CN101829751A - Pressure machine closed height adjusting device and control system thereof - Google Patents
Pressure machine closed height adjusting device and control system thereof Download PDFInfo
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- CN101829751A CN101829751A CN200910025379A CN200910025379A CN101829751A CN 101829751 A CN101829751 A CN 101829751A CN 200910025379 A CN200910025379 A CN 200910025379A CN 200910025379 A CN200910025379 A CN 200910025379A CN 101829751 A CN101829751 A CN 101829751A
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Abstract
The invention relates to a pressure machine closed height adjusting device and a control system thereof. A hydraulic cylinder and a slider have a connected structure, or a divided structure; a piston rod of the hydraulic cylinder is hinged with one end of a connecting rod, and the other end of the connecting rod is connected with a crank shaft in a suitable mode; a control oil way of an upper cylinder hydraulic control one-way valve is communicated with an oil inlet of a lower cylinder hydraulic control one-way valve; the control oil way of the lower cylinder hydraulic control one-way valve is communicated with the oil inlet of the upper cylinder hydraulic control one-way valve; the oil inlets of the lower cylinder hydraulic control one-way valve and the upper cylinder hydraulic control one-way valve are respectively connected with two oil outlets of a two-position three-way solenoid valve, and an oil return opening of the two-position three-way solenoid valve is directly connected with an oil tank; a three-way connector is respectively connected with the oil inlet of the two-position three-way solenoid valve, the oil outlet of an oil pump and a main line overflow valve; and the oil outlet of the main line overflow valve is directly communicated with the oil tank, and the oil inlet of the oil pump is connected with an oil filter, and then communicated with the oil tank.
Description
Technical field
The present invention relates to a kind of forcing press control system, particularly a kind of pressure machine closed height adjusting device and control system thereof.Belong to the metal forming machinery technical field.
Background technology
For the ease of install, change, the maintenance mould, and for aborning to crossing the isoparametric adjusting of modulus, all be provided with the closed height governor motion in the sliding-block linkage of forcing press.At present, the closed height governor motion all adopts mechanically operated method to carry out, and this control method is complex structure not only, and manufacture difficulty is bigger, regulates comparatively trouble, and the simultaneous faults rate is also higher.
Summary of the invention
The objective of the invention is to: a kind of pressure machine closed height adjusting device and control system thereof are provided, overcome existing closed height governor motion owing to adopt mechanically operated method to carry out, the complex structure that is brought, manufacture difficulty is bigger, regulate comparatively trouble, the defective that the simultaneous faults rate is also higher.
The present invention realizes that the technical scheme that above-mentioned purpose adopts is: a kind of pressure machine closed height adjusting device and control system thereof, it is made up of fuel tank, oil filter, oil pump, main line overflow valve, two-bit triplet magnetic valve, following cylinder safety valve, following cylinder hydraulic control one-way valve, upper cylinder half hydraulic control one-way valve, upper cylinder half safety valve, hydraulic cylinder, slide block, piston rod, connecting rod, bent axle.Described hydraulic cylinder and slide block can be the version of disjunctor, also can be the version of split, and an end of the piston rod of hydraulic cylinder and connecting rod is hinged, and an other end of connecting rod links to each other by suitable mode with bent axle.At the oil inlet and outlet position of hydraulic cylinder epicoele, link to each other with upper cylinder half hydraulic control one-way valve, upper cylinder half safety valve respectively with three-way connection, the installation of upper cylinder half hydraulic control one-way valve and upper cylinder half safety valve and the oil cylinder of its UNICOM can form the back pressure relation; Oil inlet and outlet position at the hydraulic cylinder cavity of resorption, link to each other with following cylinder hydraulic control one-way valve, following cylinder safety valve respectively with three-way connection, following cylinder hydraulic control one-way valve can form the back pressure relation with the installation of following cylinder safety valve and the oil cylinder of its UNICOM, and the upper cylinder half safety valve is directly linked to each other with fuel tank with the outlet of following cylinder safety valve.The control oil circuit of upper cylinder half hydraulic control one-way valve is connected with the oil-in of following cylinder hydraulic control one-way valve, the control oil circuit of following cylinder hydraulic control one-way valve is connected with the oil-in of upper cylinder half hydraulic control one-way valve, following cylinder hydraulic control one-way valve is linked to each other with two oil-outs of two-bit triplet magnetic valve respectively with the oil-in of upper cylinder half hydraulic control one-way valve, the oil return opening of two-bit triplet magnetic valve is directly communicated with fuel tank, with three-way connection respectively with the oil-in of two-bit triplet magnetic valve, the oil-out of oil pump and main line overflow valve link to each other, the oil-out of main line overflow valve directly communicates with fuel tank, communicates with fuel tank behind the oil-in process oil filter with oil pump.
