Hydraulic oil tank with high cleaning performance

Abstract

The invention provides a hydraulic oil tank with high cleaning performance, which relates to the technical field of hydraulic oil tanks and comprises a tank body, an oil pan and an oil tank cover, an oil return pipe and an oil suction pipe are respectively arranged at two ends of the tank body, an oil return cavity, an overflow cavity and an oil suction cavity are arranged in the tank body, the oil pan is arranged at the bottom of the tank body, and the oil tank cover is fixedly mounted at the top of the tank body. The quick release assemblies are mounted on the outer side of the tank body, the two cleaning assemblies correspond to the oil return cavity and the oil suction cavity in the tank body in position and are mounted on the oil tank cover, and the overflow assembly corresponds to the overflow cavity in the tank body in position and is mounted on the oil tank cover. The cleaning assembly is driven to clean impurities adhering to the inner wall of the rectangular oil tank, bubbles and floating foam on the surface of the oil body are eliminated in the cleaning process, the cleaning performance of the oil tank is improved, meanwhile, the cleaning assembly is in linkage with the overflow assembly to heat the oil body, and the oil tank can meet the use requirement of the cold environment.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic oil tanks, and particularly to a hydraulic oil tank with high cleaning performance. Background Art

[0002] The main function of a hydraulic oil tank is to store oil. In addition, it also plays roles such as dissipating heat from the oil, precipitating impurities, and allowing air in the oil to escape. A hydraulic oil tank generally has a cubic shape, and its interior is divided by a partition into a return oil chamber and a suction oil chamber. Through the isolation of the partition, the oil in the return oil chamber flows into the suction oil chamber, and solid impurities precipitate.

[0003] Traditional hydraulic oil tanks mostly adopt the partition precipitation circulation type. During the precipitation process, impurities are prone to adsorb and stick to the inner wall of the oil tank (hydraulic oil tanks are mostly rectangular, with precipitation dead corners). Long-term accumulation will contaminate the hydraulic oil. If cleaning is required, the oil tank needs to be disassembled for cleaning, resulting in low overall cleaning efficiency. Moreover, only using the partition return oil method, although it prolongs the circulation time of the hydraulic oil, in cold environments, the fluidity of the oil body is weak, and the viscosity of the oil body becomes larger, leading to low efficiency of air bubble escape, and unable to meet the usage requirements in extreme environments. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art that during the precipitation process, impurities are prone to adsorb and stick to the inner wall of the oil tank, long-term accumulation will contaminate the hydraulic oil, if cleaning is required, the oil tank needs to be disassembled for cleaning, resulting in low overall cleaning efficiency, and only using the partition return oil method, although it prolongs the circulation time of the hydraulic oil, in cold environments, the fluidity of the oil body is weak, and the oil viscosity is high, leading to low efficiency of air bubble escape, and unable to meet the usage requirements in extreme environments.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: A hydraulic oil tank with high cleaning performance, including a box body, an oil sump and a tank cover. The two ends of the box body are respectively provided with a return oil pipe and a suction oil pipe, and the interior of the box body is provided with a return oil chamber, an overflow chamber and a suction oil chamber. The oil sump is arranged at the bottom of the box body for precipitating solid impurities. The tank cover is fixedly installed on the top of the box body. Air filters are threadedly installed on the tank cover corresponding to the positions of the return oil chamber and the suction oil chamber of the box body. It further includes:

[0006] A plurality of quick-release components installed on the outer side of the box body for fixing the oil sump;

[0007] Two cleaning components installed on the tank cover corresponding to the positions of the return oil chamber and the suction oil chamber in the box body;

[0008] An overflow component installed on the tank cover corresponding to the position of the overflow chamber in the box body.

[0009] In at least some embodiments, the inner bottom of the oil pan inclines towards the oil return cavity and is provided with a plurality of sediment diversion parts. A plurality of magnetic attraction sheets are fixedly adhered to the sediment diversion parts of the oil pan, and the magnetism of the plurality of magnetic attraction sheets gradually weakens along the direction towards the oil return cavity.

