Product oil quality detection device

Abstract

The invention relates to a product oil quality detection device. The product oil quality detection device comprises an inspection workbench and an intermittent rotating structure, fixed supporting legs on the two sides of the bottom of the inspection workbench are connected with a stable support, and a motor base at the bottom is fixed to the inspection workbench through a vertical connecting plate. The driving end of the first motor is connected with the driving rotating shaft. By means of the intermittent rotating structure, after the sample is detected, a subsequent sample can be conveniently and rapidly rotated to the position below the detection probe, the operation of frequently replacing the sample is avoided, and the detection efficiency is greatly improved. Besides, a cleaning structure arranged on the device can effectively remove residual samples on the detection probe, detection errors caused by residues are prevented, and the problems that in the prior art, time is consumed for replacing the samples, the detection efficiency is low, and the detection errors are prone to occurring are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of finished oil detection, and in particular to a finished oil quality detection device. Background Art

[0002] As the product of crude oil after a series of complex production and processing processes, refined oil covers six categories: petroleum fuels, petroleum solvents and chemical raw materials, lubricants, paraffin, petroleum asphalt, and petroleum coke. Among them, petroleum fuels dominate in terms of output, accounting for about 90% of the total output; while lubricants are the most diverse in variety, with an output of about 5% of the total output. In view of the importance of refined oil in the economic and industrial fields, countries have carefully formulated strict and detailed product standards to ensure that refined oil can accurately meet the technical requirements of the production process and various needs in the actual use process.

[0003] Quality inspection is a vital link in the production chain of refined oil. At present, the existing refined oil quality inspection devices have obvious limitations. Most traditional inspection devices are only capable of testing a single group of samples in sequence, and cannot achieve batch inspection of multiple groups of samples. This means that in the actual inspection operation process, every time a group of samples is completed, the staff must manually replace the samples. This process not only requires the staff to spend a lot of time and energy to operate carefully, but also the inspection equipment is idle during the interval between sample replacements, which greatly reduces the overall inspection efficiency and seriously affects the production progress.

[0004] In addition, after the test process is completed, some components of the previous set of samples often remain on the test probe. These residual samples are very likely to be mixed into the new sample system when the next set of samples is tested, thereby interfering with the accuracy of the test results and causing test errors. This situation will not only greatly reduce the reliability of the test data, but may also cause staff to make inappropriate decisions based on erroneous data, causing many inconveniences and potential risks to the entire production process, increasing production costs and time costs, and also posing huge challenges to product quality control. Summary of the invention

[0005] The present invention provides a finished oil quality detection device, comprising: an inspection workbench and an intermittent rotating structure;

[0006] Fixed legs are fixedly connected to both sides of the bottom of the inspection workbench, and the bottom of the fixed legs is fixedly connected to a stable support, and a motor seat is provided at the bottom of the inspection workbench, and the motor seat is fixedly connected to the inspection workbench through a vertical connecting plate; a first motor is fixedly installed on the motor seat, and a driving end of the first motor is fixedly connected to a driving rotating shaft, and an irregular gear is fixedly connected to the outer side of the driving rotating shaft, a rotating plate is provided at the top of the inspection workbench, and a passive rotating column is fixedly connected to the bottom of the rotating plate, and a gear is fixedly connected to the outer side of the passive rotating column, and the gear is rotatably engaged with the irregular gear, and there are six groups of sinks in a circular array on the rotating plate, and a material bucket is placed in the sink, and an insertion slot is provided at the bottom of the rotating plate.

[0007] Preferably, the rotating carrier is provided with an installation limit structure, which includes an installation support plate, a limit arc plate, a limit top plate, a connecting support plate, a separate hole and an insertion block. The rotating carrier is provided with an installation support plate, and the outer side of the installation support plate is fixedly connected to the limit arc plate, and the inner wall of the limit arc plate is in contact with the outer side wall of the material storage barrel. The top of the limit arc plate is fixedly connected to the limit top plate, and the bottom of the installation support plate is fixedly connected to the connecting support plate, and the separate hole is provided on the connecting support plate, and the bottom of the connecting support plate is fixedly connected to the insertion block. The installation limit structure also includes a connecting seat, a fixed bracket, a connecting cross bar, a limit bar, a compression spring and an electromagnet. The bottom of the installation support plate is provided with a connecting seat, and the two sides of the top of the connecting seat are fixedly connected to the fixed brackets, and the connecting cross bar is fixedly connected between the fixed brackets, and the two sides of the connecting cross bar are fixedly connected to the limit bars, and the middle of the connecting cross bar is fixedly installed with an electromagnet, and the outer side of the connecting cross bar is sleeved with a compression spring.

[0008] Preferably, the installation limit structure also includes a magnet, a sliding hole, a limit transverse groove, a connecting rod and a separate rod. Magnets are provided at both ends of the outer side of the connecting transverse rod, and a sliding hole is provided in the middle of the magnet, and limit transverse grooves are provided on both sides of the sliding hole. At the same time, connecting rods are fixedly connected to both sides of the magnet, and separate rods are fixedly connected to the connecting rods, and the separate rods are inserted into the separate holes. A cleaning structure is provided on the inspection workbench, and the cleaning structure includes a fixed support plate, a vertical fixed plate, a guide slide groove, a fixed transverse plate, a rotating seat, a second motor and a screw rod. A fixed support plate is fixedly connected to one side of the inspection workbench, and vertical fixed plates are fixedly connected to both sides of the bottom of the fixed support plate, and a guide slide groove is provided on the inner side of the vertical fixed plate. At the same time, a fixed transverse plate is fixedly connected to the bottom of the vertical fixed plate, and a rotating seat is fixedly connected to the top of the fixed transverse plate, and a second motor is fixedly installed on the top of the fixed support plate, and the driving end of the second motor is fixedly connected to the screw rod, and the bottom of the screw rod is installed in the rotating seat.

[0009] Preferably, the cleaning structure further comprises a moving belt block, a screw hole, a guide slider, a recessed frame, a first hinged ear, a first shaft column and a double-headed articulated frame, a moving belt block is provided between the vertical fixed plates, and a screw hole is provided on the moving belt block, and at the same time, the two sides of the moving belt block are fixedly connected to the guide slider, one end of the moving belt block is fixedly connected to the recessed frame, and the two ends of the top inner side of the recessed frame are fixedly connected to the first hinged ear, and at the same time, the first hinged ear is hingedly connected to the top end of the double-headed articulated frame through the first shaft column. The cleaning structure further comprises a pneumatic cylinder, a telescopic rod, a connecting plate, a second hinged ear, a second shaft column and a wiping cotton, a pneumatic cylinder is fixedly installed on the top of the recessed frame, and the driving end of the pneumatic cylinder is fixedly connected to the telescopic rod, and at the same time, the bottom of the telescopic rod is fixedly connected to the connecting plate, and the two sides of the connecting plate are fixedly connected to the second hinged ear, and the second hinged ear is hingedly connected to the bottom end of the double-headed articulated frame through the second shaft column, and at the same time, a wiping cotton is provided on the recessed frame.

[0010] Preferably, a detection instrument is fixedly mounted on one side of the fixed support plate, and a detection probe is fixedly mounted on the bottom of the connecting plate, and the detection probe is electrically connected to the detection instrument.

[0011] The finished oil quality detection device provided by the present invention has the following beneficial effects

[0012] 1. The present invention is provided with an intermittent rotation structure and six groups of material buckets are arranged on the rotating carrier, so there is no need to frequently replace samples. It is only necessary to start the first motor to drive the driving rotating shaft to rotate, and the driving rotating shaft drives the irregular gear to rotate, and the irregular gear meshing gear rotates intermittently, and then the gear drives the rotating carrier to rotate intermittently through the passive rotating column, which is convenient for transferring the next group of samples to the detection probe in time after the sample is tested, thereby greatly improving the detection efficiency of the sample.

[0013] 2. The present invention is provided with a cleaning structure. By starting the second motor to drive the screw to rotate, the screw and the screw hole on the moving belt block are rotatably engaged, but the moving belt block is limited and guided in the guide groove by the guide slider, so that the screw drives the moving belt block to move downward, so that the moving belt block inserts the detection probe into the material bucket through the recessed frame to detect the sample. After the detection, the second motor reverses to drive the detection probe to rise, and then starts the pneumatic cylinder to drive the telescopic rod to contract, so that the telescopic rod drives the connecting plate to rise, and the connecting plate folds its double-headed articulated frame under the second articulated ear and the second shaft column, and then the connecting plate drives the detection probe to wipe and clean it through the wiping cotton, thereby cleaning the residual samples on the detection probe to avoid affecting the detection data of the next group of samples.

[0014] 3. The present invention is provided with an installation limit structure. By starting the electromagnet, the magnet is driven to move under the principle of opposite poles attracting each other, so that the magnet drives the rod to move, and then the insertion block at the bottom of the installation support plate is inserted into the insertion slot, and then the electromagnet is closed. When the magnet moves, the compression spring on the outside of the connecting cross bar is squeezed to make the compression spring produce elastic deformation, thereby pushing the magnet to move, and then the magnet drives the rod to be inserted into the hole, so that the installation support plate is installed on the rotating carrier, and then the material barrel is limited with the cooperation of the limit arc plate and the limit top plate to avoid the displacement of the material barrel. It is also convenient to release the limit, which reduces the downtime of the equipment and improves the detection efficiency of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0016] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 Shows a schematic diagram of the overall structure according to the present invention;

[0019] Figure 2 A schematic diagram of an intermittent rotation structure according to the present invention is shown;

[0020] Figure 3 A schematic diagram of the structure of the rotating carrier plate in the intermittent rotating structure according to the present invention is shown;

[0021] Figure 4 It shows a schematic diagram of the structure of some components of the installation limit structure according to the present invention;

[0022] Figure 5 A schematic diagram of the structure of magnets and rods in the installation and limiting structure according to the present invention is shown;

[0023] Figure 6 It shows a schematic structural diagram of the mounting support plate, the limiting arc plate and the limiting top plate in the mounting limiting structure according to the present invention;

[0024] Figure 7 A schematic diagram of a lifting structure in a cleaning structure according to the present invention is shown;

[0025] Figure 8 A schematic diagram of a wiping cleaning structure in a cleaning structure according to the present invention is shown;

[0026] Reference numerals list

[0027] 1. Inspection workbench;

[0028] 101. Fix the legs; 1011. Stabilize the support;

[0029] 2. Intermittent rotation structure;

[0030] 201, motor seat; 2011, vertical connecting plate;

[0031] 202, first motor; 2021, driving rotating shaft; 2022, irregular gear; 2023, gear; 2024, passive rotating column; 2025, rotating carrier; 2026, sink; 2027, insertion slot;

[0032] 203, material barrel;

[0033] 3. Install the limiting structure;

[0034] 301, mounting support plate; 3011, limiting arc plate; 3012, limiting top plate; 3013, connecting support plate; 3014, other holes; 3015, plug-in block;

[0035] 302, connecting seat; 3021, fixing bracket; 3022, connecting cross bar; 3023, limiting strip; 3024, compression spring;

[0036] 303, electromagnet;

[0037] 304, magnet; 3041, sliding hole; 3042, limiting horizontal groove; 3043, connecting rod; 3044, lever;

[0038] 4. Clean up the structure;

[0039] 401, fixed support plate; 4011, vertical fixed plate; 4012, guide slide; 4013, fixed horizontal plate; 4014, rotating seat;

[0040] 402, second motor; 4021, lead screw;

[0041] 403, moving belt block; 4031, screw hole; 4032, guide slider; 4033, recessed frame; 4034, first hinged ear; 4035, first shaft column;

[0042] 404, double-ended articulated frame;

[0043] 405, pneumatic cylinder; 4051, telescopic rod; 4052, connecting plate; 4053, second hinged ear; 4054, second shaft column;

[0044] 406, wiping cotton;

[0045] 5. Testing instruments;

[0046] 501. Detection probe. DETAILED DESCRIPTION

[0047] Example: Please refer to Figures 1 to 8 :

[0048] The present invention proposes a finished oil quality detection device, comprising: an inspection workbench 1 and an intermittent rotating structure 2;

[0049] The two sides of the bottom of the inspection workbench 1 are fixedly connected with fixed legs 101 respectively, and the bottom of the fixed legs 101 is fixedly connected with a stable support 1011, and a motor seat 201 is provided at the bottom of the inspection workbench 1, and the motor seat 201 is fixedly connected to the inspection workbench 1 through a vertical connecting plate 2011; a first motor 202 is fixedly installed on the motor seat 201, and a driving rotating shaft 2021 is fixedly connected to the driving end of the first motor 202, and an irregular gear 2022 is fixedly connected to the outer side of the driving rotating shaft 2021, and a rotating carrier 2025 is provided at the top of the inspection workbench 1, and a passive rotating column 2024 is fixedly connected to the bottom of the rotating carrier 2025, and the outer side of the passive rotating column 2024 is fixedly connected to the rotating shaft 2021. A gear 2023 is fixedly connected to the side, and the gear 2023 is rotatably engaged with the irregular gear 2022. There are six groups of sink grooves 2026 in a circular array on the rotating carrier 2025, and a material bucket 203 is placed in the sink groove 2026. At the same time, an insertion slot 2027 is provided at the bottom of the rotating carrier 2025. By starting the first motor 202, the driving rotating shaft 2021 is driven to rotate, and the driving rotating shaft 2021 drives the irregular gear 2022 to rotate. The irregular gear 2022 is engaged to drive the gear 2023 to rotate intermittently, so that the gear 2023 drives the rotating carrier 2025 to rotate through the passive rotating column 2024, and the rotating carrier 2025 drives the material bucket 203 to move intermittently to the bottom of the detection probe 501.

[0050] Embodiment 2: Based on Embodiment 1, Figure 4 , Figure 5 and Figure 6As shown, a mounting limit structure 3 is provided in the rotating carrier 2025, and the mounting limit structure 3 includes a mounting support plate 301, a limit arc plate 3011, a limit top plate 3012, a connecting support plate 3013, a separate hole 3014 and an insertion block 3015. The rotating carrier 2025 is provided with a mounting support plate 301, and the outer side of the mounting support plate 301 is fixedly connected to the limit arc plate 3011, and the inner wall of the limit arc plate 3011 is in contact with the outer wall of the material holding barrel 203, the top of the limit arc plate 3011 is fixedly connected to the limit top plate 3012, and the bottom of the mounting support plate 301 is fixedly connected to the connecting support plate 3013, and the separate hole 3014 is opened on the connecting support plate 3013, and the bottom of the connecting support plate 3013 is fixedly connected The mounting block 3015 is connected, and the installation limiting structure 3 also includes a connecting seat 302, a fixed bracket 3021, a connecting cross bar 3022, a limiting strip 3023, a compression spring 3024 and an electromagnet 303. The bottom of the mounting support plate 301 is provided with a connecting seat 302, and the two sides of the top of the connecting seat 302 are fixedly connected with the fixed brackets 3021, and the connecting cross bar 3022 is fixedly connected between the fixed brackets 3021. The limiting strip 3023 is fixedly connected to both sides of the connecting cross bar 3022, and the electromagnet 303 is fixedly installed in the middle of the connecting cross bar 3022. At the same time, the outer side of the connecting cross bar 3022 is sleeved with a compression spring 3024. The installation limiting structure 3 also includes a magnet 304, a sliding hole 3041, a limiting cross groove 3 042, connecting rod 3043 and separate rod 3044, magnets 304 are provided at both ends of the outer side of connecting cross bar 3022, and a sliding hole 3041 is provided in the middle of magnet 304, and limited transverse grooves 3042 are provided on both sides of sliding hole 3041, and connecting rod 3043 is fixedly connected to both sides of magnet 304, separate rod 3044 is fixedly connected to connecting rod 3043, and separate rod 3044 is inserted into separate hole 3014, and magnet 304 is driven to move by starting electromagnet 303 under the principle of opposite poles attracting each other, so that magnet 304 drives separate rod 3044 to move, and then the insertion block 3015 at the bottom of mounting support plate 301 is inserted into insertion slot 2027, and then electromagnet 303 is closed, and when magnet 304 moves The compression spring 3024 on the outer side of the connecting cross bar 3022 is squeezed to make the compression spring 3024 produce elastic deformation, thereby pushing the magnet 304 to move, and then the magnet 304 drives the rod 3044 to be inserted into the hole 3014, so that the mounting support plate 301 is installed on the rotating carrier 2025, and then the material bucket 203 is limited with the cooperation of the limiting arc plate 3011 and the limiting top plate 3012 to prevent the material bucket 203 from shifting. When releasing the limit, it is only necessary to start the electromagnet 303 to drive the magnet 304 to move, and the magnet 304 drives the rod 3044 to disengage from the hole 3014, and then the mounting support plate 301 can be disassembled, so that the material bucket 203 can be removed, thereby reducing the downtime of the equipment and improving the detection efficiency of the sample.

[0051] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 7 and Figure 8As shown, a cleaning structure 4 is provided on the inspection workbench 1, and the cleaning structure 4 includes a fixed support plate 401, a vertical fixed plate 4011, a guide slide groove 4012, a fixed transverse plate 4013, a rotating seat 4014, a second motor 402 and a screw rod 4021. A fixed support plate 401 is fixedly connected to one side of the inspection workbench 1, and vertical fixed plates 4011 are fixedly connected to both sides of the bottom of the fixed support plate 401, and a guide slide groove 4012 is provided on the inner side of the vertical fixed plate 4011, and at the same time, a fixed transverse plate 4013 is fixedly connected to the bottom of the vertical fixed plate 4011, and a rotating seat 4014 is fixedly connected to the top of the fixed transverse plate 4013, and a second motor 402 is fixedly installed on the top of the fixed support plate 401, and the second motor 402 The driving end of the cleaning structure 4 is fixedly connected with a screw rod 4021, and the bottom of the screw rod 4021 is installed in the rotating seat 4014. The cleaning structure 4 also includes a moving belt block 403, a screw hole 4031, a guide slider 4032, a recessed frame 4033, a first hinged ear 4034, a first shaft column 4035 and a double-headed hinged frame 404. A moving belt block 403 is provided between the vertical fixed plates 4011, and a screw hole 4031 is provided on the moving belt block 403. At the same time, the two sides of the moving belt block 403 are fixedly connected with the guide slider 4032, one end of the moving belt block 403 is fixedly connected with the recessed frame 4033, and the two ends of the top inner side of the recessed frame 4033 are fixedly connected with the first hinged ear 4034, and the first hinged ear 4034 is connected to the first shaft column 4035. The cleaning structure 4 is hinged to the top end of the double-headed articulated frame 404. The cleaning structure 4 also includes a pneumatic cylinder 405, a telescopic rod 4051, a connecting plate 4052, a second hinged ear 4053, a second shaft column 4054 and a wiping cotton 406. The pneumatic cylinder 405 is fixedly installed on the top of the recessed frame 4033, and the driving end of the pneumatic cylinder 405 is fixedly connected to the telescopic rod 4051. At the same time, the bottom of the telescopic rod 4051 is fixedly connected to the connecting plate 4052, and the two sides of the connecting plate 4052 are fixedly connected to the second hinged ear 4053, and the second hinged ear 4053 is hinged to the bottom end of the double-headed articulated frame 404 through the second shaft column 4054. At the same time, a wiping cotton 406 is provided on the recessed frame 4033, and a detector is fixedly installed on one side of the fixed support plate 401 The detection probe 501 is fixedly installed at the bottom of the connecting plate 4052, and the detection probe 501 is electrically connected to the detection instrument 5. The second motor 402 is started to drive the screw rod 4021 to rotate, and the screw rod 4021 is engaged with the screw hole 4031 on the moving belt block 403. However, the moving belt block 403 is limited and guided in the guide groove 4012 by the guide slider 4032, so that the screw rod 4021 drives the moving belt block 403 to move downward, so that the moving belt block 403 inserts the detection probe 501 into the material bucket 203 through the recess 4033 to detect the sample. After the detection, the second motor 402 is reversed to drive the detection probe 501 to rise, and then the pneumatic cylinder 405 is started to drive the telescopic rod 4051 to retract.Thus, the telescopic rod 4051 drives the connecting plate 4052 to rise, and the connecting plate 4052 folds the double-headed hinge frame 404 under the cooperation of the second hinged ear 4053 and the second shaft column 4054, and then the connecting plate 4052 drives the detection probe 501 to be wiped and cleaned by the wiping cotton 406, thereby cleaning the residual sample on the detection probe 501.

[0052] A method for detecting the quality of refined oil: first, the electromagnet 303 is started to drive the magnet 304 to move under the principle of opposite poles attracting each other, so that the magnet 304 drives the rod 3044 to move, and then the insertion block 3015 at the bottom of the mounting support plate 301 is inserted into the insertion slot 2027, and then the electromagnet 303 is turned off, and when the magnet 304 moves, the compression spring 3024 connected to the outer side of the cross bar 3022 is squeezed to make the compression spring 3024 produce elastic deformation, thereby pushing the magnet 304 to move, and then the magnet 304 drives the rod 3044 to be inserted into the insertion hole 3014, thereby installing the mounting support plate 301 on the rotating carrier plate 2025, and then limiting the material bucket 203 under the cooperation of the limiting arc plate 3011 and the limiting top plate 3012 to prevent the material bucket 203 from deviating, and then starting the first motor 202 to drive the driving rotating shaft 2021 to rotate, the driving rotating shaft 2021 drives the irregular gear 2022 to rotate, the irregular gear 2022 meshes and drives the gear 2023 to rotate intermittently, so that the gear 2023 drives the rotating carrier plate 2025 to rotate through the passive rotating column 2024, and the rotating The carrier plate 2025 drives the material storage barrel 203 to intermittently move to the bottom of the detection probe 501, and then the second motor 402 is started to drive the screw rod 4021 to rotate, and the screw rod 4021 is engaged with the screw hole 4031 on the moving belt block 403, but the moving belt block 403 is limited and guided in the guide groove 4012 by the guide slider 4032, so that the screw rod 4021 drives the moving belt block 403 to move downward, so that the moving belt block 403 inserts the detection probe 501 into the material storage barrel 203 through the recess 4033 to detect the sample, and the detection After completion, the second motor 402 reverses and drives the detection probe 501 to rise, and then starts the pneumatic cylinder 405 to drive the telescopic rod 4051 to contract, so that the telescopic rod 4051 drives the connecting plate 4052 to rise, and the connecting plate 4052 folds the double-headed articulated frame 404 with the cooperation of the second hinged ear 4053 and the second shaft column 4054, and then the connecting plate 4052 drives the detection probe 501 to wipe and clean it with the wiping cotton 406, and then cleans the residual samples on the detection probe 501 to avoid affecting the detection data of the next group of samples.

Claims

1. A finished oil quality detection device, comprising: An inspection workbench (1) and an intermittent rotating structure (2); The bottom sides of the inspection workbench (1) are respectively fixedly connected with fixed legs (101), and the bottom of the fixed legs (101) is fixedly connected with a stable support (1011), and the bottom of the inspection workbench (1) is provided with a motor seat (201), and the motor seat (201) is fixedly connected to the inspection workbench (1) through a vertical connecting plate (2011); it is characterized in that a first motor (202) is fixedly installed on the motor seat (201), and the driving end of the first motor (202) is fixedly connected to a driving rotating shaft (2021), and the outer side of the driving rotating shaft (2021) is fixedly connected An irregular gear (2022) is provided, a rotating carrier (2025) is provided on the top of the inspection workbench (1), and a passive rotating column (2024) is fixedly connected to the bottom of the rotating carrier (2025), and a gear (2023) is fixedly connected to the outer side of the passive rotating column (2024), and the gear (2023) is rotatably engaged with the irregular gear (2022), six groups of sink grooves (2026) are provided in a circular array on the rotating carrier (2025), and a material containing bucket (203) is placed in the sink groove (2026), and an insertion groove (2027) is provided at the bottom of the rotating carrier (2025).

2. A refined oil quality detection device according to claim 1, characterized in that: The rotating carrier (2025) is provided with an installation limiting structure (3), and the installation limiting structure (3) comprises an installation support plate (301), a limiting arc plate (3011), a limiting top plate (3012), a connecting support plate (3013), a separate hole (3014) and an insertion block (3015). The rotating carrier (2025) is provided with an installation support plate (301), and the outer side of the installation support plate (301) is fixedly connected to the limiting arc plate (3011), and the inner wall of the limiting arc plate (3011) is in contact with the outer wall of the material holding barrel (203). The top of the limiting arc plate (3011) is fixedly connected to the limiting top plate (3012), and the bottom of the installation support plate (301) is fixedly connected to the connecting support plate (3013), and the connecting support plate (3013) is provided with a separate hole (3014), and the connecting support plate (3013) is provided with a separate hole (3014). The bottom of the connecting support plate (3013) is fixedly connected with an insert block (3015); the installation limiting structure (3) also includes a connecting seat (302), a fixed bracket (3021), a connecting cross bar (3022), a limiting strip (3023), a compression spring (3024) and an electromagnet (303); the bottom of the installing support plate (301) is provided with a connecting seat (302), and the two sides of the top of the connecting seat (302) are fixedly connected with fixed brackets (3021), and the connecting cross bars (3022) are fixedly connected between the fixed brackets (3021); the two sides of the connecting cross bars (3022) are fixedly connected with the limiting strips (3023), and the middle of the connecting cross bars (3022) is fixedly installed with an electromagnet (303), and the outer side of the connecting cross bars (3022) is sleeved with a compression spring (3024).

3. A refined oil quality detection device according to claim 2, characterized in that: The installation limiting structure (3) also includes a magnet (304), a sliding hole (3041), a limiting transverse groove (3042), a connecting rod (3043) and a separate rod (3044); magnets (304) are provided at both ends of the outer side of the connecting transverse rod (3022); a sliding hole (3041) is provided in the middle of the magnet (304); and limiting transverse grooves (3042) are provided on both sides of the sliding hole (3041); connecting rods (3043) are fixedly connected to both sides of the magnet (304); a separate rod (3044) is fixedly connected to the connecting rod (3043), and the separate rod (3044) is inserted into the separate hole (3014); a cleaning structure (4) is provided on the inspection workbench (1); the cleaning structure (4) includes a fixed support plate (401), a vertical fixed plate (4011), a guide sliding groove (4012), A fixed transverse plate (4013), a rotating seat (4014), a second motor (402) and a screw rod (4021); a fixed support plate (401) is fixedly connected to one side of the inspection workbench (1); and vertical fixed plates (4011) are fixedly connected to both sides of the bottom of the fixed support plate (401); and a guide groove (4012) is provided on the inner side of the vertical fixed plate (4011); and a fixed transverse plate (4013) is fixedly connected to the bottom of the vertical fixed plate (4011); and a rotating seat (4014) is fixedly connected to the top of the fixed transverse plate (4013); and a second motor (402) is fixedly installed on the top of the fixed support plate (401); and a screw rod (4021) is fixedly connected to the driving end of the second motor (402); and the bottom of the screw rod (4021) is installed in the rotating seat (4014).

4. A refined oil quality detection device according to claim 3, characterized in that: The cleaning structure (4) further comprises a moving belt block (403), a screw hole (4031), a guide slider (4032), a recessed frame (4033), a first hinged ear (4034), a first shaft column (4035) and a double-headed hinged frame (404); a moving belt block (403) is arranged between the vertical fixed plates (4011), and a screw hole (4031) is provided on the moving belt block (403); at the same time, the two sides of the moving belt block (403) are fixedly connected with the guide slider (4032); one end of the moving belt block (403) is fixedly connected with the recessed frame (4033), and the two ends of the top inner side of the recessed frame (4033) are fixedly connected with the first hinged ear (4034); at the same time, the first hinged ear (4034) is connected to the double-headed hinged frame (404) through the first shaft column (4035). The cleaning structure (4) further comprises a pneumatic cylinder (405), a telescopic rod (4051), a connecting plate (4052), a second hinged ear (4053), a second shaft column (4054) and a wiping cotton (406). The pneumatic cylinder (405) is fixedly mounted on the top of the recessed frame (4033), and the driving end of the pneumatic cylinder (405) is fixedly connected to the telescopic rod (4051), and the bottom of the telescopic rod (4051) is fixedly connected to the connecting plate (4052), and the two sides of the connecting plate (4052) are fixedly connected to the second hinged ear (4053), and the second hinged ear (4053) is hingedly connected to the bottom end of the double-headed hinged frame (404) through the second shaft column (4054), and the wiping cotton (406) is provided on the recessed frame (4033).

5. A refined oil quality detection device according to claim 4, characterized in that: A detection instrument (5) is fixedly mounted on one side of the fixed support plate (401), and a detection probe (501) is fixedly mounted on the bottom of the connecting plate (4052), and the detection probe (501) is electrically connected to the detection instrument (5).

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