CN202746309U - Hydraulic press machine capable of machining transformer coil - Google Patents
Hydraulic press machine capable of machining transformer coil Download PDFInfo
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- CN202746309U CN202746309U CN 201220435967 CN201220435967U CN202746309U CN 202746309 U CN202746309 U CN 202746309U CN 201220435967 CN201220435967 CN 201220435967 CN 201220435967 U CN201220435967 U CN 201220435967U CN 202746309 U CN202746309 U CN 202746309U
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Abstract
A hydraulic press machine capable of machining a transformer coil comprises an oil tank, wherein the oil tank is connected with an oil inlet of a constant flow paddle pump by a low pressure oil inlet pipeline; an oil outlet of the constant flow paddle pump is connected with an oil inlet of a low pressure oil conveying pipeline; a low pressure oil inlet filter and a low pressure one-way valve are mounted from an inlet end of the low pressure oil conveying pipeline to an outlet end of the low pressure oil conveying pipeline in sequence in a serially connected way; the low pressure one-way valve can be used for hydraulic oil to flow to the outlet end; a pipeline section of the low pressure oil conveying pipeline between the low pressure oil inlet filter and the low pressure one-way valve is connected with an oil inlet of a low pressure oil discharging pipeline; and a low pressure normally open unloading electromagnetic relief valve is connected to the low pressure oil discharging pipeline in series. The utility model is to provide the hydraulic press machine capable of machining the transformer coil. The hydraulic press machine capable of machining the transformer coil has the advantages as follows: high production efficiency is obtained; the insulation of a winding can be prevented from being damaged due to unbalanced stress suffering by the coil; eddy-current loss and flux leakage caused by larger air gaps due to too small pressing force are avoided, so that the heating of a transformer is avoided; the insulation damage of a conductor and the deformation of the winding due to too large pressing force are avoided; and the quality of the machined transformer coil is preferably guaranteed.
Description
Technical field
The utility model relates to a kind of hydraulic pressure press of processing transformer coil.
Background technique
The three large basic elements of character of transformer are divided into iron core, winding coil and cooler, and winding coil is not only the galvanic circle of transformer, especially the heart of transformer.Winding coil after just coiling has been finished because of different winding modes and different operation techniques, can make winding coil have larger size difference at axial direction; For guaranteeing the same specification coil axes to consistent size, traditional way is to adopt upper and lower pressing plate, and four brails add the artificial load mode of nut; There are following four large disadvantages in the method:
1), manually loads time-consuming, effort, inefficiency.
2), coil discontinuity equalization; Unbalancedly stressedly winding insulation is destroyed and cause transformer to damage.
3), the winding coil press power is not easy control, and can't monitor, press power is too small can to produce larger air gap, causes eddy current loss, leakage field, thereby makes the transformer heating.Press power is excessive, might damage wire insulation and make winding deformation.
4), axial dimension is not easy control.Although when loading, coil dimension has reached designing requirement, after loading force removed, coil can exceed because of bounce-back design load.
5) axial dimension can only pass through hand dipping, and real monitoring can't realize the time.
The model utility content
The purpose of this utility model is to provide a kind of manufacturing efficiency high, can avoid the coil discontinuity equalization that winding insulation is destroyed, avoid the too small meeting of press power to produce larger air gap, cause eddy current loss, leakage field, thereby make the transformer heating, avoid the excessive damage wire insulation of press power and make winding deformation, the hydraulic pressure press of the transformer coil processed that the transformer coil quality of institute's processing is more secure.
The hydraulic pressure press of processing transformer coil of the present utility model, comprise frame, worktable, also comprise fuel tank, fuel tank links to each other with the filler opening of constant flow paddle pump by the low pressure in-line, the inlet of low pressure in-line is provided with the low pressure line coarse-grain filtering device, the low pressure in-line has low pressure butterfly valve and low pressure compensator from entrance point to the outlet end installed in series in order, the oil outlet of described constant flow paddle pump links to each other with the filler opening on low-pressure oil delivery pipe road, there is the low pressure inlet oil filter on the low-pressure oil delivery pipe road and can allows hydraulic oil flow to the low pressure check valve of outlet end to the outlet end installed in series in order from entrance point, pipeline section on the low-pressure oil delivery pipe road between low pressure inlet oil filter and low pressure check valve links to each other with the filler opening of low pressure oil extraction pipeline, be in series with the low pressure charged magnetic relief valve of often starting discharging on the low pressure oil extraction pipeline, the oil outlet of low pressure oil extraction pipeline links to each other with the oil inlet end of return line, the oil outlet on described low-pressure oil delivery pipe road by the oil distributing pipe road respectively with the filler opening of the first servo hydraulic cylinder system, the filler opening of the second servo hydraulic cylinder system, the filler opening of the 3rd servo hydraulic cylinder system links to each other with the filler opening of the 4th servo hydraulic cylinder system;
Described fuel tank links to each other with the filler opening of high-pressure shaft to quantitative plunger pump by the high pressure in-line, the inlet of high pressure in-line is provided with the pressure duct coarse-grain filtering device, the high pressure in-line has pressure ball valve and high pressure compensator from entrance point to the outlet end installed in series in order, described high-pressure shaft links to each other with the filler opening on high-pressure pipeline road to the oil outlet of quantitative plunger pump, there is the high pressure inlet oil filter on the high-pressure pipeline road and can allows hydraulic oil flow to the high pressure one-way valve of outlet end to the outlet end installed in series in order from entrance point, pipeline section on the high-pressure pipeline road between high pressure inlet oil filter and high pressure one-way valve links to each other with the filler opening of high pressure oil extraction pipeline, be in series with the pilot-operated proportional relief valve with external amplification board on the high pressure oil extraction pipeline, the oil outlet of high pressure oil extraction pipeline links to each other with the oil inlet end of return line, the oil outlet on described high-pressure pipeline road by described oil distributing pipe road respectively with the filler opening of described the first servo hydraulic cylinder system, the filler opening of described the second servo hydraulic cylinder system, the filler opening of described the 3rd servo hydraulic cylinder system links to each other with the filler opening of described the 4th servo hydraulic cylinder system;
