Hydraulic point machine oil tank oil level monitoring alarm device
A technology for monitoring and alarming device and switch machine, which is applied in the direction of liquid level indicator for physical variable measurement, etc., can solve the problems of large volume of measuring device, high environmental temperature requirements, difficult production, etc., and achieves small size, reduced production cost, The effect of improving the service life
Inactive Publication Date: 2013-07-10
JINAN RAILWAY TIANLONG HIGH TECH DEV CO LTD
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Problems solved by technology
[0012] The invention provides a hydraulic point machine oil tank oil level monitoring and alarm device, which can effectively solve the technical problems of the existing measuring device such as large volume, high environmental temperature requirements for use, and difficult production, and greatly improves the service life of the measuring device
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Embodiment Construction
[0020] Such as figure 1 As shown, the oil level monitoring and alarming device of the oil tank 1 of the hydraulic switch machine of the present invention includes a housing 2 and a sensor unit 4. The housing 2 is a hollow cylindrical structure, and the upper end of the housing 2 passes through the fixing seat 3 It is fixed on the tank cover of the fuel tank 1, and the lower end of the housing 2 extends into the interior of the fuel tank 1 through the tank 1 tank cover, and the outer wall of the housing 2 located inside the fuel tank 1 is provided with three through holes from top to bottom in sequence: exhaust hole 31, Oil level upper limit hole 32 , oil level lower limit hole 33 ; the sensor unit 4 is composed of several liquid level sensor units in series, and the sensor unit 4 is arranged in the inner cavity of the housing 2 .
[0021] Such as figure 2 As shown, the liquid level sensor unit includes a voltage divider circuit, a thermistor 7, a heating resistor 9, a heat c...
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The invention discloses a hydraulic point machine oil tank oil level monitoring alarm device, which comprises a shell and a sensor unit, wherein the shell is a hollow cylindrical structure; the upper end of the shell is fixed on an oil tank cover through a fixing seat; the lower end of the shell passes through the oil tank cover to stretch into the oil tank; three through holes, namely, an exhaust hole, an oil level upper limit hole and an oil level lower limit hole are formed in sequence from the top down in the outer wall of the shell in the oil tank; and the sensor unit is composed of a plurality of liquid level sensor units connected in series in sequence, and the sensor unit is arranged in the inner chamber of the shell. The hydraulic point machine oil tank oil level monitoring alarm device is simple in structure and small in size, and is convenient to mount and adjust; and at the same time, liquid level sensor units can be produced through the circuit board printing technology, so that large-scale manufacture of the product is facilitated, manufacturing cost is effectively reduced. Therefore, the hydraulic point machine oil tank oil level monitoring alarm device is very applicable to narrow oil tank detection environment, especially achieves excellent use effect during the monitoring process of the hydraulic point machine oil tank in the railway field.
Description
technical field [0001] The invention relates to a fuel tank oil level monitoring and alarm device, in particular to a hydraulic switch machine fuel tank oil level monitoring and alarm device. Background technique [0002] The bad environment of the railway site (vibration, temperature, humidity and other environmental factors) will affect the moving parts of the hydraulic switch machine, and the hydraulic oil will gradually be lost during the long-term operation; if the maintenance is neglected, it will cause hidden dangers to the safety of the railway operation. The automatic and accurate measurement of the oil level of the oil tank of the hydraulic switch machine is required. [0003] The oil tank of the hydraulic switch machine has a small volume, and the installation space of the measuring device is extremely limited. Therefore, the liquid level measuring devices (such as automobiles, industries, medicines, etc.) that can be seen on the market cannot meet the use require...
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Inventor 顾涤非张效晔
Owner JINAN RAILWAY TIANLONG HIGH TECH DEV CO LTD