Unlock instant, AI-driven research and patent intelligence for your innovation.

Large-tonnage excavator oil liquid heating system and control method thereof

A technology of large tonnage and oil, which is applied to earth movers/shovels, fluid pressure actuation system components, mechanical equipment, etc. The problem of slow heating rate of hydraulic oil can avoid impact, reduce failure rate and improve work efficiency.

Pending Publication Date: 2018-09-28
XUZHOU XCMG MINING MACHINERY CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the large-tonnage excavators in the alpine region work in open-pit mines. Especially in winter, the temperature is extremely low. After the excavator is started, the hydraulic oil heats up slowly. Radiator damage, so in winter, the radiator failure rate of excavators in alpine regions is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large-tonnage excavator oil liquid heating system and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described through specific embodiments below in conjunction with the accompanying drawings.

[0018] like figure 1 As shown, a large-tonnage excavator oil heating system includes an oil tank 6 and an oil return tank 9; the oil return tank 9 communicates with the oil inlets of the back pressure valve 3 and the bypass valve 8 respectively; The port is connected with the A port of the hydraulic control valve 2, the C port of the hydraulic control valve 2 is connected with the oil inlet of the filter 5, and the B port of the hydraulic control valve 2 is connected with the oil inlet of the filter 5 through the hydraulic oil diffuser 4. Connected to each other, through the reversing of the hydraulic control valve 2 to realize the difference of the oil return circuit; the oil outlet of the bypass valve 8 is connected to the oil inlet of the filter 5; the oil outlet of the filter 5 is connected to the oil tank 6 .

[0019] One port of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a large-tonnage excavator oil liquid heating system. The heating system comprises an oil tank and an oil return tank; the oil return tank communicates with an oil inlet of a back pressure valve and an oil inlet of a bypass valve; an oil outlet of the back pressure valve communicates with a first port of a hydraulic control valve, a second port of the hydraulic control valvecommunicates with an oil inlet of a filter, a third port of the hydraulic control valve communicates with the oil inlet of the filter through a hydraulic oil radiator, and reversing of the oil returnoil path is realized through reversing of the hydraulic control valve; an oil outlet of the bypass valve communicates with the oil inlet of the filter; and an oil outlet of the filter communicates with the oil tank. According to the heating system, only through oil liquid reversing of one hydraulic control valve, the oil temperature of an excavator in the alpine region is rapidly increased, the working efficiency is improved, meanwhile, the oil radiator is also prevented from being impacted by viscous oil liquid, and the failure rate is reduced.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a large-tonnage excavator oil heating system and a control method. Background technique [0002] Most of the large-tonnage excavators in the alpine region work in open-pit mines. Especially in winter, the temperature is extremely low. After the excavator is started, the hydraulic oil heats up slowly. Therefore, in winter, the radiator failure rate of excavators in alpine regions is very high. Contents of the invention [0003] According to the deficiencies of the prior art, the present invention provides a large-tonnage excavator oil heating system and control method, only through the oil reversing of a hydraulic control valve, the oil temperature of the excavator in the alpine region rises rapidly, and the work efficiency is improved. At the same time, it also prevents the oil diffuser from being impacted by viscous oil, reducing the failure rate. [0004] The present in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F15B21/04E02F9/22
CPCF15B21/042E02F9/226F15B2211/62
Inventor 胡义秦家升杨裕丰费树辉史继江石立京吴庆礼吕建森李寿鹏李县军王正华金月峰夏炎尹超张马永简立瑞刘邓张升霞孙忠永崔广伟
Owner XUZHOU XCMG MINING MACHINERY CO LTD