CN114790947A - Speed regulating system of engine - Google Patents
Speed regulating system of engine Download PDFInfo
- Publication number
- CN114790947A CN114790947A CN202110106446.2A CN202110106446A CN114790947A CN 114790947 A CN114790947 A CN 114790947A CN 202110106446 A CN202110106446 A CN 202110106446A CN 114790947 A CN114790947 A CN 114790947A
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- China
- Prior art keywords
- speed regulating
- lever
- engine
- swing arm
- pull rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 75
- 238000003466 welding Methods 0.000 claims abstract description 73
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 38
- 239000000446 fuel Substances 0.000 abstract description 14
- 230000001276 controlling effect Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000010705 motor oil Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D1/12—Transmission of control impulse to pump control, e.g. with power drive or power assistance non-mechanical, e.g. hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
- F02D2001/082—Transmission of control impulse to pump control, e.g. with power drive or power assistance electric
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
The invention belongs to the technical field of engines, and relates to a speed regulating system of an engine. According to the technical scheme, the stepping motor is arranged on the motor mounting plate on the side face of the air guide cover welding piece, the inlet at the front end of the air guide cover welding piece is an engine cooling air inlet, and the temperature of the air guide cover welding piece is low, so that the stepping motor can work stably and reliably. The speed regulating system has simple structure, less change and convenient installation, can automatically control the oil mass of an engine oil injection pump according to the change of load and the change of the rotating speed of the engine, thereby accurately controlling the rotating speed of the engine, reducing the fuel consumption of the engine during low-load and no-load operation, having high speed regulating precision and leading the engine to operate stably and reliably.
Description
Technical Field
The invention belongs to the technical field of engines, and relates to a speed regulating system of an engine.
Background
In the current engine field, especially the single cylinder engine field, the speed regulation of the engine mainly adopts a mechanical centrifugal speed regulator, a fuel injection pump assembly is arranged on a machine body, a speed regulating shaft and a speed regulating gear are arranged on a crankcase cover, a flyweight and a sliding sleeve are arranged inside the speed regulating gear, a lever shifting fork component is arranged inside the machine body, a speed regulating handle and a speed regulating panel, a speed regulating spring, a return spring and the like are arranged outside the machine body, when in work, a speed regulating system leads the rotating speed of the speed regulating gear to change according to the change of load, thereby changing the centrifugal force of the flyweight and the opening degree of the flyweight, further changing the positions of the sliding sleeve and the shifting fork to change the position of a fuel pump fuel control sleeve, determining the fuel pump fuel amount through the balance of the centrifugal force of the flyweight and the elastic force of the externally arranged speed regulating spring, further determining the fuel amount of the fuel pump and controlling the rotating speed of the engine, the mechanical speed regulating structure is used for the flyweight, the matching requirement of the sliding sleeve and the speed regulating spring is high, the integral speed regulating sensitivity is poor, the precision is poor, and the consistency is poor.
Disclosure of Invention
The invention aims to provide a speed regulating system of an engine, which has the advantages of simple structure, convenience in installation, high speed regulating precision and stable and reliable engine rotating speed. In order to achieve the purpose, the invention adopts the following technical scheme: a speed regulating system of engine is prepared as setting fuel injection pump assembly in fuel injection pump mounting hole of engine body, setting lever fork component in lever shaft and speed regulation lever welding piece, connecting said fork and speed regulation lever welding piece to lever shaft through pin, setting lever fork component in lever shaft mounting hole of engine body and contacting said lever fork component with fuel pump fuel control sleeve, fastening wind guide cover welding piece on end surface of engine body through bolt, removing speed regulation spring mounting hole from speed regulation lever welding piece and welding connection pin on speed regulation lever, speed governing lever return spring installs on speed governing lever welding piece excircle, and one end is fixed on the organism lug, and the swing arm welding piece contains swing arm and swing arm connecting pin, connects into wholly through the welded connection, and the pull rod part contains the connecting bearing at pull rod and both ends, connects into wholly through nut and packing ring, and pull rod part one end and speed governing lever welding piece connecting pin are connected, and the other end and swing arm welding piece connecting pin are connected to it is fixed with the elastic pin, and the step motor subassembly contains step motor and control module, and the integrated manufacturing is integrative, and the motor shaft is connected with the swing arm shaft hole, the horizontal side welding of wind scooper welding piece have the step motor mounting panel, step motor installs on the motor mounting panel. Particularly, the speed regulating lever welding piece is in a symmetrical strip shape, and the symmetrical center line of the speed regulating lever welding piece is superposed with the symmetrical center line of the shifting fork during installation.
