CN216892607U - A broken oil return structure for excavator - Google Patents
A broken oil return structure for excavator Download PDFInfo
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- CN216892607U CN216892607U CN202122973940.7U CN202122973940U CN216892607U CN 216892607 U CN216892607 U CN 216892607U CN 202122973940 U CN202122973940 U CN 202122973940U CN 216892607 U CN216892607 U CN 216892607U
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- oil return
- main valve
- steel pipe
- oil
- pipeline
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Abstract
The utility model discloses a crushing oil return structure for an excavator, which comprises a main valve and an oil return flow dividing device, wherein the oil return flow dividing device is connected with an RS2 oil port of the main valve through a first pipeline, the oil return flow dividing device is also connected with one end of a crushing oil return steel pipe through a second pipeline, the other end of the crushing oil return steel pipe is connected with an R1 oil port of the main valve, one end of the oil return steel pipe is connected with an R2 oil port of the main valve, the other end of the oil return steel pipe is connected with one end of a check valve, and the other end of the check valve is connected with a lower oil port of a radiator through a third pipeline. Has the beneficial effects that: the oil return steel pipe structure has the advantages of being ingenious in design, reasonable in structure, convenient to use, high in practicability and the like, and being suitable for crushing oil return structures of excavators with different tonnage.
Description
Technical Field
The utility model relates to the technical field of excavator structural components, in particular to a mechanical connection structure of an excavator structural component.
Background
The crushing pipeline is an important part of the hydraulic part of the excavator and is used for the circulation of hydraulic oil when the excavator performs crushing work, and the quality of the hydraulic oil directly influences the working efficiency of the excavator. The traditional broken return oil steel pipe has the problems of heavy weight, more dangerous welding seams, high welding requirement, high cost, large impact caused by water hammer effect, high requirement on structural materials, difficult assembly and the like, and the working efficiency of the excavator is seriously influenced. The oil return block of the old crushing system shown in fig. 1 has a cantilever structure and a water hammer effect, and in order to eliminate the cantilever structure and the water hammer effect and reduce the peak value of an oil return pressure curve converged in a main valve cavity, the crushing oil return system is optimized and modified.
Disclosure of Invention
The utility model aims to provide a crushing oil return structure for an excavator, which overcomes the defects in the prior art.
In order to realize the purpose, the technical scheme of the utility model is as follows: the utility model provides a broken oil return structure for excavator, includes main valve and oil return diverging device, its characterized in that: the oil return shunting device is connected with an oil port of a main valve RS2 of the main valve through a first pipeline, the oil return shunting device is further connected with one end of a broken oil return steel pipe through a second pipeline, the other end of the broken oil return steel pipe is connected with an oil port of a main valve R1 of the main valve, one end of the oil return steel pipe is connected with an oil port of a main valve R2 of the main valve, the other end of the oil return steel pipe is connected with one end of a check valve, and the other end of the check valve is connected with the radiator through a third pipeline.
The utility model discloses a crushing oil return structure for an excavator, which has the beneficial effects that: the oil return steel pipe structure has the advantages of being capable of reducing the weight of the oil return steel pipe, reducing oil leakage risks, reducing the assembly difficulty of assembly workers, having the characteristics of ingenious design, reasonable structure, convenience in use, strong practicability and the like, and being suitable for crushing oil return structures of excavators with different tonnages under crushing working conditions.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a perspective view of the present invention.
FIG. 3 is a schematic view of the structure of the oil return steel pipe of the present invention.
FIG. 4 is a schematic view of a broken oil return steel pipe structure according to the present invention.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The utility model discloses a crushing oil return structure for an excavator, which is different from the prior art in that: including main valve 1 and oil return diverging device 6, its characterized in that: the oil return shunting device 6 is connected with a main valve RS2 oil port 15 of the main valve 1 through a first pipeline 7, the oil return shunting device 6 is further connected with one end of a broken oil return steel pipe 3 through a second pipeline 8, the other end of the broken oil return steel pipe 3 is connected with a main valve R1 oil port 16 of the main valve 1, one end of the oil return steel pipe 2 is connected with a main valve R2 oil port 17 of the main valve 1, the other end of the oil return steel pipe 2 is connected with one end of a check valve 4, and the other end of the check valve 4 is connected with the radiator through a third pipeline 9 between the oil port 5.
In specific implementation, the oil return steel pipe 2 includes two light-duty high-diameter flanges 10, and a first short pipe 11 is arranged between the two high-diameter flanges 10.
In specific implementation, the crushing oil return steel pipe 3 is formed by sequentially connecting a flange 12, a second short pipe 13 and a switching block 14, the switching block 14 is connected with an oil port 16 of a main valve R1, and the flange 12 is connected with the second pipeline 8.
In the specific implementation, two symmetrically distributed clamping grooves 17 are formed in the side wall of the high-diameter flange 10, and are used for lateral assembly and positioning of the high-diameter flange 10.
In specific implementation, the crushed return oil passes through the return oil flow divider, then flows into the main valve from the RS2 port of the main valve and the R1 port of the main valve, and then flows into the check valve through the return oil steel pipe after being merged with other action return oil at the R2 port of the main valve, and finally enters the lower port of the radiator.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the utility model be limited to the specific details set forth herein. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (3)
1. The utility model provides a broken oil return structure for excavator, includes main valve (1) and oil return diverging device (6), its characterized in that: oil return diverging device (6) are connected through main valve RS2 hydraulic fluid port (15) of first pipeline (7) and main valve (1), oil return diverging device (6) still are connected with broken oil return steel pipe (3) one end through second pipeline (8), broken oil return steel pipe (3) other end is connected with main valve R1 hydraulic fluid port (16) of main valve (1), oil return steel pipe (2) one end is connected with main valve R2 hydraulic fluid port (17) of main valve (1), oil return steel pipe (2) other end is connected with check valve (4) one end, under check valve (4) the other end and the radiator between hydraulic fluid port (5) be connected through third pipeline (9).
2. The crushing oil return structure for the excavator according to claim 1, wherein: the oil return steel pipe (2) comprises two light-duty high-diameter flanges (10), and a first short pipe (11) is arranged between the two high-diameter flanges (10).
3. The crushing oil return structure for the excavator according to claim 1, wherein: broken oil return steel pipe (3) connect gradually by flange (12), second nozzle stub (13), switching block (14) and constitute, and switching block (14) are connected with main valve R1 hydraulic fluid port (16), and flange (12) are connected with second pipeline (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122973940.7U CN216892607U (en) | 2021-11-30 | 2021-11-30 | A broken oil return structure for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122973940.7U CN216892607U (en) | 2021-11-30 | 2021-11-30 | A broken oil return structure for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216892607U true CN216892607U (en) | 2022-07-05 |
Family
ID=82203045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122973940.7U Active CN216892607U (en) | 2021-11-30 | 2021-11-30 | A broken oil return structure for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216892607U (en) |
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2021
- 2021-11-30 CN CN202122973940.7U patent/CN216892607U/en active Active
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