CN103925086A - Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof - Google Patents
Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof Download PDFInfo
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- CN103925086A CN103925086A CN201410104628.6A CN201410104628A CN103925086A CN 103925086 A CN103925086 A CN 103925086A CN 201410104628 A CN201410104628 A CN 201410104628A CN 103925086 A CN103925086 A CN 103925086A
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Abstract
The invention discloses an oil pump and a speed adjusting mechanism as well as a positive-negative correction mechanism thereof. The speed adjusting mechanism comprises a positive correction support, a negative correction support, a positive correction rod, a positive correction spring, a negative correction rod and a negative correction spring, the positive correction rod is arranged at the upper ends of the positive correction support and the negative correction support, two ends of the positive correction rod are erected on the positive correction support and the negative correction support respectively, the positive correction spring is arranged on the positive correction rod between the positive correction support and the negative correction support, the negative correction rod is arranged at the lower ends of the positive correction support and the negative correction support, two ends of the negative correction rod are erected on the positive correction support and the negative correction support respectively, and the negative correction spring is arranged on the negative correction rod between the positive correction support and the negative correction support. The positive-negative correction mechanism meets requirements on torque reserve of non-road vehicles and is simple in structure and positive-negative correction and adjustment process.
Description
Technical field
The invention belongs to the technical field of the speed regulating mechanism of oil pump, in particular to a kind of check plus minus mechanism of the speed regulating mechanism for oil pump.
Background technique
Along with non-road car is to the toxic emission of its diesel engine and the raising that produces noise requirements, formerly with inline pump diesel engine, can not meet the demands.The mid-1970s, company of German Bosch has developed VE type single-plunger type proportioning pump.It is simple in structure, perfect performance, and volume is little, and quality is light, is subject to very soon whole world diesel engine manufacturer business's favor, has obtained extensive popularization, becomes the maximum multi-cylinder fuel injection pump of lots of production in the world.Subsequently, the patented technology of Japan electric coating company and priority equipment Imported From German EMH Company Bosch of Jack Sai Er company is produced VE type proportioning pump.Compare with in-line arrangement plunger Injection Pump, VE type proportioning pump has many advantages: volume is little, and part is few, and quality is light; Fuel feeding good uniformity, the fuel feeding uniformity of VE type proportioning pump is guaranteed by accuracy of manufacturing completely, contributes to reduce the noise of diesel engine.
Although the use of VE type pump can meet toxic emission and fall low noise requirement, but due to current VEBeng Jinyong negative correction mechanism, the torque reserve that VE pump speed regulating mechanism can not meet non-road car requires: referring to Fig. 8, in figure, curve a is the Engine torque speed curves with positive correction, curve b is without the Engine torque speed curves that has positive correction, in engine operation process, requiring torque point is 186N.m/1600rpm, and power is 36.8kw/2400rpm.When without positive correction, power points moment of torsion is 160N.m, and power is 40KW; While having positive correction, power points moment of torsion is 146N.m, and power is 36.8KW.In the situation that there is no positive correction, be to accomplish moment of torsion 186N.m/1600rpm, power 36.8kw/2500rpm, namely can not meet torque reserve and is: 1.27 requirement; When without positive correction, the torque reserve of oil pump can only be in 1 left and right; In the situation that has positive correction, torque reserve can accomplish that torque reserve is 1.4 left and right.In order to meet torque reserve, require just needs to improve VE pump speed regulating mechanism, on the basis of negative correction, install positive correction additional.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, speed regulating mechanism that a kind of torque reserve that can meet non-road car requires and the check plus minus mechanism of use thereof are provided.
For achieving the above object, the present invention is by the following technical solutions: a kind of check plus minus mechanism is provided, speed regulating mechanism for oil pump, comprise check plus minus support, positive correction bar, positive correction spring, negative correction bar and negative correction spring, described positive correction bar is arranged on the upper end of described check plus minus support, the two ends of described positive correction bar are erected at respectively on described check plus minus support, and described positive correction spring is arranged on the positive correction bar between described check plus minus support; Described negative correction bar is arranged on the lower end of described check plus minus support, and the two ends of described negative correction bar are erected at respectively on described check plus minus support, and described negative correction spring is arranged on the negative correction bar between described check plus minus support.
Further, described positive correction bar and negative correction bar are positioned at the same side of described check plus minus support.
Further, the pretightening force of described positive correction spring is greater than the pretightening force of described negative correction spring.
Further, described speed regulating mechanism comprises speed-regulating rack assembly, and described check plus minus support is resisted against on described speed-regulating rack assembly.
Further, the bar head of described positive correction bar and negative correction bar offsets with described speed-regulating rack assembly respectively, and the bar head of described positive correction bar and negative correction bar all protrudes from described check plus minus support.
Further, the diameter of the bar head of described positive correction bar and negative correction bar is greater than respectively the diameter of described positive correction spring and negative correction spring.
Further, described positive correction bar and negative correction bridge are located in the circular hole on described check plus minus support, and the diameter of the bar head of described positive correction bar and negative correction bar is less than respectively the circular hole aperture of setting up a place of each comfortable described check plus minus support.
Further, the top on described check plus minus support is also provided with correcting bracket hole and correcting bracket axle, and described check plus minus support can be arranged on described speed-regulating rack assembly rotationally by described correcting bracket axle and correcting bracket hole.
The present invention also provides a kind of speed regulating mechanism, comprises speed-regulating rack assembly, comprises any check plus minus mechanism as described above, and described positive and negative adjusting mechanism is arranged on described speed-regulating rack assembly.
The present invention also provides a kind of oil pump, comprises speed regulating mechanism, comprises as any check plus minus mechanism as described above, and described check plus minus mechanism is arranged on described speed regulating mechanism.
The invention has the beneficial effects as follows: check plus minus provided by the invention mechanism also has simple in structure when the torque reserve that meets non-road car requires, check plus minus adjustment process is simple and effectively.
Accompanying drawing explanation
Fig. 1 is the structural representation of check plus minus of the present invention mechanism
Fig. 2 is the matching used speed governing shaft assembly of Zhong Yu check plus minus mechanism of the present invention
Fig. 3 is the structural representation of speed regulating mechanism of the present invention
Fig. 4 is the front view of the speed regulating mechanism of Fig. 3
Fig. 5 is oil mass and the rotation speed relation figure in speed regulating mechanism working procedure of the present invention
Fig. 6 is the structural drawing of the speed-regulating handle in oil pump of the present invention
Fig. 7 is the structural representation of oil pump of the present invention
Fig. 8 is Engine torque rotary speed data plotted curve of the present invention
In figure, 1 is damping spring, and 2 is speed-regulating rack assembly, and 3 is correcting bracket axle, 4 is positive correction spring, and 5 is positive correction bar, and 6 is spacing O type circle, and 7 is negative correction bar, 8 is check plus minus support, and 9 is negative correction spring, and 10 is chock plug, and 11 is speed governing sliding sleeve, 12 is speed governing axle, and 13 is O RunddichtringO, and 14 is speed-regulating handle, and 15 is high speed stop screw, 16 is idle stop screw, and 17 is flyball, and 18 is governor spring, 19 is idle spring, and 20 is idle spring seat, and 21 is fuel-flow control sliding sleeve
Embodiment
For making object and the technological scheme of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing of the embodiment of the present invention, the technological scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skills obtain under the prerequisite without creative work, belongs to the scope of protection of the invention.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the present invention under the identical meaning of the general understanding of those of ordinary skill in field.Should also be understood that such as those terms that define in general dictionary and should be understood to have the consistent meaning of meaning in the context with prior art, unless and definition as here, can not explain by idealized or too formal implication.
The implication of the "and/or" described in the present invention refers to separately individualism or both simultaneous situations include interior.
