CN100549448C - Fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure - Google Patents
Fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure Download PDFInfo
- Publication number
- CN100549448C CN100549448C CNB2007100931376A CN200710093137A CN100549448C CN 100549448 C CN100549448 C CN 100549448C CN B2007100931376 A CNB2007100931376 A CN B2007100931376A CN 200710093137 A CN200710093137 A CN 200710093137A CN 100549448 C CN100549448 C CN 100549448C
- Authority
- CN
- China
- Prior art keywords
- fuel injection
- worm
- injection pump
- controlling rod
- transmission part
- 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 - Fee Related
Links
Images
Landscapes
- Transmission Devices (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a kind of fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure, the stepper motor parts drive the worm couple transmission part, worm couple transmission part transmission fuel injection pump pre-stroke controlling rod parts, worm couple transmission part and fuel injection pump pre-stroke controlling rod parts joint: worm-wheel shaft is fixedlyed connected with pusher dog, adopt with the spacer shell attachment screw between controlling rod and the transition connecting sleeve and join strand and to use screw-threaded coupling, be connected by the cross land between pusher dog and transition connecting sleeve; Stepper motor parts and worm couple transmission part joint: the stepper motor axial end becomes D shape structure, has a D type hole and step motor shaft to be complementary on the worm screw; Useful technique effect of the present invention is: difficulty of processing is low, use is reliable, guarantee other part reliability.
Description
Technical field
The present invention relates to a kind of power transmission connecting structure, relate in particular to a kind of fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure.
Background technique
Old-fashioned fuel injection pump pre-stroke controlling mechanism and pretravel controlling rod parts transmit in the linkage structure: step motor shaft and worm screw be connected and being connected of worm-wheel shaft and controlling rod all adopted 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 invention provides a kind of fuel injection pump pre-stroke controlling mechanism easy for installation, that transmitting torque is reliable, transmitting accuracy is high and controlling rod power transmission connecting structure made.
This fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting 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, its innovative point is:
Worm couple transmission part and fuel injection pump pre-stroke controlling rod parts joint: 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 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.
Stepper motor parts and worm couple transmission part joint: the stepper motor axial end becomes D shape structure, has a D type hole and step motor shaft to be complementary on the worm screw.
Described D type hole, its formation: worm screw and step motor shaft connecting end have a U type groove, and a U type key is arranged in the U type groove, and U type key is fixed on the worm screw cylindrical with fixing tight cover, U type key and U type groove form D type hole naturally because of size deviation, and D type hole size and step motor shaft are complementary.
Useful technique effect of the present invention 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, step motor shaft and worm screw joint structural drawing;
Accompanying drawing 5, step motor shaft and worm screw joint sectional drawing;
In the accompanying drawing: step motor shaft 1, U type key 2, fixing tight cover 3, worm screw 4, worm-wheel shaft 5, cross land 6, controlling rod 7, transition connecting sleeve 8, spacer shell attachment screw 9, pusher dog 10, 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 controlling rod power transmission connecting 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, its specialization is:
Referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, worm couple transmission part B and fuel injection pump pre-stroke controlling rod parts C joint: described worm couple transmission part B, the worm-wheel shaft 5 of its clutch end is fixedlyed connected with a pusher dog 10; Join strand and use screw-threaded coupling with 9 employings of spacer shell attachment screw between controlling rod 7 and the transition connecting sleeve 8; 8 of pusher dog 10 and transition connecting sleeves are connected by cross land 6, and there are a pair of grooves that are mutually 90 degree at cross land 6 middle parts, and each groove is complementary with pusher dog 10 and transition connecting sleeve 8 respectively.
Referring to accompanying drawing 4, stepper motor components A and worm couple transmission part B joint: step motor shaft 1 end face becomes D shape structure, has a D type hole and step motor shaft 1 to be complementary on the worm screw 4.
Referring to accompanying drawing 5, described D type hole, its formation: worm screw 4 has a U type groove with step motor shaft 1 connecting end, one U type key 2 is arranged in the U type groove, the fixing tight cover 3 of U type key 2 usefulness is fixed on worm screw 4 cylindricals, U type key 2 forms D type hole with U type groove naturally because of size deviation, and D type hole size and step motor shaft 1 are complementary.
Adopt connectivity scenario of the present invention, 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; When stepper motor startup or speed change, the impact of 1 pair of worm screw 4 of step motor shaft can suitably be cushioned by U type key 2; And stepper motor starts or worm-wheel shaft 5 rotating speeds that cause during speed change change, the impact force of 5 pairs of controlling rods 7 of worm-wheel shaft can absorb a part by cross land 6 and pusher dog 10, reduce the impact that step motor shaft 1, worm screw 4, worm-wheel shaft 5, controlling rod 7 are subjected to, prolong each working life.
The fuel pump fuel pressure changes frequent, causes fuel injection pump pre-stroke controlling rod parts C vibration frequent, and connectivity scenario of the present invention can slow down the influence of this vibration to other component, guarantees its reliability, and install easier, transmission more reliable.
Claims (3)
1, a kind of fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting 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:
Worm couple transmission part (B) and fuel injection pump pre-stroke controlling rod parts (C) joint: described worm couple transmission part (B), the worm-wheel shaft of its clutch end (5) is fixedlyed connected with a pusher dog (10); Join strand and use screw-threaded coupling with spacer shell attachment screw (9) employing between controlling rod (7) and the transition connecting sleeve (8); Be connected by cross land (6) between pusher dog (10) and transition connecting sleeve (8), there are a pair of grooves that are mutually 90 degree at cross land (6) middle part, and each groove is complementary with pusher dog (10) and transition connecting sleeve (8) respectively.
2, fuel injection pump pre-stroke controlling mechanism according to claim 1 and controlling rod power transmission connecting structure is characterized in that:
Stepper motor parts (A) and worm couple transmission part (B) joint: step motor shaft (1) end face becomes D shape structure, has a D type hole and step motor shaft (1) to be complementary on the worm screw (4).
3, fuel injection pump pre-stroke controlling mechanism according to claim 2 and controlling rod power transmission connecting structure, it is characterized in that: described D type hole, its formation: worm screw (4) has a U type groove with step motor shaft (1) connecting end, one U type key (2) is arranged in the U type groove, U type key (2) is fixed on worm screw (4) cylindrical with fixing tight cover (3), U type key (2) forms D type hole with U type groove naturally because of size deviation, and D type hole size and step motor shaft (1) are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100931376A CN100549448C (en) | 2007-12-14 | 2007-12-14 | Fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100931376A CN100549448C (en) | 2007-12-14 | 2007-12-14 | Fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101178096A CN101178096A (en) | 2008-05-14 |
| CN100549448C true CN100549448C (en) | 2009-10-14 |
Family
ID=39404462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100931376A Expired - Fee Related CN100549448C (en) | 2007-12-14 | 2007-12-14 | Fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100549448C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562836B (en) * | 2011-01-24 | 2014-09-10 | 张文玺 | Shaft and rod micro-clearance direct-connection technology |
-
2007
- 2007-12-14 CN CNB2007100931376A patent/CN100549448C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101178096A (en) | 2008-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106428192A (en) | Shaft coupling structure and electric power steering system | |
| US20150226270A1 (en) | Electromotive drive | |
| CN203412971U (en) | Connecting structure between speed reducer and motor | |
| CN100549448C (en) | Fuel injection pump pre-stroke controlling mechanism and controlling rod power transmission connecting structure | |
| CN201547142U (en) | Novel coupler used on hydraulic pump | |
| WO1987007344A1 (en) | Spline anti-backlash device | |
| CN201129370Y (en) | Fuel injection pump pre-stroke controlling mechanism power transmission connecting structure | |
| CN202203291U (en) | Coupler adopting small drum-shaped teeth matching and connection | |
| WO2020192580A1 (en) | Driver and integrated coupler thereof | |
| CN201129372Y (en) | Fuel injection pump pre-stroke controlling mechanism and pre-stroke control bar parts transfer connecting structure | |
| CN209687942U (en) | Driver and its integral type shaft coupling | |
| CN211901331U (en) | Spline structure for strengthening positioning of coupler | |
| CN202867600U (en) | Coupler | |
| CN109595267A (en) | A kind of insulating coupling | |
| CN109026976B (en) | Crankshaft front end gear power output structure and installation method thereof | |
| CN209539848U (en) | A kind of insulating coupling | |
| CN203516414U (en) | Split type rotating shaft | |
| CN102650323A (en) | High-speed elastic shaft coupler for servo system | |
| CN105519257B (en) | From the gap Hooks coupling universal coupling that disappears | |
| CN201547152U (en) | Cushioning shaft joint of micro-cultivating machine | |
| CN201513341U (en) | Drive module for rotary fuel-feed pump | |
| CN217842529U (en) | Worm axial self-reactive balance speed reducer | |
| CN217207396U (en) | Coupling structure convenient to assemble and disassemble | |
| CN215719743U (en) | Pump coupling with axial locking function | |
| CN219587954U (en) | Power component output shaft lengthening structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20131214 |