CN207526683U - A kind of novel gear type variable oil pump - Google Patents
A kind of novel gear type variable oil pump Download PDFInfo
- Publication number
- CN207526683U CN207526683U CN201721377684.2U CN201721377684U CN207526683U CN 207526683 U CN207526683 U CN 207526683U CN 201721377684 U CN201721377684 U CN 201721377684U CN 207526683 U CN207526683 U CN 207526683U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- gear
- driven gear
- type variable
- piston 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.)
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Abstract
The utility model discloses a kind of gear type variable oil pump, it is characterized in that driving gear and meshed driven gear are equipped in oil pump casing, there are two sliding blocks for being coaxial therewith connection in two end faces of driven gear, one is semilune sliding block, one is cylindrical slide, one side end face of driven shaft to be in contact with it there are one the piston rod of small-scale liquid cylinder pressure, there are one springs for opposite side set, pass through the promotion back and forth of hydraulic cylinder piston rod and spring force, the engaging width between driving gear and driven gear can be adjusted, so as to which the output flow of lubricating oil pump be made to be converted back and forth between flowing full amount and other different flows, to meet different duty requirements.Gear type variable oil pump is the transformation and upgrade to original gear type oil pump and innovation, can not only improve working efficiency, but also can achieve energy-saving and emission reduction purposes.
Description
Technical field
The utility model is related to a kind of novel gear type variable rate pump, more particularly to a kind of tooth as engine oil pump
Wheeled variable pump.
Background technology
Nowadays, environmental pollution and the problems such as energy shortages, are increasingly severe, and auto industry is as energy consumption and environment
The important sources of pollution, influence should not be underestimated.How can maximized energy-saving and emission-reduction, be auto industry be badly in need of solve one
A major issue.
According to " China Gear pump Industry investigation and Analysis of Development Trend report（2015-2021）" research come
See, gear pump have it is small, simple in structure, reliable operation, light-weight, suction capacity is strong, of low cost, anti-oil contamination energy
The strong remarkable advantage of power.Since gear pump is widely used in Hydraulic Power Transmission System, so as to attract a large amount of scholars and technology people
Member carries out in-depth study to it.Such as the optimization in gear parameter and pump body structure, backlash compensation, pocketed oil impact and off-load,
Many aspects such as noise abatement have significant progress, and have the solution of a set of comparative maturity.Only in the change of gear pump
It stagnates in amount problem, does not find a substantive solution always.Control gear pump output flow can only utilize
The mode of shunting solves, and so not only results in the loss without reason of power, and can cause wasting for the energy, no
Can achieve energy-saving and emission reduction purposes, this be it is that we are reluctant to see as a result, and one of limiting gear pump application range it is fatal
Defect.
Invention content
The purpose of this utility model is to provide a kind of improved gear type variable oil pumps, it can overcome in the prior art
Gear type oil pump can not realize the problem of variable.
The technical solution of the utility model is：
A kind of novel gear type variable oil pump, which is characterized in that including two gears being placed in housing, two teeth
It is intermeshed between wheel, the both ends of driven gear are respectively provided with a sliding block and are coaxial therewith connecting, sliding block and driven gear end face
It is in close contact, and with driven gear shaft to movement, driven gear both ends, which are equipped with, adjusts driving device.
Further, the adjusting driving device is made of a small-scale liquid cylinder pressure and a spring, wherein hydraulic cylinder
The range of piston rod is equal to the maximum distance that driven gear axially slides.
Further, the spring initial length should be not less than length and the hydraulic cylinder piston rod of most right section of driven shaft most
The sum of length of big stroke, and its compressible amount will ensure the range more than hydraulic cylinder piston rod.
The beneficial effects of the utility model are：
1. the great advantage of the utility model gear type variable oil pump is exactly the mutual cooperation by hydraulic cylinder and spring,
This technical difficult point of variable can not be realized by solving the wheeled lubricating oil pump of full depth tooth, can meet energy-saving and emission-reduction and accurate control completely
The requirement of system etc.；
2. the discharge capacity of the utility model gear type variable oil pump relationship proportional to the axial displacement of driven gear, i.e.,
Linear relationship, this feature are conducive to the accurate control to pumpage；
3. a hydraulic cylinder adds matching for the adjusting driving device of a spring in the utility model gear type variable oil pump
It puts, space can be saved to the greatest extent, make structure more compact.
Description of the drawings
Attached drawing 1, the general structure schematic diagram of the utility model gear type variable oil pump；
Attached drawing 2, the utility model gear type variable oil pump remove the structure diagram after pump case；
Attached drawing 3, the pump shell structure schematic diagram of the utility model gear type variable oil pump；
Attached drawing 4, the hydraulic cylinder structure schematic diagram of the utility model gear type variable oil pump；
Attached drawing 5, the spring structure schematic diagram of the utility model gear type variable oil pump；
Attached drawing 6, the semilune slide block structure schematic diagram of the utility model gear type variable oil pump；
Attached drawing 7, the driving shaft structure diagram of the utility model gear type variable oil pump；
Attached drawing 8, the driving gear structure diagram of the utility model gear type variable oil pump；
Attached drawing 9, the driven shaft structure diagram of the utility model gear type variable oil pump；
Attached drawing 10, the driven gear structure diagram of the utility model gear type variable oil pump；
In figure：1st, hydraulic cylinder, 2, driven shaft, 3, cylindrical slider, 4, driving shaft, 5, pump case, 6, semilune sliding block, 7,
Spring, 8, driving gear, 9, driven gear, 10, lubricating oil pump oil inlet, 11, lubricating oil pump oil outlet, 12, piston rod, 13,14, liquid
Cylinder pressure hydraulic fluid port, 15, piston.
Specific embodiment
The concrete structure and embodiment of the utility model are further illustrated below in conjunction with attached drawing.
With reference to Fig. 1 to 3, the structure composition of the utility model gear pump with variable capacity includes hydraulic cylinder（1）, spring（7）, it is cylindrical
Sliding block（3）, semilune sliding block（6）, driven shaft（2）, driven gear（9）, driving shaft（4）, driving gear（8）Pump case（5）.It is described
Driving gear（8）And driven gear（9）Intermeshing, driving shaft（4）With driving gear（8）And driven shaft（2）With it is driven
Gear（9）Between belong to interference fit and by being keyed, semilune sliding block（6）And cylindrical slider（3）It is tightly attached to driven tooth
Wheel（9）Both ends of the surface, and and driven gear（9）It is coaxially connected, wherein semilune sliding block（6）And driven shaft（2）Belong to clearance fit,
And by being keyed, cylindrical slider（3）With driven shaft（2）Clearance fit is still fallen within, but the driven shaft for section of keeping right（2）The diameter of axle
More than cylindrical slider（3）Aperture, thereby may be ensured that cylindrical slider（3）, semilune sliding block（6）And driven gear（9）
Moment is all in close contact, hydraulic cylinder（1）Piston rod（12）With driven shaft（2）Left end face contact, and ensure piston rod
（12）And driven shaft（2）With one heart, spring（7）The right side of driven shaft is sleeved on, and ensures spring（7）Side be close to cylindrical cunning
Block（3）, opposite side and driven shaft（2）Right end face to have a certain distance, and the distance is greater than hydraulic cylinder（1）Piston rod
（12）Range.
The hydraulic cylinder（1）, which is characterized in that hydraulic cylinder（1）Piston rod（12）Stroke to be equal to driven gear axial
The maximum distance of slip.
The semilune sliding block（6）, which is characterized in that its diameter is equal to the outer diameter of driven gear, and main body is in round pie,
The side of main body is provided with a circular arc cutaway, whole similar crescent shape, which matches the outer diameter with driving gear,
And keyway there are one being set at the aperture of the semilune sliding block.
The pump case（5）, which is characterized in that pump case（5）It is equipped with oil inlet（10）And oil outlet（11）, and oil inlet
（10）Diameter be more than oil outlet（11）Diameter, with reach reduce gear pump normal work when radial load and oil suction resistance
Purpose.
The spring（7）, which is characterized in that spring（7）Length before deformation will ensure to be more than driven shaft（2）Most right section
Length and hydraulic cylinder（1）Piston rod（12）The sum of length of range and its compressible amount will ensure to be more than hydraulic cylinder
（1）Piston rod（12）Range.
The course of work of the utility model is as follows：
The utility model gear type variable oil pump can realize multivariable process, and the oil mass that when startup needs is big, driving tooth
Wheel（8）And driven gear（9）In full meshing state, with the increase of engine speed, oil drain quantity is more and more, at this time will
Have extra flow output, so when hydraulic cylinder（1）On hydraulic fluid port（14）Oil inlet, hydraulic fluid port（13）It is fuel-displaced, so as to make piston rod
（12）Away from hydraulic cylinder（1）The side movement of bottom, so as to push driven shaft（2）With driven gear（9）, semilune slide
Block（6）, cylindrical slider（3）Together towards piston rod（12）Mobile direction is moved, at this time spring（7）In one compressed
A state, spring force gradually increase, when semilune sliding block（6）Suffered spring force is equal to cylindrical slider（3）Suffered hydraulic pressure
Cylinder（1）Piston rod（12）During to its thrust, driving gear（8）And driven gear（9）Between axial length of action no longer become
Small, it has been in a stable non-state engaged entirely at this time, therefore oil drain quantity reduces, and semilune sliding block（6）Presence
It can to the greatest extent reduce by driving gear（8）And driven gear（9）Between length of action shorten caused by leakage problem；
Work as driving gear on the contrary（8）And driven gear（9）Under non-full meshing state and it is unsatisfactory for the oil mass to lubricating oil pump oil discharge outlet
During demand, hydraulic cylinder（1）Hydraulic fluid port（14）Oil inlet quantity, which reduces, even stops oil inlet, at this moment in spring（7）Under the action of spring force,
Driven shaft（2）With driven gear（9）, semilune sliding block（6）, cylindrical slider（3）And piston rod（12）Together towards close
Hydraulic cylinder（1）The direction movement of bottom, makes driving gear（8）And driven gear（9）Between axial length of action it is elongated, oil extraction
Amount increases.
The basic principle and main feature of the utility model has been shown and described above.The utility model is not by above-mentioned implementation
The limitation of example, the principle of the only invention of above embodiments and description description, in the spirit and model for not departing from the utility model
Under the premise of enclosing, the present invention also has various changes and improvements, these inventions and improvement belong to this claimed reality
With in novel range.
Claims (2)
1. a kind of novel gear type variable oil pump, composition includes two gears being placed in housing, phase between two gears
Mutually engagement, the both ends of driven gear are respectively provided with a sliding block and are coaxial therewith connecting, and sliding block is in close contact with driven gear end face,
And with driven gear shaft to movement, driven gear both ends are set there are one novel adjusting driving device, it is characterised in that：Described
Novel adjusting driving device is by a small-scale liquid cylinder pressure and a spring is mating forms, wherein the range of hydraulic cylinder piston rod
The maximum distance axially slided equal to driven gear.
2. a kind of novel gear type variable oil pump according to claim 1, it is characterised in that：The spring is initial
Length should be not less than the sum of the length of most right section of driven shaft and the length of hydraulic cylinder piston rod range, and its compressible amount will
Ensure the range more than hydraulic cylinder piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721377684.2U CN207526683U (en) | 2017-10-24 | 2017-10-24 | A kind of novel gear type variable oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721377684.2U CN207526683U (en) | 2017-10-24 | 2017-10-24 | A kind of novel gear type variable oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526683U true CN207526683U (en) | 2018-06-22 |
Family
ID=62570614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721377684.2U Expired - Fee Related CN207526683U (en) | 2017-10-24 | 2017-10-24 | A kind of novel gear type variable oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488604A (en) * | 2018-04-11 | 2018-09-04 | 哈尔滨理工大学 | A kind of lubricating oil pump of regulating flow quantity size |
| CN112012924A (en) * | 2020-08-22 | 2020-12-01 | 苏州讯如电子科技有限公司 | Gear type pressure regulating oil pump with harmonic molded lines |
-
2017
- 2017-10-24 CN CN201721377684.2U patent/CN207526683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488604A (en) * | 2018-04-11 | 2018-09-04 | 哈尔滨理工大学 | A kind of lubricating oil pump of regulating flow quantity size |
| CN112012924A (en) * | 2020-08-22 | 2020-12-01 | 苏州讯如电子科技有限公司 | Gear type pressure regulating oil pump with harmonic molded lines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20191024 |