K-H-V type gap-adjustable small-tooth-difference precise transmission device
A K-H-V, precision transmission technology, applied in the field of reducers, can solve the problems of high assembly accuracy and high cost, and achieve the effect of reducing the difficulty of processing and assembly, eliminating the total backlash, and eliminating gear backlash
Pending Publication Date: 2021-03-26
CHONGQING UNIV
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Problems solved by technology
[0004] In view of this, the object of the present invention is to provide a K-H-V type adjustable backlash and less tooth difference precision transmission device to solve the problems of the existing multi-crank RV reducer parts processing, high assembly accuracy and high cost
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[0028] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.
[0029] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...
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The invention relates to a K-H-V type gap-adjustable small-tooth-difference precise transmission device and belongs to the field of speed reducers. The K-H-V type gap-adjustable small-tooth-differenceprecise transmission device comprises a shell, a first-stage planetary gear train and a second-stage small-tooth-difference gear train. The second-stage small-tooth-difference gear train comprises two inner meshing gear pairs and an anti-backlash mechanism, one inner meshing gear pair is composed of a first outer gear and an anti-backlash inner gear matched with the shell in a sliding mode, and the other inner meshing gear pair is composed of a second outer gear and a fixed inner gear fixedly connected with the shell. The anti-backlash inner gear and the fixed inner gear are installed on a crankshaft in a sleeving mode. The anti-backlash mechanism comprises triangular teeth or trapezoidal teeth arranged at the ends, facing each other, of the anti-backlash inner gear and the fixed inner gear, and an elastic element arranged at the other end of the anti-backlash inner gear, the anti-backlash inner gear axially moves under the axial acting force of the elastic element, and the triangularteeth or the trapezoidal teeth are meshed. The anti-backlash inner gear circumferentially rotates under the acting force of the meshed triangular teeth or trapezoidal teeth, and the phase differencebetween the anti-backlash inner gear and the fixed inner gear is adjusted to achieve backlash elimination. Only the single crankshaft is needed, machining and assembling difficulty is reduced, and transmission precision is improved.
Description
technical field [0001] The invention belongs to the field of reducers, and relates to a K-H-V type precision transmission device with adjustable backlash and less tooth difference. Background technique [0002] At present, the less-tooth-difference reducer widely used in precision gear transmission is mainly the RV reducer, which is composed of a first-stage planetary gear transmission and a first-stage cycloidal pin wheel less-tooth-difference transmission, and has the ability to gradually replace harmonic transmission. the trend of. Since the RV reducer uses multiple cranks for transmission, the crankshaft acts as a differential input component with few teeth and simultaneously drives the output disc to output torque and motion, thus forming a closed transmission structure. This structure has strict requirements on the axial precision and radial precision of the bearing position of the crankshaft, the phase difference between the spline groove at the end of the crankshaft...
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IPC IPC(8): F16H1/32F16H57/12
CPCF16H1/2863F16H1/32F16H57/12F16H2001/323F16H2057/127
Inventor 宋朝省朱飞鸿朱才朝闫国帅杜雪松
Owner CHONGQING UNIV