[0010] In at least some embodiments, the quick-release assembly includes a protective cover, a pinch block, and a clamping block. The protective cover is fixedly installed at the outer end of the box body. Two first gears are rotatably installed inside the protective cover. There are two pinch blocks and two clamping blocks respectively, and they are meshed and connected above and below the first gear. The pinch blocks and the clamping blocks are both movably inserted into the protective cover. A return spring is fixedly installed between the two pinch blocks. Four insertion columns are integrally formed on the outside of the oil pan, and two card slots corresponding to the size of the clamping block are opened on the insertion columns.

[0011] In at least some embodiments, the cleaning assembly includes a toothed disc, an annular toothed ring, and a rectangular toothed ring. A cavity is opened inside the fuel tank cap, and the annular toothed ring is fixedly installed in the cavity inside the fuel tank cap. A first connecting rod is rotatably installed at the center of the top of the toothed disc. The first connecting rod is fixedly installed with a shaft, and the shaft is rotatably installed on the fuel tank cap. Two transmission shafts are rotatably installed on the top of the fuel tank cap. First bevel gears are fixedly installed at both ends of the transmission shafts. A driving motor is fixedly installed on the top of the fuel tank cap. A second bevel gear meshed with the first bevel gear is fixedly installed on the output shaft of the driving motor. A third bevel gear meshed with the first bevel gear is fixedly installed on the shaft of the first connecting rod. The toothed disc is meshed with the annular toothed ring and is eccentrically arranged. An installation frame is fixedly installed at the bottom of the first connecting rod, and the installation frame is placed inside the box body. A scraping strip is fixedly clamped on the installation frame.

[0012] In at least some embodiments, one end of the scraping strip is provided with three convex strip parts to form a trident shape with a longitudinal guiding channel. The convex strip part in the middle of the scraping strip is longer than the convex strip parts on both sides, and the convex strip parts on both sides of the scraping strip incline towards the middle.

[0013] In at least some embodiments, the rectangular toothed ring is fixedly installed at the bottom of the fuel tank cap. An anti-foaming disc is rotatably installed on the installation frame. A second gear meshed with the rectangular toothed ring is fixedly installed at the top of the shaft of the anti-foaming disc.

[0014] In at least some embodiments, a round hole is concentrically opened at the bottom of the anti-foaming disc, and guide vanes are arranged in an annular array on the inner wall of the round hole. The guide vanes are tangent to the round hole at the bottom of the anti-foaming disc and incline along the flow direction. A plurality of centrifugal channels communicating with the round hole at the bottom are annularly arrayed inside the anti-foaming disc, and the centrifugal channels are tangent to the round hole at the bottom.

[0015] In at least some embodiments, the overflow assembly includes an upper heat-conducting seat, a lower heat-conducting seat, an overflow head, and a friction block. The upper heat-conducting seat is embedded in the fuel tank cap and its top is flush with the top of the fuel tank cap. A friction seat is provided on the top of the upper heat-conducting seat. The friction block is slidably mounted on the top of the friction seat. A limiting groove is formed in the friction block, and a second connecting rod is slidably mounted in the limiting groove of the friction block. The other end of the second connecting rod is fixedly connected to the output shaft of the driving motor. The upper heat-conducting seat and the lower heat-conducting seat are fixedly inserted and a plurality of overflow holes are formed in the middle.

[0016] In at least some embodiments, a plurality of the overflow heads are provided and are arranged between the upper heat-conducting seat and the lower heat-conducting seat. A plurality of spiral flow channels are formed on the outer surface of the overflow head. A plurality of confluence holes communicating with the spiral flow channels are formed at one end of the overflow head close to the oil suction cavity of the tank body, and a flow guiding cone head is arranged in the confluence holes.

[0017] In at least some embodiments, both between the upper heat-conducting seat and the lower heat-conducting seat are made of high heat-conducting brass material. A plurality of heat-conducting fins are integrally formed at the bottom of the upper heat-conducting seat, and a plurality of slots are formed at the top of the lower heat-conducting seat corresponding to the positions of the heat-conducting fins of the upper heat-conducting seat.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0019] 1. In the present invention, by driving the gear disk in the cleaning assembly to rotate by the driving motor, under the action of the Reuleaux triangle principle, the scraping strip will be driven to move along a square path to scrape and clean the impurities adsorbed on the inner wall of the rectangular fuel tank, solving the problems of large sediment dead angles and difficult cleaning of the rectangular fuel tank. At the same time, since the mounting frame moves along a square path, the second gear on the defoaming disk will mesh with the rectangular gear ring, and the defoaming disk will be driven to rotate through the meshing action during the movement, and the defoaming disk rotates to remove the bubbles on the surface of the hydraulic oil, improving the overall cleaning performance of the fuel tank.

