CN208122989U - A kind of injection pump adjustment gear - Google Patents
A kind of injection pump adjustment gear Download PDFInfo
- Publication number
- CN208122989U CN208122989U CN201820594671.9U CN201820594671U CN208122989U CN 208122989 U CN208122989 U CN 208122989U CN 201820594671 U CN201820594671 U CN 201820594671U CN 208122989 U CN208122989 U CN 208122989U
- Authority
- CN
- China
- Prior art keywords
- adjustment gear
- gear
- tooth
- ratch
- injection pump
- 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.)
- Active
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
A kind of injection pump adjustment gear, is sleeved on the pump housing（2）The plunger bushing of interior installing（3）Outside, adjustment gear（1）The gear teeth are had on periphery（C）, equipped, adjustment gear is engaged with ratch (5) are adjusted（1）Top be a circle not pulley teeth（C）Annular cylindrical (H), have several guiding tooths above（T）, axially through adjustment gear（1）The gear teeth（C）, the two sides of guiding tooth (T) are respectively provided with a positioning tooth（F）, adjustment gear（1）The annular cylindrical face on top（H）Axial width be 2-5mm, positioning tooth（F）The gullet depth formed between the annular cylindrical face (H) being connected, the 25-50% of gullet depth only between the gear teeth (C).When equipped, positioning tooth (F) determines adjustment gear from two sides（1）With adjusting ratch（5）Match holding position, guarantee accurate positioning.Misloading phenomenon can be prevented, mating effect is good, and charge oil pressure is stablized, and guarantees the matching performance of injection pump and single cylinder diesel.
Description
Technical field
The utility model relates to single cylinder diesel matching component more particularly to injection pumps.
Background technique
Single cylinder diesel is the traditional small power generating machine in China, and mechanical injection pump is related by the diameter of change plunger etc.
The dimensions of components, it is mating with host, using the cam axle on diesel engine, push tappet body driving piston reciprocation fortune
It is dynamic, high pressure is generated, the fuel oil for inputting injection pump is pressurizeed, the work done of cylinder of diesel engine compression ignition is sprayed by fuel injector.Using gear
The injection pump of ratch structure adjusting oil mass, the correctness of gear and ratch rigging position determine the standard of injection pump calibration oil mass
True property.Domestic common such high-pressure injection pump injection pressure is high, it is desirable that the consistency of fuel delivery is high, for injection pump installation
Technical requirements are high.The entire periphery of adjustment gear that mechanical injection pump uses at present is all full tooth, and assembly method is：By ratch
It is packed into pump housing ratch hole, keeps ratch position placed in the middle, operator will protrude into index finger or little finger insertion adjustment gear open slot
In the pump housing, the assembly mark being aligned on ratch and gear makes the teeth engagement of the two, the gear of this structure, even if assembly note
Number fail completely to upper, ratch and gear can also be completed to engage when assembly, but tooth matching angle and position be not right, is easy to appear mistake
Tooth phenomenon causes oil pump feed amount inaccurate, and when fuel delivery is less than normal, for shortage of oil, power reduces, stops oil and shift to an earlier date；Fuel delivery is inclined
When big, it may appear that do not stop oily phenomenon, nominal power increases, and will cause runaway accident when serious.In order to solve this problem, it improves
The adjustment gear structure of mechanical injection pump, it has also become one of important research content in industry.
Utility model content
The purpose of this utility model exactly improves structure on the basis of existing adjustment gear, and providing one kind can prevent
The adjustment gear of misloading guarantees the accurately assembly, correct engagement in injection pump of gear and ratch, improves for oil-proofness, meet
Injection pump performance requirement matched with host.
The task of the utility model is completed in this way：A kind of injection pump adjustment gear is designed, it is built-in to be sleeved on the pump housing
If plunger bushing outside, the gear teeth are had on adjustment gear periphery, engages equipped with ratch is adjusted, the top of adjustment gear is one
The annular cylindrical face of not pulley teeth is enclosed, only several guiding tooths are oriented to axially through the gear teeth of adjustment gear on annular cylindrical face
The two sides of tooth are respectively provided with the positioning tooth of one with gear teeth perforation.The axial width in the annular cylindrical face on adjustment gear top is 2-
5mm.The gullet depth formed between the positioning tooth of the guiding tooth two sides on adjustment gear top and the annular cylindrical face being connected, than adjusting
The tooth socket saved between each gear teeth of gear is shallow, the 25-50% of the gullet depth only between the gear teeth, and when being equipped with, positioning tooth is from two
Side determines adjustment gear and adjusts the cooperation position of ratch.
When practical set, ratch will be adjusted and be packed into pump housing ratch hole, keep adjusting ratch position placed in the middle, passed through in adjustment gear
The guiding tooth of logical periphery and the positioning tooth alignment of two sides adjust ratch, and the adjustment gear position angle equipped with ratch is adjusted is quasi-
Really, the gear teeth of adjustment gear are achieved that engage with the teeth for adjusting ratch and are equipped with.If the radial riding position of adjustment gear
Not right, be staggered certain angle, and the positioning tooth of the guiding tooth of adjustment gear and two sides is not aligned and adjusts ratch at this time, makes adjustment gear
The annular cylindrical face on top is opposite with ratch is adjusted, and annular cylindrical face cannot cooperate with ratch is adjusted, and can not be equipped with, only adjust
When section gear is in correct position, just it can be carried out equipped.This prevents misloading phenomenons, ensure that adjustment gear and adjusting
The equipped position angle of ratch is accurate, and engagement is correct.It is good for oil connectivity to accurately control the fuel delivery of injection pump, it can
To provide stable oil mass for host.
Manufactured experimently, tested according to above-mentioned technical proposal, it was demonstrated that the utility model it is structurally reasonable, assembly is accurate, can
Misloading phenomenon effectively is avoided, mating effect is good, and charge oil pressure is stablized, guarantee the matching performance of injection pump and single cylinder diesel, compared with
Predetermined purpose is reached well.
Detailed description of the invention
Fig. 1 is the shape assumption diagram of the utility model；
Fig. 2 is the B-B diagrammatic cross-section of Fig. 1；
Fig. 3 is the diagrammatic cross-section that adjustment gear 1 is assembled in the pump housing 2；
Fig. 4 is the A partial enlarged view in Fig. 3；
Fig. 5 is that the adjustment gear 1 and adjusting ratch 5 in Fig. 4 are equipped with schematic diagram.
In figure, 1-adjustment gear, the 2-pump housings, 3-plunger bushings, 4-plungers, 5-adjust ratch, 6-plunger springs；
A-local symbol, B-section symbols, the C-gear teeth, D-gear center hole, F-positioning tooth, G-ratch handle, H-annular cylindrical
Face, L-gear handle, Q-plunger cavity, T-guiding tooth.
Specific embodiment
Specific embodiment of the present utility model is illustrated with reference to the accompanying drawing.
Refering to fig. 1, Fig. 2, gear teeth C is had on 1 periphery of adjustment gear, and the top of adjustment gear 1 is a circle not pulley teeth C
Annular cylindrical face H, have several guiding tooth T on the H of annular cylindrical face, axially through the gear teeth C of adjustment gear 1, the two of guiding tooth T
Side is respectively provided with the positioning tooth F of one with gear teeth C perforation.The axial width of annular cylindrical face H in adjustment gear 1 is 2-5mm.It adjusts
The depth for saving the tooth socket formed between the positioning tooth F and the annular cylindrical face H being connected of the two sides guiding tooth T on 1 top of gear, than adjusting
The tooth socket saved between each gear teeth C of gear 1 is shallow, the 25-50% of gullet depth between only gear teeth C, when assembly positioning tooth F from
Two sides determine adjustment gear 1 and adjust the cooperation position of ratch 5.Guarantee accurate positioning.
Refering to Fig. 3, Fig. 4, Fig. 5, adjustment gear 1 is that injection pump is mating, is installed in the plunger cavity Q of the pump housing 2, is sleeved on column
3 outside of plug sleeve is engaged equipped with adjusting ratch 5.Only when the radial riding position angle of adjustment gear 1 is correct, guiding tooth T and fixed
Position tooth F could be equipped with adjusting ratch 5 and engage towards ratch 5 is adjusted.If adjustment gear 1 riding position inaccuracy, offset one
Determine angle, make the shiny surface of annular cylindrical face H and adjust ratch 5 relatively, engagement can not be just equipped with, only when adjustment gear is in
When correct position, just it can be carried out equipped.It eliminates adjustment gear 1 and adjusts 5 angle of assembling of ratch and be not allowed and cause injection pump
The unstable phenomenon of fuel feeding.
