Protective cover for a forging press

Abstract

The application relates to a protective cover for a forging press, belonging to the forging press field, which comprises a protective cover body and an oil return device. The protective cover body is arranged between a sliding block and a top plate of the forging press, and a cover is arranged outside a screw rod to block splash of lubricating oil. The protective cover body comprises: cover bodies, at least two of which are arranged, and the cover bodies are connected in a sliding mode to realize elongation or shortening of the protective cover body with change of the distance between the sliding block and the top plate; a bottom connecting plate is fixed between the sliding block and the protective cover body, and an annular oil collecting groove is arranged on the bottom connecting plate; and the oil return device is used for recycling the lubricating oil in the annular oil collecting groove. The application has the effects of facilitating recycling of the splashed lubricating oil and reducing the probability of the external environment immersing in the lubricating oil.

Description

Technical Field

[0001] This application relates to the field of forging presses, and more particularly to a protective cover for a forging press. Background Technology

[0002] A forging press is a machine used to forge hot metals. It is widely used in precision forging, precision blanking of gears, motor processing, bearing processing and other industries. It is highly efficient and has good precision.

[0003] A forging screw press, with reference to Figure 1 , 2 A forging screw press includes a base 1 horizontally positioned on the ground and a top plate 11 horizontally positioned above the base 1. Two support plates 12 are connected between the base 1 and the top plate 11, and the support plates 12 are vertically positioned to stably support the top plate 11 above the base 1. A workpiece placement plate 13 is fixedly mounted on the top of the base 1 for placing the workpiece to be processed. A flywheel 111 is rotatably connected inside the top plate 11, and a drive motor 112 is fixedly mounted on the top of the top plate 11. The drive motor 112 is vertically positioned, and a drive gear 113 is fixedly connected to the output shaft of the drive motor 112. The drive gear 113 meshes with the side wall of the flywheel 111. A screw 14 is fixedly mounted in the middle of the flywheel 111. The screw 14 is vertically positioned, and a connecting nut 15 is threadedly fitted on the outer side of the screw 14 near the bottom. A connecting sleeve 16 is sleeved on the outside of the connecting nut 15, and the inner wall of the connecting sleeve 16 is fixedly connected to the outer wall of the connecting nut 15. A slider 17 is fixedly installed at one end of the connecting sleeve 16 near the workpiece placement plate 13. The slider 17 is horizontally set, and the two sides of the slider 17 are slidably connected to the inner side of the support plate 12.

[0004] When using the aforementioned forging screw press, the workpiece to be processed is first placed on top of the workpiece placement plate 13. The output shaft of the drive motor 112 rotates, driving the drive gear 113 to rotate, thereby providing power for the flywheel 111 to rotate. The flywheel 111 accelerates its rotation to store energy. Simultaneously, the rotation of the flywheel 111 drives the screw 14 to rotate, causing the connecting nut 15 to move downward relative to the screw 14, which in turn drives the slider 17 to move vertically downward. When the slider 17 contacts the workpiece, the flywheel 111 is forced to decelerate to a complete stop, and the stored rotational kinetic energy is converted into impact energy, which strikes the workpiece through the slider 17, deforming it. After the impact, the drive motor 112 drives the flywheel 111 to reverse, causing the slider 17 to rise and return to its original position. Because the screw 14 will be subjected to high temperature, high pressure, and heavy load working conditions during the forging process, in order to effectively reduce the friction and wear between the screw 14 and other components and improve the working efficiency and stability of the machine, the screw 14 is usually provided with concentrated oil lubrication to provide better lubrication effect.

[0005] Regarding the aforementioned technologies, the inventors believe that because the area between the top plate 11 and the slider 17 is an open environment, the lubricating oil at the screw 14 is thrown out and splashed onto the worktable during the high-speed rotation of the screw 14 during press operation. This causes pollution to the working environment and wastes lubricating oil. Furthermore, the forging workshop environment is filled with impurities such as graphite emulsion, scale, and dust. Since the screw 14 is exposed to the external environment during operation, these impurities will seep into the lubricating oil and flow with it to the screw 14's helical assembly, causing damage to the press's critical components, the screw 14 and nut. Summary of the Invention

[0006] In order to facilitate the recycling of splashed lubricating oil and reduce the probability of external contaminants entering the lubricating oil, this application provides a protective cover for a forging press.

[0007] The protective cover for a forging press provided in this application adopts the following technical solution: A protective cover for a forging press includes a cover body and an oil return device. The protective cover body is disposed between the slide block and the top plate of the forging press, covering the outside of the screw to block the splashing of lubricating oil. The protective cover body includes: The cover has at least two parts, which are connected by a sliding connection so that the protective cover body can be extended or shortened as the distance between the slider and the top plate changes; A bottom connecting plate is fixed between the slider and the protective cover body. An annular oil collection groove is provided on the bottom connecting plate. The annular oil collection groove is used to collect the lubricating oil thrown out from the screw. The oil return device, installed in the forging press, is used to recover and reuse the lubricating oil in the annular oil collection groove. The oil return device includes: An oil storage tank is used to store externally added lubricating oil and lubricating oil collected in an annular oil collection tank. The oil storage tank is equipped with a nozzle for spraying lubricating oil onto the screw. The delivery pipe assembly is located between the bottom connecting plate and the oil storage tank, providing a channel for transporting lubricating oil from the annular oil collection trough to the oil storage tank. The oil pump set is used to provide power for transporting lubricating oil from the annular oil collection tank to the oil storage tank.

[0008] By adopting the above technical solution, when the slider moves vertically downwards towards the workpiece placement plate, the covers move in opposite directions along their own length, allowing the protective cover body to extend as the distance between the slider and the top plate changes. On the one hand, this avoids the protective cover body interfering with the slider's movement; on the other hand, during the slider's vertical downward movement, the protective cover body is always positioned between the top plate and the slider, reducing the probability of external environment entering the lubricating oil and protecting the screw, while also controlling the outward-thrown lubricating oil inside the protective cover body, preventing lubricating oil from polluting the external environment.

[0009] In addition, the ejected lubricating oil impacts the inner wall of the casing and slides down along it, storing in an annular oil collection tank. Then, a pump unit transports the lubricating oil from the annular oil collection tank to an oil storage tank via a delivery pipe assembly, where it is stored. When lubricating oil needs to be replenished on the screw, it is sprayed onto the screw through a nozzle, thus achieving the recycling of the ejected lubricating oil from the screw.

[0010] In summary, the above technical solutions can facilitate the recycling of splashed lubricating oil and reduce the probability of external contaminants entering the lubricating oil.

[0011] Optionally, blocking components are fixedly provided on the inner wall of the cover near both ends, and a sliding channel is formed between the two blocking components on the same cover. The outer wall of the cover is fixed with a sliding member. When the covers slide relative to each other, the sliding member slides within the sliding channel.

[0012] By adopting the above technical solution, when the cover slides relative to each other, the sliding component slides within the sliding channel, thereby limiting the range of motion of the sliding component and preventing the cover from separating from each other during relative sliding.

[0013] Optionally, the horizontal cross-sectional diameters of the covers arranged sequentially from the top plate toward the slider increase sequentially; An oil leakage groove is provided in the middle of the blocking component located near the slider end on the cover.

[0014] By adopting the above technical solution, the lubricating oil thrown off the outer wall of the screw due to its high-speed rotation impacts the inner wall of the cover, slides down along the inner wall, and is stored in the annular oil collection tank after passing through the oil leakage groove. On the one hand, the design of the cover with its cross-sectional diameter increasing from top to bottom facilitates the lubricating oil to slide down the cover and fall directly into the oil collection tank without passing through the lower part of the cover, thereby reducing the waste caused by some lubricating oil adhering to the surface of the cover due to sliding on the cover surface; on the other hand, the design of the oil leakage groove facilitates the movement of lubricating oil that has accumulated on the surface of the blocking component towards the annular oil collection tank.

[0015] Optionally, the delivery pipe assembly includes: At least two oil storage pipes are provided. One end of each oil storage pipe is fixed to the same side of the bottom connecting plate and connected to the annular oil collection groove. The other end of the oil storage pipe extends horizontally towards the support plate and passes through the outside of the support plate. The end of the oil storage pipe that passes through the outside of the support plate is bent upward. The connecting pipe is horizontally fixed at the end of all oil storage pipes and is connected to the oil storage pipes; The insertion tube is horizontally set with openings at both ends. One end is connected to and communicates with the connecting pipe, while the other end extends away from the connecting pipe. The oil return device includes: Centrifugal mechanism, used to filter contaminants in lubricating oil; The oil inlet pipe is fixed and connected to the centrifugal mechanism at one end. When it is necessary to transport lubricating oil from the oil storage pipe to the centrifugal mechanism for filtration, the oil inlet pipe is inserted into the end of the insertion pipe and connected to the insertion pipe. When the slider moves vertically, the oil inlet pipe is disengaged from the insertion pipe. The oil outlet pipe is connected to the centrifugal mechanism at one end and to the oil storage tank at the other end. The oil pump assembly includes: One oil pump is installed on the centrifugal mechanism at the position corresponding to the oil inlet pipe, and is used to provide power for transporting lubricating oil from the oil storage pipe into the centrifugal mechanism. The second oil pump is located at the position of the oil outlet pipe on the oil storage tank, and is used to provide power for transporting lubricating oil from the centrifugal mechanism into the oil storage tank.

[0016] By adopting the above technical solution, the lubricating oil is filtered by a centrifugal mechanism before entering the oil storage tank. The centrifugal mechanism removes impurities in the lubricating oil before it is fed into the oil storage tank for recycling, thus making the recycled lubricating oil cleaner.

[0017] Additionally, when lubricating oil needs to be transported from the conduit to the centrifugal mechanism for filtration, the inlet pipe is connected to the end of the connector pipe, facilitating the transport of lubricating oil. When the slider moves vertically, the inlet pipe disengages from the connector pipe, preventing the centrifugal mechanism from interfering with the slider's movement. With the inlet pipe disengaged, the lubricating oil thrown from the screw enters the annular oil collection trough and the oil storage pipe for storage. The upward bend at the end of the oil storage pipe helps to block the lubricating oil temporarily stored in the storage pipe.

