CN101956610A - Electronic speed governor actuating mechanism - Google Patents
Electronic speed governor actuating mechanism Download PDFInfo
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- CN101956610A CN101956610A CN2010105233724A CN201010523372A CN101956610A CN 101956610 A CN101956610 A CN 101956610A CN 2010105233724 A CN2010105233724 A CN 2010105233724A CN 201010523372 A CN201010523372 A CN 201010523372A CN 101956610 A CN101956610 A CN 101956610A
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- sliding bar
- bar
- slide pad
- nut
- feed pump
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Abstract
The invention discloses an electronic speed governor actuating mechanism which comprises a fixed mount, and a stepping motor and a lead screw transmission device are installed on the fixed mount. A nut stop block matched with the stopping and the guiding of a nut is fixedly arranged on the fixed mount, and the nut stop block and the nut are matched in a sliding manner along the axial direction of a lead screw. A sliding bar stretching along the axial direction of the lead screw is fixedly connected to the nut, a floating block transversely moving along the axial direction of the sliding bar and used for driving a fuel feed pump rack is arranged on the sliding bar, a limiting structure for unidirectionally limiting the floating block is arranged on the sliding bar, and a spring stretching along the axial direction of the sliding bar and used for pressing the floating block against the limiting structure of the sliding bar is arranged between the floating block and the sliding bar. An emergency shutdown device is arranged on the fixed mount and comprises a shutdown electromagnet and an emergency shutdown transmission mechanism, wherein the emergency shutdown transmission mechanism is connected with the shutdown electromagnet and is used for overcoming the action force of the spring on the floating block and the fuel feed pump rack so as to drive the floating block and the fuel feed pump rack to move toward the minimum throttle position.
Description
Technical field
The invention belongs to motor and use the electronic speed regulator field, particularly a kind of electronic speed regulator actuator.
Background technique
Speed regulator is the control centre of motor, can change the fuel delivery per cycle of regulating motor automatically according to engine loading, keeps the stabilization of speed of motor, thereby guarantees that motor has good working performance.What use on the mini engine is centrifugal mechanical governor, and centrifugal mechanical governor is as first generation speed regulator, its structure more complicated, and adjusting speed accuracy is relatively poor, can not satisfy market demand.In recent years, because development of computer, the digital electronic speed regulator is adopted in the speed governing of diesel engine more, but the development at home of digital electronic speed regulator is slower, and especially the digital electronic governor field at light duty diesel engine or the exploitation of diesel power generation unit still belongs to blank.
Owing to be subjected to restrictions such as diesel engine cost, accessory arrangement space, at present, adopt centrifugal mechanical governor mostly at the speed regulator of light duty diesel engine or diesel power generation unit.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can realize the transmission self-locking, can realize the electronic speed regulator actuator of emergency shutdown again.
For achieving the above object, the present invention adopts following technological scheme: electronic speed regulator actuator, comprise fixing frame, stepper motor and lead screw gear are installed on the fixing frame, lead screw gear comprises and the coaxial leading screw that is in transmission connection of the output revolving shaft of stepper motor, engagement is equipped with nut on leading screw, be installed with on the fixing frame with nut and only revolve the only spin-block that guiding cooperates, end spin-block and nut along the leading screw axial sliding fit, be fixed with on the nut along the axially extended sliding bar of leading screw, sliding bar is provided with the slide pad that is used to drive the oil feed pump tooth bar along the axial translation of sliding bar, on sliding bar, be provided with the unidirectional spacing limit structure of slide pad, be provided with axially extended being used between slide pad and the sliding bar with the spring on the limit structure of slide pad roof pressure at sliding bar along sliding bar, one end of spring is connected on the sliding bar, and the other end is connected on the slide pad; Be provided with emergency stop device on fixing frame, this emergency stop device comprises shuts down electromagnet and overcomes with being used to of shutting down that electromagnet is in transmission connection that spring drives slide pad to the active force of slide pad and oil feed pump tooth bar or the oil feed pump tooth bar stops driving mechanism to the urgency that minimum throttle position moves.
Be provided with the corresponding end of slide pad on the described sliding bar and be used for the mounting hole that is axially extended internally by the sliding bar end face along sliding bar that is slidingly matched with the slide pad gap, spring is assemblied in the mounting hole.
