Oil leakage anti-pollution structure applied to new energy automobile die-casting die oil cylinder

Abstract

The invention relates to the technical field of oil cylinder oil liquid recovery, in particular to an oil cylinder oil leakage anti-pollution structure applied to a new energy automobile die-casting die, and the oil cylinder oil leakage anti-pollution structure comprises an oil cylinder and a base, a collecting tank is arranged on the base, and a filter screen is arranged at the top of the collecting tank; a filter screen is arranged at the top of the collecting tank, an oil receiving disc is arranged below the filter screen, the bearing face of the oil receiving disc is obliquely arranged, an oil return channel is formed in the side wall of the collecting tank, and a cleaning assembly is arranged on the filter screen. Blockage of an oil return channel during oil liquid recovery is avoided; the oil receiving disc rotates automatically through the inclined bearing face and the gravity of oil liquid, an extra power device is not needed, oil liquid collection and filter screen cleaning can be automatically completed in the long-term working process of the oil cylinder, and the manual maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of oil cylinder oil recovery, and in particular to an oil leakage anti-pollution structure for an oil cylinder of a die-casting mold for new energy vehicles. Background Art

[0002] In the efficient production of die-casting molds for new energy vehicles, the hydraulic cylinder, a core component that drives the mold open and close, has a critical impact on both workpiece molding precision and the cleanliness of the production environment. However, under long-term, high-pressure conditions, wear on the cylinder seals is inevitable, leading to hydraulic oil leakage into the mold base. If this leaking oil is not promptly collected and treated, it not only contaminates the mold surface and die-cast parts, causing subsequent demolding difficulties and part defects, but also increases production line cleaning costs and can even cause equipment failure due to oil accumulation.

[0003] Traditional oil leakage collection devices mostly adopt a simple structure of a base flow channel combined with an open collection tank. Although they can achieve initial oil diversion through gravity, they have significant technical defects: mold dust and other impurities carried by the leaking oil easily form sticky sludge on the filter surface, and the existing devices lack a reliable automatic cleaning mechanism, which leads to filter pore blockage and reduced filtration efficiency, ultimately forcing the production line to be frequently shut down for manual disassembly and cleaning, seriously affecting production continuity.

[0004] Chinese patent CN210660845U discloses a hydraulic cylinder oil leakage recovery device for a roller press hydraulic system. The device introduces the leaked oil from the rod cavity of the hydraulic cylinder into the oil collection tank through the return oil pipeline and pumps it back to the hydraulic station, which solves the back pressure and oil leakage pollution problems of the hydraulic system to a certain extent. However, this patent mainly focuses on the internal oil leakage recovery of the single-acting hydraulic cylinder of the roller press. It adopts an active diversion design of "pipeline + pump body" and does not involve the cleaning treatment of the oil stains on the filter and the automatic reset mechanism of the collection component. It is difficult to directly apply it to the complex working conditions of the die-casting mold of new energy vehicles. The oil leakage of the die-casting mold needs to take into account the dust interception of the external environment, the self-cleaning of the filter, and the efficient collection of the non-powered drive. However, the traditional solution is power-dependent and lacks cleaning, which cannot meet the high reliability and low maintenance cost requirements of the die-casting production line. Summary of the Invention

[0005] To address the above-mentioned problems, an anti-pollution structure for oil leakage in the cylinder of a die-casting mold for new energy vehicles is provided. By arranging a filter on the top of the collection tank, it is possible to effectively prevent the dust in the air from combining to form sludge during the oil collection process, and to avoid blockage of the oil return channel during oil recovery. The oil receiving pan utilizes the inclined receiving surface and the gravity of the oil to achieve self-rotation without the need for an additional power device. It can automatically complete oil collection and filter cleaning during the long-term operation of the cylinder, thereby reducing manual maintenance costs.

[0006] In order to solve the problems of the prior art, the present invention provides an anti-pollution structure for oil leakage in the oil cylinder of a die-casting mold for new energy vehicles, comprising an oil cylinder and a base arranged below the oil cylinder and fixedly connected thereto, wherein the base is provided with a flow channel for surrounding the circumference of the oil cylinder; a collecting trough connected to the flow channel is provided on one end of the base, a filter screen is provided on the top of the collecting trough for blocking dust, and the flow channel is used to collect oil leaking from the oil cylinder and introduce it into the collecting trough; a rotatable oil receiving pan is provided below the filter screen, and the receiving surface of the oil receiving pan is inclined so that it can rotate due to gravity imbalance after receiving the oil in the collecting trough; an oil return channel is provided on the side wall of the collecting trough corresponding to the rotating side of the oil receiving pan, and the oil receiving pan introduces the collected oil into the oil return channel after rotation; a cleaning component is provided on the filter screen for reciprocating along its length direction, and the cleaning component is transmission-connected to the oil receiving pan.

