Center rotary cylinder device of full hydraulic hybrid power crane

Abstract

The invention relates to a full hydraulic hybrid power crane, in particular to a full hydraulic hybrid power crane which is characterized by comprising a fixing body part and a rotating body part, wherein the fixing body part and the rotating body part form an upper layer power transmission part, a middle layer compressed air part and a lower layer hydraulic oil part based on the difference of transmission media; and an air pipe center cylinder rotary body and a slip-ring rotating body are connected through a connecting bolt so as to realize the connection of the rotating parts of the upper layer power transmission part and the middle layer compressed air part. The invention has the following beneficial effects: 1. three types of power comprising power supply, hydraulic oil and compressed air as well as the control power of the three types of power, which are high-power, can be simultaneously transmitted; 2. multiple channels are arranged, besides the channels for transmitting the main powers of power supply, hydraulic oil and compressed air, the other channels are control channels, wherein 7 channels utilized are hydraulic oil channels, 5 channels are utilized as compressed air channels, 5 channels are utilized as power supply channels, and the total number of the channel is 17; and 3. the structure size is smallll, the arrangement in smaller space realized, the power transmission with high power is achieved. By utilizing the device provided by the invention, the space is effectively utilized, and the arrangement of the channels are irregular in radial, thus the minimization of the diameter size is realized.

Description

technical field [0001] The invention relates to a full-hydraulic hybrid crane, in particular to a full-hydraulic hybrid crane. Background technique [0002] When the crane is performing lifting operations, it needs to make a 360° full rotation, and it must work normally at any rotation angle. An element capable of transmitting power is required between the two parts that rotate relatively, and this element is the central rotating cylinder. The one that transmits electric energy is called a slip ring, and the one that transmits hydraulic oil is called a central rotary cylinder. Most of these power transmission components transmit a single type of power. When mixed, only one is the active power, and the others are auxiliary power, which are only used for control and have low power. The hybrid crane uses two kinds of energy, electricity and diesel. The electricity is supplied by the ground power supply. The central slewing cylinder transmits the ground power supply to the boa...

AI Technical Summary

Problems solved by technology

Most of these power transmission components transmit a single type of power. When mixed, only one is the active power, and the others are auxiliary power, which are only used for control and have low power.

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