Double drive device of four-roll plate bending machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHUNQIU HEAVY MASCH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-14
Smart Images

Figure CN224487421U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal sheet processing technology, and in particular to a dual-drive device for a four-roll plate rolling machine. Background Technology
[0002] Four-roll plate bending machines are widely used in industries such as pressure vessel and pipe manufacturing due to their excellent rolling precision and efficiency. However, the drive shaft of traditional four-roll plate bending machines suffers from significant technical defects during long-term high-speed operation due to the lack of a precise and stable lubrication mechanism, which restricts the performance and service life of the equipment.
[0003] Regarding the aforementioned and existing related technologies, the inventors believe that the following defects often exist: Traditional plate rolling machines mostly use manual timed lubrication or simple oil spraying methods, which makes it difficult to achieve uniform and continuous lubrication of the drive shaft. The contact areas between the drive shaft and components such as gears and bearings are prone to localized dry friction due to uneven lubrication distribution, leading to accelerated component wear, increased surface roughness of the drive shaft, affecting the transmission accuracy of the plate rolling machine, and shortening the equipment overhaul cycle. Utility Model Content
[0004] The technical problem to be solved by this utility model is that traditional lubrication methods cannot dynamically adjust the amount and position of lubrication according to the actual operating state of the drive shaft. For high-speed and heavy-load conditions, it is difficult to effectively suppress the temperature of the drive shaft, which leads to a decrease in the viscosity of the lubricating oil, lubrication failure, and aggravation of component wear and equipment failure. To this end, we propose a dual-drive device for a four-roll plate bending machine.
[0005] To achieve the above objectives, this application adopts the following technical solution: a dual-drive device for a four-roll plate rolling machine, comprising a plate rolling machine body, a lubricating oil tank fixedly connected to the surface of the plate rolling machine body, a connecting chamber connected to the surface of the lubricating oil tank, and a plurality of oil dripping pipes connected to one side of the connecting chamber, the oil dripping pipes being located above the drive shaft of the plate rolling machine body.
[0006] Preferably, a servo motor is fixedly connected to one side of the lubricating oil tank, a lead screw is fixedly connected to the output end of the servo motor, a threaded cylinder is threaded to the arc surface of the lead screw, and an adjusting plate is fixedly connected to one end of the threaded cylinder, with the adjusting plate located above the connecting tank.
[0007] Preferably, the surface of the lubricating oil tank is provided with a groove, the inner wall of the groove of the lubricating oil tank is slidably connected with a cover plate, a fixing rod is fixedly connected to one side of the cover plate, a limit bracket is slidably connected to the arc surface of the fixing rod, and a mounting plate is fixedly connected to one side of the lubricating oil tank, and a limit hole is provided on the surface of the mounting plate.
[0008] Preferably, the arc surface of the fixing rod is fitted with a spring, and the two ends of the spring are fixedly connected to the limiting frame and the lubricating oil tank, respectively.
[0009] Preferably, a stop is fixedly connected to one end of the fixing rod.
[0010] Preferably, a sealing gasket is fixedly connected to the surface of the cover plate.
[0011] Preferably, the adjusting plate is slidably connected to the inner wall of the lubricating oil tank.
[0012] The technical effects and advantages of this utility model are: it achieves precise and uniform lubrication of key friction parts of the drive shaft, reduces the wear rate of components, improves transmission accuracy, and can dynamically adjust the amount of oil dripping according to the real-time working conditions of the drive shaft, reducing lubricant waste, reducing equipment energy consumption, reducing downtime due to malfunctions, and reducing the failure rate. Attached Figure Description
[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of the lubricating oil tank in this utility model;
[0016] Figure 3 In this utility model Figure 2 Partial structural diagram;
[0017] Figure 4 In this utility model Figure 2 Enlarged view of point A.
[0018] Legend: 1. Plate rolling machine body; 2. Lubricating oil tank; 3. Connecting tank; 4. Oil drip pipe; 5. Servo motor; 6. Lead screw; 7. Threaded cylinder; 8. Adjusting plate; 9. Cover plate; 10. Fixing rod; 11. Limiting frame; 12. Mounting plate; 13. Spring; 14. Stop block; 15. Sealing gasket. Detailed Implementation
[0019] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0020] Reference Figures 1-4As shown, this utility model provides a technical solution: a dual-drive device for a four-roll plate rolling machine, including a plate rolling machine body 1. A lubricating oil tank 2 is fixedly connected to the surface of the plate rolling machine body 1. A connecting chamber 3 is connected to the surface of the lubricating oil tank 2. A plurality of oil dripping pipes 4 are connected to one side of the connecting chamber 3. The oil dripping pipes 4 are located above the drive shaft of the plate rolling machine body 1, achieving precise and uniform lubrication of key friction parts of the drive shaft, reducing the wear rate of components, improving transmission accuracy, and dynamically adjusting the amount of oil dripping according to the real-time working conditions of the drive shaft, reducing lubricating oil waste, reducing equipment energy consumption, reducing downtime due to malfunctions, and reducing the failure rate. A plurality of oil dripping pipes 4 are fixedly connected to one side of the lubricating oil tank 2. A servo motor 5 is connected to a lead screw 6 at its output end. A threaded cylinder 7 is threaded onto the arc surface of the lead screw 6. An adjusting plate 8 is fixedly connected to one end of the threaded cylinder 7. The adjusting plate 8 is located above the connecting chamber 3. The servo motor 5 drives the lead screw 6 to rotate, causing the threaded cylinder 7 and the adjusting plate 8 to move linearly. By adjusting the area of the connecting chamber 3 covered by the adjusting plate 8, the oil output of the drip pipe 4 is dynamically adjusted to adapt to the lubrication requirements of the drive shaft under different speeds and loads. This avoids the situation of insufficient lubrication under heavy loads or excessive lubrication under light loads caused by the traditional fixed oil output. A groove is opened on the surface of the lubricating oil tank 2. A cover plate 9 is slidably connected to the inner wall of the groove of the lubricating oil tank 2. One side of the cover plate 9 is fixedly connected to... A fixed rod 10 is provided, with a limit frame 11 slidably connected to the arc surface of the fixed rod 10. A mounting plate 12 is fixedly connected to one side of the lubricating oil tank 2, and a limit hole is provided on the surface of the mounting plate 12. The cover plate 9 can be quickly opened or closed by sliding along the slide groove, solving the problem of cumbersome disassembly of the traditional bolt-fixed cover plate 9. The limit frame 11 cooperates with the limit hole of the mounting plate 12 to lock the position of the cover plate 9, preventing the cover plate 9 from loosening due to vibration of the plate rolling machine. A spring 13 is sleeved on the arc surface of the fixed rod 10, and the two ends of the spring 13 are fixedly connected to the limit frame 11 and the lubricating oil tank 2 respectively. The preload of the spring 13 makes the limit frame 11 always tend to fit against the mounting plate 12. After the cover plate 9 is closed, it can automatically... The moving clip enters the limiting hole, eliminating the need for manual fixing and improving operational efficiency. One end of the fixing rod 10 is fixedly connected to a stop 14, which limits the maximum sliding distance of the limiting frame 11, preventing it from falling off the fixing rod 10 and ensuring the integrity of the locking mechanism of the cover plate 9. A sealing gasket 15 is fixedly connected to the surface of the cover plate 9, filling the gap between the cover plate 9 and the lubricating oil tank 2 and preventing external dust and moisture from entering, thus ensuring the purity of the lubricating oil. The adjusting plate 8 is slidably connected to the inner wall of the lubricating oil tank 2. The sliding fit between the adjusting plate 8 and the inner wall of the tank limits its radial sway during movement, ensuring the control accuracy of the shielding area of the connecting tank 3, thereby ensuring the stability of the oil dripping volume.
