Variable-diameter concrete tower drum construction platform

Abstract

The utility model provides a variable diameter concrete tower drum construction platform relates to onshore wind power concrete tower drum technical field, variable diameter concrete tower drum construction platform includes fixed beam, movable beam, fixed cover plate and movable cover plate, a plurality of fixed beam one end is connected with each other, and the other end of a plurality of fixed beam is located on the same circumference, and the movable beam one end of the fixed cover plate is connected with the movable cover plate. A fixed cover plate is connected between any two adjacent fixed beams, the fixed beams and the movable beams are in one-to-one correspondence, each movable beam is telescopically connected to the corresponding fixed beam in the extending direction of the corresponding fixed beam, each fixed beam is provided with a first connecting part, each movable beam is provided with a second connecting part, and the first connecting parts are used for being connected with the second connecting parts; and a movable cover plate is detachably connected between any two adjacent movable beams. Compared with the prior art, the variable-diameter concrete tower drum construction platform is simple in structure, low in manufacturing cost and applicable to hoisting of drum sections with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of onshore wind power concrete towers, in particular to a variable diameter concrete tower construction platform. Background Art

[0002] As a clean energy technology, wind power generation has been widely used in the "Three Norths" region (Northwest, North China and Northeast China) with good wind resources in my country. As the development of the "Three Norths" region becomes increasingly saturated, wind power generation is developing inland. Due to the lower wind speed in inland areas and the increasing power of wind turbines, the diameter of the wind rotor is getting larger and the height of the tower is getting higher. At present, the tower height of domestic onshore wind turbines has reached 120m to 180m.

[0003] As the tower increases in height, the rigidity of the traditional steel tower is low, and the tower is prone to resonance, which in turn leads to damage. At present, a new type of steel-concrete hybrid tower structure system has been deeply studied and widely used. The system uses a concrete tower at the bottom and a steel tower at the top. The ratio of the height of the steel tower to the concrete tower is determined by its frequency and economy. This system can effectively improve the rigidity of the tower and ensure that the tower avoids resonance.

[0004] Concrete towers are generally prefabricated in sections and pieces. The larger diameter sections are prefabricated in 2 or 4 pieces, while the smaller diameter sections are prefabricated in a whole ring, and then transported to the site for assembly and hoisting. That is, the tower is divided into several sections along the height direction, prefabricated in the factory and transported to the site, assembled on a special assembly platform, and hoisted as a whole section after assembly. After hoisting, prestress is applied to the entire concrete tower section to form a whole.

[0005] After each concrete cylinder section is hoisted, the hook on the top of the cylinder section needs to be removed, the levelness of the top surface needs to be measured, steel gaskets need to be placed, epoxy structural adhesive needs to be applied, etc. Therefore, a construction platform is required during the hoisting process of the concrete cylinder section for workers to perform the above work.

[0006] However, since the concrete tower is a conical cylinder, multiple construction platforms of different sizes are often required along its height direction, which results in high construction costs. Utility Model Content

[0007] The problem to be solved by the utility model is: how to provide a concrete tower construction platform with good versatility.

[0008] The utility model provides a variable-diameter concrete tower construction platform, comprising: a fixed beam, a movable beam, a fixed cover plate and a movable cover plate, one ends of a plurality of the fixed beams are connected to each other, and the other ends of the plurality of the fixed beams are located on the same circumference, the fixed cover plates are respectively connected between any two adjacent fixed beams, the fixed beams correspond to the movable beams one by one, each movable beam is telescopically connected to the fixed beam along the extension direction of the corresponding fixed beam, a first connecting portion is provided on the fixed beam, and a second connecting portion is provided on the movable beam, and in the extension direction of the fixed beam, a plurality of the first connecting portions and / or the second connecting portions are provided, the first connecting portion is used to be connected to the second connecting portion, and the movable cover plates are respectively detachably connected between any two adjacent movable beams.

[0009] The variable diameter concrete tower construction platform provided by the utility model has, compared with the prior art, but is not limited to the following beneficial effects:

[0010] The variable diameter concrete tower construction platform of the utility model can be used to first move a certain distance outward relative to the fixed beam through the movable beam, and then the movable body can be fixed on the fixed body by connecting the second connecting part on the movable beam with the first connecting part at different positions on the fixed beam, or connecting the second connecting part at different positions on the movable beam with the first connecting part on the fixed beam. The above operation is used to adjust the overall diameter of the construction platform to adapt to concrete cylinder sections of different sizes, and then a suitable number of movable cover plates are installed on the movable beam in sequence, and then the construction platform can be adjusted to the inside of the tower by the lifting equipment, and then the workers can climb up to the construction platform from the inside of the tower by the ladder, wherein the fixed cover plate and the movable cover plate are used to support the workers, and then one end of the cover plate can be connected to the pre-buried lifting point of the cylinder section by the lifting rope. The other end is connected to the movable beam, so that the weight of the construction platform is borne by the lifting rope. Then the workers complete the corresponding leveling, gluing and other work on the construction platform. After hoisting the previous cylinder section, the construction platform is lifted to a certain height by the lifting equipment, so that the weight of the construction platform is borne by the lifting equipment. Then the lifting rope connected to the embedded lifting point of the cylinder section is released, and then the outermost movable cover is removed, and the second connection part on the movable beam is disconnected from the first connection part on the fixed beam. The movable beam is moved inward relative to the fixed beam for a certain distance, and then the second connection part on the movable beam is connected to the first connection part on the fixed beam. At this time, the workers temporarily retreat to the ladder and continue to lift the construction platform into the previous cylinder section by the lifting equipment. Repeat the above operation until the tower is hoisted. Finally, the construction platform is hoisted out of the tower. Compared with the prior art, the variable diameter concrete tower construction platform of the utility model has a simple structure and low manufacturing cost, and can be applied to the hoisting of cylinder sections of different diameters.

[0011] Optionally, a first lifting ear is provided on the upper surface of the fixed beam, and the first lifting ear is located at one end of the fixed beam close to the movable beam.

[0012] Optionally, a second lifting lug is provided at one end of the movable beam away from the fixed beam.

[0013] Optionally, the variable diameter concrete tower construction platform further includes a vertical pole, each of the movable beams is respectively connected to the vertical pole, the vertical pole is vertically arranged relative to the movable beam, and the vertical pole is located at one end of the movable beam away from the fixed beam.

[0014] Optionally, a third lifting lug is provided on the top of each of the vertical poles, and a safety rope is connected between any two adjacent third lifting lugs.

[0015] Optionally, the fixed beam has a cavity structure with an open end, one end of the movable beam extends into the cavity structure, and the movable beam is used to extend or contract within the fixed beam.

[0016] Optionally, a stiffening rib is provided at the bottom of the movable cover plate.

[0017] Optionally, the fixed cover plate has a fan-shaped structure.

[0018] Optionally, the upper surface of the fixed cover plate is provided with an anti-slip pattern.

[0019] Optionally, the first connection portion is a first positioning hole, the second connection portion is a second positioning hole, and the first positioning hole and the second positioning hole are used to be connected via a pin to fix the movable beam relative to the fixed beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a variable diameter concrete tower construction platform according to an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the structure of a variable diameter concrete tower construction platform according to an embodiment of the utility model Figure 1 ;

[0022] Figure 3 A schematic diagram of the structure of a variable diameter concrete tower construction platform according to an embodiment of the utility model Figure 2 .

[0023] Description of reference numerals:

[0024] 1. Fixed beam; 11. First connection part; 2. Movable beam; 21. Second connection part; 3. Fixed cover plate; 4. Movable cover plate; 41. Stiffening rib; 5. First lifting eye; 6. Second lifting eye; 7. Vertical pole; 8. Third lifting eye; 9. Safety rope. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the description of the present invention, the directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0029] Moreover, the Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis (that is, the direction of the arrow of the Z axis) represents the top, and the negative direction of the Z axis (that is, the direction opposite to the positive direction of the Z axis) represents the bottom.

[0030] It should also be noted that the aforementioned Z-axis representation is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] like Figures 1 to 2As shown, the variable diameter concrete tower construction platform of the utility model embodiment comprises: a fixed beam 1, a movable beam 2, a fixed cover plate 3 and a movable cover plate 4, one ends of the plurality of fixed beams 1 are connected to each other, and the other ends of the plurality of fixed beams 1 are located on the same circumference, the fixed cover plate 3 is respectively connected between any two adjacent fixed beams 1, the fixed beams 1 correspond to the movable beams 2 one by one, each movable beam 2 is telescopically connected to the fixed beam 1 along the extension direction of its corresponding fixed beam 1, a first connecting portion 11 is provided on the fixed beam 1, and a second connecting portion 21 is provided on the movable beam 2, and in the extension direction of the fixed beam 1, a plurality of the first connecting portion 11 and / or the second connecting portion 21 are provided, and the first connecting portion 11 is used to be connected to the second connecting portion 21, and the movable cover plate 4 is respectively detachably connected between any two adjacent movable beams 2.

[0032] In this embodiment, combined with the attached Figure 1 and attached Figure 2 As shown, a plurality of fixed beams 1 and a fixed cover plate 3 between any two adjacent fixed beams 1 form a circular construction platform with a fixed radius, and a plurality of movable beams 2 can be respectively extended outward by a certain distance relative to the plurality of fixed beams 1, so that the plurality of movable beams 2 and the movable cover plate 4 between any two adjacent movable beams 2 can extend the circular construction platform composed of the fixed beams 1 and the fixed cover plate 3 outward, so that the radius of the circular construction platform is larger to adapt to the size change of the tower radius, that is, the radius of the tower construction platform of this embodiment can be adjusted, and it has good versatility, which is conducive to the construction of tower structures such as conical towers whose radius size changes with height.

[0033] Specifically, when in use, the movable beam 2 can be first extended outward relative to the fixed beam 1 for a certain distance, and then the second connecting part 21 on the movable beam 2 is connected to the first connecting part 11 at different positions on the fixed beam 1, or the second connecting part 21 at different positions on the movable beam 2 is connected to the first connecting part 11 on the fixed beam 1 to fix the movable body on the fixed body. The above operation is used to adjust the overall diameter of the construction platform to adapt to concrete cylinder sections of different sizes. Then, a suitable number of movable cover plates 4 are installed on the movable beam 2 in sequence, and then the construction platform can be adjusted to the inside of the tower through the lifting equipment. Then, the workers can climb up to the construction platform from the ladder inside the tower, where the fixed cover plate 3 and the movable cover plate 4 are used to support the workers. Then, one end of the movable cover plate 4 can be connected to the pre-buried lifting point of the cylinder section through a lifting rope, and the other end can be connected to the movable cover plate 4 through a lifting rope. On the movable beam 2, the weight of the construction platform is borne by the lifting rope, and then the workers complete the corresponding leveling, gluing and other work on the construction platform. After hoisting the previous cylinder section, the construction platform is lifted to a certain height by the lifting equipment, so that the weight of the construction platform is borne by the lifting equipment, and then the lifting rope connected to the embedded lifting point of the cylinder section is released, and then the outermost movable cover plate 4 is removed, and the second connection part 21 on the movable beam 2 is disconnected from the first connection part 11 on the fixed beam 1, and the movable beam 2 is moved inwardly relative to the fixed beam 1 for a certain distance, and then the second connection part 21 on the movable beam 2 is connected to the first connection part 11 on the fixed beam 1. At this time, the workers temporarily retreat to the ladder and continue to lift the construction platform into the previous cylinder section by the lifting equipment. Repeat the above operation until the tower is hoisted. Finally, the construction platform is hoisted out of the tower. Compared with the prior art, the variable diameter concrete tower construction platform of the utility model has a simple structure and low manufacturing cost, and can be applied to the hoisting of cylinder sections of different diameters.

[0034] It should be noted that, in conjunction with the Figure 1 As shown, the number of fixed beams 1 of the construction platform can be 6, and the 6 fixed beams 1 are evenly arranged along the circumference, and the 6 fixed beams 1 are connected by welding at the center of the construction platform. Six fixed cover plates 3 are arranged on the upper side of the above 6 fixed beams 1, and the fixed cover plates 3 can be 3mm thick patterned steel cover plates, and the fixed cover plates 3 are fixed on the fixed beams 1 by spot welding.

[0035] In addition, the first connection part 11 and the second connection part 21 can be threaded holes or pin holes. After the movable beam 2 moves into position relative to the fixed beam 1, the first connection part 11 and the second connection part 21 can be connected in sequence by bolts or pins, so that the movable beam 2 is fixed to the fixed beam 1. Of course, the first connection part 11 and the second connection part 21 are not limited to hole structures, for example, they can also be ear plate structures, as long as the movable beam 2 can be fixed to the fixed beam 1 after moving into position.

[0036] Optionally, a first lifting lug 5 is provided on the upper surface of the fixed beam 1 , and the first lifting lug 5 is located at one end of the fixed beam 1 close to the movable beam 2 .

[0037] In this embodiment, combined with the attached Figure 2 As shown, the fixed beam 1 can be a square steel tube, and the upper surface of the fixed beam 1 (attached Figure 2 The first lifting lug 5 can be connected to the fixed beam 1 in the positive direction of the Z axis by welding, and the first lifting lug 5 is located at one end of the fixed beam 1 close to the movable beam 2. The first lifting lug 5 is used to connect with a lifting device (such as a crane) to lift the construction platform to the inside of the tower.

[0038] Optionally, a second lifting lug 6 is provided at one end of the movable beam 2 away from the fixed beam 1 .

[0039] In this embodiment, combined with the attached Figure 2 As shown, a second lifting lug 6 can be connected to one end of the movable beam 2 away from the fixed beam 1 by welding, wherein the second lifting lug 6 is used to be connected to the embedded lifting point of the cylinder segment by a lifting rope, so that the weight of the construction platform is borne by the lifting rope.

[0040] Optionally, the variable diameter concrete tower construction platform further includes a vertical pole 7, each of the movable beams 2 is respectively connected to the vertical pole 7, the vertical pole 7 is vertically arranged relative to the movable beam 2, and the vertical pole 7 is located at one end of the movable beam 2 away from the fixed beam 1.

[0041] A third lifting lug 8 is provided on the top of each of the vertical poles 7 , and a safety rope 9 is connected between any two adjacent third lifting lugs 8 .

[0042] In this embodiment, combined with the attached Figure 2 As shown, the vertical rod 7 can be vertically connected to the movable beam 2 by welding, and the vertical rod 7 is located at the end of the movable beam 2 away from the fixed beam 1, and the top of each vertical rod 7 (attached Figure 2 In the positive direction of the middle Z axis), the third lifting ears 8 can be connected by welding, and any two adjacent third lifting ears 8 are used to connect safety ropes 9, wherein the safety ropes 9 are used to protect the workers standing on the fixed cover plate 3 and the movable cover plate 4.

[0043] Optionally, the fixed beam 1 has a cavity structure with an open end, one end of the movable beam 2 extends into the cavity structure, and the movable beam 2 is used to extend or contract in the fixed beam 1.

[0044] In this embodiment, the fixed beam 1 may be a rectangular hollow beam having a cavity structure with an open end. The shape of the movable beam 2 is adapted to the cavity structure. The movable beam 2 can extend or contract within the fixed beam 1 .

[0045] Optionally, a stiffening rib 41 is provided at the bottom of the movable cover plate 4 .

[0046] In this embodiment, combined with the attached Figure 3 As shown, the movable cover plate 4 is limited by the fixed cover plate 3 on the radial inner side, by the vertical rod 7 on the radial outer side, and has a bottom stiffening rib 41 in the annular direction, wherein gaps are left between the two ends of the stiffening rib 41 and the movable beam 2, and two adjacent movable beams 2 can limit the movable cover plate 4 in the annular direction, so the movable cover plate 4 only needs to be placed on the movable beam 2. The stiffening rib 41 can also play a role in strengthening the overall structural strength of the movable cover plate 4.

[0047] Optionally, the fixed cover plate 3 is in a fan-shaped structure.

[0048] Optionally, the upper surface of the fixed cover plate 3 is provided with an anti-slip pattern.

[0049] In this embodiment, the upper surface of the fixed cover plate 3 has a pattern design, which can increase the friction of the fixed cover plate 3 and prevent workers from slipping on it.

[0050] Optionally, the first connection portion 11 is a first positioning hole, the second connection portion 21 is a second positioning hole, and the first positioning hole and the second positioning hole are used to be connected via a pin to fix the movable beam 2 relative to the fixed beam 1 .

[0051] In this embodiment, the first positioning hole and the second positioning hole can be pin holes, and the pins cooperate with the first positioning hole on the fixed beam 1 and the second positioning hole on the movable beam 2 respectively to fix the movable beam 2 relative to the fixed beam 1.

[0052] Combined with Figures 1 to 2 As shown, the variable diameter concrete tower construction platform can be operated according to the following steps:

[0053] S1. Install each movable beam 2 on the fixed beam 1 on the ground, so that the first connection part 11 of the fixed beam 1 is aligned with the second connection part 21 of the first movable beam 2, and use screws to connect the movable beam 2 with the fixed beam 1 to ensure that the movable beam 2 and the fixed beam 1 do not slide relative to each other, and install the safety rope 9 on the top of the vertical pole 7;

[0054] S2. Install the movable cover plate 4 on the movable beam 2 in sequence. The movable cover plate 4 has a fixed cover plate 3 on the radial inner side, a vertical rod 7 on the radial outer side, and a bottom stiffening rib 41 in the annular direction. Therefore, the movable cover plate 4 only needs to be placed on the movable beam 2. The movable cover plate 4 that interferes with the tower ladder does not need to be installed;

[0055] S3, connect one end of the wire rope to the crane hook, and the other end to the first lifting lug 5 of the fixed beam 2, and use the crane to lift the construction platform to the inside of the tower;

[0056] S4. The worker climbs up the ladder from the inside of the tower to the construction platform, connects one end of the lifting rope to the embedded lifting point of the cylinder section, and the other end to the second lifting lug 6 of the movable beam 2, then lowers the crane hook so that the weight of the construction platform is borne by the lifting rope, and then releases the wire rope on the crane hook;

[0057] S5. Workers complete the corresponding leveling, gluing and other tasks on the construction platform;

[0058] S6. Hoist the next cylinder section;

[0059] S7, the worker connects one end of the wire rope to the crane hook and the other end to the first lifting lug 5 of the fixed beam 2, and uses the crane to lift the construction platform up to a certain height so that the weight of the construction platform is borne by the wire rope, and then releases the lifting rope connected to the embedded lifting point of the cylinder segment;

[0060] S8, remove the outermost movable cover plate 4, pull out the screws connecting the fixed beam 2 and the movable beam 1, move the movable beam 2 inward by a certain distance, so that the first connection portion 11 of the fixed beam 1 is aligned with the second connection portion 21 on the second movable beam 2, and insert the screws to connect the movable beam 2 with the fixed beam 1;

[0061] S9. Workers temporarily retreat to the ladder, continue to lift the hook, and raise the construction platform to the upper cylinder section;

[0062] S10, repeating steps S4 to S9 until the tower hoisting is completed;

[0063] S11. Lift the construction platform out of the tower.

[0064] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0065] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A variable diameter concrete tower construction platform, characterized in that: include: A fixed beam (1), a movable beam (2), a fixed cover plate (3) and a movable cover plate (4), wherein one ends of a plurality of the fixed beams (1) are interconnected, and the other ends of the plurality of the fixed beams (1) are located on the same circumference, and the fixed cover plate (3) is respectively connected between any two adjacent fixed beams (1), and the fixed beams (1) correspond to the movable beams (2) one by one, and each movable beam (2) is telescopically connected to the fixed beam (1) along the extension direction of the corresponding fixed beam (1), and the fixed beam (1) is provided with a first connecting portion (11), and the movable beam (2) is provided with a second connecting portion (21), and in the extension direction of the fixed beam (1), a plurality of the first connecting portion (11) and / or the second connecting portion (21) are provided, and the first connecting portion (11) is used to be connected to the second connecting portion (21), and the movable cover plate (4) is respectively detachably connected between any two adjacent movable beams (2).

2. The variable diameter concrete tower construction platform according to claim 1 is characterized in that: A first lifting lug (5) is provided on the upper surface of the fixed beam (1), and the first lifting lug (5) is located at one end of the fixed beam (1) close to the movable beam (2).

3. The variable diameter concrete tower construction platform according to claim 1 is characterized in that: A second lifting lug (6) is provided at one end of the movable beam (2) away from the fixed beam (1).

4. The variable diameter concrete tower construction platform according to claim 1, characterized in that: It also comprises a vertical rod (7), each of the movable beams (2) is respectively connected to the vertical rod (7), the vertical rod (7) is vertically arranged relative to the movable beam (2), and the vertical rod (7) is located at one end of the movable beam (2) away from the fixed beam (1).

5. The variable diameter concrete tower construction platform according to claim 4 is characterized in that: A third lifting lug (8) is provided at the top of each of the vertical poles (7), and a safety rope (9) is connected between any two adjacent third lifting lugs (8).

6. The variable diameter concrete tower construction platform according to claim 1, characterized in that: The fixed beam (1) has a cavity structure with an open end, one end of the movable beam (2) extends into the cavity structure, and the movable beam (2) is used to extend or contract within the fixed beam (1).

7. The variable diameter concrete tower construction platform according to claim 1, characterized in that: A stiffening rib (41) is provided at the bottom of the movable cover plate (4).

8. The variable diameter concrete tower construction platform according to claim 1, characterized in that: The fixed cover plate (3) is in a fan-shaped structure.

9. The variable diameter concrete tower construction platform according to claim 8, characterized in that: The upper surface of the fixed cover plate (3) is provided with a pattern for preventing slipping.

10. The variable diameter concrete tower construction platform according to claim 1, characterized in that: The first connection portion (11) is a first positioning hole, the second connection portion (21) is a second positioning hole, and the first positioning hole and the second positioning hole are used to be connected via a pin shaft to fix the movable beam (2) relative to the fixed beam (1).

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