CN201547067U - Two-stage oil return filter device of tunneling machine - Google Patents
Two-stage oil return filter device of tunneling machine Download PDFInfo
- Publication number
- CN201547067U CN201547067U CN2009201806486U CN200920180648U CN201547067U CN 201547067 U CN201547067 U CN 201547067U CN 2009201806486 U CN2009201806486 U CN 2009201806486U CN 200920180648 U CN200920180648 U CN 200920180648U CN 201547067 U CN201547067 U CN 201547067U
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- China
- Prior art keywords
- oil return
- return filter
- pipeline
- filter cleaner
- hydraulic
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an oil return filter structure, in particular to a two-stage oil return filter device of a tunneling machine. An external oil return filter is arranged on a hydraulic system oil return channel of the tunneling machine and connected with an oil tank inner pipeline via a pipeline, and the oil tank inner pipeline is connected to an internal oil return filter mounted in a hydraulic oil tank. The two-stage oil return filter is simple and convenient for replacement, can guarantee cleanness of the hydraulic system and increase reliability thereof.
Description
Technical field
The utility model relates to a kind of oil return cleaner structure, specifically is a kind of two-stage oil return cleaner structure that can offer the development machine hydraulic system.
Background technique
Development machine is in underground work environment very severe, and the hydraulic system oil return filter cleaner of development machine all is a primary structure at present, and is installed in the hydraulic oil container.Because the oil return filter cleaner is an easily damaged parts, and is extremely important to the protection of hydraulic system turbidity test, need often to change, change very inconvenience, need open fuel tank cap and could change.Cause outside foreign material to enter hydraulic oil container during replacing easily and cause systemic contamination, influence the reliability of hydraulic system.
Summary of the invention
The purpose of this utility model provides a kind of novel development machine two-stage oil return filter device, guarantees the hydraulic system turbidity test, changes simple and convenient.
For achieving the above object, the technical solution of the utility model is: a kind of development machine two-stage oil return filter device, comprise the built-in oil return filter cleaner that is arranged on the hydraulic oil container, it is characterized in that: external oil return filter cleaner is set on the development machine hydraulic system oil return circuit, by pipeline in pipeline and the fuel tank, pipeline is received on the built-in oil return filter cleaner that is installed in the hydraulic oil container in the fuel tank again.
Behind the two-stage oil return filtering system that employing the utility model provides, hydraulic oil container designs one-level oil return filter cleaner outward, and the replacement cycle is short, and grade of accuracy is 10 μ.Change simple and conveniently, be difficult for influencing the turbidity test of hydraulic system; Design secondary oil return filter cleaner in hydraulic oil container, the replacement cycle is long, and grade of accuracy is 20 μ, guarantees that return oil pressure is unlikely to too big; When the obstruction of one-level oil return filter cleaner caused the hydraulic oil bypass, another level can also effectively be filtered, the protection hydraulic system.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
A kind of development machine two-stage oil return filter device, comprise the built-in oil return filter cleaner 2 that is arranged on the hydraulic oil container 3, it is characterized in that: external oil return filter cleaner 1 is set on the development machine hydraulic system oil return circuit, by the interior pipeline 4 of pipeline 7 and fuel tank, pipeline 4 is received on the built-in oil return filter cleaner 2 that is installed in the hydraulic oil container 3 in the fuel tank again.
Described external oil return filter cleaner 1 is switched to flange 6 by pipeline 7, flange 6 be welded on that pipeline 4 is connected in hydraulic oil container 3 top tanks, seal by seal ring 5 between the pipeline 4 in flange 6 and the fuel tank.
External oil return filter cleaner 1 is a kind of rotary in-line filter.
The inside of described built-in oil return filter cleaner 2 and external oil return filter cleaner 1 all is parallel with bypass valve.
Specify the connection of oil circuit below in conjunction with Fig. 1.The oil return of development machine hydraulic system is by external oil return filter cleaner 1, be switched to flange 6 by pipeline 7 again, flange 6 be welded on that pipeline 4 is connected in hydraulic oil container 3 top tanks, sealed by seal ring 5 between the pipeline 4 in flange 6 and the fuel tank, pipeline 4 is received on the built-in oil return filter cleaner 2 that is installed in the hydraulic oil container 3 in the fuel tank.
The filter core precision that is contained in the built-in oil return filter cleaner 2 in the hydraulic oil container 3 is 20 μ, and the time of replacing first is 1000 hours, changes once in 2000 hours; The filter core grade of accuracy of external oil return filter cleaner 1 is 10 μ, work first changed in 250 hours after, changed once in 1000 hours.External oil return filter cleaner 1 is a kind of rotary in-line filter, and filter core is changed simple and convenient, and changing can the contaminated liquid pressing system.
When external oil return filter cleaner 1 and built-in oil return filter cleaner 2 any one-level filter cores stop up when causing the hydraulic oil bypass, another level can also effectively be filtered, protection hydraulic system, the working life of effectively improving each hydraulic element on the development machine.
Claims (4)
1. development machine two-stage oil return filter device, comprise the built-in oil return filter cleaner (2) that is arranged on the hydraulic oil container (3), it is characterized in that: external oil return filter cleaner (1) is set on the development machine hydraulic system oil return circuit, by the interior pipeline (4) of pipeline (7) and fuel tank, pipeline (4) is received on the built-in oil return filter cleaner (2) that is installed in the hydraulic oil container (3) in the fuel tank again.
2. development machine two-stage oil return filter device according to claim 1, it is characterized in that: described external oil return filter cleaner (1) is switched to flange (6) by pipeline (7), flange (6) be welded on that pipeline (4) is connected in hydraulic oil container (3) top tank, seal by seal ring (5) between the interior pipeline (4) of flange (6) and fuel tank.
3. development machine two-stage oil return filter device according to claim 1 and 2 is characterized in that: external oil return filter cleaner (1) is a kind of rotary in-line filter.
4. development machine two-stage oil return filter device according to claim 1 and 2 is characterized in that: the inside of described built-in oil return filter cleaner (2) and external oil return filter cleaner (1) all is parallel with bypass valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201806486U CN201547067U (en) | 2009-11-18 | 2009-11-18 | Two-stage oil return filter device of tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201806486U CN201547067U (en) | 2009-11-18 | 2009-11-18 | Two-stage oil return filter device of tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201547067U true CN201547067U (en) | 2010-08-11 |
Family
ID=42602239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201806486U Expired - Lifetime CN201547067U (en) | 2009-11-18 | 2009-11-18 | Two-stage oil return filter device of tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201547067U (en) |
-
2009
- 2009-11-18 CN CN2009201806486U patent/CN201547067U/en not_active Expired - Lifetime
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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: 20100811 |
|
| CX01 | Expiry of patent term |