CN104747510A - Self-pressurization type hydraulic oil tank of loading machine - Google Patents
Self-pressurization type hydraulic oil tank of loading machine Download PDFInfo
- Publication number
- CN104747510A CN104747510A CN201510138683.1A CN201510138683A CN104747510A CN 104747510 A CN104747510 A CN 104747510A CN 201510138683 A CN201510138683 A CN 201510138683A CN 104747510 A CN104747510 A CN 104747510A
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- China
- Prior art keywords
- oil tank
- tank body
- oil
- self
- valve
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- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Component Parts Of Construction Machinery (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention discloses a self-pressurization type hydraulic oil tank of a loading machine. The self-pressurization type hydraulic oil tank comprises an oil tank body, an oil outlet pipe and an oil returning pipe, wherein the oil outlet pipe and the oil returning pipe are communicated with the oil tank body. A pressurization filter assembly and a manual unloading valve are arranged at the top of the oil tank body and communicated with air above oil in the oil tank body. The self-pressurization type hydraulic oil tank has the advantages that the problem that a hydraulic system of an open type oil tank is polluted by the external environment is effectively solved, and the problems that an oil adding cover of an existing pressurization oil tank is difficult to open, and a lifting movable arm has potential safety hazards can further be solved; in addition, operation is easy and convenient, and the manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of hydraulic oil container of construction machinery product, particularly a kind of loader auto-pressurizing hydraulic oil container facilitating hydraulic oil container regular maintenance, belongs to technical field of engineering machinery.
Background technique
Loader is a kind of based on the engineering machinery of material handling carrying, and the material of shovel dress mostly is bulk material, and usually with larger dust in scraper process, operating mode is relatively disliked slightly.In order to improve the turbidity test of hydraulic system, reduce the impact of external environment as far as possible, what current domestic loader mainly adopted is pressurized fuel tank, although pressurized fuel tank can solve the impact of external environment on Hydraulic system cleanliness, but put to fuel tank internal during level ground due to swing arm and have larger pressure, if now need replenisher force feed, fuel door is difficult to open, and cannot carry out the filling of hydraulic oil; Swing arm can only be promoted to the highest discharge position, just can open fuel door; But swing arm is promoted to the highest discharge position time, carry out oiling and there is potential safety hazard.
Summary of the invention
The object of this invention is to provide one and effectively can solve swing arm placement level ground, the problem that fuel door difficulty is opened, swing arm must be promoted to the potential safety hazard that the highest discharge position ability servicing fluids force feed is brought by elimination, and facilitates the loader auto-pressurizing hydraulic oil container of hydraulic oil container regular maintenance.
Technological scheme: a kind of loader auto-pressurizing hydraulic oil container, the oil outlet tube comprising oil tank body and be communicated with oil tank body and return tube, described oil tank body top is respectively equipped with supercharging filter assembly and Manual relief valve, described supercharging filter assembly and Manual relief valve respectively with oil tank body inner fluid above air conducting.
After the present invention's assembling, during oil tank body original state, realize being interlinked to the outside in oil tank body by supercharging filter assembly, oil tank body internal pressure is identical with external atmospheric pressure.The moved arm lifting when loader works, the fluid in oil tank body enters hydraulic system of working by oil outlet tube, and the liquid level in oil tank body declines, and air will enter oil tank body inside by supercharging filter assembly.Along with the decline of loading arm, the fluid of hydraulic system is got back in oil tank body by return tube, liquid level in oil tank body rises, air in oil tank body will be compressed, after exceeding the force value set by supercharging filter assembly, air in oil tank body is discharged by supercharging filter assembly, and the gas pressure in oil tank body remains within the pressure range of overload valve setting.After swing arm action several times, after the gas gross of oil tank body inside is constant, gas exchanges no longer will be carried out with the external world in oil tank body inside.Now because oil tank body internal gas pressure is greater than external atmosphere pressure, the external world has how many dust all can not enter in oil tank body like this, thus the turbidity test protecting hydraulic system of high degree.When the supplementary hydraulic oil liquid of needs or carry out other safeguard time, only need open the pressure that Manual relief valve just can discharge oil tank body inside, make oil tank body inner and outer air pressure reach consistent, now fuel door just can easily be opened; After completing the maintenance to oil tank body, only need close Manual relief valve, repeat the lifting of swing arm several times and down maneuver and just can reach effect from supercharging.Present invention efficiently solves the problem that open type oil tank pollutes hydraulic system due to external environment, existing pressurized fuel tank fuel door difficulty can be solved again and open, promote the problem that swing arm exists potential safety hazard, and with simple to operation, low cost of manufacture.
Preference, in order to reduce costs, described supercharging filter assembly comprises filter cleaner, one-way valve and overload valve, and described one-way valve is to the inner conducting of oil tank body, described overload valve is to oil tank body turned on outside, and described one-way valve is communicated with ambient atmosphere by filter cleaner with after overload valve parallel connection.Force value of the present invention can be set by the cracking pressure value of overload valve, convenient and swift.In order to prevent working environment on the impact of hydraulic system further, filter cleaner can be regularly replaced.
Beneficial effect: present invention efficiently solves the problem that open type oil tank pollutes hydraulic system due to external environment, existing pressurized fuel tank fuel door difficulty can be solved again open, promote the problem that swing arm exists potential safety hazard, and with simple to operation, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of loader auto-pressurizing hydraulic oil container, the oil outlet tube 2 comprising oil tank body 1 and be communicated with oil tank body 1 and return tube 3, described oil tank body 1 top is respectively equipped with supercharging filter assembly 4 and Manual relief valve 5, described supercharging filter assembly 4 and Manual relief valve 5 respectively with oil tank body 1 inner fluid above air conducting.Described supercharging filter assembly 4 comprises filter cleaner 41, one-way valve 42 and overload valve 43, described one-way valve 42 is to the inner conducting of oil tank body 1, described overload valve 43, to oil tank body 1 turned on outside, is communicated with ambient atmosphere by filter cleaner 41 after described one-way valve 42 is in parallel with overload valve 43.
After the present invention's assembling, during oil tank body original state, realize being interlinked to the outside in oil tank body 1 by the filter cleaner 41 of supercharging filter assembly 4 and one-way valve 42, oil tank body 1 internal pressure is identical with external atmospheric pressure.The moved arm lifting when loader works, the fluid in oil tank body 1 enters hydraulic system of working by oil outlet tube 2, and liquid level in oil tank body 1 declines, and air is inner by entering oil tank body 1 by the filter cleaner 41 of supercharging filter assembly 4 and one-way valve 42.Along with the decline of loading arm, the fluid of hydraulic system is got back in oil tank body 1 by return tube 3, liquid level in oil tank body 1 rises, air in oil tank body 1 will be compressed, after exceeding the force value set by overload valve 43 of supercharging filter assembly 4, air in oil tank body 1 is discharged by the overload valve 43 of supercharging filter assembly 4, and the gas pressure in oil tank body 1 remains within the pressure range of overload valve 43 setting.After swing arm action several times, after the gas gross of oil tank body 1 inside is constant, gas exchanges no longer will be carried out with the external world in oil tank body 1 inside.Now because oil tank body 1 internal gas pressure is greater than external atmosphere pressure, the external world has how many dust all can not enter in oil tank body 1 like this, thus the turbidity test protecting hydraulic system of high degree.When the supplementary hydraulic oil liquid of needs or carry out other safeguard time, only need open the pressure that Manual relief valve 5 just can discharge oil tank body 1 inside, make oil tank body 1 inner and outer air pressure reach consistent, now fuel door just can easily be opened; After completing the maintenance to oil tank body 1, only need close Manual relief valve 5, repeat the lifting of swing arm several times and down maneuver and just can reach effect from supercharging.Present invention efficiently solves the problem that open type oil tank pollutes hydraulic system due to external environment, existing pressurized fuel tank fuel door difficulty can be solved again and open, promote the problem that swing arm exists potential safety hazard, and with simple to operation, low cost of manufacture.Force value of the present invention can be set by the cracking pressure value of overload valve 43, convenient and swift.In order to prevent working environment on the impact of hydraulic system further, filter cleaner 41 can be regularly replaced.
In addition to the implementation, the present invention can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.
Claims (2)
1. a loader auto-pressurizing hydraulic oil container, the oil outlet tube (2) comprising oil tank body (1) and be communicated with oil tank body (1) and return tube (3), it is characterized in that: described oil tank body (1) top is respectively equipped with supercharging filter assembly (4) and Manual relief valve (5), described supercharging filter assembly (4) and Manual relief valve (5) respectively with oil tank body (1) inner fluid above air conducting.
2. hydraulic-oil of loader-digger case as claimed in claim 1, it is characterized in that: described supercharging filter assembly (4) comprises filter cleaner (41), one-way valve (42) and overload valve (43), described one-way valve (42) is to oil tank body (1) inner conducting, described overload valve (43), to oil tank body (1) turned on outside, is communicated with ambient atmosphere by filter cleaner (41) after described one-way valve (42) is in parallel with overload valve (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138683.1A CN104747510A (en) | 2015-03-27 | 2015-03-27 | Self-pressurization type hydraulic oil tank of loading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138683.1A CN104747510A (en) | 2015-03-27 | 2015-03-27 | Self-pressurization type hydraulic oil tank of loading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747510A true CN104747510A (en) | 2015-07-01 |
Family
ID=53587646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510138683.1A Pending CN104747510A (en) | 2015-03-27 | 2015-03-27 | Self-pressurization type hydraulic oil tank of loading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747510A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020185A (en) * | 2015-07-30 | 2015-11-04 | 上海神舟汽车节能环保有限公司 | Hydraulic oil tank for air power starting system (hydraulic hybrid power system) |
| CN110273896A (en) * | 2019-07-02 | 2019-09-24 | 江苏钧微动力科技有限公司 | A kind of integrated hydraulic number pumping plant |
-
2015
- 2015-03-27 CN CN201510138683.1A patent/CN104747510A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020185A (en) * | 2015-07-30 | 2015-11-04 | 上海神舟汽车节能环保有限公司 | Hydraulic oil tank for air power starting system (hydraulic hybrid power system) |
| CN110273896A (en) * | 2019-07-02 | 2019-09-24 | 江苏钧微动力科技有限公司 | A kind of integrated hydraulic number pumping plant |
| CN110273896B (en) * | 2019-07-02 | 2021-09-24 | 江苏钧微动力科技有限公司 | Integrated hydraulic digital pump station |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |