Lifting device

Abstract

The invention discloses a lifting device, and relates to the technical field of hoisting equipment. The lifting device comprises a supporting table, a first support, a second support, a lifting frame and a hoisting mechanism, the first support and the hoisting mechanism are fixed to the supporting table, the second support is arranged in the first support, and the lifting frame is arranged in the second support. A rope in the hoisting mechanism is fixedly connected with the lifting frame through a plurality of pulleys and used for driving the lifting frame to move along the second support, and the second support moves along the first support. According to the pipeline lifting device, the first support, the second support and the lifting frame are matched, the two-stage lifting function can be achieved under driving of the hoisting mechanism, the lifting height of a pipeline can be increased, the stability of the lifting stroke is effectively enhanced, cooperation of multiple persons is not needed, time and labor are saved, and the working efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting equipment, in particular to a lifting device. BACKGROUND

[0002] In the installation engineering of coal mine underground wind and water pipeline, the pipeline hanging operation usually faces the complex working conditions of large roof beam height, narrow space and humid environment. The current widely used chain hoist lifting method has the following defects: first, manual operation of the chain hoist requires multiple people to cooperate, which is time-consuming and laborious, the single lifting height is limited, and the lifting point position needs to be adjusted repeatedly, which seriously affects the progress of the underground operation; second, the chain is prone to rust and jam due to high dust and high humidity in the underground, resulting in high failure rate, and the high-altitude manual operation has safety hazards such as pipeline falling and collision; third, the chain hoist has limited rated load, and when facing large-diameter pipelines, it needs to be lifted in sections, resulting in complicated installation process and long time consumption. SUMMARY

[0003] In view of the above problems of the current chain hoist lifting method, which requires multiple people to cooperate, is time-consuming and laborious, has low lifting height, and needs to adjust the lifting point position repeatedly, affecting the work efficiency, the present application provides a lifting device.

[0004] In order to solve the above technical problems, the present application adopts the following technical scheme:

[0005] A lifting device includes a table, a first support, a second support, a lifting frame and a winch mechanism, the first support and the winch mechanism are fixed on the table, the second support is arranged in the first support, and the lifting frame is arranged in the second support. The rope on the winch mechanism is fixedly connected with the lifting frame through a plurality of pulleys, for driving the lifting frame to move along the second support and the second support to move along the first support.

[0006] Further, the first support includes a first vertical column and a second vertical column arranged vertically, the first vertical column and the second vertical column are both fixed on the top of the table, and the inner walls of both are provided with a first sliding groove vertically. One side of the upper part between the first vertical column and the second vertical column is fixed with a cross beam, and the bottom of the cross beam is fixed with a first fixed pulley.

[0007] Further, the second support is rectangular, and a plurality of first sliding wheels are arranged on the outer walls of the left and right sides, and each first sliding wheel is arranged in the first sliding groove. Second sliding grooves are vertically arranged on the inner walls of the left and right sides of the second support.

[0008] Further, the top of the second support is provided with a second fixed pulley, and the bottom is provided with a third fixed pulley.

[0009] Further, the lifting frame is H-shaped, and a plurality of second sliding wheels are arranged on the outer walls of the left and right sides, and each second sliding wheel is arranged in the second sliding groove.

[0010] Further, a support beam is fixed to one side of the lifting frame, and L-shaped hook-shaped parts are fixed to the two sides of the support beam.

[0011] Further, a support table is fixed to the support table, and the winch mechanism is fixed to the top of the support table, and the winch mechanism comprises a hand winch, a speed reducer and a winding drum, and a fourth fixed pulley is arranged in front of the winding drum, and the fourth fixed pulley is fixed to the support table.

[0012] Further, the rope on the winding drum passes through the fourth fixed pulley, the first fixed pulley, the third fixed pulley and the second fixed pulley in sequence, and the end of the rope is fixedly connected with the lifting frame.

[0013] Further, a plurality of wheels are arranged at the bottom of the support table, a plurality of anti-toppling mechanisms are fixed to the front and rear sides of the support table, the anti-toppling mechanism comprises a sleeve and a supporting leg, the sleeve is fixedly connected with the support table, the supporting leg is arranged in the sleeve and moves up and down along the sleeve, and the supporting leg is connected with the sleeve through a pin shaft.

[0014] Further, a supporting mechanism is fixed to the left and right sides of the top of the support table, and the supporting mechanism comprises a supporting rod and a pair of supporting columns, and mounting holes are arranged in the supporting columns, and the supporting rod is inserted into the mounting holes.

[0015] The beneficial effects of the present application are: the first support, the second support and the lifting frame are matched, and two-stage lifting function can be realized under the driving of the winch mechanism, which not only improves the lifting height of the pipeline, but also effectively enhances the stability of the lifting stroke, and the cooperation of multiple people is not required, time and labor are saved, and the working efficiency is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure principle schematic diagram of one embodiment of the present application is shown.

[0017] Figure 2 The front view of Figure 1 is shown.

[0018] Figure 3 The other side view of Figure 1 is shown.

[0019] Figure 4 The top view of Figure 1 is shown.

[0020] Figure 5 The Figure 1Part structure diagram in the second support is shown.

[0021] Reference signs: 1, support; 2, sleeve; 3, leg; 4, support rod; 5, support column; 6, first support; 7, second support; 701, first sliding wheel; 702, second sliding groove; 8, lifting frame; 9, hook-shaped part; 10, support table; 11, winding drum; 12, fourth fixed pulley; 13, third fixed pulley; 14, first fixed pulley; 15, second fixed pulley; 16, wheel. DETAILED DESCRIPTION

[0022] The application discloses a lifting device, and a specific description is made on one embodiment of the application in combination with the drawings.

[0023] In combination Figure 1 And Figure 2 As shown in the drawings, a lifting device comprises a support 1, a first support 6, a second support 7, a lifting frame 8 and a hoisting mechanism, the first support 6 comprises first and second vertical columns arranged in a vertical direction, the bottom of each of the first and second vertical columns is fixedly connected to the top of the support 1, and the rear side of each of the first and second vertical columns is fixedly connected to the support 1 through a first connecting rod in an inclined shape, the first connecting rod is used for strengthening the structure of the first and second vertical columns to avoid the problem of tilting of the first and second vertical columns. First sliding grooves are formed in the inner walls of the left and right sides of the first and second vertical columns in a vertical direction, a cross beam is fixedly arranged on the rear side of the upper part between the first and second vertical columns, and a first fixed pulley 14 is fixedly arranged on the bottom of the cross beam. Figure 5 As shown in the drawings, the second support 7 is in a rectangular frame structure, two first sliding wheels 701 are arranged on the outer walls of the left and right sides of the second support 7, each first sliding wheel 701 is arranged in the first sliding groove, is used for reducing the friction force when the second support 7 moves along the first support 6, and facilitates the up-and-down movement of the second support 7 along the first support 6. Second sliding grooves 702 are formed in the inner walls of the left and right sides of the second support 7 in a vertical direction, a second fixed pulley 15 is arranged on the top of the second support 7, and a third fixed pulley 13 is arranged on the bottom of the second support 7. The lifting frame 8 is in an H-shaped frame structure, two second sliding wheels are arranged on the outer walls of the left and right sides of the lifting frame 8, each second sliding wheel is arranged in the second sliding groove 702, is used for reducing the friction force when the lifting frame 8 moves along the second support 7, and facilitates the up-and-down movement of the lifting frame 8 along the second support 7. A support beam is fixedly arranged on the front side of the lifting frame 8, and hook-shaped parts 9 in an L-shaped cross section are fixedly arranged on the left and right sides of the outer wall of the support beam.

[0024] In combination Figure 3 And Figure 4As shown, the support table 1 is further provided with a support table 10, the support table 10 is located at the rear side of the first support 6, and the support table 10 is fixedly connected with the side wall of the first connecting rod, and the bottom of the support table 10 is further fixedly provided with a plurality of inclined second connecting rods, and the support table 1 is fixedly connected with the plurality of second connecting rods. The winch mechanism is fixed on the support table 10, and the winch mechanism comprises a hand winch, a speed reducer and a winding drum 11, and the winding drum 11 is wound with a steel wire rope. One side of the speed reducer is connected with the hand winch, and the other side is connected with the winding drum 11. The front of the winding drum 11 is provided with a fourth fixed pulley 12, and the fourth fixed pulley 12 is fixed on the support table 10. The steel wire rope located on the winding drum 11 passes through the fourth fixed pulley 12, the first fixed pulley 14, the third fixed pulley 13 and the second fixed pulley 15 in sequence, and the end of the steel wire rope is fixedly connected with the lifting frame 8. The bottom of the support table 1 is provided with a plurality of wheels 16 for being pulled to move to a suitable position.

[0025] The front and rear sides of the support table 1 are fixedly provided with a plurality of anti-toppling mechanisms, the anti-toppling mechanism comprises a sleeve 2 and a support leg 3, the sleeve 2 is fixedly connected with the support table 1, and the support leg 3 is arranged in the sleeve 2 and moves up and down along the sleeve 2. The sleeve 2 is provided with a first pin hole, and the support leg 3 is provided with a plurality of second pin holes, the first pin hole cooperates with the second pin hole and fixes the support leg 3 and the sleeve 2 through a pin shaft. The left and right sides of the top of the support table 1 are fixedly connected with a supporting mechanism, the supporting mechanism comprises a support rod 4 and a pair of support columns 5, the support columns 5 are both provided with mounting holes, and the support rod 4 is inserted and matched with the mounting holes.

