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A technology of hydraulic motors and hydraulic pumps, which is applied in the direction of fluid transmission devices, belts/chains/gears, mechanical equipment, etc., can solve the problems of hydraulic pumps and hydraulic motors with complex structures, low power, and low efficiency, and achieve easy maintenance, The effect of high average vehicle speed and simple structure
Pending Publication Date: 2007-08-08
吴志强
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[0002] At present, hydraulic pumps and hydraulic motors are designed according to principles such as hydrostatics, and the power they can transmit is not high, and the efficiency is not high; in addition, these hydraulic pumps and hydraulic motors are complex in structure, so the cost is high
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[0018] As shown in Fig. 1, a kind of hydraulic pump and hydraulic motor, it comprises input shaft 1, coupler 3, hydraulic pump and hydraulic motor 4, output shaft 5, the output end 42 of described hydraulic pump and hydraulic motor 4 and output The shaft 5 is connected, and the input shaft 1 and the output shaft 5 are provided with an input external gear 21, an output external gear 22, a planetary gear 23, a common planet carrier 24, and a coupling internal ring gear 25. The input external gear 21 and the input Shaft 1 is connected, and meshed with the common planetary carrier 24 and the connecting ring gear 25 through the planetary gear 23 on the common planetary carrier 24, and the connecting ring gear 25 passes through another set of planetary gears 23 on the common planetary carrier 24 Engaged with the output external gear 22 and the common planet carrier 24, the output external gear 22 is connected with the input end 31 of the coupler 3, and the output end 32 of the couple...
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Abstract
The invention provides a hydraulic pump and a hydraulic motor, for prolonging the service lives of engine and transmitter, with simple structure and low cost. The invention comprises an input axle, a connector, a hydraulic pump, a hydraulic motor, and an output axle, wherein, the input axle and the output axle are arranged with an input outer mesh gear, an output outer mesh gear, a planet gear, a public planet support, and a connecting inner mesh tooth ring between them. The input outer mesh tooth ring is connected to the input axle, and connected to the connecting inner mesh tooth ring via the planet gear of public planet support. The connecting inner mesh tooth ring via another planet gear of public planet support is connected to the output outer mesh gear connected to the input of the connector. The output of connector is connected to the input inner mesh tooth ring and the inputs of hydraulic motor and hydraulic pump. The outputs of hydraulic motor and hydraulic pump and the public planet support are respectively connected to the output axle.
Description
technical field [0001] The invention belongs to the field of speed change, more specifically, it is a gear for various ground vehicles, ships, railway locomotives, engineering machinery, various aerospace, aircraft, metallurgy, mining, petroleum, chemical industry, light industry, food, textile , Lifting and transporting machinery, machine tools, robots, and military hydraulic pumps and hydraulic motors. Background technique [0002] At present, hydraulic pumps and hydraulic motors are designed according to the principles of hydrostatics, etc., and the power they can transmit is not high, and the efficiency is not high; in addition, these hydraulic pumps and hydraulic motors are complex in structure, so the cost is high. Contents of the invention [0003] The invention overcomes the disadvantages of the prior art, and provides a hydraulic pump and a hydraulic motor with simple structure, low cost, energy saving and high efficiency, which prolong the service life of the eng...
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