CN201944524U - Lubricating system for hydraulic coupler - Google Patents
Lubricating system for hydraulic coupler Download PDFInfo
- Publication number
- CN201944524U CN201944524U CN2011200603072U CN201120060307U CN201944524U CN 201944524 U CN201944524 U CN 201944524U CN 2011200603072 U CN2011200603072 U CN 2011200603072U CN 201120060307 U CN201120060307 U CN 201120060307U CN 201944524 U CN201944524 U CN 201944524U
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- Prior art keywords
- oil pump
- oil
- grease chamber
- pump
- auxiliary
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- 230000001050 lubricating effect Effects 0.000 title abstract description 11
- 239000004519 grease Substances 0.000 claims description 74
- 238000005461 lubrication Methods 0.000 claims description 46
- 239000002828 fuel tank Substances 0.000 claims description 35
- 239000000314 lubricant Substances 0.000 claims description 34
- 238000013016 damping Methods 0.000 claims description 16
- 239000003921 oil Substances 0.000 abstract description 200
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 238000005086 pumping Methods 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101100406487 Drosophila melanogaster Or47a gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010921 in-depth analysis Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a lubricating system for a hydraulic coupler, which comprises an oil tank, a main oil pump and an auxiliary oil pump, wherein the main oil pump is used for pumping lubricating oil in an oil tank into an oil chamber, the oil pressure is built in the oil chamber, the auxiliary oil pump is used for pumping lubricating oil in the oil tank into the oil chamber and maintaining the oil pressure in the oil chamber in a reasonable range, a first check valve is connected between the auxiliary oil pump and the oil chamber, and the first check valve only allows the lubricating oil to flow to the oil chamber from the auxiliary oil pump, wherein the lubricating system also comprises a second check valve, and the second check valve is connected between the main oil pump and the oil chamber and is used for only allowing the lubricating oil to flow to the oil chamber from the main oil pump. According to the system, a part of the lubricating oil pumped by the auxiliary oil pump can be prevented from directly flowing back into the oil tank through the main oil pump, so the reduction of the lubricating oil pressure can be avoided, and further, the oil pressure in the oil chamber can reach the preset range.
Description
Technical field
The utility model relates to the hydraulic couplers field, more particularly, relates to a kind of lubrication system that is used for hydraulic couplers.
Background technique
Hydraulic couplers is to be a kind of nonrigid coupling device of driving medium with liquid, claims fluid coupling again.Hydraulic couplers generally includes pump impeller that is connected with input shaft and the turbine that is connected with output shaft, and this pump impeller and turbine are formed the airtight chamber that permission is flowed as the liquid circulation of driving medium.
When proper functioning, driver (as internal-combustion engine or motor etc.) drives the input shaft rotation, is thrown away by pump impeller and enters turbine with higher speed as the liquid of driving medium, thereby drive the turbine rotation, and then will give output shaft from the energy transfer that driver obtains, realize the transmission of power.
In order to satisfy the motion requirement as the above-mentioned input shaft and the output shaft of solid of rotation, described input shaft and output shaft all must be by bearings, and this bearing can comprise rolling bearing and/or sliding bearing.In being provided with the situation of sliding bearing, described hydraulic couplers also has lubrication system, to be used for providing sufficient lubricating to sliding bearing, guarantees its proper functioning.
Figure 1 shows that the schematic representation of the traditional lubrication system that is used for hydraulic couplers.This traditional lubrication system comprises fuel tank 100, main oil pump 200, auxiliary oil pump 300 and bearing shell (not shown) to be lubricated, wherein, main oil pump 200 is used for the lubricating pump of fuel tank 100 is pressed onto in the grease chamber of bearing shell to be lubricated, thereby guarantees that the oil pressure in this grease chamber is within the reasonable range.Auxiliary oil pump 300 is used for after main oil pump 200 is finished the predetermined pressure of setting up lubricant oil, keep the pressure of lubricant oil in the grease chamber to be within the suitable scope, thereby the sliding bearing of guaranteeing hydraulic couplers obtains lubricated fully reliably, and then hydraulic couplers can be worked normally.
The working procedure of this traditional lubrication system is: start main oil pump 200, finishing the predetermined pressure of setting up lubricant oil, can close main oil pump 200; Normally operation under the lubrication of sliding bearing lubricant oil of predetermined pressure in the grease chamber; Simultaneously, the pressure of lubricant oil is within the zone of reasonableness in the grease chamber in order to keep, and starts auxiliary oil pump 300, and this auxiliary oil pump 300 continues pump pressure lubricant oil to the grease chamber, thereby keeps the lubricant oil in the grease chamber to be within the zone of reasonableness.In addition, also be provided with safety check 400 between auxiliary oil pump 300 and grease chamber, lubricant oil flows into fuel tank by auxiliary oil pump when being used to prevent to start main oil pump.
Yet in practice, inventor of the present utility model finds, after main oil pump 200 is finished the foundation of lubricant oil predetermined pressure and during auxiliary oil pump 300 operations, the pressure of lubricant oil always can not reach the reasonable range level in the grease chamber of sliding bearing to be lubricated.That is to say, main oil pump 200 finish set up lubricating oil pressure after, the auxiliary oil pump operation time can not make that the pressure of lubricant oil reaches normal scope in the grease chamber, thereby the bearing shell that makes the sliding bearing to be lubricated of hydraulic couplers is difficult to form enough lubricant films, cause bearing bush abrasion serious, and the returning-oil temperature of lubricant oil is higher, has a strong impact on the proper functioning of hydraulic couplers.
And; when operating mode is abominable even can cause hydraulic couplers normally to start; even operation; running state is also very unstable and dangerous; need often to shut down maintenance; not only reduce the utilizability and the reliability of equipment largely, also greatly increased maintenance and maintenance cost simultaneously.
Thereby, a kind of technological scheme that can solve the above-mentioned problems in the prior art need be provided.
The model utility content
In order to solve the above-mentioned problems in the prior art, and proposed the lubrication system that is used for hydraulic couplers provided by the utility model, this lubrication system comprises:
Fuel tank, this fuel tank is used to store lubricant oil;
Main oil pump, this main oil pump connects the grease chamber of the sliding bearing of described fuel tank and described hydraulic couplers, and this grease chamber is communicated with described fuel tank by way to cycle oil, and main oil pump is used for lubricating pump is pressed onto described grease chamber, and sets up oil pressure in the grease chamber;
Auxiliary oil pump, this auxiliary oil pump connects the grease chamber of the sliding bearing of described fuel tank and described hydraulic couplers, be used for lubricating pump is pressed onto described grease chamber, and keep the described oil pressure in this grease chamber to be within the reasonable range, be connected with first safety check between described auxiliary oil pump and described grease chamber, this first safety check only allows lubricant oil to flow to described grease chamber from described auxiliary oil pump; Wherein:
Described lubrication system also comprises second safety check, and this second safety check is connected between described main oil pump and the described grease chamber, is used for only allowing lubricant oil to flow to described grease chamber from described main oil pump.
In order to solve the problems of the technologies described above, the present inventor once did multiple trial.Originally, the present inventor thought that the reason that causes auxiliary oil pump can not make oil pressure in the grease chamber reach predetermined zone of reasonableness was that the flow of auxiliary oil pump is too little.Based on this consideration, in practice, once changed the bigger auxiliary oil pump of flow and replace the less auxiliary oil pump of flow, but effect is unsatisfactory.Behind the auxiliary oil pump of having changed big flow, the oil pressure in the grease chamber still can not reach desirable stress level, and the oil film of bearing shell still is difficult to meet the demands.
In-depth analysis research through the present inventor, the present inventor thinks that the main cause that causes auxiliary oil pump can not make oil pressure in the grease chamber reach predetermined zone of reasonableness is not that the flow of auxiliary oil pump is too little, but because has the place of draining in lubrication system.Specifically, for the lubrication system of traditional hydraulic couplers, main oil pump finished set up predetermined oil pressure in the grease chamber at bearing shell after, when starting auxiliary oil pump, the part of the lubricant oil of auxiliary oil pump institute pump pressure can directly flow back in the fuel tank by main oil pump, thereby lubrication pressure is reduced, be difficult to make the oil pressure in the grease chamber to reach predetermined scope.This is the reason place of causing above-mentioned technical problem.
Just be based on the above-mentioned of present inventor and discovering, can design and propose the application's technological scheme.
According to the lubrication system that is used for hydraulic couplers provided by the utility model, between described main oil pump and described grease chamber, be provided with second safety check, this second safety check only allows lubricant oil to flow to described grease chamber from described main oil pump, and does not allow lubricant oil to be back to fuel tank by main oil pump.Therefore, after main oil pump is finished build-up pressure work in the grease chamber and when starting auxiliary oil pump, the part that can prevent the lubricant oil of auxiliary oil pump institute pump pressure directly flow back in the fuel tank by main oil pump, thereby can avoid the reduction of lubrication pressure, and then can make the oil pressure in the grease chamber reach predetermined scope, realize the purpose of this utility model.
Preferably, above-mentioned lubrication system also comprises damping device, and described grease chamber is connected with described fuel tank by this damping device, and perhaps described damping device is arranged in the described way to cycle oil.
Other feature and advantage of the present utility model will partly be described in detail in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with embodiment one of the present utility model, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic representation that is used for traditional lubrication system of hydraulic couplers;
Fig. 2 is the schematic representation according to the lubrication system of mode of execution of the present utility model.
The reference character of critical piece
First safety check 400
Second safety check 500
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
As shown in Figure 2, the lubrication system that is used for hydraulic couplers provided by the utility model comprises:
Described lubrication system also comprises second safety check 500, and this second safety check 500 is connected between described main oil pump 200 and the described grease chamber, is used for only allowing lubricant oil to flow to described grease chamber from described main oil pump 200.
Compare with the traditional lubrication system that is used for hydraulic couplers shown in Figure 1, the main improvements of the technical solution of the utility model are, are provided with second safety check 500 at the downstream position of main oil pump 200.To do detailed description to the technical solution of the utility model below, the improvement with respect to traditional lubrication system that is used for hydraulic couplers is described emphasis to the technical solution of the utility model.
The interior oil pressure of lubrication system is set up in acting as of main oil pump 200, specifically, sets up the oil pressure of sliding bearing intermediate bushing grease chamber to be lubricated, thereby helps the formation of the oil film of bearing shell, to satisfy the motion requirement of sliding bearing.
When main oil pump 200 operations, auxiliary oil pump 300 can not start, and main oil pump 200 is pressed onto the lubricating pump in the fuel tank 100 in the lubrication system, is pumped to specifically in the grease chamber of bearing shell, thereby sets up predetermined oil pressure in this grease chamber.
Preferably, foundation for the ease of oil pressure, this lubrication system also comprises damping device 600, and this damping device 600 is between described main oil pump 200 and auxiliary oil pump 300 and described grease chamber, and perhaps described damping device 600 is between described grease chamber and described fuel tank 100.For example damping device can be throttle valve or throttle orifice etc.
In the situation of damping device 600 between described main oil pump 200 and auxiliary oil pump 300 and described grease chamber, the operation of main oil pump 200 can be set up the oil pressure in the pipeline between main oil pump 200 and the damping device 600, and then can set up the oil pressure in the grease chamber indirectly.In the situation of described damping device 600 between described grease chamber and described fuel tank 100 (being that damping device 600 is arranged in the way to cycle oil), the operation of main oil pump 200 can be set up the oil pressure in the pipeline between main oil pump 200 and the damping device 600, and then can directly set up the oil pressure in the grease chamber.Above-mentioned dual mode can be selected according to concrete application operating mode to utilize.
This grease chamber is communicated with described fuel tank 100 by the way to cycle oil (not shown); thereby form the circulating pressure lubrication passages; thereby the lubricant oil that flows back to fuel tank 100 by way to cycle oil from the grease chamber can either be taken away heat; also the impurity that bearing bush abrasion produces can be taken away, be in good lubricated working state to guarantee sliding bearing.
In addition, downstream position at auxiliary oil pump 300 is provided with first safety check 400, thereby when main oil pump 200 operations, the lubricant oil of 200 pump pressures of main oil pump can not be back in the fuel tank 100 by auxiliary oil pump 300, thereby helps the build-up pressure of main oil pump 200.
The flow of main oil pump 200 is bigger usually, thereby sets up predetermined oil pressure easily in lubrication system.But in order to keep the oil pressure in the lubrication system, if still keep by the bigger main oil pump 200 of flow, then power consumption is bigger on the one hand, be not easy on the other hand the oil pressure in the lubrication system (is for example remained on stable level, if start main oil pump 200 always, because main oil pump 200 is pumped into flow in the grease chamber much larger than the flow that is back to fuel tank from the grease chamber, thereby the oil pressure in the lubrication system is raise fast).
Therefore, in lubrication system, utilize auxiliary oil pump 300 to keep oil pressure usually.Finish at described main oil pump and to set up oil pressure and after out of service in the grease chamber, auxiliary oil pump 300 starts, and this auxiliary oil pump 300 is pressed onto the lubricating pump in the fuel tank 100 in the grease chamber.
And, main oil pump 200 also can with auxiliary oil pump 300 coordinated, to guarantee that the oil pressure in the grease chamber is within the reasonable range, for example (flow is relatively slightly little) main oil pump 200 also can together move with auxiliary oil pump 300, when the oil pressure in the grease chamber surpasses predetermined scope, can make main oil pump 200 out of service, perhaps make auxiliary oil pump 300 out of service; And when the oil pressure in the grease chamber is lower than prespecified range, main oil pump 200 and auxiliary oil pump 300 are moved simultaneously, so that the oil pressure in the grease chamber raises, guarantee that the oil pressure in the grease chamber recovers normal horizontal extent.The oil pressure of setting up in oil pressure in the grease chamber and the lubrication system has corresponding relation, also can utilize the oil pressure level of setting up in the pipeline of sensor lubrication system to control the operation of main oil pump 200 and auxiliary oil pump 300.
In addition, auxiliary oil pump 300 also can be used as emergency bearing oil pump and uses, the time to guarantee the proper functioning of lubrication system in main oil pump 200 faults or maintenance.
In traditional lubrication system shown in Figure 1, as mentioned above,, thereby be difficult to make the oil pressure arrival reasonable range grease chamber in owing to the part of the lubricant oil of 300 pump pressures of auxiliary oil pump can be back in the fuel tank 100 through main oil pump 200.
And in lubrication system provided by the utility model, because the downstream position at main oil pump 200 is provided with second safety check 500, thereby the part that can prevent the lubricant oil of auxiliary oil pump institute pump pressure directly flow back in the fuel tank by main oil pump, thereby can avoid the reduction of lubrication pressure, and then can make the oil pressure in the grease chamber reach predetermined scope.
More than the lubrication system that is used for hydraulic couplers provided by the utility model is described in detail, especially the utility model is with respect to the improvements of traditional lubrication system, omit simultaneously or simplified detailed description, as the description of hydraulic couplers concrete structure other parts of hydraulic couplers or assembly.But, it will be understood by those skilled in the art that on the basis that can realize the utility model purpose each parts and the constituent element of traditional hydraulic couplers and lubrication system thereof can be combined in the technical solution of the utility model.
Need to prove that each the concrete technical characteristics described in above-mentioned embodiment can carry out combination in any by any suitable manner, it falls within the scope disclosed in the utility model equally.In addition, also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Claims (2)
1. the lubrication system that is used for hydraulic couplers, this lubrication system comprises:
Be used to store the fuel tank (100) of lubricant oil;
Main oil pump (200), this main oil pump (200) connects the grease chamber of the sliding bearing of described fuel tank (100) and described hydraulic couplers, and this grease chamber is communicated with described fuel tank (100) by way to cycle oil;
Auxiliary oil pump (300), this auxiliary oil pump 300) connects described fuel tank (100) and described grease chamber, between described auxiliary oil pump (300) and described grease chamber, be connected with first safety check (400) that only allows lubricant oil to flow to described grease chamber from described auxiliary oil pump (300); It is characterized in that:
Described lubrication system also comprises and is connected between described main oil pump (200) and the described grease chamber and only allows lubricant oil to flow to second safety check (500) of described grease chamber from described main oil pump (200).
2. lubrication system according to claim 1, it is characterized in that, this lubrication system also comprises damping device (600), this damping device (600) is positioned between described main oil pump (200) and auxiliary oil pump (300) and the described grease chamber, and perhaps described damping device (600) is arranged in the described way to cycle oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200603072U CN201944524U (en) | 2010-06-24 | 2011-03-09 | Lubricating system for hydraulic coupler |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020248367.2 | 2010-06-24 | ||
| CN201020248367 | 2010-06-24 | ||
| CN2011200603072U CN201944524U (en) | 2010-06-24 | 2011-03-09 | Lubricating system for hydraulic coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944524U true CN201944524U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200603072U Expired - Lifetime CN201944524U (en) | 2010-06-24 | 2011-03-09 | Lubricating system for hydraulic coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944524U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411117A (en) * | 2013-08-12 | 2013-11-27 | 武汉双杰光电科技有限公司 | Multipoint automatic oil supply device for machine equipment |
| CN104696692A (en) * | 2014-09-18 | 2015-06-10 | 中国神华能源股份有限公司 | System for conveying liquid and lubricating system |
| CN104864252A (en) * | 2015-04-15 | 2015-08-26 | 中山市鸿程科研技术服务有限公司 | Draught fan motor lubricating device |
| CN105003811A (en) * | 2015-07-29 | 2015-10-28 | 安徽丹凤集团桐城玻璃纤维有限公司 | Atomized lubricator pipeline for wire drawing machine |
| CN112413115A (en) * | 2020-10-14 | 2021-02-26 | 沈阳鼓风机集团自动控制系统工程有限公司 | Control method and device for auxiliary oil pump |
-
2011
- 2011-03-09 CN CN2011200603072U patent/CN201944524U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411117A (en) * | 2013-08-12 | 2013-11-27 | 武汉双杰光电科技有限公司 | Multipoint automatic oil supply device for machine equipment |
| CN104696692A (en) * | 2014-09-18 | 2015-06-10 | 中国神华能源股份有限公司 | System for conveying liquid and lubricating system |
| CN104864252A (en) * | 2015-04-15 | 2015-08-26 | 中山市鸿程科研技术服务有限公司 | Draught fan motor lubricating device |
| CN105003811A (en) * | 2015-07-29 | 2015-10-28 | 安徽丹凤集团桐城玻璃纤维有限公司 | Atomized lubricator pipeline for wire drawing machine |
| CN112413115A (en) * | 2020-10-14 | 2021-02-26 | 沈阳鼓风机集团自动控制系统工程有限公司 | Control method and device for auxiliary oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
|
| CX01 | Expiry of patent term |