Flexible transmission device

Abstract

The utility model relates to the technical field of generator transmission, and aims to provide a flexible transmission device. The flexible transmission device can elastically buffer power input into the speed increasing box, and parts in the speed increasing box are prevented from being damaged. The flexible transmission device comprises an input disc, an output disc, a buffering assembly and a transmission assembly, the buffer assembly comprises a mounting seat, a plurality of elastic buffer pieces and guide rods, the mounting seat is arranged on the output disc, the guide rods are arranged at intervals along the periphery of the mounting seat, and each guide rod is sleeved with the corresponding elastic buffer piece; the transmission assembly comprises multiple connecting piles and a transmission arm, the connecting piles are arranged on one side of the input disc, one end of the transmission arm is rotationally connected with the connecting piles, and the other end of the transmission arm is connected with the end, away from the mounting base, of the elastic buffering piece. The gearbox solves the problems that in the prior art, a gearbox is in rigid transmission, when an input shaft instantly bears too large torsion, all parts in the gearbox are damaged, and the gearbox fails and cannot work.

Description

Technical Field

[0001] The utility model relates to the technical field of generator transmission, in particular to a flexible transmission device. Background Art

[0002] A wind turbine is an electrical device that can convert wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. A wind turbine is generally composed of components such as a wind wheel, a generator, a rectifier, a tower, a speed limit safety mechanism and an energy storage device. The speed increaser is an indispensable transmission component for the generator to generate electricity. The speed increaser is generally equipped with a gear transmission system, and the gear transmission system has an input shaft at one end and an output shaft at the other end. The wind drives the wind wheel to rotate, and the power generated by the rotation of the wind wheel drives the input shaft to rotate. After the output speed is adjusted by the gear transmission system, the output shaft is connected to the generator, and the rotation of the output shaft drives the generator to generate electricity.

[0003] However, the existing speed increaser has a rigid transmission gear transmission system. If an unexpected situation occurs during the transmission operation and the input shaft is subjected to excessive torque in an instant, it will cause damage to the internal components, and then cause the speed increaser to fail and be unable to continue working. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the speed increaser in the prior art is a rigid transmission, and when the input shaft is subjected to excessive torque in an instant in an emergency, the internal components will be damaged, resulting in the speed increaser failing to continue to work, thereby providing a flexible transmission device, including:

[0005] Input disk;

[0006] an output disk, the output disk being arranged opposite to the input disk;

[0007] A buffer assembly, the buffer assembly comprising: a mounting seat, a plurality of elastic buffer members and a plurality of guide rods, the mounting seat being arranged on the output disk, a plurality of guide rods being arranged at intervals along the outer circumference of the mounting seat, and each guide rod being sleeved with one of the elastic buffer members;

[0008] A transmission assembly, the transmission assembly includes a plurality of connecting piles and transmission arms, and the number of the elastic buffer, the connecting piles and the transmission arms is equal, a plurality of the connecting piles are arranged at intervals along the edge of the input disk facing the output disk, one end of each transmission arm is rotatably connected to a connecting pile, and the other end is connected to an end of the elastic buffer away from the mounting seat.

[0009] Optionally, the transmission assembly also includes a plurality of sliders, a slider is provided at one end of each transmission arm away from the connecting pile, and the slider is slidably connected to the guide rod, one end of the elastic buffer on each guide rod is connected to the corresponding slider, and the other end is connected to the outer wall of the mounting seat.

[0010] Optionally, a connecting column is provided on the sliding block, and both ends of the transmission arm have through holes, the through hole at one end is rotatably connected to the connecting pile, and the through hole at the other end is rotatably connected to the connecting column.

[0011] Optionally, one end of the guide rod away from the mounting seat has a limiting portion protruding from the main body.

[0012] Optionally, the flexible transmission device further includes a limit assembly, which includes a plurality of limit blocks, the plurality of limit blocks are arranged at intervals along an edge of the output disk facing the input disk, and one limit block is arranged between two adjacent connecting piles.

[0013] Optionally, the input disk and the output disk are both circular disks with equal diameters, and the input disk and the output disk are coaxially arranged.

[0014] Optionally, the mounting seat is arranged at the center of the output disk, and a plurality of guide rods are arranged at equal angles along the outer circumference of the mounting seat.

[0015] Optionally, the mounting seat is in the shape of a regular prism, and the number of side edges is equal to the number of elastic buffer members.

[0016] Optionally, a plurality of the connection piles are arranged at equal angles along an edge of the input disk facing the output disk.

[0017] Optionally, a plurality of the limit blocks are arranged at equal angular intervals along an edge of the output disk on a side facing the input disk.

[0018] The utility model has the following advantages:

[0019] 1. The flexible transmission device provided by the utility model comprises: an input disc, an output disc, a buffer assembly and a transmission assembly. The input disc and the output disc are arranged relative to each other, the input disc is the power input end, and the output disc is the power output end, which can be connected to the input shaft of the speed increasing box. The buffer assembly comprises: a mounting seat, a plurality of elastic buffers and a plurality of guide rods, the mounting seat is arranged on the output disc, a plurality of guide rods are arranged at intervals along the outer periphery of the mounting seat, and each guide rod is sleeved with an elastic buffer. The transmission assembly comprises a plurality of connecting piles and a transmission arm, a plurality of connecting piles are arranged at intervals along the edge of the input disc facing the output disc, one end of each transmission arm is rotatably connected to a connecting pile, and the other end is connected to an end of an elastic buffer away from the mounting seat. The number of elastic buffers, guide rods, connecting piles and transmission arms is equal and correspondingly connected. When the wind drives the wind wheel to rotate, the wind wheel will drive the input disc to rotate, and the connecting pile will rotate synchronously with the input disc, and then drive the transmission arm to rotate. When the transmission arm starts to rotate, the end connected to the elastic buffer will first compress the elastic buffer along the axial direction of the guide rod. When the elastic buffer is compressed to a certain extent, the transmission arm, the guide rod and the mounting seat will serve as the force arm for the rotation of the output disc, driving the output disc to rotate, and then driving the input shaft of the speed increaser to rotate. The power of the input device will be buffered by the elastic buffer before being transmitted to the speed increaser through the output disc. It is a flexible transmission that can prevent the speed increaser from being subjected to large torque instantly, thereby protecting the working safety of the parts in the speed increaser and extending the service life of the speed increaser.

[0020] 2. The flexible transmission device provided by the utility model, the transmission assembly also includes a plurality of sliders, each transmission arm is provided with a slider at one end away from the connection pile, and the slider is slidably connected to the guide rod, and one end of the elastic buffer on each guide rod is connected to the corresponding slider, and the other end is connected to the outer wall of the mounting seat. The slider is provided to facilitate the connection between the transmission arm and the guide rod, and the slider can slide along the guide rod to compress the elastic buffer.

[0021] 3. In the flexible transmission device provided by the utility model, the end of the guide rod away from the mounting seat has a limiting portion protruding from the body, and the limiting portion can prevent the guide rod from being separated from the guide rod.

[0022] 4. The flexible transmission device provided by the utility model further includes a limit assembly, which includes a plurality of limit blocks, which are arranged at intervals along the edge of the output disk facing the input disk, and a limit block is arranged between two connecting piles. By setting the limit assembly, the rotation angle of the transmission arm can be limited to prevent the transmission arm from rotating excessively.

[0023] 5. The flexible transmission device provided by the utility model has an input disk and an output disk which are both circular disks with equal diameters and are coaxially arranged. The input disk and the output disk with the same diameter can make the momentum transmission between the two more stable.

[0024] 6. In the flexible transmission device provided by the utility model, a plurality of connecting piles are arranged at equal angles along the edge of the input disk toward the output disk. The connecting piles arranged at equal angles can form a firm connection with the transmission arm, and the transmission process is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the flexible transmission device of the utility model;

[0027] Figure 2 It is a schematic diagram of the input disc and the output disc of the flexible transmission device of the utility model after being separated;

[0028] Figure 3 It is a schematic diagram of the release state of the elastic buffer member in the buffer assembly of the flexible transmission device of the utility model;

[0029] Figure 4 It is a schematic diagram of the elastic buffer member in the buffer assembly of the flexible transmission device of the utility model in a compressed state;

[0030] Figure 5 It is an exploded schematic diagram of the flexible transmission device of the utility model.

[0031] Description of reference numerals:

[0032] 1. Input disk;

[0033] 2. Output disk;

[0034] 31. mounting seat, 32. elastic buffer, 33. guide rod;

[0035] 41. connecting pile, 42. transmission arm, 43. slider, 44. connecting column;

[0036] 51. Limit block. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 1 , Figure 2 As shown, it is a preferred embodiment of the flexible transmission device of the utility model. This flexible transmission device can be used to connect with a speed increasing box to buffer the power transmitted to the speed increasing box.

[0042] The above-mentioned flexible transmission device includes: an input disc 1, an output disc 2, a buffer assembly and a transmission assembly. The input disc 1 and the output disc 2 are arranged opposite to each other. The input disc 1 is the power input end. The power generated by the wind wheel drives the input disc 1 to rotate. The output disc 2 is the power output end and can be connected to the input shaft of the speed increaser. The buffer assembly includes: a mounting seat 31, a plurality of elastic buffers 32 and a plurality of guide rods 33. The mounting seat 31 is arranged on the output disc 2. The plurality of guide rods 33 are arranged at intervals along the outer periphery of the mounting seat 31. Each guide rod 33 is provided with an elastic buffer 32. The transmission assembly includes a plurality of connecting piles 41 and a transmission arm 42. A plurality of connecting piles 41 are arranged at intervals along the edge of the input disc 1 facing the output disc 2. One end of each transmission arm 42 is rotatably connected to a connecting pile 41, and the other end is connected to an end of an elastic buffer 32 away from the mounting seat 31. The number of elastic buffers 32, guide rods 33, connecting piles 41 and transmission arms 42 is equal and connected correspondingly, that is, each transmission arm 42 is connected to an elastic buffer 32 and a connecting pile 41, and each guide rod 33 is provided with an elastic buffer 32. When the wind drives the wind wheel to rotate, the power generated by the wind wheel will drive the input disc 1 to rotate, and the connecting pile 41 on the input disc 1 will rotate synchronously with the input disc 1. Then the connecting pile 41 will drive the transmission arm 42 to rotate. When the transmission arm 42 starts to rotate, the end connected to the elastic buffer 32 will first compress the elastic buffer 32 along the axial direction of the guide rod 33. When the elastic buffer 32 is compressed to a certain extent, the transmission arm 42, the guide rod 33 and the mounting seat 31 will serve as the force arm for the output disc to rotate. The transmission arm 42 continues to rotate and drives the mounting seat 31 to rotate, thereby realizing the rotation of the output disc 2, and the output disc 2 will output power to the input shaft of the speed increaser. The power input from the wind wheel to the flexible transmission device will be buffered by the elastic buffer 32 before being transmitted to the speed increaser, which is a flexible transmission. Therefore, the speed increasing box can be prevented from being subjected to a large torque instantly, thereby protecting the working safety of the components in the speed increasing box and extending the service life of the speed increasing box.

[0043] Furthermore, the input disk 1 and the output disk 2 are both circular disks, and the diameters of the circular disks are equal. The input disk 1 and the output disk 2 are also coaxially arranged. The input disk 1 and the output disk 2 having the same diameter can make the momentum transmission between the two more stable.

[0044] In other embodiments, the diameters of the input disk 1 and the output disk 2 may be unequal, for example, the diameter of the input disk 1 may be larger than the diameter of the output disk 2; the input disk 1 and the output disk 2 may not be circular disks, but disks of other shapes such as regular polygons.

[0045] A plurality of connection piles 41 are arranged at equal angles along the edge of the input disk 1 facing the output disk 2, and in this embodiment, there are five connection piles 41. That is, the angle formed by any two adjacent connection piles 41 and the center of the input disk 1 is 72°.

[0046] In other embodiments, the number of the connecting piles 41 may also be three, four, six, etc.

[0047] In other embodiments, the plurality of connection piles 41 may not be spaced at equal angles on the input disk 1 , that is, the angles formed between any two adjacent connection piles 41 and the center of the input disk 1 may be different.

[0048] Further, such as Figures 1 to 5 As shown, the transmission assembly further includes a slider 43, and each transmission arm 42 is provided with a slider 43 at one end away from the connection pile 41, that is, the number of the sliders 43 is equal to the number of the transmission arms 42. Specifically, in this embodiment, the number of the transmission arms 42 and the sliders 43 are both five.

[0049] The slider 43 is provided with a circular hole for sliding connection with the guide rod 33. The slider 43 is also provided with a connecting post 44. The transmission arm 42 has through holes at both ends, the through hole at one end is rotatably connected to the connecting post 41 on the input disk 1, and the through hole at the other end is rotatably connected to the connecting post 44 on the slider 43.

[0050] Further, the mounting seat 31 is in the shape of a regular prism, and the number of side edges is equal to the number of elastic buffers 32, and the number of guide rods 33 is also equal to the number of elastic buffers 32. Specifically, in this embodiment, the mounting seat 31 is in the shape of a regular pentagonal prism, fixedly arranged at the center of the output disk 2, and the number of guide rods 33 and elastic buffers 32 are both five. The guide rod 33 is a round rod, and the end thereof away from the mounting seat 31 has a limit portion protruding from the body, that is, the size of the limit portion is larger than the size of the rod body, and the limit portion can prevent the slider 43 from detaching from the guide rod 33. A guide rod 33 is arranged on each side of the mounting seat 31, and the guide rod 33 is arranged along the radial direction of the output disk 2. An elastic buffer 32 is sleeved on each guide rod 33, and the elastic buffer 32 is preferably a spring, one end of which is connected to the slider 43, and the other end is connected to the side wall of the mounting seat 31.

[0051] The flexible transmission device also includes a limit assembly, which includes a plurality of limit blocks 51, which are arranged at intervals along the edge of the output disk 2 facing the input disk 1, and a limit block 51 is arranged between two adjacent connecting piles 41. Specifically, in this embodiment, the plurality of limit blocks 51 are arranged at equal angles along the edge of the output disk 2 facing the input disk 1, and the limit blocks 51 are arranged at the edge of the output disk 2 along the axis extension direction of the guide rod 33. In this embodiment, the number of limit blocks 51 is the same as the number of connecting piles 41, which is also five. The limit blocks 51 are provided to limit the rotation angle of the transmission arm 42 to prevent the transmission arm 42 from excessive rotation.

[0052] The working process of the flexible transmission device provided in this embodiment is described as follows:

[0053] Under the action of external wind force, the wind wheel in the wind turbine generator is driven to rotate, and the power generated by the rotation of the wind wheel is transmitted to the input disk 1 to drive the input disk 1 to rotate. The connecting pile 41 set on the input disk 1 will rotate synchronously. When the connecting pile 41 rotates, it will apply a force to the transmission arm 42, and the transmission arm 42 will gradually rotate as a whole, and the two ends of the transmission arm 42 will rotate around the connecting pile 41 and the connecting column 44. During the initial process of rotation, the transmission arm 42 will apply a thrust to the slider 43, pushing the slider 43 to slide toward the side close to the mounting seat 31. The slider 43 will gradually compress the elastic buffer 32 during the sliding process on the guide rod 33. After the elastic buffer 32 is compressed to a certain extent, the transmission arm 42, the slider 43, the guide rod 33 and the mounting seat 31 will serve as the force arm for the rotation of the output disk, which can drive the mounting seat 31 to rotate quickly, thereby driving the output disk 2 to rotate, and then the power is transmitted to the input shaft of the speed increaser through the output disk 2. The speed increaser output shaft drives the generator to work, realizing wind power generation.

[0054] When the input power to the input disc 1 stops, the input disc 1 gradually stops rotating, and the compressed elastic buffer 32 is released and rebounds.

[0055] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A flexible transmission device, characterized in that: include: Input disk (1); an output disk (2), the output disk (2) being arranged opposite to the input disk (1); A buffer assembly, the buffer assembly comprising: a mounting seat (31), a plurality of elastic buffer members (32) and a plurality of guide rods (33), the mounting seat (31) being arranged on the output disk (2), the plurality of guide rods (33) being arranged at intervals along the outer circumference of the mounting seat (31), and each guide rod (33) being sleeved with one of the elastic buffer members (32); A transmission assembly, the transmission assembly comprising a plurality of connection piles (41) and transmission arms (42), wherein the elastic buffer (32), the connection piles (41) and the transmission arms (42) are equal in number, a plurality of the connection piles (41) are arranged at intervals along the edge of one side of the input disk (1) facing the output disk (2), one end of each transmission arm (42) is rotatably connected to one of the connection piles (41), and the other end is connected to one end of the elastic buffer (32) away from the mounting seat (31).

2. The flexible transmission device according to claim 1, characterized in that: The transmission assembly further comprises a plurality of sliders (43), one slider (43) being provided at one end of each transmission arm (42) away from the connection pile (41), and the slider (43) being slidably connected to the guide rod (33), one end of the elastic buffer (32) on each guide rod (33) being connected to the corresponding slider (43), and the other end being connected to the outer wall of the mounting seat (31).

3. The flexible transmission device according to claim 2, characterized in that: The slider (43) is provided with a connecting column (44), and the transmission arm (42) has through holes at both ends, the through hole at one end is rotatably connected to the connecting pile (41), and the through hole at the other end is rotatably connected to the connecting column (44).

4. The flexible transmission device according to claim 3, characterized in that: One end of the guide rod (33) away from the mounting seat (31) has a limiting portion protruding from the body.

5. The flexible transmission device according to claim 2, characterized in that: It also comprises a limiting assembly, the limiting assembly comprising a plurality of limiting blocks (51), the plurality of limiting blocks (51) being arranged at intervals along the edge of the output disk (2) on one side facing the input disk (1), and one limiting block (51) being arranged between two adjacent connecting piles (41).

6. The flexible transmission device according to claim 5, characterized in that: The input disc (1) and the output disc (2) are both circular discs with the same diameter, and the input disc (1) and the output disc (2) are coaxially arranged.

7. The flexible transmission device according to claim 6, characterized in that: The mounting seat (31) is arranged at the center of the output disk (2), and a plurality of guide rods (33) are arranged at equal angles along the outer circumference of the mounting seat (31).

8. The flexible transmission device according to claim 7, characterized in that: The mounting seat (31) is in the shape of a regular prism, and the number of side edges is equal to the number of elastic buffer members (32).

9. The flexible transmission device according to claim 6, characterized in that: The plurality of connection piles (41) are arranged at equal angles along the edge of the input disk (1) on one side facing the output disk (2).

10. The flexible transmission device according to claim 9, characterized in that: The plurality of limit blocks (51) are arranged at equal angular intervals along the edge of the output disk (2) on one side facing the input disk (1).

Images