Hydraulic lifting device for moving wind power tower drum

Abstract

The utility model relates to the field of hoisting equipment, in particular to a hydraulic lifting device for moving a wind power tower drum, which comprises a vehicle chassis and two lifting arms, and is characterized in that the lifting arms are connected to the vehicle chassis in a sliding manner along the horizontal direction, and the number of the lifting arms is two along the direction parallel to the sliding direction of the lifting arms; a hooking and lifting assembly is arranged on the suspension arm, and the hooking and lifting assembly is used for hooking the wind power tower drum. The lifting machine has the effect of expanding the application range of the lifting machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoisting equipment, and in particular to a hydraulic lifting device for moving a wind power tower. BACKGROUND

[0002] A wind power tower is a tower of a wind power generation device and mainly serves to support. A production process of the wind power tower generally includes the following steps: blanking by a numerical control cutting machine, forming by a plate rolling machine, welding of inner and outer longitudinal seams, roundness inspection, inner part installation, and product inspection, and then transporting to an installation site. The wind power tower has a height of 60-100 meters and is generally divided into multiple sections, which are then installed on site. The wind power tower has a conical structure and is made of steel. The diameter of the bottom of the wind power tower is generally about 5 meters, and the diameter of the top of the wind power tower is generally about 2.7 meters. Based on the size and material of the wind power tower, the wind power tower is usually moved and lifted by a large crane before being loaded onto a vehicle.

[0003] A hook is arranged below a traditional crane jib to hook an object. The contact position between the hook and the object is single, and the object is prone to rotating after being hooked. The wind power tower is not suitable for being vertically lifted due to its length, and therefore the traditional crane is not convenient for directly hoisting the wind power tower. Therefore, a crawler crane dedicated to wind power tower manufacturing is disclosed in a patent document CN104724613A, which includes a chassis and two jibs fixed on the chassis. The two jibs hook different positions of the wind power tower to stably lift the tower. However, the specifications of the wind power towers produced by actual wind power tower manufacturers are different, and the double jibs in the related art cannot adjust the distance between the two jibs according to the length of the wind power tower. The stability of the double jibs in the related art is different when lifting and moving wind power towers of different lengths, and therefore the application range of the double jibs in the related art needs to be further expanded. UTILITY MODEL CONTENT

[0004] In order to expand the application range of the crane in the related art, the present application provides a hydraulic lifting device for moving a wind power tower.

[0005] The hydraulic lifting device for moving a wind power tower provided by the present application adopts the following technical solution:

[0006] The hydraulic lifting device for moving a wind power tower includes a vehicle chassis and jibs. The jibs are slidingly connected to the vehicle chassis in a horizontal direction and are arranged in two in a direction parallel to the sliding direction of the jibs. A hooking and pulling assembly is arranged on the jibs, and the hooking and pulling assembly is used to hook the wind power tower.

[0007] By adopting the technical scheme, the sliding boom can adjust the distance between the two booms, thereby controlling the position of the hooking and pulling assembly hooking the wind power tower drum, facilitating adjustment according to the length of the tower drum, improving the stability of the wind power tower drum during lifting and moving of different specifications, and widening the application range of the lifting device. For example, when a longer wind power tower drum is transported or moved, the two booms can be slid away from each other, thereby making the wind power tower drum more stable during transportation.

[0008] Optionally, a sliding assembly is arranged between the boom and the vehicle base, the sliding assembly comprising a sliding rail and a sliding table, the sliding rail being fixed on the vehicle base, and the sliding table being provided with two sliding tables corresponding to the booms, the sliding tables being slidably connected to the sliding rail, and the booms being fixed on the sliding tables.

[0009] By adopting the technical scheme, the sliding table can drive the boom to move, thereby achieving the sliding connection between the boom and the vehicle base.

[0010] Optionally, the sliding rail is provided with two sliding rails arranged in parallel and at intervals, and the sliding table is slidably connected to the two sliding rails.

[0011] By adopting the technical scheme, the sliding table is slidably connected to the two sliding rails, thereby improving the stability of the sliding table during sliding.

[0012] Optionally, a driving assembly is arranged on the vehicle chassis, the driving assembly comprising a driving rod, the driving rod being threadedly connected to the sliding table, and rotating the driving rod can drive the two sliding tables to move closer to or away from each other.

[0013] By adopting the technical scheme, the driving rod is threadedly connected to the two sliding tables, thereby achieving synchronous movement of the two sliding tables. Meanwhile, the self-locking property of the threaded connection can limit the sliding table, thereby improving the stability of the sliding table during use of the boom.

[0014] Optionally, the hooking and pulling assembly comprises a hook, a pulling rope and a winding disc, the winding disc being rotatably connected to the sliding table, the hook being arranged below the end of the boom away from the ground, one end of the pulling rope being fixed to the side wall of the winding disc, and the other end of the pulling rope being fixedly connected to the hook, and rotating the winding disc can drive the hook to lift and lower.

[0015] By adopting the technical scheme, the hook is used for hooking the wind power tower drum, and the end of the pulling rope is fixed to the side wall of the winding disc, so that the winding disc can wind the pulling rope on the winding disc when the winding disc rotates, thereby driving the hook to lift and lower, and achieving lifting of the wind power tower drum.

[0016] Optionally, a linkage rod is arranged on the vehicle chassis, the linkage rod being rotatably connected to the vehicle chassis, and the two ends of the linkage rod being slidably arranged on the winding disc along the length direction of the linkage rod, and rotating the linkage rod can drive the two winding discs to rotate.

[0017] By adopting the technical scheme, the two winding discs are driven to rotate by the linkage rod, synchronous lifting of the two hooks is realized, and the linkage of the two winding discs can be continuously maintained when the distance between the two lifting arms changes due to the sliding connection of the linkage rod and the winding disc.

[0018] Optionally, a worm wheel is coaxially arranged on the linkage rod, and a worm is rotatably arranged on the vehicle chassis, and the worm wheel is engaged with the worm.

[0019] By adopting the technical scheme, the linkage rod is self-locked by the worm wheel and the worm, and the stability during lifting of the hook is improved.

[0020] To sum up, the present application has the following beneficial technical effects: the sliding lifting arm can adjust the distance between the two lifting arms, so that the hooks on the lifting arms can be hooked to different positions of the wind power tower drum, the movement and lifting of wind power tower drums of different specifications are facilitated, and the application range of the lifting device is expanded. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0022] Figure 2 is a schematic diagram of the overall structure of the embodiment of the present application. Figure 1 is an enlarged view of part A of the embodiment of the present application.

[0023] Figure 3 is a schematic diagram of the structure of the sliding assembly of the embodiment of the present application.

[0024] Reference signs: 1, vehicle chassis; 2, lifting arm; 3, hooking and pulling assembly; 31, hook; 32, pulling rope; 33, winding disc; 4, sliding assembly; 41, sliding rail; 42, sliding table; 5, driving assembly; 51, driving rod; 52, fixed block; 6, linkage rod; 7, linkage wheel set; 71, worm wheel; 72, worm. DETAILED DESCRIPTION

[0025] The following will be described in detail in combination with the accompanying drawings. Figures 1-3 The present application will be further described in detail.

[0026] The embodiment of the present application discloses a hydraulic lifting device for moving a wind power tower drum.

[0027] Reference will be made to the drawings. Figure 1 and Figure 2The utility model provides a kind of hydraulic lifting device for wind power tower cylinder movement, including vehicle chassis 1 and at least two hangers 2, hanger 2 is slidably connected on vehicle chassis 1 along horizontal direction, and two hangers 2 are spaced apart along the sliding direction of itself.Hooking and pulling assembly 3 is provided on hanger 2, and hooking and pulling assembly 3 is used to hook workpiece, the workpiece in the embodiment is wind power tower cylinder.In the process of moving wind power tower cylinder, hanger 2 can be moved according to the length of wind power tower cylinder, and the distance between two hangers 2 is adjusted.Meanwhile, wind power tower cylinder is hoisted by hooking and pulling assembly 3 on two hangers 2 and is hoisted synchronously in different positions of wind power tower cylinder, so that wind power tower cylinder is more stable after lifting, and the distance between two hangers 2 can be adjusted by sliding hanger 2, and the application range of lifting device is expanded.

[0028] Referring to Figure 1 And Figure 3 Slip assembly 4 is provided between vehicle chassis 1 and hanger 2, and slip assembly 4 includes two slide rails 41 and slide table 42, two slide rails 41 are spaced apart in parallel, and slide groove is formed in slide table 42 corresponding to slide rail 41, and slide table 42 is slidably connected on slide rail 41, and hanger 2 is fixed on slide table 42, so that the sliding connection between hanger 2 and vehicle chassis 1 is realized.

[0029] Referring to Figure 1 And Figure 3 Driving assembly 5 for driving hanger 2 to move is further provided on vehicle chassis 1, and driving assembly 5 includes driving rod 51 and fixed block 52.Fixed block 52 is provided as two, and two fixed blocks 52 are respectively fixed on two slide tables 42 and are located below slide table 42.Driving rod 51 is arranged along the sliding direction of slide table 42 and is rotatably connected on vehicle chassis 1.Driving rod 51 is driven by servo motor and is threadedly connected with slide table 42.Two sections of threads with opposite rotation directions are provided on driving rod 51 corresponding to the positions of two fixed blocks 52, and threaded holes are formed in fixed block 52 corresponding to driving rod 51, and fixed block 52 is threadedly sleeved on driving rod 51, and rotating driving rod 51 can drive two slide tables 42 to move in opposite directions, so that two hangers 2 are controlled to move close to or away from each other.

[0030] Referring to Figure 1 And Figure 3 Hooking and pulling assembly 3 includes hook 31, pulling rope 32 and winding disc 33, and winding disc 33 is rotatably connected on slide table 42.The end of hanger 2 away from ground is rotatably provided with fixed pulley, one end of pulling rope 32 is fixed on the side wall of winding disc 33, the other end extends downward through fixed pulley and is fixedly connected with hook 31.Through rotating winding disc 33, pulling rope 32 can be wound on winding disc 33, and then hook 31 is lifted, so that wind power tower cylinder is lifted.

[0031] Referring to Figure 1 And Figure 2The two winding discs 33 are coaxially arranged, a cylindrical linkage rod 6 is arranged on the vehicle chassis 1, the linkage rod 6 is of a cylindrical structure, the linkage rod 6 is arranged along the direction in which the sliding table 42 slides, and the linkage rod 6 is rotationally connected to the vehicle chassis 1 about the axis of the linkage rod 6. The two ends of the linkage rod 6 are respectively slidably arranged on the winding discs 33 along the length direction of the linkage rod 6. The linkage rod 6 can drive the two winding discs 33 to synchronously rotate by rotating, so that the two hooks 31 are synchronously lifted. In the embodiment, the linkage rod 6 is driven by a servo motor, a linkage wheel set 7 is arranged between the servo motor and the linkage rod 6, a worm wheel 71 is coaxially welded on the linkage rod 6, and a worm 72 is rotationally connected to the vehicle chassis 1 and fixedly connected to the output shaft of the servo motor. The output shaft of the servo motor can drive the worm 72 to rotate, and then drive the worm wheel 71 to rotate, so that the winding disc 33 is driven.

[0032] The implementation principle of the hydraulic lifting device for wind power tower moving in the embodiment of the application is as follows: when different specifications of wind power towers are lifted and moved, the distance between the two lifting arms 2 can be adjusted according to the length of the wind power tower, so that the lifting arm 2 can stably lift wind power towers of different specifications, and the application range of the lifting device is improved.

[0033] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A hydraulic lifting device for wind tower moving, comprising a vehicle chassis (1) and a boom (2), characterized in that, The cantilever (2) is slidably connected to the vehicle chassis (1) in the horizontal direction, and is provided in two directions parallel to the sliding direction of the cantilever (2); the cantilever (2) is provided with a hooking and pulling assembly (3), which is used for hooking the wind power tower drum.

2. The hydraulic lifting device for wind power tower moving according to claim 1, characterized in that, The cantilever (2) and the vehicle base are provided with a sliding assembly (4), the sliding assembly (4) comprises a sliding rail (41) and a sliding table (42), the sliding rail (41) is fixed on the vehicle base, the sliding table (42) is provided with two corresponding cantilevers (2), the sliding table (42) is slidably connected with the sliding rail (41), and the cantilever (2) is fixed on the sliding table (42).

3. The hydraulic lifting device for wind power tower moving according to claim 2, characterized in that, The sliding rail (41) is provided with two sliding rails (41), and the two sliding rails (41) are arranged in parallel and spaced apart, and the sliding table (42) is slidably connected with the two sliding rails (41).

4. The hydraulic lifting device for wind power tower moving according to claim 1, characterized in that, The vehicle chassis (1) is provided with a driving assembly (5), the driving assembly (5) comprises a driving rod (51), the driving rod (51) is threadedly connected with the sliding table (42), and rotating the driving rod (51) can drive the two sliding tables (42) to move close to or away from each other.

5. The hydraulic lifting device for wind tower moving according to claim 1, characterized in that, The hooking and pulling assembly (3) comprises a hook (31), a pulling rope (32) and a winding disc (33); the winding disc (33) is rotatably connected to the sliding table (42), the hook (31) is arranged below the end of the cantilever (2) away from the ground, one end of the pulling rope (32) is fixed on the side wall of the winding disc (33), and the other end is fixedly connected with the hook (31), and rotating the winding disc (33) can drive the hook (31) to rise and fall.

6. The hydraulic lifting device for wind tower moving according to claim 1, characterized in that, The vehicle chassis (1) is provided with a linkage rod (6), the linkage rod (6) is rotatably connected to the vehicle chassis (1), and the two ends of the linkage rod (6) are slidably arranged on the winding disc (33) along the length direction of the linkage rod (6), and rotating the linkage rod (6) can drive the two winding discs (33) to rotate.

7. The hydraulic lifting device for wind tower moving according to claim 6, characterized in that, The linkage rod (6) is coaxially fixed with a worm gear (71), the vehicle chassis (1) is rotatably provided with a worm (72), and the worm gear (71) is engaged with the worm (72).

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