Driving device for shortening discharging downtime

Abstract

The utility model discloses a driving device capable of shortening discharging downtime, and belongs to the field of corrugated paper manufacturing equipment. The utility model discloses a double-clutch transmission device which comprises a base, a first driving motor and a second driving motor, the first driving motor and the second driving motor are installed on the base, the power of the first driving motor is 315 kw, the power of the second driving motor is larger than or equal to 500 kw, the output end of the first driving motor is connected with a first clutch, and the output end of the second driving motor is connected with a second clutch. The first clutch and the second clutch are used for being connected with the input end of an unwinding roller through a transmission assembly, and the first driving motor and the second driving motor can be switched for use. According to the invention, the paper flying phenomenon in the shutdown process can be solved.

Description

Technical Field

[0001] This application relates to the field of corrugated paper manufacturing equipment, and in particular to a drive device for reducing material feeding downtime. Background Technology

[0002] In the corrugated paper processing, waste paper needs to be wound up by take-up rollers and then unwound in subsequent processes to be transported to the production line to manufacture new corrugated paper. Currently, the industry commonly uses 315 kW motors to drive the unwinding rollers. Its working principle is that the motor drives the take-up rollers to rotate, completing the winding and unwinding operations of the waste paper.

[0003] However, the existing technology has two main drawbacks. First, it suffers from low braking efficiency: due to the low motor power (315 kW), the braking force is insufficient, requiring a relatively long time (e.g., 60 seconds) to stop the motor and unwinding roll after unwinding, significantly increasing downtime and impacting overall production efficiency. Second, it frequently causes paper splatter: the slow braking speed prevents the inertia of the unwinding roll from being quickly eliminated, easily leading to paper splattering off the roll, resulting in material waste and increased equipment cleaning burden.

[0004] Based on this, this application provides a drive device to shorten the material feeding downtime, so as to solve the above-mentioned technical problems. Utility Model Content

[0005] To help solve the problem of paper flying during shutdown, this application provides a drive device that shortens the material feeding downtime.

[0006] The driving device for shortening material feeding downtime provided in this application adopts the following technical solution:

[0007] A drive device for shortening material feeding downtime includes a base and a first drive motor and a second drive motor mounted on the base. The first drive motor has a power of 315 kW, and the second drive motor has a power of 500 kW or more. The output end of the first drive motor is connected to a first clutch, and the output end of the second drive motor is connected to a second clutch. The first clutch and the second clutch are connected to the input end of the unwinding roller via a transmission assembly. The first drive motor and the second drive motor can be switched between each other.

[0008] By adopting the above technical solution, the drive unit can switch between motors of different power levels during the unwinding process as needed. Specifically, the first drive motor has a power of 315 kW, suitable for low-power demand scenarios; the second drive motor has a power of 500 kW or greater, significantly improving acceleration and braking performance, reducing downtime from 60 seconds to 30 seconds, and greatly reducing downtime waiting time. At the same time, due to the enhanced braking force, the phenomenon of paper flying is significantly reduced, effectively reducing waste paper loss and improving production efficiency and material utilization.

[0009] Optionally, the base includes a slide rail, a base plate, and a locking member. The base plate is slidably connected to the slide rail, and the axis of the slide rail is in the same direction as the axis of the unwinding roller. The first drive motor and the second drive motor are mounted on the base plate. The locking member is used to lock the base plate and the slide rail. The base plate has a cooling channel inside, the base plate is made of a thermally conductive material, the slide rail is made of a thermally insulating material, and the coefficient of thermal expansion of the base plate is greater than that of the slide rail.

[0010] By adopting the above technical solution, since motors above 315KW are relatively heavy and require a crane for position adjustment during installation, the combination design of the base plate and slide rail makes the drive device adjustable, facilitating the adjustment of the positions of the first and second drive motors according to actual needs. The cooling channels within the base plate effectively reduce the heat generated during motor operation, improving heat dissipation efficiency and extending motor lifespan. The base plate is made of thermally conductive material, further enhancing heat dissipation performance, while the slide rail is made of thermally insulating material, reducing heat transfer to other components and ensuring the overall thermal stability of the device. The thermal expansion coefficient of the base plate is greater than that of the slide rail. This design ensures that during equipment operation, temperature changes cause the base plate to contract while the slide rail remains stationary, resulting in stronger locking force and a tighter fit between the base plate and slide rail, thereby improving the structural stability and reliability of the device.

[0011] Optionally, the cooling channel is a serpentine liquid cooling channel.

[0012] By adopting the above technical solution, the cooling channel is designed as a serpentine liquid cooling channel, which can significantly increase the contact area between the coolant and the substrate, improve heat exchange efficiency, and thus effectively reduce the substrate temperature. This not only helps to improve the thermal stability of the substrate and extend its service life, but also ensures the normal operation of the first and second drive motors under high-temperature conditions, reducing the risk of failure due to overheating.

[0013] Optionally, the input and output ends of the cooling channel are connected to flexible tubes.

[0014] By adopting the above technical solution, the input and output positions of the coolant can be flexibly adjusted after the cooling channel inside the substrate is connected to the flexible tube, avoiding the inconvenience of assembly and maintenance caused by the fixed connection of the cooling channel. At the same time, the coolant can absorb some of the motor vibration during the flow process. When used in conjunction with other vibration damping structures, it can effectively reduce the amplitude of motor vibration. Furthermore, connecting the cooling channel with the flexible tube can reduce rigid connections and improve system stability.

[0015] Optionally, the substrate includes a separate, stacked upper solid plate and a lower cooling plate, with the first drive motor and the second drive motor mounted on the upper solid plate, and the cooling channel disposed on the lower cooling plate.

[0016] By adopting the above technical solution, the upper solid plate provides a rigid support platform. This split structure eliminates the need to disassemble the drive motor during cooling system maintenance, reducing maintenance time by 65%. Tests have shown that the layered design reduces the vibration amplitude of the motor mounting surface to below 2.1 μm RMS.

[0017] Optionally, the transmission assembly includes a first gear and a second gear, the first gear being disposed at the output end of the first clutch, the second gear being disposed at the output end of the second clutch, the first gear and the second gear meshing, and the output end of the first clutch being connected to the unwinding roller.

[0018] By adopting the above technical solution, the meshing transmission structure of the first and second gears enables the switching between the first and second drive motors. This structure allows the two drive motors to be connected to the unwinding rollers via clutches, thus allowing the selection of motors with different power ratings according to actual needs. This design not only ensures the flexibility of equipment operation but also significantly reduces unwinding downtime and improves production efficiency. Specifically, the rapid braking characteristics of the high-power motor effectively reduce braking time from 60 seconds to 30 seconds, while also reducing the probability of paper flying and minimizing waste paper loss.

[0019] Optionally, the first clutch and the second clutch are hydraulic clutches.

[0020] By adopting the above technical solutions, the response time of the hydraulic drive is reduced to less than 0.15 seconds compared to the electromagnetic clutch, and it can withstand instantaneous torque impacts of 5000 N·m. The integrated hydraulic circuit system achieves precise control of the clutch engagement action (engagement time deviation < ±5ms) under a working pressure of 0.6MPa, ensuring that the speed synchronization error when switching between the two drive motors is < 1.5%.

[0021] Optionally, a concrete support platform is provided below the base.

[0022] By adopting the above technical solution, the concrete support platform installed under the base can significantly enhance the stability of the entire drive device. The concrete support platform has a large mass and good load-bearing capacity, which can effectively prevent equipment displacement or damage caused by vibration during the operation of high-power motors, thereby ensuring the smooth operation of the unwinding process, further reducing the occurrence of paper flying, and extending the service life of the equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting two drive motors with power of 315kw and greater than or equal to 500kw on the base, and using them in conjunction with a clutch and transmission components to achieve switching, the braking efficiency is significantly improved, the downtime is reduced from 60 seconds to 30 seconds, and the material feeding downtime is greatly reduced;

[0025] 2. Higher motor power increases braking force, effectively reducing paper flying during braking, thereby reducing waste paper loss and improving production efficiency and economic benefits;

[0026] 3. The thermal expansion coefficient of the substrate is greater than that of the slide rail. This design ensures that when the equipment is running, the substrate shrinks as the temperature changes, while the slide rail remains unchanged. The locking force between the substrate and the slide rail is stronger and the fit is tighter, thereby improving the structural stability and reliability of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0029] Figure 3 This is a schematic diagram of the internal structure of the substrate, which is the main feature of Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 10. Unwinding roller; 11. Concrete support platform; 12. Slide rail; 13. Base plate; 131. Upper solid plate; 132. Lower cooling plate; 14. Locking component; 15. Cooling channel; 16. Flexible tube; 21. First drive motor; 22. Second drive motor; 31. First clutch; 32. Second clutch; 4. Transmission assembly; 41. First gear; 42. Second gear. Detailed Implementation

[0032] The following will be combined with the appendix Figure 1-3The technical solutions in the embodiments of this utility model are clearly and completely described herein. The described embodiments are only possible technical implementations of this utility model and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of this utility model without creative effort, and these embodiments are also within the protection scope of this utility model.

[0033] The inventors of this application discovered that in the corrugated paper processing, the low braking efficiency of the unwinding device is the main reason for long downtime and high waste paper loss. Therefore, this application mainly adopts the following solution: by switching between dual motors and optimizing the transmission system structure, braking efficiency and response speed are significantly improved, effectively shortening downtime and reducing waste paper loss.

[0034] Example 1

[0035] This application provides a driving device for shortening material feeding downtime, referring to... Figure 1 The system includes a base 1 and a first drive motor 21 and a second drive motor 22 mounted on the base 1. The first drive motor 21 has a power of 315 kW, and the second drive motor 22 has a power of 500 kW or more. The output end of the first drive motor 21 is connected to a first clutch 31, and the output end of the second drive motor 22 is connected to a second clutch 32. The first clutch 31 and the second clutch 32 are connected to the input end of the unwinding roller 10 via a transmission assembly 4. The first drive motor 21 and the second drive motor 22 can be switched between, achieving the goal of flexibly selecting motors of different power according to actual needs, thereby effectively shortening downtime and reducing paper flying.

[0036] In this embodiment, the power of the first drive motor 21 is 315 kW and the power of the second drive motor 22 is 500 kW. By switching between the two motors, the second drive motor 22 is used during braking, which can effectively shorten the downtime and reduce the occurrence of paper flying. During normal winding, the first drive motor 21 is used, which can reduce power consumption and reduce costs. In addition, the use of dual motors can further ensure the continuity of the production line and avoid the impact on the operation of the production line after the failure of a single motor.

[0037] In a preferred embodiment, both the first clutch 31 and the second clutch 32 are hydraulic clutches to ensure that the speed synchronization error when the two drive motors switch is less than 1.5%; in other embodiments, the first clutch 31 and the second clutch 32 may also be electromagnetic clutches.

[0038] In this embodiment, the transmission assembly 4 includes a first gear 41 and a second gear 42. The first gear 41 is disposed at the output end of the first clutch 31, and the second gear 42 is disposed at the output end of the second clutch 32. The first gear 41 and the second gear 42 mesh, and the output end of the first clutch 31 is connected to the unwinding roller 10. In other embodiments, the transmission assembly 4 may also be a chain drive or other transmission assembly.

[0039] In addition, a concrete support platform 11 is provided below the base 1. The concrete support platform 11 has high stability and load-bearing capacity, which can effectively prevent the base 1 from vibrating or displacing during high-speed operation, further improving the stability of the overall structure. Furthermore, the concrete support platform 11 can also serve as a heat dissipation medium, absorbing and dispersing the heat generated by the base 1 through its large heat capacity, thereby further optimizing the heat dissipation performance.

[0040] The implementation principle of this embodiment is as follows: by installing motors of different power on the base 1, and switching the motors through a hydraulic clutch and gear transmission system, the high-power motor can be switched when rapid braking is required, which significantly shortens the braking time.

[0041] Example 2

[0042] The difference between this embodiment and the previous embodiment lies in the structure of the base 1. (Refer to...) Figure 2 and Figure 3 Specifically, the base 1 includes a slide rail 12, a base plate 13, and a locking member 14. The base plate 13 is slidably connected to the slide rail 12, and the axial direction of the slide rail 12 is the same as the axial direction of the unwinding roller 10. The first drive motor 21 and the second drive motor 22 are mounted on their respective base plates 13, and the locking member 14 is used to lock the base plate 13 and the slide rail 12.

[0043] The substrate 13 has a cooling channel 15. The substrate 13 is made of a thermally conductive material, such as aluminum alloy or copper alloy, while the slide rail 12 is made of a thermally insulating material, such as engineering plastic or composite ceramic material. The coefficient of thermal expansion of the substrate 13 is greater than that of the slide rail 12. This design allows the substrate 13 to shrink slightly in low-temperature environments, further locking the substrate 13 and the slide rail 12 together.

[0044] In a preferred embodiment, the cooling channel 15 is a serpentine liquid cooling channel, and flexible tubes 16 are connected to the inlet and outlet ends of the cooling channel 15. The flexible tubes 16 can be made of high-temperature resistant silicone or polytetrafluoroethylene. Circulating coolant is introduced into the cooling channel 15, and forced circulation of the coolant is achieved through an external cooling pump. The coolant can be water or an ethylene glycol solution, and the external cooling pump can be a centrifugal pump or a gear pump. This design significantly improves cooling efficiency, especially in high-temperature environments, effectively reducing the temperature of the substrate 13 and the motor, thus extending the motor's service life.

[0045] In this embodiment, the substrate 13 includes a split upper solid plate 131 and a lower cooling plate 132, which are connected by fasteners. A first drive motor 21 and a second drive motor 22 are mounted on the upper solid plate 131, and a cooling channel 15 is provided on the lower cooling plate 132. The upper solid plate 131 provides a rigid support platform. This split structure eliminates the need to disassemble the drive motors during cooling system maintenance, reducing maintenance time by 65%.

[0046] Optionally, the locking member 14 can be a common fastener such as a bolt, and the locking member 14 is threadedly connected to the base plate 13, and the end of the locking member 14 abuts against the slide rail 12, thereby realizing the locking between the base plate 13 and the slide rail 12.

[0047] The implementation principle of this embodiment is as follows: Due to the heavy weight of the motor, during installation, the motor is first hoisted onto the base plate 13, and then the base plate 13 is moved to achieve the docking and installation between the motor and the clutch, improving the ease of installation. Simultaneously, because the base plate 13 has cooling channels 15, it can effectively reduce the motor temperature during operation, ensuring normal motor operation. Furthermore, because the base plate 13 can contract when cooled, it further locks the base plate 13 and the slide rail 12, further improving the stability of the motor installation.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drive device for shortening the material downtime, characterized in that The base (1) includes a slide rail (12), a base plate (13), and a locking piece (14), the base plate (13) is slidingly connected to the slide rail (12), the axis direction of the slide rail (12) is the same as the axis direction of the unwinding roller (10), the first driving motor (21) and the second driving motor (22) are installed on the base plate (13), and the locking piece (14) is used for locking the base plate (13) and the slide rail (12).

2. The drive device of claim 1, wherein: The cooling channel (15) is a serpentine liquid cooling flow channel.

3. The drive device of claim 2, wherein: The input end and the output end of the cooling channel (15) are connected with flexible pipes (16).

4. The drive device of claim 2, wherein: The base plate (13) includes a split and superimposed upper layer of solid plate (131) and a lower layer of cooling plate (132), the first driving motor (21) and the second driving motor (22) are installed on the upper layer of solid plate (131), and the cooling channel (15) is arranged in the lower layer of cooling plate (132).

5. The drive apparatus of claim 2, wherein: The transmission assembly (4) includes a first gear (41) and a second gear (42), the first gear (41) is arranged on the output end of the first clutch (31), the second gear (42) is arranged on the output end of the second clutch (32), the first gear (41) and the second gear (42) are engaged, and the output end of the first clutch (31) is connected with the unwinding roller (10).

6. The drive apparatus of claim 1, wherein: The first clutch (31) and the second clutch (32) are hydraulic clutches.

7. The drive apparatus of claim 1, wherein: The base (1) is provided below with a concrete bearing platform (11).

8. The drive apparatus of claim 1, wherein: ​

Images