[0018] Optionally, a silicone ring is fixed to the inner wall of the opening end of the insertion tube away from the connecting tube; The oil inlet pipe has a tapered section at its end, and the tapered section is tapered in shape.

[0019] While the upward bending of the oil reservoir end can provide some obstruction to the lubricating oil within it, the high vertical movement speed of the slider during operation can still cause the lubricating oil to flow through the connecting pipe into the insertion pipe. Therefore, a silicone ring is installed on the insertion pipe wall to prevent a small amount of lubricating oil from entering the insertion pipe and thus avoid spillage. Furthermore, the tapered section facilitates the insertion of the oil inlet pipe into the insertion pipe end. When the tapered section is inserted, it compresses the silicone ring, resulting in a tighter connection between the tapered section and the insertion pipe. The silicone ring also provides a seal when the tapered section is inserted into the insertion pipe end, facilitating the transport of lubricating oil.

[0020] Optionally, the centrifugation mechanism includes: The outer casing is cylindrical with an opening at the bottom. An end cap is hinged to the bottom opening of the outer casing, and an electromagnet is fixed to the top side of the end cap. A rotating drum is rotatably connected inside the outer casing. The cross-sectional diameter of the rotating drum is smaller than that of the outer casing. An oil hole is provided on the outside of the rotating drum, and an opening is provided at the bottom of the rotating drum. The end of the oil inlet pipe passes through the top of the housing and extends into the rotating drum, while the end of the oil outlet pipe passes through the side wall of the housing near the bottom and communicates with the housing.

[0021] By adopting the above technical solution, lubricating oil enters the rotating drum along the oil inlet pipe. The rotation of the drum throws the lubricating oil out of the oil hole into the outer casing, and the clean lubricating oil enters the oil storage tank along the oil outlet pipe for storage. In addition, during filtration, the electromagnet attracts magnetic substances in the lubricating oil, further improving the filtration effect. After filtration, the end cover is opened to de-energize the electromagnet, making it easy to remove the magnetic substances adsorbed on the electromagnet and other solid substances from the centrifuge mechanism.

[0022] Optionally, the oil return device includes: Drive gear two is horizontally set, with a synchronous rotating shaft fixedly connected to the middle. The end of the synchronous rotating shaft away from drive gear two is fixedly connected to the middle of drive gear one. The connecting gear engages or disengages from one side wall of the drive gear, and a connecting shaft is fixedly connected in the middle, with the axis of the connecting shaft set vertically. The driven gear is horizontally positioned at the end of the connecting shaft; The drive gear ring is sleeved on the outside of the rotating drum, and its side wall meshes with the driven gear; A vertical sliding plate is horizontally arranged, and the vertical sliding plate is equipped with a vertical drive cylinder, which is used to drive the vertical sliding plate to move vertically. A horizontally driven cylinder, horizontally positioned, is used to drive the housing to slide horizontally along the vertical sliding plate.

[0023] By adopting the above technical solution, when the slider moves vertically, the connecting gear and the second driving gear mesh. In this state, the output shaft of the drive motor rotates, which drives the first driving gear to rotate, thereby driving the flywheel to rotate. At the same time, the second driving gear rotates synchronously with the first driving gear, which drives the connecting gear, the driven gear, and the driving gear ring to rotate, thereby realizing the rotation of the drum and filtering the lubricating oil.

[0024] When lubricating oil needs to be transported from the guide tube to the centrifugal mechanism for filtration, the slider is positioned near the top plate, and the piston rod of the vertical drive cylinder extends, driving the vertical sliding plate vertically downwards. The vertical sliding plate drives the centrifugal mechanism to move vertically downwards, disengaging the connecting gear from the drive gear and positioning the oil inlet pipe and the insertion pipe at the same height, facilitating subsequent insertion of the oil inlet pipe into the insertion pipe. Then, the piston rod of the horizontal drive cylinder extends, pushing the outer casing horizontally towards the insertion pipe, thereby inserting the oil inlet pipe into the insertion pipe, facilitating the transport of lubricating oil into the centrifugal mechanism.

[0025] Optionally, a cooling water pipe is coiled around the outside of the oil outlet pipe, and cooling water is installed inside the cooling water pipe. The cooling water flows inside the cooling water pipe, and both ends of the cooling water pipe are connected to a cooling device.

[0026] By adopting the above technical solution, cooling water flows in the cooling water pipe, thereby cooling the lubricating oil flowing through the oil outlet pipe, so as to improve the use effect of the lubricating oil after recovery. The used cooling water flows into the cooling device for cooling again, and then flows to the oil outlet pipe for cooling. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the "forging screw press" described in the background section of this application.

[0028] Figure 2 This is a cross-sectional view of "a forging screw press" described in the background section of this application.

[0029] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application.

[0030] Figure 4 This is a cross-sectional view taken in the embodiment to highlight the internal structure of the protective cover body.

