CN201129372Y - Fuel injection pump pre-stroke controlling mechanism and pre-stroke control bar parts transfer connecting structure - Google Patents
Fuel injection pump pre-stroke controlling mechanism and pre-stroke control bar parts transfer connecting structure Download PDFInfo
- Publication number
- CN201129372Y CN201129372Y CNU2007201885101U CN200720188510U CN201129372Y CN 201129372 Y CN201129372 Y CN 201129372Y CN U2007201885101 U CNU2007201885101 U CN U2007201885101U CN 200720188510 U CN200720188510 U CN 200720188510U CN 201129372 Y CN201129372 Y CN 201129372Y
- Authority
- CN
- China
- Prior art keywords
- stroke
- fuel injection
- injection pump
- pump pre
- worm
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a transmission connecting structure of a fuel pump pre-stroke control mechanism and a pre-stroke control lever component, which comprises a stepping motor component, a worm gear pair transmission component and a fuel pump pre-stroke control lever component. The stepping motor component drives the worm gear pair transmission component, the fuel pump pre-stroke control lever component is transmitted by the worm gear pair transmission component, and a worm-wheel shaft is fixedly connected with a pusher dog. A control lever and a transitional connecting sleeve are in hinged and threaded locking by transitional sleeve connecting screws, and the pusher dog is connected with the transitional connecting sleeve through a cross connecting tray. Impact force upon the control from the lever worm-wheel shaft can be reduced by utilizing the structure of the utility model, and affection upon other parts from the vibration of the fuel pump pre-stroke control lever component can be slowed down. The transmission connecting structure has the advantages of low processing difficulty, reliable use and guaranteeing reliability of other parts.
Description
Technical field
The utility model relates to a kind of power transmission connecting structure, relates in particular to a kind of fuel injection pump pre-stroke controlling mechanism and pretravel controlling rod parts and transmits linkage structure.
Background technique
Old-fashioned fuel injection pump pre-stroke controlling mechanism transmits in the linkage structure with pretravel controlling rod parts: being connected of worm-wheel shaft and controlling rod is to adopt directly locked Placement of screw.Adopt this Placement just to require each center of rotation of mutual coupling to overlap, this is just very high to the required precision of design and manufacturing, difficulty of processing is big, and each shaft connection place does not have to rise the design of buffer function, impact to axle body when electric motor starting and speed change is very big, damages axle body easily.
Summary of the invention
The utility model provides a kind of worm-wheel shaft easy for installation, that transmitting torque is reliable, transmitting accuracy is high and Placement of controlling rod made.
This fuel injection pump pre-stroke controlling mechanism and pretravel controlling rod parts transmit linkage structure, it comprises: stepper motor parts, worm couple transmission part and fuel injection pump pre-stroke controlling rod parts, the stepper motor parts drive the worm couple transmission part, worm couple transmission part transmission fuel injection pump pre-stroke controlling rod parts is characterized in that:
Described worm couple transmission part, the worm-wheel shaft of its clutch end is fixedlyed connected with a pusher dog; Join strand and use screw-threaded coupling with the employing of spacer shell attachment screw between controlling rod in the fuel injection pump pre-stroke controlling rod parts and the transition connecting sleeve; Be connected by the cross land between pusher dog and transition connecting sleeve, there are a pair of grooves that are mutually 90 degree at cross land middle part, and each groove is complementary with pusher dog and transition connecting sleeve respectively.
Useful technique effect of the present utility model is: difficulty of processing is low, use is reliable, guarantee other part reliability.
Description of drawings
Accompanying drawing 1, worm-wheel shaft and controlling rod joint structural drawing;
Accompanying drawing 2, the pusher dog sectional drawing;
Accompanying drawing 3, transition connecting sleeve sectional drawing;
Accompanying drawing 4, stepper motor parts and worm couple transmission part connection diagram;
In the accompanying drawing: worm-wheel shaft 1, cross land 2, controlling rod 3, transition connecting sleeve 4, spacer shell attachment screw 5, pusher dog 6, stepper motor components A, worm couple transmission part B, fuel injection pump pre-stroke controlling rod parts C.
Embodiment
A kind of fuel injection pump pre-stroke controlling mechanism and pretravel controlling rod parts transmit linkage structure, it comprises: stepper motor components A, worm couple transmission part B and fuel injection pump pre-stroke controlling rod parts C, the stepper motor components A drives worm couple transmission part B, worm couple transmission part B transmission fuel injection pump pre-stroke controlling rod parts C.
Worm couple transmission part B is connected the Placement that adopts in the place with fuel injection pump pre-stroke controlling rod parts C as follows: described worm couple transmission part B, and the worm-wheel shaft 1 of its clutch end is fixedlyed connected with a pusher dog 6; Join strand and use screw-threaded coupling with 5 employings of spacer shell attachment screw between controlling rod 3 among the fuel injection pump pre-stroke controlling rod parts C and the transition connecting sleeve 4; 4 of pusher dog 6 and transition connecting sleeves are connected by cross land 2, and there are a pair of grooves that are mutually 90 degree at cross land 2 middle parts, and each groove is complementary with pusher dog 6 and transition connecting sleeve 4 respectively.
Adopt linkage structure of the present utility model, can require relative reduction to " center of rotation of two axles of coupling will overlap mutually " this processing with assembling, the deviation range in the axle center of the diaxon that is complementary when promptly processing and installing can suitably be relaxed; Worm-wheel shaft 1 rotating speed that causes when stepper motor startup or speed change changes, and the impact force of 1 pair of controlling rod 3 of worm-wheel shaft can absorb a part by cross land 2 and pusher dog 6, reduce the impact that controlling rod 3 is subjected to, and prolongs the working life of controlling rod 3 and worm-wheel shaft 1.
The fuel pump fuel pressure changes frequent, cause fuel injection pump pre-stroke controlling rod parts C vibration frequent, linkage structure of the present utility model can be slowed down the influence of this vibration to other parts, guarantees the reliability of other parts, and install easier, transmission more reliable.
Claims (1)
1, a kind of fuel injection pump pre-stroke controlling mechanism and pretravel controlling rod parts transmit linkage structure, it comprises: stepper motor parts (A), worm couple transmission part (B) and fuel injection pump pre-stroke controlling rod parts (C), stepper motor parts (A) drive worm couple transmission part (B), worm couple transmission part (B) transmission fuel injection pump pre-stroke controlling rod parts (C) is characterized in that:
Described worm couple transmission part (B), the worm-wheel shaft of its clutch end (1) is fixedlyed connected with a pusher dog (6); Join strand and use screw-threaded coupling with spacer shell attachment screw (5) employing between controlling rod (3) and the transition connecting sleeve (4); Be connected by cross land (2) between pusher dog (6) and transition connecting sleeve (4), there are a pair of grooves that are mutually 90 degree at cross land (2) middle part, and each groove is complementary with pusher dog (6) and transition connecting sleeve (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201885101U CN201129372Y (en) | 2007-12-14 | 2007-12-14 | Fuel injection pump pre-stroke controlling mechanism and pre-stroke control bar parts transfer connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201885101U CN201129372Y (en) | 2007-12-14 | 2007-12-14 | Fuel injection pump pre-stroke controlling mechanism and pre-stroke control bar parts transfer connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129372Y true CN201129372Y (en) | 2008-10-08 |
Family
ID=40017215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201885101U Expired - Lifetime CN201129372Y (en) | 2007-12-14 | 2007-12-14 | Fuel injection pump pre-stroke controlling mechanism and pre-stroke control bar parts transfer connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129372Y (en) |
-
2007
- 2007-12-14 CN CNU2007201885101U patent/CN201129372Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071214 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |