Hydraulic follow-up rotating device

Abstract

The invention discloses a hydraulic follow-up rotating device, which comprises a rotating valve, a rotating shaft and a bracket, wherein one end of the rotating shaft is connected with the outer end part of a valve core, and the other end of the rotating shaft is connected with a connecting rod; the connecting rod is provided with a central shaft; the bottoms of two double-acting oil cylinders are hinged with the bracket; piston rods of the two double-acting oil cylinders are hinged with the central shaft; axial lines of the two piston rods are intersected; the rotating valve comprises a valve body, a valve cover, the valve core and a sealing ring which is arranged on the valve core; an oil inlet, an oil outlet and four working oil ports are formed in the valve body; two working oil ports which are formed at the periphery of the valve body at intervals are connected with a rod-containing cavity oil port or a rod-free cavity oil port of a respective double-acting oil cylinder through pipelines respectively; and the travel of the two piston rods is greater than two times of the distance between the center of the central shaft and the center of the rotating shaft. The sequences of oil supply or oil discharge of the rod-containing cavity oil ports or the rod-free cavity oil ports of the two double-acting oil cylinders are adjusted through the rotating shaft, so that the rotating shaft can be continuously rotated in the positive and reverse directions at the angle of 360 DEG, and the rotating device has the advantages of simple structure and low energy loss, can output ultra-high power and torque and has a wider using range.

Description

technical field [0001] The invention relates to a hydraulic follow-up rotation device. Background technique [0002] Rotating devices are widely used in various mechanical equipment, such as winches, mixers, etc. Most of the rotating devices currently used are mechanical transmission structures or hydraulic motor transmission structures. Mechanical transmission generally uses motors and multi-stage transmission gears to drive rotating devices. Not only structure It is more complicated, has a large energy loss, and is difficult to meet the working conditions of outputting super-high power and super-torque, because after reaching a certain order of magnitude, it will be very difficult and costly to increase the power of the motor, which makes the mechanical transmission The scope of use of the rotating device is limited; the transmission form of the hydraulic motor is limited by the power of the motor, and there is no advantage in outputting large torque or super torque. Con...

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Problems solved by technology

[0002] Rotating devices are widely used in various mechanical equipment, such as winches, mixers, etc. Most of the rotating devices currently used are mechanical transmission structures or hydraulic motor transmission structures. Mechanical transmission generally uses motors and multi-stage transmission gears to drive rotating devices. Not only structure It is more complicated, has a large energy loss, and is difficult to meet the working conditions of outputting super-high power and super-torque, because after reaching a certain order of magnitude, it will be very difficult and costly to increase the power of the motor, which makes the mechanical transmission The scope of use of the rotating device is limited; the transmission form of the hydraulic motor is limited by the power of the motor, and there is no advantage in outputting large torque or super torque

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