Speed regulator assembly for improving operation stability of diesel engine of generator set

Abstract

The utility model relates to the technical field of speed regulators, in particular to a speed regulator assembly for improving operation stability of a diesel engine of a generator set, which comprises a flyweight component, a first shaft, a connecting rod component and a first connecting rod. The flyweight assembly is connected to a cam shaft of a diesel engine, the first shaft is connected to the interior of the speed reducer shell, the first shaft is connected with a speed regulating spring in a sleeving mode, the speed regulating spring is a torsional spring, the connecting rod assembly is rotationally connected to a second shaft arranged on the speed reducer shell, and one end of the connecting rod assembly abuts against the flyweight assembly. A third shaft is connected to the connecting rod assembly, a torsion arm of the speed adjusting spring abuts against the two ends of the third shaft, one end of the first connecting rod is hinged to the toothed bar, and the other end of the first connecting rod is hinged to the other end of the connecting rod assembly. According to the speed regulator assembly capable of improving the operation stability of the diesel engine of the generator set, the sensitivity and the stability of the speed regulator are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of governors, in particular to a governor assembly for improving the operating stability of a diesel engine of a generator set. Background Technique

[0002] When the diesel engine of a generator set is working, the fuel injection pump needs to supply an appropriate amount of fuel to the diesel engine of the generator set according to the actual working conditions to ensure the normal operation and power generation of the diesel engine of the generator set and the normal use of the electrical appliance. During the working process, the governor should adjust the fuel quantity at any time according to the changes in the speed and load of the diesel engine of the generator set to meet the needs of the transient working conditions of the diesel engine of the generator set and make the diesel engine of the generator operate stably.

[0003] The Chinese utility model patent with the publication number CN217107230U discloses a governor block for improving the operating stability of an engine. The governor spring in this governor is a cylindrical spring. The spring stiffness of this type of spring is designed to be small and the flyweight mass is light. When used on a diesel engine of a generator set, there are often situations where the fuel injection quantity of the fuel injection pump changes unevenly or does not change when the speed of the diesel engine of the generator set changes, resulting in faults such as speed fluctuations or jitters in the diesel engine of the generator set and inability to be used normally. Content of the Utility Model

[0004] Technical Objective: In order to overcome the deficiencies in the prior art, the utility model provides a governor assembly for improving the operating stability of a diesel engine of a generator set.

[0005] Technical Solution: To achieve the above objective, a governor assembly for improving the operating stability of a diesel engine of a generator set disclosed by the utility model includes:

[0006] A flyweight assembly, the flyweight assembly is connected to the camshaft of the diesel engine;

[0007] A first shaft, the first shaft is connected inside the reducer housing, and a governor spring is sleeved and connected on the first shaft. The governor spring is a torsion spring;

[0008] A connecting rod assembly, the connecting rod assembly is rotatably connected to a second shaft provided on the reducer housing. One end of the connecting rod assembly presses against the flyweight assembly; a third shaft is connected to the connecting rod assembly, and the torsion arms of the governor spring press against both ends of the third shaft;

[0009] A first connecting rod, one end of the first connecting rod is hinged to the rack, and the other end of the first connecting rod is hinged to the other end of the connecting rod assembly.

[0010] Preferably, the connecting rod assembly includes a second connecting rod, a third connecting rod and a push rod; one end of the second connecting rod and one end of the third connecting rod are hinged to each other, the push rod is fixedly connected to one end of the second connecting rod, and the second connecting rod is rotatably connected to the second shaft; one end of the push rod presses against the flyweight assembly.

[0011] Preferably, the flyweight assembly includes a flyweight bracket, a flyweight body, a sleeve, a thrust bearing and a top pin; the flyweight body is rotatably connected to the flyweight bracket, at least two flyweight bodies are circumferentially arrayed along the flyweight bracket, the flyweight bracket is fixedly connected to the camshaft, the sleeve is slidably connected to the camshaft, the sleeve can slide axially along the camshaft, and the top pin is connected to the end of the sleeve through the thrust bearing.

[0012] Preferably, it further includes a spring push rod, the spring push rod is connected to the reducer housing, and one end of the spring push rod is press-connected to the other end of the push rod.

[0013] Preferably, it further includes a setscrew, the setscrew is screwed to the reducer housing, and one end of the setscrew is press-connected to the third connecting rod.

[0014] The utility model has the following technical effects:

[0015] (1) In this solution, the speed regulating spring adopts a torsion spring structure with two spring arms. The speed regulating spring is fixed by screws, and the two spring arms act on the third shaft of the speed regulating arm respectively. When the torsion spring structure of the speed regulating spring is working, its spring force changes following the change of the rotation angle, with few influencing factors and good stability.

[0016] (2) The setting of the sleeve reduces the friction between the sleeve and the camshaft, improving the sensitivity of the governor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the governor in the utility model;

[0018] Figure 2 is a schematic structural diagram of the flyweight assembly;

[0019] Figure 3 is a schematic structural diagram of the sleeve, the thrust bearing and the top pin;

[0020] Figure 4 is a schematic structural diagram of the fixing structure of the speed regulating spring;

[0021] 1. Flyweight assembly; 2. Camshaft; 3. First shaft; 4. Housing; 5. Governor spring; 6. Connecting rod assembly; 7. Second shaft; 8. First connecting rod; 9. Rack; 10. Second connecting rod; 11. Third connecting rod; 12. Push rod; 13. Flyweight bracket; 14. Flyweight body; 15. Sleeve; 16. Thrust bearing; 17. Thrust pin; 18. Spring pressure rod; 19. Set screw; 20. Third shaft; 21. Gasket; 22. Screw. Detailed implementation

[0022] The following combines the attached Figure 1 to the attached Figure 4 Describe the principles and features of the present utility model. The examples given are only used to explain the present utility model and are not used to limit the scope of the present utility model.

[0023] A governor assembly for improving the operating stability of a diesel engine in a generator set, comprising a flyweight assembly 1, a first shaft 3, a connecting rod assembly 6, a first connecting rod 8, a spring pressure rod 18 and a set screw 19.

[0024] The flyweight assembly 1 is connected to the camshaft 2 of the diesel engine. Specifically, the flyweight assembly 1 includes a flyweight bracket 13, a flyweight body 14, a sleeve 15, a thrust bearing 16 and a thrust pin 17. The flyweight body 14 is rotatably connected to the flyweight bracket 13 by a pin shaft. In this embodiment, four flyweight bodies 14 are connected to the flyweight bracket 13, and the four flyweight bodies 14 are circumferentially arranged in an array. The sleeve 15 is slidably connected to the camshaft 2, and at the same time, the sleeve 15 is arranged at the center of the array of the four flyweight bodies 14. The sleeve 15 can slide axially along the camshaft 2, and the thrust pin 17 is connected to the end of the sleeve 15 through the thrust bearing 16 and the clearance between the thrust bearing 16 and the sleeve 15 can be adjusted by the gasket 21. The camshaft 2 represents the output speed of the diesel engine set, and the flyweight body 14 pushes the sleeve 15 to slide along the camshaft 2 under the action of centrifugal force. The faster the output speed of the camshaft 2, the farther the sliding distance of the sleeve 15.

[0025] The first shaft 3 is connected inside the reducer housing 4, and the first shaft 3 is arranged above the flyweight assembly 1. A governor spring 5 is sleeved and connected to the first shaft 3. The governor spring 5 is a torsion spring and is fixedly connected to the first shaft 3 by a screw 22. Torsion arms are respectively formed at both ends of the governor spring 5.

[0026] Inside the reducer housing 4, a second shaft 7 is provided, and the connecting rod assembly 6 is rotatably connected to the second shaft 7. A third shaft 20 is connected to the connecting rod assembly 6, and the torsion arms of the speed regulating spring 5 press against both ends of the third shaft 20. One end of the connecting rod assembly 6 presses against the flyweight assembly 1. Specifically, the connecting rod assembly 6 includes a second connecting rod 10, a third connecting rod 11, and a push rod 12. One end of the second connecting rod 10 is hinged to one end of the third connecting rod 11, the push rod 12 is fixedly connected to one end of the second connecting rod 10, and the second connecting rod 10 is rotatably connected to the second shaft 7; one end of the push rod 12 presses against the flyweight assembly 1. The reducer housing 4 is connected with a spring pressure rod 18, one end of the spring pressure rod 18 is press-connected to a top pin 17, and the spring pressure rod 18 serves as a stabilizer to adjust the maximum speed of the engine. When the rotational speed of the camshaft 2 decreases, the sleeve 15 slides reversely under the action of the spring pressure rod 18.

[0027] A setscrew 19 is screwed on the reducer housing 4, and one end of the setscrew 19 presses against the third connecting rod 11. The setscrew 19 mainly plays a role in limiting the third connecting rod 11 and is used to adjust the maximum fuel quantity.

[0028] One end of the first connecting rod 8 is hinged to the toothed rod 9, and the other end of the first connecting rod 8 is hinged to the other end of the connecting rod assembly 6. By adjusting the toothed rod 9, the fuel injection quantity of the fuel injection pump is ultimately adjusted, and the purpose of speed regulation is ultimately achieved.

[0029] Because the speed regulating spring 5 adopts a torsion spring structure with spring arms, the spring force only changes with the change of the rotation angle, the influencing factors are single and relatively stable, which is beneficial to the centrifugal force of the flyweight assembly 1 and the spring force of the speed regulating spring 5 to be in a balanced state, and is beneficial to the stability of the operation of the diesel engine of the generating set.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A governor assembly for improving the operating stability of a diesel engine in a generating set, characterized in that, Comprising: A flyweight assembly (1), the flyweight assembly (1) being connected to the camshaft (2) of a diesel engine; A first shaft (3), the first shaft (3) being connected inside a reducer housing (4), a speed-regulating spring (5) being sleeved and connected to the first shaft (3), the speed-regulating spring (5) being a torsion spring; A connecting rod assembly (6), the connecting rod assembly (6) being rotatably connected to a second shaft (7) provided in the reducer housing (4), one end of the connecting rod assembly (6) pressing against the flyweight assembly (1); a third shaft (20) being connected to the connecting rod assembly (6), the torsion arms of the speed-regulating spring (5) pressing against both ends of the third shaft (20); A first connecting rod (8), one end of the first connecting rod (8) being hinged to a toothed rod (9), and the other end of the first connecting rod (8) being hinged to the other end of the connecting rod assembly (6).

2. The governor assembly for improving the operating stability of the diesel engine of the generating set according to claim 1, characterized in that, The connecting rod assembly (6) includes a second connecting rod (10), a third connecting rod (11) and a push rod (12); one end of the second connecting rod (10) and one end of the third connecting rod (11) are hinged to each other, the push rod (12) is fixedly connected to one end of the second connecting rod (10), and the second connecting rod (10) is rotatably connected to the second shaft (7); one end of the push rod (12) presses against the flyweight assembly (1).

3. The governor assembly for improving the operating stability of the diesel engine of the generating set according to claim 2, characterized in that, The flyweight assembly (1) includes a flyweight bracket (13), flyweight bodies (14), a sleeve (15), a thrust bearing (16) and a top pin (17); the flyweight bodies (14) are rotatably connected to the flyweight bracket (13), at least two flyweight bodies (14) are circumferentially arrayed along the flyweight bracket (13), the flyweight bracket (13) is fixedly connected to the camshaft (2), the sleeve (15) is slidably connected to the camshaft (2), the sleeve (15) can slide axially along the camshaft (2), and the top pin (17) is connected to the end of the sleeve (15) through the thrust bearing (16).

4. The governor assembly for improving the operating stability of the diesel engine of the generator set according to claim 3, characterized in that, Further included is a spring pressure rod (18), the spring pressure rod (18) being connected to the reducer housing (4), one end of the spring pressure rod (18) being in pressing connection with the other end of the push rod (12).

5. The governor assembly for improving the operating stability of the diesel engine of the generator set according to claim 3, characterized in that, Further included is a setscrew (19), the setscrew (19) being screwed to the reducer housing (4), one end of the setscrew (19) being in pressing connection with the third connecting rod (11).

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