Offshore wind power platform A-shaped frame hoisting mechanism

Abstract

The utility model relates to the technical field of wind power hoisting, and discloses an offshore wind power platform A-shaped frame hoisting mechanism which comprises a supporting base, the top of the supporting base is rotationally connected with a front supporting arm, the top of the supporting base is rotationally connected with a rear supporting arm, and the top of the supporting base is rotationally connected with a hoisting arm. A main lifting hook is installed on the outer edge of the lifting arm, an auxiliary lifting hook is installed on the outer edge of the lifting arm, and a fixing cylinder is rotationally connected to the outer wall of the front supporting arm. According to the A-shaped frame hoisting mechanism of the offshore wind power platform, a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm are arranged between the outer walls of the rear supporting arm and the front supporting arm, so that a plurality of triangles are formed between the inner walls of the rear supporting arm and the front supporting arm; therefore, a stable triangular structure is formed between the rear supporting arm and the front supporting arm, the stability of the equipment can be effectively improved, and safe hoisting of the equipment is better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power hoisting equipment, in particular to an A-frame hoisting mechanism for an offshore wind power platform. Background Art

[0002] With years of development of onshore wind power, wind power technology has gradually matured. In comparison, offshore wind power has more advantages, but it is also more difficult to develop. At present, the fixed foundation structure of offshore wind power is mainly single pile foundation. The single pile foundation mainly has the advantages of factory production and high offshore construction efficiency, and its application is becoming more and more extensive.

[0003] When traditional offshore wind power hoisting equipment is in use, the support arms of the traditional hoisting equipment do not form a stable triangle with each other. The triangle has good stability, which will cause a certain instability in the equipment during use, thereby affecting the normal hoisting work of the equipment and even causing production safety accidents. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides an A-frame hoisting mechanism for an offshore wind power platform, which has the advantages of good stability and safe and stable hoisting, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an A-frame hoisting mechanism for an offshore wind power platform, comprising a supporting base, the top of the supporting base is rotatably connected to a front supporting arm, the top of the supporting base is rotatably connected to a rear supporting arm, the top of the supporting base is rotatably connected to a suspension arm, the outer edge of the suspension arm is provided with a main suspension hook, the outer edge of the suspension arm is provided with a secondary suspension hook, the outer wall of the front supporting arm is rotatably connected to a fixing cylinder, the inner cavity of the fixing cylinder is threadedly connected to an adjusting rod, the outer wall of the rear supporting arm is fixedly equipped with a connecting cylinder, the outer wall of the front supporting arm is fixedly equipped with a No. 3 connecting arm, the outer wall of the front supporting arm is fixedly equipped with a No. 4 connecting arm, the outer wall of the rear supporting arm is fixedly equipped with a No. 1 connecting arm, and the outer wall of the rear supporting arm is fixedly equipped with a No. 2 connecting arm.

[0006] As a preferred technical solution of the utility model: the outer wall of the front support arm away from the support base is rotatably connected to the outer wall of the rear support arm away from the support base, and the length of the front support arm is greater than that of the rear support arm.

[0007] As a preferred technical solution of the utility model: the No. 1 connecting arm is installed in the middle of the outer wall of the rear support arm, and the No. 3 connecting arm is installed in the middle of the outer wall of the front support arm.

[0008] As a preferred technical solution of the utility model: the outer wall of the adjusting rod away from the end of the fixing cylinder is rotatably connected to the inner cavity of the connecting cylinder, and the outer wall of the adjusting rod is fixedly equipped with an operating rod.

[0009] As a preferred technical solution of the utility model: the support base and the front support arm and the rear support arm are all made of low-alloy high-strength steel, and the outer walls of the support base and the front support arm and the rear support arm are painted with anti-rust paint.

[0010] As a preferred technical solution of the utility model: the inner cavity of the fixing cylinder is provided with an internal thread, the outer wall of the adjusting rod is provided with an external thread, and the outer wall of the adjusting rod is threadedly connected to the inner cavity of the fixing cylinder.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] First, the utility model forms a plurality of triangles between the inner walls of the rear support arm and the front support arm by arranging connecting arm No. 1, connecting arm No. 2, connecting arm No. 3, and connecting arm No. 4 between the outer walls of the rear support arm and the front support arm, thereby forming a stable triangular structure between the rear support arm and the front support arm, which can effectively improve the stability of the equipment and is more conducive to the safe lifting of the equipment.

