Prime move output torque equalising control device
A technology of balanced control and output torque, applied in the field of fluid transmission, can solve the problems of poor applicability, complex structure, high cost, and achieve the effect of simple structure
Inactive Publication Date: 2008-01-30
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0004] In order to overcome the existing problems of complex structure, poor applicability and high cost of the existing balance control device, the present invention provides a prime mover output torque balance control device with simple structure, good applicability and low cost
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Embodiment Construction
[0027] The present invention will be further described below in conjunction with the accompanying drawings.
[0028]Referring to Figures 1 to 7, a prime mover output torque balance control device includes a hydraulic pump 1, an accumulator 4 and a torque balance controller 14, and the input and output shafts of the hydraulic pump 1 are connected to the output shaft of the prime mover 12 through transmission. , the outlet of the hydraulic pump 1 is connected to the inlet of the accumulator 4, the oil tank 9 is connected to the inlet of the hydraulic pump 1, the accumulator 4 is equipped with an accumulator pressure sensor 7, and the outlet of the hydraulic pump 1 passes through the shut-off valve 10 Connected to the oil tank, the torque balance controller 14 includes an unloading control module for opening the cut-off valve 10 when the pressure value of the accumulator pressure sensor 7 reaches the upper limit, the hydraulic pump 1 is a variable hydraulic pump, and the oil tank ...
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The invention relates to an output torque balance control device of prime mover, comprising a hydraulic pump, an accumulator and a torque balance controller. The input and output shaft of the hydraulic pump is connected with the output shaft of the prime mover in a transmission way; the outlet of the hydraulic pump is connected with the inlet of the accumulator; an oil tank is connected with the inlet of the hydraulic pump; the accumulator is provided with an energy storage pressure sensor; the output of the hydraulic pump is connected with the oil tank through a stop valve; the hydraulic pump is a variable displacement hydraulic pump, which has the functions both of a hydraulic pump and a hydraulic motor; the oil tank is connected with the inlet of the variable displacement hydraulic pump through a first check valve, the outlet of the variable displacement hydraulic pump is connected with the inlet of the accumulator through a second check valve, the inlet of the variable displacement hydraulic pump is connected with the inlet of the accumulator through a first controlled guide valve and the outlet of the variable displacement hydraulic pump is connected with the oil tank through a second controlled guide valve; the torque balance controller consists of an unloading control module and a torque balance module. The output torque balance control device of prime mover provided by the invention has simple structure, good applicability and low cost.
Description
(1) Technical field [0001] The invention belongs to the field of fluid transmission and relates to a prime mover output torque balance control device. (2) Background technology [0002] In many mechanical equipment, the output torque of the prime mover also changes greatly due to the change of the load. For example, in construction machinery such as hydraulic excavators, bulldozers, and loaders, the load changes greatly, resulting in a large change in the output torque of the diesel engine driving these devices. In the usual design in the past, in order to meet the normal work requirements of these equipment, the diesel engine must be selected according to the maximum load that may occur. In the actual working process, the average load power on these devices is not large, far less than the maximum load power. Therefore, the power of the diesel engine selected according to the maximum load power is too large in the most part of the working process, causing the diesel engine...
Claims
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IPC IPC(8): E02F9/20
Inventor 高峰
Owner ZHEJIANG UNIV OF TECH