[0020] 2. In the present invention, when the driving motor drives the cleaning assembly to operate, it will drive the second connecting rod in the overflow assembly to rotate. The rotation of the second connecting rod drives the friction block to reciprocate and generate heat by friction with the friction seat. The oil flowing through the overflow head is heated by the upper heat-conducting seat and the lower heat-conducting seat, reducing the viscosity of the oil body, improving the fluidity of the fluid, and increasing the bubble escape rate, meeting the use requirements of the hydraulic fuel tank under cold conditions. At the same time, the overflow head adopts a special multi-spiral flow channel design, the overall flow path becomes longer, extending the oil body sedimentation and bubble escape time, and the effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall three-dimensional schematic diagram of a hydraulic fuel tank with high cleaning performance proposed by the present invention;

[0022] Figure 2 is an exploded view of a hydraulic fuel tank with high cleaning performance proposed by the present invention;

[0023] Figure 3 This invention provides a schematic structural diagram of the middle box body of a hydraulic oil tank with high cleaning performance;

[0024] Figure 4 This invention provides a schematic structural diagram of the oil sump of a hydraulic oil tank with high cleaning performance;

[0025] Figure 5 This invention provides a front elevation perspective view of the oil sump of a hydraulic oil tank with high cleaning performance;

[0026] Figure 6 This invention provides a schematic structural diagram of the quick-release component of a hydraulic oil tank with high cleaning performance;

[0027] Figure 7 This invention provides a schematic structural diagram of the oil tank cover of a hydraulic oil tank with high cleaning performance;

[0028] Figure 8 This invention provides a schematic diagram of one perspective of the cleaning component of a hydraulic oil tank with high cleaning performance;

[0029] Figure 9 This invention provides a schematic diagram of another perspective of the cleaning component of a hydraulic oil tank with high cleaning performance;

[0030] Figure 10 This invention provides a schematic structural diagram of the defoaming disc of a hydraulic oil tank with high cleaning performance;

[0031] Figure 11 This invention provides an installation schematic diagram of the scraping strip of a hydraulic oil tank with high cleaning performance;

[0032] Figure 12 This invention provides a schematic structural diagram of the overflow component of a hydraulic oil tank with high cleaning performance;

[0033] Figure 13 This invention provides a schematic structural diagram of the overflow head of a hydraulic oil tank with high cleaning performance.

[0034] Legend: 1. Box body;

[0035] 2. Oil sump; 201. Precipitation diversion part; 202. Magnetic sheet; 203. Insertion column;

[0036] 3. Oil tank cover; 301. Transmission shaft; 302. First bevel gear; 303. Driving motor; 304. Second bevel gear; 305. Air filter;

[0037] 4. Quick-release component; 401. Protective cover; 402. Pinch block; 403. Block; 404. First gear; 405. Return spring;

[0038] 5. Cleaning assembly; 501. Tooth disc; 502. Annular gear ring; 503. Rectangular gear ring; 504. First connecting rod; 505. Third bevel gear; 506. Mounting bracket; 507. Scraping strip; 508. Defoaming disc; 509. Second gear; 510. Deflector; 511. Centrifugal channel;

[0039] 6. Overflow assembly; 601. Upper heat conduction seat; 602. Lower heat conduction seat; 603. Overflow head; 604. Friction block; 605. Second connecting rod; 606. Friction seat; 607. Spiral flow channel; 608. Confluence hole; 609. Deflecting conical head. Detailed implementation manner

[0040] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0041] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0042] Embodiment, according to Figures 1-13 , as Figure 1 and Figure 3 shown, a hydraulic oil tank with high cleaning performance provided by an embodiment of the present invention includes a box body 1, an oil sump 2 and a tank cover 3. Return oil pipes and suction pipes are respectively arranged at both ends of the box body 1, and an oil return cavity, an overflow cavity and a suction cavity are arranged inside. Temperature sensors for real-time monitoring of the oil body temperature are fixedly installed on the inner walls of the oil return cavity and the suction cavity in the box body 1. The oil sump 2 is arranged at the bottom of the box body 1 for precipitating solid impurities. The tank cover 3 is fixedly installed on the top of the box body 1. Air filters 305 are threadedly installed on the tank cover 3 corresponding to the positions of the oil return cavity and the suction cavity of the box body 1. Through the air filters 305, the bubbles escaping from the oil body in the box body 1 are discharged to prevent cavitation. It also includes a plurality of quick-release components 4 installed outside the box body 1 for fixing the oil sump 2, two cleaning components 5 installed on the tank cover 3 corresponding to the positions of the oil return cavity and the suction cavity in the box body 1, and an overflow component 6 installed on the tank cover 3 corresponding to the position of the overflow cavity in the box body 1.

[0043] As Figure 4 and Figure 5As shown in the figure, the inner bottom of the oil pan 2 is inclined towards the oil return cavity and is provided with a plurality of sediment diversion parts 201. A plurality of magnetic attraction pieces 202 are fixedly adhered to the sediment diversion parts 201 of the oil pan 2. The magnetism of the plurality of magnetic attraction pieces 202 decreases in a gradient along the direction towards the oil return cavity. Among them, because the bottom of the oil pan 2 is inclined towards the oil return cavity, whether in the oil return stage or the oil absorption stage, the solid impurities in the oil body will precipitate to the bottom of the fuel tank due to gravity and slide down towards the oil return cavity. During the sliding process, the impurities will fall into the sedimentation tank with a blocking effect for collection, and the metal impurities are adsorbed by the magnetic attraction pieces 202. Since the magnetism decreases in a gradient, the effect of classifying and collecting solid sediment impurities can be achieved.

[0044] As Figure 6 shown, the quick-release assembly 4 includes a protective cover 401, a pinch block 402 and a latch block 403. The protective cover 401 is fixedly installed at the outer end of the box body 1. Two first gears 404 are rotatably installed in the protective cover 401. There are two pinch blocks 402 and two latch blocks 403, which are respectively meshed and connected above and below the first gear 404. The pinch blocks 402 and the latch blocks 403 are both movably inserted into the protective cover 401. A return spring 405 is fixedly installed between the two pinch blocks 402. Four insertion columns 203 are integrally formed on the outside of the oil pan 2. Two card slots corresponding to the size of the latch block 403 are opened on the insertion columns 203. Among them, if it is necessary to disassemble and clean the oil pan 2, just pinch the two pinch blocks 402 to compress the return spring 405 to make the two pinch blocks 402 approach each other. The two pinch blocks 402 approach each other and drive the two latch blocks 403 to move away from each other through the meshing action with the first gear 404. The latch block 403 disengages from the card slot in the insertion column 203, and then the oil pan 2 can be removed. The installation of the oil pan 2 is the opposite of the above principle, achieving the purpose of quickly disassembling and cleaning the oil pan 2.

[0045] As Figures 7-9As shown, the cleaning component 5 includes a toothed disc 501, an annular toothed ring 502 and a rectangular toothed ring 503. A cavity is provided in the fuel tank cap 3, and the annular toothed ring 502 is fixedly installed in the cavity inside the fuel tank cap 3. A first connecting rod 504 is rotatably installed at the center of the top of the toothed disc 501. The first connecting rod 504 is fixedly installed with a shaft, and the shaft is rotatably installed on the fuel tank cap 3. Two transmission shafts 301 are rotatably installed on the top of the fuel tank cap 3. First bevel gears 302 are fixedly installed at both ends of the transmission shaft 301. A drive motor 303 is fixedly installed on the top of the fuel tank cap 3. A second bevel gear 304 meshed with the first bevel gear 302 is fixedly installed on the output shaft of the drive motor 303. A third bevel gear 505 meshed with the first bevel gear 302 is fixedly installed on the shaft of the first connecting rod 504. The toothed disc 501 is meshed with the annular toothed ring 502 and is eccentrically arranged. An installation frame 506 is fixedly installed at the bottom of the first connecting rod 504, and the installation frame 506 is placed inside the box body 1. A scraping strip 507 is fixedly clamped on the installation frame 506. Among them, the drive motor 303 drives the second bevel gear 304 to rotate. The rotation of the second bevel gear 304 drives the transmission shaft 301 to rotate through the meshing action with the first bevel gear 302. The rotation of the transmission shaft 301 drives the first connecting rod 504 to rotate through the meshing action between the second bevel gear 304 and the third bevel gear 505. The rotation of the first connecting rod 504 drives the toothed disc 501 to rotate. Under the limiting action of the annular toothed ring 502, the toothed disc 501 rotates, and the installation frame 506 moves along a rectangular path (using the Reuleaux triangle principle), while driving the scraping strip 507 to scrape the inner wall of the square box body 1, scraping off the impurities adsorbed on the inner wall, achieving the purpose of efficient cleaning. One end of the scraping strip 507 is provided with three convex strip parts to form a trident shape with a longitudinal guiding channel. The convex strip part in the middle of the scraping strip 507 is longer than the convex strip parts on both sides. The convex strip parts on both sides of the scraping strip 507 incline towards the middle. After the longer convex strip part in the middle of the scraping strip scrapes off the impurities on the inner wall of the fuel tank, the impurities enter the guiding channel and fall to the bottom of the fuel tank for collection under the limiting action of the convex strip parts on both sides, preventing the impurities from flying around after being scraped off, and improving the overall impurity collection effect.

[0046] As Figures 8-11As shown in the figure, the rectangular gear ring 503 is fixedly installed at the bottom of the fuel tank cap 3. A defoaming disc 508 is rotatably installed on the mounting bracket 506. At the top of the shaft of the defoaming disc 508, a second gear 509 meshed with the rectangular gear ring 503 is fixedly installed. A round hole is opened at the bottom of the defoaming disc 508 concentrically, and guide vanes 510 are arranged in an annular array on the inner wall of the round hole. The guide vanes 510 are tangent to the round hole at the bottom of the defoaming disc 508 and are inclined along the flow direction. A plurality of centrifugal channels 511 communicating with the round hole at the bottom are opened in the defoaming disc 508 in an annular array. The centrifugal channels 511 are tangent to the round hole at the bottom. Among them, since the mounting bracket 506 moves along a square path, the second gear 509 on the defoaming disc 508 will mesh with the rectangular gear ring 503. During the movement, the defoaming disc 508 is driven to rotate through the meshing action. The rotation of the defoaming disc 508 clears the bubbles on the surface of the hydraulic oil. Specifically, for the clearing principle, the rotation of the defoaming disc 508 drives the internal guide vanes 510 to rotate, so that a negative pressure is formed between the surface of the oil body and the round hole of the defoaming disc 508, and the bubbles are introduced into the defoaming disc 508 through the guide vanes 510. Then, using the principle of centrifugal force, the bubbles are thrown out through the centrifugal channels 511 to the inner wall of the box body 1, the bubbles are broken, and the gas escapes, completing defoaming, improving the overall defoaming effect of the fuel tank and the gas escape rate, and preventing cavitation from occurring when the oil body enters the oil pipe due to gas.

[0047] As Figure 12 shown, the overflow assembly 6 includes an upper heat conduction seat 601, a lower heat conduction seat 602, an overflow head 603 and a friction block 604. The upper heat conduction seat 601 is embedded in the fuel tank cap 3 and its top is flush with the top of the fuel tank cap 3. A friction seat 606 is provided on the top of the upper heat conduction seat 601. The friction block 604 is slidably installed on the top of the friction seat 606. A limiting groove is opened on the friction block 604. A second connecting rod 605 is slidably installed in the limiting groove of the friction block 604. The other end of the second connecting rod 605 is fixedly connected to the output shaft of the driving motor 303. The upper heat conduction seat 601 and the lower heat conduction seat 602 are fixedly inserted and a plurality of overflow holes are opened in the middle. Among them, during the operation of the driving motor 303 to drive the cleaning assembly 5, the second connecting rod 605 will be driven to rotate. The rotation of the second connecting rod 605 drives the friction block 604 to reciprocate through the limiting action of the limiting groove on the friction block 604. The reciprocating movement of the friction block 604 generates heat through friction with the friction seat 606. The overflow head 603 is heated through the upper heat conduction seat 601 and the lower heat conduction seat 602 (the upper heat conduction seat 601 and the lower heat conduction seat 602 adopt the method of multi-fin plate insertion to increase the heat conduction area and improve the heat conduction efficiency). When the oil body flows through the overflow head 603, it is heated, the viscosity of the oil body is reduced, the flow efficiency of the fluid is improved, and the gas escape rate is increased, meeting the use requirements of the hydraulic fuel tank under cold conditions.

[0048] As Figure 13As shown in the figure, there are multiple overflow heads 603 disposed between the upper heat conducting base 601 and the lower heat conducting base 602. Multiple spiral flow channels 607 are formed on the outer surface of the overflow head 603. A plurality of confluence holes 608 communicating with the spiral flow channels 607 are formed at one end of the overflow head 603 close to the oil suction chamber of the box body 1. A guiding cone head 609 is arranged in the confluence hole 608. Among them, the oil body flows to the confluence hole 608 through the spiral channels on the overflow head 603 for collection, and is guided out through the guiding cone head 609. Due to the adoption of the spiral channels, the overall flow path becomes longer, extending the sedimentation time of the oil body and the escape time of the bubbles, with better effects. Both the upper heat conducting base 601 and the lower heat conducting base 602 are made of high thermal conductivity brass. A plurality of heat conducting fins are integrally formed at the bottom of the upper heat conducting base 601. A plurality of slots are formed at the top of the lower heat conducting base 602 corresponding to the positions of the heat conducting fins of the upper heat conducting base 601. Among them, the overflow head 603 is heated by the upper heat conducting base 601 and the lower heat conducting base 602 (a multi-fin plate insertion method is adopted between the upper heat conducting base 601 and the lower heat conducting base 602 to increase the heat conducting area and improve the heat conducting efficiency).

[0049] Specific working principle: Connect the oil return pipe and the oil suction pipe on the fuel tank to an external circulating oil pump or equipment. During operation, the oil body for oil return enters the oil return chamber of the oil body, and the liquid level continuously rises. When it rises to the overflow hole, it overflows into the oil suction chamber. During the whole process, the driving motor 303 drives the second bevel gear 304 to rotate. The rotation of the second bevel gear 304 drives the transmission shaft 301 to rotate through the meshing action with the first bevel gear 302. The rotation of the transmission shaft 301 drives the first connecting rod 504 to rotate through the meshing action between the second bevel gear 304 and the third bevel gear 505. The rotation of the first connecting rod 504 drives the toothed disc 501 to rotate. Under the limiting action of the annular toothed ring 502, the toothed disc 501 rotates, and the mounting frame 506 moves along a rectangular path (adopting the Reuleaux triangle principle), while driving the scraping strip 507 to scrape the inner wall of the square box body 1, scraping off the impurities adsorbed on the inner wall to achieve the purpose of efficient cleaning. And because the mounting frame 506 moves along a square path, the second gear 509 on the defoaming disc 508 will mesh with the rectangular toothed ring 503. During the movement, the defoaming disc 508 is driven to rotate through the meshing action. The rotation of the defoaming disc 508 removes the bubbles on the surface of the hydraulic oil. The specific removal principle is that the rotation of the defoaming disc 508 drives the internal guide vanes 510 to rotate, forming a negative pressure between the surface of the oil body and the circular holes of the defoaming disc 508, and guiding the bubbles into the defoaming disc 508 through the guide vanes 510, and then using the principle of centrifugal force to make the bubbles be thrown out to the inner wall of the box body 1 through the centrifugal channel 511. The bubbles break and the gas escapes, completing defoaming, improving the overall defoaming effect and gas escape rate of the fuel tank, and preventing cavitation caused by gas when the oil body enters the oil pipe;

[0050] When using the fuel tank in a cold environment, during the operation of the driving motor 303 to drive the cleaning assembly 5, the second connecting rod 605 will be driven to rotate. The rotation of the second connecting rod 605 drives the friction block 604 to reciprocate through the limiting effect of the limiting groove on the friction block 604. The reciprocating movement of the friction block 604 generates heat through friction with the friction seat 606, and heats the overflow head 603 through the upper heat conduction seat 601 and the lower heat conduction seat 602 (the upper heat conduction seat 601 and the lower heat conduction seat 602 adopt the method of multi-fin plate insertion to increase the heat conduction area and improve the heat conduction efficiency). When the oil body flows through the overflow head 603, it is heated, reducing the viscosity of the oil body, improving the flow efficiency of the fluid, and increasing the bubble escape rate, meeting the use requirements of the hydraulic fuel tank under cold conditions;

[0051] At the same time, the oil body flows through the spiral channel on the overflow head 603 to the confluence hole 608 to gather, and is guided out through the guiding cone head 609. Due to the adoption of the spiral channel, the overall flow path becomes longer, extending the sedimentation time of the oil body and the bubble escape time, with better effects;

[0052] Finally, because the bottom of the oil pan 2 is inclined towards the oil return cavity, whether in the oil return stage or the oil suction stage, the solid impurities in the oil body will settle to the bottom of the fuel tank due to gravity and slide towards the oil return cavity. During the sliding process, the impurities will fall into the sedimentation tank with a blocking effect for collection, and the metal impurities are adsorbed by the magnetic sheet 202. Since the magnetism weakens in a gradient, the effect of classifying and collecting solid sediment impurities can be achieved. If the oil pan 2 needs to be disassembled and cleaned, just pinch the two pinch blocks 402 to compress the return spring 405 to make the two pinch blocks 402 approach each other. The mutual approach of the two pinch blocks 402 drives the two clamping blocks 403 to move away from each other through the meshing effect with the first gear 404. The clamping blocks 403 disengage from the clamping grooves in the plugging column 203, and the oil pan 2 can be removed. The installation of the oil pan 2 is the opposite of the above principle, achieving the purpose of quickly disassembling and cleaning the oil pan 2.

[0053] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A hydraulic oil tank with high cleaning performance, comprising a box body (1), an oil sump (2) and an oil tank cover (3), characterized in that: Both ends of the box body (1) are respectively provided with an oil return pipe and an oil suction pipe, and an oil return cavity, an overflow cavity and an oil suction cavity are arranged inside. The oil pan (2) is arranged at the bottom of the box body (1) for precipitating solid impurities. The fuel tank cap (3) is fixedly installed on the top of the box body (1). Air filters (305) are threadedly installed on the fuel tank cap (3) corresponding to the positions of the oil return cavity and the oil suction cavity of the box body (1). Further included are: A plurality of quick-release components (4) installed on the outer side of the box body (1) for fixing the oil pan (2); Two cleaning components (5) installed on the fuel tank cap (3) corresponding to the positions of the oil return cavity and the oil suction cavity inside the box body (1); An overflow component (6) installed on the fuel tank cap (3) corresponding to the position of the overflow cavity inside the box body (1).

2. The high-cleanliness hydraulic oil tank according to claim 1, wherein: The inner bottom of the oil pan (2) is inclined towards the oil return cavity and is provided with a plurality of precipitation diversion parts (201). A plurality of magnetic attraction pieces (202) are fixedly adhered to the precipitation diversion parts (201) of the oil pan (2). The magnetism of the plurality of magnetic attraction pieces (202) gradually weakens along the direction towards the oil return cavity.

3. A hydraulic oil tank with high cleaning performance according to claim 1, characterized in that: The quick-release component (4) includes a protective cover (401), a pinch block (402) and a clamping block (403). The protective cover (401) is fixedly installed at the outer end of the box body (1). Two first gears (404) are rotatably installed inside the protective cover (401). There are two pinch blocks (402) and two clamping blocks (403), which are respectively meshed and connected above and below the first gear (404). The pinch blocks (402) and the clamping blocks (403) are both movably inserted into the protective cover (401). A return spring (405) is fixedly installed between the two pinch blocks (402). Four insertion columns (203) are integrally formed on the outside of the oil pan (2). Two card slots are formed on the insertion columns (203) corresponding to the size of the clamping blocks (403).

4. A hydraulic oil tank with high cleaning performance according to claim 1, characterized in that: The cleaning component (5) includes a tooth disc (501), an annular tooth ring (502) and a rectangular tooth ring (503). A cavity is formed inside the fuel tank cap (3), and the annular tooth ring (502) is fixedly installed inside the cavity of the fuel tank cap (3). A first connecting rod (504) is rotatably installed at the center of the top of the tooth disc (501). The first connecting rod (504) is fixedly installed with a shaft, and the shaft is rotatably installed on the fuel tank cap (3). Two transmission shafts (301) are rotatably installed on the top of the fuel tank cap (3). First bevel gears (302) are fixedly installed at both ends of the transmission shafts (301). A driving motor (303) is fixedly installed on the top of the fuel tank cap (3). A second bevel gear (304) meshed with the first bevel gear (302) is fixedly installed on the output shaft of the driving motor (303). A third bevel gear (505) meshed with the first bevel gear (302) is fixedly installed on the shaft of the first connecting rod (504). The tooth disc (501) is meshed with the annular tooth ring (502) and is eccentrically arranged. An installation frame (506) is fixedly installed at the bottom of the first connecting rod (504), and the installation frame (506) is placed inside the box body (1). A scraping strip (507) is fixedly clamped on the installation frame (506).

5. The high-cleanliness hydraulic oil tank according to claim 4, wherein: One end of the scraping strip (507) is provided with three ribbed portions to form a trident shape with a longitudinal guiding channel. The ribbed portion in the middle of the scraping strip (507) is longer than the ribbed portions on both sides, and the ribbed portions on both sides of the scraping strip (507) incline towards the middle.

6. The high-cleanliness hydraulic oil tank according to claim 5, characterized in that: The rectangular gear ring (503) is fixedly installed at the bottom of the fuel tank cap (3). An air defoaming disc (508) is rotatably installed on the mounting frame (506). The top of the shaft of the air defoaming disc (508) is fixedly installed with a second gear (509) meshed with the rectangular gear ring (503).

7. A hydraulic oil tank with high cleaning performance according to claim 6, characterized in that: A circular hole is concentrically opened at the bottom of the air defoaming disc (508), and guide vanes (510) are arranged in an annular array on the inner wall of the circular hole. The guide vanes (510) are tangent to the circular hole at the bottom of the air defoaming disc (508) and incline along the flow. A plurality of centrifugal channels (511) communicating with the circular hole at the bottom are opened in the air defoaming disc (508) in an annular array, and the centrifugal channels (511) are tangent to the circular hole at the bottom.

8. A hydraulic oil tank with high cleaning performance according to claim 1, characterized in that: The overflow assembly (6) includes an upper heat conducting seat (601), a lower heat conducting seat (602), an overflow head (603) and a friction block (604). The upper heat conducting seat (601) is embedded in the fuel tank cap (3) and its top is flush with the top of the fuel tank cap (3). A friction seat (606) is arranged on the top of the upper heat conducting seat (601). The friction block (604) is slidably installed on the top of the friction seat (606). A limiting groove is opened on the friction block (604). A second connecting rod (605) is slidably installed in the limiting groove of the friction block (604), and the other end of the second connecting rod (605) is fixedly connected with the output shaft of the driving motor (303). The upper heat conducting seat (601) and the lower heat conducting seat (602) are fixedly inserted and a plurality of overflow holes are opened in the middle.

9. The high-cleanliness hydraulic oil tank according to claim 8, characterized in that: A plurality of overflow heads (603) are provided and arranged between the upper heat conducting seat (601) and the lower heat conducting seat (602). A plurality of spiral flow channels (607) are opened on the outer surface of the overflow head (603). A plurality of confluence holes (608) communicating with the spiral flow channels (607) are opened at one end of the overflow head (603) close to the oil suction cavity of the box body (1), and a guide cone head (609) is arranged in the confluence holes (608).

10. A hydraulic oil tank with high cleaning performance according to claim 9, characterized in that: Both the upper heat conducting seat (601) and the lower heat conducting seat (602) are made of high thermal conductivity brass. A plurality of heat conducting fins are integrally formed at the bottom of the upper heat conducting seat (601), and a plurality of slots are opened at the top of the lower heat conducting seat (602) corresponding to the positions of the heat conducting fins of the upper heat conducting seat (601).

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