CN220622297U - Oil oxidation durability evaluation rack - Google Patents
Oil oxidation durability evaluation rack Download PDFInfo
- Publication number
- CN220622297U CN220622297U CN202320759904.7U CN202320759904U CN220622297U CN 220622297 U CN220622297 U CN 220622297U CN 202320759904 U CN202320759904 U CN 202320759904U CN 220622297 U CN220622297 U CN 220622297U
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- Prior art keywords
- oil
- main body
- pipe
- impeller
- oxidation durability
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- 230000003647 oxidation Effects 0.000 title claims abstract description 25
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 25
- 238000011156 evaluation Methods 0.000 title claims description 10
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 52
- 239000010720 hydraulic oil Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses an oil oxidation durability assessment rack which comprises an oil tank, wherein the lower end of the oil tank is connected with an oil-gas mixing device through a connecting pipeline, the outlet of the oil-gas mixing device is connected with one end of a guide pipe, the other end of the guide pipe is fixedly connected with the upper end of the oil tank, a hydraulic pump is connected to the guide pipe, and a sampling valve is arranged on the side wall of the guide pipe in a penetrating manner.
Description
Technical Field
The utility model relates to the technical field of oil product performance evaluation test devices, in particular to an oil product oxidation durability evaluation rack.
Background
The hydraulic oil is a hydraulic medium used by a hydraulic system utilizing hydraulic pressure energy, and plays roles in energy transmission, wear resistance, system lubrication, corrosion resistance, rust resistance, cooling and the like in the hydraulic system. For hydraulic oil, the requirement of the hydraulic device on the viscosity of the liquid at the working temperature and the starting temperature is met, and the viscosity change of the lubricating oil is directly related to the hydraulic action, the transmission efficiency and the transmission precision, so that the viscosity-temperature performance and the shear stability of the oil are required to meet various requirements of different purposes. Hydraulic oils are various in kinds and classification methods, and for a long time, are frequently classified according to the type of oil, chemical composition, and flammability. These classification methods reflect only struggle with oils, but lack systematicness, and it is difficult to understand the interrelationship and development between oils.
The oxidation resistance of the oil product reflects the decay condition of the oil product and also directly influences the service life of the oil product. In the process of preparing the hydraulic oil formula, in order to solve the trend of the oxidation resistance of the formula, the formula is subjected to continuous simulation tests of the oxidation resistance and the copper corrosion resistance, and if the relevance of experimental equipment is not good, the evaluation result is affected.
At present, few relevant instruments in an oil product laboratory are used, and only a simulation experiment of a rotary oxygen bomb method is carried out. The oxygen bomb test is carried out at room temperature, the temperature of an oil product is 150 ℃, oxygen with the pressure of 620kpa is introduced, the rotating speed of the oxygen bomb is 100r/min, when the pressure drop reaches the preset pressure drop, the test is stopped, and the oxygen bomb test time is taken as the oxidation stability of a sample. The working condition difference between the simulation test method and the oil product in actual application is large, so that the performance of the oil product, in particular the oxidation durability of the oil product under different working conditions such as temperature, pressure and flow rate, cannot be objectively reflected.
Disclosure of Invention
The utility model aims to provide an oil oxidation durability evaluation rack for solving the problems in the background technology.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an oil oxidation durability evaluation rack, includes the oil tank, the lower extreme of oil tank is connected with oil gas mixing device through connecting tube, oil gas mixing device's exit is connected with the one end of pipe, the other end fixed connection of pipe is in the upper end department of oil tank, be connected with the hydraulic pump on the pipe, the lateral wall of pipe runs through and is equipped with the sampling valve.
According to the technical scheme, the oil-gas mixing device comprises a main body, the main body is cylindrical, a cavity is formed in the main body, the connecting pipeline penetrates through the main body, one end of an air inlet pipe penetrates through the side wall of the main body, and a metering pump and an air filter are arranged at the other end of the air inlet pipe.
According to the technical scheme, the air inlet pipe is arranged along the tangential direction of the main body.
According to the technical scheme, the inside of cavity rotates and is equipped with the impeller, the impeller passes through the connecting axle and rotates the setting and be in the upper side wall lower surface of main part, the terminal surface of impeller runs through and is equipped with the puddler.
According to the technical scheme, the stirring rod is rotationally connected with the impeller, the upper end of the stirring rod is fixedly connected with the gear, the inner surface of the upper end of the cavity is fixedly connected with the inner gear, and the gear is meshed with the inner gear.
According to the technical scheme, the inside of the oil tank is provided with the floater alarm and the spiral copper wire.
According to the technical scheme, the cooler and the filter are arranged on the guide pipe.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the oil tank is arranged, the oil tank is connected with the oil-gas mixing device through the connecting pipeline, hydraulic oil and air are fully mixed through the oil-gas mixing device, the oxidation process is simulated, the hydraulic oil is driven to flow in the device through the hydraulic pump by arranging the guide pipe and the hydraulic pump, the test condition of the hydraulic oil is close to the actual working condition, and the evaluation result is accurate.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic view of the stirring mechanism of the present utility model;
FIG. 3 is a schematic top view of the oil-gas mixing device of the present utility model;
in the figure: 1-oil tank, 2-pipe, 3-hydraulic pump, 4-sampling valve, 5-main part, 6-cavity, 7-intake pipe, 8-measuring pump, 9-air filter, 10-impeller, 11-connecting axle, 12-puddler, 13-gear, 14-internal gear, 15-float alarm, 16-spiral copper wire.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides the following technical solutions: the utility model provides an oil oxidation durability evaluation rack, includes oil tank 1, oil tank 1's lower extreme is connected with oil gas mixing device through connecting tube, oil gas mixing device is used for fully mixing hydraulic oil with air, oil gas mixing device's exit is connected with the one end of pipe 2, the other end of pipe 2 is fixedly connected with oil tank 1's upper end department, be connected with hydraulic pump 3 on the pipe 2, after hydraulic pump 3 starts, the inside hydraulic oil of oil tank 1 then gets into oil gas mixing device through connecting tube and mixes with air, then pours into oil tank 1's inside from oil tank 1's upper end through pipe 2 again, the lateral wall of pipe 2 runs through and is equipped with sampling valve 4, the hydraulic oil accessible sampling valve 4 after the device circulates for a period to detect the oxidation condition of hydraulic oil, thereby tests oil durability, wherein, oil tank 1's bottom is the toper, be convenient for lie in the inside of oil tank 1 flow, hydraulic oil is in the equipment inside under aerobic, high temperature, high pressure and the circulation flow condition carries out the oxidation stability test of hydraulic oil, it is more approximate to actual condition;
specifically, the oil-gas mixing device comprises a main body 5, as shown in fig. 1, the main body 5 is cylindrical, a cavity 6 is arranged in the main body 5, the cavity 6 is also cylindrical, the cavity 6 and the main body 5 are coaxially arranged, the connecting pipeline is arranged on the main body 5 in a penetrating manner, the connecting pipeline is arranged on the side wall of the cavity 6 in a penetrating manner, one end of an air inlet pipe 7 is arranged on the side wall of the main body 5 in a penetrating manner, a metering pump 8 and an air filter 9 are arranged at the other end of the air inlet pipe 7, air can be inhaled after the metering pump 8 is started, air enters the cavity 6 after being filtered by the air filter 9 and is mixed with hydraulic oil, and the air inflow is controlled by arranging a control valve on the air inlet pipe 7;
specifically, the air inlet pipe 7 is disposed along a tangential direction of the main body 5, so that the air in the cavity 6 is blown in, the air rotates the hydraulic oil in the cavity 6, and the mixing of the hydraulic oil and the air is accelerated, so that the oxidation of the hydraulic oil is accelerated;
specifically, the impeller 10 is rotatably disposed in the cavity 6, as shown in fig. 2, the impeller 10 includes two circular plates disposed opposite to each other, a plurality of blades are fixedly connected between the two circular plates, the impeller 10 is rotatably disposed on the lower surface of the upper side wall of the main body 5 through a connecting shaft 11, as shown in fig. 1, the impeller 10 is in height coincidence with the air inlet pipe 7, so that after the air blown into the cavity 6 contacts with the impeller 10, the impeller 10 rotates at a high speed in the cavity 6, the end surface of the impeller 10 penetrates through a stirring rod 12, the stirring rod 12 is disposed vertically, the stirring rod 12 is rotatably connected with the impeller 10, the stirring rod 2 is disposed at one side of the impeller 10, a plurality of transverse stirring rods are disposed on the outer wall of the stirring rod 12, a gear 13 is fixedly connected with the upper end of the stirring rod 12, the gear 13 is coaxially disposed with the stirring rod 12, the upper end inner surface of the cavity 6 is fixedly connected with an internal gear 14, the internal gear 14 is coaxially disposed with the cavity 6, the gear 13 is meshed with the internal gear 14, when the impeller 10 rotates, and the stirring rod 12 rotates in a direction opposite to the stirring rod 12, and the stirring rod 12 rotates in the stirring rod 12;
specifically, a float alarm 15 and a spiral copper wire 16 are arranged in the oil tank 1, and the spiral copper wire 16; through setting up copper part as hydraulic oil oxidation catalysis medium, through the content change of copper element in the test hydraulic oil, judge the oxidation corrosion performance of oil to copper, the hydraulic oil that the performance is good corrodes less to copper material. Temperature sensors, pressure sensors and flow sensors connected with a computer information acquisition system are arranged on an inlet channel and an outlet channel of the hydraulic pump 3, and experimental data are collected and analyzed.
Specifically, the conduit 2 is provided with a cooler and a filter (not shown in the figure), wherein the cooler and the filter are respectively arranged on the conduit 2 at positions corresponding to the positions between the sampling valve 4 and the oil tank 1, the cooler is used for cooling oil to ensure that the oil entering the hydraulic pump 3 reaches the test condition, and the filter is used for filtering the oil to ensure the cleanness of the oil.
The hydraulic pump 3 is driven by the driving motor to work, and a torque meter can be arranged between the driving motor and the hydraulic pump 3 and used for detecting the working state of the driving motor.
When the oil tank is used, hydraulic oil in the oil tank 1 enters the oil-gas mixing device through the connecting pipeline to be mixed with air, then gas is injected into the oil tank 1 from the upper end of the oil tank 1 through the guide pipe 2 again, the gas is injected into the cavity 6 through the gas inlet pipe 7 to drive the impeller 10 to rotate, when the impeller 10 rotates, the stirring rod 12 is driven to rotate, the stirring rod 12 stirs oil in the cavity 6 to mix with the gas injected into the cavity 6, and meanwhile, the gear 13 rotates relative to the internal gear 14, so that the stirring rod 12 rotates, the stirring rod 12 drives the transverse stirring rod to rotate, the hydraulic oil is stirred to be fully contacted with the gas, and the actual working condition is simulated.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides an oil oxidation durability evaluation rack, includes oil tank (1), its characterized in that: the lower extreme of oil tank (1) is connected with oil gas mixing device through connecting tube, the exit of oil gas mixing device is connected with the one end of pipe (2), the other end fixed connection of pipe (2) is in the upper end department of oil tank (1), be connected with hydraulic pump (3) on pipe (2), the lateral wall of pipe (2) runs through and is equipped with sampling valve (4).
2. The oil oxidation durability assessment bench according to claim 1, wherein: the oil-gas mixing device comprises a main body (5), the main body (5) is cylindrical, a cavity (6) is formed in the main body (5), the connecting pipeline penetrates through the main body (5), one end of an air inlet pipe (7) is arranged on the side wall of the main body (5) in a penetrating mode, and a metering pump (8) and an air filter (9) are arranged at the other end of the air inlet pipe (7).
3. The oil oxidation durability assessment bench according to claim 2, wherein: the air inlet pipe (7) is arranged along the tangential direction of the main body (5).
4. A stand for evaluating oxidation durability of an oil product according to claim 3, wherein: the inside rotation of cavity (6) is equipped with impeller (10), impeller (10) are in through connecting axle (11) rotation setting upper side wall lower surface of main part (5), the terminal surface of impeller (10) runs through and is equipped with puddler (12).
5. The oil oxidation durability assessment bench according to claim 4, wherein: the stirring rod (12) is rotationally connected with the impeller (10), a gear (13) is fixedly connected to the upper end of the stirring rod (12), an internal gear (14) is fixedly connected to the inner surface of the upper end of the cavity (6), and the gear (13) is meshed with the internal gear (14).
6. The oil oxidation durability assessment bench according to claim 5, wherein: a float alarm (15) and a spiral copper wire (16) are arranged in the oil tank (1).
7. An oil oxidation durability assessment bench according to any of claims 1-6, wherein: the conduit (2) is provided with a cooler and a filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320759904.7U CN220622297U (en) | 2023-04-10 | 2023-04-10 | Oil oxidation durability evaluation rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320759904.7U CN220622297U (en) | 2023-04-10 | 2023-04-10 | Oil oxidation durability evaluation rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622297U true CN220622297U (en) | 2024-03-19 |
Family
ID=90222352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320759904.7U Active CN220622297U (en) | 2023-04-10 | 2023-04-10 | Oil oxidation durability evaluation rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622297U (en) |
-
2023
- 2023-04-10 CN CN202320759904.7U patent/CN220622297U/en active Active
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