CN202250532U - Integral type adjusting gear rack for adjusting oil mass of oil injection pump of single cylinder diesel - Google Patents
Integral type adjusting gear rack for adjusting oil mass of oil injection pump of single cylinder diesel Download PDFInfo
- Publication number
- CN202250532U CN202250532U CN2011204049305U CN201120404930U CN202250532U CN 202250532 U CN202250532 U CN 202250532U CN 2011204049305 U CN2011204049305 U CN 2011204049305U CN 201120404930 U CN201120404930 U CN 201120404930U CN 202250532 U CN202250532 U CN 202250532U
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- China
- Prior art keywords
- injection pump
- adjusting gear
- adjusting
- integral type
- rack
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- Expired - Fee Related
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Abstract
The utility model relates to an integral type adjusting gear rack for adjusting oil mass of an oil injection pump of a single cylinder diesel, which is engaged with an adjusting gear (7), an adjusting gear rack (6) is in an integral type structure, a rack rod (G) and a convex handle (T) are fixed and integrated, a handle neck (J) of the convex handle (T), which is connected with the rack rod (G), is a longitudinal flat-shaped body, the thickness of the handle neck (J) is the same as the thickness of the top surface of the rack rod (G), the adjusting gear rack (6) in an integral type structure is made of a powder metallurgy material, is made through die-casting of a precision casting mould, is high in precision, and has no burr, and is high in assembly cleanliness, is good in matching performance, is high in once assembly acceptability with an oil injection pump assembly and is safe and reliable in use. The integral type adjusting gear rack has a reasonable structure, simple process, high strength, low cost, good quality, high production efficiency and good straightness of the rack rod (G), which prevents the dropping phenomenon of the convex handle (T) in the original split type combined structure, ensures the accuracy of adjusting oil mass of the an oil injection pump, has good economic and social benefits and bright popularization and application prospects.
Description
Technical field
The utility model relates to diesel injection pump, relates in particular to the oil controller of Injection Pump.
Background technique
Being set fuel-flow control tooth bar and adjusting gear on the supporting single cylinder fuel injection pump of single cylinder diesel, is a pair of strength member that is meshing with each other, is used to regulate Injection Pump fuel delivery size.Through the engagement driving of fuel-flow control tooth bar and adjusting gear, drive plunger and rotate corresponding angle, play the effect of regulating oil mass.The adjusting tooth bar that present domestic single cylinder fuel injection pump is used is combined by rack bar and two unitary part of protruding handle, and material is generally selected the 45# steel for use; Carry out the cutting moulding respectively; Process rack bar through turning moulding, cylindrical grinding, brill end face hole, mill teeth, process protruding handle, more protruding handle is inserted the end face hole of rack bar through turning moulding, turning bulb; Press-fit interference fit, connection is fixed as one.This split modular structure manufacturing procedure is complicated, and workpiece is prone to produce burr in the course of working, limits owing to receive structure shape, be difficult to eliminate through grinding, and when being equipped with Injection Pump, influence assembling sliding.Join strength is low, and rack bar is yielding, and straightness accuracy is difficult for guaranteeing.Connect when insecure, the easy deflection of protruding handle and rack bar joint, activity or come off influence the accuracy of ensuring smooth transmission property and fuel-flow control, can cause the serious accident of Runaway of Diesel Engine when serious, have certain hidden danger.
The model utility content
The purpose of the utility model is improved on the architecture basics of existing adjusting tooth bar exactly, and a kind of novel fuel-flow control tooth bar is provided, and improves structural strength; The conformity that keeps package size guarantees that smooth surface do not have burr, simplified manufacturing technique; Improve matching performance, reduce production costs, improve injection pump assembly and once assemble up-to-standard rate; Strengthen safety in utilization, enhance productivity, increase the service life.
The task of the utility model is to accomplish like this: on rack bar that has the adjusting tooth bar now and protruding handle split modular structure basis, improve; Design a kind of single cylinder diesel Injection Pump adjusting oil mass and regulate tooth bar with integrated type; In fuel injection pump housing, be meshed with adjusting gear, the adjusting tooth bar is a monolithic construction, and rack bar and protruding handle are fixed as one; The handle neck that protruding handle connects rack bar is vertical flat-shaped body, and its thickness is identical with the thickness of rack bar top plan.The adjusting tooth bar of monolithic construction is to adopt powdered metallurgical material, processes through precision casting mold die casting.Because adopt powder metallurgy precision die casting once-through, the dimensional uniformity of product is good, the smooth no burr of external form; The intensity of monolithic construction is even; Thoroughly stopped protruding handle and separated obscission, need not carry out protruding handle soundness test, once assembled the up-to-standard rate height with injection pump assembly with rack bar; Matching performance is good, the fuel-flow control performance of guaranteeing injection pump assembly accurately, reliable.
Make, test according to technique scheme, prove the rational in infrastructure of the utility model, technology is simple, can guarantee the conformity of fitted position; Precision is high, no burr, and the intensity of monolithic construction is high, and is good with the supporting sliding of injection pump assembly; Once assemble the up-to-standard rate height, fabricating cost is low, and matching performance is good, and manufacturing efficiency is high; Assurance is supporting safe and reliable with injection pump assembly, and the life-span durable in use is long, and economic and social benefits are good, reached predetermined purpose preferably.
Description of drawings
Fig. 1 is the mounting structure partial cutaway schematic of the utility model on injection pump assembly;
Fig. 2 is the monolithic construction schematic representation of the utility model;
Fig. 3 is that the A of Fig. 2 is to view.
Among the figure, 1-delivery valve holder, 2-oil inlet pipe bolt, 3-fuel injection pump housing, 4-plunger bushing, 5-plunger, 6-adjusting tooth bar, 7-adjusting gear, 8-piston spring, 9-pusher body; A-line of vision symbol, G-rack bar, C-driving cog, T-protruding handle, J-handle neck.
Embodiment
Be described further below in conjunction with the practical implementation of accompanying drawing the utility model.
Consult Fig. 1; Installing delivery valve holder 1, oil inlet pipe bolt 2 on the fuel injection pump housing 3, the plunger coupled parts of plunger bushing 4 and plunger 5 compositions is equipped with in inside, and fixed cover is debug joint gear 7 on the plunger bushing 4; To the two lobe hollow shaft sleeves that extend below piston spring 8 is housed around plunger 5 and adjusting gear 7; On the cylindrical body wall of fuel injection pump housing 3, open the tooth bar hole slot, tooth bar 6 is regulated in installing, in fuel injection pump housing 3 inner chambers be installed on plunger bushing 4 on adjusting gear 7 be meshed.The protruding handle T that regulates tooth bar 6 stretches out in fuel injection pump housing 3 outsides; Stirring adjusting tooth bar 6 by the shift fork in the single cylinder diesel moves back and forth; The adjusting gear 7 that drive is meshed back and forth rotates; Thereby plunger bushing 4 is rotated in corresponding angular range, regulate the fuel injection quantity of Injection Pump through plunger coupled parts.Dress pusher body 9 cooperates with the end of plunger 5 in fuel injection pump housing 3 lower ends.
Consult Fig. 2, Fig. 3, the protruding handle T and the rack bar G that regulate tooth bar 6 are monolithic construction, and the handle neck J that protruding handle T connects rack bar G is vertical flat-shaped body, and identical with the planar thickness of rack bar G end face, the bottom surface of rack bar G is driving cog C.Process integrated type with powdered metallurgical material by the smart casting of the mould of die casting and regulate tooth bar 6, rack bar G and driving cog C thereof are essence and cast type, need not carry out any machining, and precision is high, no burr, smooth outer surface is good with the supporting sliding of Injection Pump.Behind the die cast, only need simply finalize the design for processing to the bulb of protruding handle T outermost end gets final product, and does not influence the precision of driving cog C and rack bar G.Overall structure is carried out carburizing and quenching, further improves the bulk strength and the surface hardness of regulating tooth bar 6.
The monolithic construction of the utility model is reasonable, and technology is simple, has exempted the manufacturing process that existing separate assembling is regulated the turning moulding of the rack bar of tooth bar, cylindrical grinding, boring, mill teeth fully; The turning molding process of protruding handle; The manufacturing process that rack bar and protruding handle are pegged graft and press-fited and be press-fitted the soundness test.All-in-one-piece adjusting tooth bar 6 precision height, no burr, intensity height, the straightness accuracy of rack bar G is good, and fabricating cost is low; Manufacturing efficiency is high; Matching performance is good, and assembly cleanliness is high, long service life; Once assemble the up-to-standard rate height with Injection Pump, have good economic and social benefits and bright popularizing application prospect.
Claims (2)
1. the single cylinder diesel Injection Pump is regulated oil mass and is regulated tooth bar with integrated type; In fuel injection pump housing (3), be meshed with adjusting gear (7); It is characterized in that regulating tooth bar (6) and be monolithic construction; Rack bar (G) is fixed as one with protruding handle (T), and the handle neck (J) that protruding handle (T) connects rack bar (G) is vertical flat-shaped body, and its thickness is identical with the thickness of rack bar (G) top plan.
2. regulate oil mass according to the described single cylinder diesel Injection Pump of claim 1 and regulate tooth bar with integrated type, the adjusting tooth bar (6) that it is characterized in that described monolithic construction is to adopt powdered metallurgical material, processes through precision casting mold die casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204049305U CN202250532U (en) | 2011-10-22 | 2011-10-22 | Integral type adjusting gear rack for adjusting oil mass of oil injection pump of single cylinder diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204049305U CN202250532U (en) | 2011-10-22 | 2011-10-22 | Integral type adjusting gear rack for adjusting oil mass of oil injection pump of single cylinder diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250532U true CN202250532U (en) | 2012-05-30 |
Family
ID=46111787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204049305U Expired - Fee Related CN202250532U (en) | 2011-10-22 | 2011-10-22 | Integral type adjusting gear rack for adjusting oil mass of oil injection pump of single cylinder diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047784A (en) * | 2013-03-15 | 2014-09-17 | 江苏普盛动力股份有限公司 | Oil stop electromagnetic valve for oil injection pump of double-cylinder one-piece engine |
| CN109441681A (en) * | 2018-11-28 | 2019-03-08 | 重庆潍柴发动机有限公司 | A kind of latch fork type fuel delivery micromatic setting |
-
2011
- 2011-10-22 CN CN2011204049305U patent/CN202250532U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047784A (en) * | 2013-03-15 | 2014-09-17 | 江苏普盛动力股份有限公司 | Oil stop electromagnetic valve for oil injection pump of double-cylinder one-piece engine |
| CN109441681A (en) * | 2018-11-28 | 2019-03-08 | 重庆潍柴发动机有限公司 | A kind of latch fork type fuel delivery micromatic setting |
| CN109441681B (en) * | 2018-11-28 | 2023-11-17 | 重庆潍柴发动机有限公司 | Latch shifting fork type oil supply amount fine adjustment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20171022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |