CN214577394U - Electronic speed regulation structure in single-cylinder air-cooled diesel generator - Google Patents
Electronic speed regulation structure in single-cylinder air-cooled diesel generator Download PDFInfo
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- CN214577394U CN214577394U CN202120888556.4U CN202120888556U CN214577394U CN 214577394 U CN214577394 U CN 214577394U CN 202120888556 U CN202120888556 U CN 202120888556U CN 214577394 U CN214577394 U CN 214577394U
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Abstract
The utility model provides an electronic type speed governing structure among single cylinder air-cooled diesel generator belongs to fuel generator technical field. The fuel generator solves the technical problem that the oil inlet quantity of an engine in the existing fuel generator can not be accurately controlled. The single-cylinder air-cooled diesel generator comprises a magneto and an engine, wherein the engine comprises a box body and an oil supply assembly arranged on the box body; the electronic speed regulation structure comprises a driving motor and a shifting fork, wherein the shifting fork is connected with an accelerator in an oil supply assembly and can control the opening and closing angle of the accelerator; an output shaft of the driving motor is connected with the shifting fork and can drive the shifting fork to swing back and forth; the electronic speed regulating structure also comprises a central processing unit and a rotating speed acquisition unit for measuring and calculating the rotating speed of the magnetor. The utility model provides an electronic type speed governing structure can accurate reliable control fuel engine's oil feed volume and rotational speed.
Description
Technical Field
The utility model belongs to the technical field of the generator equipment, a electronic type speed governing structure among single cylinder air-cooled diesel generator is related to.
Background
A generator is a mechanical device that converts mechanical energy into electrical energy. In the prior art, a fuel generator is a common generator type, power is generated by the fuel generator, chemical energy is converted into kinetic energy, then the generator set generates electric energy, and fuels such as gasoline, diesel oil and the like are widely applied to various fuel generators. Therefore, the power of the fuel engine needs to be adjusted according to the change of the load power of the motor. Traditional engine speed governing mechanism is mechanical type shift fork speed governing in the market, and traditional single cylinder air-cooled diesel engine speed regulator theory of operation is: when the rotating speed of the diesel engine is increased, the flyweight is automatically opened under the action of the centrifugal force of the operation and drives the speed-regulating push disc, the speed-regulating push disc generates an axial force and pushes the axial force outwards to press the lower end of the lever of the speed-regulating shift fork, the speed-regulating shift fork rotates, and the opening of the speed-regulating shift fork drives the fuel injection pump to reduce the fuel quantity so as to control the rotating speed. When the rotating speed is reduced, otherwise, the flyweight is automatically closed due to the action of the running centrifugal force, the spring on the speed regulating shaft is restored, the oil quantity is increased and the rotating speed is increased according to the procedure, so that the aim of regulating the speed is fulfilled; the structure is not intelligent enough, accurate and reliable, has high failure rate, and is easy to have the problems of galloping, traveling, high idle speed, high speed regulation rate and the like.
At present, most diesel engines for power generation adopt an in-line plunger type fuel injection pump for high-pressure fuel injection, so that a related structure for driving the fuel injection pump to realize power control through an electronic speed regulator gradually appears.
For example, a Chinese patent (publication number: CN 203420778U; publication date: 2014-02-05) discloses an energy-saving generator set, which comprises a generator, an engine, a base oil tank, a fuel oil path and a carburetor, wherein the carburetor is arranged on the fuel oil path, the engine is connected with the generator through a connecting piece, a fuel oil energy-saving device is arranged in the carburetor, the fuel oil energy-saving device comprises an upper end cover and a lower end cover, a pair of magnetic steels are symmetrically arranged between the upper end cover and the lower end cover, and a through hole for the oil path to pass through is formed in the middle of the upper end cover and the lower end cover; an electromagnetic mutual inductor is installed at the output end of the generator, a first output end of the electromagnetic mutual inductor is connected with a negative electrode of a direct-current power supply, a second output end of the electromagnetic mutual inductor is connected with an accelerator driving electromagnetic valve for controlling an engine accelerator and then is connected with a positive electrode of the direct-current power supply, the accelerator driving electromagnetic valve controls the opening degree of the engine accelerator through a transmission mechanism, the transmission mechanism is composed of a speed regulating arm and an accelerator pull rod for controlling the opening degree of the engine accelerator, the speed regulating arm is close to a magnetic core of the accelerator driving electromagnetic valve, one end of the speed regulating arm is connected to a body of the engine, and the other end of the speed regulating arm is connected with the accelerator pull rod.
