CN102116325A - Breather of hydraulic oil tank, and construction machine - Google Patents
Breather of hydraulic oil tank, and construction machine Download PDFInfo
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- CN102116325A CN102116325A CN2009102656781A CN200910265678A CN102116325A CN 102116325 A CN102116325 A CN 102116325A CN 2009102656781 A CN2009102656781 A CN 2009102656781A CN 200910265678 A CN200910265678 A CN 200910265678A CN 102116325 A CN102116325 A CN 102116325A
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- resuscitation apparatus
- hydraulic oil
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- opening portion
- pore
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Abstract
The invention provides a breather of a hydraulic oil tank, and a construction machine. The breather of the hydraulic oil tank comprises a breather body, an opening part, a pipeline part and a breather cover body, wherein the opening part is positioned on the upper part of the body; the pipeline part is positioned on the lower part of the body; the cross section area of the opening part is greater than that of the pipeline part; the breather cover body is arranged on the opening part and is provided with an air hole; the air hole is positioned above the height medium line of the side wall of the breather cover body; and an accommodating space capable of accommodating hydraulic oil with a preset volume is formed by the lower part of the height medium line of the breather cover body and the opening part of the breather body. By the breather and the construction machine, backflow hydraulic oil can be prevented from overflowing out of the air hole so as to solve the problem of overflow pollution of the hydraulic oil.
Description
Technical field
The present invention relates to engineering machinery, particularly relate to a kind of resuscitation apparatus and engineering machinery of hydraulic oil container.
Background technique
Engineering machinery comprises fork truck, loader, excavator or the like, is widely used in engineering fields such as harbour, manufacturing shop, building, road, mine.The workpiece of existing engineering machinery.For example scraper bowl of the door frame of fork truck, excavator or the like all adopts hydraulic jack to drive, and Fig. 1 is the form structure plan view of the fork truck in the existing engineering machinery, and as shown in the figure, it carries out the tilt operation of door frame 110 by dump ram 120.
The hydraulic jack of existing engineering machinery all passes through hydraulic system fuel feeding and driving, include the hydraulic oil fuel tank of stores hydraulic pressure oil in the hydraulic system, Fig. 2 is the structural drawing of existing hydraulic oil fuel tank, as shown in the figure, the hydraulic oil fuel tank comprises chamber 201, wherein stores hydraulic oil, is provided with oil purifier 202 under liquid level, oil pump inlet port 203, multi-way valve return opening 204 and commutator return tube 205 are connected under the liquid level by oil pipe, and the fuel tank top is provided with cover plate 206.Resuscitation apparatus 207 is installed in tank cover 206 tops, is connected to fuel tank internal by sebific duct 208.The main function of resuscitation apparatus 207 is to the ventilation of hydraulic pressure fuel tank, produces malleation when fuel tank produces negative pressure and oil return when preventing oil suction, and the variation in pressure of avoiding oil suction and oil return to produce avoids negative pressure and malleation to influence hydraulic work system.
The breathing apparatus body structure is seen shown in Figure 3, and air enters resuscitation apparatus through air passing hole 301, filters the back through filter core 302 then and enters fuel tank by pipeline 303.Wherein, pore 301 is arranged on the bottom of resuscitation apparatus lid 300, relatively near pipeline 303.Because a small amount of fluid in the motion of engineering machinery, hydraulic oil container can flow to the resuscitation apparatus outside by filter core 302 from lower air holes 301 then because inertia backflows into resuscitation apparatus by pipeline 303, causes oil contamination.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of resuscitation apparatus and engineering machinery of hydraulic oil container, can prevent that the hydraulic oil that backflows from overflowing from pore, solves the pollution problem of overflowing of hydraulic oil.
To achieve these goals, the invention provides a kind of resuscitation apparatus of hydraulic oil container, comprising:
The resuscitation apparatus body has one and is positioned at the opening portion on body top and is positioned at the duct portion of body bottom, and the cross-section area of described opening portion is greater than the cross-section area of described duct portion;
The resuscitation apparatus lid is installed in described opening portion;
Described resuscitation apparatus lid has pore, described pore is positioned at the top of the height medium line of described resuscitation apparatus covered body wall, and the height medium line below and the described opening portion of described resuscitation apparatus body of described resuscitation apparatus lid forms the containing space of the hydraulic oil that can hold predetermined volume.
Preferably, in the above-mentioned resuscitation apparatus, described pore is a plurality of, and described pore outside is equipped with filter core.
Preferably, in the above-mentioned resuscitation apparatus, the cross section of described opening portion and the cross section of described duct portion are circle, and described resuscitation apparatus body is horn-like.
Preferably, in the above-mentioned resuscitation apparatus, the described predetermined volume of described containing space is greater than the volume that flows into the hydraulic oil of described resuscitation apparatus when hydraulic oil container moves owing to inertia by described pipeline.
To achieve these goals, the present invention also provides a kind of engineering machinery, has hydraulic oil container, and described hydraulic oil container has resuscitation apparatus, and described resuscitation apparatus comprises:
The resuscitation apparatus body has one and is positioned at the opening portion on body top and is positioned at the duct portion of body bottom, and the cross-section area of described opening portion is greater than the cross-section area of described duct portion;
The resuscitation apparatus lid is installed in described opening portion;
Described resuscitation apparatus lid has pore, described pore is positioned at the top of the height medium line of described resuscitation apparatus covered body wall, and the height medium line below and the described opening portion of described resuscitation apparatus body of described resuscitation apparatus lid forms the containing space of the hydraulic oil that can hold predetermined volume.
Preferably, in the above-mentioned engineering machinery, described pore is a plurality of, and described pore outside is equipped with filter core.
Preferably, in the above-mentioned engineering machinery, the cross section of described opening portion and the cross section of described duct portion are circle, and described resuscitation apparatus body is horn-like.
Preferably, in the above-mentioned engineering machinery, the described predetermined volume of described containing space is greater than the volume that flows into the hydraulic oil of described resuscitation apparatus when hydraulic oil container moves owing to inertia by described pipeline.
Preferably, in the above-mentioned engineering machinery, described engineering machinery is fork truck, loader or excavator.
There is following technique effect at least in the embodiment of the invention:
1) embodiment of the invention is improved respiratory organ structure, pore is moved to top from the bottom of lid, increased the containing space that holds the hydraulic oil that backflows, the a small amount of fluid that backflows like this can temporarily exist in the cavity of lid after entering resuscitation apparatus, and then get back to fuel tank, like this, significantly improved the oil contamination problem of resuscitation apparatus
2) resuscitation apparatus of the embodiment of the invention, pore has moved on to the top of lid height medium line, and the apparent size of resuscitation apparatus lid and resuscitation apparatus body can not change, still can adopt original mould during production, and can exchange fully with existing resuscitation apparatus, therefore the embodiment of the invention has good interchangeability and workability when preventing that hydraulic oil from overflowing pollution, and is with low cost.
Description of drawings
Fig. 1 is the form structure plan view of the fork truck in the existing engineering machinery;
Fig. 2 is the structural drawing of existing hydraulic oil fuel tank;
Fig. 3 is the structural drawing of existing resuscitation apparatus;
The structural drawing of the resuscitation apparatus that Fig. 4 provides for the embodiment of the invention.
Embodiment
For the purpose, technological scheme and the advantage that make the embodiment of the invention is clearer, specific embodiment is described in detail below in conjunction with accompanying drawing.
The structural drawing of the resuscitation apparatus that Fig. 4 provides for the embodiment of the invention, as shown in the figure, the resuscitation apparatus of hydraulic oil container comprises:
Described resuscitation apparatus lid 500 has pore 510, described pore is positioned at the top of the height medium line of described resuscitation apparatus covered body wall, and the height medium line below and the described opening portion of described resuscitation apparatus body of described resuscitation apparatus lid forms the containing space of the hydraulic oil that can hold predetermined volume.
As seen, the embodiment of the invention is improved respiratory organ structure, pore is moved to top from the bottom of lid, increased the containing space that holds the hydraulic oil that backflows, the a small amount of fluid that backflows like this can temporarily exist in the cavity of lid after entering resuscitation apparatus, and then get back to fuel tank, like this, significantly improved the oil contamination problem of resuscitation apparatus.
Wherein, described pore is a plurality of, and described pore outside is equipped with filter core 600, and filter core 600 is circular being close to around lid 500.