[0031] Figure 5 This is a schematic diagram shown in the embodiment to highlight the oil return device.

[0032] Figure 6 This is a schematic diagram shown in the embodiment to highlight the specific structure of the delivery pipe assembly.

[0033] Figure 7This is a schematic diagram shown in the embodiment to highlight the positioning plate.

[0034] Figure 8 A cross-sectional view of the embodiment to highlight the rotating cylinder.

[0035] Explanation of reference numerals in the attached drawings: 1. Base; 11. Top plate; 111. Flywheel; 112. Drive motor; 113. Drive gear one; 12. Support plate; 121. Clearance groove; 13. Workpiece placement plate; 14. Screw; 15. Connecting nut; 16. Connecting sleeve; 17. Slider; 2. Protective cover body; 21. Cover body; 22. Blocking component; 221. Sliding channel; 222. Oil leakage groove; 23. Sliding component; 24. Top connecting ring; 25. Bottom connecting plate; 251. Bottom connecting ring; 252. Annular oil collection groove; 253. Guide ring; 254. Connecting groove; 3. Oil return device; 31. Conveying device Pipe assembly; 311, oil storage pipe; 312, connecting pipe; 313, insertion pipe; 32, oil pump assembly; 321, oil pump one; 322, oil pump two; 33, centrifugal mechanism; 331, outer casing; 332, end cap; 333, rotating drum; 334, oil hole; 335, oil inlet pipe; 336, oil outlet pipe; 34, oil storage tank; 35, positioning plate; 351, vertical drive cylinder; 352, vertical sliding plate; 353, horizontal drive cylinder; 36, drive gear ring; 361, driven gear; 362, connecting shaft; 363, connecting gear; 364, synchronous shaft; 365, drive gear two. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 3-8 This application will be described in further detail.

[0037] This application discloses a protective cover for a forging press. (Refer to...) Figure 3 A protective cover for a forging press includes a cover body 2 and an oil return device 3. The cover body 2 is disposed between the slide block 17 and the top plate 11 of the forging press, covering the outside of the screw 14 to prevent lubricating oil from splashing. The oil return device 3 is disposed on the side of the forging press and is used to recover and reuse the lubricating oil splashed from the screw 14.

[0038] Reference Figure 4The protective cover body 2 includes several cover bodies 21, which are slidably connected to each other so that the protective cover body 2 can extend or shorten as the distance between the slider 17 and the top plate 11 changes. The cover bodies 21 are cylindrical, and the horizontal cross-sectional diameter of the cover bodies 21 arranged sequentially from the top plate 11 towards the slider 17 increases sequentially. A blocking member 22 is fixedly provided near both ends of the inner wall of each cover body 21. The blocking member 22 is annular and coaxially arranged with the cover body 21, forming a sliding channel 221 between two blocking members 22 on the same cover body 21. A sliding member 23 is fixedly provided on the outer wall of the cover body 21. The sliding member 23 is annular and located near the bottom of the cover body 21. When the cover bodies 21 slide relative to each other, the sliding member 23 slides within the sliding channel 221, thereby limiting the range of motion of the sliding member 23 and preventing the cover bodies 21 from detaching from each other during relative sliding.

[0039] Reference Figure 4 An oil drain groove 222 is provided in the middle of the blocking member 22 near the slider 17 on the cover 21. The oil drain groove 222 is circumferential and evenly distributed along the blocking member 22. As the screw 14 rotates at high speed, the lubricating oil thrown off the outer wall of the screw 14 impacts the inner wall of the cover 21 and slides down along the inner wall of the cover 21. On the one hand, the design of the cover 21 with the cross-sectional diameter increasing from top to bottom makes it easy for the lubricating oil to slide down the cover 21 and fall directly downwards without passing through the lower part of the cover 21, thereby reducing the waste caused by some lubricating oil sticking to the surface of the cover 21 due to the lubricating oil sliding on the surface of the cover 21; on the other hand, the oil drain groove 222 facilitates the downward movement of the lubricating oil that has accumulated on the surface of the blocking member 22.

[0040] Reference Figure 4 The topmost cover 21 is fitted with a top connecting ring 24, and several bolts are threaded onto the top connecting ring 24. The ends of the bolts pass through the top connecting ring 24 and are threaded onto the bottom of the top plate 11, thereby fixing the top of the cover 21 to the bottom of the top plate 11.

[0041] Reference Figure 4 A bottom connecting plate 25 is fixed to the top of the slider 17, and the bottom connecting plate 25 is sleeved on the outside of the connecting sleeve 16. A bottom connecting ring 251 is sleeved at the bottom end of the bottom cover 21. Several bolts are threaded on the bottom connecting ring 251. The ends of the bolts pass through the bottom connecting ring 251 and are threaded to the bottom connecting plate 25, thereby fixing the bottom of the cover 21 to the bottom connecting plate 25.

