Internal lifting device for wind power tower drum

Abstract

The utility model discloses a wind power tower tube internal lifting device which comprises a tower tube body, a fixing plate is fixedly installed on one side of the interior of the tower tube body, a motor is fixedly installed on the top of the fixing plate, a lead screw is fixedly installed on an output shaft of the motor, and one end of the lead screw is inserted into the bottom side of the interior of the tower tube body. A guide rod is fixedly installed on the bottom side in the tower drum body, a lifting plate is arranged on the outer side of the lead screw and the outer side of the guide rod jointly, the lead screw is in threaded connection with the lifting plate, the guide rod is in sliding connection with the lifting plate, a first protective fence is fixedly installed on the top of the lifting plate, and a first opening is formed in the front side of the first protective fence. A first closing door is hinged to one side of the first opening; the motor drives the lead screw to rotate so as to drive the lifting plate to ascend or descend under the guide of the guide rod, so that the lifting plate is driven to ascend or descend, the top of the lifting plate is protected through the first protective fence, safety is improved, and physical strength of workers is saved.

Description

Technical Field

[0001] The utility model relates to a lifting device, in particular to an internal lifting device of a wind power tower. Background Art

[0002] The wind turbine tower is the tower pole of wind power generation. It mainly plays a supporting role in the wind turbine generator set and absorbs the vibration of the set. The production process of the wind turbine tower is generally as follows: CNC cutting machine unloads, thick plates need to be beveled, and the plate rolling machine rolls the plate into shape, spot welding, positioning, and confirmation before welding the inner and outer longitudinal seams. After the roundness inspection, if there is a problem, a secondary rounding is performed. After the single-section cylinder is welded, the hydraulic group is used to assemble the roller frame for spot welding, the inner and outer circumferential seams are welded, and the straightness and other tolerances are checked. After the flange is welded, non-destructive testing and flatness inspection of the weld are performed, sandblasting, painting, internal parts installation and finished product inspection are completed, and then it is transported to the installation site.

[0003] At present, in the prior art, workers need to climb very high stairs to reach the wind turbine blades when inspecting wind turbine blades on wind turbine towers. This process is very dangerous and consumes a lot of physical strength of the workers. Therefore, this application proposes an internal lifting device for wind turbine towers to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide an internal lifting device for a wind turbine tower to solve the problem in the prior art proposed in the above background technology that workers need to climb very high stairs to reach the wind turbine blades when inspecting the wind turbine blades on the wind turbine tower, and this process is very dangerous and consumes a lot of physical strength of the workers.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wind power tower internal lifting device comprises a tower body, wherein a fixing plate is fixedly installed on one side of the interior of the tower body, a motor is fixedly installed on the top of the fixing plate, a screw rod is fixedly installed on the output shaft of the motor, one end of the screw rod is inserted into the inner bottom side of the tower body, a guide rod is fixedly installed on the inner bottom side of the tower body, a lifting plate is commonly provided on the outer sides of the screw rod and the guide rod, the screw rod is threadedly connected to the lifting plate, the guide rod is slidingly connected to the lifting plate, a first guardrail is fixedly installed on the top of the lifting plate, a first opening is provided on the front side of the first guardrail, a first closing door is hingedly provided on one side of the first opening, a second opening is provided on the rear side of the first guardrail, a second closing door is hingedly provided on the top of the lifting plate and at a position corresponding to the second opening, and a ladder is fixedly installed on the inner rear side of the tower body.

[0007] As a further solution of the utility model: one end of the screw rod is rotatably connected to the inner bottom side of the tower body.

[0008] As a further solution of the utility model: a baffle is fixedly installed on the top end of the guide rod.

[0009] As a further solution of the utility model: a limit plate is fixedly installed on the rear side of the lifting plate, and a second guardrail is symmetrically fixedly installed on the top of the limit plate.

[0010] As a further solution of the present invention: the second closed door is adapted to the second opening.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model drives the lead screw to rotate through a motor, thereby driving the lifting plate to rise or fall under the guidance of the guide rod, thereby driving the working construction to rise or fall, and the first guardrail is used to provide protection on the top of the lifting plate, thereby improving safety and saving physical strength of the workers.

[0013] The utility model opens the second closed door and then pushes it down to make it a horizontal pedal. When the second closed door remains horizontal, workers climb up the ladder through the pedal and are protected by the second guardrail during the movement, thereby facilitating the workers to enter the wind turbine blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a partial side sectional view of the present utility model.

[0016] Figure 3 It is a partial rear view of the present utility model.

[0017] 1. Motor; 2. Fixed plate; 3. Screw rod; 4. Tower body; 5. Lifting plate; 6. First closing door; 7. First guardrail; 8. Guide rod; 9. Ladder; 10. Second guardrail; 11. Second closing door; 12. Limit plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 3In the embodiment of the utility model, a wind power tower internal lifting device includes a tower body 4, a fixed plate 2 is fixedly installed on one side of the interior of the tower body 4, a motor 1 is fixedly installed on the top of the fixed plate 2, a screw rod 3 is fixedly installed on the output shaft of the motor 1, one end of the screw rod 3 is inserted into the inner bottom side of the tower body 4, a guide rod 8 is fixedly installed on the inner bottom side of the tower body 4, a lifting plate 5 is commonly arranged on the outer sides of the screw rod 3 and the guide rod 8, the screw rod 3 is threadedly connected to the lifting plate 5, the guide rod 8 is slidably connected to the lifting plate 5, a first guardrail 7 is fixedly installed on the top of the lifting plate 5, a first opening is opened on the front side of the first guardrail 7, a first closing door 6 is hingedly arranged on one side of the first opening, a second opening is opened on the rear side of the first guardrail 7, a second closing door 11 is hingedly arranged on the top of the lifting plate 5 and at a position corresponding to the second opening, and a ladder 9 is fixedly installed on the inner rear side of the tower body 4.

[0020] One end of the screw rod 3 is rotatably connected to the inner bottom side of the tower body 4 , thereby increasing the stability of the installation of the screw rod 3 .

[0021] A baffle is fixedly mounted on the top of the guide rod 8 to limit the movement of the lifting plate 5 .

[0022] A limit plate 12 is fixedly mounted on the rear side of the lifting plate 5, and a second guardrail 10 is symmetrically fixedly mounted on the top of the limit plate 12 to provide protection when climbing from the second closed door 11 to the ladder.

[0023] The second closing door 11 is matched with the second opening.

[0024] The motor 1 is electrically connected to an external switch through a wire, and the worker communicates with other workers through wireless communication equipment to control the start and stop of the motor 1.

[0025] The working principle of the utility model is:

[0026] When the utility model is in use, one enters the interior of the tower body 4 through the sealing door on the front side of the wind turbine tower, then opens the first closed door 6 to enter the top of the lifting plate 6, closes the first closed door 6, starts the motor 1, and the motor 1 drives the screw rod 3 to rotate, thereby driving the lifting plate 5 to rise under the guidance of the guide rod 8. During the rising process, it is protected by the first guardrail 7. When it reaches the upper part of the interior of the tower body 4 and corresponds to the position of the ladder 9, the second closed door 11 is pushed open from the inside to the outside. After the second closed door 11 is opened, the second closed door 11 becomes a horizontal pedal under the action of the limit plate 12, and is moved to the ladder 9 through the pedal. After the safety buckle is fastened, climb to the inside of the blade through the ladder 9 to inspect the blade. After the inspection is completed, return to the lifting plate 5 through the ladder 9, and close the second closed door 11 through the handle on the inside of the second closed door 11. Start the motor 1 to drive the lifting plate 5 to descend to the lowest point.

[0027] 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 wind power tower internal lifting device, comprising a tower body (4), characterized in that: A fixing plate (2) is fixedly installed on one side of the interior of the tower body (4), a motor (1) is fixedly installed on the top of the fixing plate (2), a screw rod (3) is fixedly installed on the output shaft of the motor (1), one end of the screw rod (3) is inserted into the inner bottom side of the tower body (4), a guide rod (8) is fixedly installed on the inner bottom side of the tower body (4), a lifting plate (5) is provided on the outer sides of the screw rod (3) and the guide rod (8), the screw rod (3) is threadedly connected to the lifting plate (5), the guide rod (8) is slidably connected to the lifting plate (5), a first guardrail (7) is fixedly installed on the top of the lifting plate (5), a first opening is provided on the front side of the first guardrail (7), a first closing door (6) is hingedly provided on one side of the first opening, a second opening is provided on the rear side of the first guardrail (7), a second closing door (11) is hingedly provided on the top of the lifting plate (5) and at a position corresponding to the second opening, and a ladder (9) is fixedly installed on the inner rear side of the tower body (4).

2. The internal lifting device of a wind turbine tower according to claim 1, characterized in that: One end of the screw rod (3) is rotatably connected to the inner bottom side of the tower body (4).

3. The internal lifting device of a wind turbine tower according to claim 1, characterized in that: A baffle is fixedly mounted on the top end of the guide rod (8).

4. The internal lifting device of a wind turbine tower according to claim 1, characterized in that: A limiting plate (12) is fixedly mounted on the rear side of the lifting plate (5), and a second guardrail (10) is symmetrically fixedly mounted on the top of the limiting plate (12).

5. The internal lifting device of a wind power tower according to claim 1, characterized in that: The second closing door (11) is adapted to the second opening.

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