CN102644533B - Executor and oil injection pump offset attachment structure - Google Patents
Executor and oil injection pump offset attachment structure Download PDFInfo
- Publication number
- CN102644533B CN102644533B CN201210145893.XA CN201210145893A CN102644533B CN 102644533 B CN102644533 B CN 102644533B CN 201210145893 A CN201210145893 A CN 201210145893A CN 102644533 B CN102644533 B CN 102644533B
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- China
- Prior art keywords
- injection pump
- executor
- ratch
- connection dish
- dish
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Links
- 238000002347 injection Methods 0.000 title claims abstract description 52
- 239000007924 injection Substances 0.000 title claims abstract description 52
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000005562 fading Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012207 thread-locking agent Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of executor and oil injection pump offset attachment structure, including intermediate (2), screw (4), pallet (5), connection dish (6), back-moving spring (7), nut (8), spring washer (9), plain washer (10), driving lever (11) on executor (1), push-pull bar (12), ratch (13) on injection pump (3), back-moving spring (7) one end is located on injection pump (3) ratch hole, the other end is pressed on connection dish (6), connection dish (6) is connected by two screws (4) with ratch (13), pallet (5) and back-moving spring (7) use location, pallet (5) outer, connection dish (6) uses with back-moving spring (7) and is connected dish (6) internal protrusion location, push-pull bar (12) head is external screw thread, thread root is provided with Step Shaft.The shortcomings such as instant invention overcomes the easy clamping stagnation of conventional coupling arrangement, during system fading margin, executor and injection pump ratch are asynchronous, cause system fading margin precision to be substantially reduced, and assembling process is complicated.
Description
Technical field
The invention belongs to electronic Control for Diesel Engine technical field, relate to a kind of executor and oil injection pump offset attachment structure.
Background technology
Connection between diesel electric-controlled executor and injection pump, connects at present kind more, most uses pins to connect, and also has employing screw to connect, and conventional coupling arrangement major defect has several respects: easily clamping stagnation；During system fading margin, executor and injection pump ratch are asynchronous, there is trace return difference, cause system fading margin precision to be substantially reduced；Assembling process is complicated, higher to assembling, part processing request.Although the shortcoming that the new-type executor of one before overcomes tradition connection very well with injection pump attachment structure (centering is connected), but axial space takies bigger, in the case of axially compact requirement is extra high, it is necessary to executor of the present invention solves with oil injection pump offset attachment structure.
Summary of the invention
The purpose of the present invention is precisely in order to solve the deficiencies in the prior art, and a kind of brand-new novel executor and oil injection pump offset attachment structure are proposed, during being used for solving system fading margin, executor and injection pump ratch are asynchronous, there is trace return difference, cause system fading margin precision to be substantially reduced；Assembling process is complicated, the problem of easy clamping stagnation.
nullThe technical scheme is that，A kind of executor and oil injection pump offset attachment structure，Including intermediate 2、Screw 4、Pallet 5、Connection dish 6、Back-moving spring 7、Nut 8、Spring washer 9、Plain washer 10、Driving lever 11 on executor 1、Push-pull bar 12、Ratch 13 on injection pump 3 forms，Back-moving spring 7 one end is located on injection pump 3 ratch hole，The other end is pressed on connection dish 6，Connection dish 6 is connected by two screws 4 with ratch 13，Pallet 5 and back-moving spring 7 use pallet 5 outer to position，Connection dish 6 uses with back-moving spring 7 and is connected dish 6 internal protrusion location，Push-pull bar 12 head is external screw thread，Thread root is provided with Step Shaft，Driving lever 11 major part center is provided with unthreaded hole，By nut 8、Spring washer 9、Plain washer 10 presses solidly at push-pull bar 12 step axle head，There is offset distance in push-pull bar 12 center of ratch 13 axis and executor 1，Intermediate 2 and injection pump 3 are outside in Shaft alignment state.Described connection dish 6 one end is disc, dish is provided with step cutting pattern, form spring base, connection dish 6 other end is shaft-like, bar portion mills out two rectangular faces, one right-angle surface is provided with two tapped through holes for being connected with ratch 13, and connection dish 6 disc centre is coaxial with the ratch hole on injection pump 3.The described double step cylinder that pallet 5 is hollow, is respectively arranged at two ends with internal and external stopper, and one end is for positioning with injection pump 3 ratch hole, and one end is provided with the spring base into position reset spring 7.Being rigidly connected by two screws 4 between ratch 13 on described connection dish 6 and injection pump 3, the connection between driving lever 11 and connection dish 6 on executor 1 is that biasing zero-clearance pushes away mode mutually, and connection dish 6 center is parallel with push-pull bar 12 axis.
Beneficial effects of the present invention: this structure overcomes the easy clamping stagnation of conventional coupling arrangement well；During system fading margin, executor and injection pump ratch are asynchronous, there is trace return difference, cause system fading margin precision to be substantially reduced；Assembling process is complicated, to shortcomings such as assembling, part processing request are higher.And this connected mode is relatively reliable compared with conventional coupling arrangement.It addition, injection pump ratch inherent structure characteristic determines that ratch center and injection pump center certainly exist offset distance, with executor compared with injection pump attachment structure, the biasing that intermediate is connected with injection pump produces in coupling part, thus ensures outside centering.The sizable part of this attachment structure is overlapping simultaneously, is greatly reduced axial dimension, axially connects extremely compact, less to axial dimension installing space type, achieves good effect.
Between diesel electric-controlled executor and oil supply system injection pump moving component, connection request is higher, fuel volume adjusting process regulates with micron order high frequency, therefore it is required that executor and injection pump ratch motion stringent synchronization, must not there is any catching phenomenon during long-term work, to be readily disassembled simultaneously.Optimize control system return difference, it is achieved that regulate without return difference.This structure well meets requirements above.Convenient disassembly is mainly manifested in two aspects: be on the one hand that this structure is readily disassembled, as long as being pulled down by two screws on ratch and connection dish, back-moving spring, connection dish can complete to disassemble by automatic spring.Contrary assembling is the most more convenient.On the other hand executor's driving lever major part side is that face contacts with connection dish end face side, and without other annexations, executor is also easily removable, as long as being twisted off by four screws between executor and intermediate, executor just can directly take off.Contrary assembling is the most very convenient.Executor and the installing hole of intermediate, intermediate installing hole can be reduced to grade with ratch position relative to position, when deviation occurs in position, does not the most affect control.Conventional coupling arrangement can often occur inflexible phenomenon after assembling in the case of living in executor's ratch Turin, and to ratch central hole location degree, actuator position degree requires higher.
Accompanying drawing explanation
The present invention has 3 width accompanying drawing, wherein Fig. 1 highly preferred embodiment of the present invention, also can explain the accompanying drawing of book extract.
Fig. 1 is the structural representation of the present invention,
Fig. 2 is connection dish structural representation,
Fig. 3 is prior art construction schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings highly preferred embodiment of the present invention is described further:
As shown in Figure 1, this structure includes the compositions such as the ratch 13 on the driving lever 11 on intermediate 2, screw 4, pallet 5, connection dish 6, back-moving spring 7, nut 8, spring washer 9, plain washer 10, executor 1, push-pull bar 12, injection pump 3, back-moving spring 7 one end supports on upper injection pump 3 ratch hole, and the other end is pressed on connection dish 6.Connection dish 6 is to be connected by two screws 4 with ratch 13, and pallet 5 and back-moving spring 7 use pallet 5 outer to position, and connection dish 6 uses with back-moving spring 7 and is connected dish 6 internal protrusion location.Push-pull bar 12 head is external screw thread, and thread root has Step Shaft, driving lever 11 major part center to have unthreaded hole, is pressed solidly at push-pull bar 12 step axle head by nut 8, spring washer 9, plain washer 10.
Intermediate 2 connects fixation.Such as Fig. 1 when this structure is installed, pallet 5 is snapped in injection pump 3 ratch hole by little convex edge, back-moving spring 7 is inserted in ratch 13, and seat is in pallet 5 spring base, connection dish 6 is topped bar by dish and is inserted on back-moving spring 7, moves ratch to outermost end, it is screwed in pallet 5 screwed hole by unthreaded hole on ratch 13 with two screws 4, in order to locking, screwed hole be coated with happy safe thread locking agent 242, then intermediate 2 be fixed by screws on injection pump 3.Executor 1 being fixed on intermediate 2 with four screws, executor installs.It is not required to centering in whole installation process.
The diesel electric-controlled executor of the present invention and the connection of injection pump, reach zero-clearance self compensation biasing attachment structure.The connection being mainly used between the ratch 13 on diesel electric-controlled executor 1 moving component (push-pull bar 12) and injection pump 3.Executor 1 is proportion electro-magnet, and the size according to being passed through electric current produces proportional unidirectional electromagnetic push, and executor 1 movement parts push-pull bar 12 head is provided with driving lever 11, and driving lever is an attachment structure part, plays push-pull bar 11 and displacement transducer linkage effect simultaneously；Back-moving spring 7 is connected on ratch 13 by injection pump 3 one end by pallet 5, connection dish 6, back-moving spring 7 is operated in compressive state, the spring force produced shifts injection pump ratch 13 onto oil-break position, when the electromagnetic force that executor produces is more than the back-moving spring 7 spring force in this position, executor can promote ratch 13 to push away mutually by side and the connection dish 6 end face biasing contact of driving lever 11 on executor 1 to the transmission of the motion of oiling direction, executor 1 and injection pump 3 ratch power.The zero-clearance that is connected by between executor 1 and injection pump rack 13 pushes away mode mutually, the abrasion of contact surface has automatic compensation function, executor 1 only produces unilateral thrust, the back-moving spring 7 that Passive part ratch 13 is connected by this structure the most only produces unilateral thrust, the electromagnetic push that executor produces and return spring force all act on ratch, in opposite direction.The position being realized ratch by the electromagnetic force adjusting executor is accurately adjusted.This structure is main can be realized in driving link (executor 1) promotes Passive part (injection pump ratch 13) motor process without return difference；Do not result in because of assembling process generation catching phenomenon；Assembling and dissembling process extremely convenient.
As in figure 2 it is shown, connection dish 6 one end is disc, dish having step cutting pattern, form spring base, stepped diameters is more smaller than back-moving spring 7 internal diameter, for radially position reset spring 7.Connection dish 6 other end is shaft-like, and bar portion mills out two rectangular faces, and a right-angle surface has two tapped through holes, and for being connected with ratch 13, after connection, connection dish 6 disc centre is coaxial with the ratch hole on injection pump 3.
As it is shown on figure 3, tradition connects compositions such as including on union joint 14 on intermediate 2, connecting pin 15, executor 1, injection pump ratch 13.Conventional coupling arrangement requires that back-moving spring 7 is placed in executor, and executor's design and use are caused certain difficulty.Executor is when no power, and union joint 14 is in retracted position, is in extended position after energising, and therefore tradition connection is adjusted to push-pull fashion.When regulation before and after executor drives ratch, the difference of driving link executor 1 moving displacement and Passive part displacement is the twice in the gap between connecting pin 15 and union joint 14, i.e. there is adjusting return difference.The annexation of conventional coupling arrangement: connecting pin 15 TOE, is connected on ratch 13 by nut.Afterwards intermediate 2 is fixed on injection pump 3, as it is shown on figure 3, ratch 13 draws in outer end, executor's union joint 14 is released executor's (owing to there being built-in spring, promote more difficulty), from right flank, connecting pin 15 is inserted in the hole executor's union joint 14.Owing to the hole fit clearance on connecting pin 15 and union joint 14 is less, assemble extremely difficult, but when gap is bigger, assembling is relatively easy and intermediate, injection pump, executor's parts form and position tolerance can suitably reduce but adjusting return difference is relatively big, and regulation performance can seriously be deteriorated.
Claims (4)
- null1. an executor and oil injection pump offset attachment structure，Including intermediate (2)、Screw (4)、Pallet (5)、Connection dish (6)、Back-moving spring (7)、Nut (8)、Spring washer (9)、Plain washer (10)、Driving lever (11) on executor (1)、Push-pull bar (12)、Ratch (13) on injection pump (3)，It is characterized in that: back-moving spring (7) one end is located on injection pump (3) ratch hole，The other end is pressed on connection dish (6)，Connection dish (6) is connected by two screws (4) with ratch (13)，Pallet (5) and back-moving spring (7) use location, pallet (5) outer，Connection dish (6) uses with back-moving spring (7) and is connected dish (6) internal protrusion location，Push-pull bar (12) head is external screw thread，Thread root is provided with Step Shaft，Driving lever (11) major part center is provided with unthreaded hole，By nut (8)、Spring washer (9)、Plain washer (10) presses solidly at push-pull bar (12) step axle head，There is offset distance in push-pull bar (12) center of ratch (13) axis and executor (1)，Intermediate (2) and injection pump (3) are outside in Shaft alignment state.
- A kind of executor the most according to claim 1 and oil injection pump offset attachment structure, it is characterized in that: described connection dish (6) one end is disc, dish is provided with step cutting pattern, form spring base, connection dish (6) other end is shaft-like, bar portion mills out two rectangular faces, and a right-angle surface is provided with two tapped through holes for being connected with ratch (13), and connection dish (6) disc centre is coaxial with the ratch hole on injection pump (3).
- A kind of executor the most according to claim 1 and oil injection pump offset attachment structure, it is characterized in that: the described double step cylinder that pallet (5) is hollow, it is respectively arranged at two ends with internal and external stopper, one end is for positioning with injection pump (3) ratch hole, and one end is provided with the spring base into position reset spring (7).
- A kind of executor the most according to claim 1 and oil injection pump offset attachment structure, it is characterized in that: be rigidly connected by two screws (4) between the ratch (13) on described connection dish (6) and injection pump (3), the connection between driving lever (11) and connection dish (6) on executor (1) is that biasing zero-clearance pushes away mode mutually, and connection dish (6) center is parallel with push-pull bar (12) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145893.XA CN102644533B (en) | 2012-05-12 | 2012-05-12 | Executor and oil injection pump offset attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145893.XA CN102644533B (en) | 2012-05-12 | 2012-05-12 | Executor and oil injection pump offset attachment structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102644533A CN102644533A (en) | 2012-08-22 |
| CN102644533B true CN102644533B (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210145893.XA Expired - Fee Related CN102644533B (en) | 2012-05-12 | 2012-05-12 | Executor and oil injection pump offset attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102644533B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336020A (en) * | 2020-04-21 | 2020-06-26 | 河南柴油机重工有限责任公司 | Buffering formula executor rack connection structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918318A (en) * | 1974-04-01 | 1975-11-11 | Cav Ltd | Actuator mechanism |
| GB2256012A (en) * | 1991-05-22 | 1992-11-25 | Kloeckner Humboldt Deutz Ag | A fuel injection device for diesel engines |
| CN1452692A (en) * | 2000-05-26 | 2003-10-29 | 洋马株式会社 | Fuel injection pump |
| CN101482077A (en) * | 2008-03-24 | 2009-07-15 | 中国兵器工业集团第七○研究所 | Connection structure for actuator and fuel injection pump of diesel engine |
-
2012
- 2012-05-12 CN CN201210145893.XA patent/CN102644533B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918318A (en) * | 1974-04-01 | 1975-11-11 | Cav Ltd | Actuator mechanism |
| GB2256012A (en) * | 1991-05-22 | 1992-11-25 | Kloeckner Humboldt Deutz Ag | A fuel injection device for diesel engines |
| CN1452692A (en) * | 2000-05-26 | 2003-10-29 | 洋马株式会社 | Fuel injection pump |
| CN101482077A (en) * | 2008-03-24 | 2009-07-15 | 中国兵器工业集团第七○研究所 | Connection structure for actuator and fuel injection pump of diesel engine |
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| Publication number | Publication date |
|---|---|
| CN102644533A (en) | 2012-08-22 |
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Granted publication date: 20161019 |