[0042] When the slider 17 moves vertically downward toward the workpiece placement plate 13, the covers 21 move in opposite directions along their own length, allowing the protective cover body 2 to extend as the distance between the slider 17 and the top plate 11 changes. On the one hand, this avoids the protective cover body 2 interfering with the movement of the slider 17; on the other hand, during the vertical downward movement of the slider 17, the protective cover body 2 is always positioned between the top plate 11 and the slider 17, which reduces the probability of external environment entering the lubricating oil, thus protecting the screw 14, and also controls the outwardly thrown lubricating oil inside the protective cover body 2, preventing the lubricating oil from being thrown out and polluting the external environment.

[0043] Reference Figure 4 The bottom connecting plate 25 has an annular oil collecting groove 252 at its top, which collects the lubricating oil thrown off the screw 14. The annular oil collecting groove 252 is annular in shape. A guide ring 253 is fixed at the top of the bottom connecting plate 25 near the connecting sleeve 16. The guide ring 253 has a triangular cross-section to facilitate the movement of the lubricating oil. The thrown lubricating oil slides down the inner wall of the cover 21 after impacting it and is stored in the annular oil collecting groove 252.

[0044] Reference Figure 5 The oil return device 3 includes a conveying pipe assembly 31, an oil pump assembly 32, a centrifugal mechanism 33, and an oil storage tank 34. The lubricating oil stored in the annular oil collecting tank 252 first enters the centrifugal mechanism 33 through the conveying pipe assembly 31 for filtration, and then the clean lubricating oil is conveyed to the oil storage tank 34 through the conveying pipe assembly 31 for storage. During this process, the oil pump assembly 32 provides power for transporting the lubricating oil from the annular oil collecting tank 252 to the oil storage tank 34.

[0045] Reference Figure 4 , 6The conveying pipe assembly 31 includes several oil storage pipes 311. The figure shows three oil storage pipes as an example. One end of each oil storage pipe 311 is fixed to the same side of the bottom connecting pipe 312. A connecting groove 254 is provided on the side wall of the annular oil collecting trough 252 corresponding to the position of each oil storage pipe 311. The oil storage pipe 311 is connected to the annular oil collecting trough 252 through the connecting groove 254. The other end of the oil storage pipe 311 extends horizontally towards the support plate 12 and passes through the outside of the support plate 12. The end of the oil storage pipe 311 that passes through the outside of the support plate 12 bends upward. The upward-bent end of the oil storage pipe 311 is fixed with the same connecting pipe 312. The connecting pipe 312 is horizontally positioned and connected to the oil storage pipe 311. A insertion tube 313 is horizontally fixed to the side wall at the middle position of the connecting tube 312. The insertion tube 313 is horizontally positioned and has openings at both ends. One end of the insertion tube 313 is connected to and communicates with the connecting tube 312, while the other end extends away from the connecting tube 312. A silicone ring is fixed to the inner wall of the opening end of the insertion tube 313 away from the connecting tube 312.

[0046] When the slider 17 moves vertically, the lubricating oil thrown off the screw 14 enters the annular oil collecting groove 252 and the oil storage pipe 311 for storage. The upward bend at the end of the oil storage pipe 311 can block the lubricating oil temporarily stored in the oil storage pipe 311 to a certain extent, reducing the probability of lubricating oil splashing out from the end of the insertion pipe 313. In addition, although the upward bend at the end of the oil storage pipe 311 can block the lubricating oil in the oil storage pipe 311 to a certain extent, because the vertical movement speed of the slider 17 during operation is relatively fast, it will drive the lubricating oil in the oil storage pipe 311 to move into the insertion pipe 313 through the connecting pipe 312. Therefore, a silicone ring is provided on the wall of the insertion pipe 313 to block the small amount of lubricating oil entering the insertion pipe 313 and prevent the lubricating oil from spilling out.

[0047] Reference Figure 6 Each oil storage pipe 311 is vertically provided with a relief groove 121 on the support plate 12. When the slider 17 moves vertically, the oil storage pipe 311 moves along the length direction of the relief groove 121.

[0048] Reference Figure 7 A positioning plate 35 is fixedly mounted on the rear side of the top plate 11. The positioning plate 35 is horizontally positioned, and a vertical drive cylinder 351 is fixedly mounted on the bottom of the positioning plate 35. The cylinder body of the vertical drive cylinder 351 is fixedly connected to the bottom of the positioning plate 35, and the piston rod of the vertical drive cylinder 351 extends vertically downward and is fixedly connected to a vertical sliding plate 352. The centrifugal mechanism 33 slides horizontally along the vertical sliding plate 352. A horizontal drive cylinder 353 is mounted on the vertical sliding plate 352. The horizontal drive cylinder 353 is horizontally positioned, its cylinder body is fixedly connected to the vertical sliding plate 352, and its piston rod extends horizontally and is fixedly connected to the centrifugal mechanism 33.

[0049] Reference Figure 8 The centrifugal mechanism 33 includes a cylindrical outer shell 331 with an opening at the bottom and an end cap 332 hinged to the opening. An electromagnet is fixed to the top side of the end cap 332. A rotating drum 333 is rotatably connected inside the outer shell 331. The cross-sectional diameter of the rotating drum 333 is smaller than that of the outer shell 331. An oil hole 334 is opened on the outer side of the rotating drum 333, and the bottom of the rotating drum 333 is open.

[0050] Reference Figure 7 , 8 A drive gear ring 36 is sleeved on the outside of the rotating drum 333. A driven gear 361 meshes with the side wall of the drive gear ring 36. A connecting shaft 362 is fixed in the middle of the driven gear 361. The end of the connecting shaft 362 extends vertically upward and is fixed with a connecting gear 363.

[0051] Reference Figure 4 A synchronous rotating shaft 364 is fixed in the middle of the drive gear 113. The axis of the synchronous rotating shaft 364 is vertically arranged. A drive gear 365 is fixed at the end of the synchronous rotating shaft 364 away from the drive gear 113, and the end of the synchronous rotating shaft 364 is fixed to the middle of the drive gear 365.

[0052] When the slider 17 moves vertically, the connecting gear 363 meshes with the second drive gear 365. In this state, the output shaft of the drive motor 112 rotates, driving the first drive gear 113 to rotate, thereby driving the flywheel 111 to rotate. At the same time, the second drive gear 365 rotates synchronously with the first drive gear 113, driving the connecting gear 363, the driven gear 361, and the drive gear ring 36 to rotate, thereby realizing the rotation of the rotating drum 333 and filtering the lubricating oil.

[0053] Reference Figure 8 An oil inlet pipe 335 is fixedly provided on the top of the outer casing 331. The oil inlet pipe 335 is shaped like an inverted L. One end of the oil inlet pipe 335 passes through the top of the outer casing 331 and extends into the interior of the rotating drum 333. The other end of the oil inlet pipe 335 is provided with a tapered part, which is also tapered. The tapered part facilitates the insertion of the oil inlet pipe 335 into the end of the connector 313. When the tapered part is inserted into the end of the connector 313, it compresses the silicone ring, thereby making the connection between the tapered part and the connector 313 tighter. The silicone ring also provides a certain sealing effect when the tapered part is inserted into the end of the connector 313, thus facilitating the transport of lubricating oil.

[0054] Reference Figure 8 An oil outlet pipe 336 is fixedly provided on the side wall of the outer casing 331. The end of the oil outlet pipe 336 passes through the side wall of the outer casing 331 near the bottom and is connected to the outer casing 331.

[0055] When lubricating oil needs to be transported from the guide tube to the centrifugal mechanism 33 for filtration, the slider 17 is positioned near the top plate 11, and the piston rod of the vertical drive cylinder 351 extends, driving the vertical sliding plate 352 vertically downward. The vertical sliding plate 352 drives the centrifugal mechanism 33 to move vertically downward. On one hand, this disengages the connecting gear 363 from the drive gear 365; on the other hand, it positions the oil inlet pipe 335 and the insertion pipe 313 at the same height, facilitating the subsequent insertion of the oil inlet pipe 335 into the end of the insertion pipe 313. Then, the piston rod of the horizontal drive cylinder 353 extends, pushing the outer casing 331 horizontally towards the insertion pipe 313, thereby inserting the oil inlet pipe 335 into the insertion pipe 313, facilitating the transport of lubricating oil into the centrifugal mechanism 33.

[0056] Lubricating oil enters the rotating drum 333 through the oil inlet pipe 335. The rotation of the drum 333 throws the lubricating oil out through the oil hole 334 into the outer casing 331. The clean lubricating oil is then transported out of the centrifugal mechanism 33 through the oil outlet pipe 336. Additionally, during filtration, the electromagnet attracts magnetic substances in the lubricating oil, further improving the filtration effect. After filtration, the end cover 332 is opened to de-energize the electromagnet, facilitating the removal of the magnetic substances adsorbed on the electromagnet and other solid matter from the centrifugal mechanism 33.

[0057] Reference Figure 8 The oil outlet pipe 336 is L-shaped, with the end of the oil outlet pipe 336 away from the outer casing 331 extending vertically upward. The oil storage tank 34 is fixed to the end of the oil outlet pipe 336. A cooling water pipe is coiled around the outside of the oil outlet pipe 336. Cooling water is installed inside the cooling water pipe and flows inside the cooling water pipe. Both ends of the cooling water pipe are connected to a cooling device.

[0058] Cooling water flows in the cooling water pipe, thereby cooling the lubricating oil flowing through the oil outlet pipe 336 to improve the performance of the lubricating oil after recovery. The used cooling water flows into the cooling device for further cooling before flowing back to the oil outlet pipe 336 for cooling.

[0059] Reference Figure 7 The oil pump assembly 32 includes an oil pump 321 and an oil pump 322. The oil pump 321 is located on the outer casing 331 at the position corresponding to the oil inlet pipe 335, and can provide power for transporting lubricating oil from the oil storage pipe 311 to the rotating drum 333. The oil pump 322 is located on the oil storage tank 34 at the position corresponding to the oil outlet pipe 336, and can provide power for transporting lubricating oil from the outer casing 331 to the oil storage tank 34.

[0060] A telescopic pipe is installed on the top of the oil storage tank 34, connecting and communicating with the oil storage tank 34. A transport pipe is fixedly connected to the end of the telescopic pipe, which is located inside the top plate 11 and connected and communicating with the telescopic pipe. A nozzle is fixedly installed at the end of the transport pipe away from the telescopic pipe, and the nozzle is located near the screw 14. The oil storage tank 34 is used to store externally added lubricating oil and lubricating oil collected in the annular oil collecting trough 252. When it is necessary to spray lubricating oil onto the screw 14, the lubricating oil is sprayed from the oil storage tank 34 sequentially along the telescopic pipe and the transport pipe to the screw 14 from the nozzle. In addition, the telescopic pipe can prevent interference with the movement of the oil storage tank 34 when it moves.

[0061] The implementation principle of a protective cover for a forging press in this application embodiment is as follows: During the vertical movement of the slider 17, the covers 21 move towards or away from each other along their own length direction, allowing the protective cover body 2 to extend or shorten in tandem with the movement of the slider 17. This avoids interference with the movement of the slider 17 and ensures that the cover always protects the screw 14. Additionally, during this process, the lubricating oil splashed off the screw 14 is blocked by the covers 21 and enters the annular oil collection groove 252 and the oil storage pipe 311 for storage.

[0062] When lubricating oil recovery is required, the slider 17 is positioned near the top plate 11, and the piston rod of the vertical drive cylinder 351 extends, causing the vertical sliding plate 352 to move vertically downwards. The vertical sliding plate 352 drives the centrifugal mechanism 33 to move vertically downwards, disengaging the connecting gear 363 from the drive gear 365, and positioning the oil inlet pipe 335 and the insertion pipe 313 at the same height, facilitating the subsequent insertion of the oil inlet pipe 335 into the end of the insertion pipe 313. Then, the piston rod of the horizontal drive cylinder 353 extends, pushing the outer casing 331 horizontally towards the insertion pipe 313, thereby inserting the oil inlet pipe 335 into the insertion pipe 313, facilitating the transport of lubricating oil into the centrifugal mechanism 33. Under the power provided by the oil pump 321, the lubricating oil enters the rotating drum 333 from the oil inlet pipe 335 and is stored in the rotating drum 333.

[0063] After collecting the lubricating oil, the piston rod of the horizontal drive cylinder 353 is retracted first, causing the oil inlet pipe 335 to disengage from the connector 313. Then, the piston rod of the vertical drive cylinder 351 is retracted, causing the vertical sliding plate 352 to move vertically upward until the connecting gear 363 and the drive gear mesh with each other.

[0064] Then, the output shaft of the drive motor 112 rotates, driving the drive gear 113 to rotate, which in turn drives the flywheel 111 to rotate, causing the slider 17 to move vertically. Simultaneously, the drive gear 365 rotates synchronously with the drive gear 113, driving the connecting gear 363, the driven gear 361, and the drive gear ring 36 to rotate, thus rotating the drum 333 and filtering the lubricating oil. The rotation of the drum 333 throws the lubricating oil from the oil hole 334 into the outer casing 331. The clean lubricating oil, along the oil outlet pipe 336, enters the oil storage tank 34 for storage under the power provided by the oil pump 322. During this process, the lubricating oil is cooled by the cooling water pipe, improving the lubrication effect. When it is necessary to spray lubricating oil onto the screw 14, the lubricating oil is sprayed from the oil storage tank 34 sequentially along the telescopic pipe and the transport pipe from the nozzle onto the screw 14. Furthermore, the telescopic pipe prevents interference with the movement of the oil storage tank 34.

[0065] In addition, during filtration, the electromagnet attracts magnetic substances in the lubricating oil, further improving the filtration effect. After filtration, the end cover 332 is opened to de-energize the electromagnet, making it easier to remove the magnetic substances adsorbed on the electromagnet and other solid substances from the centrifugal mechanism 33.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective cover for a forging press, characterized in that: Includes the protective cover body (2) and the oil return device (3): The protective cover body (2) is disposed between the slide block (17) and the top plate (11) of the forging press, covering the outside of the screw (14) to block the splashing of lubricating oil. The protective cover body (2) includes: At least two covers (21) are provided, and the covers (21) are slidably connected so that the protective cover body (2) can be extended or shortened as the distance between the slider (17) and the top plate (11) changes; The bottom connecting plate (25) is fixed between the slider (17) and the protective cover body (2). The bottom connecting plate (25) is provided with an annular oil collection groove (252), which is used to collect the lubricating oil thrown out from the screw (14). The oil return device (3) is installed on the side of the forging press and is used to recover and reuse the lubricating oil in the annular oil collection groove (252). The oil return device (3) includes: Oil storage tank (34) is used to store externally added lubricating oil and lubricating oil collected in the annular oil collection tank (252). The oil storage tank (34) is provided with a nozzle for spraying lubricating oil onto the screw (14). The conveying pipe assembly (31) is located between the bottom connecting plate (25) and the oil storage tank (34) to provide a channel for transporting lubricating oil from the annular oil collection trough (252) to the oil storage tank (34); An oil pump assembly (32) is used to provide power for transporting lubricating oil from the annular oil collection tank (252) to the oil storage tank (34); The delivery pipe assembly (31) includes: At least two oil storage pipes (311) are provided. One end of each oil storage pipe (311) is fixed on the same side of the bottom connecting plate (25) and connected to the annular oil collection groove (252). The other end of the oil storage pipe (311) extends horizontally towards the support plate (12) and passes through the outside of the support plate (12). The end of the oil storage pipe (311) that passes through the outside of the support plate (12) is bent upward. The connecting pipe (312) is horizontally fixed at the end of all oil storage pipes (311) and is connected to the oil storage pipes (311); The insertion tube (313) is horizontally set with openings at both ends. One end is connected to and communicates with the connecting tube (312), and the other end extends away from the connecting tube (312). The oil return device (3) includes: Centrifugal mechanism (33) is used to filter contaminants in lubricating oil; The oil inlet pipe (335) is fixedly connected to and connected to the centrifugal mechanism (33) at one end. When it is necessary to transport lubricating oil from the oil storage pipe (311) to the centrifugal mechanism (33) for filtration, the oil inlet pipe (335) is inserted into the end of the insertion pipe (313) and connected to and connected to the insertion pipe (313). When the slider (17) moves vertically, the oil inlet pipe (335) is disengaged from the insertion pipe (313). The oil outlet pipe (336) is connected to the centrifugal mechanism (33) at one end and to the oil storage tank (34) at the other end. The centrifugation mechanism (33) includes: The outer casing (331) is cylindrical with an opening at the bottom. An end cap (332) is hinged to the bottom opening of the outer casing (331), and an electromagnet is fixed to the top side of the end cap (332). Rotary drum (333) is rotatably connected inside the outer shell (331). The cross-sectional diameter of the rotary drum (333) is smaller than that of the outer shell (331). An oil hole (334) is provided on the outer side of the rotary drum (333). An opening is provided at the bottom of the rotary drum (333). The end of the oil inlet pipe (335) passes through the top of the outer shell (331) and extends into the rotating drum (333), and the end of the oil outlet pipe (336) passes through the side wall of the outer shell (331) near the bottom and communicates with the outer shell (331); The oil return device (3) includes: Drive gear two (365) is horizontally set, and a synchronous rotating shaft (364) is fixedly connected to the middle. The end of the synchronous rotating shaft (364) away from drive gear two (365) is fixedly connected to the middle of drive gear one (113); The connecting gear (363) meshes with or disengages from the side wall of the second drive gear (365). A connecting shaft (362) is fixedly connected to the middle of the connecting gear (363), and the axis of the connecting shaft (362) is vertically arranged. The driven gear (361) is horizontally disposed at the end of the connecting shaft (362); The drive gear ring (36) is sleeved on the outside of the rotating cylinder (333), and its sidewall meshes with the driven gear (361); The output shaft of the drive motor (112) rotates, which drives the drive gear (113) to rotate, thereby driving the flywheel (111) to rotate. The rotation of the flywheel (111) drives the screw (14) to rotate, which in turn drives the slider (17) to move vertically. A vertical sliding plate (352) is horizontally arranged. The vertical sliding plate (352) is connected to a vertical driving cylinder (351), which is used to drive the vertical sliding plate (352) to move vertically. A horizontal drive cylinder (353) is horizontally positioned and is used to drive the housing (331) to slide along the horizontal direction of the vertical sliding plate (352). The cylinder body is fixedly connected to the vertical sliding plate (352).

2. The protective cover for a forging press according to claim 1, characterized in that: The inner wall of the cover (21) is fixed with blocking members (22) near both ends, and a sliding channel (221) is formed between the two blocking members (22) on the same cover (21); The outer wall of the cover (21) is fixed with a sliding member (23). When the covers (21) slide relative to each other, the sliding member (23) slides in the sliding channel (221).

3. A protective cover for a forging press according to claim 2, characterized in that: The horizontal cross-sectional diameters of the covers (21) arranged sequentially from the top plate (11) towards the slider (17) increase sequentially. An oil leakage groove (222) is provided in the middle of the blocking member (22) located on the cover (21) near the slider (17).

4. A protective cover for a forging press according to claim 1, characterized in that: A silicone ring is fixed to the inner wall of the opening end of the insertion tube (313) away from the connecting tube (312); The oil inlet pipe (335) has a tapered section at its end, and the tapered section is tapered in shape.

5. A protective cover for a forging press according to claim 1, characterized in that: The oil outlet pipe (336) is surrounded by a cooling water pipe, which contains cooling water that flows within it. Both ends of the cooling water pipe are connected to a cooling device.

6. A protective cover for a forging press according to claim 1, characterized in that: The oil pump assembly (32) includes: An oil pump (321) is installed on the centrifugal mechanism (33) at the position corresponding to the oil inlet pipe (335) to provide power for transporting lubricating oil from the oil storage pipe (311) into the centrifugal mechanism (33); The second oil pump (322) is located on the oil storage tank (34) at the position corresponding to the oil outlet pipe (336) and is used to provide power for transporting lubricating oil from the centrifugal mechanism (33) to the oil storage tank (34).

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