope 6 is fixedly connected to the corresponding second lifting ear 8 .

[0030] In this embodiment: the lifting component 3 uses a 100*200*10mm rectangular square tube 31 to make the overall frame, each tube is 80cm long, and the first lifting ears 32 are made of 20mm thick steel plates on both sides. The size of the first lifting ear 32 is 380*200mm, and the inner hole 321 of the first lifting ear 32 is 5*8mm. A single first lifting ear 32 can bear a load of 20t and can be directly hung with a hand winch.

[0031] Working principle: When the counterweight 7 needs to be lifted for repairs such as replacing the conveyor belt or replacing the roller bearing, the staff will hang the hand winch on the first lifting eye 32. Compared with the method before the transformation, which required 4 repairmen to pull 4 5t hand winches synchronously to lift the counterweight, and all of them were inclined and laborious, and the whole operation took more than 1 hour, after the transformation, only 2 repairmen are needed to use the diagonal alternating pulling method to vertically lift the counterweight 7. It is easier to lift and can be completed within 15 minutes. In addition, the force point when pulling is more correct, which will not cause excessive wear and damage to the hand winch. During use, since the lifting assembly 3 is welded as a whole above the gantry, its force is more balanced, thereby avoiding the situation of force-induced welding. The first lifting eye 32 and the lifting point corresponding to the counterweight 7 remain in a vertical state, and the overall height of the lifting device does not affect the rotation of the loader cantilever.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ship loader counterweight hoisting device, comprising two brackets (1), a crossbar (2) fixedly connected between the two brackets (1), and a counterweight block (7) arranged at the bottom end of the crossbar (2), characterized in that: A lifting assembly (3) is symmetrically arranged on the top surface of the cross bar (2), and a connecting plate (4) is symmetrically fixedly connected to the side wall of the cross bar (2). Two connecting frames (5) are fixedly connected to the side wall of each connecting plate (4), and an anti-falling wire rope (6) is hung on each connecting frame (5).

2. A ship loader counterweight hoisting device according to claim 1, characterized in that: The lifting assembly (3) comprises two square tubes (31), and both ends of each square tube (31) are fixedly connected to a first lifting ear (32).

3. A ship loader counterweight hoisting device according to claim 2, characterized in that: Each of the square tubes (31) is welded to the top surface of the cross bar (2).

4. A ship loader counterweight hoisting device according to claim 2, characterized in that: Each of the first lifting ears (32) is arranged in a vertical state with respect to a lifting point corresponding to the counterweight (7).

5. A ship loader counterweight hoisting device according to claim 3, characterized in that: An inner hole (321) is formed on the side wall of each of the first lifting ears (32).

6. A ship loader counterweight hoisting device according to claim 1, characterized in that: The four corners of the counterweight block (7) are all fixedly connected to second lifting ears (8), and one end of the anti-falling steel wire rope (6) is fixedly connected to the corresponding second lifting ear (8).

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