Lightweight press with bearing air cooling function

Abstract

The application discloses a lightweight press machine with bearing air cooling function and relates to the technical field of hot die forging presses.The press machine body is provided with an outer shell fixedly connected to one side of the press machine body, a main transmission shaft rotatably connected to the inside of the press machine body, a main gear fixedly connected to one end of the main transmission shaft, a support bearing, a heat dissipation mechanism and a lubricating mechanism installed on the outer wall of the main transmission shaft in the inside of the press machine body.The heat dissipation mechanism is arranged, the motor runs to drive the fan to rotate, the fan rotation drives the outside air to enter the air inlet, the air flows into the installation groove through the air inlet, and then is discharged through the air outlet.When the air enters the air inlet, it passes through the filter plate, the filter plate filters the dust in the air, the heat on the inner ring is led to the heat conduction ring through the heat conduction plate by the retainer, and the heat conduction plate and the heat conduction ring are used for increasing the heat dissipation area of the support bearing, so that the air cooling operation is facilitated to cool the support bearing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot die forging presses, and particularly relates to a lightweight press with bearing air cooling function. BACKGROUND

[0002] As the core equipment of modern forging industry, hot die forging presses are widely used in key fields such as automobiles, aerospace, heavy machinery, etc. due to their high precision, high efficiency and high reliability, especially in the production of large military forgings. However, during the long-term continuous operation of the equipment, the support bearings of the main transmission system inevitably generate a large amount of heat due to continuous heavy load and high-speed friction.

[0003] Traditional heat dissipation methods often rely on simple natural convection or basic air cooling design, and the heat dissipation efficiency is limited. Moreover, there is a lack of effective heat conduction and air flow organization optimization for key heating parts of the bearing, which makes it difficult to control the bearing temperature rise. Excessive operating temperature not only accelerates the oxidation and failure of lubricating grease, reduces the lubrication effect, but also may cause thermal deformation and performance degradation of bearing component materials, significantly shortens the service life of the bearing, and even causes abnormal wear and sudden failure. At the same time, the existing structure usually needs to stop and disassemble part of the shell or air duct assembly when supplementing lubricating oil, which makes the maintenance process complicated, affects the production continuity, and increases the complexity and time cost of equipment maintenance.

[0004] Therefore, how to design an integrated structure that can realize efficient and directional air cooling of the support bearing while achieving lightweight of the equipment, and realize rapid lubrication supplement without stopping and disassembly, has become a technical problem to be solved for improving the operation reliability of the hot die forging press, prolonging the service life of the key components, and reducing the comprehensive maintenance cost. SUMMARY

[0005] The present application relates to the technical field of hot die forging presses, and particularly relates to a lightweight press with bearing air cooling function.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a lightweight press with bearing air cooling function, comprising a press body, one side of the press body is fixedly connected with a shell, the inside of the press body is rotatably connected with a main transmission shaft, one end of the main transmission shaft is fixedly connected with a main gear, the main gear is located in the inner cavity of the shell, the inside of the press body is located on the outer wall of the main transmission shaft and is provided with a support bearing, the support bearing is composed of an outer ring, an inner ring, a roller and a retainer, the inner ring is located in the inner cavity of the outer ring, the roller is located between the outer ring and the inner ring, the retainer is located on the outer wall of the roller, the retainer is used for positioning the spacing of a plurality of rollers, the support bearing is cooled by a heat dissipation mechanism, the support bearing is added with lubricating oil by a lubricating mechanism,

[0007] The heat dissipation mechanism comprises a heat conduction plate, the heat conduction plate is fixedly connected to the outer wall of the retainer, one end of the heat conduction plate is fixedly connected with a heat conduction ring, the outer wall of the heat conduction ring is provided with an annular groove, the top end of the press body is fixedly connected with a mounting seat.

[0008] As a further scheme of the present application: the heat dissipation mechanism further comprises a mounting groove, the mounting groove is opened in the inside of the press body, the support bearing is mounted in the inner cavity of the mounting groove, the top end of the mounting seat is provided with an air inlet, the air inlet is in communication with the mounting groove, the top end of the mounting groove is provided with an air outlet, the air outlet extends to the top end of the press body, the top end of the air inlet is mounted with a filter plate, the outer wall of the air inlet is fixedly connected with a mounting plate, the bottom end of the mounting plate is mounted with a motor, the output end of the motor is connected with a fan.

[0009] As a further scheme of the present application: the lubricating mechanism comprises a shielding groove, the shielding groove is opened at the top end of the mounting seat, the inner wall bottom end of the shielding groove is provided with an oil injection groove, the bottom end of the oil injection groove is provided with a connecting groove, the connecting groove is in communication with the air inlet, one side of the shielding groove is provided with a fixed groove, the inner wall of the shielding groove is rotatably connected with a baffle, the inside of the baffle is slidably connected with a fixed block extending out of the baffle, the first spring is connected between the fixed block and the baffle, the top end of the mounting seat is provided with a gas guide hole on one side of the shielding groove, the gas guide hole is in communication with the air inlet.

[0010] As a further scheme of the present application: the lubricating mechanism further comprises a transverse plate fixedly connected to one side of the inner wall of the air inlet, a rotating plate rotatably connected to the connecting position of the inner wall of the air inlet and the air guide opening, a second spring connected between the rotating plate and the transverse plate, a rotating rod fixedly connected to the outer wall of the rotating plate, a displacement frame slidably connected to the inside of the mounting seat below the rotating plate, a third spring connected between the bottom end of the displacement frame and the mounting seat, the displacement frame extending to the inner cavity of the shielding groove, a transverse groove formed in the inside of the heat conduction plate, an arc-shaped groove formed in the inside of the retainer, the two ends of the transverse groove being respectively connected to the annular groove and the arc-shaped groove, and an arc-shaped supporting plate fixedly connected to the inner wall bottom end of the mounting groove, the heat conduction ring being located at the top end of the arc-shaped supporting plate.

[0011] As a further scheme of the present application: the shape of the fixed block is L-shaped, and one end of the outer wall of the fixed block is fitted with the inner wall of the fixed groove.

[0012] As a further scheme of the present application: an inclined surface is arranged at one end of the displacement frame close to the rotating rod, and the top end of the inclined surface is in contact with the rotating rod.

[0013] As a further scheme of the present application: the rotating plate and the rotating rod are L-shaped.

[0014] As a further scheme of the present application: the outer wall of the rotating plate is fitted with the inner wall of the air inlet.

[0015] As a further scheme of the present application: a supporting block is fixedly connected to the inner wall of the air inlet above the transverse plate.

[0016] As a further scheme of the present application: the outer wall of the top of the arc-shaped supporting plate is fitted with the outer wall of the heat conduction ring.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The present application effectively solves the problems of traditional hot die forging press support bearing, such as high temperature rise, low heat dissipation efficiency, inconvenient maintenance and the like in long time high load operation, through integrated air cooling heat dissipation and sealed lubrication design. Specifically, by arranging the heat conduction plate and the heat conduction ring structure directly connected with the retainer, the effective heat dissipation area of the key heating part of the bearing is significantly increased, and combined with the filtered directional forced air flow driven by the motor, the active cooling of the support bearing is realized, the running temperature environment of the bearing is improved, the high temperature failure of the lubricating grease is delayed, the material deformation and performance attenuation caused by overheating are avoided, thereby prolonging the service life of the bearing and the operation reliability of the equipment.

[0019] Meanwhile, the application innovatively combines the lubricating supply mechanism with the air-cooling flow channel. Through the unique design of the baffle, rotating plate and linkage mechanism, when the oil injection channel is opened, the air-cooling inlet channel can be automatically switched to the bypass exhaust, effectively avoiding the oil splashing and pollution caused by air flow interference during lubricating oil injection. The lubricating oil can be accurately injected into the annular oil storage groove inside the bearing through the sealed flow channel, and permeate to the roller contact area through the horizontal groove and the arc-shaped groove, realizing the directional supplement of lubricating oil. This process does not need to disassemble any external structure or stop operation, significantly improving the convenience and safety of maintenance operation, reducing the maintenance cost, and ensuring the continuous and efficient production operation.

