Anti-kink rigid ear device

Abstract

This utility model discloses an anti-kink rigid lifting lug device, belonging to the field of lifting lug technology. It includes a connecting pipe and steel pipes respectively installed at both ends of the connecting pipe. Lifting lugs are installed on both steel pipes, and welding plates are provided on the inner side of each lifting lug. Two mounting holes are provided on the lifting lugs, with a bearing fixedly installed in the upper mounting hole. This utility model allows the outer wall of the welding plate to be flush with the outermost derrick of the vertical shaft. Two upper steel plates of the welding plate are welded to the outer crossbeam of the vertical shaft derrick, and the lower steel plate is welded to the side wall of the outer vertical beam. During welding, care is taken to ensure that the center line of the upper and lower mounting holes of the lifting lugs is parallel to the vertical beam of the vertical shaft derrick. The lifting buckle on the pulley block is installed in the bearing on the lifting lug. Because the lifting lug is welded and fixed to the steel pipe, it provides support on both sides and is in a rigid connection, preventing the vertical shaft derrick from lateral deflection during lifting. This ensures that the upper and lower pulley blocks are subjected to vertical force in the same direction, preventing the lower pulley block from twisting under force.

Description

Technical Field

[0001] This utility model relates to a lifting lug device, and more particularly to an anti-kink rigid lifting lug device, belonging to the field of lifting lug technology. Background Technology

[0002] The installation of coal mine vertical shaft hoisting systems is inseparable from the assembly and hoisting of shaft opening frames. Since the main beams and columns of the frame are all made of H-beams, it is not easy to weld large-tonnage rigid lifting lugs. When hoisting by using wire ropes to loop the car changer, the pulley block is prone to rotation during the stress process, causing multiple strands of wire rope in the pulley block to twist together, which affects the hoisting. Utility Model Content

[0003] The main purpose of this utility model is to solve the problem that when hoisting a vertical shaft frame, it is necessary to use lifting lugs for hoisting. The welding of the lifting lugs affects the hoisting of the vertical shaft frame and is prone to kinking of the wire rope in the pulley block, which affects the hoisting operation. Therefore, this utility model provides a rigid lifting lug device to prevent kinking.

[0004] The objective of this utility model can be achieved by adopting the following technical solution:

[0005] A rigid lifting lug device for preventing kinking includes a connecting pipe and steel pipes respectively disposed at both ends of the connecting pipe. Lifting lugs are installed on both steel pipes. Welded plates are provided on the inner side of both lifting lugs. Two mounting holes are provided on each lifting lug. A bearing is fixedly installed in the upper mounting hole, and a welded liner is installed in the lower mounting hole.

[0006] Furthermore, a reinforcing frame is fixedly connected to the lower end of the connecting pipe.

[0007] Furthermore, bolt holes for positioning are provided at the lower part of both steel pipes and on the reinforcing frame.

[0008] Furthermore, both of the steel pipes have grooves at their outer ends.

[0009] Furthermore, a fixing plate is installed inside the card slot.

[0010] Furthermore, one side of the slot is provided with multiple positioning blocks fixed to the outer wall of the steel pipe.

[0011] Furthermore, the outer wall of the steel pipe is welded with a welding plate.

[0012] Furthermore, the welding plate is composed of three steel plates, two of which are located on the upper part of the steel pipe and one is located on the lower part of the steel pipe.

[0013] The beneficial technical effects of this utility model are as follows: According to the anti-kink rigid lifting lug device of this utility model, the dimensions of the vertical shaft frame are adjusted and fixed. Then, the welding position of the vertical shaft is selected so that the outer wall of the welding plate is flush with the outermost edge of the shaft frame. Two upper steel plates of the welding plate are welded to the outer horizontal beam of the shaft frame, and the lower steel plate is welded to the side wall of the outer vertical beam, ensuring effective fixation. After the welding plates on both steel pipes are welded accordingly, the lifting lugs are welded to their corresponding positions, ensuring a firm weld between the outer wall of the steel pipe and the inner lining of the lifting lug. Damn, when welding, make sure the center line of the upper and lower assembly holes of the lifting lug is parallel to the vertical beam of the shaft frame. After welding, install the fixing plate with fixing bolts, and install the lifting buckle on the pulley block into the bearing on the lifting lug. Since the lifting lug is welded and fixed to the steel pipe, it supports both sides and is in a rigid connection, which prevents the shaft frame from deflecting left and right when being lifted. At the same time, the cooperation between the bearing and the lifting buckle prevents the lifting lug from not being able to rise vertically with the tension, which would cause friction between the lifting buckle and the lifting lug and affect the lifting. This ensures that the upper and lower pulley blocks are subjected to vertical force in the same direction, which can prevent the lower pulley block from being twisted by the force. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0015] Figure 2 This is a side view of the overall structure according to a preferred embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of a connecting pipe structure according to a preferred embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of a lifting lug structure according to a preferred embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of a steel pipe structure according to a preferred embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of a welding plate structure according to a preferred embodiment of the present invention.

[0020] In the diagram: 1. Steel pipe; 2. Connecting pipe; 3. Welded plate; 4. Lifting lug; 5. Fixing plate; 6. Positioning block; 7. Reinforcing frame; 8. Bearing. Detailed Implementation

[0021] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0022] like Figures 1-6As shown, the anti-kink rigid lifting lug device provided in this embodiment includes a connecting pipe 2 and steel pipes 1 respectively set at both ends of the connecting pipe 2. Lifting lugs 4 are installed on both steel pipes 1, and welding plates 3 are provided on the inner side of each lifting lug 4. Each lifting lug 4 has two assembly holes, with a bearing fixedly installed in the upper assembly hole and a welded liner installed in the lower assembly hole. A reinforcing frame 7 is fixedly connected to the lower end of the connecting pipe 2. Bolt holes for positioning are opened on the lower part of both steel pipes 1 and the reinforcing frame 7. A slot is provided at the outer end of both steel pipes 1, and a fixing plate 5 is installed inside the slot. Multiple positioning blocks 6 fixed to the outer wall of the steel pipe 1 are provided on one side of the slot. A welding plate 3 is welded to the outer wall of the steel pipe 1. The welding plate 3 consists of three steel plates, two of which are located on the upper part of the steel pipe 1 and one on the lower part. The connecting pipe 2, in conjunction with the steel pipe 1, adapts to the vertical shaft to be lifted. Adjustments are made according to the dimensions of the vertical shaft frame, and then the vertical shaft welding is selected. The welding plate 3 is positioned so that its outer wall is flush with the outermost derrick of the vertical shaft. Two upper steel plates of the welding plate 3 are welded to the outer crossbeam of the vertical shaft derrick, and the lower steel plate is welded to the side wall of the outer vertical beam to ensure effective fixation. After the welding plates 3 on the two steel pipes 1 are welded accordingly, the lifting lugs are welded to their corresponding positions to ensure a secure weld between the outer wall of the steel pipe 1 and the inner lining of the lifting lug. During welding, ensure that the center line of the upper and lower mounting holes of the lifting lug is parallel to the vertical beam of the vertical shaft derrick. After welding, the fixing plate is installed using fixing bolts, and the lifting buckle on the pulley block is installed in the bearing 8 on the lifting lug 4. Since the lifting lug 4 is welded and fixed to the steel pipe 1, it provides support on both sides and is in a rigid connection, preventing the vertical shaft derrick from deflecting left or right when being lifted. At the same time, the cooperation between the bearing and the lifting buckle prevents the lifting lug 4 from not being able to rise vertically with the tension, which would cause friction between the lifting buckle and the lifting lug and affect the lifting. This ensures that the upper and lower pulley blocks are subjected to vertical force in the same direction, thus preventing the lower pulley block from being twisted by the force.

[0023] In this embodiment, as Figures 1-6 As shown, the working process of the anti-kink rigid lifting lug device provided in this embodiment is as follows:

[0024] Step 1: Adjust the dimensions of steel pipe 1 and connecting pipe 2 according to the dimensions of the vertical shaft frame, and then fix them with fixing bolts;

[0025] Step 2: Weld welding plate 3 to the corresponding position so that it can be welded together with the horizontal beam and the outer vertical beam of the derrick.

[0026] Step 3: After welding and fixing, attach the lifting buckle on the pulley block to the mounting hole on the upper part of the lifting lug, and then lift.

[0027] In summary, in this embodiment, the anti-kink rigid lifting lug device is adjusted and fixed according to the dimensions of the shaft frame. Then, the shaft welding position is selected so that the outer wall of the welding plate 3 is flush with the outermost shaft frame. Two upper steel plates of the welding plate 3 are welded to the outer crossbeam of the shaft frame, and the lower steel plate is welded to the side wall of the outer vertical beam, ensuring effective fixation. After the welding plates 3 on both steel pipes 1 are welded accordingly, the lifting lugs are welded to their corresponding positions, ensuring a secure weld between the outer wall of the steel pipe 1 and the inner lining of the lifting lug. During welding, ensure that the center line of the upper and lower mounting holes of the lifting lug is parallel to the vertical beam of the shaft frame. After welding, install the fixing plate with fixing bolts and install the upper lifting buckle of the pulley block into the bearing 8 on the lifting lug 4. Since the lifting lug 4 is welded and fixed to the steel pipe 1, it supports both sides and is in a rigid connection, which prevents the shaft frame from deflecting left and right when being lifted. At the same time, the cooperation between the bearing and the lifting buckle prevents the lifting lug 4 from not being able to rise vertically with the pulling force, which would cause the lifting buckle to rub against the lifting lug and affect the lifting. This ensures that the upper and lower pulley blocks are subjected to vertical force in the same direction, which can prevent the lower pulley block from being twisted by force.

[0028] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A rigid lifting lug device for preventing kinking, characterized in that, It includes a connecting pipe (2) and steel pipes (1) respectively set at both ends of the connecting pipe (2). Each of the two steel pipes (1) is equipped with a lifting lug (4). The inner side of each of the two lifting lugs (4) is provided with a welding plate (3). Each lifting lug (4) is provided with two assembly holes, wherein the upper assembly hole is fixedly installed with a bearing, and the lower assembly hole is installed with a welding liner.

2. The anti-kink rigid lifting lug device according to claim 1, characterized in that, The lower end of the connecting pipe (2) is fixedly connected to a reinforcing frame (7).

3. The anti-kink rigid lifting lug device according to claim 2, characterized in that, Both of the steel pipes (1) and the reinforcing frame (7) have bolt holes for positioning.

4. The anti-kink rigid lifting lug device according to claim 3, characterized in that, Both of the steel pipes (1) have grooves at their outer ends.

5. The anti-kink rigid lifting lug device according to claim 4, characterized in that, A fixing plate (5) is installed inside the card slot.

6. The anti-kink rigid lifting lug device according to claim 5, characterized in that, One side of the slot is provided with multiple positioning blocks (6) fixed on the outer wall of the steel pipe (1).

7. The anti-kink rigid lifting lug device according to claim 6, characterized in that, The outer wall of the steel pipe (1) is welded with a welding plate (3).

8. The anti-kink rigid lifting lug device according to claim 7, characterized in that, The welding plate (3) is composed of three steel plates, two of which are located on the upper part of the steel pipe (1) and one is located on the lower part of the steel pipe.

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