Spring pressurization closed type hydraulic oil tank with volume, pressure and leakage detecting function

Abstract

The invention discloses a spring pressurization closed type hydraulic oil tank with the volume, pressure and leakage detecting function. The spring pressurization closed type hydraulic oil tank comprises a stay wire sensor, a first mini-type pressure sensor, a second mini-type pressure sensor, a first piston seal ring, a second piston seal ring and base plate static seal rings, wherein annular radial radiating fins are arranged on the outer side surface of the oil tank barrel; annular sealing grooves are formed in the end surface of the bottom end of the oil tank barrel; each base plate static seal ring is mounted inside the corresponding annular sealing groove; the stay wire sensor is mounted on the top surface of an upper plate; the first mini-type pressure sensor and the second mini-type pressure sensor both connected with an accommodating chamber are mounted on a piston; two through holes respectively serving as an oil inlet and an oil outlet of the oil tank are machined in a base plate; the oil tank is connected with an external valve block by taking the bottom surface of the base plate as a mounting surface and by adopting a plate-type mounting manner. According to the invention, the hydraulic oil tank is compact in structure, small in occupied space, and isolated from air, can be used for pressurizing accommodated hydraulic media, and can adapt to the volume variation of the accommodated hydraulic media; the sensors of the oil tank can be used for monitoring the volume and pressure of the hydraulic media in the oil tank in a real-time manner, and can be used for monitoring whether the oil tank leaks or not, so that powerful data support can be provided for healthy management of the hydraulic system provided with the oil tank.

Description

technical field [0001] The invention relates to a pressurized hydraulic oil tank, in particular to a spring pressurized closed hydraulic oil tank with volume, pressure and leakage detection functions, which is used to provide hydraulic oil to hydraulic systems in vehicles, robots and other walking mechanical devices supply. Background technique [0002] The hydraulic system has the advantages of high power / mass ratio and large output force, so it is also widely used in mobile and walking mechanical devices, such as robot joint drives, large vehicle turning devices, and construction machinery such as excavators and loaders. These devices generally have higher requirements in terms of light weight, small size, and compact structure compared to bottom-mounted devices. [0003] The conventional hydraulic oil tanks in these devices are all open oil tanks, in which the hydraulic medium is not completely filled with the oil tank, and the air in the oil tank is connected with the o...

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Problems solved by technology

[0005] Therefore, there is a lack of a closed fuel tank that is isolated from the air, has a pressurizing effect, and has a certain function of monitoring the working state of the fuel tank, and is used for the hydraulic system of the traveling device.

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