Multi-dimensional modularized rolled plate direct drive assembly

Abstract

The utility model provides a multi-dimensional modularized plate rolling direct-drive assembly which comprises a machine tool, an upper working roller and at least one lower working roller are rotationally arranged on the machine tool, a direct-drive speed reducer is hung on the machine tool, the output end of the direct-drive speed reducer is connected with the upper working roller, and the input end of the direct-drive speed reducer is connected with an integrated drive device through a cross-dimensional universal coupling. A power input line is formed between the cross-dimension universal coupling and the direct-driven speed reducer, a transmission output line is formed between the direct-driven speed reducer and the upper working roller, and an angle of 90 degrees + / -50 degrees is formed between the overlook projection extension line of the power input line and the overlook projection extension line of the transmission output line. The cross-dimension universal coupling is matched with the direct-drive speed reducer, so that the separation of suspension and ground arrangement is realized, the vibration influence is reduced, and the driving stability and flexibility are improved. A transmission angle and a swinging angle are not overlapped, so that safe operation is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a plate rolling machine, particularly a multi-dimensional modular direct-drive plate rolling assembly. Background Technology

[0002] Currently, the main feature of large-scale plate rolling machines is that the upper working roller is driven by a hydraulic motor and a reducer. This type of hydraulically driven plate rolling machine has the following problems: (1) Hydraulic drive has a large energy waste: Since the hydraulic drive system converts electrical energy into mechanical energy, then mechanical energy into liquid pressure energy, and then liquid pressure energy back into mechanical energy, this back-and-forth energy conversion results in a loss of at least 10% of energy. (2) Waiting time during plate rolling wastes energy: During a shift, the hydraulic system of the plate rolling machine needs to work continuously. During the waiting time for loading and inspecting the workpiece, it still needs to run idle and consume energy. (3) Industrial chillers consume energy: Many plate rolling machines are also equipped with special industrial chillers to cool the hydraulic oil, which causes additional energy consumption. (4) The working efficiency of the plate rolling machine is not high: The plate rolling speed of the current hydraulically driven plate rolling machine can only reach the range of 0-5 m / min, and the efficiency is difficult to improve. (5) Environmental pollution: The hydraulic oil used in the main drive hydraulic system needs to be replaced regularly, which consumes resources and causes certain pollution to the environment. (6) Difficult installation and maintenance: The oil pipes of the hydraulic system are suspended at the end of the work roller, which makes installation and maintenance difficult and unsafe.

[0003] Traditional small and medium-sized plate rolling machines, with the main body, universal coupling, reducer, and motor installed in a straight line, are suitable for mechanical plate rolling machines. These machines are relatively long and occupy a large area. However, with the increasing thickness of steel plates, this structure is unsuitable for large plate rolling machines handling 100mm thick workpieces. Currently, the lifting distance of the upper working roller in large plate rolling machines reaches 850mm, requiring a universal coupling of over 4 meters to barely accommodate the horizontal swing angle of the upper roller. Since large plate rolling machines use hydraulic pressure, the upper roller will tilt during adjustment and tapering operations, sometimes reaching extreme swing angles of 4-8 degrees, which can damage the transmission machinery. Furthermore, the torque required for the upper working roller in ultra-large plate rolling machines often exceeds 2000kNm. In fact, when the required torque for the upper roller reaches 600kNm (in the design of even larger plate rolling machines), it is difficult to find a suitable universal coupling. The following structural analysis further illustrates this point: Figure 15The large-span coupling, high-torque reducer 3', and upper working roller 1' shown are installed on a straight line (or arranged in parallel). When the upper working roller 1' swings during operation or adjustment, an angle K' is generated between the extension line of the central axis of the upper working roller 1' and the horizontal line. This angle K' is consistent with the swing angle of the upper working roller 1'. An angle M' is generated between the schematic line 2' of the large-span coupling and the horizontal line. The final transmission angle of the large-span coupling is the sum of K' and M'. When the sum of K' + M' reaches or exceeds a certain value (safety threshold), the large-span coupling or other related parts will be damaged. Therefore, this structure is not suitable for use in large plate rolling machines.

[0004] In addition, there is a type of three-roll and four-roll plate rolling machine on the market that is directly driven by a motor. The characteristic of this machine structure is that the motor and reducer are suspended at the end of the upper working roll as the main drive; the reducer and small motor are on the lower working roll as auxiliary drive. Although it is energy-saving and efficient, the installation space of the drive part is limited and it is not suitable to use a large motor. The motor of this structure will increase the vibration of the main machine when it is running, making overhead maintenance difficult and unsafe. Moreover, the plate rolling machine of this technology is too long and wastes factory space.

[0005] For example, Chinese patent publication number CN1903470A describes a structure consisting of a lower roller reducer, a universal coupling, and a reducer. This utility model is suitable for the lower roller drive of a mechanical plate rolling machine. Currently, the mainstream large plate rolling machine uses an upper working drive, where the upper working roller moves up and down and oscillates with a large stroke. This process generates a large angle, which can damage the transmission, making this technology unusable. Moreover, this technology would result in an excessively long machine size, wasting factory space. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a multi-dimensional modular roll-to-roll direct-drive assembly.

[0007] The objective of this utility model can be achieved through the following technical solution: A multi-dimensional modular direct-drive plate rolling assembly includes a machine tool, on which an upper working roller and at least one lower working roller are rotatably arranged, forming a plate rolling station between the upper and lower working rollers. A direct-drive reducer is suspended on the machine tool, the output end of the direct-drive reducer is connected to the upper working roller, and the input end of the direct-drive reducer is connected to an integrated drive device through a cross-dimensional universal coupling. The integrated drive device is located on one or both sides of the top-view projection line of the upper working roller. A power input line is formed between the cross-dimensional universal coupling and the direct-drive reducer, and a transmission output line is formed between the direct-drive reducer and the upper working roller. The top-view projection extension line of the power input line and the top-view projection extension line of the transmission output line form an angle of 90 degrees ± 50 degrees.

[0008] In the aforementioned multi-dimensional modular direct-drive assembly for rolled plates, the integrated drive device is connected to one end of the cross-dimensional universal coupling via a power output shaft, and the other end of the cross-dimensional universal coupling is connected to the direct-drive reducer via a power input shaft. The central axis of the power input shaft is the power input line, the central axis of the output end of the direct-drive reducer is the transmission output line, and the angle between the central axis of the cross-dimensional universal coupling and the power input line is the transmission angle.

[0009] In the aforementioned multi-dimensional modular roll plate direct drive assembly, the integrated drive device includes a motor, which is connected to the cross-dimensional universal coupling via a drive coupling, and a brake is provided on the outer periphery of the drive coupling.

[0010] In the aforementioned multi-dimensional modular direct-drive assembly for rolled plates, the integrated drive device includes a motor and a drive reducer. The motor is connected to the drive reducer via a drive coupling, and the drive reducer is connected to a cross-dimensional universal coupling via the power output shaft. A brake is provided on the outer periphery of the drive coupling.

[0011] In the aforementioned multi-dimensional modular roll plate direct drive assembly, at least one motor is connected to a drive reducer, and the drive reducer is connected to the direct drive reducer through one or two of the aforementioned cross-dimensional universal couplings.

[0012] In the aforementioned multi-dimensional modular direct-drive roll plate assembly, the machine tool includes a connecting beam at the bottom, on which a reversing side frame and a transmission side frame are erected. The upper work roll and the lower work roll are arranged between the reversing side frame and the transmission side frame. Both ends of the upper and lower work rolls are connected to bearing seats to form rotation. A reversing device is connected to the reversing side of the upper work roll. A reversing side cylinder is provided on the reversing side frame, and a transmission side cylinder is provided on the transmission side frame to connect to the transmission end of the upper work roll.

[0013] In the aforementioned multi-dimensional modular direct-drive roll assembly, a torque limiting guide groove is provided on the transmission side frame, a torque limiting seat / arm is installed in the torque limiting guide groove, the torque limiting seat / arm is connected to one end of the upper work roller, the direct-drive reducer is fixed on the torque limiting seat / arm, and the output end of the direct-drive reducer is connected to the end of the upper work roller along the same axis.

[0014] In the aforementioned multi-dimensional modular direct-drive roll assembly, the center of the torque limiting seat / arm has a circular hole, the end of the upper working roller passes through the circular hole, several guide plates are attached to the outer periphery of the torque limiting seat / arm, the end of the upper working roller is fixedly connected to the output end of the direct-drive reducer through a connecting structure, and the housing of the direct-drive reducer is fixedly connected to the torque limiting seat / arm through several bolts.

[0015] In the aforementioned multi-dimensional modular direct-drive roll assembly, a left guide rail is provided on the reversing side frame, and a right guide rail is provided on the transmission side frame. The bearing seat at the left end of the lower working roll is slidably connected to the left guide rail, and the bearing seat at the right end of the lower working roll is slidably connected to the right guide rail. The bearing seat of the lower working roll is driven by a horizontal moving hydraulic cylinder.

[0016] In the aforementioned multi-dimensional modular roll plate direct drive assembly, the cross-dimensional universal coupling includes two sets of universal couplings and an intermediate connecting device connected to the two universal couplings. The intermediate connecting device is installed on the lifting device; the intermediate connecting device is a bevel gear or a connecting shaft.

[0017] Compared with existing technologies, this multi-dimensional modular roll-to-roll direct-drive assembly has the following advantages:

[0018] This technology solves the problem of direct-drive motors in large plate rolling machines: Currently, plate rolling machines worldwide cold-roll thicknesses up to 350mm. These large, three-roll, horizontally adjustable plate rolling machines, capable of rolling plates larger than 200mm, all use hydraulic main drives. This technology, through a combination of suspended and ground-mounted assembly methods and a lateral drive system, makes direct-drive motors for ultra-large plate rolling machines a reality. This technology not only saves energy but also facilitates installation and maintenance, and ensures safe operation through speed and torque control.

[0019] 2. Reduced equipment manufacturing and operating costs: Traditional large three-roll plate bending machines use hydraulics as the main drive for the upper roll. This solution uses a direct motor drive, which eliminates the manufacturing and maintenance costs of the traditional large hydraulic system, saves a lot of hydraulic oil, and greatly improves the working environment.

[0020] 3. Easier Installation and Debugging: The assembly method combines suspended and ground-mounted components, modularizing the drive components. The suspension only consists of the reducer body, and the suspension part is connected only at one end of the cross-dimensional universal coupling. This reduces the debugging problems of traditional hydraulic systems, making mechanical debugging simpler. The integrated drive unit can be installed and debugged on the ground, which is very convenient. This modular design also facilitates maintenance and replacement.

[0021] 4. Flexible Rolling Speed ​​Adjustment: Due to the direct drive of the motor in the large plate rolling machine, the rolling speed is controlled by frequency converter. When rolling thin plates, the rotational speed of the plate rolling machine can be increased, significantly improving the production efficiency of workpieces with a thickness less than the rated plate thickness. Utilizing a frequency converter to adjust the motor's speed and torque control makes the equipment flexible, easy to operate, and improves efficiency.

[0022] 5. Enhanced safety in equipment maintenance: Compared to traditional large three-roll plate bending machines, this technology's suspension system only includes the reducer body, eliminating traditional hydraulic components and significantly reducing the amount of maintenance required for suspension parts. Moreover, most mechanical maintenance is carried out on the ground, improving the safety of equipment maintenance.

[0023] 6. Flexible installation method is conducive to factory space layout: The suspended direct drive reducer is connected to the ground-mounted integrated drive unit by a cross-dimensional universal coupling. The integrated drive unit can be adjusted in position according to the existing space. For places with requirements in the length direction, the integrated drive unit is installed on the side of the top working projection line. For places with large space in the length direction, the integrated drive unit can be installed in the axial direction of the upper roller, leaving the side space for storing workpieces or other uses. In this way, the factory space can be used reasonably according to the actual situation.

