CN2231712Y - Lower fulcrum torsion spring type mechanical governor - Google Patents
Lower fulcrum torsion spring type mechanical governor Download PDFInfo
- Publication number
- CN2231712Y CN2231712Y CN 94246110 CN94246110U CN2231712Y CN 2231712 Y CN2231712 Y CN 2231712Y CN 94246110 CN94246110 CN 94246110 CN 94246110 U CN94246110 U CN 94246110U CN 2231712 Y CN2231712 Y CN 2231712Y
- Authority
- CN
- China
- Prior art keywords
- governor
- lower fulcrum
- speed
- torsion spring
- supporting rod
- 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
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Abstract
The utility model relates to a lower fulcrum torsion spring type mechanical governor which is arranged on an in-line fuel injection pump of a diesel engine. The utility model is characterized in that the lower fulcrum torsion spring type mechanical governor is provided with a supporting rod and a tension rod, and the supporting rod is connected with a speed regulating sliding sleeve. The tension rod and the supporting rod are provided with common lower fulcrum, and a torsional spring is adopted as the spring of the governor. The lower fulcrum torsion spring type mechanical governor has the advantages of small force of operation, low regulating rate, high allowable rotating speed, simple structure and small size. The lower fulcrum torsion spring type mechanical governor is suitable for being arranged on a miniature oil injection pump, such as a 1 number pump, etc. The utility model can be used on various uses of diesel engines of transport vehicles, engineering machinery, agricultural machinery, diesel engine generator set, etc.
Description
The utility model is a kind of speed regulator of use for diesel engine, particularly a kind of steering force mechanical governor little, simple in structure that is applicable to the diesel engine in-line fuel injection pump.
The existing mechanical speed regulator can be divided into variable-speed governor and maximum-minimum speed governor two classes.Existing variable-speed governor steering force is big, and the counter-force when being used for haulage vehicle on the gas pedal is big, driver's fatiguability.Existing maximum-minimum speed governor steering force is little, and is suitable automobile-used, but complex structure, cost is higher.The I pump T7B variable-speed governor of current domestic mass production for example, adopt steel ball type flyball, slider disc and torsion spring, no governor lever, simple in structure, volume is little, but because the governor spring masterpiece is used on the flyball shaft center line, steering force is big, is not suitable for vehicle high speed diesel engine and uses, again because no lever ratio, speed governing rate height is not suitable for diesel generating set and uses.Also have a kind of speed regulator of allotting group of motors that is exclusively used on the I pump, adopt torsion spring, simple lever, lower fulcrum structure, though simple in structure, do not have automatic starting upgraded function, and steering force is very big, is not suitable for other purposes.And for example domestic and international widely used RSV variable-speed governor, RAD, RFD maximum-minimum speed governor, fulcrum three levers and four lever constructions in the employing, governor spring is extension spring, function ratio is more complete, but complex structure, volume is big, cost is high.The RVIM speed regulator of Czech MOTORPAL company, adopt the lower fulcrum double lever, though structure is simple, but governor spring adopts and is arranged in the stage clip that the flyball top links to each other with tension rail, the speed regulator height dimension is bigger, supporting scope is restricted, and is difficult to install and use on products such as I pump (seeing " external oil pump nozzle " the 4th phase in 1985).
The purpose of this utility model provides a kind of diesel engine machinery formula speed regulator of new structure, this speed regulator has better simply structure and less boundary dimension, and little, the allowable rotating speed height of steering force, speed governing rate are low, can satisfy the needs of various uses diesel engines such as haulage vehicle, engineering machinery, farm machinery, generator set.
The technical solution of the utility model is to adopt governor structure shown in the drawings, it is characterized in that having tension rail and supporting rod, and supporting rod is connected with the speed governing sliding sleeve, and tension rail and supporting rod are hinged on the rest pin that is positioned at flyball shaft center line below.Governor spring adopts torsion spring, can save extension spring or stage clip structure and leave the required space of spring swing for above flyball.Since the spring force point of action to the distance of lower fulcrum greater than the distance of flyball point of force application, so spring force is less than the flyball active force to lower fulcrum; Again because the stroke of spring force point of action less than rod stroke, can adopt short torsion spring to stretch out leg, so the moment of torsion of torsion spring is less.More than 2 all help reducing steering force, reduce the speed governing rate, improve the working speed allowable of speed regulator.In addition, rod stroke also helps reducing the speed governing rate greater than the sliding sleeve stroke in structure of the present utility model.
The advantage that the utility model is compared with prior art had is that existing structure is simple, and volume is little, highly low characteristics, be convenient to and the Injection Pump connection, it is little to have steering force again concurrently, and the speed governing rate is low, the premium properties that rotating speed allowable is high is suitable for the diesel engine of various uses supporting.
Technology contents below in conjunction with description of drawings two kinds of embodiments of the present utility model.
Fig. 1 is the sectional view of double lever lower fulcrum torsion spring structure variable-speed governor.
Fig. 2 is the sketch of three lever lower fulcrum torsion spring structure maximum-minimum speed governors.
Variable-speed governor shown in the figure l is a citation form of the present utility model.Flyball (3), speed governing sliding sleeve (4), the structure of flying hammer bracket (5) and corrector (10) is identical with existing RSV speed regulator, speed governing torsion spring (13), the structure of torsion spring mandrel (14) is identical with existing T78 speed regulator, the lower end of supporting rod (7) and tension rail (9) is hinged on the rest pin (8) that is positioned at flyball shaft center line below, the middle part of supporting rod (7) links to each other with sliding sleeve (4) by sliding sleeve pin (6), its upper end links to each other with pull bar (1), and by primer spring (2) pull to the left side, corrector (10) is equipped with at the middle part of tension rail (9), and speed governing torsion spring (13) is pressed on tension rail (9) on the limit whelk nail (12) by the roller (11) that is contained in tension rail (9) upper end.
During diesel engine starting, pull bar (1) is positioned at the starting upgraded position of high order end under the effect of primer spring (2).After the starting, rotating speed rises, and flyball (3) opens under centrifugal action, and promotion sliding sleeve (4) moves right and corrector (10) is collided, supporting rod (7) rotates around rest pin (8) under sliding sleeve pin (6) promotes, and drive pull bar (1) moves right to and proofreaies and correct the oil mass position.Rotating speed further rises to flyball thrust and surpasses the correcting spring pretightening force, sliding sleeve (4) beginning is along with corrector (10) is compressed in the rising of rotating speed to the right, cylndrical surface and tension rail (9) up to sliding sleeve (4) right-hand member are collided, and correction stroke finishes, and pull bar (1) is parked in specified oil mass position.Rotating speed further rises to flyball thrust and surpasses speed governing torsion spring pretightening force, and sliding sleeve (4) is pushed tension rail (9) open and moved right, and drives pull bar (1) and moves on to cut-out position to the right.Rotate torsion spring mandrel (14), can change speed governing torsion spring pretightening force, thus the control diesel engine speed, the ultra-Left position of limit whelk nail (12) restriction tension rail, thereby quota stand oil amount.
The basic structure of maximum-minimum speed governor shown in Figure 2 is similar substantially to variable-speed governor shown in Figure 1, its different piece is as described below: the first half of supporting rod (7) no longer links to each other with pull bar (1), increase governor lever (15) and speed crank (16) newly, the upper end of governor lever (15) links to each other with pull bar (1), the centre is hinged on the sliding sleeve pin (6), the position that speed crank (16) can change pull bar is handled in lower end and speed crank (16) interlock, the control diesel engine speed.Immutable in the course of the work after the pretightening force of speed governing torsion spring (13) is adjusted, have only rotating speed to surpass rated speed after, tension rail (9) just is open.Idle spring (17) and corrector (10) all are contained on the tension rail (9), and its 26S Proteasome Structure and Function is identical with existing RAD speed regulator, and flyball thrust and idle spring equilibrium of forces during idling are to keep the idling steady running.This speed regulator is only controlled idling and maximum speed, and driver control speed crank (16) is directly controlled intermediate speed.
Claims (3)
1, a kind of diesel injection pump mechanical speed governor of being made up of parts such as flyball, flying hammer bracket, speed governing sliding sleeve, governor spring, governor housings is characterized in that:
A. have supporting rod [7] and tension rail [9], supporting rod is connected with the speed governing sliding sleeve, and tension rail and supporting rod have common fulcrum (rest pin [8]),
B. adopt the lower fulcrum structure, promptly tension rail and supporting rod are hinged on the rest pin [8] that is positioned at flyball shaft center line below,
C. governor spring adopts torsion spring [13].
2, lower fulcrum torsional spring type mechanical governor according to claim 1, the spring force point of action that it is characterized in that speed regulator torsion spring [13] wherein above the flyball shaft center line, promptly the spring force point of action to the distance of lower fulcrum greater than the distance of flyball point of action to lower fulcrum
3, lower fulcrum torsional spring type mechanical governor according to claim 1 is characterized in that having a governor lever that is connected with the speed regulator sliding sleeve [15], and forms the maximum-minimum speed governor of three lever lower fulcrum torsion spring structures with tension rail and supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246110 CN2231712Y (en) | 1994-11-25 | 1994-11-25 | Lower fulcrum torsion spring type mechanical governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246110 CN2231712Y (en) | 1994-11-25 | 1994-11-25 | Lower fulcrum torsion spring type mechanical governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2231712Y true CN2231712Y (en) | 1996-07-24 |
Family
ID=33851687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246110 Expired - Fee Related CN2231712Y (en) | 1994-11-25 | 1994-11-25 | Lower fulcrum torsion spring type mechanical governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2231712Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332858A (en) * | 2011-08-04 | 2012-01-25 | 临沂扬子中天机械制造有限公司 | Direct-current motor speed-limiting device for simple glass edge finishing machine |
| CN105082064A (en) * | 2014-05-05 | 2015-11-25 | 北京大风时代科技有限责任公司 | Electromagnetic nail gun |
-
1994
- 1994-11-25 CN CN 94246110 patent/CN2231712Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332858A (en) * | 2011-08-04 | 2012-01-25 | 临沂扬子中天机械制造有限公司 | Direct-current motor speed-limiting device for simple glass edge finishing machine |
| CN105082064A (en) * | 2014-05-05 | 2015-11-25 | 北京大风时代科技有限责任公司 | Electromagnetic nail gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |