Four-shaft transmission device

Abstract

The utility model relates to the technical field of mechanical transmission, and particularly discloses a four-shaft transmission device which comprises a transmission assembly, a clutch assembly and four transmission shaft systems arranged in parallel. The transmission shaft systems are provided with shaft sets, and the four transmission shaft systems are in transmission connection through transmission assemblies. One end of the shaft group of the first transmission shaft system is connected with an external chassis engine, and the other end of the shaft group of the first transmission shaft system is connected with an external wheel assembly or an external plunger pump of a vehicle platform; one end of the shaft group of the second transmission shaft system, one end of the shaft group of the third transmission shaft system and one end of the shaft group of the fourth transmission shaft system are respectively connected with three auxiliary driving sources of an external vehicle platform; the other end of the shaft group of the second transmission shaft system, the other end of the shaft group of the third transmission shaft system and the other end of the shaft group of the fourth transmission shaft system are all connected with a plunger pump of an external vehicle platform; and the clutch assembly is used for controlling on-off of power transmission between each shaft group and the transmission assembly.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, and in particular discloses a four-axis transmission device. Background Technology

[0002] In the field of special-purpose vehicles and multi-functional equipment, traditional transmission systems typically employ a single power source or a simple combination of multiple power sources, making it difficult to meet the diverse operational needs under complex conditions. For example, in emergency rescue and field engineering scenarios, vehicles must not only meet driving requirements but also provide sufficient power to hydraulic pumps, drilling equipment, and other devices mounted on the platform. Existing transmission systems cannot flexibly allocate power, leading to energy waste and low operational efficiency. Furthermore, the structural layout of traditional transmission systems often lacks optimization, with significant spatial interference between shafts and transmission components. This not only increases design and assembly complexity but also reduces transmission stability and reliability. The poor versatility and maintainability of key components such as gear drives and shaft connections mean that repairs and replacements are time-consuming and labor-intensive, severely impacting equipment operation. Traditional transmission systems also typically require large power and transmission components, which are usually produced at low cost.

[0003] Furthermore, with increasingly stringent energy conservation and environmental protection requirements, the limitations of single power sources are becoming increasingly apparent. Traditional devices cannot achieve efficient synergy of power sources and energy recovery and utilization, nor can they dynamically adjust their operating modes when the load changes. This makes it difficult to meet the needs of long-term continuous operation of equipment, and also fails to adapt to the stringent emission and energy consumption standards in different environments, thus limiting the application scope and performance improvement of special equipment. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a four-axis transmission device.

[0005] To achieve the above objectives, this utility model provides a four-axis transmission device, comprising a transmission assembly, a clutch assembly, and four parallel transmission shaft systems. Each transmission shaft system has shaft groups, and the four transmission shaft systems are connected via the transmission assembly. One end of the shaft group of the first transmission shaft system is connected to an external chassis engine, and the other end is connected to an external wheel assembly or a piston pump of an external platform. One end of the shaft groups of the second, third, and fourth transmission shaft systems are respectively connected to three auxiliary drive sources of the external platform, and the other ends of the shaft groups of the second, third, and fourth transmission shaft systems are all connected to the piston pump of the external platform. The clutch assembly controls the on / off power transmission between each shaft group and the transmission assembly.

[0006] Furthermore, the shaft groups of the second, third, and fourth transmission shaft systems are arranged coplanarly.

[0007] Furthermore, all three auxiliary drive sources are either auxiliary motors or hybrid power sources consisting of an engine and an auxiliary motor.

[0008] Furthermore, the first auxiliary drive source is a hybrid power source consisting of an engine and an auxiliary motor, while the second and third auxiliary drive sources are both auxiliary motors.

[0009] Furthermore, the four shaft groups and the transmission components form a T-shaped array structure, and the shaft group of the first transmission shaft system and the shaft groups of any two remaining transmission shaft systems are arranged into a triangular prism structure.

[0010] Furthermore, the shaft assembly includes a rotating shaft and a first gear disk, the first gear disk being coaxially fixed on the rotating shaft; the transmission component has a second gear disk, which meshes with the first gear disks of two adjacent shaft assemblies to transmit power.

[0011] Furthermore, both the first gear disk and the second gear disk are provided with gear teeth and a central hole. The first gear disk and the second gear disk are driven by meshing gear teeth, and the first gear disk is coaxially mounted on the rotating shaft through the central hole.

[0012] Furthermore, the end of the shaft assembly is fixed with a flange, which includes a toothed portion on the inner ring and multiple mounting holes arranged in a ring array on the outer ring. The toothed portion and the corresponding toothed portion of the rotating shaft end are engaged by spline meshing or involute tooth profile to transmit torque. The multiple mounting holes are detachably connected to an auxiliary drive source, an external wheel assembly, or a piston pump of an external platform by bolt fastening.

[0013] Furthermore, the clutch assembly includes multiple clutch components disposed on the shaft assembly. The clutch components are one or a combination of two of the following: a manual clutch or an automatic clutch. The manual clutch is a dry single-plate clutch or a dry multi-plate clutch; the automatic clutch is one of the following: an electromagnetic clutch, a hydraulic clutch, a double-plate reinforced clutch, or a push-plate clutch.

[0014] Furthermore, the four-axis drive unit is equipped with an energy management module, which is electrically connected to the clutch assembly, chassis engine, and auxiliary drive sources. It can dynamically adjust the working mode of the chassis engine and the three auxiliary drive sources according to the working requirements of the external wheel assembly or the piston pump of the external platform and the battery power status. It controls some of the auxiliary drive sources to drive the external wheel assembly or the piston pump of the external platform, while controlling other auxiliary drive sources to generate electricity and charge.

[0015] The beneficial effects of this utility model are:

[0016] (1) High-efficiency power distribution and multi-mode operation: The chassis engine and multiple auxiliary drive sources are integrated. Power transmission is flexibly controlled through the clutch and transmission components. Power can be distributed to the wheel components or the platform plunger pump as needed, realizing multi-mode switching such as vehicle driving and platform operation. The energy management module can also dynamically adjust the working mode of the drive source according to the load and power, improve energy utilization and reduce operating costs.

[0017] (2) Compact and stable structure with convenient maintenance: The four transmission shafts are arranged in parallel, and some shaft groups are coplanar to form a T-shaped and triangular prism structure. The spatial layout is compact and regular, which reduces interference while enhancing structural strength and reducing vibration and noise. The gear transmission assembly is equipped with a standardized gear disk design, which provides precise and efficient transmission and facilitates adjustment of the transmission ratio and maintenance; the detachable connection of the flange further improves the efficiency of equipment installation and maintenance.

[0018] (3) High reliability and strong adaptability: Multiple types of clutches provide diverse operating methods to adapt to different working conditions and have fault redundancy function; multiple drive sources work together, combined with energy recovery and power generation and charging functions, to enhance system reliability and maintain operation even if some power sources fail. In addition, the device can adapt to complex environments and output power stably in different scenarios, with a wide range of applications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a four-axis transmission device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the flange of this utility model.

[0022] The reference numerals in the accompanying drawings include: 1, transmission shaft system; 2, transmission assembly; 21, second gear disk; 3, clutch assembly; 31, clutch element; 4, shaft group; 41, rotating shaft; 42, first gear disk; 5, gear teeth; 6, center hole; 7, flange; 71, mounting hole; 72, toothed portion. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Please see Figures 1 to 3As shown, this utility model discloses a four-axis transmission device, including a transmission assembly 2, a clutch assembly 3, and four parallel transmission shaft systems 1. Each transmission shaft system 1 has a shaft group 4, and the four transmission shaft systems 1 are connected to each other through the transmission assembly 2. One end of the shaft group 4 of the first transmission shaft system 1 is connected to an external chassis engine, and the other end of the shaft group 4 of the first transmission shaft system 1 is connected to an external wheel assembly or a piston pump of an external platform. One end of the shaft group 4 of the second, third, and fourth transmission shaft systems 1 is used to connect to three auxiliary drive sources of the external platform, respectively, and the other ends of the shaft groups 4 of the second, third, and fourth transmission shaft systems 1 are all connected to the piston pump of the external platform. The clutch assembly 3 is used to control the on / off power transmission between each shaft group 4 and the transmission assembly 2.

[0025] In practical use, this device integrates the power of the chassis engine and the power of the three auxiliary drive sources of the platform. The first drive shaft system 1 connects to the chassis engine, while the other three drive shaft systems 1 connect to the auxiliary drive sources, and these shaft systems are connected by a transmission assembly 2. This allows for flexible distribution of power from different power sources to external wheel assemblies or components such as the platform's plunger pump, improving the flexibility and adaptability of power usage. Since the first drive shaft system 1 can work with both external wheel assemblies (for vehicle movement) and the platform's plunger pump (potentially for platform-related work, such as hydraulic drive for specialized equipment), while the other three shaft systems can also power the plunger pump, the device can achieve multiple operating modes. For example, when the vehicle is moving, the chassis engine can primarily drive the wheels; when performing platform-related work, multiple power sources can be integrated to provide sufficient power to the plunger pump to meet the requirements of different working conditions.

[0026] The clutch assembly 3 controls the on / off connection of power transmission between each shaft group 4 and the transmission assembly 2. This allows for precise control of the power transmission path and timing, avoiding unnecessary power loss and improving transmission efficiency. For example, in certain situations, when a power source is not needed, the clutch assembly 3 can disconnect it from the transmission assembly 2, thereby reducing energy waste. The parallel arrangement of the four transmission shafts 1 makes the overall layout of the transmission device more regular, which is beneficial to improving structural stability. Simultaneously, the transmission assembly 2 connects the shafts to form a relatively stable transmission system, ensuring the reliability of power transmission and reducing the probability of failures due to structural inconsistencies.

[0027] Specifically, the shaft group 4 of the second transmission shaft system 1, the shaft group 4 of the third transmission shaft system 1, and the shaft group 4 of the fourth transmission shaft system 1 are arranged in the same plane.

[0028] In practical use, the three shaft groups 4 are arranged coplanarly, making the spatial layout of this part of the structure more regular and orderly, which is conducive to the compact design of the overall device. Compared with non-coplanar arrangement, coplanar arrangement can reduce the interference between shafts in the spatial dimension, reduce the difficulty of structural design and assembly, and may also save some space, allowing the device to be arranged more rationally in a limited space, which is of great significance for application scenarios with limited installation space. Since the three shaft groups 4 are on the same plane, the design and installation of the transmission components 2 (such as gears, chains, etc.) connecting them are more convenient. The transmission components 2 can be laid out and installed in the same plane, reducing complex spatial positioning and debugging work, improving the installation accuracy and stability of the transmission components 2, and thus improving the transmission efficiency and reliability of the entire transmission system.

[0029] The three coplanar shaft groups 4 generate forces and torques that are relatively evenly distributed within the same plane during operation, which helps to enhance the balance of the entire transmission system. This reduces vibration and noise caused by uneven force distribution on the shafts, extends the service life of the device, and also improves the stability and comfort of the equipment during operation, which is especially important for applications requiring high operational smoothness (such as precision work equipment). Simplified structure and installation, as well as optimized spatial layout, often lead to reduced manufacturing costs. On the one hand, it reduces design and assembly complexity, lowering labor and time costs; on the other hand, a more compact and rational structure may reduce the use of unnecessary parts and materials, thereby reducing raw material costs.

[0030] Specifically, all three auxiliary drive sources are either auxiliary motors or hybrid power sources consisting of an engine and an auxiliary motor.

[0031] In practical applications, when all three auxiliary drive sources are auxiliary motors, zero-emission operation can be achieved in scenarios with strict emission requirements (such as urban operations and indoor environments), reducing environmental pollution. A hybrid power source combining an engine and auxiliary motors can flexibly switch power modes under different operating conditions. For example, the engine provides continuous and stable power during long-distance travel or when higher power output is required; the auxiliary motor drives the equipment for short distances, low loads, or when quiet operation is needed, improving the equipment's adaptability to different working environments and task requirements. The combination of hybrid power sources leverages the advantages of both engines and auxiliary motors. Engines typically have high power and torque output, meeting the power demands of equipment under heavy loads or high-speed travel; auxiliary motors, on the other hand, feature fast response and stable torque output, performing excellently during startup, acceleration, and operations requiring precise control. The combination of both enhances the overall power performance of the equipment, making its operation more efficient.