The cross section of the cross section of described opening portion 410 and described duct portion 420 is circle, the profile of duct portion 420 is cylindrical, opening portion 410 is made up of greater than the cylindrical of duct portion and a transition part a diameter, so described resuscitation apparatus body is horn-like or funnel-like.
The diameter of described resuscitation apparatus lid cross section is greater than three times (being equivalent to the lid cross-section area is more than 9 times of pipeline cross-section area) of described pipeline cross-sectional diameter, like this, though come very long one section hydraulic oil from pipeline, but also be difficult to fill up the cavity of the medium line below of resuscitation apparatus lid, therefore, the described predetermined volume of described containing space be greater than when hydraulic oil container moves because inertia flows into the volume of the hydraulic oil of described resuscitation apparatus by described pipeline, thereby ensure that the hydraulic oil that backflows can not arrive pore.
As seen, the resuscitation apparatus of the embodiment of the invention, pore has moved on to the top of lid height medium line, and the apparent size of resuscitation apparatus lid and resuscitation apparatus body can not change, still can adopt original mould during production, and can exchange fully, so the embodiment of the invention is when preventing that hydraulic oil from overflowing pollution with existing resuscitation apparatus, have good interchangeability and workability, with low cost.
The embodiment of the invention also provides a kind of engineering machinery, has hydraulic oil container, and described hydraulic oil container has resuscitation apparatus, and described resuscitation apparatus comprises:
The resuscitation apparatus body has one and is positioned at the opening portion on body top and is positioned at the duct portion of body bottom, and the cross-section area of described opening portion is greater than the cross-section area of described duct portion;
The resuscitation apparatus lid is installed in described opening portion;
Described resuscitation apparatus lid has pore, described pore is positioned at the top of the height medium line of described resuscitation apparatus covered body wall, and the height medium line below and the described opening portion of described resuscitation apparatus body of described resuscitation apparatus lid forms the containing space of the hydraulic oil that can hold predetermined volume.
The described predetermined volume of described containing space is greater than the volume that flows into the hydraulic oil of described resuscitation apparatus when hydraulic oil container moves owing to inertia by described pipeline.
Described engineering machinery can be any equipment that needs hydraulic oil container, for example fork truck, loader or excavator.
As from the foregoing, the embodiment of the invention has following advantage:
1) embodiment of the invention is improved respiratory organ structure, pore is moved to top from the bottom of lid, increased the containing space that holds the hydraulic oil that backflows, the a small amount of fluid that backflows like this can temporarily exist in the cavity of lid after entering resuscitation apparatus, and then get back to fuel tank, like this, significantly improved the oil contamination problem of resuscitation apparatus
2) resuscitation apparatus of the embodiment of the invention, pore has moved on to the top of lid height medium line, and the apparent size of resuscitation apparatus lid and resuscitation apparatus body can not change, still can adopt original mould during production, and can exchange fully with existing resuscitation apparatus, therefore the embodiment of the invention has good interchangeability and workability when preventing that hydraulic oil from overflowing pollution, and is with low cost.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the resuscitation apparatus of a hydraulic oil container comprises:
The resuscitation apparatus body has one and is positioned at the opening portion on body top and is positioned at the duct portion of body bottom, and the cross-section area of described opening portion is greater than the cross-section area of described duct portion;
The resuscitation apparatus lid is installed in described opening portion;
It is characterized in that,
Described resuscitation apparatus lid has pore, described pore is positioned at the top of the height medium line of described resuscitation apparatus covered body wall, and the height medium line below and the described opening portion of described resuscitation apparatus body of described resuscitation apparatus lid forms the containing space of the hydraulic oil that can hold predetermined volume.
2. resuscitation apparatus according to claim 1 is characterized in that, described pore is a plurality of, and described pore outside is equipped with filter core.
3. resuscitation apparatus according to claim 2 is characterized in that, the cross section of described opening portion and the cross section of described duct portion are circle, and described resuscitation apparatus body is horn-like.
4. according to claim 1,2 or 3 described resuscitation apparatuss, it is characterized in that, the diameter of described resuscitation apparatus lid cross section is greater than three times of described pipeline cross-sectional diameter, and the described predetermined volume of described containing space is greater than the volume that flows into the hydraulic oil of described resuscitation apparatus when hydraulic oil container moves owing to inertia by described pipeline.