[0013] Second, the utility model arranges a fixing cylinder, an adjusting rod and a connecting cylinder between the No. 1 connecting arm and the No. 2 connecting arm, and the front supporting arm and the rear supporting arm are mounted to the top of the supporting base by a rotating connection. When the equipment is not in use, the position of the adjusting rod is adjusted so that the distance between the front supporting arm and the rear supporting arm is shortened between the adjusting rod and the fixing cylinder and the connecting cylinder, thereby tightening the front supporting arm and the rear supporting arm to avoid resonance between the front supporting arm and the rear supporting arm, thereby affecting the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the front support arm of the utility model;

[0016] Figure 3 This is a schematic diagram of the rear support arm structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the support base structure of the utility model;

[0018] Figure 5 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. Support base; 2. Front support arm; 3. Rear support arm; 4. Lifting arm; 5. Main lifting hook; 6. Auxiliary lifting hook; 7. Fixed cylinder; 8. Adjusting rod; 9. No. 1 connecting arm; 10. No. 2 connecting arm; 11. No. 3 connecting arm; 12. No. 4 connecting arm; 13. Connecting cylinder. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 A kind of offshore wind power platform A-frame lifting mechanism, including a supporting base 1, the top of the supporting base 1 is rotatably connected with a front supporting arm 2, the top of the supporting base 1 is rotatably connected with a rear supporting arm 3, the top of the supporting base 1 is rotatably connected with a boom 4, the outer edge of the boom 4 is equipped with a main hook 5, the outer edge of the boom 4 is equipped with an auxiliary hook 6, the outer wall of the front supporting arm 2 is rotatably connected with a fixing cylinder 7, the inner cavity of the fixing cylinder 7 is threadedly connected with an adjusting rod 8, the outer wall of the rear supporting arm 3 is fixedly equipped with a connecting cylinder 13, the outer wall of the front supporting arm 2 is fixedly equipped with a No. 3 connecting arm 11, the outer wall of the front supporting arm 2 is fixedly equipped with a No. 4 connecting arm 12, the outer wall of the rear supporting arm 3 is fixedly equipped with a No. 1 connecting arm 9, and the outer wall of the rear supporting arm 3 is fixedly equipped with a No. 2 connecting arm 10.

[0022] By rotating the front support arm 2 and the rear support arm 3 connected at the top of the support base 1, a complete triangle is formed between the front support arm 2, the rear support arm 3 and the support base 1, thereby improving the stability of the front support arm 2 when in use, and the No. 4 connecting arm 12, No. 3 connecting arm 11, No. 1 connecting arm 9, and No. 2 connecting arm 10 installed on the outer walls of the front support arm 2 and the rear support arm 3, so that a plurality of small triangles are formed between the inner walls of the front support arm 2 and the rear support arm 3, thereby better improving the stability of the front support arm 2 and the rear support arm 3 when in use.

[0023] In a preferred embodiment: the outer wall of the front support arm 2 away from the support base 1 is rotatably connected to the outer wall of the rear support arm 3 away from the support base 1, and the length of the front support arm 2 is greater than that of the rear support arm 3.

[0024] By rotating the tops of the front support arm 2 and the rear support arm 3 together, it is more convenient to manage and maintain the front support arm 2 and the rear support arm 3 separately, and it is also easier to maintain the front support arm 2 and the rear support arm 3.

[0025] In a preferred embodiment: the No. 1 connecting arm 9 is installed in the middle of the outer wall of the rear supporting arm 3 , and the No. 3 connecting arm 11 is installed in the middle of the outer wall of the front supporting arm 2 .

[0026] By installing the No. 3 connecting arm 11 on the outer wall of the front support arm 2, under the action of the No. 3 connecting arm 11, a complete triangle is formed between the outer wall of the No. 3 connecting arm 11 and the outer walls on both sides of the front support arm 2, so that the front support arm 2 and the rear support arm 3 themselves have good stability, and the triangle formed by the support base 1 and the front support arm 2 and the rear support arm 3 enables the equipment to have better stability.

[0027] In a preferred embodiment, the outer wall of the adjusting rod 8 away from the fixing tube 7 is rotatably connected to the inner cavity of the connecting tube 13 , and the outer wall of the adjusting rod 8 is fixedly equipped with an operating rod.

[0028] By threading the adjusting rod 8 in the inner cavity of the fixed cylinder 7, and the rotating part at the other end of the adjusting rod 8 is connected to the inner cavity of the connecting cylinder 13, the outer wall thread of the adjusting rod 8 can be made to enter the inner cavity of the fixed cylinder 7 by rotating the adjusting rod 8, and the outer wall of the adjusting rod 8 is rotationally connected to the inner cavity of the connecting cylinder 13, so that the outer wall of the front supporting arm 2 and the outer wall of the rear supporting arm 3 can be made close to each other under the action of the adjusting rod 8.

[0029] In a preferred embodiment: the support base 1 and the front support arm 2 and the rear support arm 3 are all made of low-alloy high-strength steel, and the outer walls of the support base 1 and the front support arm 2 and the rear support arm 3 are painted with anti-rust paint.

[0030] By making the support base 1 and the front support arm 2 and the rear support arm 3 of low-alloy high-strength steel, the support base 1 and the front support arm 2 and the rear support arm 3 have better stability during use, and the anti-rust paint applied to the outer walls of the support base 1 and the front support arm 2 and the rear support arm 3 can effectively prevent the support base 1 and the front support arm 2 and the rear support arm 3 from rusting during use.

