A hydraulic combined support system for machining of marine propeller blades
A marine propeller and support system technology, applied in the direction of servo motor components, fluid pressure actuators, servo motors, etc., can solve problems such as the interconnection and function of support devices that have not been mentioned, and achieve flexible usability and simple operation , the effect of high control precision
Active Publication Date: 2020-06-16
BEIJING UNIV OF TECH
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Problems solved by technology
[0004] Patent CN102886699A discloses a support device and support method for processing propeller blades. The actual support method of this patent is to divide the blade area and the number of support points according to the size of the propeller blade, and then place the support device to achieve support. However, the device There is no mention of the interrelationships and effects of supporting devices
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[0020] The present invention provides a hydraulic combined support system and device for a marine propeller, including a support loading mode and a support unloading mode. The specific implementation will be further described below in conjunction with the accompanying drawings.
[0021] According to the size of the propeller blade and processing requirements, select the correct number and position of support points.
[0022] Support loading mode. by figure 1The four-bar hydraulic combination support system and support device shown are taken as an example. First, the positions of the four support points of the propeller blade are determined, and the first support device (B1), the second support device (B2), and the third support device ( B3), the fourth support device (B4) is fixed to ensure that when the piston rod is accurately positioned, the hydraulic pump (2) is turned on, the three-position four-way electromagnetic reversing valve (3) is connected to the left, and the o...
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The invention discloses a hydraulic combined supporting system for marine propeller blade processing. The hydraulic combined supporting system comprises a hydraulic power element, a hydraulic controlloop, hydraulic control elements and hydraulic actuating elements. According to the hydraulic combined supporting system disclosed by the invention, a hydraulic combined control system is adopted; inorder to solve the propeller blade supporting problem, a supporting scheme which is relatively low in cost, relatively simple in supporting form and high in control precision is provided; when the size of a propeller is bigger, the quantity of supporting devices can be increased by adding a similar power actuating mechanism d, one-way valves d, stroke switch d, two-position two-way electromagneticreversing valve d and back pressure valve d in a hydraulic system; when the size of the propeller is relatively small, the quantity of supporting systems can be reduced as long as the two-position two-way electromagnetic reversing valve d is prevented from being externally connected with a power source; the operation is simple; and the hydraulic combined supporting system for marine propeller blade processing and the supporting devices are flexible to use.
Description
technical field [0001] The invention relates to the field of marine propeller manufacturing and the field of propeller processing supported by a hydraulic control system, in particular to a combined support system and device for processing large-scale marine propeller blades used on heavy machine tools. Background technique [0002] The marine propeller is the core component of the ship's power system, and its processing quality directly affects the performance of the ship's propulsion system. During the machining process, the propeller blades will be greatly deformed under the action of cutting force, resulting in insufficient cutting depth, resulting in large errors in the shape, size and position of the processed parts. Therefore, proper support must be taken for the blades System, to enhance the stiffness of the propeller blades, to reduce the errors in the shape, size and position of the parts caused by insufficient support, and improve the machining accuracy of the mar...
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IPC IPC(8): F15B11/16F15B13/06
CPCF15B11/16F15B13/06F15B2211/20538
Inventor 蔡力钢沈华英赵永胜刘志峰李海波
Owner BEIJING UNIV OF TECH