Rigid inside and outside tooth-profile-wrapped tooth reducer

A technology of internal and external gears and reducers, which is applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of high cost, high processing accuracy, and difficult eccentric shaft processing accuracy, and achieves simplified processing technology and Manufacturing cost, improving bearing capacity and transmission efficiency, and easy to achieve the effect of industrialization

CN103122973BActive Publication Date: 2015-06-03ZHEJIANG HENGFENGTAI REDUCER MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-06-03

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Abstract

The invention relates to a rigid inside and outside tooth-profile-wrapped tooth reducer which comprises a first level reducing mechanism and a second level reducing mechanism. The first level reducing mechanism comprises an eccentric wheel (101), a first turning arm bearing (5), an outer meshing curve wheel (7) and a gear pin (8), wherein the gear pin (8) is fixed on a first support (9) and is meshed with the outer meshing curve wheel (7) in an external mode. The second level reducing mechanism comprises an eccentric driving wheel (14), a second turning arm bearing (13), an inner meshing curve wheel (11) and an output disc (16), wherein the inner meshing curve wheel (11) is meshed and matched with the gear pin (8) in an internal mode, the output disc (16) is connected with an output shaft (20) of the output disc (16) in a linkage mode, the eccentric driving wheel (14) is connected with the outer meshing curve wheel (7) in a transmission mode through a pin (26), the inner meshing curve wheel (11) is connected with the output disc (16) in a transmission mode through a transmission pin (24), one side of the outer meshing curve wheel (7) is provided with a first reinforcing bracket (6), and one side of the inner meshing curve wheel (11) is further provided with a second reinforcing bracket (23). The rigid inside and outside tooth-profile-wrapped tooth reducer has the advantages of being small in the number of teeth, large in speed ratio, small in size, high in bearing and efficiency, long in service life, high in rigidity, and particularly suitable for a reducer for a heavy-load robot.
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Description

technical field

[0001] The invention relates to an industrial reducer with small tooth difference, belonging to the technical field of reducers. This invention is funded by the "National High Technology Research and Development Program (863 Program)". Background technique

[0002] There are two main types of reducers used in the field of robotics: harmonic reducers and cycloidal reducers. The harmonic reducer, once used as the main device for robot transmission, realizes the deceleration motion through the elastic deformation of the flexspline. Its elastic deformation is large, and the resulting elastic hysteresis is also large, which inevitably affects the accuracy of robot motion. When the load is large, the deformed flexible spline meshes with the rigid spline and the non-conjugate tooth profile meshes, and the accuracy guarantee life is low. It cannot be used on heavy-duty robots, and can only be used on light-load, medium-light-load robots. Compared with th...

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] Such as figure 1 —— Figure 4 As shown, an embodiment of a rigid internal and external tooth profile gear reducer of the present invention includes a first bracket 9 and a second bracket 10, and the first and second brackets 9 and 10 form a cavity; There is an input shaft 1 with an eccentric wheel, the input shaft 1 is installed on the first bracket 9 through the first support bearing 3; an output shaft 20 is arranged on the second bracket 10, and the part located in the cavity on the output shaft 20 is Output disk 16, output shaft 20 are installed on the second support 10 by the 4th support bearing 18, be provided with first stage deceleration mechanism and second stage deceleration mechanism in the cavity, the first stage deceleration mechanism is provided by eccentric wheel 101, The first rotating arm bearing 5 on the eccentric wheel 101, the ext...