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Pure manual control hydraulic closed-loop device of speed controller

A technology of manual control and governor, which is applied in the direction of safety devices, machines/engines, engine components, etc., which can solve problems such as complicated construction site implementation, decreased control accuracy, elastic deformation of steel wire ropes, etc., to achieve manual precise control and wide application prospects Effect

Inactive Publication Date: 2012-11-14
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional manual closed-loop control of the governor uses a lever or a wire rope to directly feed back to the governor. The construction site is extremely complicated to realize, and at the same time, the elastic deformation of the wire rope will cause problems such as a decrease in control accuracy.

Method used

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  • Pure manual control hydraulic closed-loop device of speed controller
  • Pure manual control hydraulic closed-loop device of speed controller

Examples

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Embodiment Construction

[0011] Such as figure 1 The present invention shown is a pure manual control hydraulic closed-loop device for a governor. The operating mechanism 4 is fixed on the end of the output shaft of the hydraulic clutch 3. The servomotor position balance valve 5 is located above the operating mechanism 4 and fixed on the hydraulic clutch 3. on the housing bracket. The transmission gear 2 is fixed on the input shaft of the hydraulic clutch 3, the positioning spring 6 is located in the slot at the bottom of the output shaft of the hydraulic clutch 3, the transmission chain 1 is meshed with the transmission gear 2, and the operating mechanism 4 is a cam structure.

[0012] The outer edge of the operating mechanism 4 is in contact with the spool guide rod of the servomotor position balance valve 5 .

[0013] Such as figure 2 As shown, the transmission chain 1 drives the transmission gear 2 to rotate, and the hydraulic clutch 3 rotates together with the transmission gear 2 by meshing wi...

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Abstract

The invention relates to a pure manual control hydraulic closed-loop device of a speed controller. The pure manual control hydraulic closed-loop device is applied to a water-turbine generator set to realize closed-loop control of pure manual control. A realization method is characterized in that displacement output of a guide vane servomotor is converted to hydraulic output by an operation mechanism so as to serve as a feedback signal to control a control head so that the pure manual control of the speed controller can realize the closed-loop control.

Description

technical field [0001] The invention relates to a pure manual control hydraulic closed-loop device for a governor. Background technique [0002] In governor hydraulic control systems, manual control functions are often used. The realization of this function requires closed-loop control to obtain accurate control results, otherwise the servomotor will drift and the manual control will fail. The traditional manual closed-loop control of the governor uses a lever or a wire rope to directly feed back to the governor. The construction site is extremely complicated to realize, and at the same time, the elastic deformation of the wire rope will cause problems such as a decrease in control accuracy. In the world, most of them adopt electrical closed-loop control, canceling the manual control function. When the automatic control fails, the governor will directly shut down the unit. In domestic speed governors, pure manual control is mostly used. Pure manual control can reduce the ...

Claims

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Application Information

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IPC IPC(8): F03B15/00
CPCY02E10/226Y02E10/20
Inventor 杨开黎毛羽波孔令义朴秀日
Owner HARBIN ELECTRIC MASCH CO LTD
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