CN202371418U - Variable displacement blade oil pump directly driven by crankshaft flat square - Google Patents
Variable displacement blade oil pump directly driven by crankshaft flat square Download PDFInfo
- Publication number
- CN202371418U CN202371418U CN2011205150331U CN201120515033U CN202371418U CN 202371418 U CN202371418 U CN 202371418U CN 2011205150331 U CN2011205150331 U CN 2011205150331U CN 201120515033 U CN201120515033 U CN 201120515033U CN 202371418 U CN202371418 U CN 202371418U
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- slide block
- mounting hole
- rotor
- pump
- pump housing
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- Withdrawn - After Issue
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Abstract
The utility model discloses a variable displacement blade oil pump directly driven by a crankshaft flat square. A pump cover is arranged on a pump body through pump cover mounting screws; a rotor which is provided with blades and an eccentric blade positioning ring is arranged in a cavity in the pump body; a disk positioning boss on the rotor is in clearance fit with a crankshaft mounting hole in the pump body; a variable sliding block is arranged in the cavity in the pump body; the rotor mounting hole in the variable sliding block is sleeved on the rotor; a sliding block rotary positioning pin penetrates through the sliding block rotary positioning pin mounting hole in the variable sliding block and is arranged in a sliding block rotary positioning pin mounting hole in the pump body and a sliding block rotary positioning pin mounting hole in the pump cover; a variable spring is arranged on one side in the cavity in the pump body; one end of the variable spring is contacted with the bottom part in the cavity in the pump body; and the other end of the variable spring is pressed against a spring pressure block on the variable sliding block. The variable displacement blade oil pump provided by the utility model is directly driven by adopting the crankshaft flat square, the cost of drive components and the risk of loss are reduced, and the safe reliability of the variable displacement blade oil pump is improved.
Description
Technical field
The utility model relates to the lubricating system of IC engine technical field, particularly a kind of change discharge capacity vane machine oil pump that is directly driven by the flat side of bent axle.
Background technique
Existing change discharge capacity vane machine oil pump is made up of the pump housing, pump cover, rotor, slide block, blade, support ring, sliding block spring, rotating dog, rubber rod, rectangular seal bar and drive part.There is the deficiency of the following aspects in said structure:
A, the pump housing do not have with transmission shaft and cooperate the location; But the pump housing is located through setting sleeve and cylinder body, transmission shaft and pump housing indirect addressing, and rotor does not have radial location and does not play the centering effect; Rotor in the oil pump is felt relieved by cooperating with transmission shaft when rotating, and the pump housing does not play the effect of rotor center of rotation;
B, when the transmission shaft transmission not steady; Will cause the rotor transmission not steady, thereby influence the size of throw of eccentric, influence flow performance; And influence blade flexible in rotor vane groove; The wearing and tearing of circle cause abnormal wearing and tearing in blade and positioning ring and the slide block, cause the risk of oil pump performance decrease, Security and reliability and the moment of torsion that increases transmission;
C, existing change discharge capacity vane machine oil pump are non-balancing single action vane pumps; Owing to exported the effect of high pressure, import low pressure; Rotor can secundly the steadily influence of stressed and transmission shaft; Cause the rotor unbalance stress, cause the rotor fatigue cracking easily in the long-term using process even burst, thus the risk that causes serious motor to burn.
E, existing change discharge capacity vane machine oil pump structure transmission shaft are not bent axles, but through middle transmission (like gear, chain, belt etc.), this structure has increased the weight of the cost and the complete machine of part, has reduced the reliability that becomes discharge capacity vane machine oil pump.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency of existing technology and a kind of change discharge capacity vane machine oil pump that is directly driven by the flat side of bent axle is provided.
The technological scheme of the utility model is: a kind of change discharge capacity vane machine oil pump that is directly driven by the flat side of bent axle, it comprises the pump housing, two pump housing setting sleeves, slide block rotation positioning pin, pump cover, eccentric blade support ring, bent axle, blade, sealing support, rectangular seal, rotor, variable spring, pump housing pump cover mounting screw and slide blocks.
Be provided with cavity, crankshaft installed hole, two setting sleeve mounting holes, slide block rotation positioning pin mounting hole, pump cover locating stud mounting hole and oil outlets of being used for installing variable slide block, rotor and sliding block spring in the pump housing; Oil outlet communicates with cavity through oil duct, and slide block rotation positioning pin mounting hole is a blind hole.Two pump housing setting sleeves are installed in respectively in two setting sleeve mounting holes on the pump housing.
Pump cover is provided with crankshaft installed hole, slide block rotation positioning pin mounting hole and pump cover locating stud mounting hole, and slide block rotation positioning pin mounting hole is a blind hole.
The variable slide block is provided with rotor mounting hole, slide block rotation positioning pin mounting hole, spring lock block, oil guide slot and three Sealing mounting grooves; Sealing is supported and the rectangular seal part is installed in respectively in the Sealing mounting groove on the variable slide block; The bottom that is installed in the Sealing mounting groove is supported in sealing, is used for supporting the rectangular seal part.
Rotor is provided with nine equally distributed blade installation grooves, flat square hole, disk positioning boss, and two end faces of rotor are respectively equipped with an eccentric blade positioning ring mounting hole, is respectively equipped with the semi-circle hole of two symmetries on the flat square hole.A blade all is installed in each blade installation groove on rotor; Blade can radially move in the blade installation groove; Two eccentric blade positioning rings are installed in respectively in the eccentric blade positioning ring mounting hole on two end faces of rotor, and eccentric blade positioning ring is used for the lateral movement of limit blade.
Pump cover is installed on the pump housing through the pump cover mounting screw, is provided with the pump cover locating stud between the pump cover and the pump housing, and the pump cover locating stud is installed in the pump cover locating stud mounting hole and the pump cover locating stud mounting hole on the pump cover on the pump housing.
The rotor that blade and eccentric blade positioning ring are installed is installed in the cavity on the pump housing, and Spielpassung is adopted in the crankshaft installed hole on the epitrochanterian disk positioning boss and the pump housing.The variable slide block is installed in the cavity on the pump housing; Rotor mounting hole on the variable slide block is sleeved on the rotor; The slide block rotation positioning pin mounting hole that slide block rotation positioning pin passes on the variable slide block is installed in the slide block rotation positioning pin mounting hole and the slide block rotation positioning pin mounting hole on the pump cover on the pump housing, and the variable slide block can be to swing in the cavity of axle center on the pump housing with slide block rotation positioning pin.Side in the pump housing upper plenum is provided with the variable spring; One end of variable spring contacts with the interior bottom of pump housing upper plenum; The other end withstands on the spring lock block on the variable slide block; Spring lock block can only be in the angle that limits is that fulcrum is swung with the rotation positioning pin, and two limit positions of spring lock block swing are corresponding maximum pump discharge and minimum injection rate respectively.
In the crankshaft installed hole and the crankshaft installed hole on the pump cover of crankshaft installed on the pump housing; The flat side of bent axle has cooperated the effect of transmitting torque with epitrochanterian flat square hole, the semi-circle boss on semi-circle hole on the flat square hole of rotor and the flat side of bent axle adopts Spielpassung to play centering.
The utility model compared with prior art has following characteristics:
1, owing to directly adopt the flat side of bent axle to drive, reduces the cost of driving parts and the risk of loss, improved safe reliability, saved the power consumpiton of motor, reached energy saving purposes.
2, owing to designed positioning boss on the rotor; Therefore under the prerequisite of compact structure; Make the rigidity of originally very thin internal rotor obtain further reinforcement, the transmission shaft mounting hole employing Spielpassung of epitrochanterian in addition positioning boss and the pump housing has limited the deviation of rotating center of rotating center and the transmission shaft of rotor; Under the not high situation of crankshaft rotating precision; Thereby guaranteed the stationarity and the reliability of rotor motion, also guaranteed the throw of eccentric of rotor and variable slide block, thereby made performance be able to guarantee.
3, the semi-circle boss on semi-circle hole on the flat square hole and the flat side of transmission shaft adopts Spielpassung; Played the effect of centering; It is consistent that transmission shaft rotating center and rotor rotating center are guaranteed, can effectively prevent high and low pressure oil not steady to the unbalanced force of rotor and transmission shaft, causes rotor, blade; The scraping of eccentric blade positioning ring and variable slide block; Prevent that rotor receives bent axle to turn round the impact of shake, and cause the cracking of rotor and burst, improved Security, reliability and the working life of oil pump.
Further describe below in conjunction with accompanying drawing and embodiment detailed structure the utility model.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model;
Accompanying drawing 2 is the A-A sectional view in the accompanying drawing 1;
Accompanying drawing 3 is the structural representation of the pump housing;
Accompanying drawing 5 is the structural representation of pump cover 12;
Accompanying drawing 6 is the C-C sectional view in the accompanying drawing 5;
Accompanying drawing 7 is the structural representation of rotor;
Accompanying drawing 8 is the D-D sectional view in the accompanying drawing 7;
Accompanying drawing 9 is the structural representation of variable slide block.
Embodiment
A kind of change discharge capacity vane machine oil pump that is directly driven by the flat side of bent axle, it comprises, and the pump housing 9, two pump housing setting sleeve 3-1,3-2, slide block rotation positioning pin 1, pump cover 12, eccentric blade support ring 5, bent axle 13, blade 6, sealings support 11, rectangular seal 10, rotor 2, variable spring 8, pump housing pump cover mounting screw 4 and slide block 7.
Be provided with the cavity 9-2, crankshaft installed hole 9-1, setting sleeve mounting hole 9-4,9-5, slide block rotation positioning pin mounting hole 9-3, pump cover locating stud mounting hole 9-6 and the oil outlet 9-7 that are used for installing variable slide block 7, rotor 2 and sliding block spring 8 in the pump housing 9; Oil outlet 9-7 communicates with cavity 9-2 through oil duct, and slide block rotation positioning pin mounting hole 9-3 is a blind hole.Two pump housing setting sleeve 3-1,3-2 are installed in respectively in two setting sleeve mounting hole 9-4 on the pump housing, the 9-5.
Pump cover is provided with crankshaft installed hole 12-1, slide block rotation positioning pin mounting hole 12-2 and pump cover locating stud mounting hole 12-3, and slide block rotation positioning pin mounting hole 12-2 is a blind hole.
The rotor 2 that blade 6 and eccentric blade positioning ring 5 are installed is installed in the cavity 9-2 on the pump housing 9, and disk positioning boss 2-3 on the rotor 2 and the crankshaft installed hole 9-1 on the pump housing 9 adopt Spielpassung.Variable slide block 7 is installed in the cavity 9-2 on the pump housing 9; Rotor mounting hole 7-1 on the variable slide block 7 is sleeved on the rotor 2; The slide block rotation positioning pin mounting hole 7-2 that slide block rotation positioning pin 1 passes on the variable slide block 7 is installed in the slide block rotation positioning pin mounting hole 9-3 and the slide block rotation positioning pin mounting hole 12-2 on the pump cover 12 on the pump housing 9, and variable slide block 7 can be to swing in the cavity 9-1 of axle center on the pump housing 9 with slide block rotation positioning pin 1.Side in the pump housing 9 upper plenum 9-1 is provided with variable spring 8; One end of variable spring 8 contacts with the interior bottom of the pump housing 9 upper plenum 9-1; The other end withstands on the spring lock block 7-3 on the variable slide block 7; Spring lock block 7-3 can only be in the angle that limits be that fulcrum is swung with rotation positioning pin 1, and two limit positions of spring lock block 7-3 swing are distinguished corresponding maximum pump discharge and minimum injection rate.
Bent axle 13 is installed in the crankshaft installed hole 9-1 and the crankshaft installed hole 12-1 on the pump cover 12 on the pump housing 9; The flat side of bent axle 13 has cooperated the effect of transmitting torque with the flat square hole 2-2 on the rotor 2, semi-circle hole 2-4 on the rotor 2 flat square hole 2-2 and the semi-circle boss on the bent axle 13 flat sides adopt Spielpassung to play centering.
Claims (1)
1. change discharge capacity vane machine oil pump that directly drives by the flat side of bent axle, it is characterized in that: it comprises the pump housing, two pump housing setting sleeves, slide block rotation positioning pin, pump cover, eccentric blade support ring, bent axle, blade, sealing support, rectangular seal, rotor, variable spring, pump housing pump cover mounting screw and slide blocks;
Be provided with cavity, crankshaft installed hole, two setting sleeve mounting holes, slide block rotation positioning pin mounting hole, pump cover locating stud mounting hole and oil outlets of being used for installing variable slide block, rotor and sliding block spring in the pump housing; Oil outlet communicates with cavity through oil duct, and slide block rotation positioning pin mounting hole is a blind hole; Two pump housing setting sleeves are installed in respectively in two setting sleeve mounting holes on the pump housing;
Pump cover is provided with crankshaft installed hole, slide block rotation positioning pin mounting hole and pump cover locating stud mounting hole, and slide block rotation positioning pin mounting hole is a blind hole;
The variable slide block is provided with rotor mounting hole, slide block rotation positioning pin mounting hole, spring lock block, oil guide slot and three Sealing mounting grooves; Sealing is supported and the rectangular seal part is installed in respectively in the Sealing mounting groove on the variable slide block; The bottom that is installed in the Sealing mounting groove is supported in sealing, is used for supporting the rectangular seal part;
Rotor is provided with nine equally distributed blade installation grooves, flat square hole, disk positioning boss, and two end faces of rotor are respectively equipped with an eccentric blade positioning ring mounting hole, is respectively equipped with the semi-circle hole of two symmetries on the flat square hole; A blade all is installed in each blade installation groove on rotor; Blade can radially move in the blade installation groove; Two eccentric blade positioning rings are installed in respectively in the eccentric blade positioning ring mounting hole on two end faces of rotor, and eccentric blade positioning ring is used for the lateral movement of limit blade;
Pump cover is installed on the pump housing through the pump cover mounting screw, is provided with the pump cover locating stud between the pump cover and the pump housing, and the pump cover locating stud is installed in the pump cover locating stud mounting hole and the pump cover locating stud mounting hole on the pump cover on the pump housing;
The rotor that blade and eccentric blade positioning ring are installed is installed in the cavity on the pump housing, and Spielpassung is adopted in the crankshaft installed hole on the epitrochanterian disk positioning boss and the pump housing; The variable slide block is installed in the cavity on the pump housing; Rotor mounting hole on the variable slide block is sleeved on the rotor; The slide block rotation positioning pin mounting hole that slide block rotation positioning pin passes on the variable slide block is installed in the slide block rotation positioning pin mounting hole and the slide block rotation positioning pin mounting hole on the pump cover on the pump housing, and the variable slide block can be to swing in the cavity of axle center on the pump housing with slide block rotation positioning pin; Side in the pump housing upper plenum is provided with the variable spring; One end of variable spring contacts with the interior bottom of pump housing upper plenum; The other end withstands on the spring lock block on the variable slide block; Spring lock block can only be in the angle that limits is that fulcrum is swung with the rotation positioning pin, and two limit positions of spring lock block swing are corresponding maximum pump discharge and minimum injection rate respectively;
In the crankshaft installed hole and the crankshaft installed hole on the pump cover of crankshaft installed on the pump housing; The flat side of bent axle has cooperated the effect of transmitting torque with epitrochanterian flat square hole, the semi-circle boss on semi-circle hole on the flat square hole of rotor and the flat side of bent axle adopts Spielpassung to play centering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205150331U CN202371418U (en) | 2011-12-12 | 2011-12-12 | Variable displacement blade oil pump directly driven by crankshaft flat square |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205150331U CN202371418U (en) | 2011-12-12 | 2011-12-12 | Variable displacement blade oil pump directly driven by crankshaft flat square |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371418U true CN202371418U (en) | 2012-08-08 |
Family
ID=46595119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205150331U Withdrawn - After Issue CN202371418U (en) | 2011-12-12 | 2011-12-12 | Variable displacement blade oil pump directly driven by crankshaft flat square |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425718A (en) * | 2011-12-12 | 2012-04-25 | 湖南机油泵股份有限公司 | Variable displacement vane oil pump directly driven by crank shaft flat block |
| CN103256093A (en) * | 2013-04-28 | 2013-08-21 | 重庆小康工业集团股份有限公司 | Combustion engine lubricating system |
-
2011
- 2011-12-12 CN CN2011205150331U patent/CN202371418U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425718A (en) * | 2011-12-12 | 2012-04-25 | 湖南机油泵股份有限公司 | Variable displacement vane oil pump directly driven by crank shaft flat block |
| CN102425718B (en) * | 2011-12-12 | 2014-09-03 | 湖南机油泵股份有限公司 | Variable displacement vane oil pump directly driven by crank shaft flat block |
| CN103256093A (en) * | 2013-04-28 | 2013-08-21 | 重庆小康工业集团股份有限公司 | Combustion engine lubricating system |
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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 |
Granted publication date: 20120808 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |