CN103939721A - Positive displacement maneuvering lubrication pump - Google Patents
Positive displacement maneuvering lubrication pump Download PDFInfo
- Publication number
- CN103939721A CN103939721A CN201410205304.1A CN201410205304A CN103939721A CN 103939721 A CN103939721 A CN 103939721A CN 201410205304 A CN201410205304 A CN 201410205304A CN 103939721 A CN103939721 A CN 103939721A
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- plunger
- oil chamber
- positive displacement
- working oil
- valve
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Abstract
The invention discloses a positive displacement maneuvering lubrication pump which comprises a spring, a pump body, a plunger, an oil absorption valve and an oil pressing valve. The plunger is matched with the pump body in a sliding mode, a work oil cavity is defined by the bottom of the plunger and the pump body, the spring is located in the work oil cavity, one end of the spring abuts against the pump body, the other end of the spring abuts against the plunger, a drive mechanism movably connected with a cam mechanism on a gearbox so as to drive the cam mechanism to axially move relative to the pump body is arranged at the top of the plunger, and the oil absorption valve and the oil pressing valve are respectively connected with pipelines of the work oil cavity. When the cam mechanism moves to drive the plunger to axially move so as to enlarge the work oil cavity, the oil absorption valve is opened and oil flows into the work oil cavity from the oil absorption valve; when the cam mechanism moves to drive the plunger to axially move so as to reduce the work oil cavity, the oil pressing valve is opened and the oil in the work oil cavity flows into the gearbox through the oil pressing valve. According to the positive displacement maneuvering lubrication pump, the gearbox can be completely lubricated and the service life of an internal gear of the gearbox is prolonged.
Description
Technical field
The present invention relates to the motor-driven lubricating pump of a kind of positive displacement.
Background technique
At present, in general gear-box, the liquid level height of lubricant oil is 1/3rd of gear-box height, and lubricant oil is deposited in gear-box bottom, in casing, bottom gears can be lubricated, and the gear on top is higher because of position, can not get sufficient lubrication, gear wear is serious, the lost of life.
Gear volume is more and more less, but bearing capacity is increasing.Along with reducing of gear housing, lubricants capacity reduces, and adds that gear rotational speed is more and more higher, and between the flank of tooth, frictional force is increasing, makes oil temperature raise when work, and the fretting wear of the accelerating gear flank of tooth that is bound to, causes scuffing failure.When gear obtains after sufficient lubrication, the fatigue ruption, the scuffing failure etc. that prevent gear are played to inhibitory action, the life-span of gear is increased substantially.
Summary of the invention
Technical problem to be solved by this invention is the defect that overcomes prior art, provides a kind of positive displacement motor-driven lubricating pump, and it can realize the sufficient lubrication to gear-box, improves the life-span of inner gear of the gear box.
In order to solve the problems of the technologies described above, technological scheme of the present invention is: the motor-driven lubricating pump of a kind of positive displacement, it comprises spring, the pump housing, plunger, oil sucting valve and force feed valve, plunger cunning fits on the pump housing, the bottom of plunger and the pump housing surround a working oil chamber, spring is positioned at working oil chamber, and one end of spring is connected on the pump housing, the other end is connected on plunger, the top of plunger has and can be flexibly connected mutually with gear-box overhead cam mechanism to drive it with respect to the axially movable driving mechanism of the pump housing, described oil sucting valve is connected with working oil chamber pipeline respectively with force feed valve, in the time that cam mechanism action drives plunger to move axially working oil chamber is increased, oil sucting valve conducting and fluid enter working oil chamber by oil sucting valve, in the time that cam mechanism action drives plunger to move axially working oil chamber is reduced, the fluid in the conducting of force feed valve and working oil chamber is entered in gear-box by force feed valve.
Further move axially well effect in order to make plunger contact good guarantee with the cam mechanism of gear-box, described driving mechanism is rolling bearing, and this rolling bearing can be rotated to support on the top of plunger.
Further, the top of described plunger is provided with axle, and the end of axle is fitted with cotter pin, and described rolling bearing is arranged on axle.
Further in order to make well plunger skid off the pump housing at pump body inner shaft in process mobile and that avoid plunger moving, on the described pump housing, be fitted with incorgruous axle sleeve, described plunger cunning fits on incorgruous axle sleeve, and the bottom of plunger is provided with the positive stop lug boss matching with the bottom of incorgruous axle sleeve.
Further, in order to limit the stroke that moves axially of plunger, on described plunger, have stroke groove, on described incorgruous axle sleeve, be provided with stroke pin, and the plunger cunning of stroke pin fits in stroke groove.
Adopt after technique scheme, when the eccentric wheel of cam mechanism rotates, plunger moves axially under eccentric wheel and spring action in the pump housing, and plunger moves while making working oil chamber volume become large, working oil chamber internal air pressure is opened oil sucting valve, so fluid has just entered working oil chamber; Plunger moves when the volume of working oil chamber is diminished, the fluid having sucked is just outputed in gear-box and is gone by force feed valve, the motor-driven lubricating pump of this positive displacement is to carry out work by the volume-variation of working oil chamber, and the size of output oil mass is to be decided by the volume-variation size of working oil chamber, after having used the motor-driven lubricating pump of positive displacement, the upper gear that can not get sufficient lubrication in gear-box in some homemade non-standard equipments has obtained lubricated fully, has extended the working life of gear.Particularly open driving mechanism, uses the motor-driven lubricating pump of positive displacement, can be lubricated fully.
Brief description of the drawings
Fig. 1 is the structural representation of the motor-driven lubricating pump of positive displacement of the present invention;
Fig. 2 is the partial schematic diagram of the motor-driven lubricating pump of positive displacement of the present invention;
Fig. 3 is the fundamental diagram of the motor-driven lubricating pump of positive displacement of the present invention.
Embodiment
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below.
As shown in Figure 1, the motor-driven lubricating pump of a kind of positive displacement, it comprises spring 1, the pump housing 2, plunger 6, oil sucting valve 4 and force feed valve 3, plunger 1 is sliding to be fitted on the pump housing 2, the bottom of plunger 1 and the pump housing 2 surround a working oil chamber 21, spring 1 is positioned at working oil chamber 21, and one end of spring 1 is connected on the pump housing 2, the other end is connected on plunger 6, the top of plunger 6 has and can be flexibly connected mutually with gear-box overhead cam mechanism to drive it with respect to the axially movable driving mechanism of the pump housing 2, and oil sucting valve 4 is connected with working oil chamber 21 pipelines respectively with force feed valve 3; In the time that cam mechanism action drives plunger 6 to move axially working oil chamber 21 is increased, oil sucting valve 4 conductings and fluid enter working oil chamber 21 by oil sucting valve 4; In the time that cam mechanism action drives plunger 6 to move axially working oil chamber 21 is reduced, the fluid in 3 conductings of force feed valve and working oil chamber 21 is entered in gear-box by force feed valve 3.
In order to make plunger contact good guarantee with the cam mechanism of gear-box, to move axially well effect driving mechanism be rolling bearing 10, and this rolling bearing 10 can be rotated to support on the top of plunger 6.
The top of plunger 6 is provided with axle 8, and the end of axle 8 is fitted with cotter pin 9, and rolling bearing 10 is arranged on axle 8.
In order to make well plunger 1 move axially and avoid plunger 1 to skid off the pump housing 2 in the pump housing 2 in mobile process, on the pump housing 2, be fitted with incorgruous axle sleeve 5, plunger 1 is sliding to be fitted on incorgruous axle sleeve 5, and the bottom of plunger 1 is provided with the positive stop lug boss 1-1 matching with the bottom of incorgruous axle sleeve 5.
In order to limit the stroke that moves axially of plunger 1, on plunger 1, have stroke groove 1-2, on incorgruous axle sleeve 5, be provided with stroke pin 12, and the plunger cunning of stroke pin 12 fits in stroke groove 1-2.
Working principle of the present invention is as follows:
When the eccentric wheel 13 of cam mechanism rotates, plunger 1 moves axially under eccentric wheel 13 and spring 1 effect in the pump housing 2, plunger 1 moves while making working oil chamber 21 volumes become large, and working oil chamber 21 internal air pressures are opened oil sucting valve 4, so fluid has just entered working oil chamber 21; Plunger 1 moves when the volume of working oil chamber 21 is diminished, the fluid having sucked is just outputed in gear-box and is gone by force feed valve 3, the motor-driven lubricating pump of this positive displacement is to carry out work by the volume-variation of working oil chamber 21, and the size of output oil mass is to be decided by the volume-variation size of working oil chamber 21, after having used the motor-driven lubricating pump of positive displacement, the upper gear that can not get sufficient lubrication in gear-box in some homemade non-standard equipments has obtained lubricated fully, has extended the working life of gear.Particularly open driving mechanism, uses the motor-driven lubricating pump of positive displacement, can be lubricated fully.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect that the present invention is solved further describe; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. the motor-driven lubricating pump of positive displacement, it is characterized in that: it comprises spring (6), the pump housing (2), plunger (1), oil sucting valve (4) and force feed valve (3), plunger (1) is sliding to be fitted on the pump housing (2), the bottom of plunger (1) and the pump housing (2) surround a working oil chamber (21), spring (6) is positioned at working oil chamber (21), and one end of spring (6) is connected on the pump housing (2), the other end is connected on plunger (1), the top of plunger (1) has and can be flexibly connected mutually with gear-box overhead cam mechanism to drive it with respect to the axially movable driving mechanism of the pump housing (2), described oil sucting valve (4) is connected with working oil chamber (21) pipeline respectively with force feed valve (3), in the time that cam mechanism action drives plunger (1) to move axially working oil chamber (21) is increased, oil sucting valve (4) conducting and fluid enter working oil chamber (21) by oil sucting valve (4), in the time that cam mechanism action drives plunger (1) to move axially working oil chamber (21) is reduced, the fluid in (3) conducting of force feed valve and working oil chamber (21) is entered in gear-box by force feed valve (3).
2. the motor-driven lubricating pump of positive displacement according to claim 1, is characterized in that: described driving mechanism is rolling bearing (10), and this rolling bearing (10) can be rotated to support on the top of plunger (1).
3. the motor-driven lubricating pump of positive displacement according to claim 2, it is characterized in that: the top of described plunger (1) is provided with axle (8), and the end of axle (8) is fitted with cotter pin (9), described rolling bearing (10) is arranged on axle (8).
4. the motor-driven lubricating pump of positive displacement according to claim 1 and 2, it is characterized in that: on the described pump housing (2), be fitted with incorgruous axle sleeve (5), described plunger (1) is sliding fits over incorgruous axle sleeve (5) above, and the bottom of plunger (1) is provided with the positive stop lug boss (1-1) matching with the bottom of incorgruous axle sleeve (5).
5. the motor-driven lubricating pump of positive displacement according to claim 4, it is characterized in that: on described plunger (1), have stroke groove (1-2), on described incorgruous axle sleeve (5), be provided with stroke pin (12), and the plunger cunning of stroke pin (12) fits in stroke groove (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205304.1A CN103939721A (en) | 2014-05-15 | 2014-05-15 | Positive displacement maneuvering lubrication pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205304.1A CN103939721A (en) | 2014-05-15 | 2014-05-15 | Positive displacement maneuvering lubrication pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103939721A true CN103939721A (en) | 2014-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410205304.1A Pending CN103939721A (en) | 2014-05-15 | 2014-05-15 | Positive displacement maneuvering lubrication pump |
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| Country | Link |
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| CN (1) | CN103939721A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192782Y (en) * | 1994-05-01 | 1995-03-22 | 中国矿业大学 | Mechanical pressure adjusting device |
| US5984651A (en) * | 1993-07-23 | 1999-11-16 | Itt Automotive Europe, Gmbh | Hydraulic brake system |
| CN101639089A (en) * | 2009-08-10 | 2010-02-03 | 苏州大学 | Hydraulic driving device |
| EP2306012A2 (en) * | 2009-09-17 | 2011-04-06 | Nissin Kogyo Co., Ltd. | Plunger pump |
| CN202318197U (en) * | 2011-11-11 | 2012-07-11 | 崔希珉 | Crank pin disconnector for oil pumping unit |
| CN203051593U (en) * | 2012-12-17 | 2013-07-10 | 宣城市华风机械有限责任公司 | Nitrogen die spring |
-
2014
- 2014-05-15 CN CN201410205304.1A patent/CN103939721A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984651A (en) * | 1993-07-23 | 1999-11-16 | Itt Automotive Europe, Gmbh | Hydraulic brake system |
| CN2192782Y (en) * | 1994-05-01 | 1995-03-22 | 中国矿业大学 | Mechanical pressure adjusting device |
| CN101639089A (en) * | 2009-08-10 | 2010-02-03 | 苏州大学 | Hydraulic driving device |
| EP2306012A2 (en) * | 2009-09-17 | 2011-04-06 | Nissin Kogyo Co., Ltd. | Plunger pump |
| CN202318197U (en) * | 2011-11-11 | 2012-07-11 | 崔希珉 | Crank pin disconnector for oil pumping unit |
| CN203051593U (en) * | 2012-12-17 | 2013-07-10 | 宣城市华风机械有限责任公司 | Nitrogen die spring |
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Application publication date: 20140723 |
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| RJ01 | Rejection of invention patent application after publication |