Operation principle of the present invention is: the hydraulic oil that oil pump is got, under the control of two-bit triplet magnetic valve, can enter in the upper and lower cavity of oil cylinder through upper cylinder half hydraulic control one-way valve and following cylinder hydraulic control one-way valve respectively, because the piston rod of oil cylinder and rod hinge connection are together, connecting rod is connected with bent axle again, there is not the free degree at above-below direction, hydraulic cylinder and slide block fix, so, slide block is motion up or down just, after slide block was adjusted to suitable position, the two-bit triplet magnetic valve quit work, so the upper cylinder half hydraulic control one-way valve is in closing state with following cylinder hydraulic control one-way valve, and the upper cylinder half safety valve will just can be opened by certain pressure with opening of following cylinder safety valve, so the hydraulic fluid port up and down of hydraulic cylinder is in closed condition at this moment, to utilize the carrying out of operate as normal.In case the pressure load of forcing press, or slide block hinders with corresponding when regulating downwards, all can cause the cavity of resorption of oil cylinder or the pressure anomaly in the epicoele to raise, so corresponding safety valve is opened pressure release, thereby plays safe effect.The main line overflow valve rises in system and guarantees that main line oil is no more than specified parameter.
Beneficial effect: the present invention is owing to be provided with hydraulic cylinder on slide block, adopt hydraulic way that slide block is regulated, so have simple in structure, easy to manufacture, it is comparatively convenient to regulate, the advantage that the simultaneous faults rate is also lower, in addition, because hydraulic system when quitting work, is set up certain back pressure, so can play effective safety effect in the upper and lower cavity of hydraulic cylinder.
Description of drawings
Accompanying drawing is a schematic diagram of the present invention.
Shown in the figure: 1, fuel tank; 2, oil filter; 3, oil pump; 4, main line overflow valve; 5, two-bit triplet magnetic valve; 6, following cylinder safety valve; 7, following cylinder hydraulic control one-way valve; 8, upper cylinder half hydraulic control one-way valve; 9, upper cylinder half safety valve; 10, hydraulic cylinder; 11, slide block; 12, piston rod; 13, connecting rod; 14, bent axle.
The specific embodiment
Hydraulic cylinder (10) can be the version of disjunctor with slide block (11), also can be the version of split, the piston rod (12) of hydraulic cylinder (10) is hinged with an end of connecting rod (13), and an other end of connecting rod (13) links to each other by suitable mode with bent axle (14).At the oil inlet and outlet position of hydraulic cylinder (10) epicoele, link to each other with upper cylinder half hydraulic control one-way valve (8), upper cylinder half safety valve (9) respectively with three-way connection, upper cylinder half hydraulic control one-way valve (8) can form the back pressure relation with the installation of upper cylinder half safety valve (9) and the oil cylinder of its UNICOM; Oil inlet and outlet position at hydraulic cylinder (10) cavity of resorption, link to each other with following cylinder hydraulic control one-way valve (7), following cylinder safety valve (6) respectively with three-way connection, following cylinder hydraulic control one-way valve (7) can form the back pressure relation with the installation of following cylinder safety valve (6) and the oil cylinder of its UNICOM, and upper cylinder half safety valve (9) is directly linked to each other with fuel tank (1) with the outlet of following cylinder safety valve (6).The control oil circuit of upper cylinder half hydraulic control one-way valve (8) is connected with the oil-in of following cylinder hydraulic control one-way valve (7), to play the control oil circuit of cylinder hydraulic control one-way valve (7) to be connected with the oil-in of upper cylinder half hydraulic control one-way valve (8), to play cylinder hydraulic control one-way valve (7) to link to each other with two oil-outs of two-bit triplet magnetic valve (5) respectively with the oil-in of upper cylinder half hydraulic control one-way valve (8), the oil return opening of two-bit triplet magnetic valve (5) is directly communicated with fuel tank (1), with three-way connection respectively with the oil-in of two-bit triplet magnetic valve (5), the oil-out of oil pump (3) and main line overflow valve (4) link to each other, the oil-out of main line overflow valve (4) directly communicates with fuel tank (1), communicates with fuel tank (1) after oil-in process oil filter (2) connection with oil pump (3).
Claims (4)
1. pressure machine closed height adjusting device and control system thereof, it is characterized in that: hydraulic cylinder (10) can be the version of disjunctor with slide block (11), also can be the version of split, the piston rod (12) of hydraulic cylinder (10) is hinged with an end of connecting rod (13), and an other end of connecting rod (13) links to each other by suitable mode with bent axle (14).