[0021] Working principle: When the plate rolling machine body 1 is running, the lubricating oil in the lubricating oil tank 2 is delivered to the dripping pipe 4 through the connecting chamber 3. The dripping pipe 4 is located above the drive shaft, which can directly and precisely lubricate the key friction parts of the drive shaft, reduce component wear, and improve transmission accuracy. At the same time, according to the real-time working conditions such as different speeds and loads of the drive shaft, the servo motor 5 on one side of the lubricating oil tank 2 drives the lead screw 6 to rotate, which drives the threaded cylinder 7 and the adjusting plate 8 located above the connecting chamber 3 to move linearly. By changing the covering area of the connecting chamber 3 by the adjusting plate 8, the oil output of the dripping pipe 4 is dynamically adjusted to avoid insufficient lubrication under heavy load or excessive lubrication under light load. When it is necessary to add lubricating oil to the lubricating oil tank 2, the limit bracket 11 is pulled to disengage it from the limit hole on the mounting plate 12, and the cover plate 9 can then slide along the groove on the surface of the lubricating oil tank 2. After filling, release the limiting frame 11. The spring 13 sleeved on the arc surface of the fixing rod 10, due to the pre-tightening force, causes the limiting frame 11 to fit against the mounting plate 12, driving the cover plate 9 to slide and close along the slide groove. The limiting frame 11 automatically engages with the limiting hole, locking the position of the cover plate 9 and preventing the cover plate 9 from loosening due to vibration of the plate rolling machine. The stop block 14 at one end of the fixing rod 10 can limit the maximum sliding distance of the limiting frame 11 to prevent it from falling off. The sealing gasket 15 on the surface of the cover plate 9 can fill the gap between the cover plate 9 and the lubricating oil tank 2, blocking external dust and moisture from entering and ensuring the purity of the lubricating oil. In addition, the adjusting plate 8 is slidably connected to the inner wall of the lubricating oil tank 2, which can limit the radial shaking of the adjusting plate 8 when it moves, ensuring the control accuracy of the shielding area of the connecting chamber 3, thereby ensuring the stability of the oil dripping volume and ensuring the overall efficiency and reliability of the device.
[0022] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A dual-drive device for a four-roll plate bending machine, characterized in that, The plate rolling machine includes a plate rolling machine body (1), a lubricating oil tank (2) is fixedly connected to the surface of the plate rolling machine body (1), a connecting chamber (3) is connected to the surface of the lubricating oil tank (2), and a number of oil dripping pipes (4) are connected to one side of the connecting chamber (3), and the oil dripping pipes (4) are located above the drive shaft of the plate rolling machine body (1).
2. The dual-drive device for a four-roll plate bending machine according to claim 1, characterized in that: A servo motor (5) is fixedly connected to one side of the lubricating oil tank (2). A lead screw (6) is fixedly connected to the output end of the servo motor (5). A threaded cylinder (7) is threadedly connected to the arc surface of the lead screw (6). An adjusting plate (8) is fixedly connected to one end of the threaded cylinder (7). The adjusting plate (8) is located above the connecting tank (3).
3. The dual-drive device for a four-roll plate bending machine according to claim 1, characterized in that: The surface of the lubricating oil tank (2) is provided with a sliding groove. A cover plate (9) is slidably connected to the inner wall of the sliding groove of the lubricating oil tank (2). A fixing rod (10) is fixedly connected to one side of the cover plate (9). A limit frame (11) is slidably connected to the arc surface of the fixing rod (10). A mounting plate (12) is fixedly connected to one side of the lubricating oil tank (2). A limit hole is provided on the surface of the mounting plate (12).
4. The dual-drive device for a four-roll plate bending machine according to claim 3, characterized in that: The arc surface of the fixing rod (10) is fitted with a spring (13), and the two ends of the spring (13) are fixedly connected to the limiting frame (11) and the lubricating oil tank (2) respectively.
5. The dual-drive device for a four-roll plate bending machine according to claim 4, characterized in that: A stop (14) is fixedly connected to one end of the fixing rod (10).
6. The dual-drive device for a four-roll plate bending machine according to claim 3, characterized in that: A sealing gasket (15) is fixedly connected to the surface of the cover plate (9).
7. The dual-drive device for a four-roll plate bending machine according to claim 2, characterized in that: The adjusting plate (8) is slidably connected to the inner wall of the lubricating oil tank (2).