High-integration integral speed regulator based on planetary gear structure

Abstract

The utility model relates to the technical field of diesel engine speed regulators, and discloses a high-integration integral speed regulator based on a planetary gear structure, which comprises a generator, a driving motor, a differential planetary gearbox and a speed regulation controller, the generator is connected with the driving motor and the speed regulation controller, an output shaft of the driving motor is connected with the differential planetary gearbox, and the differential planetary gearbox is connected with the speed regulation controller. The speed regulation controller is connected with the driving motor, the differential planetary gearbox is connected with an output shaft, and the output shaft is connected with a crankshaft or a camshaft of an external engine. In conclusion, the planetary gear system is adopted as a transmission mechanism, the transmission ratio is increased, the output torque is enhanced, the control capacity is optimized, efficient and stable adjustment of the rotating speed of the engine is achieved through accurate feedback control, the structure is simple, energy consumption is low, reliability is high, and the requirement of a high-power diesel engine for high-torque speed adjustment can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine governors, in particular to a highly integrated integral governor based on a planetary gear structure. Background Technique

[0002] A governor is a rotational speed control mechanism of a diesel engine. The function of the governor is that when the rotational speed of the diesel engine decreases, the output shaft of the governor moves in the direction of increasing fuel, that is, increasing the fuel supply of the fuel injection pump; when the rotational speed increases, the output shaft of the governor moves in the direction of reducing fuel, that is, reducing the fuel supply of the fuel injection pump, so that the fuel supply of the fuel injection pump is always adapted to the external load, thereby ensuring the stable operation of the diesel engine.

[0003] The existing electro-hydraulic governor has a complex structure, requires a high oil pressure to work, is difficult to be applied to high-power diesel engines, and has problems of large energy consumption and low efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is the problems of complex structure, large energy consumption and low efficiency of the existing governor.

[0005] To solve the above technical problems, the technical solution of the utility model is to provide a highly integrated integral governor based on a planetary gear structure, including a generator, a driving motor, a differential planetary gearbox and a speed control controller. The generator is connected to the driving motor and the speed control controller. The output shaft of the driving motor is connected to the differential planetary gearbox. The speed control controller is connected to the driving motor. An output shaft is connected to the differential planetary gearbox, and the output shaft is connected to an external engine crankshaft or camshaft.

[0006] Optionally, an output position monitoring component is connected to the speed control controller, and the output position monitoring component is connected to an external vehicle throttle.

[0007] Optionally, the driving motor is a brushless DC torque motor, and a rectification and voltage stabilization device is provided between it and the generator.

[0008] Optionally, a differential planetary gear is provided in the differential planetary gearbox. The differential planetary gear includes an internal gear ring, a sun gear and a planetary gear. A gearbox input shaft is connected to the planetary gear, the gearbox input shaft is connected to the output shaft of the driving motor, and the sun gear is connected to the output shaft.

[0009] In summary, the utility model uses a planetary gear system as a transmission mechanism, increases the transmission ratio, enhances the output torque and optimizes the control ability, realizes the efficient and stable regulation of the engine speed through precise feedback control, has a simple structure, low energy consumption and high reliability, and can meet the requirements of high-power diesel engines for high-torque speed regulation. Description of the Drawings

[0010] Figure 1 Schematic diagram of the structural framework of the present utility model;

[0011] Figure 2 Schematic diagram of the differential planetary gear structure of the present utility model;

[0012] In the figure: 1, input shaft of the gearbox; 2, planetary gear; 3, sun gear; 4, internal gear ring; 5, output position monitoring component; 6, output shaft; 7, speed control controller; 8, differential planetary gearbox; 9, drive motor; 10, generator; 11, planet carrier. Specific embodiments

[0013] The following is further detailed description of the present utility model in conjunction with Figure 1-2 to further elaborate on the present utility model.

