Wind power generation torque energy saver

Abstract

The invention provides a wind power generation torque energy saver, and particularly relates to the technical field of energy savers. Comprising a plurality of first stand columns arranged in parallel, two second stand columns arranged in parallel, an upper connecting rod structure used for moving a stretching cylinder up and down, a guide structure, a pulley assembly and a lower connecting rod structure connected with the upper connecting rod structure, wherein the guide structure is connected to the two second stand columns; the pulley assembly is connected with the lower connecting rod structure through a pull rope. The bottom ends of the first stand columns are fixedly connected to the flange plate through the chassis, first transverse rods are horizontally fixed to the top ends of the first stand columns, second transverse rods are horizontally fixed to the bottom ends of the two second stand columns, and the second transverse rods are horizontally and movably connected to the first transverse rods through driving structures. According to the wind power generation torque energy saver, the construction efficiency of overall hoisting and overall dismantling of a fan can be effectively improved, the purposes of energy conservation and emission reduction are achieved, the labor cost is reduced, and the construction safety of workers is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of energy savers, and in particular relates to a wind power generation torque energy saver. Background Art

[0002] As wind power generation has developed to this day, from 0.3MW, 0.75MW to 1.0MW, wind turbines are getting taller and taller, and components are getting heavier. For example, by the end of 2024, the manufacturer's pre-installed prototype in Shandong had reached 18MW. Against this background, the challenges faced by wind power installation units are also increasing. As the power generation of a single unit increases, the installation equipment and supporting tools of the installation unit are also being upgraded iteratively. The installation equipment and supporting tools are inevitably developing towards higher and heavier heights, and the cost expenditure of the installation unit continues to rise.

[0003] Among them, during the lifting process, a stretching cylinder is often used to install and remove the locking plate. By using the stretching cylinder, multiple main bolts can be tightened or removed at the same time. Compared with the traditional method of tightening or removing one by one, the stretching cylinder can ensure that all bolts are evenly stressed, avoiding the breakage problem caused by excessive stress on individual bolts. It can also ensure the pre-tightening force of the bolts and prevent pressure relief and reduction of the locking plate's holding force due to external force impact.

[0004] However, as the safety factor of wind turbines continues to increase, the number of main bolts increases, and the bolt spacing decreases gradually. The existing stretching cylinder has three disadvantages: first, the cylinder body is thick, which leads to a relatively large diameter of the stretching cylinder, making it difficult to connect the stretching cylinder with large main bolts; second, if the cylinder body volume is reduced, the oil pressure area is insufficient, resulting in insufficient output force; third, during the stretching process of the stretching cylinder, the main bolt will be deflected, causing the stretching screw of the stretching cylinder to get stuck with the main bolt.

[0005] Therefore, the existing stretching cylinder can no longer meet the current use requirements. This solution proposes a wind power generation torque energy saver to solve the above-mentioned technical problem of high energy consumption in stretching. Summary of the invention

[0006] The purpose of the present invention is to provide a wind power generation torque energy saver, which solves the technical problem of how to effectively improve the efficiency of overall wind turbine hoisting and overall wind turbine dismantling construction, achieves the goal of energy conservation and emission reduction, reduces labor costs, and improves the safety of workers' construction.

[0007] A wind power torque energy saver, comprising a plurality of first columns arranged in parallel with each other, two second columns arranged in parallel with each other, an upper link structure for moving a stretching cylinder up and down, a guiding structure and a pulley assembly respectively connected above and below the upper link structure, and a lower link structure connected to the upper link structure. The upper link structure is movably connected to the two second columns, the guiding structure is connected to the two second columns, and the pulley assembly is connected to the lower link structure through a pulling rope;

[0008] The bottom ends of the first columns are fixedly connected to a flange through a chassis. A first cross bar is horizontally fixed at the top ends of the plurality of first columns. A second cross bar is horizontally fixed at the bottom ends of the two second columns. The second cross bar is horizontally movably connected to the first cross bar through a driving structure.

[0009] The upper link structure includes a second link rotatably connected to one of the second columns at its side and a third link rotatably connected to the other second column at its side, forming a lever structure;

[0010] A first long slot is provided at one end of the second link, and a second long slot is provided at one end of the second link. An activity shaft is inserted through the first long slot and the second long slot. Both ends of the activity shaft are respectively connected to an activity frame, and the activity frame is arranged between the two second columns;

[0011] The parts of the second link and the third link between the two second columns are resistance arms, and the other parts are power arms, and the power arm is longer than the resistance arm.

