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

Adjustable breathing device, hydraulic oil tank and engineering machinery

A technology of breathing device and hydraulic oil tank, which is applied in the field of hydraulic system, and can solve problems such as inability to guarantee the breathing valve, high inclination, and large road gradient

Pending Publication Date: 2020-03-17
SANY HEAVY MACHINERY
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Construction machinery has been used in special environments for a long time, especially in mountain rocks, mining and other environments. The slope of the road where the construction machinery moves is large and the inclination is high. It cannot ensure that the breathing valve is always kept above the liquid level of the hydraulic oil, resulting in The breathing valve of the hydraulic oil tank of construction machinery often leaks hydraulic oil

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
  • Adjustable breathing device, hydraulic oil tank and engineering machinery
  • Adjustable breathing device, hydraulic oil tank and engineering machinery
  • Adjustable breathing device, hydraulic oil tank and engineering machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 A schematic diagram of a partial cross-sectional structure of a hydraulic oil tank provided by an embodiment of the present invention, figure 2 For the partial structural schematic diagram of the hydraulic oil tank provided by the embodiment of the present invention, please refer to figure 1 , figure 2 As shown, this embodiment provides a hydraulic oil tank 1, including an adjustable breathing device 2, and the adjustable breathing device includes a breathing valve 21, a plurality of one-way valves 22 and a one-way valve fixing structure 23, and the one-way valve fixing structure 23 communicates with the breathing valve 21, and a plurality of the one-way valves 22 are arranged in the circumferential direction of the one-way valve fixing structure 23;

[0040] The breathing valve 21 is used to be installed on the hydraulic oil tank 1, and the check valve fixing structure 23 is used to be installed in the hydraulic oil tank 1. When the hydraulic oil tank 1 is...

Embodiment 2

[0050] This embodiment provides a construction machine, including the hydraulic oil tank described in Embodiment 1.

[0051] For example: the hydraulic oil tank includes an adjustable breathing device, and the adjustable breathing device includes a breathing valve, a one-way valve and a one-way valve fixing structure;

[0052] The one-way valve fixing structure is in communication with the breathing valve, the number of the one-way valves is multiple, and the one-way valves are arranged in the circumferential direction of the one-way valve fixing structure;

[0053] The breather valve is used to be installed on the hydraulic oil tank, the one-way valve fixing structure is used to be installed in the hydraulic oil tank, when the hydraulic oil tank is horizontal, the one-way valve is located above the hydraulic oil level, When the hydraulic oil tank is tilted, the one-way valve located above the hydraulic oil level is used to conduct the air path between the hydraulic oil tank a...

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 an adjustable breathing device, a hydraulic oil tank and engineering machinery. The adjustable breathing device comprises a breathing valve, a one-way valve fixing structure and a plurality of one-way valves. The one-way valve fixing structure is connected with the breathing valve. The plurality of one-way valves are arranged in a circumferential direction of the one-way valve fixing structure. The breathing valve is installed on the hydraulic oil tank. The one-way valve fixing structure is used for being installed in the hydraulic oil tank. When the hydraulic oil tankis horizontal, the one-way valve is located above a liquid level of hydraulic oil, and when the hydraulic oil tank inclines, the one-way valve located above the liquid level of the hydraulic oil is used for conducting a gas path between the hydraulic oil tank and the breathing valve, and the one-way valve located below the liquid level of the hydraulic oil is used for closing an oil path between the hydraulic oil tank and the breathing valve. The adjustable breathing device avoids a phenomenon that when the hydraulic oil tank inclines, the hydraulic oil enters into the breathing valve so thatthe hydraulic oil leaks out.

Description

technical field [0001] The invention belongs to the technical field of hydraulic systems, and in particular relates to an adjustable breathing device, a hydraulic oil tank and engineering machinery. Background technique [0002] The breathing valve in the hydraulic system not only ensures that the hydraulic oil stored in the hydraulic oil tank is isolated from the atmosphere within a certain pressure range, but also communicates with the atmosphere when it exceeds or falls below this pressure range. The principle is to use the weight of the positive and negative pressure relief discs To control the exhaust and suction of the hydraulic oil tank, so as to achieve the air pressure balance inside and outside the oil tank, to ensure the safety of the hydraulic oil tank, its function is to prevent the hydraulic oil tank from being damaged due to overpressure or vacuum, and at the same time reduce the evaporation loss of hydraulic oil. [0003] Construction machinery has been used ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F15B1/26F15B21/044F15B21/041F15B19/00
CPCF15B1/26F15B19/00F15B21/041F15B21/044F15B2211/615F15B2211/855
Inventor 薛庆涛陈素梅贡辉军
Owner SANY HEAVY MACHINERY