CN101956610B - Electronic speed governor actuating mechanism - Google Patents
Electronic speed governor actuating mechanism Download PDFInfo
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- CN101956610B CN101956610B CN 201010523372 CN201010523372A CN101956610B CN 101956610 B CN101956610 B CN 101956610B CN 201010523372 CN201010523372 CN 201010523372 CN 201010523372 A CN201010523372 A CN 201010523372A CN 101956610 B CN101956610 B CN 101956610B
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- sliding bar
- slide pad
- nut
- bar
- 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 electronic speed regulator field, particularly a kind of actuating mechanism for electron speed regulator.
Background technique
Speed regulator is the control centre of motor, can change the fuel delivery per cycle of automatically regulating motor according to engine loading, keeps the stabilization of speed of motor, thereby guarantees that motor has good service behaviour.What use on mini engine is centrifugal mechanical governor, and centrifugal mechanical governor is as first generation speed regulator, its complicated structure, and adjusting speed accuracy is relatively poor, can not need by satisfying the market.In recent years, development due to computer technology, the Digital electronic speed control device is adopted in the speed governing of diesel engine more, but the development at home of Digital electronic speed control device is slower, and especially the Digital electronic speed control machine field for the exploitation of light duty diesel engine or diesel power generation unit still belongs to blank.
Owing to being subjected to the restrictions such as diesel engine cost, accessory arrangement space, at present, mostly adopt centrifugal mechanical governor for 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 a kind of actuating mechanism for electron speed regulator that can realize the transmission self-locking, can realize again emergency shutdown.
for achieving the above object, the present invention adopts following technological scheme: actuating mechanism for electron speed regulator, comprise fixing frame, stepper motor and lead screw gear are installed on fixing frame, lead screw gear comprises the leading screw that is connected with the output revolving shaft coaxial transmission of stepper motor, engagement is equipped with nut on leading screw, be installed with on fixing frame with nut and only revolve the only spin-block that guiding coordinates, only spin-block and nut are along the leading screw axial sliding fit, be fixed with on nut along the axially extended sliding bar of leading screw, be provided with the slide pad that is used for driving the oil feed pump tooth bar along the axial translation of sliding bar on sliding bar, be provided with on sliding bar the unidirectional spacing limit structure of slide pad, be provided with the axially extended spring for slide pad being pushed up on the limit structure that is pressed in sliding bar along sliding bar between slide pad and sliding bar, one end of spring is connected on sliding bar, the other end is connected on slide pad, be provided with emergency stop device on fixing frame, this emergency stop device comprises shuts down electromagnet and overcomes with being used for 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.
On described sliding bar, an end corresponding with slide pad is provided with for the mounting hole that is axially extended internally by the sliding bar end face along sliding bar that is slidably matched with the slide pad gap, and spring is assemblied in mounting hole.
Be provided with on described slide pad for the perforation of oil feed pump tooth bar Spielpassung, offer with the opposite position of perforation the chute that is slidably matched with oil feed pump tooth bar glade plane space that extends axially and run through hole wall along sliding bar on the hole wall of mounting hole.
Described spring is extension spring, extension spring be connected in an end on sliding bar than being connected in an end on slide pad near nut, being used on sliding bar is the positive stop end of the close nut of chute to the unidirectional spacing limit structure of slide pad.
Be provided with guide pad on described fixing frame, be provided with on guide pad along the axially extended pilot hole for being slidably matched with sliding bar of sliding bar.
The outer circumferential face of one of them in described only spin-block and 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 coordinates.
Described urgency is stopped driving mechanism and is comprised by extending axially along sliding bar by the straight lever of shutting down solenoid actuated; straight lever is in transmission connection by synchronous transmission device and the parallel catch bar that arranges; moving to minimum throttle position for driving slide pad and oil feed pump tooth bar when shutting down work of electromagnet away from an end of shutting down electromagnet of catch bar is provided with on described shutdown electromagnet and offers the sliding-groove that is slidably matched with catch bar on fixing frame.
Lead screw gear is set on fixing frame in actuating mechanism for electron speed regulator of the present invention, coordinate by leading screw and nut the straight line motion that rotatablely moving of stepper motor is transformed into sliding bar, thereby guarantee that slide pad fixing on sliding bar can drive the action of oil feed pump tooth bar, the speed governing to motor is completed in the adjustment of realization to fuel delivery.Be provided with the only spin-block for the restriction nut rotation in the present invention on fixing frame, effectively guaranteed the straight line motion of nut.By the unidirectional limit structure on spring and sliding bar, slide pad synchronously is fixed on sliding bar to realize the interlock of sliding bar and slide pad.Adopted the self-locking device of lead screw transmission in 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 stop anxious that under the driving mechanism effect, oil feed pump tooth bar and slide pad all move to minimum throttle position, 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 realize 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 Economy and the adaptability of product.Owing to not changing original diesel engine structure, both guaranteed actuating mechanism for electron speed regulator installation, the convenience of using and debugging, saved again development cost.
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, actuating mechanism for electron speed regulator, comprise the fixing frame 4 that is fixed by screws on gearbox cover for diesel engine, 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, on leading screw 3, engagement is equipped with nut 5, be provided with the only spin-block 6 that rotates for restriction nut 5 on fixing frame 4, only spin-block 6 and nut 5 are along the leading screw axial sliding fit, be fixed with along the axially extended sliding bar 8 of leading screw by pin on nut 5, be provided with guide pad on fixing frame 4, be provided with on guide pad along the axially extended pilot hole 13 of sliding bar, sliding bar 8 coordinates 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, be provided with perforation on slide pad 9, 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.
Be provided for limiting the only spin-block 6 of nut rotation in above-described embodiment in a side of nut 5 on fixing frame 4, arrange along the axially extended protruding key of leading screw on one of them outer circumferential face in only 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 coordinates.During concrete enforcement, protruding key both can be arranged on nut, also can be arranged on to stop on spin-block, and keyway is arranged on corresponding only spin-block or on nut.The whole extended length of protruding key can be designed to equate with the sliding stroke of nut, also the extended length of keyway can be designed to form with the slip of nut and equate.During concrete enforcement, also can adopt other only to revolve structure, be slidably matched as realizing stopping only revolving between spin-block and nut by engaging tooth or spline structure.
an end corresponding with slide pad 9 on sliding bar 8 is provided with mounting hole, what slide pad 9 gaps were slidably matched is arranged in mounting hole, be provided with along sliding bar axially extended for the fixing spring 10 of slide pad between sliding bar and slide pad, one end of spring 10 is connected on sliding bar by pin 12, the other end is connected on slide pad 9, in the present embodiment, spring 10 be connected in an end on 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, offer on the hole wall of mounting hole along sliding bar and extend axially the chute 14 that runs through hole wall, chute in the present embodiment is arranged symmetrically with about the sliding bar central axis, be provided with on sliding bar be used to overcoming 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 for overcoming 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 slide pad 9 and the interlock of oil feed pump tooth bar 11, thereby pass through the straight line motion of sliding bar 8 to realize the adjusting to the fuel delivery size.
The present embodiment medi-spring 10 is fixed on slide pad on sliding bar with the form of extension spring, also make spring with the form of stage clip, slide pad is fixed on sliding bar during concrete enforcement, at the bottom of this moment, the limit structure on 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 pressed in slide pad top the axially locating of completing at the bottom of the hole of mounting hole slide pad, and slide pad and sliding bar are linked.
as Fig. 2, shown in Figure 3, also be provided with on fixing frame 4 for the emergency stop device that drives slide pad 9 actions, emergency stop device uses when being mainly used in shutting down under without instruction or failure condition, this emergency stop device comprises the shutdown electromagnet 1 that is arranged on fixing frame 4 and stops driving mechanism with the urgency that slide pad 9 is in transmission connection, suddenly stopping driving mechanism comprises straight lever 4 and catch bar 7, shut down and be provided with on electromagnet 1 along the axially extended straight lever 4 by shutting down solenoid actuated of sliding bar, straight lever 4 is in transmission connection by synchronous transmission device and catch bar 7, in the guiding groove that is slidably 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 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 place's motion of minimum throttle under shutdown electromagnet thrust, until impact block 20 drives oil feed pump tooth bar 11 and slide pad 9 moves to minimum throttle position.
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 by impact block the position of minimum throttle.
To guarantee during design when catch bar is in the closest approach of working stroke middle distance shutdown electromagnet; catch bar does not affect 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 completed 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 lever and catch bar is the diplopore latch closure of two bars of being in transmission connection, and two holes on latch closure are fixedly set in respectively on one of them bar, by pin, latch closure are fixedly connected with two bars, complete the Synchronous Transmission of two bars.
Impact block 20 and oil feed pump tooth bar Integral design in the present embodiment when specifically implementing, also can be Integral 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 pull the impact block motion, completes 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 and make slide pad 9 away from the positive stop end of chute until make oil feed pump tooth bar and slide pad move to the throttle minimum position, realize emergency shutdown.
Actuating mechanism for electron speed regulator of the present invention 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 that are fixedly connected with nut 5, the slide pad 9 with the interlock of oil feed pump tooth bar that the end of sliding bar 8 arranges moves along with the action of sliding bar, thereby realize the adjusting to the oil feed pump fuel delivery, guarantee effectively to realize the speed-regulating instruction of electronic speed regulator.Without instruction or fault state the time, to shut down under the thrust of electromagnet 1, catch bar 7 promotes by impact block the active force that oil feed pump tooth bar 11 overcomes 10 pairs of oil feed pump tooth bars 11 of spring makes the oil feed pump tooth bar move to minimum throttle position, realizes emergency shutdown.
Claims (7)
1. actuating mechanism for electron speed regulator, it is characterized in that: comprise fixing frame, stepper motor and lead screw gear are installed on fixing frame, lead screw gear comprises the leading screw that is connected with the output revolving shaft coaxial transmission of stepper motor, engagement is equipped with nut on leading screw, be installed with on fixing frame with nut and only revolve the only spin-block that guiding coordinates, only spin-block and nut are along the leading screw axial sliding fit, be fixed with on nut along the axially extended sliding bar of leading screw, be provided with the slide pad that is used for driving the oil feed pump tooth bar along the axial translation of sliding bar on sliding bar, be provided with on sliding bar the unidirectional spacing limit structure of slide pad, be provided with the axially extended spring for slide pad being pushed up on the limit structure that is pressed in sliding bar along sliding bar between slide pad and sliding bar, one end of spring is connected on sliding bar, the other end is connected on slide pad, be provided with emergency stop device on fixing frame, this emergency stop device comprises shuts down electromagnet and overcomes with being used for 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 and the oil feed pump tooth bar stops driving mechanism to the urgency that minimum throttle position moves.
2. actuating mechanism for electron speed regulator according to claim 1, it is characterized in that: on described sliding bar, an end corresponding with slide pad is provided with for the mounting hole that is axially extended internally by the sliding bar end face along sliding bar that is slidably matched with the slide pad gap, and spring is assemblied in mounting hole.
3. actuating mechanism for electron speed regulator according to claim 2, it is characterized in that: be provided with on described slide pad for the perforation of oil feed pump tooth bar Spielpassung, offer with the opposite position of perforation the chute that is slidably matched with oil feed pump tooth bar glade plane space that extends axially and run through hole wall along sliding bar on the hole wall of mounting hole.
4. actuating mechanism for electron speed regulator according to claim 3, it is characterized in that: described spring is extension spring, extension spring be connected in an end on sliding bar than being connected in an end on slide pad near nut, being used on sliding bar is the positive stop end of the close nut of chute to the unidirectional spacing limit structure of slide pad.
5. the described actuating mechanism for electron speed regulator of any one according to claim 1 to 4 is characterized in that: be provided with guide pad on described fixing frame, be provided with on guide pad along the axially extended pilot hole for being slidably matched with sliding bar of sliding bar.
6. the described actuating mechanism for electron speed regulator of any one according to claim 1 to 4, it is characterized in that: the outer circumferential face of one of them in described only spin-block and 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 coordinates.
7. the described actuating mechanism for electron speed regulator of any one according to 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 lever of shutting down solenoid actuated; straight lever is in transmission connection by synchronous transmission device and the parallel catch bar that arranges; moving to minimum throttle position for driving slide pad and oil feed pump tooth bar when shutting down work of electromagnet away from an end of shutting down electromagnet of catch bar is provided with on described shutdown electromagnet and offers the sliding-groove that is slidably 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 CN101956610A (en) | 2011-01-26 |
| CN101956610B true CN101956610B (en) | 2013-06-05 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN101956610B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
-
2010
- 2010-10-28 CN CN 201010523372 patent/CN101956610B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-10155A 1993.01.19 |
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| Publication number | Publication date |
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| CN101956610A (en) | 2011-01-26 |
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Granted publication date: 20130605 Termination date: 20141028 |
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