2. a kind of pressure machine closed height adjusting device according to claim 1 and control system thereof, it is characterized in that: at the oil inlet and outlet position of hydraulic cylinder (10) epicoele, link to each other with upper cylinder half hydraulic control one-way valve (8), upper cylinder half safety valve (9) respectively with three-way connection, upper cylinder half hydraulic control one-way valve (8) can form the back pressure relation with the installation of upper cylinder half safety valve (9) and the oil cylinder of its UNICOM; Oil inlet and outlet position at hydraulic cylinder (10) cavity of resorption, link to each other with following cylinder hydraulic control one-way valve (7), following cylinder safety valve (6) respectively with three-way connection, following cylinder hydraulic control one-way valve (7) can form the back pressure relation with the installation of following cylinder safety valve (6) and the oil cylinder of its UNICOM, and upper cylinder half safety valve (9) is directly linked to each other with fuel tank (1) with the outlet of following cylinder safety valve (6).
3. a kind of pressure machine closed height adjusting device according to claim 1 and 2 and control system thereof, it is characterized in that: the control oil circuit of upper cylinder half hydraulic control one-way valve (8) is connected with the oil-in of following cylinder hydraulic control one-way valve (7), to play the control oil circuit of cylinder hydraulic control one-way valve (7) to be connected, will play cylinder hydraulic control one-way valve (7) to link to each other with two oil-outs of two-bit triplet magnetic valve (5) respectively with the oil-in of upper cylinder half hydraulic control one-way valve (8) with the oil-in of upper cylinder half hydraulic control one-way valve (8).
4. according to claim 1 or 3 described a kind of pressure machine closed height adjusting device and control systems thereof, it is characterized in that: the oil return opening of two-bit triplet magnetic valve (5) is directly communicated with fuel tank (1), link to each other with the oil-in of two-bit triplet magnetic valve (5), the oil-out and the main line overflow valve (4) of oil pump (3) respectively with three-way connection, the oil-out of main line overflow valve (4) directly communicates with fuel tank (1), communicates with fuel tank (1) after oil-in process oil filter (2) connection with oil pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025379A CN101829751A (en) | 2009-03-13 | 2009-03-13 | Pressure machine closed height adjusting device and control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025379A CN101829751A (en) | 2009-03-13 | 2009-03-13 | Pressure machine closed height adjusting device and control system thereof |
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| Publication Number | Publication Date |
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| CN101829751A true CN101829751A (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910025379A Pending CN101829751A (en) | 2009-03-13 | 2009-03-13 | Pressure machine closed height adjusting device and control system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343761A (en) * | 2013-07-19 | 2013-10-09 | 南京工业大学 | Hydraulic loading device |
| CN104369417A (en) * | 2013-08-13 | 2015-02-25 | 宁夏嘉翔自控技术有限公司 | Choking preventive control device of ball press machine |
| CN105436378A (en) * | 2014-09-03 | 2016-03-30 | 天津市天锻压力机有限公司 | Low speed control system for isothermal thermal forming hydraulic machine |
| CN105776055A (en) * | 2016-05-23 | 2016-07-20 | 徐工集团工程机械股份有限公司 | Cantilever crane installing and supporting device and cantilever crane assembling method |
| CN108746742A (en) * | 2018-06-28 | 2018-11-06 | 重庆友擘机械制造有限公司 | A kind of shift pivoted arm perforating device |
-
2009
- 2009-03-13 CN CN200910025379A patent/CN101829751A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343761A (en) * | 2013-07-19 | 2013-10-09 | 南京工业大学 | Hydraulic loading device |
| CN103343761B (en) * | 2013-07-19 | 2015-09-02 | 南京工业大学 | Hydraulic loading device |
| CN104369417A (en) * | 2013-08-13 | 2015-02-25 | 宁夏嘉翔自控技术有限公司 | Choking preventive control device of ball press machine |
| CN105436378A (en) * | 2014-09-03 | 2016-03-30 | 天津市天锻压力机有限公司 | Low speed control system for isothermal thermal forming hydraulic machine |
| CN105776055A (en) * | 2016-05-23 | 2016-07-20 | 徐工集团工程机械股份有限公司 | Cantilever crane installing and supporting device and cantilever crane assembling method |
| CN108746742A (en) * | 2018-06-28 | 2018-11-06 | 重庆友擘机械制造有限公司 | A kind of shift pivoted arm perforating device |
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Application publication date: 20100915 |