A high speed punch press drive system

Abstract

The application discloses a high-speed punch transmission system, which comprises a driving device, a driving shaft connected with the driving device, a composite gear fixed on the driving shaft, and a driven gear connected with the composite gear. The composite gear comprises a hub and a gear ring, the gear ring is connected with the hub through a detachable structure, the hub is made of metal material, and the gear ring is made of engineering plastic. The embodiment of the application utilizes material damping characteristics to effectively reduce transmission noise and vibration. Through the design of a rigid-flexible gear pair, the impact load transmission path is optimized. The plastic gear ring serves as a controllable flexible buffer unit, which can actively attenuate and redistribute the impact torque from the working end, thereby avoiding the direct transmission of rigid impact to the motor and precision bearing, protecting the core driving components and prolonging the service life. When the gear ring is damaged, the entire gear or complex hub assembly does not need to be replaced, and only the plastic gear ring needs to be replaced.

Description

Technical Field

[0001] This application relates to the field of mechanical transmission technology, and in particular to a high-speed stamping press transmission system. Background Technology

[0002] As one of the core pieces of equipment in modern manufacturing, the transmission system of a stamping press needs to withstand periodic, high-amplitude impact loads. Gears, as key power transmission components in the transmission system, directly affect the reliability, lifespan, energy consumption, and noise level of the entire machine.

[0003] Traditional high-speed stamping press transmission systems typically employ all-metal gears, such as gears made of alloy steel that have undergone tempering or carburizing and quenching. While this structure offers high mechanical strength, it also presents inherent drawbacks. Due to the large mass and high inertia of stamping press gears, the immense inertial force under high-frequency stamping exacerbates fatigue in bearings and the machine frame. Furthermore, metal gears generate severe structural vibrations and aerodynamic noise during meshing impacts and sudden load changes, deteriorating the working environment and failing to meet the environmental and occupational health requirements of modern factories. Simultaneously, due to the poor damping characteristics of metal materials, the impact torque generated during stamping is transmitted almost unbuffered directly to components or structures such as the drive motor and subsequent transmission chains of the stamping press, easily leading to motor overcurrent, shaft torsional vibration, and other component damage, thus shortening the service life of critical components in the entire transmission system. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a high-speed stamping press transmission system that can solve the problem that existing high-speed stamping press transmission systems are prone to damaging stamping press components due to the direct transmission of impact loads.

[0005] A high-speed stamping press transmission system according to an embodiment of this application includes: Drive unit; The drive shaft is connected to the drive device for transmission. A composite gear is fixedly sleeved on the drive shaft; The driven gear meshes with the compound gear. The composite gear includes a hub and a gear ring. The gear ring is connected to the hub via a detachable structure. The hub is made of metal, and the gear ring is made of plastic.

[0006] In this embodiment of the application, the detachable structure includes: A plurality of first through holes are provided on the outer edge of the hub; A plurality of second through holes are provided on the gear ring and are positioned corresponding to the first through hole; A gear ring pressure plate is pressed against one side of the gear ring, and the gear ring pressure plate is provided with a plurality of third through holes corresponding to the position of the first through hole; And threaded fasteners that pass through the corresponding first through hole, second through hole and third through hole.

[0007] In this embodiment of the application, the high-speed stamping press transmission system further includes a machine body, the drive device is disposed on the top of the machine body, a transmission wheel is fixedly sleeved on the drive shaft, and the transmission wheel is connected to the drive device by a transmission belt.

[0008] In this embodiment of the application, the toothed ring has a buffer structure inside.

[0009] In some embodiments of this application, the buffer structure is a plurality of buffer cavities circumferentially arranged on the gear ring, the buffer cavities being filled with a buffer material that has fluidity.

[0010] In some embodiments of this application, the buffer structure is a porous structure disposed inside the gear ring.

[0011] Furthermore, the porous structure is a gradient porous structure, which includes a transfer layer near the teeth of the gear ring, a buffer layer near the hub, and a transition layer between the transfer layer and the buffer layer. The number of pores in the buffer layer is greater than the number of pores in the transition layer, and the number of voids in the transition layer is greater than the number of pores in the transfer layer.

[0012] In this embodiment, a sensor is encapsulated inside the gear ring for real-time monitoring of the gear's torque, temperature, cracks, or wear condition.

[0013] Furthermore, the composite gear is sleeved on the driven shaft, and a conductive slip ring is sleeved on the driven shaft. The conductive slip ring is electrically connected to the sensor.

[0014] In this embodiment of the application, the gear ring is composed of multiple detachable gear segment modules.

[0015] The high-speed stamping press transmission system according to the embodiments of this application has at least the following beneficial effects: This application embodiment utilizes the material damping characteristics to effectively reduce transmission noise and vibration. Since engineering plastics have higher internal damping than metals, when gears mesh to transmit power, especially when subjected to stamping impact, the plastic gear ring can effectively absorb and dissipate high-frequency vibration energy, thereby significantly reducing the air noise and structural noise generated by the transmission system and improving the working environment.

[0016] This application's embodiments optimize the impact load transmission path through a rigid-flexible gear pair design. By employing a pairing of an all-metal driven gear and a composite gear consisting of a metal hub and a plastic gear ring, an asymmetric stiffness element is constructed in the transmission chain. The plastic gear ring, acting as a controllable flexible buffer unit, can actively attenuate and redistribute the impact torque from the working end, preventing rigid impacts from being directly transmitted to the motor and precision bearings, thereby protecting the core drive components and extending their service life.

[0017] By designing a detachable connection structure between the gear ring and the hub, the gear ring becomes an independent wear component module. When the gear ring suffers from long-term wear or accidental damage, there is no need to replace the entire gear or complex hub assembly; only the plastic gear ring needs to be replaced. This greatly simplifies the maintenance process, reduces downtime, and lowers spare parts inventory costs.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The accompanying drawings are used to provide a further understanding of the technical solutions disclosed in this application and form part of the specification. They are used together with the embodiments disclosed in this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions disclosed in this application.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the driven gear and compound gear meshing in an embodiment of this application; Figure 3 This is a cross-sectional structural diagram of an embodiment of this application; Figure 4 This is a schematic diagram of the composite gear structure of this application; Figure 5 This is a schematic diagram of the tooth segment module structure of this application.

[0021] Reference numerals: 100, drive unit; 110, drive shaft; 120, compound gear; 130, driven gear; 121, hub; 122, gear ring; 123, first through hole; 124, second through hole; 125, third through hole; 126, gear ring pressure plate; 127, threaded fastener; 140, machine body; 111, transmission wheel; 112, transmission belt; 170, gear segment module; 180, driven shaft. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0026] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Please see Figures 1-4 This application discloses a high-speed stamping press transmission system, including a drive device 100, a drive shaft 110 connected to the drive device 100, a compound gear 120 fixedly sleeved on the drive shaft 110, and a driven gear 130 meshing with a driven gear 130. The compound gear 120 includes a hub 121 and a gear ring 122. The gear ring 122 is connected to the hub 121 through a detachable structure. The hub 121 is made of metal material, and the gear ring 122 is made of engineering plastic. The drive device 100 is a motor.

[0028] This application embodiment utilizes the material damping characteristics to effectively reduce transmission noise and vibration. Since engineering plastics have higher internal damping than metals, when gears mesh to transmit power, especially when subjected to stamping impact, the plastic gear ring 122 can effectively absorb and dissipate high-frequency vibration energy, thereby significantly reducing the air noise and structural noise generated by the transmission system and improving the working environment.

[0029] This application embodiment optimizes the impact load transmission path through a rigid-flexible gear pair design. By employing a pairing of an all-metal driven gear 130 and a composite gear 120 composed of a metal hub 121 and a plastic gear ring 122, an asymmetric rigidity element is constructed in the transmission chain. The plastic gear ring 122, as a controllable flexible buffer unit, can actively attenuate and redistribute the impact torque from the working end, preventing rigid impacts from being directly transmitted to the motor and precision bearings, thereby protecting the core drive components and extending their service life.

[0030] By designing a detachable connection structure between the gear ring 122 and the hub 121, the gear ring 122 becomes an independent wear component module. When the gear ring 122 is worn out due to long-term wear or accidental damage, it is not necessary to replace the entire gear or the complex hub 121 assembly; only the plastic gear ring 122 needs to be replaced. This greatly simplifies the maintenance process, reduces downtime, and lowers spare parts inventory costs.

[0031] In this embodiment, the detachable structure includes a plurality of first through holes 123 disposed on the outer edge of the hub 121, a plurality of second through holes 124 disposed on the gear ring 122 and corresponding to the positions of the first through holes 123, and a gear ring 122 pressure plate 126 covering one side of the gear ring 122. The gear ring 122 pressure plate 126 is provided with a plurality of third through holes 125 corresponding to the positions of the first through holes 123, and threaded fasteners 127 passing through the corresponding first through holes 123, second through holes 124 and third through holes 125. The threaded fasteners 127 may be screws, bolts or other fasteners.

[0032] The press gear structure of this application embodiment also includes a machine body 140, the drive device 100 is disposed on the top of the machine body 140, and a transmission wheel 111 is fixedly sleeved on the drive shaft 110. The transmission wheel 111 is connected to the drive device 100 through a transmission belt 112.

[0033] By placing the drive unit 100 on the top of the body 140 and connecting it to the transmission belt 112, the load of the gears can be prevented from impacting the drive unit 100.

[0034] In this embodiment of the application, the toothed ring 122 is provided with a buffer structure inside.

[0035] By setting a buffer structure inside the gear ring 122, the torque fluctuation caused by the instantaneous impact of the press is absorbed, protecting the motor and transmission system.

[0036] In this embodiment of the application, the buffer structure is a plurality of buffer cavities arranged circumferentially on the toothed ring 122, and the buffer cavities are filled with a buffer material that has fluidity.

[0037] The buffer can be a viscoelastic damping material such as silicone, a non-Newtonian fluid such as a shear thickener, or a microparticle damping agent.

[0038] During gear rotation, the internal friction, shear deformation, or particle collision of the buffer material in the buffer cavity can convert more impact mechanical energy into heat energy and dissipate it, thus enhancing the buffering and vibration reduction effect.

[0039] In this embodiment of the application, the buffer structure is a porous structure disposed inside the toothed ring 122.

[0040] In this embodiment of the application, the porous structure is a gradient porous structure, which includes a transfer layer near the teeth of the gear ring 122, a buffer layer near the hub 121, and a transition layer located between the transfer layer and the buffer layer. The number of pores in the buffer layer is greater than the number of pores in the transition layer, and the number of voids in the transition layer is greater than the number of pores in the transfer layer.

[0041] By incorporating a porous structure, the gear ring 122 possesses a certain deformation buffering capacity. Through the porosity gradient of the "transfer layer - transition layer - buffer layer," impact energy is absorbed in a three-stage progressive manner from the surface inwards. The transfer layer resists the initial impact, the transition layer dissipates energy through pore wall deformation, and the buffer layer absorbs residual energy through large deformation compaction. The gradient deformation capacity of the structure transforms the instantaneous rigid impact into a soft landing process, prolonging the impact duration and thus reducing the peak load transmitted to the transmission system, protecting critical components such as the motor and bearings.

[0042] In some embodiments of this application, a sensor is encapsulated within the gear ring 122 for real-time monitoring of the gear's torque, temperature, cracks, or wear condition.

[0043] By encapsulating a sensor inside the gear ring 122 to monitor its condition, an early warning signal can be issued when the gear is in poor condition, thereby allowing the system to be shut down in time to prevent chain damage such as tooth breakage caused by abnormal overload. Furthermore, the monitoring signal can predict the damage to the gear, allowing for early maintenance.

[0044] In some embodiments of this application, the composite gear 120 is sleeved on the driven shaft, and a conductive slip ring is sleeved on the driven shaft. The conductive slip ring is electrically connected to the sensor.

[0045] By setting a conductive slip ring, the guide between the sensor and the conductive slip ring can rotate with the gear, avoiding wire tangling. The wire is led out from the driven shaft, which can provide continuous power supply and signal transmission.

[0046] Please see Figure 5 Based on the above embodiments, in some embodiments of this application, the gear ring 122 is composed of a plurality of detachable gear segment modules 170.

[0047] By providing a detachable tooth segment module 170, when the tooth ring 122 is damaged, the specific tooth segment module 170 can be replaced instead of replacing the entire unit.

[0048] In some alternative embodiments, the functions / operations mentioned in the block diagrams may not occur in the order shown in the operation diagrams. For example, depending on the functions / operations involved, two consecutively shown blocks may actually be executed substantially simultaneously, or the blocks may sometimes be executed in reverse order. Furthermore, the embodiments presented and described in the flowcharts of this application are provided by way of example to provide a more comprehensive understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is changed and sub-operations described as part of a larger operation are executed independently.

[0049] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A high-speed stamping press transmission system, characterized in that, include: Drive unit; The drive shaft is connected to the drive device for transmission. A compound gear is fixedly sleeved on the drive shaft; The driven gear meshes with the compound gear. The composite gear includes a hub and a gear ring. The gear ring is connected to the hub via a detachable structure. The hub is made of metal, and the gear ring is made of plastic.

2. The high-speed stamping press transmission system according to claim 1, characterized in that, The detachable structure includes: A plurality of first through holes are provided on the outer edge of the hub; A plurality of second through holes are provided on the gear ring and are positioned corresponding to the first through hole; A gear ring pressure plate is pressed against one side of the gear ring, and the gear ring pressure plate is provided with a plurality of third through holes corresponding to the position of the first through hole; And threaded fasteners that pass through the corresponding first through hole, second through hole and third through hole.

3. The high-speed stamping press transmission system according to claim 1, characterized in that, It also includes a machine body, the drive device is located on the top of the machine body, a transmission wheel is fixedly sleeved on the drive shaft, and the transmission wheel is connected to the drive device by a transmission belt.

4. The high-speed stamping press transmission system according to claim 1, characterized in that, The gear ring has a buffer structure inside.

5. The high-speed stamping press transmission system according to claim 4, characterized in that, The buffer structure consists of multiple buffer cavities arranged circumferentially on the gear ring, and the buffer cavities are filled with a buffer material that is fluid.

6. The high-speed stamping press transmission system according to claim 4, characterized in that, The buffer structure is a porous structure disposed inside the gear ring.

7. The high-speed stamping press transmission system according to claim 6, characterized in that, The porous structure is a gradient porous structure, which includes a transfer layer near the teeth of the gear ring, a buffer layer near the hub, and a transition layer between the transfer layer and the buffer layer. The number of pores in the buffer layer is greater than the number of pores in the transition layer, and the number of pores in the transition layer is greater than the number of pores in the transfer layer.

8. The high-speed stamping press transmission system according to claim 1, characterized in that, The gear ring is encapsulated with a sensor for real-time monitoring of the gear's torque, temperature, cracks, or wear.

9. The high-speed stamping press transmission system according to claim 8, characterized in that, The composite gear is sleeved on the driven shaft, and a conductive slip ring is sleeved on the driven shaft. The conductive slip ring is electrically connected to the sensor.

10. The high-speed stamping press transmission system according to any one of claims 1 to 9, characterized in that, The gear ring is composed of multiple detachable gear segment modules.

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