When practical set, ratch 5 will be adjusted and be packed into the ratch hole of the pump housing 2, keep adjusting 5 position of ratch placed in the middle, adjusting tooth
The positioning tooth F alignment for taking turns guiding tooth T and two sides that 1 penetrates through periphery adjusts ratch 5, what adjustment gear 1 and adjusting ratch 5 were equipped with
Position angle is accurate, and the gear teeth C of adjustment gear 1 is achieved that engage with the teeth for adjusting ratch 5 and is equipped with.If adjustment gear 1
Radial riding position inaccuracy, be staggered certain angle, the positioning tooth F of guiding tooth T and two sides be not aligned with adjust ratch 5, make
The shiny surface and adjusting ratch 5 of the annular cylindrical face H on 1 top of adjustment gear is opposite, and annular cylindrical face H and adjusting ratch 5 are not
It is able to cooperate, this prevents misloading phenomenon, guarantees that adjustment gear 1 and adjusting ratch 5 are equipped accurate, engagement is correct.
The utility model adjustment gear 1 is accurate with the rigging position angle for adjusting ratch 5, and assembling quality is high, it is therefore prevented that wrong
Phenomenon is filled, it is good for oil connectivity, stable oil mass can be provided, guarantee that injection pump meets the mating requirement of diesel engine.
Claims (3)
1. a kind of injection pump adjustment gear, is sleeved on the pump housing（2）The plunger bushing of interior installing（3）Outside, adjustment gear（1）Outer circle
The gear teeth are had on face（C）, engaged with adjusting ratch (5) equipped, it is characterised in that adjustment gear（1）Top be a circle not belt wheel
Tooth（C）Annular cylindrical face (H), annular cylindrical face (H) above have several guiding tooths (T), axially through the wheel of adjustment gear (1)
Tooth（C）, the two sides of guiding tooth (T) are respectively provided with one and the gear teeth（C）The positioning tooth of perforation（F）.
2. injection pump adjustment gear described in accordance with the claim 1, it is characterised in that the adjustment gear（1）The ring on top
The axial width on shape cylindrical surface (H) is 2-5mm.
3. injection pump adjustment gear described in accordance with the claim 1, it is characterised in that the positioning tooth of guiding tooth (T) two sides
（F）The gullet depth formed between the annular cylindrical face (H) being connected, compares adjustment gear（1）Each gear teeth（C）Between tooth
Slot is shallow, only the gear teeth（C）Between gullet depth 25-50%, be equipped with when, positioning tooth（F）Adjustment gear is determined from two sides（1）
With adjusting ratch（5）Cooperation position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820594671.9U CN208122989U (en) | 2018-04-25 | 2018-04-25 | A kind of injection pump adjustment gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820594671.9U CN208122989U (en) | 2018-04-25 | 2018-04-25 | A kind of injection pump adjustment gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122989U true CN208122989U (en) | 2018-11-20 |
Family
ID=64186327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820594671.9U Active CN208122989U (en) | 2018-04-25 | 2018-04-25 | A kind of injection pump adjustment gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122989U (en) |
-
2018
- 2018-04-25 CN CN201820594671.9U patent/CN208122989U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2006057979A3 (en) | Fuel pump with a guided tappet assembly and methods for guiding and assembly | |
| CN101456113B (en) | Crank pulley assembly method and guiding tool | |
| WO2012065569A8 (en) | High-pressure fuel pump | |
| GB2079382A (en) | Fuel injection pump | |
| CN105971959A (en) | Differential pressure type unloading safety valve | |
| CN208122989U (en) | A kind of injection pump adjustment gear | |
| US2372694A (en) | High-pressure fluid pump | |
| CN108397324A (en) | A kind of gasoline high pressure oil rail and its processing technology | |
| CN105345734A (en) | Bearing outer ring press fitting tool | |
| CN203532128U (en) | Overflow valve for common-rail and high-pressure oil pump | |
| CN205989163U (en) | Crank assemblby press-fits timing gears device | |
| CN212330262U (en) | Plunger pump rotor copper sleeve frock of impressing | |
| US2465046A (en) | High-pressure fluid pump | |
| CN104097235B (en) | Self-lubricate chain saw | |
| CN201739055U (en) | High-pressure oil pump | |
| ES8103590A1 (en) | Drive cam and follower for a liquid fuel injection pumping apparatus | |
| CN2639547Y (en) | Strengthened fuel-injection pump assembly | |
| CN214641577U (en) | Tool for assembling aviation case plug | |
| EP0059943A1 (en) | Fuel injection pump for internal combustion engines | |
| CN219529174U (en) | In-line common rail oil feed pump for high rail pressure and high rotation speed common rail system | |
| CN205089511U (en) | Take effluent oil recovery's injection pump | |
| CN219504693U (en) | Electric hydraulic tool | |
| JPS6246854Y2 (en) | ||
| CN213144641U (en) | Inline injection pump for suppressing oil entry | |
| CN214444355U (en) | Camshaft signal wheel press fitting tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |