Telescopic construction platform for wind power mixed tower

Abstract

The utility model relates to a construction platform, belongs to the technical field of wind power construction, and particularly relates to a telescopic construction platform for a wind power mixed tower, which comprises a center frame, a main beam, a pedal, a driving mechanism and a control mechanism, a telescopic beam capable of extending out of the outer end face of the fixed beam is slidably sleeved in the cavity of the fixed beam; the driving mechanism comprises a driver, a gear and a rack, the driver is fixedly arranged on the fixed beam, the rack is fixedly arranged on the bottom face of the telescopic beam in the length direction of the telescopic beam, the driver is connected with the gear and meshed with the rack, and the length of the main beam is adjusted through the gear and rack structure arranged between the fixed beam and the telescopic beam. And the control mechanism is electrically connected with the driver. The utility model has the advantages of simple structure and adjustable length of the main beam, and is suitable for wind power mixed tower construction.

Description

TECHNICAL FIELD

[0001] The utility model relates to a construction platform, in particular to a telescopic construction platform for wind power mixed tower. BACKGROUND

[0002] With the development of energy technology, various new energy is constantly replacing traditional energy. In recent years, wind energy resources have been rapidly developed due to its clean, environmentally friendly, safe and efficient characteristics. With the increasing height and weight of wind turbines, wind turbine towers exceeding 140 meters in height are gradually replaced by concrete towers instead of steel towers. Concrete towers are installed vertically in sections of different diameters, and installation personnel need to perform installation work on the construction platform in the tower. Since the tower is a conical tower with a certain difference in diameter from top to bottom, the tower generally needs to undergo 2-4 times of diameter change, so a single fixed-size construction platform cannot meet the installation work of the entire tower. In the traditional method, multiple construction platforms of different diameters are provided to meet the construction needs of the entire tower, but there is a waste of resources due to the large number of platforms. At present, the main beam of the construction platform is adjustable in length, and the radius of the construction platform is changed by manual operation. However, this operation method has the following problems: since the main beam is mostly made of metal and is heavy, it is laborious to manually extend or retract the main beam, and the adjustment efficiency is low. SUMMARY

[0003] To solve the above problems in the prior art, the utility model aims to provide a telescopic construction platform for wind power mixed tower to achieve the purpose of labor-saving and efficient adjustment of the radius of the construction platform.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a telescopic construction platform for wind power mixed tower, comprising a center frame, a main beam, a pedal, a driving mechanism and a control mechanism. The main beam is evenly distributed in a plane about the center frame in a radial manner, and the pedal is laid between the main beams to form a construction surface. The main beam comprises a fixed beam and an extension beam. The fixed beam is a square tube with a cavity. One end of the fixed beam is fixed to the center frame, and the other end of the fixed beam has a cavity in which the extension beam is slidably sleeved and can extend beyond the outer end surface of the fixed beam. The driving mechanism comprises a driver, a gear and a rack. The driver is fixed to the fixed beam. A strip-shaped opening is formed in the length direction of the bottom surface of the fixed beam. A rack is fixed to the bottom surface of the extension beam in the length direction and extends downward beyond the strip-shaped opening. The driver is connected to the gear which engages with the rack. The control mechanism is electrically connected to the driver.

[0005] As a limitation of the utility model: a plurality of rollers are arranged on the bottom wall of the cavity where the fixed beam and the extension beam are in contact.

[0006] As a limitation of the utility model: a plurality of positioning holes are formed on the fixed beam and the extension beam, and a positioning pin is inserted into the positioning hole.

[0007] As the limitation of the utility model: the fixed end of the telescopic beam away from the center frame is provided with a vertical support leg towards the ground, and a shock pad is fixedly arranged at the lower end of the support leg.

[0008] As the limitation of the utility model: the stroke range of the rack is 0m-3m.

[0009] As the limitation of the utility model: a passage is formed on the construction surface, and a safety fence is vertically arranged at the periphery of the platform and the passage.

[0010] As the limitation of the utility model: the control mechanism is connected with an external power supply, and the control mechanism comprises a main switch and separate switches for controlling the driving mechanisms.

[0011] As the limitation of the utility model: a lifting lug is fixedly arranged on the main beam.

[0012] As the limitation of the utility model: the main beam is made of alloy steel.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the adjustable mode of the length of the main beam is that the motor drives the gear and the rack to push the telescopic beam to extend or retract, which is more labor-saving and efficient than manual adjustment; the rolling shafts are arranged on the stress contact surfaces of the fixed beam and the telescopic beam, which can further improve the smoothness of the movement of the telescopic beam; after adjustment, the main beam is fixed through the positioning holes and the positioning pins, and multiple groups of positioning holes can be arranged to increase the adjustable range of the platform radius, which is different from the 2-4 fixed radii of the existing adjustable platform, can adapt to the inner diameters of tower drums of various sizes, and meets the installation of mixed towers in various inner diameter change conditions.

[0014] In summary, the utility model has the advantages of simple structure, labor-saving and high efficiency, the length of the main beam can be adjusted within a certain range, and is suitable for wind power mixed tower construction of various specifications. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0016] Figure 1 It is a top view structural schematic diagram of the utility model embodiment;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the main beam of the utility model embodiment.

[0018] In the figure: 1-center frame, 21-fixed beam, 22-telescopic beam, 31-fixed area, 32-movable area, 41-rack, 42-gear, 43-servo motor, 44-reducer, 5-strip-shaped opening, 6-support leg, 7-shock pad, 8-passage, 9-lifting lug. Detailed Implementation

[0019] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. It should be understood that the wind power hybrid tower telescopic construction platform described herein is a preferred embodiment, and is only used for illustration and explanation of this utility model, and does not constitute a limitation thereof.

[0020] The directional terms or positional relationships used in this utility model, such as "upper" and "lower," are based on the positional relationships in the accompanying drawings of this utility model. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model. Example

[0021] This implementation example Figure 1 , Figure 2 As shown, a retractable construction platform for wind power hybrid towers includes a central frame 1, a main beam, a footboard, a drive mechanism, and a control mechanism.

[0022] The platform consists of several main beams, which are evenly distributed radially on a plane about the central frame 1, forming the main frame of a circular construction platform. Steps are laid between the main beams to create a construction surface where workers can stand and place tools. In this embodiment, there are eight main beams, made of high-strength alloy steel. An access point 8 is provided on the construction surface to allow passageway access to the vertical climbing frame installed on the inner wall of the tower. Safety railings (not shown in the figure) are also erected around the platform and at the access point 8.

[0023] The main beam includes a fixed beam 21 and a telescopic beam 22. The fixed beam 21 is a square tube structure with an internal cavity. One end of the fixed beam 21 is fixed to the central frame 1, and the telescopic beam 22, which can extend out of the outer end face of the fixed beam 21, is slidably fitted inside the cavity at the other end. The lengths of both the fixed beam 21 and the telescopic beam 22 can be set according to the construction conditions. The area of ​​the construction surface formed by the treads laid between the fixed beams 21 is the fixed area 31, and the treads in this area are fixed during the use of the platform. The area of ​​the construction surface formed by the treads laid between the telescopic beams 22 is the movable area 32. The treads in this area need to be removed before the telescopic beams 22 extend or retract. After the length of the telescopic beams 22 reaches the required length, the treads in the movable area 32 are then laid. According to the construction requirements, the lengths of the fixed beam 21 and the telescopic beam 22 can be set according to the specifications of the external tower cylinder.

[0024] The driving mechanism and the control mechanism are used to realize the telescopic function of the telescopic beam 22. The driving mechanism is arranged on each main beam and comprises a driver, a rack 41 and a gear 42. The driver is fixed on the fixed beam 21, the rack 41 is fixed on the telescopic beam 22, the driver is connected with the gear 42 which is engaged with the rack 41, and the gear 42 and the rack 41 are used to drive the telescopic beam 22 to move along the radial direction of the platform. Specifically, a strip-shaped opening 5 is formed on the bottom surface of the fixed beam 21 along the length direction of the fixed beam 21, and the rack 41 is fixed on the bottom surface of the telescopic beam 22 along the length direction of the telescopic beam 22 and extends downward from the strip-shaped opening 5. The driver of the embodiment comprises a servo motor 43 and a speed reducer 44, and the servo motor 43 and the speed reducer 44 are realized by using the existing technology. Generally, in the construction, the telescopic beam 22 can be extended by 0m-3m, and the telescopic range of the telescopic beam 22 is determined by the length of the rack 41, that is, the stroke range of the rack 41 is 0m-3m. In the embodiment, the length of the fixed beam 21 is 4m, the maximum stroke of the rack 41 on the telescopic beam 22 is 2.5m, that is, the maximum length of the telescopic beam 22 that can be extended is 2.5m, that is, the minimum radius of the construction platform is 4m, and the maximum radius is about 6.5m. The control mechanism (not shown in the figure) is fixed on the center frame 1, the control mechanism is connected with an external power supply, and the control mechanism comprises a main switch and separate switches for controlling each driving mechanism. The control mechanism is electrically connected with each driving mechanism.

[0025] In order to improve the smoothness of the movement of the telescopic beam 22, a plurality of rollers (not shown in the figure) are arranged on the bottom wall in the cavity where the fixed beam 21 and the telescopic beam 22 are in contact, so that the telescopic beam 22 moves along the radial direction of the platform on the rollers; a plurality of positioning holes (not shown in the figure) are also formed on the fixed beam 21 and the telescopic beam 22, and a positioning pin (not shown in the figure) is arranged in the positioning hole. When the telescopic beam 22 moves to the appropriate position, the telescopic beam 22 is fixed by the positioning pin.

[0026] A support leg 6 is fixed on the end of the telescopic beam 22 away from the center frame 1 in the vertical direction and faces the ground. The support leg 6 is used to support the construction platform on the ground. A shock-absorbing pad 7 is fixed on the lower end of the support leg 6. The shock-absorbing pad 7 can be made of rubber material, so that the construction platform can be adapted to various ground environments and the impact force when contacting the ground can be reduced.

[0027] The platform needs to be lifted by a crane during use. In the embodiment, an ear 9 for being lifted by the crane is fixed on the main beam.

[0028] When the embodiment is used, the initial installation radius of the mixed tower drum is maximum, the size of the construction platform is adjusted on the ground according to requirements, the control mechanism is connected with the external power supply, the general switch is started, the separate switches of the various driving mechanisms are started in sequence, the servo motor 43 and the speed reducer 44 work, the gear 42 and the rack 41 work, the telescopic beam 22 reaches the position and is fixed by using the positioning pin, after the various telescopic beams 22 are adjusted to the positions, the switch is closed and the control mechanism is separated from the external power supply. The footboards are laid and fixed in the active area 32, and the safety fence is fixed along the periphery of the platform. With the construction, the tower drum generally experiences 2-4 times of radius reduction process, and each time of the radius reduction process can be performed according to the above steps.

[0029] It should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments, or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A wind power hybrid tower telescopic construction platform, characterized in that: The utility model relates to a construction platform, which comprises a center frame, main beams, a footboard, a driving mechanism and a control mechanism, the main beams are evenly distributed in a plane about the center frame, the footboard is laid between the main beams to form a construction surface, the main beam comprises a fixed beam and an extension beam, the fixed beam is a square tube with a cavity, one end of the fixed beam is fixed on the center frame, and the extension beam is slidably sleeved in the cavity at the other end of the fixed beam and can extend beyond the end surface of the fixed beam, the driving mechanism comprises a driver, a gear and a rack, the driver is fixed on the fixed beam, a strip-shaped opening is formed in the bottom surface of the fixed beam along the length direction, the rack is fixed on the bottom surface of the extension beam along the length direction and extends downward beyond the strip-shaped opening, the driver is connected with the gear engaged with the rack, and the control mechanism is electrically connected with the driver.

2. The wind power hybrid tower telescopic construction platform according to claim 1, characterized in that: A plurality of rollers are arranged on the bottom wall in the cavity where the fixed beam and the extension beam are in contact.

3. The wind power hybrid tower telescopic construction platform according to claim 2, characterized in that: A plurality of positioning holes are formed on the fixed beam and the extension beam, and a positioning pin is arranged in each positioning hole.

4. The wind power hybrid tower telescopic construction platform according to any one of claims 1-3, characterized in that: A support leg is fixed on the end of the extension beam away from the center frame in a vertical direction and faces the ground, and a shock-absorbing pad is fixed on the lower end of the support leg.

5. The wind power hybrid tower telescopic construction platform according to claim 4, characterized in that: The stroke range of the rack is 0m-3m.

6. The wind power hybrid tower telescopic construction platform according to claim 5, characterized in that: A passageway is formed on the construction surface, and a safety fence is erected around the periphery of the platform and at the passageway.

7. The wind power hybrid tower telescopic construction platform according to any one of claims 1-3, 5, 6, characterized in that: The control mechanism is connected with an external power supply, and the control mechanism comprises a main switch and separate switches for controlling the driving mechanisms.

8. The wind power hybrid tower telescopic construction platform according to claim 7, characterized in that: Lifting lugs are fixed on the main beams.

9. The wind power hybrid tower telescopic construction platform according to claim 8, characterized in that: The main beams are made of alloy steel.

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