[0007] Preferably, the cleaning assembly includes a sliding frame, a screw rod and a guide rod arranged at the top of the collection tank. The screw rod and the guide rod are respectively arranged on both sides of the top of the collection tank along the length direction of the filter. The sliding frame is sleeved on the screw rod and the guide rod. A scraper is provided on the sliding frame, and the sliding frame is threadedly engaged with the screw rod. The sliding frame is slidably engaged with the guide rod, and the screw rod is transmission-connected to the oil receiving pan.

[0008] Preferably, the scraper is rotatably arranged on the sliding frame, and an adjustment component for driving the scraper to rotate is provided on the base, so that the scraper contacts the filter only when it moves in one direction during the reciprocating movement.

[0009] Preferably, the adjustment assembly includes an annular slide rail arranged on the outer side wall of the base, and a control rod that slides with the slide rail is provided at the end of the scraper; the slide rail includes a first section for driving the control rod to maintain a vertical state and a second section for driving the control rod to tilt; a limit plate is provided on the sliding frame next to the scraper for limiting its rotation, and a guide member is provided on the base between the first section and the second section for driving the control rod to transition from the first section to the second section.

[0010] Preferably, the guide member is a trapezoidal structure, the guide member can slide in a vertical direction, and the guide member is elastically connected to the base.

[0011] Preferably, an elastic member for driving the oil receiving pan to reset is provided on a side of the collecting tank away from the oil return channel.

[0012] Preferably, a first gear is provided at one end of the oil receiving pan, a second gear is provided next to the first gear and meshed with the first gear, and a synchronous belt is provided between the end of the screw rod and the second gear.

[0013] Preferably, the filter screen is provided with a diversion inclined surface converging toward the middle thereof.

[0014] Preferably, a conical guide groove is provided on one side of the oil return channel close to the oil receiving pan, and an oil guide pipe is provided on the other side of the oil return channel.

[0015] Preferably, an inspection port is provided at the bottom of the collecting tank, and a mounting plate is provided on the inspection port.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a filter screen on the top of the collection tank, which can effectively avoid the problem of dust in the air combining to produce oil sludge during the oil collection process, and avoid clogging of the oil return channel during oil recovery. At the same time, the cleaning component provided on the filter screen can be driven to move back and forth when the oil receiving pan rotates, so as to timely remove the oil sludge accumulated on the filter screen, avoid clogging of the filter screen, ensure the oil filtration effect, and improve the cleanliness of the recovered oil; the oil receiving pan uses the inclined supporting surface and the gravity of the oil to realize self-rotation, without the need for an additional power device, and forms a linkage through the transmission connection with the cleaning component, with a simple structure and low energy consumption, and can automatically complete oil collection and filter cleaning during the long-term operation of the oil cylinder, thereby reducing labor maintenance costs.

[0018] 2. This invention utilizes a screw and guide rod to convert the rotation of the oil pan into linear motion of the sliding frame, enabling the scraper to reciprocate and clean the filter screen, effectively removing sludge from the filter screen, preventing clogging caused by sludge accumulation, and ensuring continued good filtration performance. The adjustment assembly is connected to the scraper, driving it to swing around its pivot point. As the sliding frame reciprocates along the length of the filter screen, the scraper only contacts the filter screen during unidirectional movement, preventing the re-dispersion of accumulated sludge and dust caused by bidirectional scraping during reciprocating movement, thereby improving the directionality and thoroughness of the filter cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of the oil leakage prevention structure of the cylinder of the die-casting mold used in new energy vehicles Figure 1 .

[0020] Figure 2 This is a three-dimensional schematic diagram of the oil leakage prevention structure of the cylinder of the die-casting mold used in new energy vehicles Figure 2 .

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the oil leakage prevention structure of the oil cylinder of the die-casting mold used in new energy vehicles Figure 1 .

[0022] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the base used in the oil leakage prevention structure of the cylinder of the die-casting mold of new energy vehicles.

[0024] Figure 6This is a three-dimensional schematic diagram of the oil leakage prevention structure of the cylinder of the die-casting mold used in new energy vehicles Figure 3 .

[0025] Figure 7 yes Figure 6 Enlarged view of point C in the middle.

[0026] Figure 8 This is a side view of the oil leakage prevention structure used in the cylinder of the die-casting mold of new energy vehicles.

[0027] Figure 9 yes Figure 8 Enlarged view of point D in the middle

[0028] Figure 10 yes Figure 1 Enlarged view of point A in the middle.

[0029] Figure 11 This is a schematic diagram of the cross-sectional structure of the oil leakage prevention structure of the oil cylinder of the die-casting mold used in new energy vehicles Figure 2 .

[0030] Figure 12 This is a three-dimensional structural diagram of the base and cylinder used in the oil leakage and pollution prevention structure of the cylinder of the die-casting mold for new energy vehicles.

[0031] The numbers in the figure are:

[0032] 1. Cylinder; 2. Base; 21. Flow channel; 22. Collecting tank; 221. Filter; 222. Oil collecting pan; 2221. Elastic member; 2222. First gear; 2223. Second gear; 2224. Synchronous belt; 223. Oil return channel; 2231. Guide trough; 2232. Oil guide pipe; 224. Inspection port; 2241. Mounting plate; 23. Cleaning assembly; 231. Sliding frame; 2311. Scraper; 2312. Control lever; 2313. Limiting plate; 232. Screw rod; 233. Guide rod; 24. Adjustment assembly; 241. Slide rail; 2411. First section; 2412. Second section; 242. Guide member. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 8As shown: an oil seepage prevention and pollution prevention structure for the oil cylinder 1 of a die-casting mold for new energy vehicles, comprising an oil cylinder 1 and a base 2 arranged below the oil cylinder 1 and fixedly connected thereto, the base 2 being provided with a flow channel 21 for surrounding the circumference of the oil cylinder 1; a collecting tank 22 communicating with the flow channel 21 is provided on one end of the base 2, a filter screen 221 for blocking dust is provided on the top of the collecting tank 22, the flow channel 21 is used to collect oil seeping from the oil cylinder 1 and introduce it into the collecting tank 22; a rotatable oil receiving pan 222 is provided below the filter screen 221, the receiving surface of the oil receiving pan 222 is inclined so that it rotates due to gravity imbalance after receiving the oil in the collecting tank 22; an oil return channel 223 is provided on the side wall of the collecting tank 22 corresponding to the rotating side of the oil receiving pan 222, and the oil receiving pan 222 introduces the collected oil into the oil return channel 223 after rotation; a cleaning component 23 is provided on the filter screen 221 for reciprocating along its length direction, and the cleaning component 23 is transmission-connected to the oil receiving pan 222.

[0035] When oil leaks out of the oil cylinder 1 during operation, the oil is first received by the flow channel 21 on the base 2 surrounding the side of the oil cylinder 1. The flow channel 21 collects the oil and introduces it into the collection tank 22 connected thereto; the filter screen 221 at the top of the collection tank 22 blocks the dust mixed in the oil collection process to prevent the dust from combining with the oil to form sludge, and the oil receiving pan 222 below the filter screen 221 receives the oil passing through the filter screen 221. Since the receiving surface of the oil receiving pan 222 is inclined, as the amount of oil received increases, the oil receiving pan 222 rotates due to gravity imbalance, and the oil is introduced into the return oil channel 223 set on the corresponding rotating side of the side wall of the collection tank 22 to realize oil recovery; during the rotation of the oil receiving pan 222, the cleaning component 23 on the filter screen 221 is driven to move back and forth along the length direction of the filter screen 221 by the action of the transmission connection, and the cleaning component 23 scrapes off the sludge accumulated on the filter screen 221 to ensure that the filter screen 221 continues to maintain the effect of blocking dust.

[0036] By arranging the filter screen 221 on the top of the collecting tank 22, the problem of dust in the air combining to produce sludge can be effectively avoided during the oil collection process, and the blockage of the oil return channel 223 during oil recovery can be avoided. At the same time, the cleaning component 23 arranged on the filter screen 221 can be driven to move back and forth when the oil receiving pan 222 rotates, and the sludge accumulated on the filter screen 221 can be removed in time to avoid the blockage of the filter screen 221, thereby ensuring the oil filtering effect and improving the cleanliness of the recovered oil; the oil receiving pan 222 uses the inclined receiving surface and the gravity of the oil to realize self-rotation without the need for additional movement The force device is linked by a transmission connection with the cleaning component 23, has a simple structure and low energy consumption, can automatically complete oil collection and filter 221 cleaning during the long-term operation of the cylinder 1, and reduces manual maintenance costs; the flow channel 21 is arranged around the side of the cylinder 1 and is connected to the collection tank 22, and the overall structure is integrated in the base 2, which can be adapted to the existing layout of the cylinder 1, is easy to install and use, and effectively solves the problems of sludge pollution and inconvenience in recycling in the traditional oil leakage collection process, and improves the efficiency and reliability of oil leakage treatment of the cylinder 1 of the die-casting mold of new energy vehicles.

[0037] like Figures 3 to 11 As shown: the cleaning assembly 23 includes a sliding frame 231, a screw rod 232 and a guide rod 233 arranged at the top of the collecting tank 22. The screw rod 232 and the guide rod 233 are respectively arranged on both sides of the top of the collecting tank 22 along the length direction of the filter 221. The sliding frame 231 is sleeved on the screw rod 232 and the guide rod 233. A scraper 2311 is provided on the sliding frame 231, and the sliding frame 231 is threadedly engaged with the screw rod 232. The sliding frame 231 is slidably engaged with the guide rod 233, and the screw rod 232 is transmission-connected to the oil receiving pan 222.

[0038] When the oil receiving pan 222 rotates due to gravity imbalance after receiving the oil in the collecting tank 22, the rotation of the oil receiving pan 222 will drive the rotation of the screw rod 232 connected to it; since the sliding frame 231 is threadedly engaged with the screw rod 232, and the sliding frame 231 is sleeved on the guide rod 233 arranged parallel to the screw rod 232 and slidably engaged with the guide rod 233, the rotation of the screw rod 232 will drive the sliding frame 231 to move linearly along the guide rod 233, so that the scraper 2311 on the sliding frame 231 moves back and forth along the length direction of the filter screen 221, scraping off the oil sludge accumulated on the filter screen 221.

[0039] Through the cooperation of the screw rod 232 and the guide rod 233, the rotation of the oil receiving pan 222 is converted into the linear motion of the sliding frame 231, so that the scraper 2311 can clean the filter screen 221 reciprocatingly, effectively removing the sludge on the filter screen 221, avoiding the clogging of the filter screen 221 caused by the accumulation of sludge, and ensuring that the filter screen 221 can maintain a good filtering effect; the screw rod 232 transmission has high precision and stability, which can enable the scraper 2311 to accurately cover the length direction of the filter screen 221, improving the cleaning effect while reducing the cleaning blind area; the entire cleaning process It is automatically driven by the rotation of the oil receiving pan 222, without the need for an additional power device, with a simple and compact structure, reducing energy consumption and equipment complexity, and improving system reliability and maintenance convenience; the threaded cooperation between the sliding frame 231 and the screw rod 232 and the sliding cooperation with the guide rod 233 enable the cleaning component 23 to achieve continuous reciprocating cleaning under the periodic rotation of the oil receiving pan 222, effectively extending the service life of the filter 221, reducing manual intervention, and improving the automation level and efficiency of oil leakage treatment of the oil cylinder 1 of the die-casting mold of new energy vehicles.

[0040] In addition to the drive of the screw rod 232, a connecting rod drive or a gear rack drive can also be used. In the connecting rod drive, when the oil receiving pan 222 rotates, the connecting rod is driven by the eccentric wheel or the crank, so that the sliding frame 231 moves back and forth along the guide rod 233, driving the scraper 2311 to clean the filter screen 221; in the gear rack drive, the gear on the rotating shaft of the oil receiving pan 222 engages with the fixed rack, driving the sliding frame 231 and the scraper 2311 to reciprocate along the length direction of the filter screen 221.

[0041] The scraper 2311 is made of an elastic material so that it can better contact the dust on the filter 221 and better clean the dust.

[0042] like Figures 3 to 11 As shown: the scraper 2311 is rotatably arranged on the sliding frame 231, and the base 2 is provided with an adjustment component 24 for driving the scraper 2311 to rotate, so that the scraper 2311 contacts the filter 221 only when moving in one direction during the reciprocating movement.