[0026] When in use, the lifting device is moved to a suitable position by means of the trailer, and then the support leg 3 is adjusted to a suitable position by moving along the sleeve 2, so that the support leg 3 is in contact with the ground and is fixed by means of the pin shaft, for supporting the support platform 1 and avoiding the problem of tilting. The staff moves the pipeline to the front side of the first support 6 by means of the forklift, and then the staff inserts the support rod 4 into the mounting hole of the two support columns 5, and the end of the support rod 4 protrudes below the pipeline. After the forklift places the pipeline on the end of the support rod 4, the staff rotates the hand winch by means of the handle, and the hand winch is connected with the winding drum 11 by means of the speed reducer, and gradually winds the steel wire rope on the winding drum 11. Then the steel wire rope is tightened, and gradually pulls the lifting frame 8 by means of the fourth fixed pulley 12, the first fixed pulley 14, the third fixed pulley 13 and the second fixed pulley 15, and makes the lifting frame 8 move upward along the second support 7, and the lifting frame 8 lifts the pipeline by means of the L-shaped hook 9 and separates from the support rod 4. When the lifting frame 8 moves to the top of the second support 7, the top of the lifting frame 8 will be in contact with the top of the second support 7, and as the steel wire rope continues to tighten, the second support 7 will continue to move upward along the first support 6 and lift the pipeline. When it is needed to descend, the handle of the hand winch is rotated in the opposite direction, so that the steel wire rope on the winding drum is gradually loosened, and the lifting frame can move downward along the second support, and the second support can move downward along the first support, so that the rapid descending function is realized. The two-stage lifting function is realized by the cooperation between the first support 6, the second support 7 and the lifting frame 8, which not only can effectively improve the lifting height, but also can significantly improve the stability of the lifting stroke.

[0027] Of course, the above description is not a limitation of the present application, and the present application is not limited to the above examples. Changes, modifications, additions or replacements made by the person skilled in the art within the essential scope of the present application shall also belong to the protection scope of the present application.

Claims

1. A lifting device, characterized in that: The invention comprises a supporting platform (1), a first bracket (6), a second bracket (7), a lifting frame (8) and a hoisting mechanism, wherein the first bracket (6) and the hoisting mechanism are fixed on the supporting platform (1), the second bracket (7) is arranged in the first bracket (6), and the lifting frame (8) is arranged in the second bracket (7); the rope on the hoisting mechanism is fixedly connected to the lifting frame (8) through a plurality of pulleys, and is used to drive the lifting frame (8) to move along the second bracket (7) and the second bracket (7) to move along the first bracket (6).

2. A lifting device according to claim 1, characterized in that: The first bracket (6) comprises a first column and a second column arranged in a vertical direction, the first column and the second column are both fixed on the top of the support platform (1), and the inner walls of both are provided with a first sliding groove in the vertical direction; A crossbeam is fixed on one side of the upper portion between the first column and the second column, and a first fixed pulley (14) is fixed on the bottom of the crossbeam.

3. A lifting device according to claim 2, characterized in that: The second bracket (7) is rectangular, and a plurality of first sliding wheels (701) are provided on the outer walls on both sides, and each of the first sliding wheels (701) is arranged in the first sliding groove; Second sliding grooves (702) are vertically provided on the inner walls on both the left and right sides of the second bracket (7).

4. A lifting device according to claim 3, characterized in that: A second fixed pulley (15) is provided at the top of the second bracket (7), and a third fixed pulley (13) is provided at the bottom.

5. A lifting device according to claim 3, characterized in that: The lifting frame (8) is H-shaped, and a plurality of second sliding wheels are provided on the outer walls on both sides, and each of the second sliding wheels is configured in the second sliding groove (702).

6. A lifting device according to claim 1, characterized in that: A support beam is fixed on one side of the lifting frame (8), and hook-shaped portions (9) with an L-shaped cross section are fixed on both sides of the support beam.

7. The lifting device according to claim 5, characterized in that: A support platform (10) is fixed on the support platform (1), and the hoisting mechanism is fixed on the top of the support platform (10). The hoisting mechanism includes a hand winch, a reducer and a drum (11). A fourth fixed pulley (12) is provided in front of the drum (11), and the fourth fixed pulley (12) is fixed on the support platform (10).

8. A lifting device according to claim 7, characterized in that: The rope on the drum (11) passes through the fourth fixed pulley (12), the first fixed pulley (14), the third fixed pulley (13) and the second fixed pulley (15) in sequence, and the end of the rope is fixedly connected to the lifting frame (8).

9. The lifting device according to claim 1, characterized in that: The bottom of the support platform (1) is provided with a plurality of wheels (16), and the front and rear sides of the support platform (1) are fixed with a plurality of anti-dumping mechanisms, and the anti-dumping mechanisms include a sleeve (2) and a support leg (3), the sleeve (2) is fixedly connected to the support platform (1), the support leg (3) is arranged in the sleeve (2), and moves up and down along the sleeve (2), and the support leg (3) is connected to the sleeve (2) through a pin shaft.

10. The lifting device according to claim 1, characterized in that: Supporting mechanisms are fixed on both left and right sides of the top of the support platform (1), and the supporting mechanisms include a support rod (4) and a pair of support columns (5). The support columns (5) are each provided with mounting holes, and the support rod (4) is plugged into and fitted with the mounting holes.

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