[0012] The top end of the activity frame is connected to the guiding structure; the guiding structure includes a guiding rod vertically and fixedly connected to the top end of the activity frame at its bottom end, a retaining piece fixed at the other end of the guiding rod, and a top frame fixed on the two second columns. The guiding rod vertically movably passes through the top frame.

[0013] The pulley assembly includes a fixed pulley fixed at the bottom end of the activity frame, a movable pulley connected to the fixed pulley through a pulling rope, and a stretching cylinder fixed at the bottom end of the movable pulley. One end of the pulling rope is connected to the bottom end of the fixed pulley, and the other end of the pulling rope sequentially passes around the movable pulley and the fixed pulley and is connected to the lower link structure.

[0014] The lower link structure includes a first link hinged to the other end of the second link at one end, a fourth link hinged to the other end of the third link at one end, and a lifting column hinged to the other ends of the first link and the fourth link. One end of the lifting column is fixedly connected to the other end of the pulling rope.

[0015] A receiving box is fixedly connected to the side of the first link. A plurality of positioning holes are provided on the receiving box, and bolts are arranged in the positioning holes;

[0016] A positioning seat is fixed to the side of the fourth connecting rod. The positioning seat is connected to the bottom end of the robotic arm. A gripper is provided at the top end of the robotic arm, and the gripper is detachably connected to the bolt.

[0017] One side of the second column is fixedly connected to one end of the fixed column, and the other end of the fixed column is detachably connected to the gripper.

[0018] There are multiple fixed pulleys and multiple movable pulleys respectively.

[0019] The other end of the lifting column is connected to the force application system.

[0020] The present invention achieves the following remarkable technical effects:

[0021] (1) In this solution, the upper connecting rod structure is designed to achieve the following technical effects:

[0022] Firstly, by using the lever principle, under the downward pressure of the second connecting rod and the third connecting rod, the movable frame moves up and down, driving the pulley assembly and the rope pulling cylinder below to move upward, playing a role of labor-saving adjustment, which helps to reduce the volume of the cylinder body without worrying about the insufficient oil pressure area;

[0023] Secondly, a movable shaft is designed and embedded inside the first long slot and the second long slot. When the first connecting rod and the second connecting rod rotate, it can ensure that the movable frame moves vertically up and down. During the stretching process of the stretching cylinder, the phenomenon of the main bolt skewing is avoided, and the jamming phenomenon between the stretching screw of the stretching cylinder and the main bolt is avoided;

[0024] (2) The guiding structure is designed to help maintain the stability of the up and down movement of the movable frame and avoid the shaking of the movable frame;

[0025] (3) The pulley assembly is provided. On the one hand, it cooperates with the upper connecting rod assembly to further reduce the force on the rope, achieving a further labor-saving effect. On the other hand, multiple pulley assemblies can be designed to optimize the labor-saving effect and the production operation cost;

[0026] (4) The lower connecting rod structure is provided to achieve the following technical effects:

[0027] Firstly, it drives the movement of the upper connecting rod structure to realize the up and down movement of the movable frame;

[0028] Secondly, it drives one end of the rope to move downward through the lifting column, thus realizing the superposition of the lever effect and the labor-saving effect of the movable pulley, and the operation is convenient;

[0029] Thirdly, a receiving box and a robotic arm are provided on the lower connecting rod structure, which helps to realize the automatic picking and placing of bolts. In addition, when the lower connecting rod structure descends, the receiving box and the robotic arm act as counterweights. When the lower connecting rod structure ascends, the gripper on the robotic arm is detachably connected to the side of the fixed column, which helps to save effort;

[0030] (5) The equipment of this solution is mainly used for torque construction during the installation and removal of tower barrels. Usually, three workers are required to cooperate in torque construction, but after using this equipment, only two workers are needed. This equipment saves one-third of the manpower. In addition, through verification in terms of construction time, the average speed of tower barrel torque construction has been saved by 40%. This equipment saves construction time and improves the construction efficiency of the team. Especially during the construction of large wind turbines, the advantages of this equipment become more obvious. Brief Description of the Drawings

[0031] Figure 1 is a three-dimensional schematic diagram of the torque energy saver in the present invention.

[0032] Figure 2 is the front view of the torque energy saver in the present invention.

[0033] Figure 3 is a schematic structural diagram of the upper connecting rod structure in the present invention.

[0034] Figure 4 is a schematic connection structure diagram of connecting rod two and connecting rod three in the present invention.

[0035] Figure 5 is a schematic structural diagram of the pulley assembly in the present invention.

[0036] Figure 6 is a schematic structural diagram of the lower connecting rod structure in the present invention.

[0037] Figure 7 is a schematic structural diagram of the chassis in the present invention.

[0038] Figure 8 is a schematic connection structure diagram of the traction rope and the static pulley in the present invention.

[0039] Among them, the reference numerals are: 1, chassis; 2, receiving box; 3, connecting rod one; 4, column one; 5, connecting rod two; 6, movable pulley; 7, fixed pulley; 8, top frame; 9, movable frame; 10, guide rod; 101, retaining piece; 11, movable shaft; 12, connecting rod three; 13, column two; 14, fixed column; 15, connecting rod four; 16, stretching cylinder; 17, positioning seat; 18, lifting column; 19, pulling rope; 20, cross bar one; 21, cross bar two; 211, driving motor; 22, traction rope; 23, static pulley. Detailed Embodiments

[0040] In order to more clearly illustrate the technical features of this solution, the following will elaborate on this solution through specific implementation manners.

[0041] See Figures 1 - 7 , a wind power torque energy saver, including a plurality of mutually parallel arranged first columns 4, two mutually parallel second columns 13, an upper link structure for moving the stretching cylinder 16 up and down, a guiding structure and a pulley assembly respectively connected above and below the upper link structure, and a lower link structure connected to the upper link structure. The upper link structure is movably connected to the two second columns 13, the guiding structure is connected to the two second columns 13, and the pulley assembly is connected to the lower link structure through a pulling rope 19;

[0042] The bottom ends of the first columns 4 are fixedly connected to a flange through a chassis 1, a first cross bar 20 is horizontally fixed at the top ends of the plurality of first columns 4, a second cross bar 21 is horizontally fixed at the bottom ends of the two second columns 13, and the second cross bar 21 is horizontally movably connected to the first cross bar 20 through a driving structure.

[0043] Under the action of the driving structure, the second cross bar 21 drives the upper link structure, the lower link structure, the guiding structure and the pulley assembly to horizontally move reciprocally along the first cross bar 20, so as to install and disassemble the main bolts at different positions, and further realize the installation and disassembling of the locking discs at different positions. The locking disc is a conventional component in the installation of the fan, which will not be elaborated here and will not be marked in the drawings either. This is hereby explained.

[0044] The upper link structure includes a second link 5 rotatably connected to one of the second columns 13 at the side and a third link 12 rotatably connected to the other second column 13 at the side, forming a lever structure;

[0045] One end of the second link 5 is provided with a first long slot, one end of the second link 5 is provided with a second long slot, an activity shaft 11 is inserted into the first long slot and the second long slot, and both ends of the activity shaft 11 are respectively connected to an activity frame 9, and the activity frame 9 is arranged between the two second columns 13;

[0046] The parts of the second link 5 and the third link 12 between the two second columns 13 are resistance arms, and the other parts are power arms, and the power arm is longer than the resistance arm.

[0047] Wherein, the sizes of the first long slot and the second long slot are the same, both are long open through slots, and the outer diameter of the activity shaft 11 is the same as the inner diameters of the first long slot and the second long slot, and the activity shaft 11 is just embedded in the inner sides of the first long slot and the second long slot and slides.

[0048] The top end of the movable frame 9 is connected to the guiding structure; the guiding structure includes a guiding rod 10 whose bottom end is vertically and fixedly connected to the top end of the movable frame 9, a retaining piece 101 fixed to the other end of the guiding rod 10, and a top frame 8 fixed to the first column 4 and the second column 13. The guiding rod 10 vertically passes through the top frame 8 movably. The guiding structure keeps the whole device stable during operation.

[0049] The pulley assembly includes a fixed pulley 7 fixed to the bottom end of the movable frame 9, a movable pulley 6 connected to the fixed pulley 7 through a pulling rope 19, and a stretching cylinder 16 fixed to the bottom end of the movable pulley 6. One end of the pulling rope 19 is connected to the bottom end of the fixed pulley 7, and the other end of the pulling rope 19 sequentially passes around the movable pulley 6 and the fixed pulley 7 and is connected to the lower link structure.

[0050] In this solution, there is only one fixed pulley 7 and one movable pulley 6 designed in the attached drawings. In actual use, multiple fixed pulleys 7 and movable pulleys 6 can be designed according to actual situations. This is prior art and will not be elaborated here.

[0051] The lower link structure includes a first link 3 whose one end is hinged to the other end of the second link 5, a fourth link 15 whose one end is hinged to the other end of the third link 12, and a lifting column 18 whose one end is hinged to the other ends of the first link 3 and the fourth link 15. One end of the lifting column 18 is fixedly connected to the other end of the pulling rope 19.

[0052] A receiving box 2 is fixedly connected to the side of the first link 3. A plurality of positioning holes are provided on the receiving box 2, and main bolts are arranged in the positioning holes.

[0053] A positioning seat 17 is fixed to the side of the fourth link 15. The positioning seat 17 is connected to the bottom end of the robotic arm. A gripper is arranged at the top end of the robotic arm, and the gripper is detachably connected to the main bolt.

[0054] One end of a fixed column 14 is fixedly connected to the side of one of the second columns 13, and the other end of the fixed column 14 is detachably connected to the gripper.

[0055] There are multiple fixed pulleys 7 and movable pulleys 6 respectively.

[0056] The other end of the lifting column 18 is connected to the force application system.

[0057] The specific working process of the present invention is as follows:

[0058] When this solution is in use, the stretching cylinder 16 is fixed to the bottom end of the movable pulley 6, and the pulling rope 19 is connected to the cylinder or torque wrench and the bolt.

[0059] In this solution, the upper connecting rod structure is designed. Using the lever principle, under the rotational action of the second connecting rod 5 and the third connecting rod 12, the movable frame 9 moves up and down. The movable shaft 11 slides in the first long slot and the second long slot, and drives the pulley assembly and the pull rope 19 below to move the cylinder upward, playing a role of labor-saving adjustment, helping to reduce the volume of the cylinder body without worrying about the insufficient oil pressure area.

[0060] The movable shaft 11 is designed and embedded inside the first long slot and the second long slot. When the first connecting rod 3 and the second connecting rod 5 rotate, it can ensure the vertical up and down movement of the movable frame 9. During the stretching process of the stretching cylinder 16, the phenomenon of the main bolt skewing is avoided, and the sticking phenomenon between the stretching screw of the stretching cylinder 16 and the main bolt is avoided.

[0061] A guiding structure is designed, which helps to maintain the stability of the up and down movement of the movable frame 9 and avoid the shaking of the movable frame 9; a pulley assembly is provided. On the one hand, it cooperates with the upper connecting rod assembly to further reduce the force of the pull rope 19 and achieve a further labor-saving effect. On the other hand, multiple pulley assemblies can be designed to optimize the labor-saving effect and the production operation cost; for the sake of simplifying the design, only a pair of pulley assemblies are designed in this solution, which is hereby explained.

[0062] A lower connecting rod structure is provided. The up and down movement of the lifting column 18 is driven by a force application system (such as human hands, mechanical lifting devices, etc.), and then the movement of the upper connecting rod structure is driven to realize the up and down movement of the movable frame 9; one end of the pull rope 19 is driven to move downward by the lifting column 18, thus realizing the superposition of the lever effect and the labor-saving effect of the movable pulley 6, and the operation is convenient;

[0063] A receiving box 2 and a robotic arm are provided on the lower connecting rod structure, which helps to realize the automatic picking and placing of bolts. The gripper on the robotic arm can not only take out the bolts from the receiving box 2 for installation, but also take out the bolts from below the pull rope 19 cylinder for disassembly; in addition, when the lower connecting rod structure descends, the receiving box 2 and the robotic arm play a role of counterweight to realize the labor-saving of the force application system. When the lower connecting rod structure ascends, the gripper on the robotic arm is detachably connected to the side part of the fixed column 14, that is, the gripper grabs the fixed column 14 and moves upward, which helps to save labor for the force application system.

[0064] See Figure 7 , when it is necessary to drive the stretching cylinder to move horizontally by two second columns 13, under the action of the driving structure, the second cross bar 21 is driven to slide horizontally on the first cross bar 20. The driving structure can be a gear driving structure, including a moving block fixed on the second cross bar 21, a gear rotatably connected to the moving block, a driving motor 211 drivingly connected to the gear, and a toothed belt fixed on the outside of the first cross bar 20. The gear is meshed and connected to the toothed belt. At the same time, an opening slot is also opened on the outside of the first cross bar 20, and the moving block is embedded and slidably connected in the opening slot. This is the prior art and will not be elaborated here.

[0065] See Figure 8 , in addition, the driving structure can also be a horizontal pulley driving assembly, that is, a fixed pulley 23 is fixed on the second cross bar 21, the traction rope 22 passes through the fixed pulley, one end of the traction rope 22 is fixed to one end of the first cross bar 20, and the other end is connected to the driving and traction system, so as to drive the second cross bar 21 to slide on the first cross bar 20.

