Hydraulic driving device for feeding roller of silage maize harvester

Abstract

The utility model discloses a hydraulic driving device for feeding rollers of a silage maize harvester, which belongs to the field of silage maize harvester equipment, solves the problems of complicated structure and large size of a driving device in the prior art, and adopts the technical scheme that the silage maize harvester comprises two groups of feeding roller components which are oppositely arranged, rollers in each group of feeding roller components are in transmission connection through a transmission structure, the feeding transmission device of the silage maize harvester comprises two hydraulic motors for respectively driving the two feeding roller components, the steering directions of the two hydraulic motors are different, and the hydraulic motors are in transmission connection with the transmission structures or the rollers of the feeding roller components. The structure of the driving device is simplified, and the size of the driving device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of silage harvester equipment, and in particular to a hydraulic drive device for the feeding roller of a silage harvester. Background Technology

[0002] A silage harvester is an agricultural harvesting machine mainly used for harvesting silage crops such as corn and sorghum. Existing silage harvesters typically include two sets of feed roller assemblies arranged opposite each other. The power to the two sets of feed roller assemblies is usually transferred from the engine to the two sets of feed roller assemblies through mechanical transmission methods such as belt drive. The transmission path is long and the power transmission efficiency is low. Of course, there are also utility model patents such as CN221010889U that disclose a feeding transmission device for silage harvesters. The power motor is connected to the gearbox through a drive shaft, and the two sets of feed roller assemblies are connected to the gearbox through drive shafts respectively. The design and manufacturing of the gearbox is more complicated, which leads to an increase in the overall cost of the equipment. In addition, the gearbox is larger and occupies more space, which increases the size of the entire silage harvester. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic drive device for the feeding roller of a silage harvester, which solves the problems of complex structure and large size of the drive device in the prior art, and simplifies the structure and reduces the size of the drive device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic drive device for the feeding rollers of a silage harvester, wherein the silage harvester includes two sets of feeding roller assemblies arranged opposite to each other, and the rollers in each set of feeding roller assemblies are connected by a transmission structure. The feeding transmission device of the silage harvester includes two hydraulic motors that drive the two feeding roller assemblies respectively. The two hydraulic motors rotate in different directions, and the hydraulic motors are connected to the transmission structure or the rollers of the feeding roller assemblies.

[0005] After adopting the above technical solution, this utility model has the following advantages: Compared with traditional mechanical transmission methods such as belt drive or gear drive, the hydraulic motor can more directly transmit power to the feed roller assembly, reducing energy loss in intermediate links. The hydraulic motor drive can greatly simplify the transmission structure, reduce the number of parts, and make maintenance more convenient and quick, improving power transmission efficiency and performance stability. The hydraulic motor is cheaper than the gearbox, thus reducing the overall machine cost. In addition, the hydraulic motor itself can achieve stepless speed regulation, and the power output of the hydraulic motor can be flexibly adjusted according to actual needs, which helps to improve work efficiency. The hydraulic motor is small in size and light in weight, and can achieve high torque output in a limited space, thus effectively reducing the overall machine size, improving the flexibility and adaptability of the machine in field operations, and facilitating maintenance. In the event of a malfunction in field operations, maintenance personnel can easily disassemble and replace the hydraulic motor without hoisting or returning it to the factory.

[0006] Furthermore, the transmission structure includes a gearbox and a sprocket box, wherein the rollers in one set of feed roller assemblies are connected by a gearbox, and the rollers in the other set of feed roller assemblies are connected by a sprocket box.

[0007] By adopting the aforementioned technical solution and applying different types of transmission structures to different feed roller assemblies, a more suitable transmission method can be selected according to the specific working requirements of each part, which improves the flexibility and applicability of the system. The gearbox can provide a more stable transmission ratio and a higher load-bearing capacity, while the sprocket box has a simpler structure and is easier to install, which not only ensures transmission efficiency but also enhances the durability and reliability of the system.

[0008] Furthermore, the gearbox includes a power input end and at least two power output ends, the hydraulic motor is input connected to the power output end, and the roller is drive-connected to the power output end.

[0009] Using the aforementioned technical solution, the hydraulic motor provides power to the gearbox through a single power input end. The gearbox can effectively distribute the power, ensuring that each power output end can obtain stable and appropriate force, thereby driving the corresponding roller.

[0010] Furthermore, the hydraulic motor and gearbox are located on different sides of the forage harvester, and the hydraulic motor is connected to the power input end via a universal joint.

[0011] By adopting the aforementioned technical solution, placing the hydraulic motor and gearbox on different sides of the forage harvester allows for more efficient use of the machine's internal space, resulting in a more compact overall design. This helps reduce the harvester's size and improves its flexibility during field operations. Separate placement also reduces interference between the hydraulic motor and gearbox, especially in confined spaces, maximizing installation and operating space for each component. The universal joint connection facilitates easier adjustment of the relative positions of the hydraulic motor and gearbox. The universal joint can compensate for angular changes within a certain range, ensuring smooth power transmission even when the hydraulic motor and gearbox are not on the same axis. Compared to long-distance direct drive, the universal joint connection transmits power more efficiently.

[0012] Furthermore, the gearbox includes an intermediate gear, an input gear fixedly connected to the power input end, and an output gear fixedly connected to the power output end, wherein the input gear and the output gear mesh with the intermediate gear respectively.

[0013] The above technical solution, through the participation of intermediate gears, enables multi-stage speed reduction, resulting in smoother and more efficient power transmission. It provides a larger reduction ratio, achieving high torque output. The intermediate gears also act as a buffer, reducing the impact of sudden overloads on the gearbox and improving system reliability. Furthermore, the intermediate gears allow for power distribution to multiple output ends, meeting the speed and torque requirements of different rollers.

[0014] Furthermore, the diameter of the input gear is smaller than the diameter of the output gear.

[0015] The above technical solution can provide a greater output torque to the roller.

[0016] Furthermore, the sprocket box includes at least two drive sprockets and a drive chain for connecting the two drive sprockets, wherein the drive sprockets are connected to rollers via a drive connection.

[0017] Through the above technical solutions, chain drives have high efficiency and low energy loss, ensuring efficient power transmission.

[0018] Furthermore, the hydraulic motor and sprocket box are located on different sides of the forage machine, with one end of one of the rollers being connected to the hydraulic motor and the other end of the roller being connected to the drive sprocket.

[0019] Through the above technical solution, the hydraulic motor directly drives one of the rollers, reducing intermediate transmission links, improving power transmission efficiency, and ensuring that the roller receives sufficient driving force. The hydraulic motor and sprocket box are located on opposite sides, allowing for more efficient use of the internal space of the silage harvester, resulting in a more compact overall design, reduced machine size and weight, and minimizing interference between the hydraulic motor and sprocket box, thus providing sufficient installation and operating space for each component.

[0020] Furthermore, the gearbox and sprocket box are located on the same side of the forage harvester.

[0021] By concentrating the gearbox and sprocket box on the same side using the above technical solutions, the internal space of the silage harvester can be utilized more rationally, making the overall design more compact and reducing the size and weight of the machine.

[0022] Furthermore, the two hydraulic motors are located on the same side of the forage harvester.

[0023] By concentrating the two hydraulic motors on the same side using the above technical solution, the internal space of the silage harvester can be utilized more rationally, making the overall design more compact, reducing the size and weight of the machine. The centralized arrangement also simplifies the installation process, allowing the installation of both hydraulic motors to be completed at once, and also facilitates inspection and maintenance. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the hydraulic drive device for the feeding roller of the silage harvester according to this utility model;

[0026] Figure 2 This is a schematic diagram of the hydraulic drive device for the feeding roller of the silage harvester from another perspective.

[0027] Figure 3 This is a partial structural schematic diagram of the hydraulic drive device for the feeding roller of the silage harvester according to this utility model;

[0028] Figure 4 This is a partial structural schematic diagram of the hydraulic drive device for the feeding roller of the silage harvester according to another perspective.

[0029] In the diagram, 1 is the upper motor; 2 is the lower motor; 3 is the universal joint; 4 is the rear upper roller; 5 is the front upper roller; 6 is the gearbox; 61 is the input gear; 62 is the intermediate gear; 63 is the output gear; 7 is the rear lower roller; 8 is the sprocket box; 81 is the drive sprocket; 82 is the drive chain; and 9 is the front lower roller. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0031] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0032] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0033] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0034] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0035] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0036] like Figures 1 to 4As shown, this utility model provides a hydraulic drive device for the feeding rollers of a silage harvester, which is mainly applicable to silage harvesters. The silage harvester includes two sets of feeding roller assemblies arranged opposite each other. The rollers in each set of feeding roller assemblies are connected by a transmission structure. The feeding transmission device of the silage harvester includes two hydraulic motors that drive the two feeding roller assemblies respectively. The two hydraulic motors rotate in different directions and are connected to the transmission structure or the rollers of the feeding roller assemblies.

[0037] Compared to traditional mechanical transmission methods such as belt drives or gear drives, hydraulic motors can directly transmit power to the feed roller assembly, reducing energy loss in intermediate stages. Hydraulic motor drives significantly simplify the transmission structure, reduce the number of parts, and make maintenance more convenient and faster, improving power transmission efficiency and performance stability. Hydraulic motors are also cheaper than gearboxes, thus reducing the overall machine cost. Furthermore, hydraulic motors can achieve stepless speed regulation, and their power output can be flexibly adjusted according to actual needs, helping to improve work efficiency. Hydraulic motors are small and lightweight, achieving high torque output within a limited space, thus effectively reducing the overall machine size, improving the machine's flexibility and adaptability in field operations, and facilitating maintenance. In the event of a malfunction during field operations, maintenance personnel can easily disassemble and replace the hydraulic motor without hoisting or returning it to the factory.

[0038] The two hydraulic motors are located on the same side of the forage harvester. This centralized arrangement of the two motors on one side allows for more efficient use of the internal space, resulting in a more compact overall design, reduced machine size and weight, and simpler installation. It also facilitates inspection and maintenance by allowing both motors to be installed in one go.

[0039] In this embodiment, one hydraulic motor is directly connected to the roller drive in a set of feed roller assemblies, and the other hydraulic motor is connected to the drive structure in another set of feed roller assemblies.

[0040] Specifically, the transmission structure includes a gearbox 6 and a sprocket box 8. The rollers in one set of feed roller assemblies are connected via the gearbox 6, while the rollers in the other set are connected via the sprocket box 8. By applying different types of transmission structures to different feed roller assemblies, a more suitable transmission method can be selected according to the specific working requirements of each part, improving the system's flexibility and applicability. The gearbox 6 provides a relatively stable transmission ratio and high load-bearing capacity, while the sprocket box 8 has a simpler structure and is easier to install, ensuring both transmission efficiency and enhanced system durability and reliability.

[0041] The gearbox 6 and sprocket box 8 are located on the same side of the forage harvester. By concentrating the gearbox 6 and sprocket box 8 on the same side, the internal space of the forage harvester can be utilized more efficiently, making the overall design more compact and reducing the size and weight of the machine.

[0042] To make the forage harvester more compact, the hydraulic motor and gearbox 6 are located on different sides of the harvester. This allows for more efficient use of the internal space, resulting in a more compact overall design, which helps reduce the size of the harvester and improves its flexibility in field operations. The separate arrangement also reduces interference between the hydraulic motor and gearbox 6, especially in confined spaces, ensuring sufficient installation and operating space for each component.

[0043] The gearbox 6 includes one power input end and at least two power output ends. A hydraulic motor is connected to the power output ends via an input connection, and rollers are connected to the power output ends via a transmission connection. The hydraulic motor supplies power to the gearbox 6 through a single power input end. The gearbox 6 internally allows for effective power distribution, ensuring that each power output end receives stable and appropriate force to drive the corresponding roller.

[0044] To achieve the transmission connection between the hydraulic motor and gearbox 6, the hydraulic motor is connected to the power input end via a universal joint 3. This allows for easier adjustment of the relative positions of the hydraulic motor and gearbox 6. The universal joint 3 can compensate for angular changes within a certain range, ensuring smooth power transmission even if the hydraulic motor and gearbox 6 are not on the same axis. Compared to long-distance direct transmission, the universal joint 3 connection can transmit power more effectively.

[0045] Specifically, gearbox 6 includes an intermediate gear 62, an input gear 61 fixedly connected to the power input end, and an output gear 63 fixedly connected to the power output end. The input gear 61 and output gear 63 mesh with the intermediate gear 62. The intermediate gear 62 enables multi-stage speed reduction, resulting in smoother and more efficient power transmission. It provides a larger reduction ratio and achieves high torque output. The intermediate gear 62 also acts as a buffer, reducing the impact of sudden overloads on gearbox 6 and improving system reliability. Furthermore, the intermediate gear 62 allows for power distribution to multiple output ends, meeting the speed and torque requirements of different rollers.

[0046] To increase the output torque of the roller, the diameter of the input gear 61 is smaller than the diameter of the output gear 63. This allows for a greater output torque to be provided to the roller.

[0047] Furthermore, the sprocket box 8 includes at least two drive sprockets 81 and a drive chain 82 for connecting the two drive sprockets 81. The drive sprockets 81 are connected to roller drives. Chain drives have high efficiency and low energy loss, ensuring efficient power transmission.

[0048] To further refine the compact design of the silage harvester, the hydraulic motor and sprocket box 8 are located on opposite sides. One end of one roller is connected to the hydraulic motor drive, while the other end of the other roller is connected to the drive sprocket 81. This reduces intermediate transmission links, improves power transmission efficiency, and ensures sufficient driving force for the rollers. Separating the hydraulic motor and sprocket box 8 on both sides allows for more efficient use of the internal space, resulting in a more compact overall design, reduced machine size and weight, and minimizes interference between the hydraulic motor and sprocket box 8, thus providing ample installation and operating space for each component.

[0049] For ease of understanding, in this embodiment, one of the feed roller assemblies includes a rear upper roller 4 and a front upper roller 5, and the other feed roller assembly includes a rear lower roller 7 and a front lower roller 9. The front upper roller 5 and the front lower roller 9 are arranged opposite to each other, and the rear upper roller 4 and the rear lower roller 7 are arranged opposite to each other. The two hydraulic motors are an upper motor 1 and a lower motor 2. The upper motor 1 rotates counterclockwise, and the lower motor 2 rotates clockwise. The upper motor 1 is directly connected to the power input end through a universal joint 3, and the two power output ends are respectively connected to the front upper roller 5 and the rear lower roller 7, driving the front upper roller 5 and the rear lower roller 7 to rotate counterclockwise. The lower motor 2 is directly connected to the rear lower roller 7, and the rear lower roller 7 acts as the driving roller and drives the front lower roller 9 to rotate clockwise through a sprocket box 8.

[0050] It should be noted that the two hydraulic motors can also be started and stopped simultaneously via solenoid valves, pumps, and control systems.

[0051] Understandably, in other embodiments, both hydraulic motors can be connected to the roller drives in both sets of feed roller assemblies. Independent drive can reduce intermediate transmission links and lower the complexity of the transmission system.

[0052] Understandably, in other embodiments, both hydraulic motors can be connected to the transmission structure in both sets of feed roller assemblies. This transmission structure enables multi-point drive, ensuring synchronous operation of multiple rollers.

[0053] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A hydraulic drive device for the feed rollers of a silage harvester, the silage harvester comprising two sets of feed roller assemblies arranged opposite each other, characterized in that, The rollers in each set of feed roller assemblies are connected by a transmission structure. The forage machine feeding transmission device includes two hydraulic motors that drive two feed roller assemblies respectively. The two hydraulic motors rotate in different directions and are connected to the transmission structure or the rollers of the feed roller assemblies.

2. The hydraulic drive device for the feed roller of the silage harvester according to claim 1, characterized in that, The transmission structure includes a gearbox (6) and a sprocket box (8). The rollers in one set of feed roller assemblies are connected by the gearbox (6), and the rollers in the other set of feed roller assemblies are connected by the sprocket box (8).

3. The hydraulic drive device for the feed roller of the silage harvester according to claim 2, characterized in that, The gearbox (6) includes a power input end and at least two power output ends. The hydraulic motor is connected to the power output end via input, and the roller is connected to the power output end via transmission.

4. The hydraulic drive device for the feed roller of the silage harvester according to claim 3, characterized in that, The hydraulic motor and gearbox (6) are located on different sides of the silage harvester, and the hydraulic motor is connected to the power input end via a universal joint (3).

5. The hydraulic drive device for the feed roller of the silage harvester according to claim 3, characterized in that, The gearbox (6) includes an intermediate gear (62), an input gear (61) fixedly connected to the power input end, and an output gear (63) fixedly connected to the power output end. The input gear (61) and the output gear (63) mesh with the intermediate gear (62) respectively.

6. The hydraulic drive device for the feed roller of the silage harvester according to claim 5, characterized in that, The diameter of the input gear (61) is smaller than the diameter of the output gear (63).

7. The hydraulic drive device for the feed roller of the silage harvester according to claim 2, characterized in that, The sprocket box (8) includes at least two drive sprockets (81) and a drive chain (82) for connecting the two drive sprockets (81), wherein the drive sprockets (81) are connected to rollers.

8. The hydraulic drive device for the feed roller of the silage harvester according to claim 7, characterized in that, The hydraulic motor and sprocket box (8) are located on different sides of the forage machine, with one end of one of the rollers being driven by the hydraulic motor and the other end of the roller being driven by the drive sprocket (81).

9. The hydraulic drive device for the feed roller of the silage harvester according to claim 2, characterized in that, The gearbox (6) and sprocket box (8) are located on the same side of the forage machine.

10. The hydraulic drive device for the feed roller of the silage harvester according to claim 1, characterized in that, The two hydraulic motors are located on the same side of the forage harvester.

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