CN107514327A - A kind of constructional device for connecting diesel operation system and oil pump - Google Patents
A kind of constructional device for connecting diesel operation system and oil pump Download PDFInfo
- Publication number
- CN107514327A CN107514327A CN201710768105.5A CN201710768105A CN107514327A CN 107514327 A CN107514327 A CN 107514327A CN 201710768105 A CN201710768105 A CN 201710768105A CN 107514327 A CN107514327 A CN 107514327A
- Authority
- CN
- China
- Prior art keywords
- ratch
- actuator
- spring holder
- fixture block
- spring
- 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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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
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
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- 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 constructional device for connecting diesel operation system and oil pump.The structure, including the ball nut on intermediate, spring holder, fixture block, back-moving spring, actuator, the ratch on injection pump, back-moving spring one end is supported on intermediate, the other end is pressed on spring holder, spring holder with ratch is connected by two pieces of fixture blocks, fixture block is connected with spring holder using the conical surface, 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 knot for connecting diesel operation system and oil pump
Structure device.
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 precisely in order to solve the deficiencies in the prior art, and propose a kind of connection diesel operation system with
The constructional device of oil pump, reach the flexible connection with " self compensation " function of zero-clearance.
The technical scheme is that a kind of constructional device for connecting diesel operation system and oil pump, including intermediate,
Spring holder, fixture block, back-moving spring, the ball nut on actuator, the ratch on injection pump, back-moving spring one end are supported on centre
On body, the other end is pressed on spring holder, and spring holder with ratch is connected by two pieces of fixture blocks, and fixture block is connected with spring holder using the conical surface
Connect, fixture block is connected with ratch using neck.
Fixture block is formed by 2 pieces, and profile is that a round platform is cut into two pieces at center, and inside has rectangular ring raised.
Ratch is that cylindrical end circumferentially cuts a rectangle annular groove, and end face is disk.
Spring holder endoporus is bellmouth, 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 spring holder
Promoted to spring-compressed direction, two pieces of fixture blocks can be fallen down automatically, and back-moving spring, spring holder meeting automatic spring are completed to disassemble.Conversely
Assembling is also very convenient.Another aspect actuator and ratch outer face contact for point, and without other annexations, actuator is also easy to tear open
Unload, as long as four screws between actuator and intermediate are twisted off, actuator can be removed directly.Opposite assembling is also very square
Just.The mounting hole of actuator and intermediate, intermediate mounting hole can be reduced to grade with ratch position relative position, work as position
Put when there is deviation, do not influence at all to control.Conventional coupling arrangement often fills in the case of being lived in actuator ratch Turin
With rear inflexible phenomenon.And to ratch central hole location degree, actuator position degree requires higher.
Brief description of the drawings
Fig. 1, the structural representation for the present invention；
Fig. 2, it is prior art construction schematic diagram.
Embodiment
Highly preferred embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in figure 1, this structure includes the bulb spiral shell on intermediate 4, spring holder 5, fixture block 6, back-moving spring 8, actuator 1
The composition such as ratch 7 on mother 9, injection pump 3, the one end of back-moving spring 8 are supported on intermediate 4, and the other end is pressed in spring holder 5
On.The endoporus of spring holder 5 is bellmouth, and there is flange end.Spring holder 5 with ratch 7 is connected by two pieces of fixture blocks 6, fixture block 6 with
Spring holder 5 is connected using the conical surface, and fixture block 6 is connected with ratch 7 using neck.Ratch 7 is that cylindrical end circumferentially cuts a rectangle
Annular groove, end face are disk.As shown in Fig. 2 fixture block 6 is formed by 2 pieces, profile is that a round platform is cut into two pieces at center, interior
Portion has rectangular ring raised.
Intermediate 4, which serves, to be connected, and the upper cover plate 2 of intermediate 4 plays observation window.This structure install when such as Fig. 1, will
Back-moving spring 8 is inserted in ratch, the compression reseting spring 8 of push the spring disk 5, two pieces of fixture blocks 6 is stuck in ratch groove, release spring disk
5, back-moving spring 8 installs.Actuator is fixed on intermediate 4 with four screws, actuator installs.Whole
Centering is not required in 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 will reset bullet by spring holder 5, fixture block 6
Spring 8 is connected on ratch 7, and back-moving spring 8 is operated in compressive state, and caused spring force shifts injection pump ratch 7 onto oil-break position
Put, when electromagnetic force caused by actuator is more than spring force of the back-moving spring 8 in the position, actuator can promote ratch 7 to adding
Oily direction motion, the transmission of actuator 1 and the ratch power of injection pump 3 connect by the ball point of actuator ball nut 9 and the end face of ratch 7
Touch and mutually push away.Connection between actuator 1 and injection pump rack 7 mutually pushes away mode using zero-clearance, and actuator 1 only produces unilateral thrust,
The back-moving spring 8 that Passive part ratch 7 is connected by this structure also only produces unilateral thrust, and electromagnetic push caused by actuator is with answering
Position spring force is all acted on ratch, in the opposite direction.
Ball nut 9 unidirectionally promotes under electromagnetic force caused by actuator 1, the injection pump under the effect of back-moving spring 8
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, begin
Gapless is kept eventually.Actuator ball nut 9 and the end face of injection pump ratch 7 are if abrasion, in spring force and electromagnetic force
Under can eliminate automatically, 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 because clamping stagnation occurs for assembling process
Phenomenon；Assembling and dissembling process is extremely convenient.
Tradition connection includes intermediate 4, connecting pin 12, the connector 11 on actuator 1, the composition such as ratch 7 on injection pump.
Conventional coupling arrangement requires that back-moving spring 8 is placed in actuator, and certain difficulty is caused to actuator design and use.Actuator exists
During no power, connector 11 is in retracted position, extended position is in after energization, therefore tradition connection is adjusted to push-pull fashion.
When being adjusted before and after actuator drives ratch, the difference of the moving displacement of driving link actuator 1 and Passive part displacement for connecting pin 12 and
, that is, adjusting return difference be present in twice of gap between connector 11.The annexation of conventional coupling arrangement：One end band of connecting pin 12
Screw thread, it is connected to by nut on ratch 7.Intermediate 4 is fixed on injection pump 3 afterwards, as shown in Fig. 2 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 joint 11.Because the hole fit clearance on connecting pin 12 and connector 11 is smaller, assembling is extremely tired
Difficulty, but when gap is larger, assembling is relatively easy and intermediate, injection pump, actuator parts form and position tolerance can be reduced suitably but
Adjusting return difference is larger, and regulation performance can seriously be deteriorated.
Claims (4)
- A kind of 1. constructional device for connecting diesel operation system and oil pump, it is characterised in that：Including intermediate (4), spring holder (5), fixture block (6), back-moving spring (8), the ball nut (9) on actuator, the ratch (7) on injection pump, back-moving spring (8) One end is supported on intermediate (4), and the other end is pressed on spring holder (5), and spring holder (5) is by two pieces of cards with ratch (7) Block (6) is connected, and fixture block (6) is connected with spring holder (5) using the conical surface, and fixture block (6) is connected with ratch using neck.
- A kind of 2. constructional device for connecting diesel operation system and oil pump according to claim 1, it is characterised in that： Described fixture block (6) is formed by 2 pieces, and profile is that a round platform is cut into two pieces at center, and inside has rectangular ring raised.
- A kind of 3. constructional device for connecting diesel operation system and oil pump according to claim 1, it is characterised in that： Described ratch (7) is that cylindrical end circumferentially cuts a rectangle annular groove, and end face is disk.
- A kind of 4. constructional device for connecting diesel operation system and oil pump according to claim 1, it is characterised in that： Described spring holder (5) endoporus is bellmouth, and there is flange end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768105.5A CN107514327A (en) | 2017-08-31 | 2017-08-31 | A kind of constructional device for connecting diesel operation system and oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768105.5A CN107514327A (en) | 2017-08-31 | 2017-08-31 | A kind of constructional device for connecting diesel operation system and oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107514327A true CN107514327A (en) | 2017-12-26 |
Family
ID=60724902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710768105.5A Withdrawn CN107514327A (en) | 2017-08-31 | 2017-08-31 | A kind of constructional device for connecting diesel operation system and oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107514327A (en) |
-
2017
- 2017-08-31 CN CN201710768105.5A patent/CN107514327A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171226 |