CN102734240A - Oil circuit system of main oil cylinder of tube bending machine - Google Patents
Oil circuit system of main oil cylinder of tube bending machine Download PDFInfo
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- CN102734240A CN102734240A CN2012102135697A CN201210213569A CN102734240A CN 102734240 A CN102734240 A CN 102734240A CN 2012102135697 A CN2012102135697 A CN 2012102135697A CN 201210213569 A CN201210213569 A CN 201210213569A CN 102734240 A CN102734240 A CN 102734240A
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Abstract
The invention discloses an oil circuit system of a main oil cylinder of a tube bending machine. The oil circuit system comprises the main oil cylinder; the main oil cylinder comprises a cylinder barrel, a first piston and a second piston; the first piston and the second piston are slidably arranged in the cylinder barrel and are connected with each other through a connecting rod; and the first piston approaches the head of the main oil cylinder and is connected with a piston rod which extends out of the main oil cylinder. The oil circuit system also comprises a first contraction force application pipeline, a second contraction force application pipeline, an extension force application pipeline, an oil pump and a three-position four-way electromagnetic valve, wherein the first contraction force application pipeline is communicated with a cavity between the first piston and the second piston; the second contraction force application pipeline is communicated with a cavity between the first piston and the head of the cylinder barrel; the extension force application pipeline is communicated with the cavity between the first piston and the second piston; the oil pump is communicated with an oil supply port of the three-position four-way electromagnetic valve; both the first contraction force application pipeline and the second contraction force application pipeline are communicated with a contraction force application port of the three-position four-way electromagnetic valve; the extension force application pipeline is communicated with an extension force application port of the three-position four-way electromagnetic valve; and an overflow port of the three-position four-way electromagnetic valve is communicated with an overflow barrel. The oil circuit system of the main oil cylinder can meet requirements on tube bending force of the large tube bending machine with the oil cylinder, and is fast in bending speed, so that production efficiency is improved.
Description
Technical field
The present invention relates to a kind of oil-way system, be meant a kind of tube bender master cylinder oil-way system especially.
Background technique
General large-scale oil pressure tube bender is owing to need bend pipe power big, and therefore then volume is big could satisfy its bend pipe power for supporting master cylinder, makes the volume of complete machine just seem too fat to move huge like this, and it is slow to move back curved speed, restricted entire machine manufacturing efficiency.
Summary of the invention
Technical problem to be solved by this invention 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; Technological scheme of the present invention is: a kind of tube bender master cylinder oil-way system; Comprise master cylinder, said master cylinder comprises cylinder barrel and the first piston and second piston that are slidingly mounted in the cylinder barrel, connects through connecting rod between the first piston and 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; Said master cylinder oil-way system also comprise with the first piston and 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 the first piston and second piston; Said oil pump is communicated with the fuel feeding port of three position four-way electromagnetic valve; The said 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 said 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 said three position four-way electromagnetic valve is communicated with overflow ladle.
As a kind of preferred scheme, the said first contraction application of force pipeline and second shrinks on the application of force pipeline and is equipped with the stroke series flow control valve.
As a kind of preferred scheme, said 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 invention is: because the master cylinder that adopts is a double-piston, and shrinks application of force pipeline through first the second piston application of force, second is shunk application of force pipeline to the first piston application of force; Therefore, the cylinder barrel diameter of master cylinder can be provided with less, still can guarantee the bend pipe power that bend pipe is required; And when master cylinder stretched out, stretching out application of force pipeline carried out the application of force to first piston, and the cylinder barrel diameter is little; The lifting surface area of first piston is little, and pressure is big, and the piston rod speed of stretching out accelerates; Thereby pushing away of tube bender curved speed up, and then improve the manufacturing efficiency of tube bender.
Again owing to said first shrink application of force pipeline and second and shrink on the application of force pipeline and be equipped with the stroke series flow control valve, therefore guarantee first piston and second piston when retraction stressed identical, speed is identical.
Because said 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 accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the hydraulic schematic diagram of the embodiment of the invention;
In the accompanying drawing: 1. master cylinder; 11. first piston; 12. 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 series flow control 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
Through specific embodiment the present invention is made further detailed description below.
As shown in Figure 1; A kind of tube bender master cylinder oil-way system comprises master cylinder 1, and said master cylinder 1 comprises cylinder barrel 15 and the first piston 11 and second piston 12 that are slidingly mounted in the cylinder barrel 15; Connect through connecting rod 13 between the first piston 11 and second piston 12; First piston 11 and 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; Said master cylinder 1 oil-way system also comprise with the first piston 11 and 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 the first piston 11 and second piston 12; Said oil pump 7 is communicated with the fuel feeding port 63 of three position four-way electromagnetic valve 6; The said 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 said 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 said three position four-way electromagnetic valve 6 is communicated with overflow ladle.
For guarantee the first piston 11 and second piston 12 stressed identical, speed is identical, said first shrinks on application of force pipeline 2 and the second contraction application of force pipeline 3 and is equipped with stroke series flow control valve 5.
Said 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 that like this master cylinder 1 is in proper functioning under the safety pressure.
Working principle of the present invention 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, and warp first shrinks application of force pipeline 2 and the second contraction application of force pipeline 3 acts on second piston 12 and first piston 11 respectively, and the first piston 11 and second piston 12 make piston rod 14 bounce back with quick-action simultaneously; 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 flows out piston rod 14 contractive action of completion master cylinder 1 from overflow port 64 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 in the chamber between the first piston 11 and second piston 12 and to promote first piston 11 and move to cylinder barrel 15 heads like this; Piston rod 14 stretches out, and the back 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 accomplished 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 and curvedly speed up.
Claims (3)
1. tube bender master cylinder oil-way system; Comprise master cylinder; It is characterized in that: said master cylinder comprises cylinder barrel and the first piston and second piston that are slidingly mounted in the cylinder barrel; Connect through connecting rod between the first piston and 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; Said master cylinder oil-way system also comprise with the first piston and 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 the first piston and second piston; Said oil pump is communicated with the fuel feeding port of three position four-way electromagnetic valve; The said 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 said 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 said 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: the said first contraction application of force pipeline and second shrinks on the application of force pipeline and is equipped with the stroke series flow control valve.
3. a kind of tube bender master cylinder oil-way system as claimed in claim 2 is characterized in that: said 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 |
|---|---|---|---|
| CN2012102135697A CN102734240A (en) | 2012-06-26 | 2012-06-26 | Oil circuit system of main oil cylinder of tube bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102135697A CN102734240A (en) | 2012-06-26 | 2012-06-26 | Oil circuit system of main oil cylinder of tube bending machine |
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| Publication Number | Publication Date |
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| CN102734240A true CN102734240A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102135697A Pending CN102734240A (en) | 2012-06-26 | 2012-06-26 | Oil circuit system of main oil cylinder of tube bending machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861720A (en) * | 2014-03-20 | 2014-06-18 | 湖州市千金宝云机械铸件有限公司 | Vertical pulverizer for grinding ultrafine powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192714A (en) * | 1995-07-06 | 1998-09-09 | 株式会社小松制作所 | High-speed high-load hydraulic cylinder system and control method thereof |
| CN1206452A (en) * | 1995-12-29 | 1999-01-27 | 卡瓦纳碎浆处理公司 | Hydraulic unit |
| JPH11125212A (en) * | 1997-10-20 | 1999-05-11 | Ckd Corp | Cylinder control method and its control circuit and its control system |
| CN202646198U (en) * | 2012-06-26 | 2013-01-02 | 张家港市华舜机械制造有限公司 | Oil path system of main oil cylinder for pipe-bending machine |
-
2012
- 2012-06-26 CN CN2012102135697A patent/CN102734240A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192714A (en) * | 1995-07-06 | 1998-09-09 | 株式会社小松制作所 | High-speed high-load hydraulic cylinder system and control method thereof |
| CN1206452A (en) * | 1995-12-29 | 1999-01-27 | 卡瓦纳碎浆处理公司 | Hydraulic unit |
| JPH11125212A (en) * | 1997-10-20 | 1999-05-11 | Ckd Corp | Cylinder control method and its control circuit and its control system |
| CN202646198U (en) * | 2012-06-26 | 2013-01-02 | 张家港市华舜机械制造有限公司 | Oil path system of main oil cylinder for pipe-bending machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861720A (en) * | 2014-03-20 | 2014-06-18 | 湖州市千金宝云机械铸件有限公司 | Vertical pulverizer for grinding ultrafine powder |
| CN103861720B (en) * | 2014-03-20 | 2015-10-28 | 湖州市千金宝云机械铸件有限公司 | The vertical crusher of grinding superfine powder |
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Application publication date: 20121017 |