A wind power tower variable diameter construction platform

Abstract

A wind power mixed tower variable diameter construction platform comprises a central support, the central support is fixedly connected with a plurality of variable diameter drive mechanisms distributed in a circle, the movable end of the variable diameter drive mechanism is fixedly connected with a main bearing frame, the top of the central support and the main bearing frame are fixedly provided with a hoisting connection mechanism for connecting a hoisting device, a secondary bearing frame is provided between two adjacent main bearing frames, and the edge position of the secondary bearing frame is detachably connected with the main bearing frame. The utility model provides a wind power mixed tower variable diameter construction platform, which can adjust the overall size according to the construction position during the construction of the wind power mixed tower, and does not need to be hoisted and transported out as a whole and then disassembled, which can greatly improve the construction efficiency.

Description

Technical Field

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

[0002] Wind power mixed tower refers to the tower structure of wind turbines. Common mixed towers are composed of concrete structure and steel structure, so they are called mixed towers. Usually, the lower part is a concrete structure part and the upper part is a steel structure part. During the construction of the mixed tower, a construction platform is required to move up and down inside to drive the staff to carry out fine construction on the inside of the mixed tower. The conventional driving method of the construction platform is to use a lifting device to lift the entire construction platform into the mixed tower, and then control the construction platform to rise or fall. Because the inner diameters of various parts of the mixed tower are different, the construction platform needs to be adaptively adjusted at different positions. At present, the existing technology mainly divides the mixed tower into multiple sections. After the construction of one section is completed, the entire construction platform is lifted out, disassembled and reassembled to change the size of the construction platform, so that the staff can carry out construction at different positions. This method consumes a lot of time, resulting in delays in the installation progress of the wind turbine. Utility Model Content

[0003] In order to address the deficiencies in the prior art, the utility model provides a wind turbine hybrid tower variable diameter construction platform. During the construction of the wind turbine hybrid tower, the overall size can be adjusted according to the construction location, and there is no need to disassemble and assemble the entire tower after lifting and transporting it out, which can greatly improve the construction efficiency.

[0004] In order to achieve the above-mentioned purpose, the specific scheme adopted by the utility model is: a wind power hybrid tower variable diameter construction platform, including a central support, the central support is fixedly connected to a plurality of circumferentially distributed variable diameter drive mechanisms, the movable end of the variable diameter drive mechanism is fixedly connected to a main bearing frame, the top of the central support and the main bearing frame are fixedly provided with a lifting connection mechanism for connecting a lifting equipment, a secondary bearing frame is arranged between two adjacent main bearing frames, and the edge position of the secondary bearing frame is detachably connected to the main bearing frame.

[0005] As a further optimization of the above-mentioned wind turbine hybrid tower variable diameter construction platform: the main bearing frame includes a main bearing plate, on which a main outer guardrail and a main inner guardrail are vertically fixed, and the main outer guardrail is provided with the lifting connection mechanism, the secondary bearing frame includes a secondary bearing plate, on which a secondary outer guardrail and a secondary inner guardrail are vertically fixed, and the main bearing plate and the secondary bearing plate are detachably connected.

[0006] As a further optimization of the above-mentioned variable-diameter construction platform for wind turbine hybrid towers: a plurality of connecting nuts distributed in a matrix are fixedly connected to the lower surface of the main bearing plate, a plurality of through holes corresponding to the inner holes of the connecting nuts are opened on the main bearing plate, and a plurality of connecting bolts are passed through the edge of the secondary bearing plate. The connecting bolts can pass through the through holes and cooperate with the connecting nuts to connect the secondary bearing plate to the main bearing plate.

[0007] As a further optimization of the above-mentioned wind turbine hybrid tower variable diameter construction platform: the main outer guardrail, the main inner guardrail, the secondary outer guardrail and the secondary inner guardrail each include two vertically arranged and parallel cross bars, a lower cross bar is fixedly connected to the main bearing plate or the secondary bearing plate, and two vertical bars parallel to each other and two diagonal bars arranged at a different angle are fixedly connected between the two cross bars.

[0008] As a further optimization of the above-mentioned variable-diameter construction platform for wind turbine hybrid tower: the variable-diameter driving mechanism includes a fixed support plate fixedly connected to the central support and horizontally arranged, the fixed support plate is slidably connected to a sliding support plate, the main bearing frame is fixedly arranged on the sliding support plate, and a hydraulic cylinder is also fixedly arranged on the fixed support plate, and the movable end of the hydraulic cylinder is fixedly connected to the main bearing frame.

[0009] As a further optimization of the above-mentioned wind turbine hybrid tower variable diameter construction platform: the central support includes a frame, a hydraulic oil tank is fixedly arranged inside the frame, the hydraulic oil tank is connected to a hydraulic pump for supplying oil to all the hydraulic cylinders, and the outside of the frame is also rotatably connected to a plurality of telescopic reinforcement rods, the telescopic reinforcement rods are correspondingly arranged above the variable diameter driving mechanism, and the movable ends of the telescopic reinforcement rods are correspondingly rotatably connected to the main bearing frame.

[0010] As a further optimization of the above-mentioned variable-diameter construction platform for wind turbine hybrid towers: the telescopic reinforcement rod includes a sleeve rotatably connected to the frame and a pull rod slidably arranged in the sleeve, and a steel rope is connected between the pull rod and the frame, and one end of the pull rod extending out of the sleeve is rotatably connected to the main bearing frame.

[0011] As a further optimization of the above-mentioned variable-diameter construction platform for wind turbine hybrid tower: a slide groove is provided on the upper surface of the fixed support plate, and a limiting groove is provided on each of the two side walls of the slide groove, and the extension direction of the limiting groove is the same as that of the slide groove, the sliding support plate is slidably arranged in the slide groove, and the sliding support plate is integrally connected with two extension parts, and the two extension parts are correspondingly slidably arranged in the limiting groove.

[0012] As a further optimization of the above-mentioned wind turbine hybrid tower variable diameter construction platform: the hoisting connection mechanism includes at least two connecting rods parallel to each other, a hoisting rod is fixedly connected between the two connecting rods, and at least one hoisting hole is opened on the hoisting rod.

[0013] As a further optimization of the above-mentioned wind turbine hybrid tower variable diameter construction platform: the number of the main bearing frame and the number of the auxiliary bearing frame are both six.

[0014] Beneficial effect: During the construction of a wind turbine hybrid tower, the variable-diameter construction platform of the utility model can adjust the overall size according to the construction location, without the need for overall lifting and transportation and subsequent disassembly, which can greatly improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model in a large diameter state;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model in a small diameter state;

[0017] Figure 3 It is a structural schematic diagram of the variable diameter driving mechanism;

[0018] Figure 4 is a schematic diagram of the connection method of the fixed support plate and the sliding support plate;

[0019] Figure 5 is a structural schematic diagram of the main bearing frame;

[0020] Figure 6 It is a structural schematic diagram of the auxiliary bearing frame;

[0021] Figure 7 It is a schematic diagram of the structure of the main outer guardrail and the secondary outer guardrail;

[0022] Figure 8 It is a structural diagram of the center bracket.

[0023] Description of the drawings: 1-center bracket, 2-variable drive mechanism, 3-main bearing frame, 4-auxiliary bearing frame, 5-fixed support plate, 6-sliding support plate, 7-hydraulic cylinder, 8-extension part, 9-main bearing plate, 10-through hole, 11-main outer guardrail, 12-main inner guardrail, 13-auxiliary bearing plate, 14-connecting bolt, 15-auxiliary outer guardrail, 16-auxiliary inner guardrail, 17-vertical rod, 18-cross rod, 19-diagonal rod, 20-connecting rod, 21-lifting rod, 22-lifting hole, 23-frame, 24-hydraulic oil tank, 25-hydraulic pump, 26-casing, 27-pull rod. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 and 2 A wind power hybrid tower variable diameter construction platform comprises a central support 1, to which a plurality of circumferentially distributed variable diameter driving mechanisms 2 are fixedly connected, the movable ends of the variable diameter driving mechanisms 2 are fixedly connected to a main bearing frame 3, the tops of the central support 1 and the main bearing frame 3 are fixedly provided with a hoisting connection mechanism for connecting a hoisting device, a secondary bearing frame 4 is provided between two adjacent main bearing frames 3, and the edge position of the secondary bearing frame 4 is detachably connected to the main bearing frame 3.

[0026] The variable diameter construction platform of the utility model can adjust the overall size according to the construction position during the construction of the wind power tower. Specifically, when it is necessary to construct in the area with a larger inner diameter at the lower part of the tower, the variable diameter driving mechanism 2 is used to drive the main bearing frame 3 to move toward the periphery, so that the diameter of the circular area enclosed by all the main bearing frames 3 is enlarged, such as Figure 1 As shown, when construction is required in the area with a smaller inner diameter at the upper part of the mixing tower, the diameter-changing driving mechanism 2 is used to drive the main bearing frame 3 to move toward the center support 1, so that the diameter of the circular area enclosed by all the main bearing frames 3 is reduced, as shown in FIG. Figure 2 As shown, the effect of variable diameter is achieved, which fully meets the construction requirements of different positions of the wind power tower. On the other hand, during the movement of the main bearing frame 3, the distance between two adjacent main bearing frames 3 will change. By setting the auxiliary bearing frame 4 and making the edge position of the auxiliary bearing frame 4 detachably connected to the main bearing frame 3, when the distance between two adjacent main bearing frames 3 changes, by adjusting the overlapping area of ​​the auxiliary bearing frame 4 and the main bearing frame 3, it is ensured that the auxiliary bearing frame 4 can cover the space between the two adjacent main bearing frames 3, that is, all the main bearing frames 3 and all the auxiliary bearing frames 4 can be connected together to form a complete annular platform to support the staff and the related equipment required for the construction.

[0027] See also Figure 3 and 8The specific structure of the main bearing frame 3 and the auxiliary bearing frame 4 is as follows: the main bearing frame 3 includes a main bearing plate 9, on which a main outer guardrail 11 and a main inner guardrail 12 are vertically fixedly arranged, and a lifting connection mechanism is arranged on the main outer guardrail 11; the auxiliary bearing frame 4 includes an auxiliary bearing plate 13, on which an auxiliary outer guardrail 15 and an auxiliary inner guardrail 16 are vertically fixedly arranged, and the main bearing plate 9 and the auxiliary bearing plate 13 are detachably connected. The main outer guardrail 11 and the main inner guardrail 12 cooperate to form a main operation space, and the auxiliary outer guardrail 15 and the auxiliary inner guardrail 16 cooperate to form a secondary operation space. All main operation spaces and all auxiliary operation spaces are connected to form a complete overall operation space, and the staff and related equipment can move flexibly in the overall operation space, which is convenient for construction. The main outer guardrail 11, the main inner guardrail 12, the auxiliary outer guardrail 15 and the auxiliary inner guardrail 16 can protect the staff and related equipment to avoid the falling accidents of personnel or equipment.

[0028] Because the main bearing plate 9 and the auxiliary bearing plate 13 need to be flexibly disassembled or connected according to the construction position, in order to facilitate the staff to directly complete the disassembly and assembly process of the auxiliary bearing plate 13 in the overall operation space, the lower surface of the main bearing plate 9 is fixedly connected with a plurality of connecting nuts distributed in a matrix, and the main bearing plate 9 is provided with a plurality of through holes 10 corresponding to the inner holes of the connecting nuts, and the edge position of the auxiliary bearing plate 13 is penetrated with a plurality of connecting bolts 14, which can pass through the through holes 10 and cooperate with the connecting nuts to connect the auxiliary bearing plate 13 with the main bearing plate 9. The main bearing plate 9 and the auxiliary bearing plate 13 can be connected by using the connecting bolts 14 to pass through the through holes 10 downwards and cooperate with the connecting nuts, and vice versa, the main bearing plate 9 and the auxiliary bearing plate 13 can be separated, and the staff only needs to stand on the main bearing plate 9 to operate, which is convenient and safe.

[0029] In order to reduce the weight of the main bearing frame 3 and the auxiliary bearing frame 4, so as to reduce the load of the hoisting equipment, the main outer guardrail 11, the main inner guardrail 12, the auxiliary outer guardrail 15 and the auxiliary inner guardrail 16 each include two vertically arranged and mutually parallel crossbars 18, one of the lower crossbars 18 is fixedly connected to the main bearing plate 9 or the auxiliary bearing plate 13, and two mutually parallel vertical bars 17 and two poorly arranged oblique bars 19 are fixedly connected between the two crossbars 18. On this basis, the crossbar 18, the oblique bar 19 and the vertical bar 17 can form a relatively stable triangular structure to improve the structural strength of the main bearing frame 3 and prevent the main bearing frame 3 from deforming during the hoisting process and causing accidents.

[0030] The specific structure of the variable diameter driving mechanism 2 is as follows: the variable diameter driving mechanism 2 includes a fixed support plate 5 fixedly connected to the central support 1 and arranged horizontally, the fixed support plate 5 is slidably connected with a sliding support plate 6, the main bearing frame 3 is fixedly arranged on the sliding support plate 6, and a hydraulic cylinder 7 is also fixedly arranged on the fixed support plate 5, and the movable end of the hydraulic cylinder 7 is fixedly connected to the main bearing frame 3. The fixed support plate 5 and the sliding support plate 6 cooperate to jointly support the main bearing frame 3, and the hydraulic cylinder 7 is used to drive the main bearing frame 3 to move and bear a certain load from the main bearing frame 3. In order to further enhance the stability of the sliding support plate 6 and improve the safety of the staff and related equipment on the main bearing frame 3 and the auxiliary bearing frame 4, a slide groove is provided on the upper surface of the fixed support plate 5, and a limiting groove is also provided on each of the two side walls of the slide groove, and the extension direction of the limiting groove is the same as that of the slide groove, the sliding support plate 6 is slidably arranged in the slide groove, and the sliding support plate 6 is integrally connected with two extensions 8, and the two extensions 8 are correspondingly slidably arranged in the limiting groove. The extension part 8 can be limited by the limiting groove, and then the sliding support plate 6 can be limited to prevent the sliding support plate 6 from tilting downward and causing the main bearing frame 3 to slide. Similarly, multiple steel bars can be fixedly arranged on the fixed support plate 5, and both ends of the steel bars are fixedly connected to the fixed support plate 5, and the sliding support plate 6 is located between two fixed points, so that the sliding support plate 6 can be limited by the steel bars to prevent the sliding support plate 6 from tilting, and the overall weight will not be greatly increased, avoiding excessive load on the fixed support plate 5.

[0031] The specific structure of the central support 1 is as follows: the central support 1 includes a frame 23, a hydraulic oil tank 24 is fixedly arranged inside the frame 23, the hydraulic oil tank 24 is connected to a hydraulic pump 25 for supplying oil to all hydraulic cylinders 7, and a plurality of telescopic reinforcement rods are rotatably connected to the outside of the frame 23, the telescopic reinforcement rods are correspondingly arranged above the variable diameter driving mechanism 2, and the movable ends of the telescopic reinforcement rods are correspondingly rotatably connected to the main bearing frame 3. The telescopic reinforcement rods are used to further enhance the safety of the main bearing frame 3 and prevent the main bearing frame 3 from falling.

[0032] The specific structure of the telescopic reinforcement rod is as follows: the telescopic reinforcement rod includes a sleeve 26 rotatably connected to the frame 23 and a pull rod 27 slidably arranged in the sleeve 26, and a steel rope is connected between the pull rod 27 and the frame 23, and one end of the pull rod 27 extending out of the sleeve 26 is rotatably connected to the main support frame 3.

[0033] The specific structure of the hoisting connection mechanism is as follows: the hoisting connection mechanism includes at least two parallel connecting rods 20, a hoisting rod 21 is fixedly connected between the two connecting rods 20, and at least one hoisting hole 22 is provided on the hoisting rod 21. The hoisting connection mechanism is provided on both the central support 1 and the main bearing frame 3, and the hoisting equipment can hoist the entire platform from multiple different positions, which can avoid excessive local force, ensure the structural stability of the platform, and also prevent the main bearing frame 3 from falling, further improving the safety of the staff and related equipment on the main bearing frame 3 and the auxiliary bearing frame 4.

[0034] In this embodiment, the number of the main bearing frame 3 and the number of the auxiliary bearing frame 4 are both six, so as to ensure that a ring-shaped platform can be formed while avoiding the overly complicated assembly and disassembly process of the auxiliary bearing frame 4 caused by too many main bearing frames 3 and auxiliary bearing frames 4. In other embodiments of the utility model, the appropriate number of main bearing frames 3 and auxiliary bearing frames 4 can be selected according to actual needs.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind power mixed tower variable diameter construction platform, characterized in that: The invention comprises a central support (1), the central support (1) being fixedly connected to a plurality of circumferentially distributed variable diameter drive mechanisms (2), the movable ends of the variable diameter drive mechanisms (2) being fixedly connected to a main bearing frame (3), the tops of the central support (1) and the main bearing frame (3) being fixedly provided with a hoisting connection mechanism for connecting a hoisting device, a secondary bearing frame (4) being provided between two adjacent main bearing frames (3), and the edge of the secondary bearing frame (4) being detachably connected to the main bearing frame (3).

2. A wind power mixed tower variable diameter construction platform as claimed in claim 1, characterized in that: The main bearing frame (3) comprises a main bearing plate (9), on which a main outer side guardrail (11) and a main inner side guardrail (12) are vertically fixedly arranged, and the main outer side guardrail (11) is provided with the lifting connection mechanism, and the auxiliary bearing frame (4) comprises an auxiliary bearing plate (13), on which a auxiliary outer side guardrail (15) and an auxiliary inner side guardrail (16) are vertically fixedly arranged, and the main bearing plate (9) and the auxiliary bearing plate (13) are detachably connected.

3. A wind power mixed tower variable diameter construction platform as claimed in claim 2, characterized in that: The lower surface of the main bearing plate (9) is fixedly connected with a plurality of connecting nuts distributed in a matrix, the main bearing plate (9) is provided with a plurality of through holes (10) corresponding to the inner holes of the connecting nuts, and the edge of the auxiliary bearing plate (13) is provided with a plurality of connecting bolts (14), the connecting bolts (14) can pass through the through holes (10) and cooperate with the connecting nuts to connect the auxiliary bearing plate (13) with the main bearing plate (9).

4. A wind power mixed tower variable diameter construction platform as claimed in claim 2, characterized in that: The main outer guardrail (11), the main inner guardrail (12), the secondary outer guardrail (15) and the secondary inner guardrail (16) all include two vertically arranged and mutually parallel cross bars (18), one of the lower cross bars (18) is fixedly connected to the main bearing plate (9) or the secondary bearing plate (13), and two vertical bars (17) and two diagonal bars (19) arranged at an angle are fixedly connected between the two cross bars (18).

5. A wind power mixed tower variable diameter construction platform as claimed in claim 1, characterized in that: The variable diameter driving mechanism (2) comprises a fixed support plate (5) fixedly connected to the central support (1) and arranged horizontally, the fixed support plate (5) being slidably connected to a sliding support plate (6), the main bearing frame (3) being fixedly arranged on the sliding support plate (6), a hydraulic cylinder (7) being also fixedly arranged on the fixed support plate (5), and a movable end of the hydraulic cylinder (7) being fixedly connected to the main bearing frame (3).

6. A wind power mixed tower variable diameter construction platform as claimed in claim 5, characterized in that: The central support (1) comprises a frame (23), a hydraulic oil tank (24) is fixedly arranged inside the frame (23), the hydraulic oil tank (24) is connected to a hydraulic pump (25) for supplying oil to all the hydraulic cylinders (7), and a plurality of telescopic reinforcement rods are rotatably connected to the outside of the frame (23), the telescopic reinforcement rods are arranged one by one above the variable diameter drive mechanism (2), and the movable ends of the telescopic reinforcement rods are correspondingly rotatably connected to the main bearing frame (3).

7. A wind power mixed tower variable diameter construction platform as claimed in claim 6, characterized in that: The telescopic reinforcement rod comprises a sleeve (26) rotatably connected to the frame (23) and a pull rod (27) slidably arranged in the sleeve (26), and a steel rope is connected between the pull rod (27) and the frame (23), and one end of the pull rod (27) extending out of the sleeve (26) is rotatably connected to the main bearing frame (3).

8. A wind power mixed tower variable diameter construction platform as claimed in claim 5, characterized in that: A slide groove is provided on the upper surface of the fixed support plate (5), and a limiting groove is provided on each of the two side walls of the slide groove, and the extending direction of the limiting groove is the same as that of the slide groove. The sliding support plate (6) is slidably arranged in the slide groove, and the sliding support plate (6) is integrally connected with two extension parts (8), and the two extension parts (8) are correspondingly slidably arranged in the limiting grooves.

9. A wind power mixed tower variable diameter construction platform as claimed in claim 1, characterized in that: The hoisting connection mechanism comprises at least two mutually parallel connecting rods (20), a hoisting rod (21) is fixedly connected between the two connecting rods (20), and at least one hoisting hole (22) is formed on the hoisting rod (21).

10. A wind power mixed tower variable diameter construction platform as claimed in claim 1, characterized in that: The number of the main bearing frame (3) and the number of the auxiliary bearing frame (4) are both six.

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