[0024] 7. Reduced vibration of the plate rolling machine: The use of a cross-dimensional universal coupling connects the suspended direct-drive reducer to the ground-mounted integrated drive device. By separating the suspended and ground-mounted components, the power source is disconnected from the main body, reducing the impact of the power source during operation, start-up, and shutdown, thus reducing the vibration of the plate rolling machine. At the same time, it minimizes the impact of the vibration of the integrated drive device on the upper work roller, ensuring the stability of the rolling process.

[0025] 8. Integrated drive unit can save a significant amount of energy: The main drive power of a large plate rolling machine often reaches several hundred kilowatts. Most of its operation involves rolling workpieces much smaller than their rated size. Traditional plate rolling machines require all main drive motors to be started for normal operation, regardless of the size of the plate being rolled, resulting in substantial energy waste and impacting the power grid during startup. This technology's integrated drive unit solves this problem. The integrated drive unit consists of multiple motors and can utilize a clutch to select the appropriate motor based on the workpiece size, effectively controlling energy output and thus saving energy.

[0026] 9. Stable machine operation: The two frames are fastened to both ends of the bed to form a whole, which has good stability and effectively supports the overhead suspension of the high torque reducer, ensuring stable machine operation; the cooperation between the torque limiting seat / arm and the torque limiting guide groove restricts the rotation of the direct drive reducer housing, making its drive stable and its movement free, thus achieving high rolling accuracy.

[0027] 10. Facilitates equipment design: The integrated drive unit supports single motors or multi-motor combinations, as well as combinations of motors of different sizes. This is beneficial for accurate design calculations and motor selection. Especially for large or high-power equipment, the power output can be optimized by coordinating multiple motors, solving problems such as insufficient power and power redundancy of a single motor.

[0028] In summary, the multi-dimensional modular direct-drive coil assembly solution, through its innovative design, not only ensures safe and stable operation but also saves energy and improves system efficiency, flexibility, and maintainability. It can meet various working conditions and is widely applicable to the modern coil processing field. Attached Figure Description

[0029] Figure 1 This is a top view of the arrangement scheme one of the motor and drive reducer in this utility model.

[0030] Figure 2 for Figure 1 The main view structure diagram.

[0031] Figure 3 This is a diagram of the drive structure of the upper working roller in this utility model.

[0032] Figure 4 This is a top view of the direct drive arrangement scheme one of the motors in this utility model.

[0033] Figure 5 This is a top view of the second direct-drive motor arrangement scheme in this utility model.

[0034] Figure 6 This is a diagram of the drive structure of the four-drive confluence plate rolling machine in this utility model.

[0035] Figure 7 This is a top view of the arrangement of the motor and drive reducer in this utility model.

[0036] Figure 8 This is a schematic diagram of the dual-output drive reducer of this utility model.

[0037] Figure 9 This is a front sectional view of the assembly of the middle limit torsion seat / arm of this utility model.

[0038] Figure 10 This is a side sectional view of the assembly of the limiting torsion seat / arm of this utility model.

[0039] Figure 11 This is a structural diagram of the direct drive reducer with adjustable input shaft position according to this utility model.

[0040] Figure 12 This is a structural diagram of a single drive reducer composed of multiple reducers according to this utility model.

[0041] Figure 13 This is a schematic diagram illustrating the principle of vertical drive forming the transmission angle in this utility model.

[0042] Figure 14 This is a three-dimensional schematic diagram of the vertical drive forming the transmission angle of this utility model.

[0043] Figure 15 This is a schematic diagram of an installation with an additional axial bend.

[0044] Figure 16 This is a top view schematic diagram of Embodiment 2 of the present invention.

[0045] Figure 17 This is a front view schematic diagram of Embodiment 2 of the present invention.

[0046] Figure 18a This is a schematic diagram showing that the included angle between the power input shaft and the power output shaft in this invention is 75°.

[0047] Figure 18b This is a schematic diagram showing that the included angle between the power input shaft and the power output shaft is 90° in this invention.

[0048] Figure 18c This is a schematic diagram showing that the included angle between the power input shaft and the power output shaft in this invention is 120°.

[0049] Figure 18d This is a schematic diagram showing that the included angle between the power input shaft and the power output shaft is 180° in this invention.

[0050] In the diagram, 1. Upper working roller; 2. Lower working roller; 3. Direct drive reducer; 4. Power input shaft; 5. Cross-dimensional universal coupling; 6. Power output shaft; 7. Motor; 8. Drive coupling; 9. Brake; 10. Drive reducer; 11. Connecting beam; 12. Reversing side frame; 13. Transmission side frame; 14. Reversing device; 15. Reversing side cylinder; 16. Transmission side cylinder; 17. Bearing housing; 18. Torque limiting seat / arm; 19. Guide plate; 20. Key; 21. Horizontal movement cylinder; 22. Lifting device; 23. Intermediate connecting device. Detailed Implementation

[0051] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0052] Example 1

[0053] like Figures 1 to 3As shown, this multi-dimensional modular direct-drive plate rolling assembly includes a machine tool. An upper work roller 1 and at least one lower work roller 2 are rotatably arranged on the machine tool, forming a plate rolling station between them. A direct-drive reducer 3 is suspended on the machine tool. Specifically, the direct-drive reducer 3 is a high-torque reducer. The output end of the direct-drive reducer 3 is connected to the upper work roller 1, and the input end of the direct-drive reducer 3 is connected to an integrated drive device via a cross-dimensional universal coupling 5. The integrated drive device is located on one or both sides of the top-view projection line of the upper work roller 1. The transdimensional universal coupling 5 has a relatively long length, thus enabling large-span power transmission. A power input line is formed between the transdimensional universal coupling 5 and the direct drive reducer 3, and a transmission output line is formed between the direct drive reducer 3 and the upper working roller 1. The top-view projection line of the central axis of the transdimensional universal coupling 5 and the top-view projection line of the center line of the upper working roller 1 form an angle of 90 degrees ± 50 degrees. The transmission angle formed between the power input shaft 4 of the upper direct drive reducer 3 and the transdimensional universal coupling 5 is less than the safety critical angle.

[0054] Under the premise of absolute accuracy and ideal operating conditions, the power input line here is the center line of the input shaft of the direct drive reducer 3, and the transmission output line is the center line of the output shaft of the direct drive reducer 3. That is, the top view projection line of the center line of the output shaft of the direct drive reducer 3 and the top view projection line of the center line of the input shaft of the direct drive reducer 3 form a perpendicular angle or an angle with a deviation of no more than ±50 degrees from the perpendicular line.

[0055] The cross-dimensional universal coupling 5 transmits rotational power to the direct-drive reducer 3 along the power input line, and the direct-drive reducer 3 transmits rotational power to the upper work roller 1 along the transmission output line. The direct-drive reducer 3 can be a steering (reducer), and the reduction ratio of the steering (reducer) is preferably 4 or higher to reduce the size of the cross-dimensional universal coupling 5; the output shaft of the direct-drive reducer 3 can be a hollow shaft.

[0056] In order to comply with safety standards and achieve normal transmission between the cross-dimensional universal coupling 5 and the upper working roller 1, it is necessary to control the transmission angle between the cross-dimensional universal coupling 5 and the upper working roller 1 within a certain range during the dynamic operation of the upper working roller 1. The maximum angle value that can be achieved under normal transmission operation is the safety critical angle. This safety critical angle is usually determined by experimental data based on different specifications and models of equipment and different working conditions.

[0057] Preferably, the integrated drive device is connected to one end of the cross-dimensional universal coupling 5 via the power output shaft 6, and the other end of the cross-dimensional universal coupling 5 is connected to the direct drive reducer 3 via the power input shaft 4. The central axis of the power input shaft 4 is the power input line, the central axis of the output end of the direct drive reducer 3 is the transmission output line, and the angle between the central axis of the cross-dimensional universal coupling 5 and the power input line is the transmission angle.

[0058] like Figure 5 As shown, if the upper working roller 1 oscillates slightly during operation or debugging, causing the central axis of the upper working roller 1 to deviate and produce a tilt angle, but because the power input shaft 4 is connected perpendicularly or nearly perpendicularly to the upper working roller 1, the tilt angle of the upper working roller 1 is not in the same plane as the transmission angle. Therefore, the tilt angle caused by the movement is not superimposed on the angle of the transmission angle, so that the transmission angle of the cross-dimensional universal coupling 5 remains constant, thus ensuring the safety and stability of the transmission.

[0059] The specifications of the cross-dimensional universal coupling 5 can be very small. This can be explained by theoretical calculation: The required output torque of the direct drive reducer 3 is set to N, the input torque of the direct drive reducer 3 is set to n, and the reduction ratio of the direct drive reducer 3 is set to I1. Ignoring losses, the torque at the input end of the direct drive reducer 3 is n = N / I1. If the reduction ratio I1 of the direct drive reducer 3 is designed to be 110, the rated torque of the cross-dimensional universal coupling 5 can be greater than 1 / 110 of the torque N.

[0060] Preferably, the integrated drive unit includes a motor 7, which is connected to a cross-dimensional universal joint via a drive coupling 8.

[0061] A brake 9 is installed on the outer periphery of the drive coupling 8 and the coupling 5. The motor 7 can be driven by a frequency converter. The electrical control system can control the rolling speed, torque, and rotation position and ensure smooth start-up. The electrical system can calculate the rolling speed of the steel plate and control the torque according to the plate thickness and process requirements to ensure the safe operation of the plate rolling machine. The function of the torque limiting structure can be replaced by electrical control.

[0062] This plan has several specific layout options: 1. As... Figure 4 As shown, two motors 7 and two cross-dimensional universal couplings 5 ​​are used. The direct-drive reducer 3 has one input end. The two sets of motors 7 and cross-dimensional universal couplings 5 ​​are symmetrically arranged on both sides of the direct-drive reducer 3. The power input shafts 4 on both sides are connected to a common input end. This structure utilizes the space on both sides to solve the problem of insufficient space caused by installing large plate rolling machines on one side. II. As Figure 5 As shown, two motors 7 and two cross-dimensional universal couplings 5 ​​are used. The direct drive reducer 3 has two input ends. The two sets of motors 7 and cross-dimensional universal couplings 5 ​​are symmetrically arranged on both sides of the direct drive reducer 3. The power input shafts 4 on both sides are connected to one input end in a one-to-one correspondence. This structure utilizes the space on both sides for installation and solves the problem of insufficient power of one motor 7.

[0063] This structure uses a motor 7 for direct drive, eliminating the need for a drive reducer 10 and simplifying the structure. However, the disadvantage is that the rotation speed of the cross-dimensional universal coupling 5 is relatively fast. To reduce the speed, it is better to use an 8-pole or 10-pole motor 7, or other types of motor 7. An inverter can be installed in the electrical system to adjust the speed and control the torque of the motor 7 through the inverter, so as to ensure the safe operation of the equipment.

[0064] The brake 9 can achieve precise positioning of the upper working roller 1 during the rolling process, thereby controlling the rolling position of the sheet metal.

[0065] Preferably, the integrated drive device includes a motor 7 and a drive reducer 10. The motor 7 is connected to the drive reducer 10 through a drive coupling 8. The drive reducer 10 is connected to a cross-dimensional universal coupling 5 through a power output shaft 6. A brake 9 is provided on the outer periphery of the drive coupling 8.

