Servo hydraulic cylinder for free-forging high-speed hydraulic forging press
A hydraulic press and hydraulic cylinder technology, applied in fluid pressure actuation devices, fluid pressure actuation system components, mechanical equipment, etc., can solve the problems of high energy consumption, complex cooling system structure, and high cost, and achieve low energy consumption and structural Simple, low-cost effect
Active Publication Date: 2012-03-28
青岛海德马克智能装备有限公司
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Problems solved by technology
[0003] The present invention aims to solve the technical problems that the existing free forging rapid forging hydraulic press adopts a separate cooling system for the servo hydraulic cylinder, which has complex structure, high cost, and high energy consumption, and the technical problems that the oil cylinder with a piston provided with a flow channel cannot rely on self-cooling to achieve cooling, and provides A follower hydraulic cylinder for free forging rapid forging hydraulic press with simple structure, low cost, low energy consumption and high self-cooling capacity
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[0012] Description with reference to the accompanying drawings.
[0013] In the illustrated embodiment, the stepped piston 2 cooperates with the hydraulic cylinder block 1, the forging hammer head 3 is installed at the front end of the piston, and the oil return cooling pipe 12 is fixed in the inner cavity of the piston center. The stroke limiting ring 6 is fixed on the rear end of the piston cavity, and the rear end surface of the stroke limiting ring 6 is embedded with the valve seat 5 . The valve plunger 9 is installed in the center valve lining 8 of the hydraulic cylinder head 7 , the front end of the valve plunger 9 cooperates with the valve seat 5 , and the valve plunger rod 10 of the valve plunger 9 is connected to the servo control cylinder system 11 . The piston position sensor 16 is parallel to the cylinder axis, penetrates the hydraulic cylinder head 7, and is inserted into the piston 2. The piston position sensor 16 and the servo control cylinder system 11 are con...
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The invention relates to a servo hydraulic cylinder for a free-forging high-speed hydraulic forging press and belongs to a hydraulic cylinder of an executive component of a hydraulic system. The servo hydraulic cylinder comprises a hydraulic cylinder body and a step type piston; a valve plunger is connected to a servo control oil-cylinder system; an oil-return cooling pipe of the inner cavity of the piston is communicated with a piston pushing oil-return port; a valve base at the rear end of the oil-return cooling pipe is matched with the front end of the valve plunger; cooled high-pressure oil is introduced in a rod-less cavity all the time and the rod-less cavity is communicated with a piston pushing oil inlet; and pressure oil is introduced in a rod cavity all the time and the rod cavity is communicated with a piston retracting oil inlet and outlet ports. The invention can solve the technical problems of a traditional servo hydraulic cylinder for the free-forging high-speed hydraulic forging press that the structure is complicated and cost and energy consumption are high because of the adoption of an independent cooling system, and the oil cylinder of which a piston is provided with a runner cannot realize a cooling purpose by self cooling.
Description
technical field [0001] The invention belongs to a hydraulic cylinder of an actuator of a hydraulic system, in particular to a follower hydraulic cylinder of a free forging rapid forging hydraulic press. Background technique [0002] The follow-up hydraulic cylinder of the free forging rapid forging hydraulic press has the advantages of high forging precision and fast frequency, but it also has the disadvantages of high temperature of the cylinder, which causes the cylinder seal to age quickly and fail, and the hydraulic oil is easy to deteriorate. Adopting a separate cooling system to cool down the oil cylinder will make the overall structure of the hydraulic cylinder complex, increase the cost and increase the energy consumption. Chinese invention patent, publication number CN101074691A "follow-up hydraulic servo cylinder", in order to realize the invention purpose of combining the control device and the execution device of the hydraulic servo system, discloses an oil cyli...
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IPC IPC(8): F15B15/14F15B21/04
Inventor 高文强尚永刚公亭刘洪泽张树房
Owner 青岛海德马克智能装备有限公司