[0066] It should be noted that for the sake of simplifying the design, the robotic arm and the gripper are not detailedly marked in the drawings in this solution. The robotic arm and the gripper belong to the mechanical structures of the prior art, and their specific structural forms are not limited, as long as the above-mentioned functional processes are realized.

[0067] The technical features not described in the present invention can be achieved by or adopted from the prior art, and will not be elaborated herein. Of course, the above description is not a limitation to the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essence of the present invention should also fall within the protection scope of the present invention.

Claims

1. A wind power torque energy saver, characterized in that, It comprises a plurality of mutually parallel columns (4), two mutually parallel columns (13), an upper connecting rod structure for moving a stretching cylinder (16) up and down, a guide structure and a pulley assembly respectively connected to the upper and lower parts of the upper connecting rod structure, and a lower connecting rod structure connected to the upper connecting rod structure, wherein the upper connecting rod structure is movably connected to the two columns (13), the guide structure is connected to the two columns (13), and the pulley assembly is connected to the lower connecting rod structure via a pull rope (19); The bottom end of the column one (4) is fixedly connected to the flange plate through the chassis (1), and a cross bar one (20) is horizontally fixed to the top end of the plurality of columns one (4), and a cross bar two (21) is horizontally fixed to the bottom end of the two columns two (13), and the cross bar two (21) is connected to the cross bar one (20) through a driving structure for horizontal movement.

2. The wind power torque energy saver according to claim 1, characterized in that, The upper connecting rod structure comprises a connecting rod 2 (5) whose side is rotatably connected to one of the two pillars (13), and a connecting rod 3 (12) whose side is rotatably connected to the other two pillars (13), forming a lever structure; One end of the second connecting rod (5) is provided with a long groove one, and one end of the second connecting rod (5) is provided with a long groove two, a movable shaft (11) is passed through the long groove one and the long groove two, and both ends of the movable shaft (11) are respectively connected to a movable frame (9), and the movable frame (9) is arranged between the two second upright posts (13); The part of the second connecting rod (5) and the third connecting rod (12) between the two second uprights (13) is a resistance arm, and the other part is a power arm, and the power arm is longer than the resistance arm.

3. The wind power torque energy saver according to claim 2, characterized in that, The top end of the movable frame (9) is connected to a guide structure; the guide structure comprises a guide rod (10) whose bottom end is vertically fixedly connected to the top end of the movable frame (9), a baffle (101) fixed to the other end of the guide rod (10), and a top frame (8) fixed to the two uprights (13); the guide rod (10) vertically moves through the top frame (8).

4. The wind power torque energy saver according to claim 3, characterized in that, The pulley assembly comprises a fixed pulley (7) fixed at the bottom end of the movable frame (9), a movable pulley (6) connected to the fixed pulley (7) via a pull rope (19), and a stretching cylinder (16) fixed at the bottom end of the movable pulley (6), one end of the pull rope (19) being connected to the bottom end of the fixed pulley (7), and the other end of the pull rope (19) passing through the movable pulley (6) and the fixed pulley (7) in sequence and being connected to the lower connecting rod structure.

5. A wind power torque energy saver according to claim 4, characterized in that, The lower connecting rod structure comprises a connecting rod one (3) having one end hingedly connected to the other end of the connecting rod two (5), a connecting rod four (15) having one end hingedly connected to the other end of the connecting rod three (12), a lifting column (18) hingedly connected to the other ends of the connecting rod one (3) and the connecting rod four (15), and one end of the lifting column (18) is fixedly connected to the other end of the pull rope (19).

6. The wind power torque energy saver according to claim 5, characterized in that, The side of the connecting rod 1 (3) is fixedly connected to a receiving box (2), and the receiving box (2) is provided with a plurality of positioning holes, and bolts are arranged in the positioning holes; A positioning seat (17) is fixed to the side of the connecting rod four. The positioning seat (17) is connected to the bottom end of the robotic arm. A gripper is provided at the top end of the robotic arm, and the gripper is detachably connected to the bolt.

7. The wind power torque energy saver according to claim 6, characterized in that, One side of the second column (13) is fixedly connected to one end of the fixed column (14), and the other end of the fixed column (14) is detachably connected to the gripper.

8. A wind power torque energy saver according to claim 4, characterized in that, There are multiple fixed pulleys (7) and multiple movable pulleys (6) respectively.

9. The wind power torque energy saver according to claim 5, characterized in that, The other end of the lifting column (18) is connected to the force application system.

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