Particularly, the swing arm welding piece is in a long strip shape, a long groove is formed in the position of a swing arm shaft hole, and the swing arm welding piece is connected with a motor shaft after being tightened through a screw hole in the side face.
Particularly, the connecting bearings at the two ends of the pull rod part are joint bearings, and spherical surface matching is adopted, so that the position compensation of the pull rod part during working is met.
In particular, the motor assembly is internally integrated with a control module, and an additional control module is not needed.
Particularly, the motor mounting plate welded on the horizontal side surface of the wind scooper welding part is integrated, the upper end, the lower end and the rear end are closed, and the front end is provided with an opening for mounting the swing arm welding part and the pull rod part.
The invention has the advantages that compared with the prior art, the invention cancels the parts of a speed regulating shaft, a speed regulating gear, a flyweight, a sliding sleeve, a speed regulating spring, a return spring, a speed regulating handle, a speed regulating panel and the like, simplifies the structure of a speed regulating lever welding part, designs the speed regulating lever welding part into a symmetrical strip shape, cancels the mounting holes of the speed regulating spring and the return spring, has the symmetrical central line superposed with the symmetrical central line of a shifting fork when in mounting, is welded with a connecting pin on the speed regulating lever, is additionally provided with the speed regulating lever return spring, a swing arm welding part, a pull rod part and a stepping motor component, and is welded and mounted on the horizontal side surface of a wind scooper welding part. When the engine works, the rotating speed signal is transmitted to the control module of the stepping motor by detecting the rotating speed of the engine, so that the rotating angle of the stepping motor assembly is controlled, the rotating angle of the swing arm is controlled, the rotating angles of the speed regulation lever welding part and the shifting fork are controlled through the pull rod part, the rotating angle of the oil pump oil quantity control sleeve is controlled, and the rotating speed of the engine is controlled by controlling the oil quantity of the oil pump. The speed regulating mechanism has the advantages that the stepping motor is arranged on the motor mounting plate on the side surface of the wind scooper welding part, the inlet at the front end of the wind scooper welding part is the cooling air inlet of the engine, and the temperature of the wind scooper welding part is low, so that the stepping motor can work stably and reliably. The speed regulating system has simple structure, less change and convenient installation, can automatically control the oil quantity of an engine oil injection pump according to the change of load and the change of the rotating speed of the engine, thereby accurately controlling the rotating speed of the engine, reducing the fuel consumption of the engine during low-load and no-load operation, having high speed regulating precision and leading the engine to operate stably and reliably.
Drawings
FIG. 1 is an overall outline view of an engine governor system according to an embodiment of the present invention
FIG. 2 is a view of an engine governor system according to an embodiment of the present invention from the A direction
FIG. 3 is a front side of a structural layout diagram of an engine governor system according to an embodiment of the present invention
FIG. 4 is a rear side of a structural layout view of an engine governor system according to an embodiment of the present invention
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the embodiment, the speed regulating system of the engine comprises a machine body 1, an oil injection pump assembly 13, a lever shifting fork component 3 and an air guide cover welding part 9, wherein the oil injection pump assembly 13 comprises an oil outlet valve seat 13-1, a pump body plunger matching part 13-2, a plunger spring 13-3, an oil quantity control sleeve 13-4, a tappet body component 13-5 and the like, the oil injection pump assembly 13 is arranged in an oil injection pump mounting hole of the machine body 1, the lever shifting fork component 3 comprises a shifting fork 3-1, a lever shaft 3-2 and a speed regulating lever welding part 3-3, the shifting fork 3-1 and the speed regulating lever welding part 3-3 are connected to the lever shaft 3-2 through a positioning pin 3-5, the lever shifting fork component 3 is arranged in the lever shaft mounting hole of the machine body 1 and is in contact with the oil quantity control sleeve 13-4 of an oil pump, the wind scooper welding piece 9 is fastened on the end face of the machine body 1 through bolts, wherein a speed regulating spring mounting hole is omitted in the speed regulating lever welding piece 3-3, a connecting pin 3-4 is welded on the speed regulating lever, the speed regulating system further comprises a speed regulating lever return spring 2, a swing arm welding piece 6, a pull rod part 5 and a stepping motor component 8, the speed regulating lever return spring 2 is mounted on the outer circle of the speed regulating lever welding piece 3-3, one end of the speed regulating lever return spring is fixed on the machine body lug 1-1, the swing arm welding piece 6 comprises a swing arm 6-2 and a swing arm connecting pin 6-1 and is connected into a whole through welding, the pull rod part 5 comprises a pull rod 5-4 and connecting bearings 5-1 at two ends, the pull rod part is connected into a whole through a nut 5-2 and a washer 5-3, one end of the pull rod part 5 is connected with the speed regulating lever welding piece connecting pin 3-4, the other end of the wind guide cover is connected with a connecting pin 6-1 of a swing arm welding piece and is fixed by an elastic pin 4, a stepping motor component 8 comprises a stepping motor and a control module and is integrally manufactured into a whole, a motor shaft 8-1 is connected with a shaft hole 6-5 of the swing arm, a stepping motor mounting plate 9-1 is welded on the horizontal side surface of the wind guide cover welding piece 9, and the stepping motor component 8 is mounted on the motor mounting plate 9-1. The speed regulating lever welding piece 3-3 is symmetrical long strip, and the symmetrical center line of the speed regulating lever welding piece is superposed with the symmetrical center line of the shifting fork 3-1 during installation. The swing arm welding piece 6 is in a strip shape, a long groove 6-3 is formed in the position of a swing arm shaft hole 6-5, and the swing arm welding piece is tightly screwed through a screw hole 6-4 in the side face and then connected with a motor shaft 8-1 through a screw 7. The connecting bearings 5-1 at the two ends of the pull rod component 5 are joint bearings, and spherical surface matching is adopted, so that the position compensation of the pull rod component 5 during working is met. And a control module is integrated in the stepping motor assembly 8, so that an additional control module is not needed. The motor mounting plate 9-1 welded on the horizontal side surface of the wind scooper welding piece 9 is of an integral type, the upper end, the lower end and the rear end are closed, and the front end is provided with an opening for mounting the swing arm welding piece 6 and the pull rod piece 5. When the device is installed, firstly, a shifting fork 3-1 is installed on a lever shaft 3-2 through a positioning pin 3-5, an adjusting gasket 14 is sleeved on the lever shaft 3-2, the shifting fork 3-1, the lever shaft 3-2 and the adjusting gasket 14 are integrally installed in a lever shaft installation hole of a machine body 1, a lever shaft oil seal 15, the adjusting gasket 14 and a speed adjusting lever welding piece 3-3 are sequentially sleeved at the other end of the lever shaft 3-2, a speed adjusting lever return spring 2 is sleeved on the outer circle of the speed adjusting lever welding piece 3-3, one end of the speed adjusting lever return spring is fixed on a machine body lug 1-1, and the speed adjusting lever welding piece 3-3 is fixed on the lever shaft 3-2 through the positioning pin 3-5. The wind scooper welding piece 9 is fixed on the end face of the machine body 1 through bolts, the stepping motor assembly 8 is arranged on a motor mounting plate 9-1 on the horizontal side face of the wind scooper welding piece 9 and is locked through a screw 10, a gasket 11 and a gasket 12. Then the swing arm welding piece 6 is sleeved on the stepping motor shaft 8-1 and is fixed by a screw 7 through a screw hole 6-4 on the side surface of the swing arm welding piece 6. Then, two ends of the pull rod part 5 are respectively sleeved on a connecting pin 3-4 of a welding part of the speed regulating lever and a connecting pin 6-1 of a welding part of the swing arm and are fixed by an elastic pin 4. And finally, the oil injection pump assembly 13 is installed in an oil pump installation hole of the engine body 1, and a control ball head of an oil injection pump oil quantity control sleeve 13-4 is ensured to be installed in an installation groove at the top of the shifting fork 3-1 during installation so as to prevent the runaway phenomenon during engine starting. When the speed regulating system with the structure is matched with a single machine, a water pump and a general generator set, a rotating speed sensor is required to be arranged on an engine so as to obtain a rotating speed signal and provide the rotating speed signal to a stepping motor module, and when the speed regulating system is matched with a digital generator set, a voltage signal obtained from a digital motor can be utilized as a rotating speed signal and provided to the stepping motor module so as to control the rotating angle of the stepping motor and the rotating speed of the engine. When starting the engine, the engine speed signal is obtained by detecting the voltage signal of the speed sensor or the digital motor and fed back to the stepping motor module, the rotation angle and the direction of the stepping motor assembly 8 are controlled by the module, so as to control the rotation angle of the swing arm welding piece 6, the swing arm welding piece 6 controls the rotation angle of the speed regulating lever welding piece 3-3 through the pull rod part 5, so as to control the rotation angle of the shifting fork 3-1, the relative position of the oil pump oil quantity control sleeve 13-4 is controlled through the rotation of the shifting fork 3-1, so that the oil pump oil quantity control sleeve 13-4 rotates towards the direction of increasing the oil quantity, that is, the relative position of the oil pump plunger relative to the oil inlet is changed, that is, the oil quantity of the oil pump is changed, so as to control the rotation speed of the engine, the engine can run at the rated rotation speed after starting, and the engine does not need to run at the highest no-load rotation speed like mechanical speed regulation, the fuel consumption of the engine during idle load can be reduced, when the engine is loaded, the rotating speed of the engine is reduced, a rotating speed signal is fed back to the stepping motor module again by detecting a voltage signal of a rotating speed sensor or a digital motor, the rotating angle of the stepping motor assembly 8 is controlled by the module, the relative position of the oil pump oil quantity control sleeve 13-4 is controlled by the swing arm welding part 6, the pull rod part 5 and the shifting fork 3-1, the oil pump oil quantity control sleeve 13-4 is rotated in the direction of increasing the oil quantity, the engine is stabilized at the rated rotating speed until the engine is loaded to be fully loaded, the engine always works at the rated rotating speed, and the speed regulation is accurate and reliable. When the engine reduces the load, the instantaneous rotating speed of the engine rises, the rotating speed signal is fed back to the stepping motor module again by detecting the voltage signal of the rotating speed sensor or the digital motor, the rotating angle of the stepping motor assembly 8 is controlled by the module, and then the relative position of the oil pump oil quantity control sleeve 13-4 is controlled by the swing arm welding part 6, the pull rod part 5 and the shifting fork 3-1, so that the oil pump oil quantity control sleeve 13-4 rotates in the direction of reducing the oil quantity, the engine is stabilized at the rated rotating speed until the engine is reduced to be idle, the engine always works at the rated rotating speed, and the speed regulation is accurate and reliable. The speed regulating mechanism is characterized in that the stepping motor assembly 8 is arranged on the motor mounting plate 9-1 on the side surface of the wind guide cover welding piece 9, the inlet at the front end of the wind guide cover welding piece 9 is an engine cooling air inlet, and the temperature of the wind guide cover welding piece 9 is low, so that the stepping motor assembly 8 can work stably and reliably. The speed regulating mechanism has no speed regulating shaft, speed regulating gear, flyweight, sliding sleeve, speed regulating spring, return spring, speed regulating handle, speed regulating panel and other parts, and has simple structure, less change and convenient installation.
Other variations and modifications will occur to those skilled in the art from the foregoing disclosure and teachings and are, nevertheless, within the scope of the appended claims.
Claims (6)
1. The speed regulating system of the engine is characterized by comprising a machine body, an oil injection pump assembly, a lever shifting fork component and an air guide cover welding component, wherein the oil injection pump assembly comprises a pump body plunger coupling component, an oil outlet valve seat, a plunger spring, a tappet body component, an oil quantity control sleeve and the like, the oil injection pump assembly is installed in an oil injection pump installation hole of the machine body, the lever shifting fork component comprises a shifting fork, a lever shaft and a speed regulating lever welding component, the shifting fork and the speed regulating lever welding component are connected onto the lever shaft through a positioning pin, the lever shifting fork component is installed in the lever shaft installation hole of the machine body and is contacted with the oil quantity control sleeve of the oil pump, the air guide cover welding component is fastened on the end face of the machine body through a bolt, the speed regulating lever welding component cancels the speed regulating spring installation hole, a connecting pin is welded on the speed regulating lever, and the speed regulating lever further comprises a speed regulating lever return spring, The speed regulation lever return spring is installed on the outer circle of the speed regulation lever welding part, one end of the speed regulation lever return spring is fixed on a machine body lug, the swing arm welding part comprises a swing arm and a swing arm connecting pin and is connected into a whole through a nut and a gasket, the pull rod part comprises a pull rod and connecting bearings at two ends and is connected into a whole through a nut and a gasket, one end of the pull rod part is connected with the speed regulation lever welding part connecting pin, the other end of the pull rod part is connected with the swing arm welding part connecting pin and is fixed through an elastic pin, the stepping motor component comprises a stepping motor and a control module and is integrally manufactured, a motor shaft is connected with the swing arm shaft hole, a motor mounting plate is welded on the horizontal side face of the air guide cover welding part, and the stepping motor is installed on the motor mounting plate.
