A coaxial multi-drive closed-loop circulation power generation all-in-one machine

Abstract

The application discloses a coaxial multi-drive closed-loop circulation power generation integrated machine, and belongs to the technical field of power equipment. The machine is provided with an integrated common main shaft, the main shaft is assembled with multiple groups of main shaft supporting components, and the supporting form can be selected from a magnetic suspension bearing or a conventional mechanical bearing. Multiple groups of large-torque motors and multiple groups of generators are integrated in the machine body, multiple groups of transformers, energy storage batteries and electrical junction boxes are matched, and a coaxial closed-loop operation system is formed. The equipment completes initial starting by relying on the energy storage battery, coaxial linkage is used to make each unit synchronously operate, one group of electric energy is supplied to the driving motor after being transformed, and long-acting closed-loop self-circulation of the whole machine is realized. The integrated machine has dual functions of power output and power generation, and the redundant electric energy can be used to drive a car or a ship to run, and the power supply of the vehicle-mounted or ship-mounted equipment and the power supplement of the energy storage battery are considered. The application solves the problems of insufficient traditional power endurance, dependence on external power supplement, fuel pollution, large shaft loss, poor stability in bumping working conditions and the like, has high integration degree and excellent safety redundancy, and is suitable for a wide range of application scenarios.

Description

Technical Field

[0001] This invention belongs to the technical field of power equipment and new energy transportation equipment, specifically an integrated coaxial closed-loop power generator. This device can be used as the main drive power unit in passenger cars, freight vehicles, inland waterway and ocean-going vessels, and can also be used in engineering machinery, stationary backup power supplies, and special equipment generator sets. Background Technology

[0002] Currently, there are many shortcomings in vehicle-mounted and marine power equipment. Pure electric ships rely on external energy storage batteries for power, which limits their range and requires frequent refueling for long-distance and ocean-going operations; fuel-powered vehicles and ships continuously consume fossil fuels, and the supporting storage and transportation facilities occupy space, generate pollutants during operation, have high maintenance and material costs, and the fuel system poses fire safety hazards.

[0003] Conventional coaxial power units are mostly single-drive structures, unable to achieve closed-loop internal power operation, requiring continuous external power supply during operation. The main shaft bearings suffer from high long-term frictional wear, are prone to overheating and aging under bumpy conditions, and require frequent maintenance. Furthermore, traditional units have limited capacity for expansion and load driving; a single component failure can easily cause the entire unit to shut down, resulting in insufficient operational stability. This invention aims to address the shortcomings of the existing technology. Summary of the Invention

[0004] 1. Purpose of the invention This invention provides a coaxial multi-drive closed-loop circulating power generator. It employs a shared main shaft and coaxial linkage structure to achieve closed-loop operation of the unit's internal electrical energy. The main shaft can be equipped with magnetic levitation bearings or conventional mechanical bearings to adapt to different operating conditions. Large-scale units utilize the lever arm effect to amplify the main shaft torque and improve load-bearing capacity. The equipment can independently supply power to external systems while simultaneously replenishing energy from storage batteries, reducing dependence on external energy sources and improving equipment operational stability and service life. Technical solution

[0005] Based on the reference numerals in the accompanying drawings, the structure of this invention is as follows: The machine includes a common mounting base 16, a common spindle, a spindle support assembly, a left-side functional unit 2, a right-side generator 6, a third DC drive motor 3, a fourth AC motor 4, multiple electrical junction boxes, a left-side power voltage stabilizer transformer 12, a right-side power voltage stabilizer transformer 15, a starting energy storage battery 13, and a redundant energy storage battery 14.

[0006] The symbols in the attached image have corresponding explanations. 1, 7: Support assembly positions at both ends of the spindle; 2: Left-side functional units; 3: No. 3 DC drive motor; 4: No. 4 AC motor; 5: Spindle center support mounting base; 6: Generator on the right; 8: Electrical junction box on the right side of the generator body; 9: Lower electrical junction box of AC motor No. 4; 10: Lower electrical junction box of DC drive motor No. 3; 11: Electrical junction box of the left-side functional unit body; 12: Left-side power voltage stabilizer transformer; 13: Start-up energy storage battery; 14: Redundant energy storage batteries for the entire unit; 15: Right-side power voltage stabilizing transformer; 16: Integrated common mounting base for the whole machine.

[0007] Assembly structure relationship The common spindle runs horizontally through the entire machine, and is connected in series with the left-side functional unit 2, the third DC drive motor 3, the fourth AC motor 4, and the right-side generator 6; all units are fixedly installed on the common mounting base 16. The spindle support components are installed at the two end assembly positions 1 and 7 and the middle base 5. The support components can be magnetic levitation bearings or conventional mechanical bearings to achieve spindle rotation support and positioning.

[0008] The left functional unit is equipped with an electrical junction box 11, and the right generator is equipped with an electrical junction box 8; junction boxes 10 and 9 are respectively installed at the bottom of the No. 3 DC drive motor and the No. 4 AC motor; each junction box completes the unit circuit integration and is electrically connected to the left transformer 12 and the right transformer 15 respectively. The transformers are connected to the starting energy storage battery 13 and the redundant energy storage battery 14 respectively.

[0009] The No. 3 DC drive motor 3 and the No. 4 AC motor 4 are larger in size than the other units. When working, they use the lever arm principle to amplify the output torque of the main shaft and improve the load driving capability of the whole machine.

[0010] Overall Machine Workflow 1. In the standby state of the equipment, the starting energy storage battery 13 maintains the rated working power; when the equipment is started, the starting energy storage battery 13 supplies DC power to the No. 3 DC drive motor 3 through the junction box 10, and the No. 3 DC drive motor 3 runs, driving the common spindle to obtain the initial speed.

[0011] 2. The common spindle rotates smoothly under the support of support points 1, 5, and 7. Relying on coaxial rigid linkage, it synchronously drives the left functional unit 2, the No. 4 AC motor 4, and the right generator 6 to operate together.

[0012] 3. The generator 6 on the right side generates AC power. After the AC power is regulated and stabilized by the power voltage regulator transformer 15 on the right side, it is sent to power the No. 4 AC motor 4 for operation. The No. 3 DC drive motor 3 and the No. 4 AC motor 4 leverage their structural dimensions to create a lever-like torque-increasing effect. After the main shaft torque is increased, it can continuously and stably drive the left-side functional unit 2 and the right-side generator 6 to operate the entire machine, forming an internal closed-loop power cycle. Once the closed-loop operation is stable, the entire machine no longer relies on the starting energy storage battery 13 for power, achieving continuous autonomous operation.

[0013] 4. Functional unit 2 on the left side synchronously generates electrical energy, which is output in two ways: The first route outputs electrical energy to supply the onboard electrical equipment of vehicles and ships. The second route sends power back to the redundant energy storage battery 14 to replenish the energy storage battery, serving as an emergency backup energy source for equipment failure. Beneficial effects

[0014] 1. The operation mode realizes the internal power closed loop. After the equipment is running stably, there is no need for continuous external power supply, no need to consume fossil energy, no pollutant emissions, and reduced long-term operation and maintenance costs.

[0015] 2. The spindle can be adapted to both magnetic levitation bearings and conventional mechanical bearings, allowing for flexible selection based on the operating environment and project cost. This reduces frictional loss, extends the service life of the spindle and the entire machine, and enhances stability during bumpy operation.

[0016] 3. The motor selection matches the power attributes, resulting in higher operating efficiency. The No. 3 DC drive motor is compatible with the DC direct start of the energy storage battery, offering high starting torque and easy control; the No. 4 AC motor is matched with the AC output of the right-side generator, eliminating the need for AC-DC conversion components, resulting in low power loss and stable continuous operation. Combined with the lever torque-enhancing effect of the large-size structure, the whole machine has strong load-bearing capacity and can smoothly drive the entire unit for long-term operation, with a wider range of load adaptability.

[0017] 4. It is equipped with a dual energy storage structure of starting energy storage battery and redundant energy storage battery, which has emergency power supply capability. A single branch line failure will not cause the whole machine to stop suddenly, and the operation safety redundancy is higher.

[0018] 5. All units are integrated and installed on a single common base, making assembly, hoisting, and on-site layout convenient and adaptable to the narrow installation space of automobile chassis and ship engine rooms.

[0019] 6. The unit can be equipped with power and generator modules of the same specifications at the extension end of the main shaft, so as to realize flexible expansion of installed capacity and applicable scenarios. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure assembly of a coaxial multi-drive closed-loop cycle power generator integrated machine according to the present invention; 1, 7: Support assembly positions at both ends of the spindle; 2: Left-side functional units; 3: No. 3 DC drive motor; 4: No. 4 AC motor; 5: Spindle center support mounting base; 6: Generator on the right; 8: Electrical junction box on the right side of the generator body; 9: Lower electrical junction box of AC motor No. 4; 10: Lower electrical junction box of DC drive motor No. 3; 11: Electrical junction box of the left-side functional unit body; 12: Left-side power voltage stabilizing transformer; 13: Start the energy storage battery; 14: Redundant energy storage batteries; 15: Right-side power voltage stabilizer transformer; 16: Integrated common mounting base for the whole machine. Detailed Implementation

[0021] The common mounting base 16 is fixedly installed on the reserved mounting position of the automobile chassis or the mounting platform of the ship's engine room; the left functional unit 2, the third DC drive motor 3, the fourth AC motor 4, and the right generator 6 are fixedly assembled on the common mounting base 16.

[0022] The internal wiring of the unit is completed through junction boxes 11, 8, 9, and 10. The left-side power voltage stabilizer transformer 12 and the right-side power voltage stabilizer transformer 15 are electrically connected to the starting energy storage battery 13 and the redundant energy storage battery 14, respectively.

[0023] During equipment standby, the starting energy storage battery 13 is kept fully charged. During startup, the starting energy storage battery 13 supplies DC power to the No. 3 DC drive motor 3 via the junction box 10. The No. 3 DC drive motor 3 drives the common main shaft to rotate, and all other units operate synchronously in a coaxial linkage.

