Flywheel device and sugar cane harvester

Abstract

The utility model discloses a flywheel device and sugarcane harvester, flywheel device includes flywheel axle, flywheel press -packaging assembly and movable press -packaging assembly, and flywheel press -packaging assembly is located on flywheel axle and has flywheel body, and movable press -packaging assembly is sleeved on flywheel axle and includes apron seat, movable pressure disc and first friction disc, and first friction disc is placed between movable pressure disc and flywheel body, and apron seat is axially limited on the side of movable pressure disc and first friction disc is away, and one of apron seat and movable pressure disc is equipped with boss part, and the other is equipped with recess part for boss part and inserts, and apron seat is equipped with and is opposite with recess part and pours oil hole way, thereby can reach the purpose of real -time adjustment pressure tightness to adapt to different working conditions, can make the setting of pressure tightness more accurate simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to a flywheel device and a sugarcane harvester. Background Technology

[0002] Sugarcane is one of the world's major economic crops, and after harvesting, it is sent to sugar mills for sugar extraction. Sugarcane harvesting methods include manual harvesting and mechanical harvesting. With the development of technology and the increase in labor costs, mechanical harvesting is becoming increasingly prevalent. Among them, the segmented sugarcane harvester can complete the processes of cutting, segmenting, and removing impurities from sugarcane in one go, with high harvesting efficiency, and is the most widely used sugarcane harvester globally.

[0003] The cutting device is a crucial component for cutting whole sugarcane into segments. During the cutting process, the upper and lower cutting rollers experience significant resistance and impact, exacerbating the machine's vibration. The inertial flywheel acts as an energy storage mechanism, providing auxiliary inertial torque to the upper and lower cutting rollers during the cutting process, stabilizing their operating speed during the cutting moment and intervals, and reducing the vibration impact of the cutting rollers on the entire machine. However, in existing flywheel mechanisms, the upper limit of friction between the flywheel and the pressure plate depends on the clamping force provided by the elastic clamping device. This results in inaccurate clamping force settings, significant influence from material properties, lubrication conditions, and other factors, and the clamping force cannot be adjusted in real time to adapt to different working conditions. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies, this utility model provides a flywheel device and a sugarcane harvester, aiming to solve the technical problem that the clamping force of the existing flywheel mechanism cannot be adjusted in real time.

[0005] To achieve the above objectives, the first aspect of this utility model provides a flywheel device, wherein the flywheel device includes a flywheel shaft, a flywheel press-fit assembly, and a movable press-fit assembly; the flywheel press-fit assembly is disposed on the flywheel shaft and has a flywheel body; the movable press-fit assembly is fitted onto the flywheel shaft and includes a cover plate seat, a movable pressure plate, and a first friction plate, the first friction plate being placed between the movable pressure plate and the flywheel body, the cover plate seat providing axial restraint on the side of the movable pressure plate away from the first friction plate, and one of the cover plate seat and the movable pressure plate having a boss portion, and the other having a groove portion into which the boss portion extends, and the cover plate seat having an oil injection channel communicating with the groove portion.

[0006] In one embodiment of the present invention, an axial limiting member is provided on the flywheel shaft, and the flywheel pressing assembly is fitted onto the flywheel shaft and includes a fixed pressure plate, a second friction plate and a flywheel body stacked sequentially along the axial direction of the flywheel shaft, with the fixed pressure plate abutting against the axial limiting member.

[0007] In one embodiment of this utility model, the fixed pressure plate includes a fixed shaft portion, a fixed outer key portion, and a fixed plate body portion. The fixed shaft portion is fitted onto the flywheel shaft and abuts against the axial limiting member. The fixed plate body portion and the fixed outer key portion are sequentially spaced apart on the outer side of the fixed shaft portion in the direction away from the axial limiting member. The second friction plate, the flywheel body, the first friction plate, and the movable pressure plate are sequentially fitted onto the fixed shaft portion on the side of the fixed plate body portion away from the axial limiting member. The inner hole of the movable pressure plate is provided with a movable inner key portion that is slidably connected to the fixed outer key portion.

[0008] In one embodiment of the present invention, the flywheel device further includes a packaging box with a cover opening, the flywheel shaft passes through the cover opening and extends into the packaging box and is driven and connected to the cutting device inside the packaging box, and the axial limiting member is located on the outside of the packaging box, the cover plate seat is placed on the outside of the cover opening and is detachably connected to the packaging box, and the axial limiting member is a clamping nut that is threadedly connected to the flywheel shaft.

[0009] In one embodiment of the present invention, the cover plate seat includes a bearing mounting part and a fixed mounting part arranged sequentially along the axial direction of the flywheel shaft. The bearing mounting part extends into the packaging box from the cover opening, and a first bearing is provided between the bearing mounting part and the flywheel shaft. The fixed mounting part is covered on the outside of the cover opening and is detachably connected to the packaging box. The fixed mounting part is provided with one of a boss part and a groove part and an oil injection channel.

[0010] In one embodiment of this utility model, the outer side of the fixed shaft portion is further provided with a shaft end step portion facing the cover plate seat. The shaft end step portion is located on the side of the fixed outer key portion away from the fixed disk body portion. The movable pressure plate includes a movable disk shoulder portion and a movable disk body portion arranged sequentially along the axial direction of the flywheel shaft. The inner hole of the movable disk body portion is provided with a movable inner key portion. The inner hole diameter of the movable disk shoulder portion is smaller than the inner hole diameter of the movable disk body portion, so that an inner hole step portion is formed on the inner wall between the movable disk shoulder portion and the movable disk body portion. The movable disk shoulder portion is fitted onto the fixed shaft portion and located between the cover plate seat and the shaft end step portion, so that the inner hole step portion and the shaft end step portion are arranged opposite to each other. The movable disk shoulder portion is provided with one of a boss portion and a groove portion.

[0011] In one embodiment of this utility model, the inner hole of the fixed shaft is provided with a fixed inner key, and the flywheel shaft is provided with a shaft-mounted outer key that is keyed to the fixed inner key.

[0012] In one embodiment of this utility model, the cover plate seat is provided with a groove portion arranged in an annular shape, and the movable pressure plate is provided with a boss portion arranged in an annular shape.

[0013] In one embodiment of this utility model, a sealing element is provided between the inner and outer walls of the groove and the boss.

[0014] To achieve the above objectives, a second aspect of this utility model provides a sugarcane harvester, wherein the sugarcane harvester includes the flywheel device described above.

[0015] Through the above technical solution, the flywheel device provided by this utility model has the following beneficial effects: When using the aforementioned flywheel assembly, the movable pressing component in the flywheel assembly includes a cover plate seat, a movable pressure plate, and a first friction plate. The first friction plate is placed between the movable pressure plate and the flywheel body. The cover plate seat provides axial restraint on the side of the movable pressure plate away from the first friction plate. One of the cover plate seat and the movable pressure plate is provided with a boss portion, and the other is provided with a groove portion into which the boss portion extends. The cover plate seat is provided with an oil injection channel communicating with the groove portion. This allows oil to be injected into the oil injection channel, and the oil enters the groove portion to apply a corresponding clamping force to the movable pressure plate. The maximum friction force between the flywheel body and the movable pressure plate is related to this clamping force. By adjusting the oil pressure entering the oil injection channel, the maximum friction force between the flywheel body and the movable pressure plate can be adjusted to achieve real-time adjustment of the clamping force to adapt to different working conditions. At the same time, the clamping force setting is only related to the oil pressure, which makes the setting more accurate.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a structural schematic diagram of a flywheel device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure in which the flywheel shaft meshes with the segmented gear placed in the packaging box according to an embodiment of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the flywheel shaft meshing with a segmented gear placed in the packaging box according to an embodiment of the present utility model. Figure 4 This is a structural schematic diagram of the flywheel shaft according to an embodiment of the present invention; Figure 5 This is a structural schematic diagram of the fixed pressure plate according to an embodiment of the present utility model; Figure 6 This is a cross-sectional structural schematic diagram of the fixed pressure plate according to an embodiment of the present utility model; Figure 7 This is a structural schematic diagram of the cover plate seat according to an embodiment of the present utility model; Figure 8 This is a cross-sectional structural schematic diagram of the cover plate seat according to an embodiment of the present utility model; Figure 9 This is a cross-sectional structural schematic diagram of the movable pressure plate according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 100. Flywheel shaft; 101. External thread section; 102. Shaft-mounted external key; 103. Shaft section gear section; 104. First bearing; 105. Second bearing; 110. Axial limiting component; 200. Flywheel press-fit assembly; 210. Flywheel body; 220. Fixed pressure plate; 221. Fixed shaft section; 222. Fixed external key section; 223. Fixed plate body; 224. Shaft end stepped section; 225. Fixed internal key section; 230. Second friction plate; 30. 0. Movable press-fit assembly; 310. Cover plate seat; 311. Bearing mounting part; 312. Fixed mounting part; 313. Groove part; 314. Oil injection channel; 315. Connecting hole; 320. Movable pressure plate; 321. Movable plate shoulder; 322. Movable plate body; 323. Movable inner key part; 324. Inner step part; 325. Outer step part; 326. Sealing groove; 330. First friction plate; 400. Encapsulation box; 500. Segmented gear. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0020] The flywheel device and sugarcane harvester of this utility model are described below with reference to the accompanying drawings.

[0021] like Figure 1 , Figure 7 and Figure 8 As shown, this utility model provides a flywheel device, wherein the flywheel device includes: Flywheel shaft 100; The flywheel press-fit assembly 200 is disposed on the flywheel shaft 100 and has a flywheel body 210; The movable press assembly 300 is fitted onto the flywheel shaft 100 and includes a cover plate seat 310, a movable pressure plate 320, and a first friction plate 330. The first friction plate 330 is positioned between the movable pressure plate 320 and the flywheel body 210. The cover plate seat 310 is axially limited on the side of the movable pressure plate 320 away from the first friction plate 330. One of the cover plate seat 310 and the movable pressure plate 320 is provided with a boss portion, and the other is provided with a groove portion 313 into which the boss portion extends. The cover plate seat 310 is provided with an oil injection channel 314 communicating with the groove portion 313.

[0022] When using the aforementioned flywheel assembly, the movable press-fit component 300 in the flywheel assembly includes a cover plate seat 310, a movable pressure plate 320, and a first friction plate 330. The first friction plate 330 is positioned between the movable pressure plate 320 and the flywheel body 210. The cover plate seat 310 provides axial positioning on the side of the movable pressure plate 320 away from the first friction plate 330. One of the cover plate seat 310 and the movable pressure plate 320 has a boss portion, and the other has a groove portion 313 into which the boss portion extends. The cover plate seat 310 has a nozzle that communicates with the groove portion 313. The oil channel 314 allows oil to enter the groove 313 after being injected into it, thus applying a corresponding clamping force to the movable pressure plate 320. The maximum friction between the flywheel body 210 and the movable pressure plate 320 is related to this clamping force. By adjusting the oil pressure entering the oil channel 314, the maximum friction between the flywheel body 210 and the movable pressure plate 320 can be adjusted to achieve real-time adjustment of the clamping force to adapt to different working conditions. At the same time, the clamping force setting is only related to the oil pressure, which makes the setting more accurate.

[0023] It should be noted that the flywheel device provided by this utility model is particularly suitable for the cutting device of a sugarcane harvester, but is not limited thereto. If other suitable rotating devices use the flywheel device provided by this utility model, they should fall within the protection scope of this utility model. This utility model will be described using the cutting device of a sugarcane harvester as an example. Specifically, the cutting device includes a cutting motor, two cutting rollers, and two cutting gears 500. The two cutting rollers are arranged parallel to each other and are driven by one or two cutting motors. The two cutting gears 500 are respectively and correspondingly arranged on the two cutting rollers. The two cutting gears 500 are meshed and driven. The flywheel shaft 100 of the flywheel device can be a partial shaft segment belonging to one of the cutting rollers, or the flywheel shaft 100 can be arranged parallel to the two cutting rollers and meshed with the cutting gears 500 through a gear structure.

[0024] More specifically, the flywheel body 210 has a friction part and a counterweight part arranged sequentially from the inside to the outside along the radial direction of the flywheel shaft 100. The thickness of the friction part is less than the thickness of the counterweight part. The friction part of the flywheel body 210 is designed to contact the friction disc, and the thickness of the counterweight part is designed to be greater than the thickness of the friction part. On the one hand, this allows for the formation of a cavity on the flywheel body 210 into which the corresponding friction disc and pressure disc can extend. On the other hand, considering that the outer ring of the flywheel body 210 is subjected to a greater load than the inner ring due to centrifugal force during operation, the design of being thin in the middle and thick at the edges ensures its stability. Of course, this utility model is not limited to this. The thickness of the flywheel body 210 can be set to be the same at any position, and the flywheel body 210 can be entirely composed of friction parts so that the entire side surface is in contact with the friction part.

[0025] See Figure 1 , Figure 5 and Figure 6 In one embodiment of this utility model, an axial limiting member 110 is provided on the flywheel shaft 100. The flywheel press-fit assembly 200 is fitted onto the flywheel shaft 100 and includes a fixed pressure plate 220, a second friction plate 230, and a flywheel body 210 stacked sequentially along the axial direction of the flywheel shaft 100. The fixed pressure plate 220 abuts against the axial limiting member 110, that is, the axial limiting member 110 can axially stop the fixed pressure plate 220. The second friction plate 230 is placed between the fixed pressure plate 220 and the flywheel body 210. By adding the second friction plate 230, the two sides of the flywheel body 210 are respectively subjected to the action of the first friction plate 330 and the second friction plate 230, so as to improve the performance of the flywheel device. Of course, this utility model is not limited to this. It is also possible to omit the second friction plate 230 and make the flywheel body 210 and the fixed pressure plate 220 into a single molded part.

[0026] Specifically, when the oil pressure entering the oil injection channel 314 is P, if a first friction disc 330 and a second friction disc 230 are provided, the clamping force F on the flywheel body 210 is F=P×S, where S represents the bottom area of ​​the groove, the maximum friction force is f=2×F×η, where η represents the coefficient of friction, and the maximum friction torque is T=f×L, where L represents the equivalent force arm of the flywheel device, i.e., T=2×P×S×η×L.

[0027] In one embodiment of this utility model, the fixed pressure plate 220 includes a fixed shaft portion 221, a fixed outer key portion 222, and a fixed plate body portion 223. The fixed shaft portion 221 is fitted onto the flywheel shaft 100 and abuts against the axial limiting member 110. The fixed plate body portion 223 and the fixed outer key portion 222 are sequentially spaced apart on the outer side of the fixed shaft portion 221 in a direction away from the axial limiting member 110. The second friction plate 230, the flywheel body 210, the first friction plate 330, and the movable pressure plate 32 are also included. The fixed disk body 223, on the side opposite to the axial limiting member 110, is sequentially fitted onto the fixed shaft part 221, so that the fixed disk body 223, the second friction disk 230, the flywheel body 210, the first friction disk 330, and the movable pressure disk 320 are stacked in sequence. The fixed shaft part 221 of the fixed pressure disk 220 extends toward the side of the flywheel body 210 opposite to the fixed disk body 223, allowing the first friction disk 330 and the movable pressure disk 320 to be fitted together, resulting in a better pressing effect. Simultaneously, the inner hole of the movable pressure disk 320 is provided with a movable inner key part 323 that slides with the fixed outer key part 222. That is, the movable pressure disk 320 is positioned corresponding to the fixed outer key part 222, and a key connection structure is formed between the movable inner key part 323 and the fixed outer key part 222, thereby limiting relative rotation between the movable pressure disk 320 and the fixed pressure disk 220 and guiding the sliding of the movable pressure disk 320. Specifically, the movable inner key portion 323 and the fixed outer key portion 222 have a spline fit structure, and the second friction disk 230, the flywheel body 210 and the first friction disk 330 are placed in the gap position between the fixed disk body 223 and the fixed outer key portion 222.

[0028] See Figures 1 to 3In one embodiment of this utility model, the flywheel device further includes a packaging box 400 with a cover opening. The packaging box 400 can be a gearbox or a cutting housing. The flywheel shaft 100 passes through the cover opening and is driven by the cutting device inside the packaging box 400. Specifically, when the packaging box 400 is a gearbox, the gearbox is used to house the two cutting gears 500 in the cutting device. The flywheel shaft 100 can be a section belonging to one of the cutting rollers, or it can be arranged parallel to the two cutting rollers and mesh with the cutting gear 500 through a gear structure. When the packaging box 400 is a cutting housing, the cutting housing is a housing that encloses the part of the two cutting rollers used for cutting operations. The flywheel shaft 100 is a section belonging to one of the cutting rollers. In addition, an axial limiting member 110 is provided on the outside of the packaging box 400, and a cover plate seat 310 is provided on the outside of the cover opening and detachably connected to the packaging box 400. The axial limiting member 110 is a clamping nut threadedly connected to the flywheel shaft 100. In this embodiment, the movable pressing assembly 300 is cleverly positioned on the side of the flywheel body 210 facing the packaging box 400, while the flywheel pressing assembly 200 is positioned on the side of the flywheel body 210 away from the packaging box 400. This allows the cover plate seat 310 on the packaging box 400 to axially stop the movable pressing plate 320, and the cover plate seat 310 is easy to structurally improve. Specifically, it is improved by providing one of a boss portion and a groove portion 313, as well as an oil injection channel 314. On the other hand, the locking of the flywheel pressing assembly 200 located on the outside can be achieved by setting a simple clamping nut, which facilitates disassembly and assembly.

[0029] Specifically, the flywheel shaft 100 is provided with an external thread section 101 that is threadedly connected to the clamping nut. Specifically, the clamping nut can be tightened to abut against the fixed pressure plate 220, and the number of clamping nuts can be at least two. Of course, this utility model is not limited to this. The flywheel pressing assembly 200 can be located on the side of the flywheel body 210 facing the packaging box 400, and the movable pressing assembly 300 can be located on the side of the flywheel body 210 away from the packaging box 400. However, in this case, the cover plate seat 310 in the movable pressing assembly 300 does not need to cover the opening structure. The cover plate seat 310 can be set to rotate together with the flywheel shaft 100.

[0030] It should be noted that in this invention, the packaging box 400 is illustrated as a gearbox, and the flywheel shaft 100 is arranged in parallel with the two cutting rollers and meshes with the cutting gear 500 through a gear structure. The gear structure meshing with the cutting gear 500 can be a shaft segment gear part 103 integrally formed with the flywheel shaft 100, and the shaft segment gear part 103 is placed inside the gearbox. Of course, this invention is not limited to this. In another embodiment, the cutting motor and the two cutting gears 500 in the cutting device can be arranged at the same end of the cutting roller, the flywheel device can be arranged at the other end of the cutting roller, and the flywheel shaft 100 can be a partial shaft segment belonging to one of the cutting rollers. In this case, the packaging box 400 can be a cutting shell.

[0031] like Figure 1 , Figure 7 and Figure 8 As shown, in one embodiment of this utility model, the cover plate seat 310 includes a bearing mounting part 311 and a fixed mounting part 312 arranged sequentially along the axial direction of the flywheel shaft 100. The bearing mounting part 311 extends into the encapsulation box 400 from the cover opening, and a first bearing 104 is provided between the bearing mounting part 311 and the flywheel shaft 100. The fixed mounting part 312 covers the outside of the cover opening and is detachably connected to the encapsulation box 400. The fixed mounting part 312 is provided with one of a boss part and a groove part 313 and an oil injection channel 314. By adding the bearing mounting part 311 and the first bearing 104, the support for the flywheel shaft 100 can be strengthened, and the installation accuracy between the flywheel shaft 100 and the cover plate seat 310 can be ensured. Specifically, the fixed mounting part 312 has a connecting hole 315 around the periphery of the cover opening. Fasteners pass through the connecting hole 315 and are detachably connected to the packaging box 400. The fixed mounting part 312 may have one of a boss part and a groove part 313 at a position corresponding to the packaging opening. The oil injection channel 314 is located between two adjacent connecting holes 315. More specifically, when the packaging box 400 is a gearbox and the flywheel shaft 100 is arranged in parallel with the two cutting rollers and meshes with the cutting gear 500 through a gear structure, the gearbox also has a second bearing 105 on the side away from the cover opening for the flywheel shaft 100 to pass through.

[0032] See Figure 1 , Figure 5 , Figure 6 and Figure 9In one embodiment of this utility model, the outer side of the fixed shaft portion 221 is further provided with a shaft end step portion 224 facing the cover plate seat 310. The shaft end step portion 224 is located on the side of the fixed outer key portion 222 away from the fixed disk body portion 223. The movable pressure plate 320 includes a movable disk shoulder portion 321 and a movable disk body portion 322 arranged sequentially along the axial direction of the flywheel shaft 100. The inner hole of the movable disk body portion 322 is provided with a movable inner key portion 323, and the movable disk shoulder portion 321... The inner diameter of the rotating disc is smaller than that of the main body 322, so that an inner step 324 is formed on the inner wall between the rotating disc shoulder 321 and the main body 322. The rotating disc shoulder 321 is fitted onto the fixed shaft 221 and located between the cover plate seat 310 and the shaft end step 224, so that the inner step 324 and the shaft end step 224 are opposite to each other. The rotating disc shoulder 321 is provided with one of a boss and a groove 313. By adding the shaft end step 224 and the inner step 324, the rotating disc shoulder 321 can be fitted onto the fixed shaft 221, and a stop for the rotating disc shoulder 321 can be formed on the fixed shaft 221.

[0033] Furthermore, since the inner diameter of the movable disc shoulder 321 is smaller than the inner diameter of the movable disc body 322, in order to adapt, the shaft diameter of the shaft segment of the fixed shaft 221 for the movable disc shoulder 321 to be fitted is set to be smaller than the shaft diameter of the fixed outer key 222; the outer diameter of the movable disc shoulder 321 can be set to be smaller than the outer diameter of the movable disc body 322, so that an outer step portion 325 is formed on the outer wall between the movable disc shoulder 321 and the movable disc body 322, and the movable disc shoulder 321 can be set as a boss portion and directly inserted into the groove portion 313 on the cover plate seat 310. Of course, the present invention is not limited to this, and it is also possible to add a boss portion or a groove portion 313 to the movable disc shoulder 321.

[0034] See Figure 1 as well as Figures 4 to 6 In one embodiment of this utility model, the inner hole of the fixed shaft portion 221 is provided with a fixed inner key portion 225, and the flywheel shaft 100 is provided with a shaft-mounted outer key portion 102 that is keyed to the fixed inner key portion 225. By adding the fixed inner key portion 225 and the shaft-mounted outer key portion 102, the anti-rotation installation of the fixed pressure plate 220 on the flywheel shaft 100 can be achieved. Specifically, the fixed inner key portion 225 and the shaft-mounted outer key portion 102 are preferably connected by a spline fit. Of course, this utility model is not limited to this; the fixed pressure plate 220 can also be configured to be interference-fitted onto the flywheel shaft 100.

[0035] See Figure 1 as well as Figures 7 to 9In one embodiment of this utility model, the cover plate seat 310 is provided with a ring-shaped groove 313, and the movable pressure plate 320 is provided with a ring-shaped boss. Both the oil injection channel 314 and the groove 313 are located on the cover plate seat 310, which allows for a shorter length of the oil injection channel 314. The boss is located on the movable pressure plate 320, which requires movement, making the movement and installation of the movable pressure plate 320 simpler and more reliable. Furthermore, the ring-shaped arrangement of the groove 313 and the boss ensures the evenness of the oil pressure applied in all directions. Of course, this utility model is not limited to this; it is also possible to provide a boss on the cover plate seat 310 and a groove 313 on the movable pressure plate 320.

[0036] In one embodiment of this utility model, a sealing element is provided between the inner and outer walls of the groove portion 313 and the boss portion. The addition of the sealing element ensures the sealing performance of the oil. Specifically, sealing grooves 326 for accommodating the sealing element are provided on opposite sides of the boss portion.

[0037] Furthermore, this utility model also provides a flywheel control system, wherein the flywheel control system includes a controller, a hydraulic device, and a flywheel device according to the above description. The hydraulic device is connected to the oil injection channel 314, and the controller is signal-connected to the hydraulic device and configured to control the hydraulic device to adjust the oil pressure applied to the movable pressure plate 320 according to the current working conditions. Since the flywheel control system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0038] Specifically, the hydraulic device includes a hydraulic pump, an oil tank, and a control valve. The oil inlet of the control valve is connected to the hydraulic pump, which pumps the oil in the oil tank to the oil inlet. The oil outlet of the control valve is connected to the oil filling channel 314. The control valve is used to control the pressure. The controller is connected to the hydraulic pump and the control valve respectively.

[0039] In one embodiment of this invention, the flywheel control system further includes a detection component, which includes a speed detection element for detecting the rotational speed of the cutting device. The controller is also signal-connected to the speed detection element and configured to determine the current operating condition based on the detection data from the speed detection element. This allows for automatic differentiation of the current operating condition, enabling the adjustment of the oil pressure applied to the movable pressure plate 320 to better match the current operating condition. Specifically, when transitioning from the start-up condition to the normal operating condition, the rotational speed of the cutting roller of the cutting device can be detected. If the rotational speed of the cutting roller reaches the theoretical speed or more than 90% of the theoretical speed, it can be determined that the normal operating condition has been entered. Compared to the flywheel device, which requires a larger matching oil pressure due to instantaneous acceleration during the start-up condition, the oil pressure required for the flywheel device under normal operating conditions can be reduced. Therefore, when the normal operating condition is determined based on the detection data from the speed detection element, the oil pressure can be adjusted. Meanwhile, if the rotational speed of the cutting roller fluctuates by more than 20% within a preset time (e.g., 1 second), it can be determined that a jamming condition has been entered. At this time, the oil pressure can be adjusted to the minimum, preferably close to 0, to disengage the flywheel device and avoid equipment damage. Of course, this utility model is not limited to this. The jamming condition can also be determined by the working pressure of the cutting device reaching the overflow pressure or by identification through a vision system.

[0040] In one embodiment of this utility model, the controller is further configured to receive start commands, normal stop commands, and emergency stop commands, etc. The device is provided with buttons or knobs corresponding to the corresponding commands to facilitate the triggering of the commands. When the controller receives different commands, it is configured to control the hydraulic device to adjust the oil pressure.

[0041] Furthermore, the controller in this invention is configured to execute a flywheel control method, wherein the flywheel control method is applied to the flywheel control system described above and includes: In step S110, upon receiving the start command and entering the start-up condition, the hydraulic device is controlled to accelerate the application of hydraulic pressure to the movable pressure plate 320, wherein the accelerating hydraulic pressure is greater than the normal operating hydraulic pressure.

[0042] Specifically, when a start command is input to the controller, the cutting device starts and drives the flywheel device to start, entering the start-up condition. The acceleration during start-up is significant, so to match the start-up condition, the hydraulic pressure under start-up conditions needs to be set to an acceleration hydraulic pressure P1 that is greater than the normal operating hydraulic pressure P2. It should be noted that the normal operating hydraulic pressure P1 is the hydraulic pressure set to match the normal operating condition, and the acceleration hydraulic pressure P1 should be set to ensure that the force on each part of the cutting system does not exceed the allowable value at this time. More specifically, when the maximum allowable torque of the flywheel shaft 100 is T1, P1 should be set to P1 ≤ T1 / (2 × S × η × L).

[0043] Step S120: When the starting speed reaches the set speed, determine that the normal working condition has been entered and control the hydraulic device to apply normal working oil pressure to the movable pressure plate 320.

[0044] Understandably, the cutting roller of the cutting device can be equipped with a speed detection element. After entering the start-up condition, the speed of the cutting roller is detected. If the starting speed of the cutting roller reaches the set speed, which can be more than 90% of the theoretical speed, then it is confirmed that the normal working condition has been entered. At this time, the normal working oil pressure P2 depends on the torque required for the cutting operation, which is set as T2. T2 is less than T1, then P2 = T2 / (2 × S × η × L).

[0045] In step S130, upon receiving a normal stop command and entering a normal stop condition, the hydraulic device is controlled to apply deceleration oil pressure to the movable pressure plate 320, wherein the deceleration oil pressure is lower than the normal operating oil pressure.

[0046] Specifically, when a normal stop command is input to the controller, the normal stop condition is determined. At the moment the cutting device stops, due to the inertia of the flywheel device, the cutting motor may continue to run passively, which may lead to problems such as cavitation and large return oil impact. Therefore, when the normal stop condition is entered, the oil pressure can be adjusted to the deceleration oil pressure P3. The deceleration oil pressure P3 can be set to a small oil pressure to ensure that the equipment stops smoothly. The initial preset of P3 can be P3 = 0.5 × P2.

[0047] In addition, flywheel control methods also include: In step S140, upon receiving an emergency stop command and entering the emergency stop condition, the hydraulic device is controlled to apply the maximum system oil pressure to the movable pressure plate 320.

[0048] Furthermore, when an emergency stop command is input to the controller, it is determined that an emergency stop condition has been entered. The emergency stop command is usually triggered when the equipment malfunctions and must be stopped as soon as possible. Therefore, in order to match the emergency stop condition, the hydraulic pressure can be adjusted to the system's maximum hydraulic pressure P4 so that the equipment can be stopped as quickly as possible.

[0049] In addition, flywheel control methods also include: Step 150: If it is determined that the device has entered a stuck condition, control the hydraulic device to apply the minimum system oil pressure to the movable pressure plate 320.

[0050] Furthermore, if the rotational speed of the cutting roller fluctuates by more than 20% within a preset time (e.g., 1 second), or if the working pressure of the cutting device reaches the overflow pressure, or if a jamming phenomenon is detected by the vision system, it can be determined that a jamming condition has been entered. At this time, the oil pressure can be adjusted to the minimum. The initial preset minimum oil pressure P5 of the system can be (0~0.1×P2) to disengage the flywheel device as soon as possible and avoid equipment damage.

[0051] Therefore, the relationship between the pressures of the various oils can be P4 > P1 > P2 > P3 > P5.

[0052] Furthermore, this utility model also provides a sugarcane harvester, wherein the sugarcane harvester includes the flywheel device according to the above-described embodiments. Since the sugarcane harvester adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0053] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A flywheel device, characterized in that, The flywheel device includes: Flywheel shaft (100); A flywheel press-fit assembly (200) is disposed on the flywheel shaft (100) and has a flywheel body (210); A movable press-fit assembly (300) is fitted onto the flywheel shaft (100) and includes a cover plate seat (310), a movable pressure plate (320), and a first friction plate (330). The first friction plate (330) is positioned between the movable pressure plate (320) and the flywheel body (210). The cover plate seat (310) provides axial positioning on the side of the movable pressure plate (320) away from the first friction plate (330). One of the cover plate seat (310) and the movable pressure plate (320) is provided with a boss portion, and the other is provided with a groove portion (313) into which the boss portion extends. The cover plate seat (310) is provided with an oil injection channel (314) communicating with the groove portion (313).

2. The flywheel device according to claim 1, characterized in that, An axial limiting member (110) is provided on the flywheel shaft (100). The flywheel press assembly (200) is fitted onto the flywheel shaft (100) and a fixed pressure plate (220), a second friction plate (230) and the flywheel body (210) are stacked sequentially along the axial direction of the flywheel shaft (100). The fixed pressure plate (220) abuts against the axial limiting member (110).

3. The flywheel device according to claim 2, characterized in that, The fixed pressure plate (220) includes a fixed shaft portion (221), a fixed external key portion (222), and a fixed plate body portion (223). The fixed shaft portion (221) is fitted onto the flywheel shaft (100) and abuts against the axial limiting member (110). The fixed plate body portion (223) and the fixed external key portion (222) are sequentially spaced apart on the outer side of the fixed shaft portion (221) in a direction away from the axial limiting member (110). The second friction plate (230), the flywheel body (210), the first friction plate (330), and the movable pressure plate (320) are sequentially fitted onto the fixed shaft portion (221) on the side of the fixed plate body portion (223) away from the axial limiting member (110). The inner hole of the movable pressure plate (320) is provided with a movable inner key portion (323) that is slidably connected to the fixed external key portion (222).

4. The flywheel device according to claim 2, characterized in that, The flywheel device also includes a packaging box (400) with a cover opening. The flywheel shaft (100) extends through the cover opening into the packaging box (400) and is driven to connect with the cutting device inside the packaging box (400). The axial limiting member (110) is located on the outside of the packaging box (400). The cover plate seat (310) is placed on the outside of the cover opening and is detachably connected to the packaging box (400). The axial limiting member (110) is a clamping nut that is threadedly connected to the flywheel shaft (100).

5. The flywheel device according to claim 4, characterized in that, The cover plate seat (310) includes a bearing mounting part (311) and a fixed mounting part (312) arranged sequentially along the axial direction of the flywheel shaft (100). The bearing mounting part (311) extends into the packaging box (400) from the cover opening, and a first bearing (104) is provided between the bearing mounting part (311) and the flywheel shaft (100). The fixed mounting part (312) covers the outside of the cover opening and is detachably connected to the packaging box (400). The fixed mounting part (312) is provided with one of the boss part and the groove part (313) and the oil injection channel (314).

6. The flywheel device according to claim 3, characterized in that, The outer side of the fixed shaft portion (221) is also provided with a shaft end step portion (224) facing the cover plate seat (310). The shaft end step portion (224) is located on the side of the fixed outer key portion (222) away from the fixed disk body portion (223). The movable pressure plate (320) includes a movable disk shoulder portion (321) and a movable disk body portion (322) arranged sequentially along the axial direction of the flywheel shaft (100). The inner hole of the movable disk body portion (322) is provided with the movable inner key portion (323). The inner hole diameter of the movable disk shoulder portion (321) is smaller than that of the fixed outer key portion (223). The inner diameter of the movable disk body (322) is such that an inner step portion (324) is formed on the inner wall between the movable disk shoulder portion (321) and the movable disk body (322). The movable disk shoulder portion (321) is fitted onto the fixed shaft portion (221) and located between the cover plate seat (310) and the shaft end step portion (224), such that the inner step portion (324) and the shaft end step portion (224) are opposite to each other. The movable disk shoulder portion (321) is provided with one of the boss portion and the groove portion (313).

7. The flywheel device according to claim 3, characterized in that, The inner hole of the fixed shaft part (221) is provided with a fixed inner key part (225), and the flywheel shaft (100) is provided with a shaft-mounted outer key part (102) that is keyed to the fixed inner key part (225).

8. The flywheel device according to any one of claims 1 to 7, characterized in that, The cover plate seat (310) is provided with a groove (313) arranged in an annular shape, and the movable pressure plate (320) is provided with a boss arranged in an annular shape.

9. The flywheel device according to any one of claims 1 to 7, characterized in that, The inner and outer walls of the groove (313) are both provided with sealing elements between the groove and the boss.

10. A sugarcane harvester, characterized in that, The sugarcane harvester includes a flywheel device according to any one of claims 1 to 9.

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