Hydraulic cooling device

Abstract

The invention relates to a hydraulic cooling device. The hydraulic cooling device comprises a double-head motor; one end of the double-head motor is connected with a hydraulic pump through a first coupler, and the other end of the double-head motor is connected with an air cooling machine through a second coupler; the air cooling machine is connected with one end of an oil conveying pipeline; andthe other end of the oil conveying pipeline is connected with a hydraulic pump. The hydraulic cooling device has the beneficial effects that by using the double-head motor, the air cooling machine isdriven to run while the hydraulic pump is driven, it is not needed to additionally arrange a motor for the air cooling machine, and the hydraulic system cost is reduced; and a new structure is adoptedfor a fan device of the air cooling machine, running is stable, the cooling air volume is sufficient, the structure is compact, and the occupied space is small.

Description

technical field [0001] The invention relates to a device for cooling hydraulic oil, in particular to a hydraulic cooling device. Background technique [0002] During the operation of the hydraulic system, part of the hydraulic energy is converted into heat energy due to the resistance loss along the way of the oil, the local pressure loss and the mechanical friction loss of the components. If this part of energy cannot be released in time, the hydraulic system will generate corresponding Temperature rise, and the rise of system temperature will lead to the decrease of volumetric efficiency of the system, excessive oil oxidation and other unfavorable phenomena. At this time, it is necessary to connect this device to the system to take away excess heat, so as to maintain the system temperature Within a certain range. When the power of the whole machine is small, or the energy loss is small, the usual practice is to connect an air cooler in series on the system oil return or h...

AI Technical Summary

Problems solved by technology

[0002] During the operation of the hydraulic system, part of the hydraulic energy is converted into heat energy due to the resistance loss along the way of the oil, the local pressure loss and the mechanical friction loss of the components. If this part of energy cannot be released in time, the hydraulic system will generate corresponding Temperature rise, and the rise of system temperature will lead to the decrease of volumetric efficiency of the system, excessive oil oxidation and other unfavorable phenomena. At this time, it is necessary to connect this device to the system to take away excess heat, so as to maintain the system temperature Within a certain range

When the power of the whole machine is small, or the energy loss is small, the usual practice is to connect an air cooler in series on the system oil return or hydraulic pump drain pipeline, and the air cooler is driven by an independent motor, so that Not only the cost is high, but also the system is not compact enough and takes up a lot of space

[0003] The existing published unauthorized Chinese patent document CN 104100605 A discloses a hydraulic cooling device, which mainly solves the problem that the heat exchange tube is located inside the hydraulic machine, and the hydraulic oil cooling device must be difficult to assemble and maintain / repair

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