A separation device for lubricating oil and a detection pretreatment method

Abstract

The invention discloses a separation device for lubricating oil and a detection pretreatment method, which relates to the technical field of solid-liquid separation. The separation device for lubricating oil comprises a base, a clamping mechanism and a plurality of electromagnets, wherein the clamping mechanism comprises a plurality of fastening components, and the plurality of fastening components can move toward or away from the central axis of the base to clamp or loosen the oil sample bottle; and a plurality of electromagnets are respectively arranged in the base and at least one fastening component, and the plurality of electromagnets are electrically connected to a power supply device. The separation device for lubricating oil can quickly separate abrasive particles and lubricating oil, and the separated lubricating oil has good representativeness, which is beneficial to the accuracy of subsequent physical and chemical property detection of the lubricating oil.

Description

Technical Field

[0001] The invention relates to the technical field of solid-liquid separation, and in particular to a separation device for lubricating oil and a detection pretreatment method. Background Art

[0002] Lubricating oil testing is an important basic work for equipment lubrication management and equipment maintenance. Lubricating oil testing is to prevent major accidents of equipment by regularly tracking and monitoring the physical and chemical performance indicators, wear metals and contamination impurity particles of the lubricating oil used in the equipment. Before conducting physical and chemical performance tests on used lubricating oil, inspectors are accustomed to taking the used lubricating oil out of the equipment and putting it into the oil sample bottle, and finally sending it to the laboratory for testing. Since the lubricating oil has a certain viscosity and the operating conditions of the equipment are different, the lubricating oil will contain insoluble abrasive particles, making the texture of the lubricating oil not uniform. In order to ensure the representativeness and accuracy of the oil sample, the inspectors need to pre-treat the oil sample, but there are still several technical problems. First, after the homogenization treatment, the abrasive particles in the oil sample are scattered in the oil. When sampling, the abrasive particles will inevitably be included, making the mass of the oil sample larger, resulting in smaller physical and chemical test results. Second, due to the high viscosity of the lubricating oil, the abrasive particles are precipitated by homogenization and standing, which takes a long time to settle. Long-term standing will destroy the uniformity of the liquid phase, thus affecting the test results. Therefore, people urgently need a device that can quickly separate the used lubricating oil and abrasive particles into solid and liquid to fill the gap in the current market. Summary of the invention

[0003] The purpose of the present invention is to provide a separation device for lubricating oil, which solves the technical problems that the physical and chemical property test results of the lubricating oil are inaccurate and the separation time is too long due to the presence of abrasive particles in the lubricating oil.

[0004] Another object of the present invention is to propose a detection pretreatment method for lubricating oil separation, which solves the technical problems of inaccurate physical and chemical property test results of lubricating oil and too long separation time due to the presence of abrasive particles in the lubricating oil, and provides a more standardized and accurate detection pretreatment method.

[0005] To achieve these two purposes, the present invention adopts the following technical solutions:

[0006] A separation device for lubricating oil comprises a base, a clamping mechanism and a plurality of electromagnets, wherein the clamping mechanism comprises a plurality of fastening assemblies, and the plurality of fastening assemblies can move toward or away from the central axis of the base to clamp or loosen an oil sample bottle; and the plurality of electromagnets are respectively arranged in the base and at least one of the fastening assemblies, and the plurality of electromagnets are electrically connected to a power supply device to absorb abrasive particles.

[0007] Optionally, the clamping mechanism further comprises a rocker member, the rocker member is provided with two sections of external threads in opposite directions, the two sections of external threads respectively cooperate with the internal threads of the two fastening components, wherein when the rocker member is driven to rotate, the two fastening components can move relative to or oppositely.

[0008] Optionally, the fastening assembly includes a fastener and a sliding block, the inner wall of the fastener being able to contact the outer wall of the oil sample bottle; and the sliding block being connected to the outer wall of the fastener, the sliding block being provided with a latching protrusion that cooperates with a latching slot of the base, and the rocker member being rotatably passed through the latching protrusion to drive the sliding block to slide along the length direction of the latching slot.

[0009] Optionally, the clamping mechanism further includes a pressing plate, which is a Z-shaped structure, connected to the base, and protrusions are respectively provided at both ends of the sliding block, and one end of each pressing plate is arranged above one of the protrusions.

[0010] Optionally, the electromagnet is disposed on the base and located between the two fastening components.

[0011] Optionally, the plurality of electromagnets are arranged in two rows, and the two rows of electromagnets are arranged on one of the fasteners.

[0012] Optionally, the separation device for lubricating oil further comprises a switch button, and the switch button is respectively connected to the electromagnet and the power supply device.

[0013] The separation device of the present invention has the following beneficial effects compared with the prior art: the oil sample bottle is placed on the base, and the two fastening components clamp the oil sample bottle. Since the main component of the abrasive particles is iron filings, when the power supply device is connected to the electromagnet on the fastening component or the electromagnet on the base, the abrasive particles will move toward the fastening component or the base until they are adsorbed on the bottle wall of the oil sample bottle and settle to the bottom of the oil sample bottle. The separation device can quickly separate the abrasive particles and the lubricating oil, and the separated lubricating oil has good representativeness, which is conducive to the accuracy of the subsequent physical and chemical property detection of the lubricating oil.

[0014] A detection pretreatment method for lubricating oil separation comprises the following steps:

[0015] S1, take out the used lubricating oil from the equipment and put it into the oil sample bottle;

[0016] S2, placing the oil sample bottle on a shaking table, shaking the lubricating oil until the lubricating oil is in a uniform state;

[0017] S3, placing the shaken oil sample bottle on the separation device for lubricating oil for solid-liquid separation until the abrasive particles settle to the bottom of the oil sample bottle;

[0018] S4, taking out the lubricating oil from the middle of the oil sample bottle after solid-liquid separation, and completing the pretreatment of the lubricating oil before the physical and chemical property testing.

[0019] Optionally, in the detection pretreatment method for lubricating oil separation, the step S3 specifically includes the following steps:

[0020] S31, placing the shaken oil sample bottle on the base, driving the rocker of the clamping mechanism to rotate so that the fastening assembly of the clamping mechanism moves toward the central axis of the base to clamp the oil sample bottle;

[0021] S32, pressing the switch button of the separation device for lubricating oil so that the power supply device is connected to the two rows of electromagnets on the fastener of one of the fastening assemblies, and the two rows of electromagnets are energized for a first preset time;

[0022] S33, stopping the power supply to the electromagnets in the upper row and continuing to power the electromagnets in the lower row for a second preset time;

[0023] S34, stopping the power supply to the electromagnets in the lower row, connecting the power supply device to the electromagnets on the base, and powering the electromagnets on the base for a third preset time until all the abrasive particles settle to the bottom of the oil sample bottle.

[0024] Optionally, in the step S2, the oscillation frequency is 0-500 rpm, and the oscillation time is 0-120 min; and / or in the step S3, the solid-liquid separation time is 0-30 min.

[0025] The beneficial effects of the detection pretreatment method for lubricating oil separation of the present invention are as follows: the method can obtain a lubricating oil sample with uniform composition and free of abrasive particles, and the lubricating oil sample has good representativeness, thus filling the gap in the lubricating oil detection pretreatment method on the current market. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a separation device for lubricating oil provided in a specific embodiment of the present invention;

[0027] Figure 2 is a structural exploded view of a separation device for lubricating oil provided in a specific embodiment of the present invention;

[0028] Figure 3 is a flowchart of the steps of a detection pretreatment method for lubricating oil separation provided by a specific embodiment of the present invention;

[0029] Figure 4 It is a flow chart of the specific steps in step S3 of the detection pretreatment method for lubricating oil separation provided by the specific test method of the present invention.

[0030] Reference numerals:

[0031] Base-1, slot-11, fastening assembly-21, fastener-211, sliding block-212, cam-2121, protrusion-2122, rocker component-22, external thread-221, pressure plate-23, switch button-3, power supply device-4. DETAILED DESCRIPTION

[0032] In order to make the technical problem solved by the present invention, the technical solution adopted and the technical effect achieved more clearly, the technical solution of the present invention is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] like Figure 1 and Figure 2 As shown, a separation device for lubricating oil includes a base 1, a clamping mechanism and a plurality of electromagnets, the clamping mechanism includes a plurality of fastening components 21, the plurality of fastening components 21 can move toward or away from the central axis of the base 1 to clamp or loosen the oil sample bottle; and a plurality of electromagnets are respectively arranged in the base 1 and at least one fastening component 21, and the plurality of electromagnets are electrically connected to a power supply device 4 to absorb abrasive particles.

[0034] It is understandable that the oil sample bottle is placed on the base 1, and the two fastening components 21 are relatively moved until the oil sample bottle is clamped, so that the oil sample bottle is fixed between the two fastening components 21. Since the main component of the abrasive particles is ferromagnetic iron filings, when the power supply device 4 is connected to the electromagnet on the fastening component 21 or the electromagnet on the base 1, the ferromagnetic abrasive particles will move toward the fastening component 21 or the base 1 until they are adsorbed on the bottle wall of the oil sample bottle, and finally settle to the bottom of the oil sample bottle. For the specific sedimentation process, please refer to the specific steps in the S3 step of the detection pretreatment method for lubricating oil separation below. The sedimentation process utilizes the characteristics of the electromagnet generating magnetism when it is powered on and demagnetizing when it is powered off. The separation device for lubricating oil of the present invention can quickly separate abrasive particles and lubricating oil, and the separated lubricating oil has good representativeness, which is conducive to the accuracy of subsequent physical and chemical property detection of the lubricating oil.

[0035] In addition, in other embodiments of the present invention, some of the multiple fastening components 21 can be selected as fixed parts, and other fastening components 21 can be selected as movable parts, which move toward or away from the central axis of the base 1 to clamp or loosen the oil sample bottle.

[0036] Alternatively, if Figure 1 and Figure 2 As shown, the clamping mechanism also includes a rocker member 22, which is provided with two sections of external threads 221 in opposite directions. The two sections of external threads 221 respectively cooperate with the internal threads of the two fastening components 21, wherein when the rocker member 22 is driven to rotate, the two fastening components 21 can move relative to or oppositely.

[0037] It should be noted that, since the two sections of external threads 221 on the rocker 22 in opposite directions are respectively matched with the internal threads of the two fastening components 21, when the rocker 22 is driven to rotate in the clockwise direction, the two fastening components 21 can move relative to each other until the oil sample bottle is clamped, so that the oil sample bottle is fixed on the base 1, which is convenient for the subsequent separation of abrasive particles and lubricating oil. When the rocker 22 is driven to rotate in the counterclockwise direction, the two fastening components 21 can move oppositely to loosen the oil sample bottle, which is convenient for taking the oil sample bottle out of the base 1. It should be noted that the rocker 22 is not limited to rotate in the clockwise or counterclockwise direction. In other embodiments of the present invention, when the rocker 22 rotates in the clockwise direction, the two fastening components 21 can move oppositely to loosen the oil sample bottle; when the rocker 22 rotates in the counterclockwise direction, the two fastening components 21 can move relative to each other until the oil sample bottle is clamped.

[0038] Alternatively, if Figure 2 As shown, the fastening assembly 21 includes a fastener 211 and a sliding block 212, the inner wall of the fastener 211 can contact the outer wall of the oil sample bottle; and the sliding block 212 is connected to the outer wall of the fastener 211, and the sliding block 212 is provided with a protrusion 2121 that cooperates with the slot 11 of the base 1, and the rocker member 22 can be rotatably passed through the protrusion 2121 to drive the sliding block 212 to slide along the length direction of the slot 11.

[0039] It is understandable that, since the sliding block 212 is provided with a protrusion 2121 that cooperates with the slot 11 of the base 1, when the rocker 22 is driven to rotate, the two sliding blocks 212 can slide relative to each other along the length direction of the slot 11, that is, the protrusion 2121 can slide in the slot 11, so that the two fasteners 211 can stop the oil sample bottle to fix it. In addition, the slot 11 has a limiting function, which ensures that the sliding block 212 slides along the length direction of the slot 11 without deviating from the direction. In addition, the connection between the sliding block 212 and the base 1 is not limited to the matching mode of the slot 11 and the protrusion 2121. In other embodiments of the present invention, other movable connection modes can be selected according to actual needs.

[0040] Alternatively, if Figure 2 As shown, the clamping mechanism also includes a pressing plate 23, which is a Z-shaped structure. The pressing plate 23 is connected to the base 1, and protrusions 2122 are respectively provided at both ends of the sliding block 212, and one end of each pressing plate 23 is arranged above a protrusion 2122.

[0041] It can be understood that when the rocker member 22 rotates to drive the sliding block 212 to slide along the length direction of the slot 11, since one end of each pressure plate 23 is arranged above the protrusion 2122 of the sliding block 212, the sliding block 212 can be prevented from falling out from the top of the base 1, thereby ensuring the stability of the sliding block 212 during the sliding process to a certain extent.

[0042] Optionally, a plurality of electromagnets are arranged in two rows, and the two rows of electromagnets are arranged on one of the fasteners 211. It should be noted that when the electromagnet arranged on one of the fasteners 211 is connected to the power supply device 4, it will generate magnetism. At this time, the abrasive particles in the oil sample bottle move toward the direction of the fastener 211 until they are adsorbed on the side wall of the oil sample bottle, so as to facilitate the subsequent sedimentation of the abrasive particles to the bottom of the oil sample bottle. Of course, in other embodiments of the present invention, two rows of electromagnets can be arranged on both fasteners 211, and the working principle is consistent with the above. In addition, since two rows of electromagnets are arranged on the fasteners 211, the adsorption effect will be better. Of course, in other embodiments of the present invention, it is not limited to setting two rows, and the number of rows of electromagnets can be selected according to actual needs.

[0043] Optionally, the electromagnet is disposed on the base 1 and located between the two fastening components 21 .

[0044] It should be noted that when the electromagnet provided on the base 1 is connected to the power supply device 4, it will generate magnetism, and at this time, the abrasive particles of the oil sample bottle can move toward the base 1 until they are adsorbed on the bottom wall of the oil sample bottle, which is convenient for the solid-liquid separation of the lubricating oil and the abrasive particles. Usually, the number of electromagnets provided on the base 1 is one, and of course, in some embodiments of the present invention, the number of electromagnets provided on the base 1 can be selected to be other.

[0045] Alternatively, if Figure 2 As shown, the separation device for lubricating oil further comprises a switch button 3, which is respectively connected to the electromagnet and the power supply device 4. The switch button 3 can control whether the electromagnet is connected to the power supply device 4, thereby controlling the magnetization or demagnetization of the electromagnet.

[0046] A detection pretreatment method for lubricating oil separation, such as Figure 3 As shown, the following steps are included:

[0047] S1, take out the used lubricating oil from the equipment and put it into the oil sample bottle;

[0048] S2, placing the oil sample bottle on a shaking table, shaking the lubricating oil until the lubricating oil is in a uniform state;

[0049] S3, placing the shaken oil sample bottle on a separation device for lubricating oil to perform solid-liquid separation until the abrasive particles settle to the bottom of the oil sample bottle;

[0050] S4, taking out the lubricating oil from the middle of the oil sample bottle after solid-liquid separation, and completing the pretreatment of the lubricating oil before the physical and chemical property testing.

[0051] The detection pretreatment method for lubricating oil separation of the present invention can obtain a lubricating oil sample with uniform composition and free of abrasive particles. The lubricating oil sample has good representativeness and is convenient for subsequent detection of the physical and chemical properties of the lubricating oil, thus filling the gap in the lubricating oil detection pretreatment method on the current market.

[0052] In step S4, the lubricating oil is taken out from the middle of the oil sample bottle after solid-liquid separation. It should be noted that the lubricating oil in the middle has a uniform texture and is more representative. The lubricating oil in the upper part is in direct contact with the air, and the moisture or impurities in the air will affect the sampling of the lubricating oil, while the lubricating oil in the lower part contains abrasive particles, which is not conducive to sampling. The physical and chemical properties of the lubricating oil after step S4 include the water content of the lubricating oil, the total acid value, the oxidation degree, etc.

[0053] Optionally, a detection pretreatment method for lubricating oil separation, such as Figure 4 As shown, step S3 specifically includes the following steps:

[0054] S31, placing the shaken oil sample bottle on the base 1, driving the rocker 22 to rotate so that the two fastening components 21 move relative to each other to clamp the oil sample bottle;

[0055] S32, pressing the switch button 3 makes the power supply device 4 connected to the two rows of electromagnets on one of the fasteners 211, and the two rows of electromagnets are energized for a first preset time;

[0056] S33, stopping the power supply to the electromagnets in the upper row and continuing to power the electromagnets in the lower row for a second preset time;

[0057] S34, the electromagnets in the lower row are de-energized, the power supply device 4 is connected to the electromagnets on the base 1, and the electromagnets on the base 1 are energized for a third preset time until all the abrasive particles are settled at the bottom of the oil sample bottle.

[0058] It should be noted that the two rows of electromagnets on the fastener 211 are energized first. Since the main component of the abrasive particles is ferromagnetic iron filings, the abrasive particles will move toward the fastener 211 until they are adsorbed on the side wall of the oil sample bottle. Then the upper row of electromagnets are stopped from being energized, and the lower row of electromagnets are continuously energized so that the abrasive particles move from top to bottom along the side wall of the oil sample bottle to the lower part of the side wall. At this time, the lower row of electromagnets are stopped from being energized, and the electromagnets on the base 1 are energized, and the abrasive particles at the lower part of the side wall move toward the base 1 until they settle to the bottom of the base 1. This method makes full use of the characteristics of electromagnets generating magnetism when energized and demagnetizing when powered off, and can quickly and effectively separate lubricating oil and abrasive particles.

[0059] In addition, the first preset time, the second preset time, and the third preset time are all 0-10 minutes. Of course, in other embodiments of the present invention, the power-on time can be selected according to actual conditions.

[0060] Optionally, in step S2, the oscillation frequency is 0-500 rpm, the oscillation time is 0-120 min, and the oscillation effect is good. In step S3, the solid-liquid separation time is 0-30 min, and the solid-liquid separation effect is good.

[0061] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] In addition, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "inside", "outside", "vertical", and "horizontal" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "installed", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific circumstances.

[0064] In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0065] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A separation device for lubricating oil, comprising: Base (1); A clamping mechanism, the clamping mechanism comprising a plurality of fastening components (21), the plurality of fastening components (21) being capable of moving towards or away from a central axis of the base (1) to clamp or loosen the oil sample bottle; as well as electromagnets, wherein the electromagnets are multiple, and the multiple electromagnets are respectively arranged in the base (1) and at least one of the fastening components (21), and the multiple electromagnets are electrically connected to the power supply device (4) to absorb abrasive particles, wherein the multiple electromagnets are arranged in two rows, and the two rows of electromagnets are arranged in one of the fastening components (21). The shaken oil sample bottle is placed on the base (1), and the fastening components (21) are relatively moved to clamp the oil sample bottle; the power supply device (4) is connected to the two rows of electromagnets in one of the fastening components (21), and the two rows of electromagnets are energized for a first preset time; The electromagnets in the upper row are de-energized, and the electromagnets in the lower row are energized for the second preset time; The electromagnets in the lower row are de-energized, the power supply device (4) is connected to the electromagnets on the base (1), and the electromagnets on the base (1) are energized for a third preset time until all the abrasive particles settle at the bottom of the oil sample bottle.

2. The separation device for lubricating oil according to claim 1, characterized in that: The clamping mechanism also includes: A rocker component (22), the rocker component (22) being provided with two sections of external threads (221) in opposite directions, the two sections of the external threads (221) respectively cooperating with the internal threads of the two fastening components (21), wherein when the rocker component (22) is driven to rotate, the two fastening components (21) can move relative to or in opposite directions.

3. The separation device for lubricating oil according to claim 2, characterized in that: The fastening assembly (21) comprises: a fastener (211), the inner side wall of the fastener (211) being capable of contacting the outer side wall of the oil sample bottle; and A sliding block (212), the sliding block (212) being connected to the outer side wall of the fastener (211), the sliding block (212) being provided with a locking protrusion (2121) cooperating with the locking groove (11) of the base (1), and the rocker member (22) being rotatably inserted through the locking protrusion (2121) to drive the sliding block (212) to slide along the length direction of the locking groove (11).

4. The separation device for lubricating oil according to claim 3, characterized in that: The clamping mechanism further comprises a pressing plate (23), the pressing plate (23) being a Z-shaped structure, the pressing plate (23) being connected to the base (1), and protrusions (2122) being respectively provided at both ends of the sliding block (212), and one end of each pressing plate (23) being arranged above one of the protrusions (2122).

5. The separation device for lubricating oil according to claim 1, characterized in that: The electromagnet is arranged on the base (1) and is located between the two fastening components (21).

6. The separation device for lubricating oil according to claim 3, characterized in that: The two rows of electromagnets are arranged on one of the fasteners (211).

7. The separation device for lubricating oil according to claim 2, characterized in that: It also comprises a switch button (3), wherein the switch button (3) is connected to the electromagnet and the power supply device (4) respectively.

8. A detection pretreatment method for lubricating oil separation, characterized in that: The method comprises the following steps: S1, take out the used lubricating oil from the equipment and put it into the oil sample bottle; S2, placing the oil sample bottle on a shaking table, shaking the lubricating oil until the lubricating oil is in a uniform state; S3, placing the shaken oil sample bottle on a separation device for lubricating oil according to any one of claims 1 to 7 for solid-liquid separation until the abrasive particles settle to the bottom of the oil sample bottle; S4, taking out the lubricating oil from the middle of the oil sample bottle after solid-liquid separation, and completing the pretreatment of the lubricating oil before the physical and chemical property testing.

9. The detection pretreatment method for lubricating oil separation according to claim 8, characterized in that: The S3 step specifically includes the following steps: S31, placing the shaken oil sample bottle on the base (1), and driving the clamping mechanism The rocker member (22) is rotated so that the fastening assembly (21) of the clamping mechanism moves toward the central axis of the base (1) to clamp the oil sample bottle; S32, pressing the switch button (3) of the separation device for lubricating oil so that the power supply device (4) being connected to two rows of electromagnets on a fastener (211) of one of the fastening assemblies (21), and energizing the two rows of electromagnets for a first preset time; S33, the electromagnets in the upper row are de-energized, and the electromagnets in the lower row are continuously energized for a second A preset time period; S34, stopping the power supply to the electromagnets in the lower row, connecting the power supply device (4) to the electromagnets on the base (1), and powering the electromagnets on the base (1) for a third preset time until all the abrasive particles settle at the bottom of the oil sample bottle.

10. The detection pretreatment method for lubricating oil separation according to claim 8, characterized in that: In the step S2, the oscillation frequency is 0-550 rpm and the oscillation time is 0-120 min; and / or in the step S3, the solid-liquid separation time is 0-30 min.

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