[0032] Auxiliary motors can typically be easily integrated with electronic control systems to achieve automated control. Through sensors and controllers, the operating status of the auxiliary motor can be monitored and adjusted in real time, automatically adjusting power output based on system operation. This helps improve the intelligence of the equipment, reduces manual intervention, lowers the labor intensity of operators, and also improves the reliability and stability of the system. Some modern auxiliary motors have energy recovery capabilities; under certain operating conditions (such as when the workload of the machine is reduced or decelerated), the motor can operate as a generator, converting mechanical energy into electrical energy and storing it, thus achieving energy recovery and utilization. This not only improves energy utilization and reduces equipment operating costs but also helps reduce environmental impact, aligning with the trend of energy conservation and environmental protection.

[0033] Specifically, the first auxiliary drive source is a hybrid power source consisting of an engine and an auxiliary motor, while the second and third auxiliary drive sources are both auxiliary motors.

[0034] In practical use, the hybrid powertrain combines the advantages of a powerful engine and a responsive auxiliary motor. When high power output is required, such as during heavy-load vehicle starts or high-intensity work on the platform, the engine provides the primary power, ensuring sufficient torque and power for the device. The auxiliary motor can quickly intervene when the engine is inefficient or when additional power is needed momentarily (such as during acceleration or rapid restart after a sudden stop), supplementing power and making the power output smoother and stronger. The other two auxiliary motors can also work collaboratively as needed to further enhance overall power and meet the power requirements under complex operating conditions. The hybrid powertrain can flexibly switch power modes according to different operating conditions. In low-speed, light-load scenarios or when precise control of power output is required, the auxiliary motor can be used primarily for drive, reducing engine running time, thereby reducing fuel consumption and improving energy efficiency. In high-speed, heavy-load scenarios, where the engine is suitable for efficient engine operation, the engine serves as the primary power source, while the auxiliary motor assists and optimizes power output, further improving energy utilization and reducing operating costs.

[0035] The presence of multiple power sources increases the system's reliability and redundancy. When one power source (such as an engine or an auxiliary motor) fails, other power sources can continue to operate, ensuring the platform or vehicle maintains a certain operating state and preventing the entire system from paralyzing due to a single power source failure. For example, when the engine fails, the auxiliary motor can serve as a temporary power source, allowing the vehicle to slowly travel to a safe location for repairs; or when one auxiliary motor fails, other power sources can still meet some of the operational needs. The combination of a hybrid power source and an auxiliary motor allows the device to better adapt to different working environments and tasks. In urban or indoor environments with high emission requirements, auxiliary motors can be used more extensively to reduce exhaust emissions; while in outdoor environments with high power requirements and relatively convenient energy replenishment, the engine can fully utilize its advantages. In addition, the rapid response characteristics of the auxiliary motor are also suitable for tasks requiring frequent start-stop and power output adjustments, improving the device's versatility and adaptability.

[0036] Precise control of the hybrid power source and multiple auxiliary motors enables more accurate power distribution and coordinated operation. The output power of each power source is rationally allocated according to the load requirements of different shaft systems, making the entire transmission system operate more efficiently. For example, during different operations on the platform, the output of the hybrid power source and auxiliary motors is precisely adjusted according to the actual needs of the plunger pump, ensuring that power meets work requirements without being wasted.

[0037] Specifically, the four shaft groups 4 and the transmission assembly 2 form a T-shaped array structure, and the shaft group 4 of the first transmission shaft system 1 and the shaft groups 4 of any two remaining transmission shaft systems 1 are arranged into a triangular prism structure.

[0038] In practical applications, the combination of the T-shaped array structure and the triangular prism structure allows for the rational arrangement of each shaft group 4 and transmission component 2 within a limited space. This layout makes full use of space, avoids interference between the shaft group 4 and the transmission component 2, and makes the device more compact. Especially for equipment with high space requirements (such as special vehicles and small work platforms), the overall volume can be reduced without sacrificing performance, improving the space utilization rate of the equipment. The triangular prism structure has good mechanical properties and can withstand large external forces and torques. The shaft group 4 of the first transmission shaft system 1, together with the shaft groups 4 of any two remaining transmission shaft systems 1, is arranged in a triangular prism structure, making the force distribution more uniform when transmitting power, enhancing the strength and stability of the structure. When facing complex working conditions and large loads, this structure can effectively reduce shaft deformation and vibration, ensure the accuracy and reliability of transmission, and extend the service life of the device.

[0039] The T-shaped array structure provides a more rational path for power transmission. The connection and power transmission between each shaft group 4 are more direct and smoother, reducing power loss during transmission. Simultaneously, this structure facilitates adjustments to power distribution and flow according to different operational needs. For example, it allows for easier power transmission from the chassis engine or auxiliary drive source to components such as wheel assemblies or the platform's plunger pump, improving power transmission efficiency and flexibility. The layout of this structure is relatively regular, with clearly defined positions for each shaft group 4 and transmission assembly 2, facilitating installation and debugging. During maintenance and repair, it also makes it easier to access each component, facilitating the inspection and replacement of damaged parts. For example, the shaft groups 4 and transmission assembly 2 in the triangular prism structure section can be inspected and maintained more intuitively, reducing maintenance difficulty and cost, and improving equipment maintainability.

[0040] The combination of the T-shaped array structure and the triangular prism structure facilitates modular design. Different functional shaft groups 4 and transmission components 2 can be designed as independent modules, simplifying production, assembly, and replacement. In practical applications, these modules can be flexibly selected and combined according to different needs and working scenarios to quickly construct transmission devices that meet specific requirements, improving product versatility and adaptability while reducing R&D and production costs. Through a reasonable structural layout and optimized power transmission path, this four-axis transmission device can better coordinate the relationship between various power sources and working parts, making the equipment more stable and efficient during operation. Both the vehicle's driving performance and the platform's operational performance are effectively improved, thereby enhancing the overall competitiveness and value of the equipment.

[0041] Specifically, the shaft assembly 4 includes a rotating shaft 41 and a first gear disk 42, the first gear disk 42 being coaxially fixed on the rotating shaft 41; the transmission assembly 2 has a second gear disk 21, which meshes with the first gear disk 42 of two adjacent shaft assemblies 4 to transmit power.

[0042] In actual use, the first gear disk 42 is coaxially fixed on the rotating shaft 41, and the second gear disk 21 of the transmission assembly 2 meshes with the first gear disk 42 of the two adjacent shaft groups 4. This gear transmission method can ensure the accuracy of power transmission. The meshing relationship between the gears is stable, and the transmission ratio is accurate, which can ensure that the load components obtain stable speed and torque output, meeting the requirements of some working scenarios with high power transmission accuracy, such as precision machining equipment and instruments. Gear transmission is a highly efficient transmission method. During meshing, the friction loss between gears is relatively small. The meshing transmission of the first gear disk 42 and the second gear disk 21 can effectively transmit the power on the rotating shaft 41 to the adjacent shaft group 4, reducing energy loss during transmission, improving the transmission efficiency of the entire transmission device, thereby reducing energy consumption and improving energy utilization efficiency.

[0043] Due to the structural characteristics of gear transmissions, adjusting the transmission ratio or performing maintenance is relatively convenient. The transmission ratio can be changed by replacing the first gear disc 42 or the second gear disc 21 with different numbers of teeth to adapt to different working requirements. In terms of maintenance, gear inspection and replacement are relatively easy; maintenance personnel can visually observe gear wear and replace or repair them promptly to ensure the normal operation of the equipment. Gear transmissions can withstand large loads, and the meshing structure of the first gear disc 42 and the second gear disc 21 can effectively transmit power to adjacent shaft groups 4, maintaining stable transmission performance even under heavy load conditions. This allows the transmission device to adapt to various load conditions, meeting the high-load transmission needs of industrial production, heavy machinery, and other fields.

[0044] Specifically, both the first gear disk 42 and the second gear disk 21 are provided with gear teeth 5 and a center hole 6. The first gear disk 42 and the second gear disk 21 are driven by meshing through the gear teeth 5. The first gear disk 42 is coaxially mounted on the rotating shaft 41 through the center hole 6.

[0045] In actual use, the first gear disc 42 is coaxially mounted on the rotating shaft 41 through the center hole 6. This assembly method simplifies the installation and removal of the gear disc. During equipment maintenance, repair, or when the gear disc needs to be replaced to adjust the transmission ratio, maintenance personnel can easily remove or install the first gear disc 42 from the rotating shaft 41 without complicated tools or procedures, thus reducing equipment downtime and improving maintenance efficiency. The center hole 6 ensures that the first gear disc 42 can be accurately coaxially mounted on the rotating shaft 41, guaranteeing the coaxiality of the gear disc during rotation. Precise coaxiality is crucial for the smoothness and accuracy of gear transmission; it reduces radial runout and axial movement during gear meshing, lowers vibration and noise, and improves transmission precision and reliability.

[0046] The first gear disc 42 and the second gear disc 21 are driven by meshing gear teeth 5. This design results in a relatively large contact area between the gears, enabling better power transmission. Simultaneously, the optimized design of the gear teeth 5 improves gear meshing parameters such as tooth profile and module, further enhancing the gear's load-bearing capacity and transmission efficiency. Furthermore, good meshing performance reduces gear wear, extends gear life, and lowers equipment operating costs. Both the first gear disc 42 and the second gear disc 21 are equipped with gear teeth 5 and a center hole 6. This standardized structural design provides a degree of versatility and interchangeability for gear discs of different specifications and parameters. In practical applications, if it is necessary to replace the gear disc to adapt to different working conditions or meet new performance requirements, a suitable gear disc can be easily selected for replacement without requiring large-scale modifications to the entire transmission device, thus improving the equipment's flexibility and scalability.

[0047] Specifically, the end of the shaft assembly 4 is fixed with a flange 7. The flange 7 includes a toothed portion 72 on the inner ring and a plurality of mounting holes 71 arranged in a ring array on the outer ring. The toothed portion 72 and the corresponding toothed portion at the end of the rotating shaft 41 are engaged by spline meshing or involute tooth profile to transmit torque. The plurality of mounting holes 71 are detachably connected to the drive source or load component by bolt fastening.

[0048] In practical use, the toothed portion 72 of the inner ring of the flange 7 and the corresponding toothed portion of the end of the rotating shaft 41 are engaged by spline meshing or involute tooth profile. Both of these meshing methods provide a large contact area, thereby achieving efficient torque transmission. During the transmission of power from the drive source to the shaft assembly 4, or from the shaft assembly 4 to the load component, power loss is minimized, improving the overall efficiency of the transmission device. Spline meshing and involute tooth profile meshing have excellent centering properties, ensuring precise coaxiality between the shaft assembly 4 and the drive source or load component. This helps reduce vibration and noise caused by eccentricity, ensures the stability of torque transmission, and extends the service life of the transmission device.

[0049] The flange 7 has multiple mounting holes 71 arranged in a ring array on its outer ring, forming a detachable connection with the drive source or load component via bolt fastening. This connection method makes the installation and removal of the shaft assembly 4 from the drive source or load component very convenient. During equipment assembly, maintenance, repair, or upgrades, the shaft assembly 4 can be quickly replaced or adjusted, reducing downtime and improving production efficiency. The structural design of the flange 7 allows the shaft assembly 4 to adapt to different types and specifications of drive sources and load components. By replacing flanges 7 of different sizes or models, the shaft assembly 4 can be connected to various drive sources (such as motors, engines, etc.) and load components (such as reducers, driven machines, etc.), expanding the application range of the transmission device. In actual installation, it is difficult to ensure that the installation positions of the drive source, load component, and shaft assembly 4 are completely precise. The bolt connection method of the flange 7 has a certain degree of flexibility, which can compensate for installation errors to a certain extent and ensure a reliable connection between the shaft assembly 4 and the drive source or load component.

[0050] Specifically, the clutch assembly 3 includes a plurality of clutch components 31 disposed on the shaft assembly 4. The clutch components 31 are one or a combination of two of the following: a manual clutch or an automatic clutch. The manual clutch is a dry single-plate clutch or a dry multi-plate clutch. The automatic clutch is one of the following: an electromagnetic clutch, a hydraulic clutch, a double-plate reinforced clutch or a push-plate clutch.

[0051] In practical use, clutch assembly 3 includes both manual and automatic clutches. The manual clutches include dry single-plate clutches and dry multi-plate clutches, while the automatic clutches encompass various types such as electromagnetic clutches and hydraulic clutches. This diverse combination provides users with a wide range of control options. For scenarios requiring precise manual control, such as equipment debugging and special process operations, the manual clutch allows operators to flexibly control power transmission according to the actual situation. On highly automated production lines, the automatic clutch enables rapid and accurate power on / off control, improving production efficiency. Different types of clutches are suitable for different operating conditions. For example, electromagnetic clutches have a fast response speed and are suitable for frequent starts and stops and rapid power transmission switching; hydraulic clutches have good buffering and overload protection performance, effectively protecting the transmission device and equipment under conditions of large load changes or impact loads; dry single-plate or multi-plate clutches perform well in situations requiring large torque and compact space. By rationally selecting and combining different types of clutches, this transmission device can better adapt to various complex working environments and operating conditions.

[0052] Combinations of various clutch types can provide redundancy and backup capabilities. When one clutch fails, another type can continue operating, ensuring basic system operation. For example, in the event of an electrical fault in the automatic clutch, the manual clutch can serve as a backup, allowing the operator to maintain control of power transmission, preventing equipment downtime, and improving system reliability and stability. Appropriate clutch types and combinations can optimize the performance and efficiency of the transmission system. For instance, the rapid response of an automatic clutch reduces power transmission time delays and improves equipment efficiency; the precise control of a manual clutch avoids unnecessary power loss and improves energy utilization efficiency. By rationally configuring the clutch assembly 3, the entire four-shaft transmission system can achieve optimal performance under various operating conditions.

[0053] Specifically, the drive source is an engine or an electric motor. When multiple drive sources work together, the system is equipped with an energy management module, which is electrically connected to the clutch assembly 3, the chassis engine and the auxiliary drive source. It can dynamically adjust the working mode of each drive source according to the working requirements of the load and the battery power status, control some drive sources to drive the load to run, and control other drive sources to generate electricity and charge.

[0054] In actual use, the energy management module dynamically adjusts the drive source's operating mode based on the load's operational needs and the battery's charge level. When the load demand is low, some drive sources power the load while the rest generate electricity to charge the battery, avoiding energy waste. For example, under light load conditions, the motor can drive the load while the engine generates electricity, storing excess energy in the battery, improving overall energy utilization and reducing operating costs. By controlling the drive source's power generation and charging, the system's required power can be replenished promptly, especially when no external power source is available, effectively extending the equipment's continuous operating time. For example, field equipment can rely on the drive source's power generation to maintain long-term operation without an external power source, reducing downtime due to insufficient power.

[0055] Faced with different load conditions, the energy management module can quickly adjust the operating modes of each drive source. Under heavy load, multiple drive sources can simultaneously output power to drive the load; when the load decreases, some drive sources are switched to generate electricity, achieving flexible allocation of power and electrical energy supply and ensuring that the transmission device is always in a high-efficiency operating state. Reasonable allocation of drive source operating modes allows each drive source to operate within its efficient operating range. For example, an engine generates electricity more efficiently at a specific speed, and a motor has optimal driving performance within a certain load range. The energy management module's regulation can optimize the overall performance of the equipment, reduce drive source wear, and extend the equipment's service life.

[0056] Multiple drive sources work collaboratively and possess power generation and charging capabilities, providing redundancy for the system. When one drive source fails, the others can adjust their operating modes to continue meeting load demands or maintaining system power supply, enhancing the system's ability to cope with faults and improving overall reliability. Through energy conversion and management among the drive sources, the equipment's dependence on external power sources or fuel replenishment is reduced. In some special scenarios, such as remote areas and emergency rescue, the device can operate independently using its own energy management system, enhancing the equipment's environmental adaptability and application flexibility.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A four-shaft transmission, characterized by: It includes a transmission assembly (2), a clutch assembly (3), and four parallel transmission shafts (1); each transmission shaft (1) has a shaft group (4), and the four transmission shafts (1) are connected to each other through the transmission assembly (2); one end of the shaft group (4) of the first transmission shaft (1) is connected to the chassis engine of the external vehicle, and the other end of the shaft group (4) of the first transmission shaft (1) is connected to the wheel assembly of the external vehicle or the plunger pump of the external vehicle platform; one end of the shaft group (4) of the second transmission shaft (1), the third One end of the shaft group (4) of the first transmission shaft system (1) and one end of the shaft group (4) of the fourth transmission shaft system (1) are used to connect to the three auxiliary drive sources of the external platform respectively. The other ends of the shaft group (4) of the second transmission shaft system (1), the other ends of the shaft group (4) of the third transmission shaft system (1), and the other ends of the shaft group (4) of the fourth transmission shaft system (1) are all connected to the plunger pump of the external platform. The clutch assembly (3) is used to control the power transmission between each shaft group (4) and the transmission assembly (2).

2. A four-shaft transmission according to claim 1, characterized in that: The shaft group (4) of the second transmission shaft system (1), the shaft group (4) of the third transmission shaft system (1), and the shaft group (4) of the fourth transmission shaft system (1) are arranged in the same plane.

3. A four-shaft transmission according to claim 1, characterized in that: All three auxiliary drive sources are either auxiliary motors or hybrid power sources consisting of an engine and an auxiliary motor.

4. A four-shaft transmission according to claim 1, characterized in that: The first auxiliary drive source is a hybrid power source consisting of an engine and an auxiliary motor, while the second and third auxiliary drive sources are both auxiliary motors.

5. A four-shaft transmission according to claim 1, characterized in that: The four shaft groups (4) and the transmission assembly (2) form a T-shaped array structure. The shaft group (4) of the first transmission shaft system (1) and the shaft groups (4) of any two remaining transmission shaft systems (1) are arranged into a triangular prism structure.

6. A four-shaft transmission according to claim 1, characterized in that: The shaft assembly (4) includes a rotating shaft (41) and a first gear disk (42), the first gear disk (42) being coaxially fixed on the rotating shaft (41); the transmission assembly (2) has a second gear disk (21), which meshes with the first gear disk (42) of the two adjacent shaft assemblies (4) to achieve power transmission.

7. A four-shaft transmission according to claim 6, characterized in that: The first gear disk (42) and the second gear disk (21) are both provided with gear teeth (5) and a center hole (6). The first gear disk (42) and the second gear disk (21) are driven by meshing through the gear teeth (5). The first gear disk (42) is coaxially mounted on the rotating shaft (41) through the center hole (6).

8. A four-shaft transmission according to claim 1, characterized in that: The end of the shaft assembly (4) is fixed with a flange (7). The flange (7) includes a toothed portion (72) on the inner ring and a plurality of mounting holes (71) arranged in a ring array on the outer ring. The toothed portion (72) and the corresponding toothed portion at the end of the rotating shaft (41) are engaged by spline meshing or involute tooth profile to transmit torque. The plurality of mounting holes (71) are detachably connected to the auxiliary drive source or the external wheel assembly or the plunger pump of the external platform by bolt fastening.

9. A four-shaft transmission according to claim 1, characterized in that: The clutch assembly (3) includes a plurality of clutch components (31) disposed on the shaft assembly (4). The clutch components (31) are one or a combination of two of the following: a manual clutch or an automatic clutch. The manual clutch is a dry single-plate clutch or a dry multi-plate clutch. The automatic clutch is one of the following: an electromagnetic clutch, a hydraulic clutch, a double-plate reinforced clutch or a push-plate clutch.

10. A four-shaft transmission according to claim 1, characterized in that: The four-axis transmission device is equipped with an energy management module, which is electrically connected to the clutch assembly (3), chassis engine and auxiliary drive source. It can dynamically adjust the working mode of chassis engine and three auxiliary drive sources according to the working requirements of external wheel assembly or external vehicle platform plunger pump and battery power status. It controls some auxiliary drive sources to drive external wheel assembly or external vehicle platform plunger pump to run, and at the same time controls other auxiliary drive sources to generate electricity and charge.

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