[0043] The adjustment assembly 24 on the base 2 is in transmission connection with the scraper 2311, driving the scraper 2311 to swing about its pivot point. As the sliding frame 231 reciprocates along the length of the filter 221, the scraper 2311 only contacts the filter 221 during unidirectional movement. This prevents the re-dispersion of accumulated sludge and dust caused by bidirectional scraping during reciprocating movement, thereby improving the directionality and thoroughness of the cleaning of the filter 221. Furthermore, since the scraper 2311 only contacts the filter 221 during unidirectional movement, it reduces wear caused by unnecessary contact, extending the service life of the scraper 2311 and the filter 221. This also simplifies the motion control logic of the cleaning assembly 23, ensuring the stability and reliability of the entire system during long-term operation and reducing maintenance costs.

[0044] like Figures 3 to 11 As shown in the figure: the adjustment assembly 24 includes an annular slide rail 241 arranged on the outer wall of the base 2, and a control rod 2312 that slides with the slide rail 241 is provided at the end of the scraper 2311; the slide rail 241 includes a first section 2411 for driving the control rod 2312 to maintain a vertical state and a second section 2412 for driving the control rod 2312 to tilt; a limit plate 2313 is provided on the sliding frame 231 next to the scraper 2311 for limiting its rotation, and a guide member 242 is provided on the base 2 between the first section 2411 and the second section 2412 for driving the control rod 2312 to transition from the first section 2411 to the second section 2412.

[0045] When the sliding frame 231 drives the scraper 2311 to move, the control rod 2312 at the end of the scraper 2311 slides back along the annular slide rail 241 on the outer wall of the base 2. In the initial state, the bottom of the control rod 2312 is within the first section 2411 of the slide rail 241. At this time, the control rod 2312 is in a vertical position. The scraper 2311 is restricted by the limit plate 2313 and maintains contact with the filter 221, allowing the scraper 2311 to clean the filter 221 and ensuring the cleaning effect. When the control rod 2312 moves to the guide member 242, the guide member 242 guides the control rod 2312 from the first section 2411 to the second section 2412. At this time, the control rod 2312 is in an inclined state, thereby separating the scraper 2311 from the filter 221. After the return journey is completed, due to the annular slide rail 241, the control rod 2312 will slide back into the first section 2411, thereby achieving that the scraper 2311 only contacts the filter screen 221 in one direction, and collects dust in a single direction.

[0046] Scraper 2311 only contacts filter 221 during unidirectional movement, preventing secondary dust dispersion caused by reverse scraping. This improves cleaning efficiency and ensures that sludge and dust on filter 221 are concentrated in a fixed direction, facilitating subsequent centralized processing and reducing the burden of manual cleaning. The sliding fit between annular rail 241 and control rod 2312, along with the transitional arrangement of guide member 242, ensures smooth rotation and movement of scraper 2311, reducing mechanical shock and friction, extending the service life of components such as scraper 2311 and rail 241, and reducing system maintenance costs.

[0047] like Figures 8 to 11 As shown, the guide member 242 is a trapezoidal structure, the guide member 242 can slide in the vertical direction, and the guide member 242 is elastically connected to the base 2.

[0048] When the sliding frame 231 drives the scraper 2311 to move, the control rod 2312 will slide along the first section 2411 of the slide rail 241 in the initial state. When the control rod 2312 contacts the guide member 242, the scraper 2311 will not rotate due to the setting of the limit plate 2313, so that the scraper 2311 can clean the dust on the filter screen 221. At this time, the control rod 2312 will remain in a vertical state. Since the guide member 242 is elastically connected to the base 2, the guide member 242 will slide in the vertical direction to avoid the control rod 2312. The downward movement of the guide member 242 will compress the elastic potential energy, and when the control rod 2 After 312 separates from the guide member 242, the guide member 242 will reset. When the sliding joint returns, the control rod 2312 will contact the guide member 242 again. At this time, since the scraper 2311 is not restricted by the limit plate 2313, the control rod 2312 can rotate and cannot push the guide member 242 to move downward. Instead, it slides along the trapezoidal hypotenuse of the guide member 242, so that the control rod 2312 can smoothly slide from the first section 2411 of the slide rail 241 into the second section 2412 of the slide rail 241, thereby driving the scraper 2311 to tilt through the control rod 2312 and separate from the surface of the filter screen 221 to achieve one-way cleaning.

