Voltage stabilization type high precision transmission testing system based on two-stage low-pass filtering circuit
A low-pass filter circuit and test system technology, applied in the direction of machine gear/transmission mechanism testing, etc., can solve problems such as the influence of power grid voltage fluctuations, and achieve the effects of improving torque measurement accuracy, smooth operation, and low operating cost.
Inactive Publication Date: 2015-12-02
CHENGDU CHENGBANG POWER TEST INSTR
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the defect that the traditional transmission test system is easily affected by grid voltage fluctuations, and provide a voltage-stabilized high-precision transmission test system based on a two-stage low-pass filter circuit
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[0025] Such as figure 1 As shown, the present invention consists of the isolation transformer 2 connected to the power inlet cabinet 1 and the power inlet cabinet 1, the voltage stabilizing unit 14 connected with the isolation transformer 2, the rectifier unit 3 connected with the voltage stabilizing unit 14, and the rectifier The two-stage low-pass filter unit 15 connected to the unit 3, the driving variable-frequency power supply 4 and the feeding variable-frequency power supply 5 connected to the two-stage low-pass filtering unit 15, and the drive motor 6 connected to the driving variable-frequency power supply 4, through the second A coupling 7 is connected to the transmission motor 6 under test 9, and a loading motor 11 connected to the transmission under test 9 through a second coupling 10 is arranged between the transmission motor 6 and the transmission under test 9 It consists of a torque sensor 8, a torque signal processing unit 12 connected to the torque sensor 8, an...
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The invention discloses a voltage stabilization type high precision transmission testing system based on a two-stage low-pass filtering circuit, comprising a rectification unit (2), a power supply wire inlet cabinet (1), an isolation transformer (2), a driving frequency conversion power supply (4), a feed frequency conversion power supply (5), a driving motor (6), a first coupler (7), a tested transmission (9), a second coupler (10), a loading motor (11), a torque sensor (8), a torque signal processing unit (12), a monitoring platform (13), a voltage stabilization unit (14) and a two-stage low-pass filtering unit (15). The invention can perform regulation on working voltage when the power grid voltage fluctuates to make the working voltage to remain stable, and avoids the affect on the testing result of the detected transmission which is caused by the power grid voltage fluctuation. In the meantime, the invention performs complete filtering processing on the alternating current of the power grid and enables the working current to be smoother, so that the overvoltage protection type high precision transmission testing system can work smoothly.
Description
technical field [0001] The invention relates to a transmission test system, in particular to a voltage-stabilizing high-precision transmission test system based on a two-stage low-pass filter circuit. Background technique [0002] The transmission is a gear transmission device that can change the transmission ratio of the output shaft and the input shaft in fixed or stepwise steps. It can change the operating speed or traction of machines such as machine tools, automobiles and tractors. It is widely used in various fields of industry. There are many gears with different diameters in the composition of the transmission, and as a key transmission device, especially its mechanical properties must pass strict tests before leaving the factory. [0003] The transmission test system is a set of test equipment for testing the mechanical properties of the transmission. The degree of coupling between the gears of the transmission and the degree of deformation under long-term work are ...
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IPC IPC(8): G01M13/02
Inventor 程社林刘陈曹诚军文学
Owner CHENGDU CHENGBANG POWER TEST INSTR