[0031] In a preferred embodiment, the inner cavity of the fixing cylinder 7 is provided with an internal thread, the outer wall of the adjusting rod 8 is provided with an external thread, and the outer wall of the adjusting rod 8 is threadedly connected to the inner cavity of the fixing cylinder 7 .

[0032] By using the internal thread opened in the inner cavity of the fixed cylinder 7 and the external thread opened on the outer wall of the adjusting rod 8, the adjusting rod 8 is rotated so that the adjusting rod 8 enters the inner cavity of the fixed cylinder 7, so that under the action of the adjusting rod 8, the fixed cylinder 7 and the connecting cylinder 13, the distance between the front support arm 2 and the rear support arm 3 is adjusted, and the front support arm 2 and the rear support arm 3 are tightened, so as to prevent the front support arm 2 and the rear support arm 3 from being affected by wind and shaking when the equipment is not in use, and the resulting vibration affects the structural strength of the entire equipment.

[0033] When the utility model is in use, after the support base 1 is installed on the offshore platform, the support base 1 can be used to rotate the entire device, and the front support arm 2, the rear support arm 3, and the lifting arm 4 can be used to lift the steel. The third connecting arm 11 and the fourth connecting arm 12 arranged between the outer walls of the front support arm 2 can form a plurality of triangles between the inner walls of the front support arm 2 under the action of the third connecting arm 11 and the fourth connecting arm 12, thereby improving the overall strength of the front support arm 2. The first connecting arm 9 and the second connecting arm 10 are arranged between the inner walls of the rear support arm 3. Under the action of , a plurality of triangles can also be formed between the inner walls of the rear support arm 3. This arrangement can make the front support arm 2 and the rear support arm 3 have better stability during use. When the front support arm 2 and the rear support arm 3 are not performing lifting work, in complex conditions at sea, there is shaking between the front support arm 2 and the rear support arm 3 and the top of the support base 1. By rotating the adjusting rod 8, the front support arm 2 and the rear support arm 3 are tightened under the action of the adjusting rod 8, the fixing tube 7 and the connecting tube 13 to avoid shaking of the front support arm 2 and the rear support arm 3, thereby causing resonance and affecting the stability of the overall structure of the lifting equipment.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An A-frame hoisting mechanism for an offshore wind power platform, characterized in that: It includes: A support base (1) and a front support arm (2) rotatably mounted on the top of the support base (1); The top of the support base (1) is rotatably connected to a rear support arm (3), the top of the support base (1) is rotatably connected to a suspension arm (4), and a main suspension hook (5) is installed on the outer edge of the suspension arm (4); An auxiliary hook (6) is installed on the outer edge of the lifting arm (4); a fixing cylinder (7) is rotatably connected to the outer wall of the front supporting arm (2); and an adjusting rod (8) is threadedly connected to the inner cavity of the fixing cylinder (7); A connecting tube (13) is fixedly mounted on the outer wall of the rear support arm (3), and a No. 3 connecting arm (11) is fixedly mounted on the outer wall of the front support arm (2); A fourth connecting arm (12) is fixedly mounted on the outer wall of the front supporting arm (2), a first connecting arm (9) is fixedly mounted on the outer wall of the rear supporting arm (3), and a second connecting arm (10) is fixedly mounted on the outer wall of the rear supporting arm (3).

2. The A-frame hoisting mechanism for an offshore wind power platform according to claim 1, characterized in that: The outer wall of the front support arm (2) at one end away from the support base (1) is rotatably connected to the outer wall of the rear support arm (3) at one end away from the support base (1), and the length of the front support arm (2) is greater than the length of the rear support arm (3).

3. The A-frame hoisting mechanism for an offshore wind power platform according to claim 1, characterized in that: The first connecting arm (9) is installed at a middle position of the outer wall of the rear support arm (3), and the third connecting arm (11) is installed at a middle position of the outer wall of the front support arm (2).

4. The A-frame hoisting mechanism for an offshore wind power platform according to claim 1, characterized in that: The outer wall of the adjusting rod (8) at one end away from the fixing cylinder (7) is rotatably connected to the inner cavity of the connecting cylinder (13), and an operating rod is fixedly mounted on the outer wall of the adjusting rod (8).

5. The A-frame hoisting mechanism for an offshore wind power platform according to claim 1, characterized in that: The support base (1) and the front support arm (2) and the rear support arm (3) are all made of low-alloy high-strength steel, and the outer walls of the support base (1) and the front support arm (2) and the rear support arm (3) are all painted with anti-rust paint.

6. The A-frame hoisting mechanism for an offshore wind power platform according to claim 1, characterized in that: The inner cavity of the fixing cylinder (7) is provided with an internal thread, the outer wall of the adjusting rod (8) is provided with an external thread, and the outer wall of the adjusting rod (8) is threadedly connected to the inner cavity of the fixing cylinder (7).

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