Novel wind power generation speed-increasing transmission device

Abstract

A novel wind power generation speed-increasing transmission device comprises an input shaft, a shock wave disc, a movable tooth disc and a gear ring, an eccentric wheel is machined on the input shaft, the eccentric distance between the eccentric wheel and the input shaft is e, a shock wave bearing is installed on the outer side of the eccentric wheel, the shock wave disc is connected to the outer side of the shock wave bearing, and movable teeth are installed on the outer ring of the shock wave disc. The gear ring is arranged on the outer side of the movable teeth in a sleeving mode, an inner gear ring meshed with the movable teeth is machined on an inner ring of the gear ring, a movable tooth disc A and a movable tooth disc B are arranged on the two sides of the shock wave disc, a plurality of step cylinders are machined on the movable tooth disc A, mounting holes are machined in the movable tooth disc B, and the step cylinders penetrate into the mounting holes and are locked through screws; round holes are machined in the shock wave disc, the step cylinders penetrate through the round holes, and the number of the round holes is the same as that of the step cylinders. The radial gap and the lateral gap between the circular hole and the stepped cylinder in the circular hole are both larger than two times of the eccentric distance e. The oscillating tooth transmission device is simple in structure, and the application range of oscillating tooth transmission is expanded.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, specifically to a novel wind power generation speed-up transmission device. Background Technology

[0002] Existing wind turbine gearboxes generally use multi-stage planetary gears to achieve speed increase transmission. Their specific structure is as follows: within a housing consisting of end plates, a gear ring, and partitions, the planetary carrier for fixing the star wheel shaft is a double-end plate structure rigidly connected by two end plates and connecting parts. The two ends of the star wheel shaft are fixed in the shaft holes of the front and rear end plates, respectively. The planetary gears mounted on the star wheel shaft are clamped between the two end plates. The front and rear end plates are respectively mounted and fixed to the end plates or the middle partition of the gearbox via bearings. Because wind turbine gearboxes have a large transmission ratio, they generally use a multi-stage planetary gear series structure. This makes the gearbox structure too complex and bulky, unnecessarily increasing its size and weight, which not only increases manufacturing and installation costs but also hinders the miniaturization of wind turbines.

[0003] Precision transmission devices are the foundation of high-end equipment, and the development of precision transmission technology inevitably drives the progress of high-end manufacturing. In high-end manufacturing, the articulated arms of industrial robots place higher technical demands on precision rotary transmissions. The articulated arms of industrial robots require reducers with small size, high transmission ratios, and high load capacities. Speed ​​increasers in wind power generation systems require a transmission device with a high reduction ratio, high efficiency, low cost, and low weight. Therefore, developing a small-sized, high-precision, high-speed-ratio transmission device has become essential.

[0004] As a high-performance transmission mechanism, the movable gear transmission has been widely used in the fields of general-purpose reducers and precision robot reducers, and its performance has been proven by comparative tests and practical applications by professional companies both domestically and internationally. A Chinese invention patent from 1991, numbered ZL91101060.2 and entitled "Full Roller Movable Gear Transmission," proposed a novel fully rolling movable gear transmission. This transmission mainly consists of three parts: a fixed gear G, a movable gear H, and a shock wave generator J. The movable gear employs a rolling force transmission structure to achieve the full rolling movable gear transmission, as shown below. Figure 1 As shown, in this structure, two movable tooth half-discs HA and HB are connected by screws through holes in their respective fan-shaped protrusions and corresponding threaded holes. A locating pin, along with a stop on the disc, is installed in one of the holes to accurately position the two movable tooth half-discs HA and HB, forming a movable tooth disc. This invention solved the problem of sliding friction between force transmission components in all kinds of movable tooth transmissions at the time, making movable tooth transmission a truly universal mechanical transmission technology with high transmission efficiency, large load-bearing capacity, large transmission ratio, small size, and light weight. However, in practice, it was also found that the above-mentioned movable tooth transmission has significant structural limitations, thus restricting the full realization of its advantages. In the technology disclosed in the above patent, the movable tooth disc is composed of...Figure 1 The HA and HB components shown are composed of a pin shaft groove for rolling of the movable tooth pin shaft, and after leaving space for movement of the shock wave device and the roller groove, the two half-discs can only be connected by a hole in the disc through the fan-shaped protrusion and a screw. This structure is very successful when used in small and medium transmission ratios. However, when the transmission ratio increases, the movable teeth are small and numerous, and the fan-shaped protrusion is also reduced to the extent that connection cannot be achieved. This limits the application range of this patented technology, especially in the use of micro transmission.

[0005] For example, Patent No. ZL200820126411.5, entitled "New Structure of Rod-Passing Movable Tooth Transmission", is an improvement on the above-mentioned defects, and proposes a rod-passing movable tooth transmission, as shown in Figure 2 The movable tooth rack of the movable tooth gear in the device is composed of a set of rods and one or more sets of movable tooth half-discs with pin shaft grooves and rod holes, and is connected by the rods passing through the large holes in the shock disc. This overcomes the disadvantage that the original movable tooth rack cannot achieve large speed ratio transmission by direct connection of the two half-discs with screws. This makes the full-rolling movable tooth transmission with high efficiency, high load capacity, small size, and light weight more widely applicable. However, it is found in practice that this structure has its limitations, increases the number of device parts and the precision of cooperation, and increases the difficulty of part processing, which is not conducive to making high-precision reducers, thereby limiting the application of this technology in the field of high-precision mechanical transmission and wind power generation. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a novel wind power generation speed-increasing transmission device in view of the above-mentioned deficiencies of the prior art.

[0007] To solve the above-mentioned technical problem, the utility model adopts the technical scheme of:

[0008] A novel wind power generation speed-increasing transmission device, comprising an input shaft, a shock disc, a movable tooth disc, and a gear ring, an eccentric wheel is machined on the input shaft, the eccentric distance between the eccentric wheel and the input shaft is e, a shock bearing is installed outside the eccentric wheel, the shock disc is connected outside the shock bearing, a plurality of movable tooth grooves are machined on the outer ring of the shock disc, movable teeth are installed at the movable tooth grooves, the gear ring is sleeved outside the movable teeth, an inner gear ring meshing with the movable teeth is machined on the inner ring of the gear ring, movable tooth discs A and B are arranged on the two sides of the shock disc, a plurality of stepped cylinders are machined on the movable tooth disc A, installation holes are machined on the movable tooth disc B, the stepped cylinders are inserted into the installation holes and locked by screws; a circular hole is machined on the shock disc, the stepped cylinders pass through the circular hole, the number of the circular holes is the same as the number of the stepped cylinders; the radial clearance and the lateral clearance of the circular hole and the stepped cylinder inside the circular hole are both greater than 2 times the eccentric distance e.

[0009] Further, the movable tooth disc A and the movable tooth disc B are provided with a bearing one between the input shaft, the bearing one is sleeved on the input shaft, the bearing one is provided with a check ring between the eccentric wheel, the check ring clamps the shock wave bearing, the other side of the bearing one is provided with a snap ring and a nut, and the nut locks the bearing one.

[0010] Further, the movable tooth disc A and the movable tooth disc B are provided with a bearing one between the input shaft, the bearing one is sleeved on the input shaft, the bearing one is provided with a check ring between the eccentric wheel, the check ring clamps the shock wave bearing, the other side of the bearing one is provided with a snap ring and a nut, and the nut locks the bearing one.

[0011] Further, the movable tooth disc A and the movable tooth disc B are provided with a bearing one between the input shaft, the bearing one is sleeved on the input shaft, the bearing one is provided with a check ring between the eccentric wheel, the check ring clamps the shock wave bearing, the other side of the bearing one is provided with a snap ring and a nut, and the nut locks the bearing one.

[0012] Further, the movable tooth disc A and the movable tooth disc B are provided with a bearing one between the input shaft, the bearing one is sleeved on the input shaft, the bearing one is provided with a check ring between the eccentric wheel, the check ring clamps the shock wave bearing, the other side of the bearing one is provided with a snap ring and a nut, and the nut locks the bearing one.

[0013] Compared with the prior art, the novel wind power generation speed increasing transmission device cancels the original fan-shaped protrusion, adopts a stepped cylinder to replace a rod penetrating positioning connection, has simple structure, expands the application range of the movable tooth transmission, and is especially suitable for use on a wind power generation speed increasing box. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of an existing full roller movable tooth transmission device;

[0015] Figure 2 It is a structural schematic view of an existing rod penetrating movable tooth transmission new structure device;

[0016] Figure 3 It is a structural schematic view of the utility model;

[0017] Figure 4 It is a structural schematic view of the movable tooth disc A of the utility model;

[0018] Figure 5 It is a structural schematic view of the embodiment;

[0019] Figure 6 It is Figure 5 It is a sectional view at D-D in Fig. 1;

[0020] The components are as follows: 1. Input shaft; 2. Shock disk; 3. Hinged disc; 4. Gear ring; 5. Eccentric wheel; 6. Shock bearing; 7. Hinged tooth; 8. Circular hole; 9. Bearing one; 10. Retaining ring; 11. Snap ring; 12. Nut; 13. Bearing two; 14. Output disk; 15. First protruding part; 16. Sealing ring one; 17. Front end cover; 18. Bearing seat; 19. Second protruding part; 20. Rear end cover; 21. Sealing ring two; 31. Hinged disc A; 32. Hinged tooth. Disc B, 33, stepped cylinder, 100, live gear output shaft, 200, shock wave disc, 300, live gear A disc, 400, live gear B disc, 500, gear ring, 600, eccentric wheel, 700, intermediate gear disc, 800, tapered roller bearing, 900, live gear, 1000, first bearing housing, 1100, second bearing housing, 1200, extension, 1300, gearbox cover, 1400, high-speed output shaft, 1500, large gear, 1600, small gear. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0022] like Figures 3-4 As shown, a novel wind power generation speed-increasing transmission device includes an input shaft 1, a shock disk 2, a movable gear disk 3, and a gear ring 4. An eccentric wheel 5 is machined on the input shaft 1, with an eccentricity e between the eccentric wheel 5 and the input shaft 1. A shock bearing 6 is mounted on the outer side of the eccentric wheel 5, and the shock disk 2 is connected to the outer side of the shock bearing 6. Several movable gear grooves are machined on the outer ring of the shock disk 2, and movable teeth 7 are installed in the movable gear grooves. The movable teeth 7 can be ball bearings, rollers, or sprockets. The gear ring 4 is fitted around the outer side of the movable teeth 7, and an internal gear ring that meshes with the movable teeth 7 is machined on the inner ring of the gear ring 4. Movable gear disks A31 and B32 are respectively arranged on both sides of the shock disk 2. 2. The two are interconnected. The movable gear disk A31 is machined with multiple stepped cylinders 33, and the movable gear disk B32 is machined with mounting holes. The stepped cylinders 33 are inserted into the mounting holes and locked with screws. The number of stepped cylinders 33 is determined according to the size of the shock generator and the movable gear disk. Generally, 2-12 stepped cylinders can be arranged, usually an even number. Two of the stepped cylinders are used for positioning and then locked with screws. The shock disk 2 is machined with circular holes 8, and the stepped cylinders 33 pass through the circular holes 8. The number of circular holes 8 is the same as the number of stepped cylinders 33. The radial clearance and lateral clearance between the circular holes 8 and the stepped cylinders 33 in the circular holes are both greater than twice the eccentricity e.

[0023] The bearing one 9 is sleeved on the input shaft 1, the bearing one 9 is provided with the retaining ring 10 between the eccentric wheel 5, the retaining ring 10 clamps the shock wave bearing 6, the other side of the bearing one 9 is provided with the snap ring 11 and the nut 12, and the nut 12 locks the bearing one 9.

[0024] The bearing two 13 is installed between the gear ring 4 and the movable tooth disc A31 and movable tooth disc B32, the bearing two 13 blocks the movable tooth 7, the output disc 14 is installed on the movable tooth disc A31 side through a screw, the first protruding part 15 is machined on the periphery of the output disc 14 and blocks the bearing two 13 on one side of the movable tooth disc A31, the sealing ring one 16 is installed between the first protruding part 15 and the gear ring 4, a connecting hole is machined in the output disc 14, the front end cover 17 is installed in the connecting hole, the front end cover 17 plays a shielding role, the bearing seat 18 is installed on the movable tooth disc B side, the second protruding part 19 is machined on the periphery of the bearing seat 18 and blocks the bearing two 13 on one side of the movable tooth disc B32, the rear end cover 20 is installed on the gear ring 4 side, a through hole is machined in the rear end cover 20, the input shaft 1 passes through the through hole, the sealing ring two 21 is arranged between the input shaft 1 and the rear end cover 20, in working, the rotation of the input shaft leads to the rotation of the shock wave device, the movable tooth is engaged with the gear ring, the movable tooth drives the movable tooth disc to make a deceleration movement, and finally the output disc outputs, of course, the output disc can also rotate to make an acceleration movement.

[0025] The movable tooth disc and the original rod are replaced by the integral movable tooth disc, that is to say, a plurality of stepped cylinders are arranged on the movable tooth disc, the independent fan-shaped protrusions are cancelled, and the rod is machined on the movable tooth disc, so that the structure is simple, the application range of the movable tooth transmission is enlarged, the range of the transmission ratio is enlarged, the two movable tooth half discs are connected by a group of screws from the same circumference of the movable tooth roller, the movable tooth diameter cannot be too small, the movable tooth number cannot be too many, and the speed ratio of the movable tooth transmission cannot be too large, the general speed ratio is below 20, and the ideal speed ratio is below 20, after the design of the utility model is adopted, one of the two movable tooth half discs, that is, the stepped cylinder of the movable tooth disc A and the movable tooth disc B, is connected with the other movable tooth half disc by penetrating the hole on the shock wave device, so that the movable tooth roller can be designed to be small and many, and the range of the transmission ratio is enlarged, the single-stage transmission ratio can be increased to 70 to 100, the structure of the movable tooth disc is simplified, the original movable tooth disc is composed of the movable tooth half disc and the movable tooth disc, the structure of the positioning stop, the fan-shaped protrusion and the connecting screw hole is arranged between the two discs, however, one of the two movable tooth half discs protrudes a stepped cylinder and is connected with the other half disc by penetrating the hole on the shock wave device, and the two stepped cylinders can be selected as the positioning, the manufacturing difficulty is reduced, the number of parts is also reduced, and the assembly is simplified.

[0026] Embodiment

[0027] To transmit greater torque and balance internal forces to reduce vibration, this invention can also employ two or more rows of live gear drives connected in series, with each row symmetrically distributed circumferentially, such as... Figure 5 As shown, in this embodiment, its structure includes a live gear output shaft 100, two shock disks 200, a live gear A disk 300, a live gear B disk 400, and a gear ring 500. Two staggered eccentric wheels 600, each with an eccentricity of e, are machined on the outer side of the live gear output shaft 100. The two shock disks 200 are respectively mounted on the two eccentric wheels 600 via shock bearings. A shoulder is machined between the two eccentric wheels 600 to separate the two shock disks 200. Two intermediate gear disks 700 are mounted on the outer side of the shoulder. The live gear A disk 300 and the live gear B disk 400 are respectively disposed on the sides of the two shock disks 200. The live gear A disk 300 and the live gear B disk 400 are connected to the live gear output shaft 100 via tapered roller bearings 800. The toothed disk A 300 and the movable toothed disk B 400 are machined with movable tooth grooves, and movable teeth 900 are installed in the movable tooth grooves. The toothed ring 500 is sleeved on the outside of the movable teeth 900. The inner ring of the toothed ring 500 is machined with an inner toothed ring that meshes with the movable teeth 900. The movable toothed disk A and the movable toothed disk B are connected by screws to form a movable toothed disk. The movable toothed disk A is machined with several stepped cylinders. The stepped cylinders pass through the shock disk 200 and the intermediate toothed disk 700 and are connected and fixed to the movable toothed disk B 400 by screws. In this embodiment, 16 stepped cylinders are used. The 16 stepped cylinders can be machined individually and then welded to the movable toothed disk A. The radial clearance and lateral clearance between the circular hole on the shock disk 200 and the stepped cylinder in the circular hole are both greater than twice the eccentricity e.

[0028] The gear ring is equipped with a first bearing housing 1000 and a second bearing housing 1100 on both sides. The first bearing housing 1000 and the intermediate gear disk 700 block the live tooth 900 on the live tooth A disk 300. A double-row tapered bearing is provided between the first bearing housing 1000 and the live tooth A disk 300. The second bearing housing 1100 and the intermediate gear disk 700 block the live tooth 900 on the live tooth B disk 400. A roller bearing is provided between the second bearing housing 1100 and the live tooth B disk 400. In order to form a parallel shaft between the high-speed shaft and the input shaft, a single-stage gear transmission is adopted here, which expands the speed ratio and forms a parallel shaft at the same time.

[0029] In the embodiment, the extension 1200 is machined on the movable tooth A disc, the extension serves as an input shaft, the gear box cover 1300 is installed on the second bearing seat 1100, the high speed output shaft 1400 is installed in the gear box cover 1300 through a bearing, the large gear 1500 is installed on the movable tooth output shaft 100, the small gear 1600 is installed on the high speed output shaft 1400, the teeth on the outer ring of the large gear 1500 are engaged with the teeth on the outer ring of the small gear 1600, reverse transmission is utilized, the rotation of the input shaft leads the shock wave device to rotate, the movable tooth is pushed to engage with the gear ring, the movable tooth pushes the shock wave disc to move at an increased speed, finally, the movable tooth output shaft is output, the large gear on the movable tooth output shaft is engaged with the small gear, the high speed output shaft is output through the small gear, of course, the high speed output shaft can also rotate to output the deceleration movement through the output shaft.

[0030] Compared with the existing planetary type wind power speed increasing box, the weight of the utility model is reduced by nearly 30% under the same power and input torque.

[0031] The utility model is not limited to the embodiment, and those skilled in the art can still make some corrections or changes without departing from the spirit of the utility model, i.e. the disclosed range, so the protection scope of the utility model is limited to the range defined in the claims.

Claims

1. A novel wind power generation speed-increasing transmission device, comprising an input shaft, a shock disk, a movable gear disk, and a gear ring, wherein an eccentric wheel is machined on the input shaft, the eccentricity between the eccentric wheel and the input shaft is e, a shock bearing is mounted on the outer side of the eccentric wheel, the shock disk is connected to the outer side of the shock bearing, a plurality of movable gear grooves are machined on the outer ring of the shock disk, movable teeth are installed at the movable gear grooves, the gear ring is sleeved on the outer side of the movable teeth, and an internal gear ring that meshes with the movable teeth is machined on the inner ring of the gear ring, characterized in that: The shock disc is provided with a loose-tooth disc A and a loose-tooth disc B on both sides, the loose-tooth disc A is processed with a plurality of stepped cylinders, the loose-tooth disc B is processed with mounting holes, the stepped cylinders are locked into the mounting holes through screws; the shock disc is processed with circular holes, the stepped cylinders pass through the circular holes, the number of the circular holes is the same as that of the stepped cylinders; the radial clearance and the lateral clearance of the circular holes and the stepped cylinders in the circular holes are both greater than 2 times of the eccentricity e.

2. A new type of speed increasing transmission device for wind power generation according to claim 1, characterized in that: The loose-tooth disc A and the loose-tooth disc B are provided with a bearing one between the bearing one and the input shaft, the bearing one is sleeved on the input shaft, the bearing one is provided with a retainer ring between the bearing one and the eccentric wheel, the retainer ring clamps the shock bearing, the other side of the bearing one is provided with a snap ring and a nut, and the nut locks the bearing one.

3. A new type of speed increasing transmission device for wind power generation according to claim 1, characterized in that: The loose-tooth disc A and the loose-tooth disc B are provided with a bearing two between the bearing two and the gear ring, the bearing two blocks the loose tooth, the loose-tooth disc A is provided with an output disc on the side surface, the output disc is processed with a first protruding part around the periphery, the first protruding part blocks the bearing two on one side of the gear ring, the first protruding part and the gear ring are provided with a sealing ring one, the loose-tooth disc B is provided with a bearing seat on the side surface, the bearing seat is processed with a second protruding part around the periphery, and the second protruding part blocks the bearing two on one side of the gear ring.

4. A new type of speed increasing transmission device for wind power generation according to claim 1, characterized in that: The gear ring is provided with a rear end cover on the side surface, the rear end cover is processed with a through hole in the middle, the input shaft passes through the through hole, and the input shaft is provided with a sealing ring two between the input shaft and the rear end cover.

5. A new type of speed increasing transmission device for wind power generation according to claim 3, characterized in that: The output disc is processed with a connecting hole in the middle, and a front end cover is mounted in the connecting hole.

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