The generator set disclosed in the above patent document is mainly driven by a gasoline engine, and the power of the engine is adjusted by controlling the opening degree of an engine throttle through an electromagnetic valve and a transmission mechanism; but does not disclose a specific mounting structure thereof; similar structures generally have the defects of large volume, inaccurate action, poor appearance, and the like, and related structures applied to single-cylinder air-cooled small diesel generators do not exist in the prior art.
Disclosure of Invention
The utility model discloses to the above-mentioned problem that prior art exists, provide an electronic type speed governing structure among single cylinder forced air cooling diesel generator, the utility model aims to solve the technical problem that: how to improve the compactness and the accurate reliability of an electronic speed regulation structure in a single-cylinder air-cooled diesel generator.
The purpose of the utility model can be realized by the following technical proposal:
an electronic speed regulation structure in a single-cylinder air-cooled diesel generator comprises a magneto and an engine, wherein the engine is a single-cylinder air-cooled diesel engine and comprises a box body and an oil supply assembly arranged on the box body; the output shaft of the engine is connected with a rotor of the magneto, and the electronic speed regulation structure is characterized by comprising a driving motor and a shifting fork, wherein the shifting fork is connected with an accelerator in the oil supply assembly and can control the opening and closing angle of the accelerator; an output shaft of the driving motor is connected with the shifting fork and can drive the shifting fork to swing back and forth; the electronic speed regulating structure also comprises a central processing unit and a rotating speed acquisition unit for measuring and calculating the rotating speed of the output shaft of the magneto.
The working principle is as follows: the electronic speed regulation structure is particularly suitable for single-cylinder air-cooled diesel generators, such as single-cylinder air-cooled diesel generator models of 170, 173, 178,186, 188, 192 and the like in the current general generator market, and is mainly used for controlling an engine throttle; the structure of the accelerator aimed at in the technical scheme is the same as or similar to that of the traditional accelerator, and a flyweight and speed regulation push disc structure is omitted inside the engine. During use, the rotating speed of a flywheel on a crankshaft of the engine and the rotating speed of the magneto are measured and calculated through the rotating speed acquisition unit and the central processing unit, and specifically, the rotating speeds can be analyzed and calculated according to the change frequency of a winding magnetic signal in the magneto and the like; the central processing unit judges the load and the working condition of a user according to the load and the working condition, so that the corresponding action of the driving motor is controlled, the driving motor rotates forwards or backwards, the driving motor drives the shifting fork to act, the accelerator of the engine is opened or closed by a certain angle under the driving of the driving motor and the shifting fork, the speed of the engine is controlled by controlling the oil inlet amount, and idle running or high-speed running is realized. In the technical scheme, the automatic control of the accelerator and the rotating speed of the engine is realized through automatic detection and intelligent control, and the fuel combustion efficiency in the single-cylinder air-cooled diesel generator is improved; in the whole working process, the electric control system monitors the rotating speed of the engine in real time and feeds back the rotating speed in time, and the whole process is stable and reliable.
In the technical scheme, the driving motor is used for replacing a peripheral speed regulating mechanism, the internal structure is basically unchanged, the flyweight and speed regulating push disc structure is removed, the speed of the fuel engine is regulated and controlled according to the load and the working condition of a user in the operation process, and the change of the rotating speed is more accurate and intelligent.
In the electronic speed regulation structure in the single-cylinder air-cooled diesel generator, the driving motor is a stepping motor, a fixed block is fixedly arranged on a box body of the engine, the stepping motor is fixedly arranged on the fixed block, and an output shaft of the stepping motor faces towards the shifting fork.
In the electronic speed regulating structure in the single-cylinder air-cooled diesel generator, the upper side of the fixed block is fixedly arranged outside a box body of the engine through a bolt, the stepping motor is provided with a housing, the lower side of the fixed block is bent, and the housing of the stepping motor is fixedly arranged on the lower side of the fixed block through the bolt; the shifting fork is positioned in a box body of the engine; the lower extreme of shift fork with step motor's output shaft is connected, the upper end of shift fork with oil supply unit is connected.
In the electronic speed regulation structure in the single-cylinder air-cooled diesel generator, a shifting fork shaft is fixedly connected to an output shaft of the stepping motor, a mounting hole is formed in the lower end of the shifting fork, one end of the shifting fork shaft is inserted into the mounting hole of the shifting fork, and a pin for locking the shifting fork shaft is screwed on the shifting fork.
In the electronic speed regulation structure in the single-cylinder air-cooled diesel generator, the output shaft of the stepping motor is connected with the other end of the shifting fork shaft through a coupler, and the coupler is further sleeved with a return spring. The reset spring not only has the reset function, but also can eliminate the gap between the output shaft of the stepping motor and the shaft coupler by the torque of the reset spring when the output shaft of the stepping motor is inserted into the shaft coupler, and overcome the size error caused by machining error and assembly error, thereby ensuring that the output shaft of the stepping motor and the shaft coupler are more accurate and reliable in transmission.
In the electronic speed regulating structure in the single-cylinder air-cooled diesel generator, the central processing unit is a singlechip.
The rotating speed acquisition unit and the central processing unit analyze and calculate the rotating speed of an output shaft of the magneto according to the change frequency of a winding magnetic signal in the magneto and the like, then the central processing unit compares the rotating speed with a preset rotating speed, the central processing unit adjusts the action of the stepping motor through a calculus circuit and the like, the position of a shifting fork is accurately adjusted by using the output shaft of the stepping motor, the position of an accelerator and the oil injection quantity are further controlled, and finally the corresponding power of the engine is obtained.
Compared with the prior art, the utility model has the advantages of it is following:
1. under a plurality of working conditions of diesel engine operation, the electronic speed regulation structure can directly control the throttle opening according to the load of user equipment, make accurate adjustment, control the rotating speed within the range required by the user, avoid long-term high-speed operation and effectively prolong the service life of the engine; especially under the working conditions of low load and idling, the fuel is effectively saved, the noise is reduced, and the discharge amount of harmful substances is reduced.
2. In the technical scheme, the automatic control of the accelerator and the rotating speed of the engine is realized through automatic detection and intelligent control, and the fuel combustion efficiency in the single-cylinder air-cooled diesel generator is improved; in the whole working process, the electric control system monitors the rotating speed of the engine in real time and feeds back the rotating speed in time, and the whole process is stable and reliable.
3. According to the technical scheme, the stepping motor is adopted to replace a peripheral speed regulating mechanism, the internal structure is unchanged, so that the speed of the fuel engine is regulated and controlled according to the load and the working condition of a user in the operation process, and the change of the rotating speed is more accurate and intelligent.
Drawings
Fig. 1 is a schematic view of the mounting structure of the electronic speed regulation structure.
Fig. 2 is a schematic perspective view of the electronic speed regulation structure.
FIG. 3 is a schematic diagram of the control flow structure of the electronic speed control structure.
In the figure, 1, an engine; 11. a box body; 12. an oil supply assembly; 2. a drive motor; 21. a stepping motor; 21a, a housing; 3. a shifting fork; 31. mounting holes; 32. a pin; 4. a fixed block; 5. a fork shaft; 6. a coupling; 7. a return spring.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
The electronic speed regulation structure is particularly suitable for single-cylinder air-cooled diesel generators, such as single-cylinder air-cooled diesel generator models of 170, 173, 178,186, 188, 192 and the like in the current general generator market, and is mainly used for controlling the accelerator of a diesel engine; the structure of the throttle aimed at in the embodiment is the same as or similar to that of a traditional diesel engine, and a flyweight and speed regulation push disc structure is omitted inside the engine. As shown in fig. 1 to 3, the single-cylinder air-cooled diesel generator in the present embodiment includes a magneto and an engine 1, where the engine 1 is a single-cylinder air-cooled diesel engine, and the engine 1 includes a box body 11 and an oil supply assembly 12 disposed on the box body 11; the oil supply assembly 12 comprises an oil pump and the like, an output shaft of the engine 1 is connected with a rotor of the magneto, and the output shaft of the engine 1 rotates to drive the rotor of the magneto to rotate; the electronic speed regulation structure comprises a driving motor 2 and a shifting fork 3, wherein the shifting fork 3 is connected with an accelerator in an oil supply assembly 12 and can control the opening and closing angle of the accelerator; an output shaft of the driving motor 2 is connected with the shifting fork 3 and can drive the shifting fork 3 to swing back and forth; the electronic speed regulating structure also comprises a central processing unit and a rotating speed acquisition unit for measuring and calculating the rotating speed of the magneto.
In the use process, the central processing unit and the rotating speed acquisition unit measure and calculate the rotating speed of the output shaft of the magneto by utilizing the electromagnetic induction periodic frequency of the magneto winding, the central processing unit judges the load and the working condition of a user according to the rotating speed, so that the corresponding action of the driving motor 2 is controlled, the driving motor 2 rotates forwards or backwards, the driving motor 2 drives the shifting fork 3 to act, the accelerator of the engine 1 is opened or closed for a certain angle under the driving of the driving motor 2 and the shifting fork 3, the speed of the engine 1 is controlled by controlling the oil inlet amount, and the idling operation or the high-speed operation is realized. In the embodiment, the automatic control of the accelerator and the rotating speed of the engine 1 is realized through automatic detection and intelligent control, and the fuel combustion efficiency in the single-cylinder air-cooled diesel generator is improved; in the whole working process, the electric control system monitors the rotating speed of the engine 1 in real time and feeds back the rotating speed in time, and the whole process is stable and reliable. In the embodiment, the driving motor 2 is used for replacing a peripheral speed regulating mechanism, the internal structure is basically unchanged, the traditional flyweight and speed regulating push disc structure is removed, the speed of the fuel engine 1 is regulated and controlled according to the load and the working condition of a user in the operation process, and the rotation speed is more accurately and intelligently changed.
Further, the driving motor 2 in this embodiment is a stepping motor 21, a fixing block 4 is fixedly arranged on the box body 11 of the engine 1, the stepping motor 21 is fixedly arranged on the fixing block 4, and an output shaft of the stepping motor 21 faces the shifting fork 3; the upper side of the fixed block 4 is fixedly arranged on the outer side of the box body 11 of the engine 1 through bolts, the stepping motor 21 is provided with a housing 21a, the lower side of the fixed block 4 is bent, and the housing 21a of the stepping motor 21 is fixedly arranged on the lower side of the fixed block 4 through bolts; the shifting fork 3 is positioned in a box body 11 of the engine 1; the lower end of the shifting fork 3 is connected with an output shaft of the stepping motor 21, and the upper end of the shifting fork 3 is connected with the oil supply component 12; furthermore, a shifting fork shaft 5 is fixedly connected to an output shaft of the stepping motor 21, a mounting hole 31 is formed in the lower end of the shifting fork 3, one end of the shifting fork shaft 5 is inserted into the mounting hole 31 of the shifting fork 3, a pin 32 for locking the shifting fork shaft 5 is screwed on the shifting fork 3, and the shifting fork 3 and the shifting fork shaft 5 form a shifting fork lever assembly integrally; the output shaft of the stepping motor 21 is connected with the other end of the shifting fork shaft 5 through a coupler 6, and a return spring 7 is further sleeved on the coupler 6.
