CN204041452U - A kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system - Google Patents
A kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system Download PDFInfo
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- CN204041452U CN204041452U CN201420433770.0U CN201420433770U CN204041452U CN 204041452 U CN204041452 U CN 204041452U CN 201420433770 U CN201420433770 U CN 201420433770U CN 204041452 U CN204041452 U CN 204041452U
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- oil
- low pressure
- sliding bearing
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- high pressure
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Abstract
The utility model discloses a kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system, this system offers oil guide slot and oil guiding hole in relevant position on original intermeshing gear pump sliding bearing, bearing support, utilize pressure difference between bearing film inner high voltage district and low pressure area as driving force, on the one hand by the low pressure oil pocket near the fluid guide gear pump filler opening near oil film zone of high pressure, make fluid can flow into oil film bearings low pressure area by the low pressure oil pocket near gear pump filler opening on the other hand, form self-circulation cooling loop; For the running environment of intermeshing gear pump sliding bearing relative closure, under the prerequisite reducing bearing load carrying capacity not significantly, increase bearing cooling and lubricating oil mass, ensure bearing can not Yin Wendu too high and damage; Simultaneously because cooling and lubricating oil circuit is self-loopa oil circuit, can not damage the axis of original system and radial clearance compensation mechanism, ensure that the original volumetric efficiency of intermeshing gear pump.
Description
Technical field
The utility model belongs to technical field of bearings, particularly relates to a kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system.
Background technique
Intermeshing gear pump because structure is simple, high farm machinery, the engineering machinery etc. of being widely used in of reliable performance, cost performance be as hydraulic power supply.Along with Fluid-transmission technology is gradually to high-pressure trend, speed up, low noiseization development, intermeshing gear pump is more and more higher to bearing requirements, common rolling bearing has been difficult to meet the requirement of intermeshing gear pump to load, life-span, reliability aspect, sliding bearing, gradually at intermeshing gear pump, especially obtains in middle high-pressure intermeshing gear pump and applies widely.
In actual applications, intermeshing gear pump on the one hand, especially a large amount of heats can be produced at sliding bearing during middle high-pressure engaging gear pump operation, on the other hand, this body structure of intermeshing gear pump is quite compact, and requires certain axis or radial clearance compensation mechanism ensures higher volumetric efficiency.Cool so existing intermeshing gear pump often utilizes high-voltage oil cavity fluid to flow into sliding bearing by axial clearance, fluid flows into low pressure oil pocket after taking away heat.Like this, just have to sacrifice certain volumetric efficiency to reach cooling effect.And in order to ensure volumetric efficiency, easily cause again sliding bearing to be in operation due to the too high and damage of losing efficacy of temperature, which greatly limits the working life of sliding bearing in intermeshing gear pump.So by punching to sliding bearing and bearing support or slot, being formed can based on the self-circulation cooling lubrication oil circuit of low pressure oil pocket, and the method solving sliding bearing high temperature failure just seems to have practical meaning in engineering.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, providing a kind of engaging gear Sliding bearing for pump self-loopa to cool oil lubrication system, by carrying out architecture advances to sliding bearing, bearing support, realizing the self-loopa Cooling and Lubricator of sliding bearing.
The purpose of this utility model is achieved through the following technical solutions, a kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system, it comprises sliding bearing and bearing support, between the axle journal and sliding bearing of intermeshing gear pump, there is oil film, sliding bearing has zone of high pressure oil guiding hole and low pressure area oil guiding hole, zone of high pressure oil guiding hole is positioned at the zone of high pressure of oil film bearings, and low pressure area oil guiding hole is positioned at the low pressure area of oil film bearings; Bearing support has zone of high pressure shoe cream room, low pressure area shoe cream room, zone of high pressure oil guide slot, low pressure area oil guide slot, oil outlet and filler opening, zone of high pressure shoe cream room communicates with zone of high pressure oil guiding hole on sliding bearing, low pressure area shoe cream room communicates with low pressure area oil guiding hole, zone of high pressure shoe cream room and low pressure area shoe cream room all contact with sliding bearing, zone of high pressure oil guide slot and oil outlet communicate, low pressure area oil guide slot and filler opening communicate, and oil outlet and filler opening all communicate with the low pressure oil pocket of intermeshing gear pump.
Further, described zone of high pressure shoe cream room, low pressure area shoe cream room are arcuate structure.
On sliding bearing, zone of high pressure oil guiding hole and low pressure area oil guiding hole are one or more, and multiple zone of high pressure oil guiding hole communicates with zone of high pressure shoe cream room, and multiple low pressure areas oil guiding hole communicates with low pressure area shoe cream room.
The beneficial effects of the utility model are:
1, self-loopa cooling is adopted to sliding bearing, ensure that a certain amount of low temperature fluid is by sliding bearing lubricating face, avoid that bearing surface temperature is too high causes bearing wear to lose efficacy, simultaneously for sliding bearing provides lubrication, raising bearing working life;
2, compensate for the deficiency that existing intermeshing gear pump utilizes high-voltage oil cavity fluid to cool sliding bearing, make intermeshing gear pump still can keep a certain amount of cooling oil under very high volumetric efficiency.
Accompanying drawing explanation
Fig. 1 is self-loopa cooling oil lubrication system schematic diagram;
Fig. 2 is crescent gear pump schematic diagram of mechanism;
Fig. 3 is bearing support front view;
Fig. 4 is bearing support left view;
Fig. 5 is bearing support A-A sectional view;
Fig. 6 is sliding bearing sketch;
In figure, thrust plate 1, bearing support 2, gear shaft 3, ring gear 4, sliding bearing 5, zone of high pressure shoe cream room 6, low pressure area shoe cream room 7, zone of high pressure oil guide slot 8, low pressure area oil guide slot 9, oil outlet 10, filler opening 11, zone of high pressure oil guiding hole 12, low pressure area oil guiding hole 13, low pressure oil pocket 14, gear pump filler opening 15.
Embodiment
Below in conjunction with embodiment shown in accompanying drawing, the utility model is described in further detail.
The utility model engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system, comprise sliding bearing 5 and bearing support 2, between the axle journal and sliding bearing 5 of intermeshing gear pump, there is oil film bearings, oil film bearings mainly plays carrying effect, oil film bearings can generate high low pressure region at corresponding position, high nip pressures is far above barometric pressure, and low pressure area pressure is generally less than barometric pressure; Gear pump low pressure oil pocket 14 communicates with gear pump filler opening 15, and pressure is generally close to barometric pressure.Sliding bearing 5 has zone of high pressure oil guiding hole 12 and low pressure area oil guiding hole 13, zone of high pressure oil guiding hole 12 is positioned at the zone of high pressure of oil film bearings, and low pressure area oil guiding hole 13 is positioned at the low pressure area of oil film bearings; Bearing support 2 has zone of high pressure shoe cream room 6, low pressure area shoe cream room 7, zone of high pressure oil guide slot 8, low pressure area oil guide slot 9, oil outlet 10 and filler opening 11; Zone of high pressure shoe cream room 6 communicates with zone of high pressure oil guiding hole 12 on sliding bearing 5, low pressure area shoe cream room 7 communicates with low pressure area oil guiding hole 13, zone of high pressure shoe cream room 6 and low pressure area shoe cream room 7 all contact with sliding bearing 5, zone of high pressure oil guide slot 8 and oil outlet 10 communicate, low pressure area oil guide slot 9 and filler opening 11 communicate, and oil outlet 10 and filler opening 11 all communicate with the low pressure oil pocket 14 of intermeshing gear pump; Owing to there being the existence of pressure difference, circulation loop as shown in Figure 1 will be formed.In addition, because gear pump low pressure oil pocket 14 is near gear pump filler opening 15, so heat can be pulled away in time, thus keep lower oil temperature, like this, pass through oil circulation, just can ensure constantly have the fluid of lower temperature to enter oil film bearings, take away heat, make sliding bearing 5 temperature unlikely too high, reach self-loopa cooling effect, circulation fluid can provide lubrication for sliding bearing 5 again simultaneously.
Zone of high pressure shoe cream room 6 and low pressure area shoe cream room 7 are designed to arcuate structure, its central angle scope ensures that sliding bearing oil guiding hole circumference spatial position can change within the specific limits, makes zone of high pressure oil guiding hole 12 and low pressure area oil guiding hole 13 on sliding bearing 5 can do certain adjustment according to the change of oil film bearings high low pressure regional location.
As shown in Figure 2, for certain crescent gear pump schematic diagram of mechanism, this crescent gear pump relies on gear shaft 3 and ring gear 4 to engage each other in the pump housing, the pump housing is divided into oil sucting cavity and pumping cavity two independent sectors, crescent gear pump in the running, gear shaft 3 drives ring gear 4 to rotate, and the rotary motion in oil sucting cavity makes oil sucting cavity volume increase, and forms low pressure oil pocket 14 and fluid is flow to.The fluid be inhaled into is full of each teeth portion space of gear, brings pumping cavity into, and gear continues in engagement process, and in the place entering gears meshing, inter-tooth volume reduces gradually, forms hyperbaric chamber, and discharges via the force feed mouth of crescent gear pump.Whole service process mesohigh chamber is provided respectively axially by thrust plate 1 and swing link and radial clearance compensates to ensure volumetric efficiency, and the oil pressure of low pressure oil pocket 14 generally can not be very high, close to barometric pressure.After the utility model transformation, bearing support oil channel structures as seen in figures 3-6, in normal course of operation, the low temperature fluid of the low pressure oil pocket 14 li of intermeshing gear pump is via filler opening 11, low pressure area oil guide slot 9, low pressure area shoe cream room 7, the low pressure area of oil film bearings is entered finally by low pressure area oil guiding hole 13, the zone of high pressure of oil film bearings is flowed into after taking away sliding bearing lubricating face heat, by zone of high pressure oil guiding hole 12 through zone of high pressure shoe cream room 6, zone of high pressure oil guide slot 8, oil outlet 10, again get back to the low pressure oil pocket 14 of intermeshing gear pump, complete self-loopa cooling, and lubrication is provided.
It should be noted that, above-mentioned example is mainly for current Application comparison self oiling bearing widely in intermeshing gear pump, intermeshing gear pump can adopt metal bearing equally, but an oil guide slot only offered by common metal bearing in periphery, and on bearing, two oil guiding holes are oil inlet hole.Similar structure of modification is carried out to metal bearing, the self-loopa Cooling and Lubricator of sliding bearing can be realized equally.
Above-mentioned is can understand for ease of those skilled in the art and apply the utility model to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the utility model is not limited to embodiment here, and those skilled in the art, according to announcement of the present utility model, do not depart from improvement that the utility model category makes and amendment all should within protection domain of the present utility model.
Claims (3)
1. an engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system, it comprises sliding bearing (5) and bearing support (2), between the axle journal and sliding bearing (5) of intermeshing gear pump, there is oil film, it is characterized in that, sliding bearing (5) has zone of high pressure oil guiding hole (12) and low pressure area oil guiding hole (13), zone of high pressure oil guiding hole (12) is positioned at the zone of high pressure of oil film bearings, and low pressure area oil guiding hole (13) is positioned at the low pressure area of oil film bearings, bearing support (2) has zone of high pressure shoe cream room (6), low pressure area shoe cream room (7), zone of high pressure oil guide slot (8), low pressure area oil guide slot (9), oil outlet (10) and filler opening (11), zone of high pressure shoe cream room (6) communicates with upper zone of high pressure oil guiding hole (12) of sliding bearing (5), low pressure area shoe cream room (7) communicates with low pressure area oil guiding hole (13), zone of high pressure shoe cream room (6) and low pressure area shoe cream room (7) all contact with sliding bearing (5), zone of high pressure oil guide slot (8) and oil outlet (10) communicate, low pressure area oil guide slot (9) and filler opening (11) communicate, oil outlet (10) and filler opening (11) all communicate with the low pressure oil pocket (14) of intermeshing gear pump.
2. the self-loopa of engaging gear Sliding bearing for pump cools oil lubrication system according to claim 1, and it is characterized in that, described zone of high pressure shoe cream room (6), low pressure area shoe cream room (7) are arcuate structure.
3. the self-loopa of engaging gear Sliding bearing for pump cools oil lubrication system according to claim 1, it is characterized in that, upper zone of high pressure oil guiding hole (12) of described sliding bearing (5) and low pressure area oil guiding hole (13) are for multiple, multiple zone of high pressure oil guiding hole (12) communicate with zone of high pressure shoe cream room (6), and multiple low pressure areas oil guiding hole (13) communicate with low pressure area shoe cream room (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433770.0U CN204041452U (en) | 2014-08-03 | 2014-08-03 | A kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420433770.0U CN204041452U (en) | 2014-08-03 | 2014-08-03 | A kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041452U true CN204041452U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420433770.0U Withdrawn - After Issue CN204041452U (en) | 2014-08-03 | 2014-08-03 | A kind of engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system |
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| Country | Link |
|---|---|
| CN (1) | CN204041452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165139A (en) * | 2014-08-03 | 2014-11-26 | 浙江大学 | Self-circulating cooling oil lubrication system for sliding bearing for meshing gear pump |
| CN105697539A (en) * | 2016-04-08 | 2016-06-22 | 罗显平 | Thrust bearings |
-
2014
- 2014-08-03 CN CN201420433770.0U patent/CN204041452U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165139A (en) * | 2014-08-03 | 2014-11-26 | 浙江大学 | Self-circulating cooling oil lubrication system for sliding bearing for meshing gear pump |
| CN104165139B (en) * | 2014-08-03 | 2016-04-20 | 浙江大学 | Engaging gear Sliding bearing for pump self-loopa cooling oil lubrication system |
| CN105697539A (en) * | 2016-04-08 | 2016-06-22 | 罗显平 | Thrust bearings |
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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: 20141224 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |