CN202646198U - Oil path system of main oil cylinder for pipe-bending machine - Google Patents
Oil path system of main oil cylinder for pipe-bending machine Download PDFInfo
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- CN202646198U CN202646198U CN 201220301817 CN201220301817U CN202646198U CN 202646198 U CN202646198 U CN 202646198U CN 201220301817 CN201220301817 CN 201220301817 CN 201220301817 U CN201220301817 U CN 201220301817U CN 202646198 U CN202646198 U CN 202646198U
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Abstract
The utility model discloses an oil path system of a main oil cylinder for a pipe-bending machine. The oil path system of the main oil cylinder comprises a main oil cylinder, wherein the main oil cylinder comprises a cylinder barrel, and a first piston and a second piston which are arranged in the cylinder barrel in a sliding mode; the first piston and the second piston are connected by a connecting rod; the first piston is close to the head of the main oil cylinder; the first piston is connected with a piston rod which extends out of the main oil cylinder; the oil path system of the main oil cylinder also comprises a first contraction force-applying pipeline communicated with a chamber between the first piston and the second piston, a second contraction force-applying pipeline communicated with a chamber between the first piston and the head of the cylinder barrel, an extension force-applying pipeline communicated with a chamber between the first piston and the second piston, an oil pump and three four-way solenoid valves; the oil pump is communicated with oil supply ports of the three four-way solenoid valves; the first contraction force-applying pipeline and the second contraction force-applying pipeline are communicated with contraction force-applying ports of the three four-way solenoid valves; the extension force-applying pipeline is communicated with the contraction force-applying ports of the three four-way solenoid valves; and overflow ports of the three four-way solenoid valves are communicated with an overflow bucket. With the adoption of the oil path system of the main oil cylinder, pipe-bending force of a large-scale oil cylinder pipe-bending machine can be met, and the bending speed is high, so that the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of oil-way system, refers to especially a kind of tube bender master cylinder oil-way system.
Background technique
General Large Oil bending pipe machine is owing to need bend pipe power large, and therefore then volume is large could satisfy its bend pipe power for supporting master cylinder, and like this so that the volume of complete machine just seems too fat to move huge, and it is slow to move back curved speed, restricted whole machine manufacturing efficiency.
The model utility content
Technical problem to be solved in the utility model is: a kind of tube bender master cylinder oil-way system is provided, and when this master cylinder oil-way system can satisfy the bend pipe power of mill type cylinder tube bender, it was fast to push away curved speed, thereby enhances productivity.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of tube bender master cylinder oil-way system, comprise master cylinder, described master cylinder comprises cylinder barrel and is slidingly mounted on cylinder barrel interior first piston and the second piston, connect by connecting rod between first piston and the second piston, first piston is near the head of master cylinder, and first piston is connected with and stretches out the outer piston rod of master cylinder; Described master cylinder oil-way system also comprise with first piston and the second piston between the second contraction application of force pipeline that first shrinks application of force pipeline, is communicated with chamber between the cylinder barrel head with first piston that is communicated with of chamber, be communicated with and stretch out application of force pipeline, oil pump and three position four-way electromagnetic valve with chamber between first piston and the second piston; Described oil pump is communicated with the fuel feeding port of three position four-way electromagnetic valve, described the first contraction application of force pipeline and second shrinks application of force pipeline and all is communicated with the contraction application of force port of three position four-way electromagnetic valve, the described application of force pipeline that stretches out is communicated with the application of force port that stretches out of three position four-way electromagnetic valve, and the overflow port of described three position four-way electromagnetic valve is communicated with overflow ladle.
As a kind of preferred scheme, described the first contraction application of force pipeline and second shrinks on the application of force pipeline and is equipped with stroke speed adjusting valve.
As a kind of preferred scheme, described oil pump is provided with electromagnetic relief valve with the pipeline that the fuel feeding port of three position four-way electromagnetic valve is communicated with.
After having adopted technique scheme, effect of the present utility model is: because the master cylinder that adopts is double-piston, and shrink application of force pipeline to the second piston application of force by first, second shrinks application of force pipeline to the first piston application of force, therefore, the cylinder barrel diameter of master cylinder can arrange less, still can guarantee the bend pipe power that bend pipe is required, and when master cylinder stretches out, stretch out the application of force pipeline first piston is carried out the application of force, the cylinder barrel diameter is little, and the lifting surface area of first piston is little, pressure is large, the piston rod speed of stretching out accelerates, thereby the curved speed of pushing away of tube bender accelerates, and then improves the manufacturing efficiency of tube bender.
Again owing to described first shrink application of force pipeline and second and shrink on the application of force pipeline and be equipped with stroke speed adjusting valve, therefore guarantee first piston and the second piston when retraction stressed identical, speed is identical.
Because described oil pump is provided with electromagnetic relief valve with the pipeline that the fuel feeding port of three position four-way electromagnetic valve is communicated with, therefore, oil pump too much oil when master cylinder is carried out fuel feeding is reclaimed by the electromagnetic relief valve overflow again.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model embodiment's hydraulic schematic diagram;
In the accompanying drawing: 1. master cylinder; 11. first piston; 12. the second piston; 13. connecting rod; 14. piston rod; 15. cylinder barrel; 2. first shrinks application of force pipeline; 3. second shrinks application of force pipeline; 4. stretch out application of force pipeline; 5. stroke speed adjusting valve; 6. three position four-way electromagnetic valve; 61. shrink application of force port; 62. stretch out application of force port; 63. fuel feeding port; 64. overflow port; 7. oil pump; 8. electromagnetic relief valve; 9. pressure gauge.
Embodiment
Below by specific embodiment the utility model is described in further detail.
As shown in Figure 1, a kind of tube bender master cylinder oil-way system, comprise master cylinder 1, described master cylinder 1 comprises cylinder barrel 15 and the first piston 11 and the second piston 12 that are slidingly mounted in the cylinder barrel 15, connect by connecting rod 13 between first piston 11 and the second piston 12, first piston 11 and the second piston 12 molar behaviors, first piston 11 are near the head of master cylinder 1, and first piston 11 is connected with the piston rod 14 that stretches out outside the master cylinder 1; Described master cylinder 1 oil-way system also comprise with first piston 11 and the second piston 12 between the second contraction application of force pipeline 3 that first shrinks application of force pipeline 2, is communicated with chamber between cylinder barrel 15 heads with first piston 11 that is communicated with of chamber, be communicated with and stretch out application of force pipeline 4, oil pump 7 and three position four-way electromagnetic valve 6 with chamber between first piston 11 and the second piston 12; Described oil pump 7 is communicated with the fuel feeding port 63 of three position four-way electromagnetic valve 6, described the first contraction application of force pipeline 2 and second shrinks application of force pipeline 3 and all is communicated with the contraction application of force port 61 of three position four-way electromagnetic valve 6, the described application of force pipeline 4 that stretches out is communicated with the application of force port 62 that stretches out of three position four-way electromagnetic valve 6, and the overflow port 64 of described three position four-way electromagnetic valve 6 is communicated with overflow ladle.
For guarantee first piston 11 and the second piston 12 stressed identical, speed is identical, described first shrinks application of force pipeline 2 and second shrinks on the application of force pipeline 3 and is equipped with stroke speed adjusting valve 5.
Described oil pump 7 is provided with electromagnetic relief valve 8 with the pipeline that the fuel feeding port 63 of three position four-way electromagnetic valve 6 is communicated with.Also be provided with pressure gauge 9 on it, can guarantee like this that master cylinder 1 is under the safety pressure to work.
Working principle of the present utility model is: oil pump 7 is extracted the hydraulic oil in the oil drum out and is entered into three position four-way electromagnetic valve 6 through fuel feeding port 63, three position four-way electromagnetic valve 6 distributes hydraulic oil, hydraulic oil flows out from shrinking application of force port 61, shrink application of force pipeline 3 through the first contraction application of force pipeline 2 and second and act on respectively the second piston 12 and first piston 11, first piston 11 and the 12 simultaneously synchronized actions of the second piston are so that piston rod 14 retractions, tube bender is realized bend pipe, owing to act on two pistons, even therefore the diameter point of cylinder barrel 15 also can satisfy the required bend pipe power of bend pipe, after piston rod shrinks and puts in place, hydraulic oil is back to three position four-way electromagnetic valve 6 and from 64 outflows of overflow port, finishes piston rod 14 contractive action of master cylinder 1 from stretching out application of force pipeline 4.When the contraction application of force port 61 of hydraulic oil from three position four-way electromagnetic valve 6 flows out, hydraulic oil enters into and promotes first piston 11 in the chamber between first piston 11 and the second piston 12 and move to cylinder barrel 15 heads like this, piston rod 14 stretches out, and the rear oil hydraulic cylinder that puts in place shrinks to be back to the application of force pipeline 2 in the three position four-way electromagnetic valve 6 and from overflow port 64 from first and flows out.
In sum, master cylinder 1 is finished the contraction of piston rod 14 and is stretched out under the control of three position four-way electromagnetic valve 6, and adopts double-piston is set, and can reduce the diameter of cylinder barrel 15, thereby when guaranteeing that master cylinder 1 provides enough bend pipe power, push away curved speed and accelerate.
Claims (3)
1. tube bender master cylinder oil-way system, comprise master cylinder, it is characterized in that: described master cylinder comprises cylinder barrel and is slidingly mounted on cylinder barrel interior first piston and the second piston, connect by connecting rod between first piston and the second piston, first piston is near the head of master cylinder, and first piston is connected with and stretches out the outer piston rod of master cylinder; Described master cylinder oil-way system also comprise with first piston and the second piston between the second contraction application of force pipeline that first shrinks application of force pipeline, is communicated with chamber between the cylinder barrel head with first piston that is communicated with of chamber, be communicated with and stretch out application of force pipeline, oil pump and three position four-way electromagnetic valve with chamber between first piston and the second piston; Described oil pump is communicated with the fuel feeding port of three position four-way electromagnetic valve, described the first contraction application of force pipeline and second shrinks application of force pipeline and all is communicated with the contraction application of force port of three position four-way electromagnetic valve, the described application of force pipeline that stretches out is communicated with the application of force port that stretches out of three position four-way electromagnetic valve, and the overflow port of described three position four-way electromagnetic valve is communicated with overflow ladle.
2. a kind of tube bender master cylinder oil-way system as claimed in claim 1 is characterized in that: be equipped with stroke speed adjusting valve on described the first contraction application of force pipeline and the second contraction application of force pipeline.
3. a kind of tube bender master cylinder oil-way system as claimed in claim 2, it is characterized in that: described oil pump is provided with electromagnetic relief valve with the pipeline that the fuel feeding port of three position four-way electromagnetic valve is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301817 CN202646198U (en) | 2012-06-26 | 2012-06-26 | Oil path system of main oil cylinder for pipe-bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301817 CN202646198U (en) | 2012-06-26 | 2012-06-26 | Oil path system of main oil cylinder for pipe-bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646198U true CN202646198U (en) | 2013-01-02 |
Family
ID=47415314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220301817 Expired - Fee Related CN202646198U (en) | 2012-06-26 | 2012-06-26 | Oil path system of main oil cylinder for pipe-bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734240A (en) * | 2012-06-26 | 2012-10-17 | 张家港市华舜机械制造有限公司 | Oil circuit system of main oil cylinder of tube bending machine |
-
2012
- 2012-06-26 CN CN 201220301817 patent/CN202646198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734240A (en) * | 2012-06-26 | 2012-10-17 | 张家港市华舜机械制造有限公司 | Oil circuit system of main oil cylinder of tube bending machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20170626 |