The implication of " inside and outside " described in the present invention refers to respect to equipment itself, in the direction of sensing equipment inside is, otherwise outside being.
When the implication of " left and right " described in the present invention refers to reader over against accompanying drawing, reader's the left side is a left side, and the right of reader is the right side.
The implication of " connection " described in the present invention can be that the direct connection between parts can be also by the indirect connection of other parts between parts.
" clockwise " described in the present invention and " counterclockwise " and implication refer in oil pump speed regulating mechanism field the implication conventionally adopting, this implication is clockwise and counterclockwise direction shown in accompanying drawing, definition while being the reading comprehension for easy-to-read person, but not specific restriction to equipment mechanism of the present invention.
As shown in Figure 1, check plus minus of the present invention mechanism, speed regulating mechanism for oil pump, comprise check plus minus support 8, positive correction bar 5, positive correction spring 4, negative correction bar 7 and negative correction spring 9, positive correction bar 5 is arranged on the upper end of check plus minus support 8, the two ends of positive correction bar 5 are erected at respectively on check plus minus support 8, and positive correction spring 4 is arranged on the positive correction bar 5 between check plus minus support 8; Negative correction bar 7 is arranged on the lower end of check plus minus support 8, and the two ends of negative correction bar 7 are erected at respectively on check plus minus support 8, and negative correction spring 9 is arranged on the negative correction bar 7 between check plus minus support 8.Positive correction bar 5 and negative correction bar 7 are positioned at the same side of check plus minus support 8.The pretightening force of positive correction spring 4 is greater than the pretightening force of negative correction spring 9.Speed regulating mechanism comprises speed-regulating rack assembly 2, and check plus minus support 8 is resisted against on speed-regulating rack assembly 2.The bar head of positive correction bar 5 and negative correction bar 7 offsets with speed-regulating rack assembly 2 respectively, and the bar head of positive correction bar 5 and negative correction bar 7 all protrudes from check plus minus support 8.The diameter of the bar head of positive correction bar 5 and negative correction bar 7 is greater than respectively the diameter of positive correction spring 4 and negative correction spring 9.Positive correction bar 5 and negative correction bar 7 are erected in the circular hole on check plus minus support 8, and the diameter of the bar head of positive correction bar 5 and negative correction bar 7 is less than respectively the circular hole aperture of setting up a place of each comfortable check plus minus support 8.The top of check plus minus support 8 is also provided with correcting bracket hole and correcting bracket axle 3, and described correcting bracket axle 3 crossed by check plus minus support logical 8 and correcting bracket hole can be arranged on speed-regulating rack assembly 2 rotationally.
As shown in Figure 2, with the matching used speed governing shaft assembly of check plus minus mechanism, comprise chock plug 10, speed governing sliding sleeve 11, speed governing axle 12 and O RunddichtringO 13, O RunddichtringO 13 is sleeved on the tail end of speed governing axle 12, speed governing sliding sleeve 11 is sleeved on the termination portion of speed governing axle 12, and chock plug 10 is arranged on the top of speed governing sliding sleeve 11.When check plus minus mechanism works, the top of chock plug 10 will be against the intermediate portion between positive correction bar 5 and negative correction bar 7 of the check plus minus support 1 of check plus minus mechanism.
As shown in Figure 3 and Figure 4, speed regulating mechanism of the present invention, comprise speed-regulating rack assembly 2 and check plus minus mechanism, check plus minus mechanism is arranged on speed-regulating rack assembly 2, the bar head of positive correction bar 5 and negative correction bar 7 offsets with speed-regulating rack assembly 2 respectively, and the bar head of positive correction bar 5 and negative correction bar 7 all protrudes from check plus minus support 8.This speed regulating mechanism can be applied on oil pump, thereby produces the oil pump that can realize check plus minus process.
Working principle of the present invention is as follows:
As shown in Fig. 5, Fig. 6 and Fig. 7, when speed-regulating handle 14 is during near high speed stop screw 15, at this moment governor spring 18 pretightening forces are maximum.Idle spring seat 20 is moved to tension rail and contacted, and idle spring 19 is forced into limit position, and idle spring 19 is arranged on idle spring seat 20.During declared working condition, because pump speed is high, the axial force that flyball 17 produces is very large, and the pretightening force of positive correction spring 4 is greater than the pretightening force of negative correction spring 9.As shown in Figure 5, rotation speed n is during from na to nb, and under the promotion of speed governing sliding sleeve 11, now negative correction spring 9 strokes are compressed, and check plus minus support 8 be take M as fulcrum, is rotated counterclockwise; O point is moved to the left.L be take as fulcrum in speed-regulating rack mechanism, is rotated counterclockwise, and fuel-flow control sliding sleeve 11 moves right, and oil mass increases gradually.
Rotating speed is during from nc to nd, and flyball 17 centrifugal force continue to increase, and negative correction spring 9 is fully compressed, and negative correction is without stroke, and now positive correction spring 4 strokes are gradually reduced, and check plus minus support 8 be take N as fulcrum, turns clockwise, and O point moves right.L be take as fulcrum in speed-regulating rack mechanism, turns clockwise, and fuel-flow control sliding sleeve 21 is moved to the left, and oil mass increases gradually.
These are only embodiments of the present invention, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1.Yi Zhong check plus minus mechanism, speed regulating mechanism for oil pump, it is characterized in that, comprise check plus minus support, positive correction bar, positive correction spring, negative correction bar and negative correction spring, described positive correction bar is arranged on the upper end of described check plus minus support, the two ends of described positive correction bar are erected at respectively on described check plus minus support, and described positive correction spring is arranged on the positive correction bar between described check plus minus support; Described negative correction bar is arranged on the lower end of described check plus minus support, and the two ends of described negative correction bar are erected at respectively on described check plus minus support, and described negative correction spring is arranged on the negative correction bar between described check plus minus support.
2. a kind of check plus minus according to claim 1 mechanism, is characterized in that, described positive correction bar and negative correction bar are positioned at the same side of described check plus minus support.
3. a kind of check plus minus according to claim 1 mechanism, is characterized in that, the pretightening force of described positive correction spring is greater than the pretightening force of described negative correction spring.
4. according to a kind of check plus minus mechanism described in claim 2 or 3, it is characterized in that, described speed regulating mechanism comprises speed-regulating rack assembly, and described check plus minus support is resisted against on described speed-regulating rack assembly.
5. a kind of check plus minus according to claim 4 mechanism, is characterized in that, the bar head of described positive correction bar and negative correction bar offsets with described speed-regulating rack assembly respectively, and the bar head of described positive correction bar and negative correction bar all protrudes from described check plus minus support.
6. a kind of check plus minus according to claim 5 mechanism, is characterized in that, the diameter of the bar head of described positive correction bar and negative correction bar is greater than respectively the diameter of described positive correction spring and negative correction spring.
7. a kind of check plus minus according to claim 6 mechanism, it is characterized in that, described positive correction bar and negative correction bridge are located in the circular hole on described check plus minus support, and the diameter of the bar head of described positive correction bar and negative correction bar is less than respectively the circular hole aperture of setting up a place of each comfortable described check plus minus support.
8. a kind of check plus minus according to claim 1 mechanism, it is characterized in that, the top of described check plus minus support is also provided with correcting bracket hole and correcting bracket axle, and described check plus minus support can be arranged on described speed-regulating rack assembly rotationally by described correcting bracket axle and correcting bracket hole.
9. a speed regulating mechanism, comprises speed-regulating rack assembly, it is characterized in that, comprises the check plus minus mechanism as described in any one in claim 1-8, and described positive and negative adjusting mechanism is arranged on described speed-regulating rack assembly.
10. an oil pump, comprises speed regulating mechanism, it is characterized in that, comprises the check plus minus mechanism as described in any one in claim 1-8, and described check plus minus mechanism is arranged on described speed regulating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104628.6A CN103925086A (en) | 2014-03-20 | 2014-03-20 | Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104628.6A CN103925086A (en) | 2014-03-20 | 2014-03-20 | Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103925086A true CN103925086A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410104628.6A Pending CN103925086A (en) | 2014-03-20 | 2014-03-20 | Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof |
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| CN (1) | CN103925086A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089448A (en) * | 2016-08-16 | 2016-11-09 | 无锡威孚高科技集团股份有限公司 | Negative correction mechanism for diesel engine of forklift truck high-pressure oil pump speed regulator |
| CN106194439A (en) * | 2016-08-31 | 2016-12-07 | 南京威孚金宁有限公司 | A kind of VE type dispensing pump and speed regulator thereof and a kind of VE type dispensing pump dual spring negative correction mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263714Y (en) * | 1996-04-19 | 1997-10-01 | 无锡威孚股份有限公司 | Oil pump polarization speeder for diesel motor |
| CN2316468Y (en) * | 1997-06-03 | 1999-04-28 | 机械工业部无锡油泵油嘴研究所 | Under-fulcrum torsional spring type speeder with plus-minus corrector |
| CN2480558Y (en) * | 2001-06-05 | 2002-03-06 | 山东康达油泵油嘴有限公司 | Middle support press-spring type mechanical speed regulator |
| JP2005083336A (en) * | 2003-09-11 | 2005-03-31 | Kubota Corp | Diesel engine equipped with governor |
| CN2716522Y (en) * | 2004-08-25 | 2005-08-10 | 成都彭州市泓源工贸产业有限责任公司 | Centrifugal governor of high speed diesel engine for automobile |
| CN201106491Y (en) * | 2007-09-14 | 2008-08-27 | 江西汇尔油泵油嘴有限公司 | Negative correction and supercharging compensator apparatus of fuel injection pump speed regulator |
| CN202578990U (en) * | 2012-03-30 | 2012-12-05 | 浙江标达动力部件有限公司 | Diesel injection pump |
-
2014
- 2014-03-20 CN CN201410104628.6A patent/CN103925086A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263714Y (en) * | 1996-04-19 | 1997-10-01 | 无锡威孚股份有限公司 | Oil pump polarization speeder for diesel motor |
| CN2316468Y (en) * | 1997-06-03 | 1999-04-28 | 机械工业部无锡油泵油嘴研究所 | Under-fulcrum torsional spring type speeder with plus-minus corrector |
| CN2480558Y (en) * | 2001-06-05 | 2002-03-06 | 山东康达油泵油嘴有限公司 | Middle support press-spring type mechanical speed regulator |
| JP2005083336A (en) * | 2003-09-11 | 2005-03-31 | Kubota Corp | Diesel engine equipped with governor |
| CN2716522Y (en) * | 2004-08-25 | 2005-08-10 | 成都彭州市泓源工贸产业有限责任公司 | Centrifugal governor of high speed diesel engine for automobile |
| CN201106491Y (en) * | 2007-09-14 | 2008-08-27 | 江西汇尔油泵油嘴有限公司 | Negative correction and supercharging compensator apparatus of fuel injection pump speed regulator |
| CN202578990U (en) * | 2012-03-30 | 2012-12-05 | 浙江标达动力部件有限公司 | Diesel injection pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089448A (en) * | 2016-08-16 | 2016-11-09 | 无锡威孚高科技集团股份有限公司 | Negative correction mechanism for diesel engine of forklift truck high-pressure oil pump speed regulator |
| CN106089448B (en) * | 2016-08-16 | 2022-05-31 | 无锡威孚高科技集团股份有限公司 | Negative correction mechanism for high-pressure oil pump speed regulator of forklift diesel engine |
| CN106194439A (en) * | 2016-08-31 | 2016-12-07 | 南京威孚金宁有限公司 | A kind of VE type dispensing pump and speed regulator thereof and a kind of VE type dispensing pump dual spring negative correction mechanism |
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Application publication date: 20140716 |