Oil-water separation device with self-cleaning function

Abstract

The application relates to the technical field of machine tools, in particular to an oil-water separation device with a self-cleaning function, which comprises a main body, first and second collecting grooves are arranged on the two sides in the main body, the first collecting groove is used for collecting separated cooling liquid, and the second collecting groove is used for collecting oil dirt; an oil-water separation plate is arranged above the first collecting groove, and the oil-water separation plate is used for separating and filtering the oil dirt mixed in the cooling liquid; the oil dirt mixed in the cooling liquid is filtered and separated through the structure of the oil-water separation plate, the separated oil dirt is guided into the second collecting groove through the overturning structure of the oil-water separation plate, the oil dirt and metal scraps mixed in the cooling liquid are filtered and screened out through the structure of the filter screen, and the treated cooling liquid is guided out through a discharge pipe, so that the cooling liquid can be quickly put into use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tools, in particular to an oil-water separation device with self-cleaning function. BACKGROUND

[0002] A lathe is a machine tool mainly used for turning workpieces rotating with a turning tool. On the lathe, drilling, reaming, reamer, tap, die and knurling tool can also be used for corresponding processing. The lathe is mainly used for machining shafts, discs, sleeves and other rotating surface workpieces, and is the most widely used machine tool in mechanical manufacturing and repair factories.

[0003] In the prior art, the machine tool generates a large amount of heat during work. In order to improve the cooling performance of the machine tool, the machine tool cooling liquid is usually used to cool the machine tool. The cooling liquid is easy to mix with oil stains during use, which often affects its use. The oil stains inside are usually filtered and removed by oil-water separation.

[0004] However, the existing oil-water separation method is easy to cause the filtered oil stains to accumulate inside the equipment, causing the equipment to be blocked and affecting the oil-water separation efficiency. SUMMARY

[0005] The purpose of the present application is to provide an oil-water separation device with self-cleaning function to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] An oil-water separation device with self-cleaning function, comprising: a main body, the main body is provided with a first collecting groove and a second collecting groove on both sides, the first collecting groove collects the separated cooling liquid, and the second collecting groove collects oil stains;

[0008] An oil-water separation plate is arranged above the first collecting groove, and the oil-water separation plate separates and filters the oil stains mixed in the cooling liquid;

[0009] A lifting frame is arranged below the oil-water separation plate, and a scraper is arranged on the outer side of the lifting frame, the scraper scrapes off the oil stains adhered to the inner wall of the first collecting groove;

[0010] A oil scraping plate is slidably connected above the oil-water separation plate, and the oil scraping plate assists in guiding the oil stains into the second collecting groove when the oil-water separation plate is in the second collecting groove, thereby accelerating the oil stain collection rate.

[0011] Further, the front side of the main body is provided with a switch door for mounting and taking out the first collecting tank and the second collecting tank, the upper inner wall of the main body above the first collecting tank is provided with a support frame, the upper side of the support frame is supported and connected with a support, the inner side of the support is provided with a filter screen, the filter screen filters the metal debris mixed in the cooling liquid and oil dirt, and the upper side of the main body above the second collecting tank is sealed.

[0012] Further, the first collecting tank and the second collecting tank are attached side by side in the main body, one side adjacent to the first collecting tank and the second collecting tank is provided with a flow pipe, the flow pipe extends into the second collecting tank, the bottom of the first collecting tank is provided with an opening, the part below the opening of the first collecting tank in the main body is provided with a discharge pipe, the discharge pipe is in communication with the opening of the first collecting tank, and the discharge pipe is provided with an opening and closing assembly.

[0013] Further, an oil-water separation plate is slidably connected to the inside of the first collecting tank, first sealing gaskets are arranged on the side walls of the oil-water separation plate, the oil-water separation plate is sealed and slid with the inner wall of the first collecting tank through the first sealing gaskets, symmetrically distributed first vertical columns are arranged below the side of the oil-water separation plate away from the second collecting tank, symmetrically distributed second vertical columns are arranged below the side of the oil-water separation plate close to the second collecting tank, the first vertical columns and the second vertical columns are fixedly connected with the inner wall of the bottom of the first collecting tank, and the height of the first vertical columns is greater than that of the second vertical columns.

[0014] Further, the first vertical columns and the second vertical columns are provided with a hollow structure, a lifting column is vertically and slidably connected in the hollow of the first vertical columns and the second vertical columns, sealing rings are arranged on the inner walls of the top of the first vertical columns and the second vertical columns, the first vertical columns and the second vertical columns are sealed and slid with the lifting column through the sealing rings, a first spring is arranged below the lifting column, one end of the first spring is fixedly connected with the lower side of the lifting column, the other end of the first spring is fixedly connected with the inner wall of the bottom of the first vertical columns and the second vertical columns, a first rotating wheel is fixedly connected with the top of the lifting column, the first rotating wheel is hingedly connected with a connecting frame, and the connecting frame is mounted below the oil-water separation plate.

[0015] Further, the first and second columns are respectively through the lifting frame and are in sliding connection with the lifting frame, a second sealing gasket is arranged on the side wall of the lifting frame, the lifting frame is in sealed sliding with the inner wall of the first collecting groove through the second sealing gasket, a float is installed below the lifting frame, when the cooling liquid is accumulated at the bottom of the first collecting groove, the lifting frame is controlled to slide upward, a filter plate is installed on the inner side of the lifting frame, the filter plate performs secondary filtration on the downward flowing cooling liquid, and oil stains mixed into the cooling liquid are blocked on the surface of the filter plate, and a baffle is fixedly installed below the side of the lifting frame which faces the flow-through pipe.

[0016] Further, the lifting frame is in sliding connection with the scraper on the outer side thereof, a plurality of pushing blocks are fixedly connected to the lifting frame, the pushing blocks are in horizontal sliding connection with the push rod, the end of the push rod is fixedly connected with the inner side of the scraper, a plurality of spline grooves are arranged on the outer wall of the push rod, symmetrical splines are fixedly connected to the inner wall of the pushing block, the splines are in sliding connection with the spline grooves, the second spring is arranged on the side of the push rod which faces the pushing block, the two ends of the second spring are fixedly connected with the push rod and the inner wall of the pushing block respectively, the end of the push rod is further fixedly connected with a connecting rope, the connecting rope penetrates through the pushing block and is fixedly connected with the lower side of the oil-water separation plate.

[0017] Further, the main body is fixedly connected with guide rails on the inner walls of the two sides above the first collecting groove, the sliding table is in horizontal sliding connection with the guide rails, the sliding plate is fixedly installed between the two sliding tables, the elastic assembly is arranged between the sliding plate and the left inner wall of the main body, the oil scraping plate is in sliding connection with the lower side of the sliding plate, the lower side of the oil scraping plate is in abutment with the upper surface of the oil-water separation plate, a plurality of movable grooves are arranged on the upper side of the oil scraping plate, the fixed column is in vertical sliding connection with the movable grooves, the lower side of the fixed column is fixedly connected with the upper side of the sliding plate, the third spring is arranged on the lower side of the fixed column, one end of the third spring is fixedly connected with the lower side of the fixed column, and the other end of the third spring is fixedly connected with the inner wall of the movable groove.

[0018] Further, the oil-water separation plate is hinged with the second rotating wheel above the second column, the rack is fixedly connected with the upper side of the second rotating wheel, the limiting assembly for the rack is arranged on the inner wall of the main body, the rack is in vertical sliding connection with the main body, the gear wheel is arranged on one side of the rack, the gear wheel is in meshing transmission with the rack, the gear wheel is installed on the outer side of the winding wheel, the gear wheel rotates coaxially with the winding wheel, the winding wheel is in rotating connection with the inner wall of the main body through the shaft, the pull rope is wound on the winding wheel, and the other end of the pull rope is fixedly connected with the sliding plate.

[0019] Compared with the prior art, the present application has the beneficial effects that:

[0020] 1. The oil-water separation plate of the present application can filter and separate the oil stains mixed in the cooling liquid, and the separated oil stains are guided into the second collecting tank through the overturning structure of the oil-water separation plate. The oil stains and metal scraps mixed in the cooling liquid are filtered and removed through the structure of the filter screen, and the treated cooling liquid is guided out through the discharge pipe, so that the cooling liquid can be quickly put into use.

[0021] 2. The structure of the float makes the lifting frame rise or lower with the change of the solution height in the first collecting tank after the discharge pipe is closed. After the cleaning liquid is injected into the first collecting tank, the lifting frame rises upward, the scraper gradually pops out outward without changing the position of the oil-water separation plate, and after the scraper rises to the flow height of the oil stains, it tightly adheres to the inner wall of the first collecting tank to scrape off the stubborn oil stains adhering to the inner wall and make them fall onto the filter plate. The oil stains are dissolved by the cleaning liquid to avoid the accumulation and solidification of the oil stains on the inner wall of the first collecting tank, which affects the normal sliding of the oil-water separation plate and the lifting frame.

[0022] 3. The structure of the rack and pinion controls the rotation of the pinion when the oil-water separation plate moves downward and overturns, so that the wire reel retracts the rope, which drives the sliding plate to slide horizontally, moves the scraper plate horizontally on the surface of the oil-water separation plate, scrapes off the oil stains accumulated on the surface of the oil-water separation plate, and avoids the blockage of the surface of the oil-water separation plate, so that the cooling liquid cannot flow downward through the oil-water separation plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the three-dimensional structure of the present application;

[0024] Figure 2 is a schematic view of the cross-sectional structure of the present application;

[0025] Figure 3 is a schematic view of the Figure 2 enlarged structure at A in the present application;

[0026] Figure 4 is a schematic view of the cross-sectional structure of the first stand column of the present application;

[0027] Figure 5 is a schematic view of the Figure 4 enlarged structure at B in the present application;

[0028] Figure 6 is a schematic view of the cross-sectional structure of the propelling block of the present application;

[0029] Figure 7 is a schematic view of the Figure 6Amplified structure schematic view at C;

[0030] Figure 8 Amplified structure schematic view at C;

[0031] Figure 9 Amplified structure schematic view at C; Figure 8 Amplified structure schematic view at C;

[0032] Figure 10 Amplified structure schematic view at C;

[0033] Figure 11 Amplified structure schematic view at C; Figure 10 Amplified structure schematic view at C.

[0034] In the figure: 1, main body; 11, switch door; 12, guide rail; 2, filter screen; 21, support; 3, first collection groove; 31, second collection groove; 32, flow pipe; 33, discharge pipe; 4, oil-water separation plate; 41, first sealing gasket; 42, first stand; 43, second stand; 44, sealing ring; 45, lifting column; 46, first spring; 47, first rotating wheel; 48, connecting frame; 5, lifting frame; 51, second sealing gasket; 52, float; 53, filter plate; 54, baffle; 6, scraper; 61, propelling block; 62, push rod; 63, spline; 64, second spring; 65, connecting rope; 7, sliding table; 71, sliding plate; 72, oil scraping plate; 73, fixed column; 74, third spring; 8, rack; 81, second rotating wheel; 9, winding wheel; 91, gear; 92, pull rope. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail in conjunction with the drawings.

[0036] Please refer to Figures 1 to 11 The present application provides a technical solution: an oil-water separation device with self-cleaning function, comprising a main body 1, the main body 1 is provided with a first collection groove 3 and a second collection groove 31 on both sides, the first collection groove 3 collects the separated cooling liquid, and the second collection groove 31 collects the oil stains;

[0037] After oil-water separation, the first collection groove 3 collects and drains the separated cooling liquid, and the second collection groove 31 collects the separated oil stains.

[0038] An oil-water separation plate 4 is arranged above the first collection groove 3, which separates and filters the oil stains mixed in the cooling liquid;

[0039] The oil and water separation plate 4 is used to filter and block the oil stains mixed in the cooling liquid, so that the cooling liquid can continue to move downward through the oil and water separation plate 4, and the oil stains cannot pass through the oil and water separation plate 4, thereby realizing the oil and water separation effect.

[0040] The lifting frame 5 is arranged below the oil and water separation plate 4, and the outer side of the lifting frame 5 is provided with a scraper 6, which scrapes the oil stains adhered to the inner wall of the first collecting groove 3.

[0041] The oil stains adhered to the inner wall above the first collecting groove 3 are scraped by the lifting of the lifting frame 5 and the structure of the scraper 6, so that the oil stains are not accumulated on the inner wall above the first collecting groove 3 for a long time, and the normal upward and downward sliding of the oil and water separation plate 4 is not hindered after solidification.

[0042] The oil and water separation plate 4 is slidably connected with an oil scraping plate 72, which assists in guiding the oil stains into the second collecting groove 31 when the oil and water separation plate 4 moves upward, thereby accelerating the collection rate of the oil stains.

[0043] The oil and water separation plate 4 is slidably connected with an oil scraping plate 72, which assists in guiding the oil stains into the second collecting groove 31 when the oil and water separation plate 4 moves upward, thereby accelerating the collection rate of the oil stains.

[0044] The front side of the main body 1 is provided with a switch door 11 for installing and taking out the first collecting groove 3 and the second collecting groove 31, and the upper inner wall of the main body 1 located above the first collecting groove 3 is provided with a support frame, the upper side of the support frame is supportingly connected with a support 21, the inner side of the support 21 is provided with a filter screen 2, the filter screen 2 filters the metal scraps mixed in the cooling liquid and the oil stains, and the main body 1 is sealed above the second collecting groove 31.

[0045] The opening of the switch door 11 facilitates the taking out of the first collecting groove 3 and the second collecting groove 31 from the main body 1, and the structure of the support frame and the support 21 facilitates the installation and disassembly of the filter screen 2, so that the metal scraps filtered on the upper surface of the filter screen 2 can be cleaned in time to avoid blocking the mesh of the filter screen 2.

[0046] The first collecting groove 3 and the second collecting groove 31 are arranged side by side in the main body 1, one side of the first collecting groove 3 and the second collecting groove 31 is provided with a flow pipe 32, the flow pipe 32 extends into the second collecting groove 31, the bottom of the first collecting groove 3 is provided with an opening, the part of the main body 1 below the opening of the first collecting groove 3 is provided with a discharge pipe 33, the discharge pipe 33 is in communication with the opening of the first collecting groove 3, and the discharge pipe 33 is provided with an opening and closing assembly.

[0047] Through the structure of the flow pipe 32, the oil stains filtered in the first collecting groove 3 are introduced into the second collecting groove 31, and through the structure of the discharge pipe 33, the cooling liquid filtered in the first collecting groove 3 is discharged outward, so that the cooling liquid can be quickly used after oil-water separation.

[0048] The oil-water separation plate 4 is slidably connected to the inside of the first collecting groove 3, the side wall of the oil-water separation plate 4 is provided with a first sealing gasket 41, the oil-water separation plate 4 is sealed and slid with the inner wall of the first collecting groove 3 through the first sealing gasket 41, the side of the oil-water separation plate 4 away from the second collecting groove 31 is provided with symmetrically distributed first vertical columns 42, the side of the oil-water separation plate 4 close to the second collecting groove 31 is provided with symmetrically distributed second vertical columns 43, the first vertical columns 42 and the second vertical columns 43 are fixedly connected with the inner wall of the bottom of the first collecting groove 3, and the height of the first vertical columns 42 is greater than that of the second vertical columns 43.

[0049] Through the structure of the first sealing gasket 41, the upper and lower spaces of the oil-water separation plate 4 in the first collecting groove 3 are separated, so that the cooling liquid can only flow downward through the oil-water separation plate 4, so that the oil stains mixed in the cooling liquid are separated and filtered by the oil-water separation plate 4, and the filtered oil stains cannot re-mix into the cooling liquid through the gap on the side of the oil-water separation plate 4.

[0050] The first vertical columns 42 and the second vertical columns 43 are provided in a hollow structure, a lifting column 45 is vertically and slidably connected in the hollow of the first vertical columns 42 and the second vertical columns 43, and a sealing ring 44 is arranged on the inner wall of the top of the first vertical columns 42 and the second vertical columns 43, the first vertical columns 42 and the second vertical columns 43 are sealed and slid with the lifting column 45 through the sealing ring 44, a first spring 46 is arranged below the lifting column 45, one end of the first spring 46 is fixedly connected with the bottom of the first vertical columns 42 and the second vertical columns 43, the other end of the first spring 46 is fixedly connected with the inner wall of the bottom of the first vertical columns 42 and the second vertical columns 43, a first rotating wheel 47 is fixedly connected to the top of the lifting column 45, the first rotating wheel 47 is hingedly connected with a connecting frame 48, and the connecting frame 48 is installed below the oil-water separation plate 4.

[0051] The oil-water separation plate 4 can slide up and down in the first collecting groove 3 by sliding of the lifting column 45 in the first stand 42 and the second stand 43, and due to the height of the first stand 42 being greater than the height of the second stand 43, the accumulation of oil stains on the surface of the oil-water separation plate 4 makes the overall mass greater than the elastic force of the first spring 46, that is, the oil-water separation plate 4 slides downward, so that the first rotating wheel 47 will first abut against the upper end of the first stand 42 in the process of the lifting column 45 sliding downward in the two, and the first rotating wheel 47 is rotationally connected with the oil-water separation plate 4 through the connecting frame 48, so that the oil-water separation plate 4 is flipped towards the second stand 43, so that the oil stains accumulated on the surface of the oil-water separation plate 4 flow into the flow-through pipe 32 and are introduced into the second collecting groove 31, and after the introduction is completed, the oil-water separation plate 4 slides upward to the horizontal position under the elastic force of the first spring 46.

[0052] The first stand 42 and the second stand 43 respectively penetrate through the lifting frame 5 and are in sliding connection with the lifting frame 5, a second sealing gasket 51 is arranged on the side wall of the lifting frame 5, the lifting frame 5 is in sealing sliding connection with the inner wall of the first collecting groove 3 through the second sealing gasket 51, a float 52 is installed below the lifting frame 5, the lifting frame 5 slides upward when the cooling liquid is accumulated at the bottom of the first collecting groove 3, a filter plate 53 is installed inside the lifting frame 5, the filter plate 53 performs secondary filtration on the downward flowing cooling liquid, so that the oil stains mixed into the cooling liquid are stopped on the surface of the filter plate 53, and a baffle 54 is fixedly installed below the side of the lifting frame 5 facing the flow-through pipe 32.

[0053] When it is necessary to clean the equipment, clean liquid is injected into the first collecting groove 3, and the discharge pipe 33 is closed, so that the clean liquid is accumulated in the first collecting groove 3, the lifting frame 5 vertically slides upward under the buoyancy of the float 52, and the oil-water separation plate 4 does not hinder the flow of the clean liquid, so that the clean liquid is not accumulated on the surface of the oil-water separation plate 4, that is, the oil-water separation plate 4 does not descend during the cleaning process, and after the lifting frame 5 rises to the highest point, the baffle 54 abuts against the flow-through pipe 32, so that the flow-through pipe 32 is closed to avoid the clean liquid flowing out of the first collecting groove 3;

[0054] The filter plate 53 in the lifting frame 5 performs secondary oil stain filtration on the downward flowing cooling liquid during the oil-water separation process, thereby improving the filtration effect.

[0055] The squeegee 6 is slidably connected to the outer side of the lifting frame 5, a plurality of pushing blocks 61 are fixedly connected to the lifting frame 5, the pushing blocks 61 are horizontally slidably connected with the push rod 62, the end of the push rod 62 is fixedly connected with the inner side of the squeegee 6, a plurality of spline grooves are arranged on the outer wall of the push rod 62, symmetrically distributed splines 63 are fixedly connected to the inner wall of the pushing block 61, the splines 63 are slidably connected with the spline grooves, the push rod 62 is provided with a second spring 64 on the side facing the inside of the pushing block 61, the two ends of the second spring 64 are fixedly connected with the push rod 62 and the inner wall of the pushing block 61 respectively, the end of the push rod 62 is further fixedly connected with a connecting rope 65, the connecting rope 65 penetrates through the pushing block 61 and is fixedly connected with the lower side of the oil-water separation plate 4.

[0056] When the lifting frame 5 rises without changing the height of the oil-water separation plate 4, the connecting rope 65 is gradually loosened, so that the squeegee 6 is popped out outward under the elastic force of the second spring 64, after the squeegee 6 rises to the flow height of the oil stain in the first collecting groove 3, the squeegee 6 tightly abuts against the inner wall of the first collecting groove 3, and the oil stain adhered to the inner wall of the first collecting groove 3 is scraped off and falls on the filter plate 53, and the stubborn oil stain is dissolved with the flushing of the cleaning liquid, the discharge pipe 33 is opened, and the cleaning liquid and the dissolved oil stain are discharged outward.

[0057] The guide rails 12 are fixedly connected to the inner walls on both sides of the main body 1 above the first collecting groove 3, the sliding tables 7 are horizontally slidably connected to the guide rails 12, the sliding plates 71 are fixedly installed between the sliding tables 7 on both sides, the elastic components are arranged between the sliding plates 71 and the left inner wall of the main body 1, the oil scraping plates 72 are slidably connected below the sliding plates 71, the lower side of the oil scraping plates 72 abuts against the upper surface of the oil-water separation plate 4, a plurality of movable grooves are arranged above the oil scraping plates 72, the fixed columns 73 are vertically slidably connected in the movable grooves, the lower side of the fixed columns 73 is fixedly connected with the upper side of the sliding plates 71, the third springs 74 are arranged below the fixed columns 73, one end of the third springs 74 is fixedly connected with the lower side of the fixed columns 73, and the other end of the third springs 74 is fixedly connected with the inner wall of the movable grooves.

[0058] The part of the oil-water separation plate 4 above the second vertical column 43 is hinged with a second rotating wheel 81, the upper part of the second rotating wheel 81 is fixedly connected with a rack 8, a limiting assembly for the rack 8 is arranged on the inner wall of the main body 1, the rack 8 is in vertical sliding connection with the main body 1, one side of the rack 8 is provided with a gear 91, the gear 91 is in meshing transmission with the rack 8, the gear 91 is installed on the outer side of a winding wheel 9, the gear 91 rotates coaxially with the winding wheel 9, one side of the winding wheel 9 is in rotating connection with the inner wall of the main body 1 through a shaft, the winding wheel 9 is wound with a pull rope 92, the other end of the pull rope 92 is fixedly connected with the sliding plate 71.

[0059] In the process of overturning the oil-water separation plate 4 downward, the rack 8 is vertically slid downward, due to the meshing transmission between the rack 8 and the gear 91, in the process of the downward sliding of the rack 8, the winding wheel 9 is driven to overturn, the pull rope 92 is wound on the winding wheel 9, the other end of the pull rope 92 pulls the sliding plate 71 to move along the direction of the oil-water separation plate 4, the sliding table 7 is horizontally slid along the guide rail 12, under the elastic force of the third spring 74, the oil scraping plate 72 is vertically popped out and tightly contacts the upper surface of the oil-water separation plate 4, even if the oil-water separation plate 4 is overturned, the oil scraping plate 72 can still tightly contact the upper surface of the oil-water separation plate 4, the oil scraping plate 72 assists the delivery of the oil stains on the surface of the oil-water separation plate 4 and scrapes off the oil stains accumulated and solidified on the surface of the oil-water separation plate 4, avoids the blockage caused by the large accumulation of solidified oil stains, after the oil stains on the surface of the oil-water separation plate 4 are guided, the oil-water separation plate 4 is reset upward, under the action of the elastic assembly, the sliding plate 71 slides to the reset position in the opposite direction.

[0060] In addition, any omissions, modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An oil-water separator with self-cleaning function, characterized in that, include: The main body is equipped with a first collection tank and a second collection tank on both sides. The first collection tank collects the separated coolant, and the second collection tank collects the oil. An oil-water separator plate is positioned above the first collection tank to separate and filter the oil contaminants mixed in the coolant. A lifting frame is positioned below the oil-water separator plate, and a scraper is located on the upper outer side of the lifting frame to scrape off the oil contaminants adhering to the inner wall of the first collection tank. An oil scraper plate is slidably connected above the oil-water separator plate to assist the oil-water separator plate in introducing oil contaminants into the second collection tank, thereby accelerating the oil collection rate. An oil-water separator plate is slidably connected to the upper part of the first collection tank. Each side wall of the oil-water separator plate is provided with a first sealing gasket. The oil-water separator plate slides and seals against the inner wall of the first collection tank through the first sealing gasket. A first column is symmetrically distributed below the side of the oil-water separator plate away from the second collection tank, and a second column is symmetrically distributed below the side of the oil-water separator plate close to the second collection tank. The first column and the second column are fixedly connected to the bottom inner wall of the first collection tank, and the height of the first column is greater than that of the second column. Both the first and second columns are hollow structures. A lifting column is vertically slidably connected inside the cavities of the first and second columns. Sealing rings are respectively provided on the top inner walls of the first and second columns. The first and second columns slide in a sealed manner with the lifting column through the sealing rings. A first spring is provided below the lifting column. One end of the first spring is fixedly connected to the bottom of the lifting column, and the other end of the first spring is fixedly connected to the bottom inner walls of the first and second columns. A first rotating wheel is fixedly connected to the top of the lifting column. The first rotating wheel is hinged to the connecting frame, which is installed below the oil-water separator plate. The first and second columns respectively pass through the lifting frame and are slidably connected to the lifting frame. The main body is located above the first collection tank. Guide rails are fixedly connected to the inner walls on both sides. A sliding table is horizontally slidably connected to the guide rails. A sliding plate is fixedly installed between the two sliding tables. An elastic component is provided between the sliding plate and the inner wall on the left side of the main body. An oil scraper is slidably connected below the sliding plate. The lower part of the oil scraper abuts against the upper surface of the oil-water separation plate. Several movable grooves are provided above the oil scraper. A fixed column is vertically slidably connected in the movable groove. The upper part of the fixed column is fixedly connected to the lower part of the sliding plate. A third spring is provided below the fixed column. One end of the third spring is fixedly connected to the lower part of the fixed column, and the other end of the third spring is fixedly connected to the inner wall of the movable groove. The oil-water separator plate is hinged to a second rotating wheel above the second column. A rack is fixedly connected above the second rotating wheel. A limiting component is provided on the inner wall of the main body to limit the rack. The rack is vertically slidably connected to the main body. A gear is provided on one side of the rack. The gear meshes with the rack for transmission. The gear is installed on the outside of the winding wheel and rotates coaxially with the winding wheel. One side of the winding wheel is rotatably connected to the inner wall of the main body through a shaft. A pull rope is wound on the winding wheel, and the other end of the pull rope is fixedly connected to the slide plate.

2. The oil-water separator with self-cleaning function according to claim 1, characterized in that, The main body is equipped with a switch door on the front side, which is used to install and remove the first and second collection tanks. The main body is located on the inner wall above the first collection tank and is equipped with a support frame. A bracket is connected to the upper part of the support frame. A filter screen is provided on the inner side of the bracket. The filter screen filters out metal debris mixed in with coolant and oil. The main body is located above the second collection tank and is sealed.

3. The oil-water separator with self-cleaning function according to claim 2, characterized in that, The first and second collection tanks are attached side by side inside the main body. A flow pipe is provided on the adjacent side of the first and second collection tanks. The flow pipe extends into the second collection tank. The bottom of the first collection tank is provided with an opening. The part of the main body located below the opening of the first collection tank is provided with a discharge pipe. The discharge pipe is connected to the opening of the first collection tank. An opening and closing component is provided on the discharge pipe.

4. The oil-water separator with self-cleaning function according to claim 1, characterized in that, A second sealing gasket is provided on the side wall of the lifting frame. The lifting frame slides in a sealed manner with the inner wall of the first collection tank through the second sealing gasket. A float is installed below the lifting frame. When coolant accumulates at the bottom of the first collection tank, it controls the lifting frame to slide upward. A filter plate is installed on the inner side of the lifting frame. The filter plate performs secondary filtration on the downward flowing coolant, so that the oil mixed in with the coolant is trapped on the surface of the filter plate. A baffle is fixedly installed below the side of the lifting frame facing the flow pipe.

5. The oil-water separator with self-cleaning function according to claim 1, characterized in that, A scraper is slidably connected to the upper outer side of the lifting frame. Several push blocks are fixedly connected to the lifting frame. A push rod is slidably connected horizontally inside the push block. The end of the push rod is fixedly connected to the inner side of the scraper. Several spline grooves are provided on the outer wall of the push rod. Symmetrically distributed splines are fixedly connected to the inner wall of the push block. The splines are slidably connected to the spline grooves. A second spring is provided on the side of the push rod facing the inside of the push block. The two ends of the second spring are fixedly connected to the push rod and the inner wall of the push block, respectively. A connecting rope is also fixedly connected to the end of the push rod. The connecting rope passes through the push block and is fixedly connected to the bottom of the oil-water separation plate.

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