[0066] This plan has several specific layout options: 1. As... Figure 1 As shown, a motor 7, a drive reducer 10, and a cross-dimensional universal coupling 5 are sequentially connected and arranged on one side of the direct-drive reducer 3, with the output direction of the motor 7 parallel to the output direction of the drive reducer 10. Alternatively, using the above scheme, multiple sets of sequentially connected motors 7, drive reducers 10, and cross-dimensional universal couplings 5 ​​can be formed. The direct-drive reducer 3 has multiple input ends, with each set connected to one input end, forming an N-drive confluence-driven plate rolling machine, such as a three-drive confluence-driven plate rolling machine or a four-drive confluence-driven plate rolling machine (e.g.,...). Figure 6 (As shown). III. As Figure 7 As shown, at least two motors 7 are connected to the same drive reducer 10, and the output direction of the motors 7 is parallel to the output direction of the drive reducer 10. The drive reducer 10 is connected to the direct drive reducer 3 via a cross-dimensional universal coupling 5. The two sides of the direct drive reducer 3 are symmetrically arranged, although it can also be arranged on only one side. IV. As Figure 7 As shown, at least two motors 7 are connected to the same drive reducer 10, and the output direction of the motors 7 is perpendicular to the output direction of the drive reducer 10. The drive reducer 10 is connected to one side of the direct drive reducer 3 via a cross-dimensional universal coupling 5, or it can be arranged symmetrically on both sides. This structure solves the problem of insufficient power from a single motor 7. The drive reducer 10 with this structure can be equipped with 1 to 16 input shafts, driven by 1 to 16 motors 7.

[0067] Preferably, at least one motor 7 is connected to a drive reducer 10, and the drive reducer 10 is connected to a direct drive reducer 3 via one or two cross-dimensional universal couplings 5.

[0068] like Figure 8As shown, a motor 7 is connected to a drive reducer 10, which in turn connects to two interdimensional universal couplings 5, forming a dual-output torque reducer. This reducer can be used in four-drive confluence plate rolling machines. This structure allows for the use of torque limiters before and after the interdimensional universal couplings 5. Furthermore, two reduction mechanisms are installed within the housing of the same drive reducer 10, each driven by its own motor 7; that is, two motors 7 are connected to the same drive reducer 10.

[0069] Preferred, such as Figure 2 As shown, the machine tool includes a connecting beam 11 at the bottom, with a reversing side frame 12 and a transmission side frame 13 erected on the connecting beam 11. An upper working roller 1 and a lower working roller 2 are arranged between the reversing side frame 12 and the transmission side frame 13. Both ends of the upper working roller 1 and the lower working roller 2 are connected to bearing seats to form rotation. A reversing device 14 is connected to the reversing side of the upper working roller 1. A reversing side cylinder 15 connected to the reversing device 14 is provided on the reversing side frame 12. A transmission side cylinder 16 connected to the transmission end of the upper working roller 1 is provided on the transmission side frame 13.

[0070] In this embodiment, the upper working roller 1 is horizontally positioned above, and the lower working roller 2 is horizontally positioned below. The horizontal slit between the upper working roller 1 and the lower working roller 2 is the plate rolling station. The reversing side cylinder 15 is located at the lower part of the reversing side frame 12 and below the upper working roller 1. The reversing device 14 is installed on the bearing seat at the left end of the upper working roller 1. The transmission side cylinder 16 is located at the upper part of the transmission side frame 13 and above the upper working roller 1. The transmission side cylinder 16 is connected to the bearing seat 17 at the right end of the upper working roller 1. Of course, the installation positions of the reversing side cylinder 15 and the transmission side cylinder 16 can be changed according to requirements, as long as pressure can be applied to the upper working roller 1.

[0071] Preferred, such as Figure 3 As shown, a torque-limiting guide groove is formed on the head-side frame 12 or the transmission-side frame 13. A torque-limiting seat / arm 18 is installed in the torque-limiting guide groove. The torque-limiting seat / arm 18 can move up and down or swing within the torque-limiting guide groove, but cannot rotate. The torque-limiting seat / arm 18 is connected to one end of the upper work roller 1. The direct-drive reducer 3 is fixedly mounted on the outer surface of the torque-limiting seat / arm 18, so that the direct-drive reducer 3 is in a suspended state. The output end of the direct-drive reducer 3 is fixedly connected to the end of the upper work roller 1 along the same axis.

[0072] The torque limiting seat / arm 18 is an auxiliary component for the suspension installation of the direct drive reducer 3. The torque limiting seat / arm 18 can be designed as part of the housing of the direct drive reducer 3, that is, the housing of the direct drive reducer 3 with torque limiting function is embedded in the torque limiting guide groove, and the torque limiting guide groove restricts the housing of the direct drive reducer 3 from rotating.

[0073] Preferred, such as Figures 9 to 10As shown, a circular hole is opened in the center of the torsion limiting seat / arm 18, and the end of the upper working roller 1 passes through the circular hole. Several guide plates 19 are attached to the outer periphery of the torsion limiting seat / arm 18. The guide plates 19 can be made of copper alloy, bakelite board, or other wear-resistant materials. The use of guide plates 19 can effectively reduce the sliding friction between the torsion limiting seat / arm 18 and the torsion limiting guide groove, further optimize the fit between the torsion limiting seat / arm 18 and the torsion limiting guide groove, and ensure that the housing of the direct drive reducer 3 does not rotate. The end of the upper working roller 1 is fixedly connected to the output end of the direct drive reducer 3 through a connecting structure. In this scheme, the connecting structure specifically adopts polygonal shafts such as splined shafts and square column shafts. The housing of the direct drive reducer 3 is fixedly connected to the torsion limiting seat / arm 18 by several bolts.

[0074] Preferably, a left guide rail is provided on the head-side frame 12, and a right guide rail is provided on the transmission-side frame 13. The bearing seat at the left end of the lower working roller 2 is slidably connected to the left guide rail, and the bearing seat at the right end of the lower working roller 2 is slidably connected to the right guide rail. The bearing seat of the lower working roller 2 is driven by the horizontal moving cylinder 21.

[0075] A smaller motor 7 and a reducer can be installed at the shaft end of the lower work roller 2 for auxiliary drive. The small motor 7 can be a servo motor 7 or a frequency converter motor 7; a small hydraulic motor can also be used as the auxiliary drive. The hydraulic power source of the small hydraulic motor can be drawn from the pressing hydraulic system, and its speed can be controlled synchronously by a servo valve.

[0076] Start the horizontal moving cylinder 21 to extend and retract the drive rod, which drives the bearing seat at the left end of the lower working roller 2 to slide back and forth along the left guide rail, and the bearing seat at the right end of the lower working roller 2 to slide back and forth along the right guide rail, thereby realizing the horizontal position adjustment of the lower working roller 2. The lower working roller 2 cooperates with the upper working roller 1 to adjust the plate rolling position.

[0077] like Figure 11 As shown, the direct drive reducer 3 uses a reducer with position adjustment in the final stage. The final stage has multiple bevel gears or sprocket mechanisms. In this example structure, the distance between the output center line and the input center line is L. The value of L can be configured as needed to place the power input shaft 4 of the direct drive reducer 3 in a suitable position. This allows the drive reducer 10 to be installed in a better position, which is convenient for the installation and arrangement of the plate rolling machine.

[0078] In this solution, the cross-dimensional universal coupling 5 used in horizontally adjustable or upper three-roll plate bending machine applications can be specifically selected from retractable cross type, retractable ball cage type, retractable ball fork type, etc.; in four-roll plate bending machine applications, the cross-dimensional universal coupling 5 can be slightly adjusted at least in the length direction and radial direction.

[0079] like Figure 12As shown, the drive reducer 10 specifically adopts a small torque reducer. Specifically, three reducers 10a are connected in series via a coupling 10b or an electromagnetic clutch to form a small torque reducer. This structure facilitates the installation and manufacture of the small torque reducer, and simplifies equipment layout and power selection. The small torque reducer can also be composed of 2 to 16 reducers of the same or different models and specifications. The small torque reducer can have 1 to 3 input shafts, and the combined small torque reducer outputs power through the output shaft.

[0080] In this scheme, all motors 7 can also be replaced with hydraulic motors. Although hydraulic motors do not have the energy-saving effect of direct drive motors 7, the advantage is that hydraulic motors and pipelines are fixedly installed on the ground, which reduces the difficulty of maintenance and improves safety.

[0081] Example 2

[0082] The structure and principle of this embodiment are basically the same as those of Embodiment 1, except that the structure is different in the following ways:

[0083] like Figure 16 and Figure 17 As shown, a three-roll plate rolling machine includes a machine tool, on which an upper working roll 1 and two lower working rolls 2 are rotatably arranged, forming a plate rolling station between the upper working roll 1 and the two lower working rolls 2. A direct drive reducer 3 is suspended on the machine tool, with the output end of the direct drive reducer 3 connected to the upper working roll 1 and the input end connected to an integrated drive device through a cross-dimensional universal coupling 5.

[0084] The cross-dimensional universal coupling 5 includes two sets of universal couplings and an intermediate connecting device 23 connecting the two universal couplings. The intermediate connecting device 23 is installed on the lifting device 22. The intermediate connecting device 23 is a bevel gear device, which has a built-in drive reducer 10. The motor 7 is connected to the drive reducer 10 through the drive coupling 8. The output shaft of the drive reducer 10 is connected to one end of the cross-dimensional universal coupling 5. A brake 9 is installed on the outer periphery of the drive coupling 8. The brake 9 can quickly brake the motor 7 and the drive reducer 10 in case of emergencies (such as equipment overload, failure, or emergency stop command) to avoid damage to mechanical parts or safety accidents caused by inertia. In heavy equipment such as plate rolling machines, the brake 9 can prevent uncontrolled movement caused by accidental power failure or operational errors, ensuring the safety of operators and equipment.

[0085] An integrated drive unit is fixedly installed at the rear end of the upper work roller 1, and one of the cross-dimensional universal couplings 5 ​​is coaxial (or parallel) with the top projection line of the center line of the upper work roller 1; the machine tool is equipped with a device to prevent the axis angle of the cross-dimensional universal coupling 5 from being too large. When the upper work roller 1 reaches or exceeds the middle position, the lifting device 22 rises to raise the position of the intermediate connecting device 23 installed on the lifting device 22, reducing the transmission angle of its cross-dimensional universal coupling 5, and ensuring that its transmission angle is less than the safety critical angle when the upper work roller has an additional angle.

[0086] Furthermore, the intermediate connecting device 23 can be a bevel gear or a connecting shaft. If the intermediate connecting device 23 is a connecting shaft, its connecting shaft connects two cross-dimensional universal couplings 5. At this time, the center line of the top view projection of the two cross-dimensional universal couplings 5 ​​is on or approximately on the same straight line. The length of this structure is very long.

[0087] Furthermore, if the lifting displacement of the upper working roller 1 is small or the input power required by the cross-dimensional universal coupling 5 is small, this design can omit the lifting device 22 and the bevel gear device 23, and the drive reducer 10 can be directly connected to the suspension direct drive reducer 3 through a cross-dimensional universal coupling 5.

[0088] Increasing the number of input shafts can reduce the selection specifications of the cross-dimensional universal coupling 5, while smaller specifications can select a cross-dimensional universal coupling that allows for a larger bending angle, which is beneficial to improving the vertical displacement of the upper working roller to meet the needs of the process.

[0089] Example 3

[0090] Based on Embodiment 1 and Embodiment 2, this embodiment is as follows:

[0091] A driving method for a multi-dimensional modular roll-to-roll direct-drive assembly includes the following steps:

[0092] S1. Start the horizontal moving cylinder 21 to drive the lower working roller 2 to move horizontally to the position required by the process. The upper working roller 1 rises, and the height is greater than the thickness of the workpiece to be rolled to facilitate feeding. Place the workpiece into the opening between the upper working roller 1 and the lower working roller 2 and align it to complete the feeding process.

[0093] S2. Drive the upper working roller 1 to press down and press the workpiece to the process position. Start the integrated drive device to drive the cross-dimensional universal coupling 5 to rotate in an orientation through the power output shaft 6. The cross-dimensional universal coupling 5 drives the direct drive reducer 3 to rotate in an orientation through the power input shaft 4. The direct drive reducer 3 reduces the speed to the required speed, driving the upper working roller 1 to rotate in an orientation. During the operation, the reversing side cylinder 15 and the transmission side cylinder 16 synchronously drive the upper working roller 1 to press down, performing symmetrical or asymmetrical rolling operations on the workpiece.

[0094] S3. The integrated drive device has several motors 7, which are controlled by the clutch or manually. When the thickness of the workpiece to be rolled is 30mm to 70mm, the clutch controls the activation of one motor 7. When the thickness of the workpiece to be rolled is 120mm to 180mm, the clutch controls the activation of three motors 7. When the thickness of the workpiece to be rolled is 220mm to 300mm, the clutch controls the activation of at least five motors 7.

[0095] S4. After the workpiece is rolled, the integrated drive device is turned off to stop the upper working roller 1. The transmission side cylinder 16 releases the right end of the upper working roller 1, and the reversing side cylinder 15 flips the reversing device 14 to remove the formed workpiece from the rolling station.

[0096] like Figure 13 As shown, the power input shaft 4 is perpendicularly connected to the upper working roller 1. When the upper working roller 1 is working or being adjusted, it will swing slightly, causing the central axis of the upper working roller 1 to deviate and produce a tilt angle. The power input shaft 4 only changes position slightly without bending. As a result, the tilt angle of the upper working roller 1 is not in the same plane as the transmission angle. Therefore, the tilt angle caused by the movement is not superimposed on the angle of the transmission angle. At this time, a cross-dimensional universal coupling 5 with a common shaft bend angle can be selected to ensure the safety and stability of the transmission.

[0097] like Figure 14 As shown, when rolling the cone, the process requires the upper working roller 1 to swing and tilt during operation, so that the center line 1a of the upper working roller 1 forms a swing angle K with the X line, the center line 5a of the cross-dimensional universal coupling 5 forms a transmission angle M with the Y line, and the top projection line of the X line and the top projection line of the Y line form a perpendicular angle or an angle with a deviation from the perpendicular line not greater than ±50 degrees. The optimal angle is 90°. At this time, the swing angle K and the transmission angle M are in different planes, so there is no superposition interference or the interference is small between the swing angle K and the transmission angle M, and the transmission angle M is less than the safety critical angle.

[0098] Specifically, the installation of the integrated drive unit on both sides of the projection line of the upper work roller avoids the superposition of the two angles, such as... Figure 15 The diagram shows an example of two angles superimposed on the upper working roller in a straight line. The large-span coupling, high-torque reducer 3', and upper working roller 1' are installed in a straight line (or arranged in parallel). When the upper working roller 1' swings during operation or adjustment, an angle K' is generated between the extended line of the central axis of the upper working roller 1' and the horizontal line. This angle K' is consistent with the swing angle of the upper working roller 1'. An angle M' is generated between the schematic line 2' of the large-span coupling and the horizontal line. The final transmission angle of the large-span coupling is the sum of K' and M'. When the sum of K' + M' reaches or exceeds a certain value (safety threshold), it cannot be used. Therefore, it should be installed vertically or nearly vertically (e.g., Figure 16 and Figure 17 This is beneficial for the distribution of the reduction ratio between the integrated drive unit 10 and the direct drive reducer 3, which is beneficial for its application in ultra-large plate rolling machines, and also for the layout of equipment and the rational use of the factory building.

[0099] This solution can be used to modify traditional hydraulically driven plate rolling machines: remove the original hydraulic motor reducer, and install a high-torque reducer in the original position in a suspended manner. Install motor 7 or motor 7 plus a low-torque reducer around the high-torque reducer, and connect the suspended high-torque reducer with a cross-dimensional universal coupling 5; modify the electrical system and application program to complete the modification of the plate rolling machine.

[0100] This solution can be used to retrofit traditional four-drive merging plate rolling machines: Remove the motors or hydraulic motors from the original four reducers, replace the four reducers, or add bevel gear reducers at the locations where the original parts were removed. Ensure the input shafts of these reducers are perpendicular to the extended center line of the upper work roll. Install four motors 7 on both sides of the upper work roll to drive four small-torque reducers. The small-torque reducers transmit torque to the four modified reducers mounted on the gearbox via a cross-dimensional universal coupling 5. Alternatively, the four motors 7 can also directly transmit torque to the four modified reducers mounted on the gearbox via the cross-dimensional universal coupling 5.

[0101] Compared to the original motor-driven four-roll plate bending machine, this solution offers wider applicability and easier maintenance. In the original motor-driven four-roll plate bending machine, both the motor and reducer are suspended on the upper work roll, resulting in limited installation space, limiting the use of large motors, and prohibiting the simultaneous use of multiple motors. In contrast, this solution only suspends the direct-drive reducer 3 on the upper work roll 1, while the other motors 7 and drive reducers 10 are installed on the ground. Due to the relatively larger ground installation space, multiple large motors can be accommodated simultaneously, thus enabling the use of larger plate bending machines. The fixed installation of the motors in this solution reduces vibration of the plate bending machine body, making maintenance safer and more convenient. Furthermore, the lateral installation of the motors and drive reducers 10 shortens the length of the plate bending machine, saving factory space.

[0102] Compared to the original four-wheel drive combined plate rolling machine driven by electric motors, this solution offers advantages such as convenient installation and maintenance, and wider adaptability. The original four-wheel drive combined plate rolling machine is characterized by four motors and four planetary reducers driving a large gear to drive the upper work rollers. The motors and reducers mounted on the large gearbox are quite long, making the entire transmission side of the plate rolling machine very long and heavy. Installation and maintenance must be carried out at heights, and the cables used during operation also move up and down, posing safety hazards. The vibrations caused by the motors during operation are also significant. This solution can modify the original four-wheel drive combined main drive. The new structure has four motors 7 mounted on the ground on both sides, driving four reducers on the housing through a cross-dimensional universal coupling 5. The new structure of the plate rolling machine significantly improves safety.

[0103] Furthermore, the power input shaft and power output shaft in this utility model are arranged at different angles, as follows: Figure 18a The angle between the power input shaft 4 and the power output shaft 6 is 75°; Figure 18b The angle between the power input shaft 4 and the power output shaft 6 is 90°, as shown. Figure 18c The angle between the power input shaft 4 and the power output shaft 6 is 120°, as shown. Figure 18d The angle between the power input shaft 4 and the power output shaft 6 is shown to be 180°. Further explanation is provided regarding the arrangement of the integrated drive unit around the top view projection of the direct drive reducer 3, centered on the input end of the direct drive reducer 3, within a sector-shaped area surrounding the input end of the direct drive reducer 3.

[0104] Compared to existing hydraulic plate rolling machines, this solution saves energy and improves work efficiency. Traditional hydraulic plate rolling machines, as described in the technical background, waste a significant amount of energy during energy conversion, a problem solved by this solution's direct drive method. In terms of manufacturing, the main hydraulic drive system is eliminated, thus reducing equipment manufacturing costs. Traditional hydraulic plate rolling machines have a rolling speed of 0-4 m / min, while this solution uses frequency conversion drive for flexible speed adjustment. When rolling thin plates, it can operate at high speeds, reaching over 8 m / min, and the rolling time can be adjusted and controlled according to the plate thickness, improving work efficiency.

[0105] The specific embodiments described herein are merely illustrative examples of the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or substitute them with similar methods, without departing from the spirit of this invention or exceeding its defined scope. Although this invention has been described in detail above, such descriptions are considered illustrative or exemplary rather than restrictive. It should be understood that changes and modifications can be made by those skilled in the art within the scope of the following claims. Specifically, this invention covers additional embodiments having any combination of features from the different embodiments described above. With regard to the use of the expressions "general" or "substantially," this patent application should be understood to disclose that the disclosure equally fully satisfies these features and values, i.e., without any of the foregoing characterizations as "general" or "substantially."

[0106] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A multi-dimensional modular direct-drive plate rolling assembly, comprising a machine tool, wherein an upper work roll and at least one lower work roll are rotatably arranged on the machine tool, and a plate rolling station is formed between the upper work roll and the lower work roll, characterized in that, The machine tool is equipped with a suspended direct-drive reducer. The output end of the direct-drive reducer is connected to the upper work roller. The input end of the direct-drive reducer is connected to an integrated drive device via a cross-dimensional universal coupling. The integrated drive device is located on one or both sides of the top-view projection line of the upper work roller. A power input line is formed between the cross-dimensional universal coupling and the direct-drive reducer. A transmission output line is formed between the direct-drive reducer and the upper work roller. The top-view projection extension line of the power input line and the top-view projection extension line of the transmission output line form an angle of 90 degrees ± 50 degrees.

2. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 1, characterized in that, The integrated drive device is connected to one end of the cross-dimensional universal coupling via a power output shaft, and the other end of the cross-dimensional universal coupling is connected to the direct drive reducer via a power input shaft. The central axis of the power input shaft is the power input line, the central axis of the output end of the direct drive reducer is the transmission output line, and the angle between the central axis of the cross-dimensional universal coupling and the power input line is the transmission angle.

3. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 1, characterized in that, The integrated drive device includes a motor, which is connected to the cross-dimensional universal coupling via a drive coupling, and a brake is provided on the outer periphery of the drive coupling.

4. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 2, characterized in that, The integrated drive device includes a motor and a drive reducer. The motor is connected to the drive reducer through a drive coupling. The drive reducer is connected to the cross-dimensional universal coupling through the power output shaft. A brake is provided on the outer periphery of the drive coupling.

5. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 4, characterized in that, At least one motor is connected to a drive reducer, which is connected to the direct drive reducer via one or two of the cross-dimensional universal couplings.

6. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 1, characterized in that, The machine tool includes a connecting beam at the bottom, on which a reversing side frame and a transmission side frame are erected. The upper work roll and the lower work roll are arranged between the reversing side frame and the transmission side frame. Both ends of the upper work roll and the lower work roll are connected to bearing seats to form rotation. A reversing device is connected to the reversing side of the upper work roll. A reversing side cylinder is provided on the reversing side frame, and a transmission side cylinder is provided on the transmission side frame to connect to the transmission end of the upper work roll.

7. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 6, characterized in that, A torque limiting guide groove is provided on the transmission side frame, and a torque limiting seat / arm is installed in the torque limiting guide groove. The torque limiting seat / arm is connected to one end of the upper working roller, and the direct drive reducer is fixed on the torque limiting seat / arm. The output end of the direct drive reducer is connected to the end of the upper working roller along the same axis.

8. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 7, characterized in that, The center of the torque limiting seat / arm has a circular hole, the end of the upper working roller passes through the circular hole, several guide plates are attached to the outer periphery of the torque limiting seat / arm, the end of the upper working roller is connected to the output end of the direct drive reducer through a connecting structure, and the housing of the direct drive reducer is fixed to the torque limiting seat / arm by several bolts.

9. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 6, characterized in that, The reversing side frame is provided with a left guide rail, and the transmission side frame is provided with a right guide rail. The bearing seat at the left end of the lower working roller is slidably connected to the left guide rail, and the bearing seat at the right end of the lower working roller is slidably connected to the right guide rail. The bearing seats of the lower working roller are driven by a horizontal moving oil cylinder.

10. The multi-dimensional modular roll-to-roll direct-drive assembly as described in claim 1, characterized in that, The cross-dimensional universal coupling includes two sets of universal couplings and an intermediate connecting device connecting the two universal couplings. The intermediate connecting device is installed on the lifting device; the intermediate connecting device is a bevel gear or a connecting shaft.

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