A test bench for a movable tooth continuously variable transmission and its start-up control method
A technology of continuously variable transmission and test bench, which is applied in the direction of electrical program control, machine gear/transmission mechanism test, program control in sequence/logic controller, etc. It can solve the problem of reducing the service life of the device, metal tooth chain and slave The driving wheel slips, the device cannot be started and other problems, so as to prolong the service life and reduce wear and tear
Inactive Publication Date: 2017-09-01
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
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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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A test stand for a movable-tooth continuously variable transmission relates to the technical field of movable-tooth continuously variable transmissions. It includes an engine, a speed torque sensor, a first electromagnetic clutch, a movable tooth continuously variable transmission, a second electromagnetic clutch, and a dynamometer. The above components are connected in pairs through a coupling; the motor is connected to the movable gear through a coupling. An input shaft of the gear CVT, the controller is connected to the engine and the motor respectively. On the one hand, the motor provides the driven wheel with a speed matching that of the driving wheel during the initial stage of the movable tooth CVT, so that the driven wheel has enough centrifugal force to make the sliding plate throw out in the initial stage, and completes the movable tooth and metal tooth shape. The meshing of the chain fundamentally solves the problem of slippage in the initial stage of the movable tooth continuously variable transmission; on the other hand, it is used as a power drive device to form a hybrid drive system of the engine and the motor. The whole test system has complete functions, compact layout, simple test scheme, and is easy to control and realize.
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: CN 100498006C) introduces a sliding plate deformed movable teeth stepless meshed movable gear device, movable teeth The continuously variable transmis...
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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