[0049] Through the cooperation of the limit plate 2313 and the guide member 242, the scraper 2311 is forced to contact the filter 221 only when it moves in one direction, avoiding the re-dispersion of the accumulated dust during the return journey, ensuring that the sludge and dust are efficiently collected in a single direction, and improving the thoroughness and directionality of the cleaning of the filter 221; the elastic sliding mechanism of the guide member 242 enables the control rod 2312 to automatically switch the first section 2411 and the second section 2412 of the slide rail 241 during the reciprocating motion, without the need for an additional drive device, and only relying on the mechanical structure to complete the angle adjustment of the scraper 2311, thereby simplifying the system complexity and reducing energy consumption. The scraper 2311 is separated from the surface of the filter 221 during the return stroke, which reduces unnecessary friction, effectively extends the service life of the scraper 2311 and the filter 221, and reduces the maintenance frequency. The bevel of the trapezoidal guide 242 provides a smooth transition path for the control rod 2312, and combined with the elastic reset function, ensures the stability of the reciprocating motion of the sliding frame 231 and avoids jamming. This structure can be directly integrated into the outside of the base 2, adapts to the layout of the existing die-casting mold for new energy vehicles, facilitates engineering applications and equipment upgrades, and enhances the reliability and practicality of the system while improving the efficiency of oil seepage treatment.

[0050] In order to reduce the friction when the control rod 2312 contacts the guide member 242 and extend the service life of the control rod 2312, a roller may be provided at the end of the control rod 2312.

[0051] like Figure 3 and Figure 4As shown, an elastic member 2221 for driving the oil receiving pan 222 to return to its original position is provided on one side of the collecting tank 22 away from the oil return channel 223 .

[0052] By disposing an elastic member 2221 on a side of the collecting tank 22 away from the oil return channel 223, the oil receiving pan 222 initially maintains the initial angle of the inclined receiving surface under the pulling or pushing force of the elastic member 2221. When the oil receiving pan 222 receives oil until gravity becomes unbalanced, it overcomes the resistance of the elastic member 2221 and rotates toward the oil return channel 223, allowing the oil to flow along the inclined surface into the oil return channel 223. After the oil is discharged, the elastic member 2221 releases the stored elastic potential energy, pulling or pushing the oil receiving pan 222 in the opposite direction, causing it to return to its initial oil receiving position and wait for the next oil receiving.

[0053] The elastic member 2221 provides a reset driving force to ensure that the oil collecting pan 222 automatically returns to its initial state after the oil is discharged, forming a circulating working mechanism without the need for manual intervention or additional power devices, thereby improving the degree of automation of oil leakage collection; the buffering effect of the elastic member 2221 makes the rotation process of the oil collecting pan 222 smooth, avoiding violent shaking or impact caused by sudden changes in gravity, reducing mechanical loss, and extending the service life of the oil collecting pan 222 and related components; the elastic member 2221 is arranged on the side of the collection tank 22 away from the return oil channel 223, forming a two-way force balance with the gravity drive of the oil collecting pan 222, accurately controlling the rotation threshold of the oil collecting pan 222, ensuring that the oil is discharged in time, and avoiding frequent rotation caused by trace oil leakage, thereby optimizing the stability and reliability of the system operation; the overall structure is simple and compact, and the low cost and easy replacement characteristics of the elastic member 2221 reduce the difficulty of maintenance, adapting to the long-term high-load working environment of the die-casting mold of new energy vehicles, and ensuring the continuous and efficient operation of the oil leakage treatment system.

[0054] It should be noted that the area of ​​the oil receiving pan 222 is much larger than the oil leakage area of ​​the filter screen 221, thereby ensuring that the oil receiving pan 222 can also recover the oil during the rotation process without causing oil leakage.

[0055] like Figures 3 to 7 As shown, a first gear 2222 is provided at one end of the oil receiving pan 222 , a second gear 2223 meshingly connected to the first gear 2222 is provided next to the first gear 2222 , and a synchronous belt 2224 is provided between the end of the screw rod 232 and the second gear 2223 .

[0056] After receiving the oil, the oil pan 222 rotates due to gravity imbalance, causing the first gear 2222 at its end to rotate synchronously, driving the second gear 2223 next to it through meshing. The second gear 2223 is connected to the end of the screw rod 232 via a timing belt 2224, which in turn drives the screw rod 232 to rotate, causing the sliding frame 231, which is threadedly engaged with the screw rod 232, to reciprocate along the guide rod 233, ultimately driving the scraper 2311 to clean the filter 221. When the oil is drained, the oil pan 222 is reset by the elastic member 2221, causing the first gear 2222 to rotate in the opposite direction. This, in turn, drives the screw rod 232 in the opposite direction via the second gear 2223 and timing belt 2224, causing the sliding frame 231 and scraper 2311 to return, completing a cleaning cycle.

[0057] The combination of the meshing of the first gear 2222 and the second gear 2223 and the transmission of the synchronous belt 2224 has both high transmission accuracy and stability. The rigid meshing of the gears ensures that there is no idling loss of power. The meshing of the first gear 2222 and the second gear 2223 can adjust the transmission ratio according to actual needs, adapt to the matching requirements of different rotation amplitudes of the oil receiving pan 222 and the moving speed of the scraper 2311, enhance the flexibility of the system, facilitate assembly and subsequent maintenance, and reduce the difficulty and cost of modifying the die-casting mold for new energy vehicles.

[0058] like Figures 1 to 7 As shown, the filter screen 221 is provided with an inclined diversion surface converging toward the center thereof.

[0059] By constructing the filter 221 as a converging inclined diversion surface toward the center, gravity is utilized to guide the oil to flow rapidly toward the center of the filter 221, reducing the area and time of oil retention on the surface of the filter 221, avoiding oil accumulation and dust adhesion at the edges due to oil diffusion, and reducing the probability of sludge formation at the edge of the filter 221 from the source. The converging effect of the diversion inclined surface causes the oil to drip into the center area of ​​the oil receiving pan 222, effectively cooperating with the inclined receiving surface of the oil receiving pan 222, ensuring that the weight of the oil is evenly distributed, triggering the rotation of the oil receiving pan 222, and improving oil guiding efficiency and stability. The diversion inclined surface structure of the filter 221 does not require additional power or complex components, and only achieves oil guidance through geometric design, which simplifies the internal structure of the collection tank 22, reduces manufacturing and maintenance costs, and enhances the smoothness of the oil leakage collection process, so that the entire system maintains a stable oil diversion capability during long-term operation of the die-casting mold, effectively reduces oil residue on the surface of the filter 221, and provides a cleaner working foundation for the subsequent cleaning component 23.

[0060] like Figures 1 to 5 As shown, a conical guide groove 2231 is provided on one side of the oil return channel 223 close to the oil receiving pan 222 , and an oil guide pipe 2232 is provided on the other side of the oil return channel 223 .

[0061] A conical guide groove 2231 is provided on one side of the return oil channel 223 close to the oil receiving pan 222. When the oil receiving pan 222 rotates and tilts, the collected oil flows along its inclined surface to the conical guide groove 2231; the flared design of the conical guide groove 2231 guides the oil to be concentrated into the return oil channel 223, and is then led out of the collection tank 22 through the oil guide pipe 2232 on the other side to complete the oil recovery.

[0062] The flared shape of the conical guide groove 2231 matches the inclined oil guide direction of the oil receiving pan 222, which expands the oil receiving range, reduces splashing and residue during the pouring process, and ensures that the oil in the oil receiving pan 222 flows into the return oil channel 223 efficiently and without omission, thereby improving the oil recovery efficiency; the conical inner wall of the guide groove 2231 guides the oil to converge quickly, avoiding the formation of stagnation or vortex at the interface, reducing the risk of sludge adhesion and blockage, and ensuring the long-term smooth flow of the return oil channel 223; the connection structure between the oil guide pipe 2232 and the return oil channel 223 is compact, and the guide direction can be flexibly adjusted according to the mold layout to adapt to the oil circuit recovery needs of different die-casting molds, while reducing the impact of external pollution on the oil guide process, ensuring the cleanliness of the recovered oil.

[0063] The oil return channel 223 can also be provided with a platform for limiting the docking of the oil pan 222. The platform limits excessive rotation of the oil receiving pan 222 to ensure the accurate pouring direction of the oil. At the same time, the bottom of the platform is inclined. The inclined platform bottom guides the residual oil in the oil receiving pan 222 to flow into the oil return channel 223 along the inclined surface to avoid stagnation. It is easy to maintain and adapts to the working conditions of high-frequency oil guidance of the die-casting mold to ensure the continuous and stable operation of the oil seepage treatment system.

[0064] like Figures 1 to 4 and Figure 12 As shown, an inspection port 224 is provided at the bottom of the collecting tank 22 , and a mounting plate 2241 is provided on the inspection port 224 .

[0065] An inspection port 224 is provided at the bottom of the collection tank 22, and a mounting plate 2241 is covered on the inspection port 224. The mounting plate 2241 is fixedly connected to the collection tank 22 by means of bolts or snaps. When it is necessary to maintain the interior of the collection tank 22 (such as cleaning the sludge deposited under the filter 221, checking the blockage of the rotating parts of the oil receiving pan 222 or the oil return channel 223), the mounting plate 2241 can be removed to directly access the bottom of the collection tank 22, allowing for convenient inspection, cleaning or component replacement. After maintenance is completed, the mounting plate 2241 is reinstalled to close the inspection port 224 and ensure the sealing of the collection tank 22. This improves the reliability and maintainability of the entire oil seepage treatment structure, adapting to the high-frequency and long-term operation of new energy vehicle die-casting molds in industrial scenarios.

[0066] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. The oil leakage prevention structure of the oil cylinder of the die-casting mold for new energy vehicles includes an oil cylinder and a base arranged below the oil cylinder and fixedly connected to the oil cylinder, characterized in that: The base is provided with a flow channel for surrounding the circumference of the oil cylinder; A collection tank connected to the flow channel is provided on one end of the base. A filter screen for blocking dust is provided on the top of the collection tank. The flow channel is used to collect oil leaking from the oil cylinder and guide it into the collection tank. A rotatable oil receiving pan is provided below the filter screen. The receiving surface of the oil receiving pan is inclined so that it can rotate due to gravity imbalance after receiving the oil in the collecting tank. An oil return channel is provided on the side wall of the collecting tank corresponding to the rotating side of the oil receiving pan, and the oil receiving pan guides the collected oil into the oil return channel after rotation; The filter screen is provided with a cleaning component which moves back and forth along the length direction of the filter screen, and the cleaning component is transmission-connected with the oil receiving pan.

2. The oil seepage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 1 is characterized in that: The cleaning assembly includes a sliding frame, a screw rod and a guide rod arranged at the top of the collection tank. The screw rod and the guide rod are respectively arranged on both sides of the top of the collection tank along the length direction of the filter screen. The sliding frame is sleeved on the screw rod and the guide rod. A scraper is provided on the sliding frame, and the sliding frame is threadedly matched with the screw rod. The sliding frame is slidably matched with the guide rod, and the screw rod is transmission-connected to the oil receiving pan.

3. The oil seepage anti-pollution structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 2 is characterized in that: The scraper is rotatably arranged on the sliding frame, and an adjustment component for driving the scraper to rotate is arranged on the base, so that the scraper contacts the filter screen only when it moves in one direction during the reciprocating movement.

4. The oil seepage prevention structure for the oil cylinder of a die-casting mold for new energy vehicles according to claim 3 is characterized in that: The adjustment assembly includes an annular slide rail arranged on the outer side wall of the base, and a control rod that slides with the slide rail is provided at the end of the scraper; the slide rail includes a first section for driving the control rod to maintain a vertical state and a second section for driving the control rod to tilt; a limit plate is provided on the sliding frame next to the scraper for limiting its rotation, and a guide member is provided on the base between the first section and the second section for driving the control rod to transition from the first section to the second section.

5. The oil leakage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 4 is characterized in that: The guide member is a trapezoidal structure, can slide in a vertical direction, and is elastically connected to the base.

6. The oil leakage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 1 is characterized in that: An elastic member for driving the oil receiving pan to reset is provided on one side of the collecting tank away from the oil return channel.

7. The oil leakage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 1 is characterized in that: A first gear is provided at one end of the oil receiving pan, a second gear meshingly connected to the first gear is provided beside the first gear, and a synchronous belt is provided between the end of the screw rod and the second gear.

8. The oil leakage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 2 is characterized in that: The filter screen is provided with a diversion inclined surface converging toward the middle thereof.

9. The oil leakage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 1 is characterized in that: A conical guide groove is provided on one side of the oil return channel close to the oil receiving pan, and an oil guide pipe is provided on the other side of the oil return channel.

10. The oil leakage prevention structure for the oil cylinder of the die-casting mold for new energy vehicles according to claim 1 is characterized in that: An inspection port is provided at the bottom of the collecting tank, and a mounting plate is provided on the inspection port.

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