The central processing unit in the embodiment is a single chip microcomputer; the rotating speed acquisition unit and the central processing unit analyze and calculate the rotating speed of an output shaft of the magneto according to the change frequency of a winding magnetic signal in the magneto and the like, then the central processing unit compares the rotating speed with the preset rotating speed, the central processing unit regulates the action of the stepping motor 21 through a calculus circuit and the like, the position of the shifting fork 3 is accurately regulated by utilizing the output shaft of the stepping motor 21, the position of an oil valve and the oil injection quantity are further controlled, and finally the corresponding power of the engine 1 is obtained.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. An electronic speed regulation structure in a single-cylinder air-cooled diesel generator comprises a magneto and an engine (1), wherein the engine (1) is a single-cylinder air-cooled diesel engine, and the engine (1) comprises a box body (11) and an oil supply assembly (12) arranged on the box body (11); the output shaft of the engine (1) is connected with a rotor of the magneto, and the electronic speed regulation structure is characterized by comprising a driving motor (2) and a shifting fork (3), wherein the shifting fork (3) is connected with an accelerator in the oil supply assembly (12) and can control the opening and closing angle of the accelerator; an output shaft of the driving motor (2) is connected with the shifting fork (3) and can drive the shifting fork (3) to swing back and forth; the electronic speed regulating structure also comprises a central processing unit and a rotating speed acquisition unit for measuring and calculating the rotating speed of the magnetor.
2. The electronic speed regulation structure in the single-cylinder air-cooled diesel generator of claim 1, characterized in that the driving motor (2) is a stepping motor (21), a fixed block (4) is fixedly arranged on a box body (11) of the engine (1), the stepping motor (21) is fixedly arranged on the fixed block (4), and an output shaft of the stepping motor (21) faces the shifting fork (3).
3. The electronic speed regulation structure in the single-cylinder air-cooled diesel generator of claim 2, characterized in that the upper side of the fixed block (4) is fixed outside the box (11) of the engine (1) by bolts, the stepping motor (21) has a cover (21a), the lower side of the fixed block (4) is bent, and the cover (21a) of the stepping motor (21) is fixed on the lower side of the fixed block (4) by bolts; the shifting fork (3) is positioned in a box body (11) of the engine (1); the lower extreme of shift fork (3) with the output shaft of step motor (21) is connected, the upper end of shift fork (3) with fuel feeding unit (12) are connected.
4. The electronic speed regulation structure in the single-cylinder air-cooled diesel generator according to claim 3, characterized in that a shift fork shaft (5) is fixedly connected to an output shaft of the stepping motor (21), a mounting hole (31) is formed in the lower end of the shift fork (3), one end of the shift fork shaft (5) is inserted into the mounting hole (31) of the shift fork (3), and a pin (32) for locking the shift fork shaft (5) is screwed on the shift fork (3).
5. The electronic speed regulation structure in the single-cylinder air-cooled diesel generator according to claim 4, characterized in that the output shaft of the stepping motor (21) is connected with the other end of the fork shaft (5) through a coupling (6), and the coupling (6) is further sleeved with a return spring (7).
6. The electronic speed regulation structure in the single cylinder air-cooled diesel generator of claim 1, 2, 3, 4 or 5, characterized in that the central processing unit is a single chip microcomputer.
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CN202120888556.4U CN214577394U (en) | 2021-04-27 | 2021-04-27 | Electronic speed regulation structure in single-cylinder air-cooled diesel generator |
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CN202120888556.4U CN214577394U (en) | 2021-04-27 | 2021-04-27 | Electronic speed regulation structure in single-cylinder air-cooled diesel generator |
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Address after: 318020 No. 17, Qingfeng Avenue, Beicheng street, Huangyan District, Taizhou City, Zhejiang Province (self declaration) Patentee after: TAIZHOU SEEDER ELECTRONICS Co.,Ltd. Address before: 318020 8 Huimin Road, North Town Development Area, Huangyan District, Taizhou, Zhejiang Patentee before: TAIZHOU SEEDER ELECTRONICS Co.,Ltd. |