CN107740741A - A kind of numerical control diesel engine - Google Patents
A kind of numerical control diesel engine Download PDFInfo
- Publication number
- CN107740741A CN107740741A CN201710952175.6A CN201710952175A CN107740741A CN 107740741 A CN107740741 A CN 107740741A CN 201710952175 A CN201710952175 A CN 201710952175A CN 107740741 A CN107740741 A CN 107740741A
- Authority
- CN
- China
- Prior art keywords
- ratch
- elastic
- diesel engine
- fixture block
- elastic chuck
- Prior art date
- 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.)
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Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention belongs to electronic Control for Diesel Engine technical field, is related to a kind of numerical control diesel engine.The structure, including main part, elastic chuck, fixture block, elastic reset device, nut head, exhaust end base of oil injection threaded bolt, elastic reset device one end is supported in main part, the other end is pressed on elastic chuck, elastic chuck with ratch is connected by two pieces of fixture blocks, fixture block is connected with elastic chuck using triangle, and fixture block is connected with ratch using neck.Beneficial effects of the present invention：Precision height, convenient disassembly, to be not easy clamping stagnation, connected mode relatively reliable.
Description
Technical field
The invention belongs to electronic Control for Diesel Engine technical field, is related to a kind of numerical control diesel engine.
Background technology
Connection between diesel electric-controlled actuator and injection pump, connection species is more at present, and majority is connected using pin,
Also have has several respects using mode connects for screw, conventional coupling arrangement major defect：Easy clamping stagnation；During system fading margin, actuator
It is asynchronous with injection pump ratch, micro return difference be present, cause system fading margin precision to substantially reduce；Assembling process is complicated, to assembling,
Part processing request is higher.
The content of the invention
The purpose of the present invention and proposes a kind of numerical control diesel engine, reaches zero-clearance precisely in order to solve the deficiencies in the prior art
Flexibility has the connection of " self compensation " function.
The technical scheme is that a kind of numerical control diesel engine, including main part, elastic chuck, fixture block, elastic reset
Device, nut head, exhaust end base of oil injection threaded bolt, elastic reset device one end are supported in main part, and the other end is pressed on elastic chuck, bullet
Property chuck with ratch be connected by two pieces of fixture blocks, fixture block is connected with elastic chuck using triangle, and fixture block and ratch are using blocking
Groove connects.
Fixture block is formed by 2 pieces, and profile is that a round platform is cut into two pieces at center, and there is square protruding part inside.
Ratch is that cylindrical end circumferentially cuts a rectangle annular groove, and end face is disk.
Elastic chuck endoporus is that triangle is poroid, and there is flange end.
Beneficial effects of the present invention：This structure overcomes the easy clamping stagnation of conventional coupling arrangement well；System fading margin process
In, actuator and injection pump ratch are asynchronous, micro return difference be present, cause system fading margin precision to substantially reduce；Assembling process is answered
It is miscellaneous, to assembling, part processing request is higher the shortcomings of.And this connected mode is relatively reliable compared with conventional coupling arrangement.
Connection request is higher between diesel electric-controlled actuator and oil supply system injection pump moving component, fuel volume adjusting process with
Micron order high frequency is adjusted, therefore it is required that actuator and injection pump ratch motion stringent synchronization, must not have during long-term work
Any catching phenomenon, while to be readily disassembled.Control system return difference is optimized, realizes no return difference regulation.This structure is good
Meet requirements above.Convenient disassembly is mainly manifested in two aspects：On the one hand it is that this structure is readily disassembled, as long as by elastic card
Disk is promoted to spring-compressed direction, and two pieces of fixture blocks can be fallen down automatically, and elastic reset device, elastic chuck meeting automatic spring are completed to tear open
Solution.Opposite assembling is also very convenient.Another aspect actuator and ratch outer face contact for point, without other annexations, actuator
It is also easily removable, as long as four screws between actuator and main part are twisted off, actuator can be removed directly.Opposite dress
With also very convenient.The mounting hole of actuator and main part, main part mounting hole can reduce with ratch position relative position
To grade, when deviation occurs in position, do not influence at all to control.Conventional coupling arrangement can be in all flexible feelings of actuator ratch
Often occurs inflexible phenomenon after assembling under condition.And to ratch central hole location degree, actuator position degree requires higher.
Embodiment
Highly preferred embodiment of the present invention is described further below：
This structure includes main part 4, elastic chuck 5, fixture block 6, elastic reset device 8, the ball nut 9 on actuator 1, spray
The grade of ratch 7 composition on oil pump 3, the one end of elastic reset device 8 are supported in main part 4, and the other end is pressed in elastic chuck 5
On.The elastic endoporus of chuck 5 is that triangle is poroid, and there is flange end.Elastic chuck 5 with ratch 7 is connected by two pieces of fixture blocks 6, card
Block 6 is connected with elastic chuck 5 using triangle, and fixture block 6 is connected with ratch 7 using neck.Ratch 7 be cylindrical end circumferentially
A rectangle annular groove is cut, end face is disk.Fixture block 6 is formed by 2 pieces, and profile is that a round platform is cut into two pieces at center, inside
There is square protruding part.
Main part 4, which serves, to be connected, and the upper cover plate 2 of main part 4 plays observation window., will when this structure is installed
Elastic reset device 8 is inserted in ratch, promotes the elastic compression elasticity resetting means 8 of chuck 5, two pieces of fixture blocks 6 are stuck in ratch groove,
Elastic chuck 5 is discharged, elastic reset device 8 installs.Actuator is fixed in main part 4 with four screws, held
Row device installs.Centering is not required in whole installation process.
The connection diesel operation system of the present invention and the constructional device of oil pump, reach zero-clearance self compensation attachment structure.It is main
The connection being used between the ratch 7 on the diesel electric-controlled moving component of actuator 1 (pull bar 10) and injection pump 3.Actuator 1
For proportion electro-magnet, proportional unidirectional electromagnetic push, the movement parts pull bar 10 of actuator 1 are produced according to the size for being passed through electric current
Head is provided with ball nut 9, and the top of ball nut 9 is spherical.The one end of injection pump 3 is by elastic chuck 5, fixture block 6 by elastic force
Resetting means 8 is connected on ratch 7, and elastic reset device 8 is operated in compressive state, and caused spring force is by injection pump ratch 7
Shift oil-break position onto, when electromagnetic force caused by actuator is more than spring force of the elastic reset device 8 in the position, actuator meeting
Promote ratch 7 move to oiling direction, the transmission of actuator 1 and the ratch power of injection pump 3 by actuator ball nut 9 ball point with
The end contact of ratch 7 mutually pushes away.Connection between actuator 1 and injection pump rack 7 mutually pushes away mode using zero-clearance, and actuator 1 only produces
Raw unilateral thrust, the elastic reset device 8 that Passive part ratch 7 is connected by this structure also only produce unilateral thrust, actuator production
Raw electromagnetic push and elastic reset device power is all acted on ratch, in the opposite direction.
Ball nut 9 unidirectionally promotes under electromagnetic force caused by actuator 1, is sprayed under the effect of elastic reset device 8
Oil pump ratch 7 is unidirectional in opposite direction to be promoted, and ball nut 9 and the end face of injection pump ratch 7 contact for point under interaction force,
Remain gapless.Actuator ball nut 9 and the end face of injection pump ratch 7 are if abrasion, in spring force and electromagnetism masterpiece
It can automatically be eliminated under, gap will not be produced, there is " self compensation " function.
The contact point of the bulb summit of 1 ball nut of actuator 9 and the end face of injection pump ratch 7 can be in the nose circle face of ratch 7
It is any to choose, and at all do not influence to control.The way of contact on the axis direction of ratch 7 free degree it is unrestricted, reach
To the effect of " flexibility " connection.Therefore, will not clamping stagnation during position adjustments.
Electromagnetic force by adjusting actuator realizes the position adjustment of ratch 7.The structure is main to be realized in driving link
(actuator 1) is promoted in Passive part (injection pump rack 7) motion process without return difference；It will not cause to show because clamping stagnation occurs for assembling process
As；Assembling and dissembling process is extremely convenient.
Tradition connection includes main part 4, connecting pin 12, the connector 11 on actuator 1, the group such as ratch 7 on injection pump
Into.Conventional coupling arrangement requires that elastic reset device 8 is placed in actuator, and certain difficulty is caused to actuator design and use.
For actuator in no power, connector 11 is in retracted position, extended position is in after energization, therefore tradition connection is adjusted to push away
Drawing mode.When being adjusted before and after actuator drives ratch, the difference of the moving displacement of driving link actuator 1 and Passive part displacement is connection
, that is, adjusting return difference be present in twice of gap between pin 12 and connector 11.The annexation of conventional coupling arrangement：Connecting pin 12
TOE, it is connected to by nut on ratch 7.Main part 4 is fixed on injection pump 3 afterwards, ratch 7 is drawn in outer end,
Actuator connector 11 is released into actuator (due to there is built-in spring, promoting more difficult), connected from right flank by actuator
Hole insertion connecting pin 12 on first 11.Because the hole fit clearance on connecting pin 12 and connector 11 is smaller, assembling is extremely difficult,
But when gap is larger, assembling is relatively easy and main part, injection pump, actuator parts form and position tolerance suitably can be reduced but adjusted
Section return difference is larger, and regulation performance can seriously be deteriorated.
Claims (4)
- A kind of 1. numerical control diesel engine, it is characterised in that：Including main part (4), elastic chuck (5), fixture block (6), elastic reset Device (8), nut head (9), exhaust end base of oil injection threaded bolt (7), elastic reset device (8) one end are supported in main part (4), another side pressure On elastic chuck (5), elastic chuck (5) with ratch (7) is connected by two pieces of fixture blocks (6), fixture block (6) and elastic chuck (5) connected using triangle, fixture block (6) is connected with ratch using neck.
- A kind of 2. numerical control diesel engine according to claim 1, it is characterised in that：Described fixture block (6) is formed by 2 pieces, outside Shape is that a round platform is cut into two pieces at center, and there is square protruding part inside.
- A kind of 3. numerical control diesel engine according to claim 1, it is characterised in that：Described ratch (7) is that cylindrical end exists A rectangle annular groove is cut on circumference, end face is disk.
- A kind of 4. numerical control diesel engine according to claim 1, it is characterised in that：Described elastic chuck (5) endoporus is three There is flange corner apertures shape, end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952175.6A CN107740741A (en) | 2017-10-13 | 2017-10-13 | A kind of numerical control diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952175.6A CN107740741A (en) | 2017-10-13 | 2017-10-13 | A kind of numerical control diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107740741A true CN107740741A (en) | 2018-02-27 |
Family
ID=61237649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710952175.6A Withdrawn CN107740741A (en) | 2017-10-13 | 2017-10-13 | A kind of numerical control diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740741A (en) |
-
2017
- 2017-10-13 CN CN201710952175.6A patent/CN107740741A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180227 |
|
| WW01 | Invention patent application withdrawn after publication |