Described slide pad is provided with the perforation that is used for oil feed pump tooth bar Spielpassung, offers the chute that is slidingly matched with oil feed pump tooth bar glade plane space that extends axially and run through hole wall along sliding bar with the opposite position of perforation on the hole wall of mounting hole.
Described spring is extension spring, extension spring be connected in a end on the sliding bar than being connected in a end on the slide pad near nut, being used for the unidirectional spacing limit structure of slide pad on the sliding bar is the positive stop end of the close nut of chute.
Described fixing frame is provided with guide pad, and guide pad is provided with along the axially extended pilot hole that is slidingly matched with sliding bar of being used for of sliding bar.
The outer circumferential face of one of them in described only spin-block and the nut is provided with along the axially extended protruding key of leading screw, is provided with protruding key at another outer circumferential face opposite position place and only revolves the keyway that glade plane space cooperates.
Described urgency is stopped driving mechanism and is comprised by extending axially along sliding bar by the straight moving bar of shutting down solenoid actuated; straight moving bar is in transmission connection by synchronous transmission device and the parallel catch bar that is provided with; end away from shutting down electromagnet of catch bar is used for driving slide pad when shutting down work of electromagnet and the oil feed pump tooth bar moves to minimum throttle position, and described shutdown electromagnet is provided with and offers the sliding-groove that is slidingly matched with catch bar on fixing frame.
In the electronic speed regulator of the present invention actuator lead screw gear is set on fixing frame, cooperate the straight line motion that rotatablely moving of stepper motor is transformed into sliding bar by leading screw and nut, thereby guarantee that slide pad fixing on sliding bar can drive the action of oil feed pump tooth bar, realization is finished the speed governing to motor to the adjustment of fuel delivery.Fixing frame is provided with and is used to limit the only spin-block that nut rotates among the present invention, has effectively guaranteed the straight line motion of nut.By the unidirectional limit structure on spring and the sliding bar slide pad is fixed on the sliding bar synchronously to realize the interlock of sliding bar and slide pad.Adopted the self-locking device of lead screw transmission among the present invention; when the needs emergency shutdown; stop driving mechanism by the shutdown electromagnet to urgency power is provided; suddenly stop driving mechanism and overcome that spring drives the oil feed pump tooth bar by slide pad to the active force of oil feed pump tooth bar and relative movement appears in sliding bar; until stopping anxious that oil feed pump tooth bar and slide pad all move to minimum throttle position under the driving mechanism effect, realize emergency shutdown.When emergency stop device was worked, no matter which kind of working state leading screw self-locking driving mechanism is in, which kind of working position sliding bar and slide pad were in, and all can overcome the self-locking of lead screw transmission and realized emergency shutdown.The present invention is simple in structure, stable drive, and actuator's stable and reliable operation can effectively guarantee the accurate speed governing to speed regulator.The present invention need not change original diesel engine structure, utilizes the mounting point of the speed-regulating handle of original centrifugal mechanical governor, realizes the installation of actuator, thereby improves the Economy and the adaptability of product.Owing to do not change original diesel engine structure, both guaranteed the convenience that electronic speed regulator actuator installs, uses and debug, saved development cost again.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the side view of Fig. 2.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, electronic speed regulator actuator, comprise by the fixing frame 4 of screw on the diesel engine gear box cover, stepper motor 2 and leading screw actuator are installed on fixing frame 4, leading screw actuator comprises the leading screw 3 that the output revolving shaft by pin and stepper motor 2 is in transmission connection, engagement is equipped with nut 5 on the leading screw 3, fixing frame 4 is provided with and is used to limit the only spin-block 6 that nut 5 rotates, end spin-block 6 and nut 5 along the leading screw axial sliding fit, on nut 5, be fixed with along the axially extended sliding bar 8 of leading screw by pin, fixing frame 4 is provided with guide pad, guide pad is provided with along the axially extended pilot hole 13 of sliding bar, sliding bar 8 cooperates with pilot hole 13 glade plane spaces, be in transmission connection at the end of sliding bar 8 and be useful on the slide pad 9 that drives oil feed pump tooth bar 11, slide pad 9 is provided with perforation, and oil feed pump tooth bar 11 is by realizing interlock with slide pad 9 with the perforation Spielpassung.
Guide pad and fixing frame in the present embodiment are wholely set, also can the split setting when specifically implementing.
On fixing frame 4, be provided for limiting the only spin-block 6 of nut rotation in the foregoing description in a side of nut 5, be provided with along the axially extended protruding key of leading screw on one of them outer circumferential face in ending spin-block 6 and nut 5, the opposite position place on another outer circumferential face is provided with protruding key only revolves the keyway that glade plane space cooperates.During concrete enforcement, protruding key both can be arranged on the nut, also can be arranged on to end on the spin-block, and keyway is arranged on corresponding ending on the spin-block or on the nut.The whole extended length of protruding key can be designed to equate, also the extended length of keyway can be designed to form and equate with the slip of nut with the sliding stroke of nut.During concrete enforcement, also can adopt other only to revolve structure, be slidingly matched as realizing ending only revolving between spin-block and the nut by engaging tooth or spline structure.
On sliding bar 8, be provided with mounting hole with slide pad 9 corresponding ends, what slide pad 9 gaps were slidingly matched is arranged in the mounting hole, between sliding bar and slide pad, be provided with along the axially extended spring 10 that is used for fixing slide pad of sliding bar, one end of spring 10 is connected on the sliding bar by pin 12, the other end is connected on the slide pad 9, in the present embodiment, spring 10 be connected in a end on the sliding bar 8 than the close nut 5 of an end that is connected in slide pad 9, this moment, slide pad 9 was pulled to nut 5 by spring 10, on the hole wall of mounting hole, offer along sliding bar and extend axially the chute 14 that runs through hole wall, chute in the present embodiment is about sliding bar central axis symmetric arrangement, sliding bar is provided with and is used to overcome spring to the active force of slide pad and to the unidirectional spacing limit structure of slide pad, limit structure in the present embodiment be the end that is arranged on chute 14 be used to overcome spring to the active force of slide pad to the unidirectional spacing positive stop end of slide pad, in the present embodiment, under the effect of spring 10, slide pad 9 is fixed on the positive stop end place of chute 14 and keeps synchronous interaction with sliding bar 8, and then by the perforation realization on the slide pad 9 and the interlock of oil feed pump tooth bar 11, thereby the straight line motion by sliding bar 8 is with the adjusting of realization to the fuel delivery size.
Present embodiment medi-spring 10 is fixed on slide pad on the sliding bar with the form of extension spring, also make spring slide pad is fixed on the sliding bar during concrete enforcement with the form of stage clip, at the bottom of this moment, the limit structure on the sliding bar was the hole of mounting hole, be distributed in the both sides of slide pad at the bottom of the hole of stage clip and mounting hole, thereby stage clip is finished axially locating to slide pad with the slide pad roof pressure at the bottom of the hole of mounting hole, makes the interlock of slide pad and sliding bar.
As Fig. 2; shown in Figure 3; on fixing frame 4, also be provided with the emergency stop device that is used to drive slide pad 9 actions; emergency stop device is mainly used in when shutting down under not having instruction or failure condition and uses; this emergency stop device comprises the shutdown electromagnet 1 that is arranged on the fixing frame 4 and stops driving mechanism with the urgency that slide pad 9 is in transmission connection; suddenly stop driving mechanism and comprise straight moving bar 4 and catch bar 7; shutting down electromagnet 1 is provided with along sliding bar axially extended by the straight moving bar 4 of shutting down solenoid actuated; straight moving bar 4 is in transmission connection by synchronous transmission device and catch bar 7; in the guiding groove that is slidingly matched with catch bar that catch bar 7 is arranged on that fixing frame is provided with; during use; be integrally formed with impact block 20 on the oil feed pump tooth bar 11; catch bar 7 is over against impact block 20; when shutting down electromagnet 1 work; catch bar 7 promotes impact block 20 to the motion of minimum throttle place under shutdown electromagnet thrust, move to minimum throttle position until impact block 20 drive oil feed pump tooth bars 11 and slide pad 9.
In the specific implementation; when shutdown electromagnet 1 is not worked; catch bar 4 does not contact with impact block 20 or contact but catch bar 4 does not push impact block 20; but catch bar 7 is all the time over against impact block 20; like this in case shut down work of electromagnet; no matter slide pad 9 and oil feed pump tooth bar 11 are positioned at that position, and catch bar 7 can be pushed into slide pad and oil feed pump tooth bar the position of minimum throttle by impact block.
To guarantee during design when catch bar is in the closest approach of working stroke middle distance shutdown electromagnet; catch bar does not influence the normal interlock of oil feed pump tooth bar and slide pad; when catch bar was in the working stroke middle distance and shuts down the solstics of electromagnet, catch bar just in time can be finished the task of slide pad and oil feed pump tooth bar being pushed into minimum throttle position.
Synchronous transmission device in the present embodiment between straight moving bar and the catch bar is the diplopore latch closure of two bars of being in transmission connection, and two holes on the latch closure are fixedly set in respectively on one of them bar, by pin latch closure are fixedlyed connected with two bars, finish the Synchronous Transmission of two bars.
Impact block 20 in the present embodiment and the design of oil feed pump tooth bar one when specifically implementing, also can be the one design with impact block and slide pad.To move to minimum throttle position by promoting slide pad drive oil feed pump tooth bar when catch bar pushes impact block like this, can realize emergency shutdown equally.
During concrete enforcement; suddenly stopping driving mechanism can also can be pull bar for catch bar; shut down the opposite side that electromagnet is arranged on oil feed pump this moment, and the hook by the tie rod end setting can spur the impact block motion, finishes slide pad and the oil feed pump rack drives task to minimum throttle position.
During emergency shutdown; provide thrust by shutting down electromagnet 1 to catch bar 7; catch bar 7 promotes impact block; thereby make oil feed pump tooth bar 11 overcome the active force of spring 10 by 9 pairs of oil feed pump tooth bars 11 of slide pad make slide pad 9 away from the positive stop end of chute until making oil feed pump tooth bar and slide pad move to the throttle minimum position, realize emergency shutdown.
Electronic speed regulator of the present invention actuator in use, driving leading screw 3 by stepper motor 2 rotates, this moment with the nut 5 of leading screw 3 engagement driving along lead screw shaft to doing straight line motion, drive sliding bar 8 straight line motions of fixedlying connected with nut 5, the slide pad 9 of that the end of sliding bar 8 is provided with and oil feed pump tooth bar interlock moves along with the action of sliding bar, thereby realize adjusting, guarantee effectively to realize the speed-regulating instruction of electronic speed regulator the oil feed pump fuel delivery.When not having instruction or fault state, under the thrust of shutting down electromagnet 1, catch bar 7 makes the oil feed pump tooth bar move to minimum throttle position by the active force that impact block promotion oil feed pump tooth bar 11 overcomes 10 pairs of oil feed pump tooth bars 11 of spring, realizes emergency shutdown.
Claims (7)
1. electronic speed regulator actuator, it is characterized in that: comprise fixing frame, stepper motor and lead screw gear are installed on the fixing frame, lead screw gear comprises and the coaxial leading screw that is in transmission connection of the output revolving shaft of stepper motor, engagement is equipped with nut on leading screw, be installed with on the fixing frame with nut and only revolve the only spin-block that guiding cooperates, end spin-block and nut along the leading screw axial sliding fit, be fixed with on the nut along the axially extended sliding bar of leading screw, sliding bar is provided with the slide pad that is used to drive the oil feed pump tooth bar along the axial translation of sliding bar, on sliding bar, be provided with the unidirectional spacing limit structure of slide pad, be provided with axially extended being used between slide pad and the sliding bar with the spring on the limit structure of slide pad roof pressure at sliding bar along sliding bar, one end of spring is connected on the sliding bar, and the other end is connected on the slide pad; Be provided with emergency stop device on fixing frame, this emergency stop device comprises shuts down electromagnet and overcomes with being used to of shutting down that electromagnet is in transmission connection that spring drives slide pad to the active force of slide pad and oil feed pump tooth bar or the oil feed pump tooth bar stops driving mechanism to the urgency that minimum throttle position moves.
2. electronic speed regulator according to claim 1 actuator, it is characterized in that: be provided with the corresponding end of slide pad on the described sliding bar and be used for the mounting hole that is axially extended internally by the sliding bar end face along sliding bar that is slidingly matched with the slide pad gap, spring is assemblied in the mounting hole.
3. electronic speed regulator according to claim 2 actuator, it is characterized in that: described slide pad is provided with the perforation that is used for oil feed pump tooth bar Spielpassung, offers the chute that is slidingly matched with oil feed pump tooth bar glade plane space that extends axially and run through hole wall along sliding bar with the opposite position of perforation on the hole wall of mounting hole.
4. electronic speed regulator according to claim 3 actuator, it is characterized in that: described spring is extension spring, extension spring be connected in a end on the sliding bar than being connected in a end on the slide pad near nut, being used for the unidirectional spacing limit structure of slide pad on the sliding bar is the positive stop end of the close nut of chute.
5. according to any described electronic speed regulator actuator in the claim 1 to 4, it is characterized in that: described fixing frame is provided with guide pad, and guide pad is provided with along the axially extended pilot hole that is slidingly matched with sliding bar of being used for of sliding bar.
6. according to any described electronic speed regulator actuator in the claim 1 to 4, it is characterized in that: the outer circumferential face of one of them in described only spin-block and the nut is provided with along the axially extended protruding key of leading screw, is provided with protruding key at another outer circumferential face opposite position place and only revolves the keyway that glade plane space cooperates.
7. according to any described electronic speed regulator actuator in the claim 1 to 4; it is characterized in that: described urgency is stopped driving mechanism and is comprised by extending axially along sliding bar by the straight moving bar of shutting down solenoid actuated; straight moving bar is in transmission connection by synchronous transmission device and the parallel catch bar that is provided with; end away from shutting down electromagnet of catch bar is used for driving slide pad when shutting down work of electromagnet and the oil feed pump tooth bar moves to minimum throttle position, and described shutdown electromagnet is provided with and offers the sliding-groove that is slidingly matched with catch bar on fixing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010523372 CN101956610B (en) | 2010-10-28 | 2010-10-28 | Electronic speed governor actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010523372 CN101956610B (en) | 2010-10-28 | 2010-10-28 | Electronic speed governor actuating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101956610A true CN101956610A (en) | 2011-01-26 |
| CN101956610B CN101956610B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010523372 Expired - Fee Related CN101956610B (en) | 2010-10-28 | 2010-10-28 | Electronic speed governor actuating mechanism |
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| Country | Link |
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| CN (1) | CN101956610B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925085A (en) * | 2014-04-01 | 2014-07-16 | 赵军 | Emergency shutdown device for air-cooled diesel engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510155A (en) * | 1991-06-28 | 1993-01-19 | Kubota Corp | Actuator operating type stopping device of diesel engine |
| CN201407104Y (en) * | 2009-05-05 | 2010-02-17 | 洛阳三至电子科技有限公司 | Electronic governor actuator |
| CN201521354U (en) * | 2009-10-28 | 2010-07-07 | 洛阳三至电子科技有限公司 | Direct-push actuating mechanism of electronic speed regulator |
| CN201865774U (en) * | 2010-10-28 | 2011-06-15 | 河南科技大学 | Actuating mechanism of digital electronic speed regulator |
-
2010
- 2010-10-28 CN CN 201010523372 patent/CN101956610B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510155A (en) * | 1991-06-28 | 1993-01-19 | Kubota Corp | Actuator operating type stopping device of diesel engine |
| CN201407104Y (en) * | 2009-05-05 | 2010-02-17 | 洛阳三至电子科技有限公司 | Electronic governor actuator |
| CN201521354U (en) * | 2009-10-28 | 2010-07-07 | 洛阳三至电子科技有限公司 | Direct-push actuating mechanism of electronic speed regulator |
| CN201865774U (en) * | 2010-10-28 | 2011-06-15 | 河南科技大学 | Actuating mechanism of digital electronic speed regulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925085A (en) * | 2014-04-01 | 2014-07-16 | 赵军 | Emergency shutdown device for air-cooled diesel engine |
| CN103925085B (en) * | 2014-04-01 | 2016-06-15 | 绍兴冠硕机械科技有限公司 | A kind of emergency stop (apparatus) of air-cooled diesel engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101956610B (en) | 2013-06-05 |
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