Hydraulic oil tank pollution degree detection device

Abstract

The utility model relates to the technical field of pollution degree detection devices, and particularly discloses a hydraulic oil tank pollution degree detection device which comprises an oil tank, an adjusting assembly arranged in the oil tank and matched with different oil level heights, and a sampling assembly arranged outside the adjusting assembly and used for sampling and detecting oil at different depths in the oil tank. When the liquid level in the oil tank changes, the adjusting assembly can drive the sampling assembly to synchronously adjust the sampling position. When in use, the floating ball platform drives the middle-layer sampling port and the upper-layer sampling port on the sliding strip to synchronously move along with the oil level, and is matched with the lower-layer sampling port fixed at the lower part of the connecting rod to adapt to the layering characteristic of hydraulic oil from normal temperature to high temperature, so that the misjudgment of cleanliness and unnecessary oil change cost caused by single sampling are avoided; meanwhile, by means of comparison of sampling data of all layers, impurities can be clearly distinguished from upper-layer-dominant external invasion or lower-layer-dominant internal abrasion, and support is provided for operation of a hydraulic system.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pollution degree detection device, specifically is a hydraulic oil tank pollution degree detection device. BACKGROUND

[0002] The hydraulic oil tank is the core energy storage and guarantee component of the hydraulic system, mainly undertakes the basic functions of storing hydraulic oil and supplying oil for each execution element of the system, and the working state directly affects the operation efficiency and service life of the hydraulic system, the generation of hydraulic oil pollution is caused by internal and external factors, the external factors include the mixing of impurities without filtering during the oiling process, the invasion of dust and pollutants caused by the exposure of equipment opening during maintenance, the internal factors involve the metal particles generated by friction during the operation of hydraulic pump, valve and other elements, the gelatinous precipitate generated by oxidation and metamorphism of oil liquid during long-term high-temperature operation, and the rust and debris generated by the contact between oil liquid and inner wall of the oil tank and pipeline, the existence of these pollutants will gradually damage the working performance of the hydraulic oil.

[0003] The hydraulic oil in the hydraulic oil tank presents stratification phenomenon due to the temperature fluctuation and the difference in oil flow characteristics, the large-particle impurities are easy to deposit in the lower layer close to the bottom of the oil tank in low-temperature environment, part of the impurities will be convected with the oil liquid and suspended in the middle layer during high-temperature operation, and the upper layer of the oil tank often contains light impurities wrapped by tiny air bubbles due to direct contact with air, the single-point fixed sampling mode only collects oil liquid from a single position, and there is a risk of missing detection, which leads to distorted detection data and unnecessary oil change cost. UTILITY MODEL CONTENTS

[0004] The utility model discloses a hydraulic oil tank pollution degree detection device, which solves the problem of stratification phenomenon of impurity distribution in the hydraulic oil tank due to the temperature fluctuation and the difference in oil flow characteristics, and the risk of missing detection of single-point fixed sampling mode.

[0005] To achieve the above object, the utility model provides the following technical scheme: a hydraulic oil tank pollution degree detection device, comprising: an oil tank, an adjusting assembly is arranged in the oil tank, the adjusting assembly is adapted to different oil level heights, a sampling assembly is arranged outside the adjusting assembly, the sampling assembly samples and detects oil liquid at different depths in the oil tank, and when the oil level in the oil tank changes, the adjusting assembly can drive the sampling assembly to adjust the sampling position synchronously.

[0006] The adjusting assembly comprises a sealing seat fixedly connected to the oil tank, a sealing cover threadedly connected to the sealing seat, a connecting rod fixedly connected to the bottom of the sealing cover, a floating ball platform slidably connected to the connecting rod, a movable hole formed in the edge of the floating ball platform, the floating ball platform being slidably connected to the connecting rod through the movable hole, a sliding strip fixedly connected to the lower portion of the floating ball platform, a sliding hole formed in the end of the sliding strip, the sliding strip being slidably connected to the connecting rod through the sliding hole, a lower limiting block fixedly connected to the lower portion of the connecting rod, and an upper limiting block fixedly connected to the upper portion of the connecting rod.

[0007] The sampling assembly comprises a lower layer sampling port fixedly connected to the lower portion of the connecting rod, a lower layer sampling tube fixedly connected to the lower layer sampling port, a middle layer sampling port fixedly connected to the bottom of the sliding strip, a middle layer sampling tube fixedly connected to the middle layer sampling port, an upper layer sampling port fixedly connected to the upper portion of the sliding strip, an upper layer sampling tube fixedly connected to the upper layer sampling port, a sampling pump fixedly connected to the top of the sealing cover, the three sampling tubes being fixedly connected to the sampling pump, and a detector fixedly connected to the sampling pump.

[0008] The sealing cover is externally provided with anti-skid lines.

[0009] The outer surface of the connecting rod is polished to be smooth and free of burrs.

[0010] The length of the connecting rod is greater than the difference between the maximum oil level height and the minimum oil level height of the oil tank.

[0011] The sampling pump is externally provided with a circular arc transition portion.

[0012] The upper layer sampling port, the middle layer sampling port and the lower layer sampling port are each provided with a filter screen at the opening thereof.

[0013] The sliding strip is in the shape of a long strip plate, and the width of the sliding strip is uniform.

[0014] The length of the sliding strip is between 1 / 2 and 2 / 3 of the length of the connecting rod.

[0015] The utility model at least has the following beneficial effects:

[0016] In use, the floating ball platform drives the middle layer and upper layer sampling ports on the sliding strip to move synchronously with the oil level, cooperates with the lower layer sampling port fixedly connected to the lower portion of the connecting rod, adapts to the stratification characteristics of hydraulic oil under normal temperature to high temperature, captures large particle impurities deposited at low temperature, collects suspended impurities at high temperature, captures light impurities wrapped by bubbles at the upper layer sampling port, avoids the misjudgment of cleanliness and unnecessary oil change cost caused by single sampling, clearly distinguishes whether the impurities are mainly from the outside or the inside by comparing the sampling data of each layer, and provides support for the operation of the hydraulic system. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the adjusting assembly schematic view of the utility model;

[0019] Figure 3 It is the sampling assembly schematic view of the utility model;

[0020] Figure 4 It is the utility model Figure 3 The A area amplification schematic view of the utility model.

[0021] In the drawing: 1, oil tank;2, adjusting assembly;21, sealing seat;22, sealing cover;23, connecting rod;24, floating ball platform;25, movable hole;26, sliding bar;27, sliding hole;28, lower limit block;29, upper limit block;3, sampling assembly;31, lower layer sampling port;32, lower layer sampling tube;33, middle layer sampling port;34, middle layer sampling tube;35, upper layer sampling port;36, upper layer sampling tube;37, sampling pump;38, detector;4, anti-skid line;5, circular arc transition part;6, filter screen. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment one

[0024] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a hydraulic oil tank pollution degree detection device, comprising: oil tank 1, oil tank 1 inside is equipped with adjusting assembly 2, adjusting assembly 2 adapts different oil level height, adjusting assembly 2 outside is equipped with sampling assembly 3, sampling assembly 3 carries out sampling detection to different depth oil in oil tank 1, when the liquid level in oil tank 1 changes, adjusting assembly 2 can drive sampling assembly 3 to adjust sampling position synchronously, when hydraulic system starts to run or stop working, the oil level in oil tank 1 will rise or drop along with it, adjusting assembly 2 will produce adaptive displacement based on oil level change at this time, and then drive the sampling assembly 3 cooperated with it to move synchronously, ensure that sampling assembly 3 can always aim at the oil liquid area of different depth in oil tank 1, avoid sampling position deviation due to oil level fluctuation, realize the dynamic continuous monitoring of oil pollution degree.

[0025] The adjusting assembly 2 comprises a sealing seat 21 fixedly connected to the oil tank 1, a sealing cover 22 threadedly connected to the sealing seat 21, a connecting rod 23 fixedly connected to the bottom of the sealing cover 22, a floating ball platform 24 slidably connected to the connecting rod 23, an active hole 25 formed in the edge of the floating ball platform 24, a sliding strip 26 fixedly connected to the bottom of the floating ball platform 24, a sliding hole 27 formed in the end of the sliding strip 26, a lower limit block 28 fixedly connected to the lower part of the connecting rod 23, and an upper limit block 29 fixedly connected to the upper part of the connecting rod 23. When the device is installed, the adjusting assembly 2 is fixed on the top of the oil tank 1 through the threaded cooperation of the sealing seat 21 and the sealing cover 22, so as to ensure the sealing performance of the oil tank 1. When the oil level in the oil tank 1 rises, the floating ball platform 24 slides upward along the connecting rod 23 under the action of buoyancy, synchronously driving the fixedly connected sliding strip 26 to move upward along the connecting rod 23, until the floating ball platform 24 touches the upper limit block 29 to avoid excessive floating. When the oil level drops, the floating ball platform 24 sinks synchronously with the oil surface, and the sliding strip 26 slides downward along the connecting rod 23, until it touches the lower limit block 28 to prevent the floating ball platform 24 from falling off. The double sliding cooperation design of the active hole 25 and the sliding hole 27 ensures that the floating ball platform 24 and the sliding strip 26 always move smoothly along the connecting rod 23 in the axial direction, avoiding jamming or deviation, and ensuring the accurate response of the adjusting assembly 2 to the change of the oil level.

[0026] The sampling assembly 3 comprises a lower layer sampling port 31 fixedly connected to the lower part of the connecting rod 23, a lower layer sampling tube 32 fixedly connected to the lower layer sampling port 31, a middle layer sampling port 33 fixedly connected to the bottom of the sliding strip 26, a middle layer sampling tube 34 fixedly connected to the middle layer sampling port 33, an upper layer sampling port 35 fixedly connected to the upper part of the sliding strip 26, an upper layer sampling tube 36 fixedly connected to the upper layer sampling port 35, a sampling pump 37 fixedly connected to the top of the sealing cover 22, and a detection instrument 38 fixedly connected to the sampling pump 37. The three sampling tubes are fixedly connected to the sampling pump 37. When sampling, the sampling pump 37 is started to draw oil from the corresponding sampling port through the three sampling tubes. The lower layer sampling port 31 is fixed at the lower part of the connecting rod 23, and always collects the oil at the bottom of the oil tank 1, which is not affected by the change of the oil level. The middle layer sampling port 33 and the upper layer sampling port 35 move synchronously with the sliding strip 26, and move upward when the oil level rises and move downward when the oil level drops, always keeping the oil in the middle and upper layers of the oil tank 1. The extracted oil is transported to the detection instrument 38 through the sampling pump 37, and the detection instrument 38 analyzes and detects the pollution index of the oil at different depths, realizing the comprehensive three-dimensional monitoring of the oil in the oil tank 1. The detection data can be fed back in real time, providing a basis for the maintenance of the hydraulic system. After the detection is completed, the sampling pump 37 stops working.

[0027] Example two

[0028] In the second embodiment, other structures are unchanged, and different from the first embodiment is that the sealing cover 22 is externally provided with anti-skid lines 4 to provide sufficient friction for screwing and dismounting, avoid the phenomenon of slipping when the operator's hands are stained with oil, improve the convenience of installation and maintenance, and at the same time ensure that the sealing cover 22 is tightly attached to the sealing seat 21, strengthen the sealing performance of the oil tank 1, the sampling pump 37 is externally provided with a circular arc transition part 5 to eliminate the sharp corners outside the sampling pump 37, reduce the risk of the operator being scratched or the equipment being damaged by knocking against other parts during installation and maintenance, improve the safety of use, the upper sampling port 35, the middle sampling port 33 and the lower sampling port 31 are all externally provided with filter screens 6 to pre-filter large particles in the oil, prevent such impurities from entering the sampling pipe and the sampling pump 37 to cause blockage or wear, at the same time avoid the interference of impurities with the detection process of the detector 38, guarantee the accuracy of the detection data, and prolong the service life of the core components of the entire detection system.

[0029] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic oil tank contamination detection device, comprising: The oil tank is characterized in that: the oil tank is internally provided with an adjusting assembly, the adjusting assembly is adapted to different oil level heights, the adjusting assembly is externally provided with a sampling assembly, the sampling assembly samples and detects oil liquid at different depths in the oil tank, and when the liquid level in the oil tank changes, the adjusting assembly can drive the sampling assembly to synchronously adjust the sampling position.

2. The hydraulic oil tank contamination detection device according to claim 1, characterized by: The adjusting assembly comprises a sealing seat fixedly connected to the oil tank, a sealing cover threadedly connected to the sealing seat, a connecting rod fixedly connected to the bottom of the sealing cover, a floating ball platform slidably connected to the connecting rod, an active hole formed in the edge of the floating ball platform, the floating ball platform slidably connected to the connecting rod through the active hole, a sliding strip fixedly connected to the lower portion of the floating ball platform, a sliding hole formed in the end of the sliding strip, the sliding strip slidably connected to the connecting rod through the sliding hole, a lower limit block fixedly connected to the lower portion of the connecting rod, and an upper limit block fixedly connected to the upper portion of the connecting rod.

3. The hydraulic oil tank contamination detection device according to claim 2, characterized by: The sampling assembly comprises a lower layer sampling port fixedly connected to the lower portion of the connecting rod, a lower layer sampling tube fixedly connected to the lower layer sampling port, a middle layer sampling port fixedly connected to the bottom of the sliding strip, a middle layer sampling tube fixedly connected to the middle layer sampling port, an upper layer sampling port fixedly connected to the upper portion of the sliding strip, and an upper layer sampling tube fixedly connected to the upper layer sampling port.

4. The hydraulic oil tank contamination detection device according to claim 2, characterized by: The sealing cover is externally provided with anti-skid lines.

5. The hydraulic oil tank contamination detection device according to claim 2, characterized by: The outer surface of the connecting rod is subjected to polishing treatment, and is smooth and free of burrs.

6. The hydraulic oil tank contamination detection device according to claim 2, characterized by: The length of the connecting rod is greater than the difference between the maximum oil level height and the minimum oil level height of the oil tank.

7. The hydraulic oil tank contamination detection device according to claim 3, characterized by: The sampling pump is externally provided with a circular arc transition portion.

8. The hydraulic oil tank contamination detection device according to claim 3, characterized by: The upper layer sampling port, the middle layer sampling port and the lower layer sampling port are each provided with a filter screen at the opening thereof.

9. The hydraulic oil tank contamination detection device according to claim 3, characterized by: The sliding strip is in the shape of a long strip, and has a uniform width.

10. The hydraulic oil tank contamination detection device according to claim 3, characterized by: The length of the sliding strip is between 1 / 2 and 2 / 3 of the length of the connecting rod. The sampling pump is externally provided with a circular arc transition portion.

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