[0014] The present utility model discloses a highly integrated integral speed governor based on a planetary gear structure. Referring to Figure 1 , it includes a generator 10, a drive motor 9, a differential planetary gearbox 8 and a speed control controller 7. The generator 10 is connected to the drive motor 9 and the speed control controller 7. The output shaft of the drive motor 9 is connected to the differential planetary gearbox 8. The speed control controller 7 is connected to the drive motor 9. An output shaft 6 is connected to the differential planetary gearbox 8, and the output shaft 6 is connected to the crankshaft or camshaft of an external engine.

[0015] In a further embodiment, the drive motor 9 is a brushless DC torque motor, and a rectification and voltage stabilization device is provided between it and the generator 10. An output position monitoring component 5 is connected to the speed control controller 7. The output position monitoring component 5 is connected to the accelerator of an external vehicle, used to monitor the accelerator position and feedback it to the speed control controller 7. Referring to Figure 2 , a differential planetary gear is provided in the differential planetary gearbox 8. The differential planetary gear includes an internal gear ring 4, a sun gear 3 and a planetary gear 2. The planetary gear 2 is connected to an input shaft 1 of the gearbox through a planet carrier 11. The input shaft 1 of the gearbox is connected to the output shaft of the drive motor 9 through gear meshing. The sun gear 3 is connected to the output shaft 6, realizing precise speed regulation of high-power and high-torque diesel engines, and being able to reduce the engine speed and increase the output torque, and then controlling the stability of the engine speed by adjusting the fuel injection volume.

[0016] Specifically, the generator 10 is connected to the engine drive input end, and the output shaft 6 is connected to the engine crankshaft or camshaft. The engine drives the generator 10 to generate alternating current, and the output alternating current is converted into direct current through a rectification and voltage stabilization device for use by the drive motor 9. At the same time, the speed control controller 7 obtains the engine speed signal by measuring the alternating current frequency of the generator 10, and controls the forward and reverse rotation of the drive motor 9 by comparing the difference between the set value and the actual measured value. Meanwhile, it judges the throttle opening to adjust the engine speed. The drive motor 9 and the differential planetary gearbox 8 are feedback-connected through tooth meshing, which can increase the torque and further improve the accuracy of feedback control.

[0017] The utility model integrates the generator 10, the drive motor 9, the planetary gearbox 8 and the speed control controller 7, simplifies the hydraulic mechanical structure, reduces the energy consumption required to establish oil pressure, realizes the transmission of large torque within a compact structure through the efficient meshing of the planetary gear system and the planet carrier, and significantly improves the torque control ability of the governor. It can accurately feedback control to achieve efficient and stable adjustment of the engine speed, and has the advantages of wide application range, high efficiency, stable performance and strong reliability.

[0018] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. High-integration integral speed governor based on planetary gear structure, characterized in that It includes a generator (10), a drive motor (9), a differential planetary gearbox (8) and a speed control controller (7). The generator (10) is connected to the drive motor (9) and the speed control controller (7). The output shaft of the drive motor (9) is connected to the differential planetary gearbox (8). The speed control controller (7) is connected to the drive motor (9). An output shaft (6) is connected to the differential planetary gearbox (8), and the output shaft (6) is connected to an external engine crankshaft or camshaft.

2. The high-integration integral speed governor based on a planetary gear structure according to claim 1, wherein An output position monitoring component (5) is connected to the speed control controller (7), and the output position monitoring component (5) is connected to an external vehicle throttle.

3. The high-integration integrated speed governor based on a planetary gear structure according to claim 1, characterized in that, The drive motor (9) is a brushless DC torque motor, and a rectifying and voltage stabilizing device is provided between it and the generator (10).

4. The high-integration integral speed governor based on the planetary gear structure according to claim 3, characterized in that, Differential planetary gears are provided in the differential planetary gearbox (8). The differential planetary gears include an internal gear ring (4), a sun gear (3) and a planetary gear (2). A gearbox input shaft (1) is connected to the planetary gear (2), the gearbox input shaft (1) is connected to the output shaft of the drive motor (9), and the sun gear (3) is connected to the output shaft (6).

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