[0024] The generator 6 on the right generates AC power, which is then regulated by the transformer 15 on the right and supplied to the No. 4 AC motor 4. Relying on the lever torque-increasing effect of the No. 3 and No. 4 generators, the main shaft torque meets the continuous operation requirements of the whole machine, and the equipment enters a self-sustaining closed-loop operation state without a starting battery.

[0025] The left-side functional unit 2 continuously outputs electrical energy, one of which powers the vehicle and ship equipment, and the other of which replenishes the power of the redundant energy storage battery 14. If it is necessary to increase the installed power, a unit of the same specification can be added to the extension end of the common spindle. The spindle can be assembled with magnetic levitation bearings or conventional mechanical bearings according to the usage requirements.

Claims

1. A coaxial multi-drive closed-loop cycle power generator, characterized in that: Includes a common mounting base (16), a common spindle, a spindle support assembly, several left-side functional units (2), at least one No. 3 DC drive motor (3), at least one No. 4 AC motor (4), several right-side generators (6), a starting energy storage battery (13), a redundant energy storage battery (14), a left-side power voltage regulator transformer (12), a right-side power voltage regulator transformer (15), and multiple electrical junction boxes; The common main shaft is arranged horizontally, and multiple functional units, DC drive motors, AC motors and generator sets are installed in series on the same axis. All units are fixedly installed on the common mounting base (16). The two ends of the common main shaft are provided with main shaft end support mounting positions (1, 7), and the middle of the main shaft is provided with a main shaft middle support mounting base (5). The main shaft support assembly is installed at the above mounting positions and base. The main shaft support assembly uses magnetic levitation bearings or conventional mechanical bearings. Each No. 3 DC drive motor (3) has a dedicated lower electrical junction box (10) at the bottom. The No. 3 DC drive motor (3) is electrically connected to the starting energy storage battery (13) through the junction box (10). Each No. 4 AC motor (4) has a dedicated lower electrical junction box (9) at the bottom. Each right generator (6) is equipped with a body electrical junction box (8). The right generator (6) is electrically connected to the matching No. 4 AC motor (4) through the right power voltage stabilizer transformer (15, corresponding junction box 9). Each left functional unit (2) is equipped with a body electrical junction box. (11) The left functional unit (2) is electrically connected to the external power load and redundant energy storage battery (14) via the left power voltage regulator transformer (12); the third DC drive motor (3) and the fourth AC motor (4) are larger in size than the left functional unit (2) and the right generator (6), and the output torque of the common spindle is amplified by lever arm; the common spindle has an axial extension installation position reserved, which can add multiple DC drive motors, AC motors, generators and functional units to realize multi-drive layout and multi-unit redundant configuration; when the equipment starts, the starting energy storage battery (13) provides DC power to the third DC drive motor (3), drives the common spindle to rotate, and all series units are coaxially linked to operate synchronously; the right generator (6) outputs AC power to the corresponding fourth AC motor (4), superimposed with the lever torque amplification effect, forming a closed-loop operation of the internal power of the whole machine. After the equipment is stable, it can be disconnected from the starting energy storage battery to continue self-sustaining operation; the left functional unit (2) transmits power to the outside and at the same time recharges the redundant energy storage battery (14).

2. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: The third DC drive motor (3) is used for the initial start-up drive of the whole machine. It is compatible with the DC output of the energy storage battery and can be directly connected to the power supply without the need for an inverter. Multiple DC drive motors can be configured in parallel to improve the starting power and starting redundancy.

3. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: The fourth AC motor (4) is matched with the right generator (6) AC output, eliminating the need for AC-DC conversion devices and realizing direct power supply; multiple AC motors work synchronously and coaxially, superimposing torque to improve the overall load capacity and operation redundancy.

4. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: The spindle support assembly can be selected from two options: a magnetic levitation bearing to reduce spindle friction loss, or a conventional mechanical bearing to control equipment manufacturing costs; multiple support bases provide multi-point support for the spindle, further enhancing structural stability.

5. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: The system is equipped with a dual energy storage structure consisting of a starting energy storage battery (13) and a redundant energy storage battery (14). The redundant energy storage battery (14) is fed back by the functional unit (2) on the left side, serving as an emergency backup energy source for equipment failure. Multiple energy storage battery groups can be added to achieve multiple redundancies in power supply.

6. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: The common spindle has reserved expansion assembly stations at both ends and in the middle section, which can be used to add multiple drive motors, AC motors and generator modules of the same specifications as needed, so as to realize flexible expansion of installed power and parallel redundant operation of multiple units.

7. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: All units are integrated and fixed on an integrated common mounting base (16), and are assembled in a modular manner to adapt to the installation and layout of vehicle chassis and ship engine rooms in narrow spaces; the modular group layout of multiple units means that the failure of a single group will not affect the operation of the whole machine foundation.

8. The coaxial multi-drive closed-loop cycle power generator according to claim 1, characterized in that: Each unit's electrical wiring is centrally and independently routed through a dedicated bottom junction box, resulting in high wiring integration. This facilitates group management and individual maintenance, and achieves multiple redundancies in the circuit loops.

9. The arrangement of the units is not limited to the order described in the text. Adjusting the arrangement order on the common axis will still fall within the scope of this protection.

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