2. The engine speed regulating system of claim 1, wherein the speed regulating lever weldment is symmetrical and elongated, and when installed, the symmetrical center line of the speed regulating lever weldment coincides with the symmetrical center line of the shifting fork.
3. The engine speed regulating system of claim 1, wherein the swing arm weldment is elongated and has an elongated slot at the swing arm shaft hole, and is screwed and fastened to the motor shaft through the side threaded hole.
4. The engine speed regulating system of claim 1, wherein the connecting bearings at the two ends of the pull rod part are joint bearings, and spherical fit is adopted to meet the requirement of position compensation of the pull rod part during work.
5. The system of claim 1, wherein a control module is integrated within the stepper motor assembly.
6. The engine speed regulating system of claim 1, wherein the motor mounting plate welded to the horizontal side of the wind scooper weldment is integral, the upper, lower and rear ends are closed, and the front end is open for mounting the swing arm weldment and the pull rod member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106446.2A CN114790947A (en) | 2021-01-26 | 2021-01-26 | Speed regulating system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106446.2A CN114790947A (en) | 2021-01-26 | 2021-01-26 | Speed regulating system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114790947A true CN114790947A (en) | 2022-07-26 |
Family
ID=82459531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110106446.2A Pending CN114790947A (en) | 2021-01-26 | 2021-01-26 | Speed regulating system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114790947A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1916733A1 (en) * | 1968-04-06 | 1969-11-06 | Alfa Romeo Societa Per Azioni | Control device for injection pumps for internal combustion engines |
| JPH05288082A (en) * | 1992-04-02 | 1993-11-02 | Nippondenso Co Ltd | In-line fuel injection pump |
| US5564389A (en) * | 1995-07-10 | 1996-10-15 | Barber-Colman Corporation | Force motor for use in the fuel system of an internal combustion engine |
| CN1529791A (en) * | 2001-07-16 | 2004-09-15 | 洋马株式会社 | Fuel injection rate control device |
| CN101220773A (en) * | 2007-01-10 | 2008-07-16 | 布里格斯斯特拉顿公司 | Governor with take-up spring |
| CN201401234Y (en) * | 2009-02-05 | 2010-02-10 | 常柴股份有限公司 | Electronic governor for V-type water-cooled diesel engine |
| CN105422289A (en) * | 2016-01-07 | 2016-03-23 | 江苏全昌航空动力有限公司 | Double-shifting-fork execution mechanism for electronic speed regulation of single-cylinder diesel |
-
2021
- 2021-01-26 CN CN202110106446.2A patent/CN114790947A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1916733A1 (en) * | 1968-04-06 | 1969-11-06 | Alfa Romeo Societa Per Azioni | Control device for injection pumps for internal combustion engines |
| JPH05288082A (en) * | 1992-04-02 | 1993-11-02 | Nippondenso Co Ltd | In-line fuel injection pump |
| US5564389A (en) * | 1995-07-10 | 1996-10-15 | Barber-Colman Corporation | Force motor for use in the fuel system of an internal combustion engine |
| CN1529791A (en) * | 2001-07-16 | 2004-09-15 | 洋马株式会社 | Fuel injection rate control device |
| CN101220773A (en) * | 2007-01-10 | 2008-07-16 | 布里格斯斯特拉顿公司 | Governor with take-up spring |
| CN201401234Y (en) * | 2009-02-05 | 2010-02-10 | 常柴股份有限公司 | Electronic governor for V-type water-cooled diesel engine |
| CN105422289A (en) * | 2016-01-07 | 2016-03-23 | 江苏全昌航空动力有限公司 | Double-shifting-fork execution mechanism for electronic speed regulation of single-cylinder diesel |
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