CN215692248U - Outer circulation filtering system - Google Patents
Outer circulation filtering system Download PDFInfo
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- CN215692248U CN215692248U CN202120518138.6U CN202120518138U CN215692248U CN 215692248 U CN215692248 U CN 215692248U CN 202120518138 U CN202120518138 U CN 202120518138U CN 215692248 U CN215692248 U CN 215692248U
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Abstract
The utility model discloses an external circulation filtering system which comprises an oil inlet pipe, an inlet switching valve, a first connecting oil pipe, an original system filter, a second connecting oil pipe, an outlet switching valve, an oil outlet pipe, a first system external connecting oil pipe, a filter combination and a second system external connecting oil pipe. The utility model can carry out system filtration on hydraulic oil of factory products or old machines in the market, is convenient to install, can be finished by only replacing a matched joint, is simple and convenient, does not need complex operation, effectively filters lubricating oil with more filtered impurities in the original system, and plays a role in protecting the hydraulic elements of the original machine.
Description
Technical Field
The utility model relates to a hydraulic oil tank filtering device, in particular to an external circulation filtering system.
Background
Some machines produced in factories are structurally arranged to use a power take-off gearbox or transmission case as a hydraulic oil tank. The multifunctional lubricating oil is filled in the inner part to meet the requirement. However, the internal running-in process of the initial transmission or the transmission case generates a lot of fine iron chips, which causes contamination of the lubricating oil and damage to the functional hydraulic parts. The filter installed by the new machine can not meet the original use requirement and can not filter the polluted lubricating oil in the system. Aiming at some old machines or old equipment in the market, which are used for a long time, lubricating oil in the system also needs to be comprehensively filtered, and then a new hydraulic element is replaced, so that the original operation of the machines or the equipment is ensured. At the moment, the old machine or the old equipment cannot meet the requirement of external circulation filtration of the system, so that all hydraulic elements and hydraulic oil are replaced, and great waste is generated.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in view of the above problems, an object of the present invention is to provide an external circulation filtration system, which can implement convenient and fast hydraulic filtration outside the system, protect hydraulic components and filter lubricating oil with more impurities.
The technical scheme is as follows: an external circulation filtering system comprises an oil inlet pipe, an inlet switching valve, a first connecting oil pipe, an original system filter, a second connecting oil pipe, an outlet switching valve, an oil outlet pipe, a first system external connecting oil pipe, a filter combination and a second system external connecting oil pipe, wherein the oil inlet pipe is connected with the inlet switching valve, the inlet switching valve is connected with the original system filter through the first connecting oil pipe, the outlet switching valve is connected with the original system filter through the second connecting oil pipe, the oil outlet pipe is connected with the outlet switching valve, and the filter combination is connected with the inlet switching valve through the first system external connecting oil pipe and communicated with the outlet switching valve through the second system external connecting oil pipe.
The inlet switching valve is used for switching the crude oil path system and the external circulation filtering system, and the outlet switching valve is used for switching the crude oil path system and the external circulation filtering system; the filter combination is an external system filter device.
Further, the filter combination comprises at least two filters connected in series.
Preferably, the inlet switching valve is a three-way switching valve.
Preferably, the outlet switching valve is a three-way switching valve.
Further, the oil inlet oil pipe is communicated with the polluted lubricating oil in the original system, and the oil outlet oil pipe is communicated with the clean lubricating oil in the original system.
Has the advantages that: compared with the prior art, the utility model has the advantages that: the utility model can perform system filtration on hydraulic oil of factory products or old machines in the market, is convenient to install, can be completed only by replacing a matched joint, is simple and convenient, does not need complex operation, effectively filters lubricating oil with more impurities in the original system, and plays a role in protecting hydraulic elements of the original machine.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the utility model.
An external circulation filtering system is shown in figure 1 and comprises an oil pipe 1 with an oil inlet, an inlet switching valve 2, a first connecting oil pipe 3, an original system filter 4, a second connecting oil pipe 5, an outlet switching valve 6, an oil pipe 7 with an oil outlet, a first system external connecting oil pipe 8, a filter combination 9 and a second system external connecting oil pipe 10.
One end of an oil inlet pipe 1 is communicated with the polluted lubricating oil in the original system, the other end of the oil inlet pipe is connected with an inlet switching valve 2, and the inlet switching valve 2 is a three-way switching valve. The inlet switching valve 2 is connected with an original system filter 4 through a first connecting oil pipe 3, the outlet switching valve 6 is connected with the original system filter 4 through a second connecting oil pipe 5, the outlet switching valve 6 is a three-way switching valve, one end of an oil outlet oil pipe 7 is connected with the outlet switching valve 6, and the other end of the oil outlet oil pipe is communicated with clean lubricating oil in the original system. The filter combination 9 is connected with the inlet switching valve 2 through a first system external connecting oil pipe 8 and is communicated with the outlet switching valve 6 through a second system external connecting oil pipe 10, and the filter combination 9 at least comprises two filters which are connected in series.
The inlet switching valve is used for switching the crude oil path system and the external circulation filtering system; the first connecting oil pipe is used for connecting the inlet switching valve with the original system filter, and the first connecting oil pipe can also be a straight joint; the connecting oil pipe II is used for connecting the original system filter and the outlet switching valve, and can also be a straight joint; the outlet switching valve is used for switching the crude oil path system and the external circulation filtering system; the first system external connecting oil pipe is used for connecting the inlet switching valve and an external system filter, namely a filter combination; and the second system external connecting oil pipe is used for connecting the external system filter with the outlet switching valve.
The oil pipe of the oil inlet is communicated with internally polluted lubricating oil, the inlet switching valve is used for switching a crude oil path system and an external circulation filtering system, when the switching handle of the inlet switching valve is positioned at an X1 position, the polluted lubricating oil flows into a B1 port from an A1 port of the inlet switching valve, flows onto an original system filter through a connecting oil pipe I, is connected with a B2 port of the outlet switching valve through a connecting oil pipe II, when the switching handle of the outlet switching valve is positioned at an X2 position, the filtered lubricating oil flows out from an A2 port of the outlet switching valve, and the crude oil path circulation filtering is completed; when the switching handle of the inlet switching valve is at the Y1 position, the polluted lubricating oil flows into the T1 port from the A1 port of the inlet switching valve, flows into the filter combination through the first system external connecting oil pipe, and then is connected with the T2 port of the outlet switching valve through the second system external connecting oil pipe, and when the switching handle of the outlet switching valve is at the Y2 position, the filtered lubricating oil flows out from the A2 port of the outlet switching valve, so that the oil path external circulation filtration is completed. When the first connecting oil pipe and the second connecting oil pipe are replaced by the first straight joint and the second straight joint, the system can be directly installed on a new machine, and later maintenance is facilitated.
Claims (5)
1. An external circulation filtration system, comprising: comprises an oil pipe (1) with an oil inlet, an inlet switching valve (2), a first connecting oil pipe (3), an original system filter (4), a second connecting oil pipe (5), an outlet switching valve (6), an oil pipe (7) with an oil outlet, an oil pipe (8) connected with the outside of a first system, a filter combination (9) and an oil pipe (10) connected with the outside of a second system, an oil pipe (1) at an oil inlet is connected with an inlet switching valve (2), the inlet switching valve (2) is connected with an original system filter (4) through a connecting oil pipe I (3), an outlet switching valve (6) is connected with the original system filter (4) through a connecting oil pipe II (5), an oil pipe (7) at an oil outlet is connected with the outlet switching valve (6), the filter assembly (9) is connected with the inlet switching valve (2) through a first system external connecting oil pipe (8) and is communicated with the outlet switching valve (6) through a second system external connecting oil pipe (10).
2. An external circulation filtration system according to claim 1, wherein: the filter assembly (9) comprises at least two filters connected in series.
3. An external circulation filtration system according to claim 1, wherein: the inlet switching valve (2) is a three-way switching valve.
4. An external circulation filtration system according to claim 1, wherein: the outlet switching valve (6) is a three-way switching valve.
5. An external circulation filtration system according to claim 1, wherein: the oil inlet oil pipe (1) is communicated with the polluted lubricating oil in the original system, and the oil outlet oil pipe (7) is communicated with the clean lubricating oil in the original system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120518138.6U CN215692248U (en) | 2021-03-10 | 2021-03-10 | Outer circulation filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120518138.6U CN215692248U (en) | 2021-03-10 | 2021-03-10 | Outer circulation filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215692248U true CN215692248U (en) | 2022-02-01 |
Family
ID=80013095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120518138.6U Active CN215692248U (en) | 2021-03-10 | 2021-03-10 | Outer circulation filtering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215692248U (en) |
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2021
- 2021-03-10 CN CN202120518138.6U patent/CN215692248U/en active Active
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