[0020] In summary, the application provides a bearing heat management solution with high heat dissipation efficiency, convenient lubrication maintenance, compact and reliable structure, under the premise of realizing the overall lightweight of the press machine, which has outstanding practicality and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the application;

[0022] Figure 2 is an installation schematic diagram of the main transmission shaft of the application;

[0023] Figure 3 is an installation schematic diagram of the support bearing of the application;

[0024] Figure 4 is a structural schematic diagram of the support bearing of the application;

[0025] Figure 5 is an installation schematic diagram of the heat-conducting ring of the application;

[0026] Figure 6 is an installation schematic diagram of the mounting seat of the application;

[0027] Figure 7 is an internal structure schematic diagram of the mounting seat of the application;

[0028] Figure 8 is an installation schematic diagram of the baffle of the application;

[0029] Figure 9 is an internal structure schematic diagram of the baffle of the application;

[0030] Figure 10 is an internal structure schematic diagram of the retainer of the application;

[0031] Figure 11 is a structural schematic diagram of the arc-shaped groove of the application.

[0032] In the figure: 1, the machine body; 2, the shell; 3, the main gear; 4, the main transmission shaft; 5, the support bearing; 6, the heat dissipation mechanism; 601, the heat conduction plate; 602, the heat conduction ring; 603, the annular groove; 604, the mounting seat; 605, the air inlet; 606, the mounting groove; 607, the air outlet; 608, the filter plate; 609, the mounting plate; 610, the motor; 611, the fan; 7, the lubricating mechanism; 701, the shielding groove; 702, the oil injection groove; 703, the connecting groove; 704, the fixing groove; 705, the baffle; 706, the fixed block; 707, the first spring; 708, the air guide; 709, the horizontal plate; 710, the rotating plate; 711, the second spring; 712, the rotating rod; 713, the displacement frame; 714, the third spring; 715, the horizontal groove; 716, the arc groove; 717, the arc-shaped supporting plate; 8, the outer ring; 9, the inner ring; 10, the roller; 11, the retainer; 12, the support block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0035] Please refer to Figures 1 to 11The embodiment of the application discloses a lightweight press machine with bearing air cooling function, which comprises a press machine body 1, an outer shell 2 fixedly connected to one side of the press machine body 1, a main transmission shaft 4 rotatably connected to the inside of the press machine body 1, a main gear 3 fixedly connected to one end of the main transmission shaft 4, wherein the main gear 3 is located in the inner cavity of the outer shell 2, a support bearing 5 installed on the outer wall of the main transmission shaft 4 in the inside of the press machine body 1, wherein the support bearing 5 is composed of an outer ring 8, an inner ring 9, a roller 10 and a retainer 11, the inner ring 9 is located in the inner cavity of the outer ring 8, the roller 10 is located between the outer ring 8 and the inner ring 9, and the retainer 11 is located on the outer wall of the roller 10 and is used for positioning the spacing of the plurality of rollers 10, the support bearing 5 is cooled by a heat dissipation mechanism 6, and the support bearing 5 is added with lubricating oil by a lubricating mechanism 7.

[0036] The heat dissipation mechanism 6 comprises a heat conduction plate 601 fixedly connected to the outer wall of the retainer 11, a heat conduction ring 602 fixedly connected to one end of the heat conduction plate 601, an annular groove 603 formed in the outer wall of the heat conduction ring 602, a mounting seat 604 fixedly connected to the top end of the press machine body 1, and a mounting groove 606 formed in the inside of the press machine body 1, wherein the support bearing 5 is installed in the inner cavity of the mounting groove 606, an air inlet 605 is formed in the top end of the mounting seat 604 and is in communication with the mounting groove 606, an air outlet 607 is formed in the top end of the mounting groove 606 and extends to the top end of the press machine body 1, a filter plate 608 is installed at the top end of the air inlet 605, a mounting plate 609 is fixedly connected to the outer wall of the air inlet 605, a motor 610 is installed at the bottom end of the mounting plate 609, and a fan 611 is connected to the output end of the motor 610.

[0037] In the embodiment, the motor 610 drives the fan 611 to rotate, the fan 611 drives the external air to enter the air inlet 605, the air flows into the mounting groove 606 through the air inlet 605 and is discharged through the air outlet 607, when the air enters the air inlet 605, the air passes through the filter plate 608, the filter plate 608 filters the dust in the air, the retainer 11 guides the heat on the inner ring 9 to the heat conduction ring 602 through the heat conduction plate 601, the heat conduction plate 601 and the heat conduction ring 602 are used for increasing the heat dissipation area of the support bearing 5 and facilitating the cooling of the support bearing 5 by air cooling, and it is worth noting that the heat conduction plate 601 and the heat conduction ring 602 are made of heat conduction metal materials and are used for efficiently cooling the support bearing 5.

[0038] Please pay attention to Figures 6 to 11The lubricating mechanism 7 comprises a shielding groove 701, which is arranged at the top end of the mounting seat 604. An oil injection groove 702 is arranged at the inner wall bottom end of the shielding groove 701. A connecting groove 703 is arranged at the bottom end of the oil injection groove 702, and is in communication with the air inlet 605. A fixing groove 704 is arranged at one side of the shielding groove 701. A baffle 705 is rotatably connected to the inner wall of the shielding groove 701. A fixing block 706 extending out of the baffle 705 is slidably connected to the inside of the baffle 705. A first spring 707 is connected between the fixing block 706 and the baffle 705. A gas guide opening 708 is arranged at one side of the top end of the mounting seat 604, and is in communication with the air inlet 605. The lubricating mechanism 7 further comprises a horizontal plate 709, which is fixedly connected to one side of the inner wall of the air inlet 605. A rotating plate 710 is rotatably connected to the inner wall of the air inlet 605 at the connecting position of the air inlet 605 and the gas guide opening 708. A second spring 711 is connected between the rotating plate 710 and the horizontal plate 709. A rotating rod 712 is fixedly connected to the outer wall of the rotating plate 710. A displacement frame 713 is slidably connected to the inside of the mounting seat 604 below the rotating plate 710. A third spring 714 is connected between the bottom end of the displacement frame 713 and the mounting seat 604. The displacement frame 713 extends to the inner cavity of the shielding groove 701. A horizontal groove 715 is arranged in the inside of the heat conduction plate 601. An arc-shaped groove 716 is arranged in the inside of the retainer 11. The two ends of the horizontal groove 715 are in communication with the annular groove 603 and the arc-shaped groove 716, respectively. An arc-shaped supporting plate 717 is fixedly connected to the inner wall bottom end of the mounting groove 606. The heat conduction ring 602 is located at the top end of the arc-shaped supporting plate 717.

[0039] In the present embodiment: when the supporting bearing 5 is operated to add lubricating oil, the fixing block 706 is pushed, the first spring 707 is extruded, the fixing block 706 is displaced out of the fixing groove 704, the fixing of the baffle 705 is cancelled, the baffle 705 is rotated to open the top end of the oil injection groove 702, at this time, the displacement frame 713 is upwardly displaced under the action of the third spring 714, the displacement frame 713 is displaced to push the rotating rod 712 to rotate, the rotating rod 712 rotates to drive the rotating plate 710 to synchronously rotate, the second spring 711 is extruded, the rotating plate 710 rotates to cut off the air inlet 605, and automatically opens the gas guide opening 708, the air entering the air inlet 605 is discharged through the gas guide opening 708, which is used to prevent the subsequent addition of lubricating oil from being scattered by wind force; at this time, the lubricating oil is added into the oil injection groove 702, the lubricating oil falls into the annular groove 603 through the oil injection groove 702, the connecting groove 703 and the air inlet 605, and finally stays in the cavity formed by the arc-shaped supporting plate 717 and the annular groove 603, the lubricating oil flows into the arc-shaped groove 716 through the horizontal groove 715, and then contacts the roller 10 through the arc-shaped groove 716, thereby completing the operation of adding lubricating oil to the supporting bearing 5.

[0040] After the completion, the baffle 705 is rotated to close the oil injection groove 702, then the fixing block 706 is loosened, the fixing block 706 is clamped into the fixed groove 704 under the elastic force of the first spring 707, the baffle 705 is fixed, and in the process, the baffle 705 is in contact with the displacement frame 713 to press the third spring 714, then the rotating plate 710 is reset under the elastic force of the second spring 711, the rotating plate 710 is closed to the air inlet 708, so that the air can smoothly pass through the air inlet 605, and the design can facilitate the supplement of lubricating oil to the supporting bearing 5 without disassembling the external structure and then adding lubricating oil.

[0041] Please refer to Figures 6 to 11 The shape of the fixing block 706 is L-shaped, and one end of the outer wall of the fixing block 706 is attached to the inner wall of the fixed groove 704.

[0042] In this embodiment: the rotating baffle 705 is closed to the oil injection groove 702, then the fixing block 706 is loosened, the fixing block 706 is clamped into the fixed groove 704 under the elastic force of the first spring 707, and the baffle 705 is fixed.

[0043] Please refer to Figures 6 to 11 The end of the displacement frame 713 close to the rotating rod 712 is provided with an inclined surface, the top end of the inclined surface is in contact with the rotating rod 712, and the rotating plate 710 and the rotating rod 712 are L-shaped.

[0044] In this embodiment: at this time, the displacement frame 713 is displaced upward under the elastic force of the third spring 714, the displacement frame 713 is displaced to drive the rotating rod 712 to rotate, the rotating rod 712 drives the rotating plate 710 to rotate synchronously, and the second spring 711 is pressed.

[0045] Please refer to Figures 6 to 11 The outer wall of the rotating plate 710 is attached to the inner wall of the air inlet 605, and the inner wall of the air inlet 605 is fixedly connected with the supporting block 12 above the horizontal plate 709.

[0046] In this embodiment: the rotating plate 710 is closed to the air inlet 708, and the supporting block 12 supports the bottom end of the rotating plate 710 at this time.

[0047] Please refer to Figures 6 to 11 The top outer wall of the arc-shaped supporting plate 717 is in sliding attachment with the outer wall of the heat-conducting ring 602.

[0048] In the embodiment, the heat-conducting ring 602 rotates at the top end of the arc-shaped supporting plate 717, the bottom end of the heat-conducting ring 602, the annular groove 603 and the arc-shaped supporting plate 717 form a cavity, the lubricating oil falls into the annular groove 603 through the oil injection groove 702, the connecting groove 703 and the air inlet 605, and finally stays in the cavity formed by the arc-shaped supporting plate 717 and the annular groove 603, the lubricating oil flows into the arc-shaped groove 716 through the transverse groove 715, and then contacts the roller 10 through the arc-shaped groove 716.

[0049] It should be noted that a slight gap is allowed between the top outer wall of the arc-shaped supporting plate 717 and the outer wall of the heat-conducting ring 602, since the oil injection operation is only performed during regular maintenance, after the lubricating oil enters the cavity formed by the arc-shaped supporting plate 717 and the annular groove 603 from the annular groove 603, it quickly flows into the arc-shaped groove 716 through the transverse groove 715, and will not stay in the cavity formed by the arc-shaped supporting plate 717 and the annular groove 603 all the time, therefore, even if a small amount of leakage occurs through the slight gap between the arc-shaped supporting plate 717 and the heat-conducting ring 602, it is still within an acceptable range, and it is only necessary to open a lubricating oil guide groove at the bottom of the mounting groove 606 or to clean up during overhaul.

[0050] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A lightweight press with bearing air cooling function, comprising a press body (1), characterized in that, A housing (2) is fixedly connected to one side of the press body (1). A main drive shaft (4) is rotatably connected inside the press body (1). A main gear (3) is fixedly connected to one end of the main drive shaft (4). The main gear (3) is located in the inner cavity of the housing (2). A support bearing (5) is installed inside the press body (1) on the outer wall of the main drive shaft (4). The support bearing (5) is composed of an outer ring (8), an inner ring (9), rollers (10), and a cage (11). The inner ring (9) is located in the inner cavity of the outer ring (8). The rollers (10) are located between the outer ring (8) and the inner ring (9). The cage (11) is located on the outer wall of the rollers (10). The cage (11) is used to position the spacing of the multiple rollers (10). The support bearing (5) is cooled by a heat dissipation mechanism (6). The support bearing (5) is lubricated by a lubrication mechanism (7). The heat dissipation mechanism (6) includes a heat-conducting plate (601), which is fixedly connected to the outer wall of the retainer (11). A heat-conducting ring (602) is fixedly connected to one end of the heat-conducting plate (601). An annular groove (603) is provided on the outer wall of the heat-conducting ring (602). A mounting base (604) is fixedly connected to the top of the press body (1). The heat dissipation mechanism (6) also includes a mounting groove (606), which is located inside the press body (1). The support bearing (5) is installed in the inner cavity of the mounting groove (606). The top of the mounting base (604) is provided with an air inlet (605), which is connected to the mounting groove (606). The top of the mounting groove (606) is provided with an exhaust port (607), which extends to the top of the press body (1). A filter plate (608) is installed at the top of the air inlet (605). A mounting plate (609) is fixedly connected to the outer wall of the air inlet (605). A motor (610) is installed at the bottom of the mounting plate (609), and a fan (611) is connected to the output end of the motor (610). The lubrication mechanism (7) includes a shielding groove (701), which is located at the top of the mounting base (604). An oil filling groove (702) is formed at the bottom of the inner wall of the shielding groove (701), and a connecting groove (703) is formed at the bottom of the oil filling groove (702). The connecting groove (703) is connected to the air inlet (605). A fixing groove (704) is formed on one side of the shielding groove (701). 01) has a baffle (705) rotatably connected to its inner wall. A fixing block (706) extending out of the baffle (705) is slidably connected inside the baffle (705). A first spring (707) is connected between the fixing block (706) and the baffle (705). The top of the mounting base (604) is provided with an air guide port (708) on one side of the shielding groove (701). The air guide port (708) is connected to the air inlet (605). The lubrication mechanism (7) further includes a horizontal plate (709), which is fixedly connected to one side of the inner wall of the air inlet (605). A rotating plate (710) is rotatably connected to the inner wall of the air inlet (605) at the connection position with the air guide (708). A second spring (711) is connected between the rotating plate (710) and the horizontal plate (709). A rotating rod (712) is fixedly connected to the outer wall of the rotating plate (710). A displacement frame (713) is slidably connected inside the mounting base (604) below the rotating plate (710). A third spring (714) is connected between the bottom end of the displacement bracket (713) and the mounting base (604). The displacement bracket (713) extends into the inner cavity of the shielding groove (701). A horizontal groove (715) is opened inside the heat-conducting plate (601). An arc groove (716) is opened inside the retainer (11). The two ends of the horizontal groove (715) are respectively connected to the annular groove (603) and the arc groove (716). An arc support plate (717) is fixedly connected to the bottom end of the inner wall of the mounting groove (606). The heat-conducting ring (602) is located at the top of the arc support plate (717). The fixing block (706) is L-shaped, and the outer wall of one end of the fixing block (706) is in contact with the inner wall of the fixing groove (704); The displacement frame (713) has an inclined surface at one end near the rotating rod (712), and the top of the inclined surface is in contact with the rotating rod (712); The outer wall of the rotating plate (710) is in contact with the inner wall of the air inlet (605).

2. A lightweight press with bearing air-cooling function according to claim 1, characterized in that, The rotating plate (710) and the rotating rod (712) are arranged in an L-shape.

3. A lightweight press with bearing air-cooling function according to claim 1, characterized in that, The inner wall of the air inlet (605) is fixedly connected to a support block (12) above the horizontal plate (709).

4. A lightweight press with bearing air-cooling function according to claim 1, characterized in that, The top outer wall of the arc-shaped support plate (717) is in contact with the outer wall of the heat-conducting ring (602).

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