Fan coupling elastic piece with buffering protection function

Abstract

The invention relates to the technical field of wind power generation, and discloses a fan coupling shrapnel with a buffer protection function, the fan coupling shrapnel comprises a turntable, second dampers are fixed on the other two inner walls of the turntable, one side of each second damper is connected with a second abutting sheet through a second buffer spring, and the other side of each second damper is connected with a second abutting sheet through a second buffer spring. The extrusion block is located between the first abutting piece and the second abutting piece. According to the fan coupling elastic piece with the buffering protection function, when the connecting sleeve rotates and starts, an extrusion block extrudes a first abutting piece, the buffering effect can be achieved by using a first damper and a first buffering compression spring in a matched mode, a first piston is extruded to move and be locked, and when the extrusion block and the first abutting piece reset, a check block can automatically block the first abutting piece; afterwards, the connecting sleeve rotates to drive the rotating disc to rotate normally, when the connecting sleeve stops rotating, the rotating disc continues to rotate under the action of inertia, the buffering effect can be achieved by using a second damper and a second buffering spring in a matched mode, and the effect of buffering impact force is achieved in the starting and braking process.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, in particular to a fan coupling shrapnel with a buffer protection function. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. The working principle of a wind turbine is relatively simple. The wind wheel rotates under the action of wind force, and it converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates and generates electricity driven by the wind wheel shaft.

[0003] When the existing wind turbine is generating wind power, during the process of starting and braking, under the action of strong force, the transmission effect is relatively rapid, the transmission burden is heavy, it is easy to cause damage to components, and the protection effect is poor. In view of the above problems, it is necessary to improve the existing equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a fan coupling spring with a buffer protection function to solve the problem that the existing fan proposed in the above background technology has a relatively rapid transmission effect and a heavy transmission burden under the action of strong force during the starting and braking process when performing wind power generation, which easily causes damage to components and has a poor protection effect.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a fan coupling spring with a buffer protection function, comprising a turntable, a first groove is provided on one side of the turntable, a connecting sleeve is rotatably connected in the first groove, extrusion blocks are symmetrically fixed on both sides of the connecting sleeve, a connecting block is fixed on the other side of the turntable, and a second mounting hole is provided on the outer side of the connecting block.

[0006] A blocking mechanism is provided on the inner wall of the turntable, and a first damper is fixed on two of the inner walls of the turntable, one side of the first damper is connected to the first push piece through a first buffer compression spring, and a second damper is fixed on the other two inner walls of the turntable, one side of the second damper is connected to the second push piece through a second buffer spring, and the extrusion block is located between the first push piece and the second push piece.

[0007] Preferably, a first mounting hole is provided on the outer side of the connecting sleeve, a first clamping groove is provided on the inner wall of the connecting sleeve, and the first clamping groove is evenly distributed on the connecting sleeve in the circumferential direction.

[0008] Preferably, the blocking mechanism comprises a first oil groove, and the first oil groove is opened on two inner walls of the turntable, a first piston is slidably connected in the first oil groove, and a second clamping groove is opened on one side of the first piston.

[0009] Preferably, a second oil groove is opened on both inner walls of the turntable, and the second oil groove is connected with the first oil groove through a first connecting pipe, a tension spring is fixed in the second oil groove, and a second piston is fixed at the inner end of the tension spring, and the second piston is slidably connected in the second oil groove.

[0010] Preferably, a first compression spring is fixed on the inner wall of the second piston, and a stopper is fixed on the inner end of the first compression spring, and the stopper is slidably connected in the second piston.

[0011] Preferably, two second connecting pipes are fixed inside the side wall of the turntable, a third oil groove is opened on the inner wall of the first oil groove, and the outer end of the second connecting pipe is connected to the third oil groove through the third connecting pipe.

[0012] Preferably, a second compression spring is fixed in the third oil groove, and a third piston is fixed to one end of the second compression spring. The third piston is slidably connected in the third oil groove, and a clamping block is fixed to one side of the third piston.

[0013] Preferably, a second groove is opened in one side wall of the turntable, and an oil cylinder is fixed in the second groove, and the oil cylinder is fixed between the inner ends of the two second connecting pipes.

[0014] Preferably, a fourth piston is slidably connected in the oil cylinder, and a movable frame is fixed to one side of the fourth piston, the movable frame passes through one side of the oil cylinder, an electric telescopic rod is fixed in the second groove, and the telescopic end of the electric telescopic rod rests on the inner wall of the movable frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The fan coupling shrapnel with buffer protection function can achieve the purpose of buffer protection through the coordinated use of the turntable, connecting sleeve, extrusion block, connecting block, first piston, stopper, first damper, first buffer compression spring, second damper and second buffer spring. The hub flange of the fan blade is installed on the connecting sleeve, and the generator shaft is installed on the connecting block. The rotation of the fan drives the generator shaft to rotate. When the connecting sleeve rotates to start, the extrusion block squeezes the first stopper, and the first damper and the first buffer compression spring are used together to achieve a buffering effect. The first piston is squeezed and moved and locked. When the extrusion block and the first stopper are reset, the stopper will automatically block the first stopper. After that, the rotation of the connecting sleeve can drive the turntable to rotate normally. When the connecting sleeve stops rotating, the turntable continues to rotate under the action of inertia. At this time, the extrusion block squeezes the second stopper, and the second damper and the second buffer spring are used together to achieve a buffering effect. The device plays a role in buffering impact force during starting and braking.

[0017] 2. The fan coupling spring with buffer protection function can achieve the purpose of convenient resetting through the coordinated use of the first piston, the second slot, the second piston, the third piston, the block, the fourth piston, the movable frame and the electric telescopic rod. After using the device, the electric telescopic rod extends and pushes the movable frame and the fourth piston to move, the third piston and the block move, and the block leaves the second slot, thereby unlocking the first piston, and then the first piston and the second piston automatically reset, which is convenient for removing the obstruction to the first stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention;

[0019] Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0020] Figure 3 It is a left-side cross-sectional structural schematic diagram of the present invention;

[0021] Figure 4 It is a front cross-sectional structural schematic diagram of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection structure between the turntable and the blocking mechanism of the present invention;

[0023] Figure 6 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1, turntable; 2, first groove; 3, connecting sleeve; 4, first mounting hole; 5, first clamping groove; 6, extrusion block; 7, connecting block; 8, second mounting hole; 9, blocking mechanism; 901, first oil groove; 902, first piston; 903, second clamping groove; 904, first connecting pipe; 905, second oil groove; 906, tension spring; 907, second piston; 908, first compression spring; 909, blocking block; 910, second connecting pipe; 911, third connecting pipe; 912, third oil groove; 913, second compression spring; 914, third piston; 915, clamping block; 10, second groove; 11, oil cylinder; 12, fourth piston; 13, moving frame; 14, electric telescopic rod; 15, first damper; 16, first retaining plate; 17, first buffer compression spring; 18, second damper; 19, second retaining plate; 20, second buffer spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 6 The present invention provides a technical solution: a fan coupling spring with a buffer protection function, comprising a turntable 1, a first groove 2 is opened on one side of the turntable 1, a connecting sleeve 3 is rotatably connected in the first groove 2, extrusion blocks 6 are symmetrically fixed on both sides of the connecting sleeve 3, a connecting block 7 is fixed on the other side of the turntable 1, and a second mounting hole 8 is opened on the outer side of the connecting block 7.

[0027] A blocking mechanism 9 is provided on the inner wall of the turntable 1, and a first damper 15 is fixed on two of the inner walls of the turntable 1, one side of the first damper 15 is connected to the first butt plate 16 through a first buffer compression spring 17, and a second damper 18 is fixed on the other two inner walls of the turntable 1, one side of the second damper 18 is connected to the second butt plate 19 through a second buffer spring 20, and the extrusion block 6 is located between the first butt plate 16 and the second butt plate 19.

[0028] In this embodiment, Figure 1 and Figure 4 As shown, a first mounting hole 4 is provided on the outer side of the connecting sleeve 3, a first slot 5 is provided on the inner wall of the connecting sleeve 3, and the first slots 5 are evenly distributed on the connecting sleeve 3 in the circumferential direction. When the hub flange of the wind turbine blade is inserted into the connecting sleeve 3, the hub flange of the wind turbine blade is stuck in the first slot 5, and then the hub flange of the wind turbine blade can be fixed to the connecting sleeve 3 by using the first mounting hole 4 and external bolts. After that, the rotation of the wind turbine can drive the connecting sleeve 3 to rotate, and the power generation equipment can be installed on the turntable 1. The rotation of the connecting sleeve 3 can drive the turntable 1 to rotate, thereby driving the generator shaft to rotate.

[0029] In this embodiment, Figure 2 , Figure 3 and Figure 5 As shown, the blocking mechanism 9 includes a first oil groove 901, and the first oil groove 901 is opened on the two inner walls of the turntable 1, and a first piston 902 is slidably connected in the first oil groove 901, and a second groove 903 is opened on one side of the first piston 902. When the first oil groove 901 and the extrusion block 6 rotate together with the connecting sleeve 3 and squeeze the first contact piece 16, the first piston 902 moves under the extrusion action of the first contact piece 16 and the extrusion block 6, so as to facilitate the hydraulic oil in the first oil groove 901 to be pressed away.

[0030] In this embodiment, Figure 2 , Figure 3and Figure 5 As shown, second oil grooves 905 are provided on both inner walls of the turntable 1, and the second oil grooves 905 are connected with the first oil grooves 901 through the first connecting pipe 904. A tension spring 906 is fixed in the second oil groove 905, and a second piston 907 is fixed to the inner end of the tension spring 906. The second piston 907 is slidably connected in the second oil groove 905. The first connecting pipe 904 serves to connect the second oil groove 905 and the first oil groove 901. When the first piston 902 is squeezed and moved, the second piston 907 can move under the action of oil pressure.

[0031] In this embodiment, Figure 3 and Figure 5 As shown, a first compression spring 908 is fixed on the inner wall of the second piston 907, and a stopper 909 is fixed on the inner end of the first compression spring 908. The stopper 909 is slidably connected in the second piston 907, and the first compression spring 908 supports the stopper 909. After the first push piece 16 and the extrusion block 6 squeeze the first piston 902 and pass over the stopper 909, the stopper 909 extends out from the second oil groove 905. After the first push piece 16 and the extrusion block 6 are reset and pass over the stopper 909, the stopper 909 automatically blocks the first push piece 16.

[0032] In this embodiment, Figure 3 , Figure 5 and Figure 6 As shown, two second connecting pipes 910 are fixed inside the side wall of the turntable 1, a third oil groove 912 is opened on the inner wall of the first oil groove 901, and the outer end of the second connecting pipe 910 is connected to the third oil groove 912 through the third connecting pipe 911. The third connecting pipe 911 serves to connect the second connecting pipe 910 and the third oil groove 912.

[0033] In this embodiment, Figure 3 and Figure 5 As shown, a second compression spring 913 is fixed in the third oil groove 912, and a third piston 914 is fixed at one end of the second compression spring 913. The third piston 914 is slidably connected in the third oil groove 912, and a clamping block 915 is fixed on one side of the third piston 914. The second compression spring 913 supports the third piston 914 and the clamping block 915. When the first piston 902 is squeezed and moves to the bottom, the clamping block 915 is automatically clamped into the second clamping groove 903, so as to automatically lock the first piston 902.

[0034] In this embodiment, Figure 3 and Figure 6As shown, a second groove 10 is opened in one side wall of the turntable 1, and an oil cylinder 11 is fixed in the second groove 10. The oil cylinder 11 is fixed between the inner ends of the two second connecting pipes 910. Hydraulic oil is stored in the third oil groove 912. When the oil cylinder 11 is pumping oil, the hydraulic oil in the third oil groove 912 will be pumped into the oil cylinder 11 through the third connecting pipe 911 and the second connecting pipe 910.

[0035] In this embodiment, Figure 3 and Figure 6 As shown, a fourth piston 12 is slidably connected in the oil cylinder 11, and a movable frame 13 is fixed to one side of the fourth piston 12, and the movable frame 13 passes through one side of the oil cylinder 11, and an electric telescopic rod 14 is fixed in the second groove 10, and the telescopic end of the electric telescopic rod 14 abuts against the inner wall of the movable frame 13. When the electric telescopic rod 14 is extended, it pushes the movable frame 13 to move, and the fourth piston 12 moves accordingly, so that the hydraulic oil in the third oil groove 912 is conveniently pumped into the oil cylinder 11, and the third piston 914 and the block 915 move. After the block 915 leaves the second slot 903, the first piston 902 can be unlocked, and the first piston 902 can be automatically reset.

[0036] The use method and advantages of the present invention: The fan coupling shrapnel with buffer protection function has the following working process:

[0037] like Figures 1 to 6 As shown: the device is used for wind power generation of Su Silan S82-1500 wind turbine. First, the hub flange of the wind turbine blade is installed on the connecting sleeve 3, and the hub flange of the wind turbine blade is stuck in the first slot 5. At the same time, the generator shaft is installed on the connecting block 7. The rotation of the wind turbine drives the connecting sleeve 3 to rotate, thereby driving the turntable 1 and the connecting block 7 to rotate, thereby driving the generator shaft to rotate. The connecting sleeve 3 rotates together with the hub flange of the wind turbine blade. When starting, the extrusion block 6 squeezes the first push piece 16 to move. The first damper 15 and the first buffer compression spring 17 can achieve a buffering effect. The first push piece 16 and the extrusion block 6 squeeze the first piston 902 to move, and the block 915 is finally stuck in the second slot 903 and locks the first piston 902. The extrusion block 6 passes over the block 909, the block 909 automatically extends out, the first butt piece 16 and the extrusion block 6 reset and pass over the block 909, the block 909 automatically blocks the first butt piece 16, and then the connecting sleeve 3 rotates to drive the turntable 1 to rotate normally. When the connecting sleeve 3 stops rotating and brakes, the turntable 1 continues to rotate under the action of inertia, the turntable 1 rotates relative to the connecting sleeve 3, the extrusion block 6 and the second butt piece 19 are relatively squeezed, and the second damper 18 and the second buffer spring 20 are used in combination to achieve a buffering effect. After each use of the device, the electric telescopic rod 14 extends, thereby pushing the moving frame 13 and the fourth piston 12 to move, the third piston 914 and the block 915 move and unlock the first piston 902, and the first piston 902 and the second piston 907 automatically reset.

[0038] In summary, the fan coupling shrapnel with buffer protection function achieves the purpose of buffer protection and convenient resetting, and meets people's use needs.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0040] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fan coupling spring with a buffer protection function, comprising a rotating disk (1), characterized in that: A first groove (2) is provided on one side of the rotating disk (1), a connecting sleeve (3) is rotatably connected in the first groove (2), extrusion blocks (6) are symmetrically fixed on both sides of the connecting sleeve (3), a connecting block (7) is fixed on the other side of the rotating disk (1), and a second mounting hole (8) is provided on the outer side of the connecting block (7); A blocking mechanism (9) is provided on the inner wall of the turntable (1); a first damper (15) is fixed on two of the inner walls of the turntable (1); one side of the first damper (15) is connected to a first push plate (16) via a first buffer compression spring (17); a second damper (18) is fixed on the other two inner walls of the turntable (1); one side of the second damper (18) is connected to a second push plate (19) via a second buffer spring (20); and the extrusion block (6) is located between the first push plate (16) and the second push plate (19).

2. The fan coupling spring with buffer protection function according to claim 1, characterized in that: A first mounting hole (4) is provided on the outer side of the connecting sleeve (3), a first clamping groove (5) is provided on the inner wall of the connecting sleeve (3), and the first clamping grooves (5) are evenly distributed on the connecting sleeve (3) in the circumferential direction.

3. The fan coupling spring with buffer protection function according to claim 1, characterized in that: The blocking mechanism (9) comprises a first oil groove (901), and the first oil groove (901) is provided on two inner walls of the rotating disk (1), a first piston (902) is slidably connected in the first oil groove (901), and a second clamping groove (903) is provided on one side of the first piston (902).

4. The fan coupling spring with buffer protection function according to claim 3, characterized in that: A second oil groove (905) is provided on both inner walls of the turntable (1), and the second oil groove (905) is connected to the first oil groove (901) through a first connecting pipe (904). A tension spring (906) is fixed in the second oil groove (905), and a second piston (907) is fixed at the inner end of the tension spring (906). The second piston (907) is slidably connected in the second oil groove (905).

5. The fan coupling spring with buffer protection function according to claim 4, characterized in that: A first compression spring (908) is fixed on the inner wall of the second piston (907), and a stopper (909) is fixed on the inner end of the first compression spring (908), and the stopper (909) is slidably connected in the second piston (907).

6. The fan coupling spring with buffer protection function according to claim 3, characterized in that: Two second connecting pipes (910) are fixed inside the side wall of the rotating disk (1), a third oil groove (912) is opened on the inner wall of the first oil groove (901), and the outer end of the second connecting pipe (910) is connected to the third oil groove (912) through the third connecting pipe (911).

7. The fan coupling spring with buffer protection function according to claim 6, characterized in that: A second compression spring (913) is fixed in the third oil groove (912), and a third piston (914) is fixed at one end of the second compression spring (913). The third piston (914) is slidably connected in the third oil groove (912), and a clamping block (915) is fixed on one side of the third piston (914).

8. The fan coupling spring with buffer protection function according to claim 6, characterized in that: A second groove (10) is provided in one side wall of the rotating disk (1), and an oil cylinder (11) is fixed in the second groove (10), wherein the oil cylinder (11) is fixed between the inner ends of the two second connecting pipes (910).

9. The fan coupling spring with buffer protection function according to claim 8, characterized in that: A fourth piston (12) is slidably connected in the oil cylinder (11), and a movable frame (13) is fixed to one side of the fourth piston (12). The movable frame (13) passes through one side of the oil cylinder (11). An electric telescopic rod (14) is fixed in the second groove (10), and the telescopic end of the electric telescopic rod (14) abuts against the inner wall of the movable frame (13).

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