Testing rack for oscillating-tooth continuously variable transmission, and starting control method therefor
A continuously variable transmission, test bench technology, applied in electrical program control, machine gear/transmission mechanism testing, program control in sequence/logic controllers, etc. The problem of slippage of the moving wheel and the inability of the device to start can achieve the effect of reducing wear and prolonging the service life
Inactive Publication Date: 2016-01-20
BEIJING UNIV OF TECH
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Problems solved by technology
[0003] However, there is still a big defect in this traditional sliding vane deformation movable tooth CVT, that is, when the centrifugal force is not enough to make the sliding vane of the driven wheel throw out at the starting stage, the slipping phenomenon between the metal toothed chain and the driven wheel will occur
Chain slippage will cause wear between the chain and the driven wheel, reducing the service life of the device, and in severe cases, the device will not start
Method used
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[0019] Examples of the present invention are figure 1 shown.
[0020] The test bench of the movable tooth continuously variable transmission designed by the present invention mainly includes an engine, a rotational speed torque sensor, an electromagnetic clutch, a shaft coupling, a movable tooth continuously variable transmission, a dynamometer, a motor and a controller. The engine is connected to the input shaft of the driving wheel of the movable tooth continuously variable transmission through the first electromagnetic clutch, and a speed torque sensor is arranged between the engine and the first electromagnetic clutch, and the output shaft of the movable tooth continuously variable transmission and the dynamometer The motor is connected with the input shaft of the driven wheel of the movable tooth continuously variable transmission, and the engine and the motor are controlled by the controller.
[0021] On the basis of the test bench, the present invention proposes a star...
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The invention discloses a testing rack for an oscillating-tooth continuously variable transmission, and relates to the technical field of oscillating-tooth continuously variable transmissions. The testing rack comprises an engine, a rotating speed and torque sensor, a first electromagnetic clutch, the oscillating-tooth continuously variable transmission, a second electromagnetic clutch, and a dynamometer, wherein each two of the above parts are connected with each other through a shaft coupling. A motor is connected to one input shaft of the oscillating-tooth continuously variable transmission, and a controller is connected to the engine and the motor. The motor provides a rotating speed matched with a driving wheel for a driven wheel at a starting stage of operation of the oscillating-tooth continuously variable transmission, thereby enabling the driven wheel to have a centrifugal force which can enable a sliding piece to be thrown away at the starting stage, completing the engagement of an oscillating tooth with a metal rack chain, and fundamentally solving a problem that the oscillating-tooth continuously variable transmission slips at the starting stage. Moreover, the motor serves as a power drive device, and forms a hybrid power drive system for the engine and the motor. The whole testing system is complete in function, is compact in arrangement, is simple in testing scheme, and is easy to control and implement.
Description
technical field [0001] The invention relates to a test technology of a movable-tooth continuously variable transmission, in particular to a test bench for system performance research and optimization of a movable-tooth continuously variable transmission. Background technique [0002] Gear transmission is a widely used transmission mechanism in the mechanical field, but this mechanism has high manufacturing precision and installation precision, and its transmission ratio is fixed, so it cannot realize stepless speed change. With the rapid development of science and technology, continuously variable transmission is widely used in the automobile industry as an ideal transmission. Patent 200580039668.6 (slide deformed teeth stepless meshing movable gear, authorized announcement date: June 10, 2009, authorized announcement number: CN100498006C) introduces a sliding sheet deformed movable tooth stepless meshed movable gear device, the movable teeth have no The variable speed devi...
Claims
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IPC IPC(8): G01M13/02G05B19/04
Inventor 冯能莲米磊陈龙科王军张春强
Owner BEIJING UNIV OF TECH