5. an engineering machinery has hydraulic oil container, and described hydraulic oil container has resuscitation apparatus, and described resuscitation apparatus comprises:
The resuscitation apparatus body has one and is positioned at the opening portion on body top and is positioned at the duct portion of body bottom, and the cross-section area of described opening portion is greater than the cross-section area of described duct portion;
The resuscitation apparatus lid is installed in described opening portion;
It is characterized in that,
Described resuscitation apparatus lid has pore, described pore is positioned at the top of the height medium line of described resuscitation apparatus covered body wall, and the height medium line below and the described opening portion of described resuscitation apparatus body of described resuscitation apparatus lid forms the containing space of the hydraulic oil that can hold predetermined volume.
6. engineering machinery according to claim 5 is characterized in that, described pore is a plurality of, and described pore outside is equipped with filter core.
7. engineering machinery according to claim 6 is characterized in that, the cross section of described opening portion and the cross section of described duct portion are circle, and described resuscitation apparatus body is horn-like.
8. according to claim 5,6 or 7 described engineering machinery, it is characterized in that, the diameter of described resuscitation apparatus lid cross section is greater than three times of described pipeline cross-sectional diameter, and the described predetermined volume of described containing space is greater than the volume that flows into the hydraulic oil of described resuscitation apparatus when hydraulic oil container moves owing to inertia by described pipeline.
9. engineering machinery according to claim 8 is characterized in that, described engineering machinery is fork truck, loader or excavator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102656781A CN102116325A (en) | 2009-12-30 | 2009-12-30 | Breather of hydraulic oil tank, and construction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102656781A CN102116325A (en) | 2009-12-30 | 2009-12-30 | Breather of hydraulic oil tank, and construction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102116325A true CN102116325A (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102656781A Pending CN102116325A (en) | 2009-12-30 | 2009-12-30 | Breather of hydraulic oil tank, and construction machine |
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| Country | Link |
|---|---|
| CN (1) | CN102116325A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123794A1 (en) * | 2012-02-23 | 2013-08-29 | 湖南三一智能控制设备有限公司 | Pressure-maintained hydraulic oil tank |
| CN104832501A (en) * | 2015-05-05 | 2015-08-12 | 安徽合力股份有限公司 | Boss ventilation type oil tank breathing device |
| CN107986197A (en) * | 2017-12-07 | 2018-05-04 | 中联重科安徽工业车辆有限公司 | Forklift hydraulic system and there is its cold chain fork truck |
| CN112145943A (en) * | 2020-08-21 | 2020-12-29 | 广东韶钢工程技术有限公司 | Full-automatic telescopic hydraulic oil filling machine |
-
2009
- 2009-12-30 CN CN2009102656781A patent/CN102116325A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123794A1 (en) * | 2012-02-23 | 2013-08-29 | 湖南三一智能控制设备有限公司 | Pressure-maintained hydraulic oil tank |
| CN104832501A (en) * | 2015-05-05 | 2015-08-12 | 安徽合力股份有限公司 | Boss ventilation type oil tank breathing device |
| CN104832501B (en) * | 2015-05-05 | 2017-02-22 | 安徽合力股份有限公司 | Boss ventilation type oil tank breathing device |
| CN107986197A (en) * | 2017-12-07 | 2018-05-04 | 中联重科安徽工业车辆有限公司 | Forklift hydraulic system and there is its cold chain fork truck |
| CN107986197B (en) * | 2017-12-07 | 2020-02-18 | 中联重科安徽工业车辆有限公司 | Forklift hydraulic system and cold chain forklift with same |
| CN112145943A (en) * | 2020-08-21 | 2020-12-29 | 广东韶钢工程技术有限公司 | Full-automatic telescopic hydraulic oil filling machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: DOOSAN INDUSTRIAL VEHICLE (YANTAI) CO., LTD. Free format text: FORMER OWNER: DOOSAN ENGINEERING MACHINERY (CHINA) CO., LTD. Effective date: 20120302 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120302 Address after: 264006 No. 28 Wuzhishan Road, Yantai economic and Technological Development Zone, Shandong, China Applicant after: DOOSAN Industrial Vehicle Yantai Co., Ltd. Address before: 264006 Shandong city of Yantai Province Economic and Technological Development Zone Wuzhi Mountain Road No. 28 Applicant before: Doosan Infracore (China) Co., Ltd. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110706 |