Multitooth-meshed driving device for transmitting power by eccentric bearing
An eccentric bearing and transmission technology, applied in gear transmission, transmission, belt/chain/gear, etc., can solve the problems affecting the positioning accuracy and dynamic characteristics of the robot end effector, strong impact resistance, and reduced motion accuracy. , to achieve the effect of strong impact resistance, large torsional rigidity and small starting inertia
Inactive Publication Date: 2010-08-18
宏达博能自动化设备(江苏)有限公司
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Problems solved by technology
[0002] The existing transmission device adopts RV transmission, and the RV transmission overcomes the weakness of the harmonic reducer of the robot joint transmission, that is, the motion transmission of the harmonic reducer through the elastic deformation of the flexible spline, resulting in insufficient rigidity, which makes the hysteresis when transmitting the load Larger, which affects the positioning accuracy and dynamic characteristics of the robot end effector; and the motion accuracy also decreases with time, while the RV transmission has a large torsional stiffness, a large transmission ratio, and a high torque density (carrying capacity / volume). High motion precision, small hysteresis, low starting inertia, strong impact resistance and high transmission efficiency
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[0010] Such as figure 1 , figure 2 As shown, the input shaft (15) and the output shaft (6) are on the same axis, and the output shaft flange (17) and the output shaft (6) are positioned by the positioning pin (16), and the socket head cap screw (20) is bolted way connected together. Pintooth pins (18) are evenly distributed in the inner groove of the pin wheel (1), and the inner holes at both ends of the pin wheel (1) are respectively equipped with a deep groove ball bearing (21) and a crossed roller bearing (4). The inner holes of the input end flange (17) and the output shaft (6) are installed respectively.
[0011] The transmission shaft (9) is respectively installed on the output shaft (6) and the input end flange (17) through the tapered roller bearing (10), and the planetary gear (7) installed on the shaft end transmits the power of the input shaft (15) to Installed on the eccentric bearing (14) on the transmission shaft (9), three inner holes evenly distributed on t...
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The invention relates to the technical field of speed reducers, in particular to a multitooth meshed driving device for transmitting power by an eccentric bearing, which mainly comprises a planetary wheel, a driving shaft, a tapered roller bearing, eccentric bearings, a cycloidal gear and an output shaft, wherein two eccentric bearings are simultaneously arranged on the driving shaft and the cycloidal gear; and the cycloidal gear and a pin stock form rolling contact. Under the condition that a pin wheel is fixed, the cycloidal gear does epicyclic motion for transmitting the driving to the output shaft by the eccentric bearings. The multitooth meshed driving device has the advantages of scientific design, reasonable structure, high torsional rigidity, driving ratio and motion precision, small return difference and starting inertia, strong impact resistance, high driving efficiency and the like.
Description
technical field [0001] The invention relates to the technical field of reducers, in particular to a multi-teeth meshing transmission device that transmits power through eccentric bearings. technical background [0002] The existing transmission device adopts RV transmission, and the RV transmission overcomes the weakness of the harmonic reducer of the robot joint transmission, that is, the motion transmission of the harmonic reducer through the elastic deformation of the flexible spline, resulting in insufficient rigidity, which makes the hysteresis when transmitting the load Larger, which affects the positioning accuracy and dynamic characteristics of the robot end effector; and the motion accuracy also decreases with time, while the RV transmission has a large torsional stiffness, a large transmission ratio, and a high torque density (carrying capacity / volume). It has the advantages of high motion precision, small hysteresis, low starting inertia, strong impact resistance ...
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IPC IPC(8): F16H1/28
Inventor 曹洪法朱荣陈伟章
Owner 宏达博能自动化设备(江苏)有限公司