Described the first servo hydraulic cylinder system comprises the first servo hydraulic cylinder, the first in-line, the first return line and the first normal close type 3-position 4-way electrohydraulic control, the filler opening of the first servo hydraulic cylinder system is the filler opening of the first in-line, be in series with the first high pressure filter that band stops up warning function on the first in-line, the oil outlet of the first in-line links to each other with the oil-feed port P of described the first normal close type 3-position 4-way electrohydraulic control, the filler opening of the first return line links to each other with the drain tap T of the first normal close type 3-position 4-way electrohydraulic control, the oil outlet of the first return line links to each other with the oil inlet end of described return line, the hydraulic fluid port A of described normal close type 3-position 4-way electrohydraulic control links to each other with the lower active chamber of described the first servo hydraulic cylinder by first time active chamber pipeline road, first valve that contends with is installed on first time active chamber pipeline road, first valve that contends with has to the unidirectional logical oily path of the lower active chamber of the first servo hydraulic cylinder, be provided with the first lower pressure sensor at the first pipeline that contends with between the lower active chamber of valve and described the first servo hydraulic cylinder on first time active chamber pipeline road, the pipeline that contends with between the valve at described the first normal close type 3-position 4-way electrohydraulic control and first on first time active chamber pipeline road links to each other with the oil inlet end of return line by the pipeline that is in series with No. 1 position bi-bit bi-pass solenoid directional control valve, the hydraulic fluid port B of described normal close type 3-position 4-way electrohydraulic control links to each other with the upper active chamber of described the first servo hydraulic cylinder by active chamber pipeline road on first, the active chamber pipeline road is provided with the first upward pressure sensor on first, cylinder body and the frame of described the first servo hydraulic cylinder are fixedly linked, be provided with the first displacement transducer in the cylinder body of the first servo hydraulic cylinder, the first displacement transducer can be measured the movement of cylinder block position of the first servo hydraulic cylinder, and analog electric signal is passed to electric control system;
The described first control port that contends with valve links to each other with active chamber pipeline road on described first by pipeline;
Described the second servo hydraulic cylinder system comprises the second servo hydraulic cylinder, the second in-line, the second return line and the second normal close type 3-position 4-way electrohydraulic control, the filler opening of the second servo hydraulic cylinder system is the filler opening of the second in-line, be in series with the second high pressure filter that band stops up warning function on the second in-line, the oil outlet of the second in-line links to each other with the oil-feed port P of described the second normal close type 3-position 4-way electrohydraulic control, the filler opening of the second return line links to each other with the drain tap T of the second normal close type 3-position 4-way electrohydraulic control, the oil outlet of the second return line links to each other with the oil inlet end of described return line, the hydraulic fluid port A of described the second normal close type 3-position 4-way electrohydraulic control links to each other with the lower active chamber of described the second servo hydraulic cylinder by second time active chamber pipeline road, second valve that contends with is installed on second time active chamber pipeline road, second valve that contends with has to the unidirectional logical oily path of the lower active chamber of the second servo hydraulic cylinder, be provided with the second lower pressure sensor at the second pipeline that contends with between the lower active chamber of valve and described the second servo hydraulic cylinder on second time active chamber pipeline road, the pipeline that contends with between the valve at described the second normal close type 3-position 4-way electrohydraulic control and second on second time active chamber pipeline road links to each other with the oil inlet end of return line by the pipeline that is in series with No. 2 position bi-bit bi-pass solenoid directional control valves, the hydraulic fluid port B of described the second normal close type 3-position 4-way electrohydraulic control links to each other with the upper active chamber of described the second servo hydraulic cylinder by active chamber pipeline road on second, the active chamber pipeline road is provided with the second upward pressure sensor on second, cylinder body and the frame of described the second servo hydraulic cylinder are fixedly linked, be provided with the second displacement sensor in the cylinder body of the second servo hydraulic cylinder, the second displacement sensor can be measured the movement of cylinder block position of the second servo hydraulic cylinder, and analog electric signal is passed to electric control system;
The described second control port that contends with valve links to each other with active chamber pipeline road on described second by pipeline;
Described the 3rd servo hydraulic cylinder system comprises the 3rd servo hydraulic cylinder, the 3rd in-line, the 3rd return line and the 3rd normal close type 3-position 4-way electrohydraulic control, the filler opening of the 3rd servo hydraulic cylinder system is the filler opening of the 3rd in-line, be in series with the third high press filtration device that band stops up warning function on the 3rd in-line, the oil outlet of the 3rd in-line links to each other with the oil-feed port P of described the 3rd normal close type 3-position 4-way electrohydraulic control, the filler opening of the 3rd return line links to each other with the drain tap T of the 3rd normal close type 3-position 4-way electrohydraulic control, the oil outlet of the 3rd return line links to each other with the oil inlet end of described return line, the hydraulic fluid port A of described the 3rd normal close type 3-position 4-way electrohydraulic control links to each other with the lower active chamber of described the 3rd servo hydraulic cylinder by the 3rd time active chamber pipeline road, the 3rd valve that contends with is installed on the 3rd time active chamber pipeline road, the 3rd valve that contends with has to the unidirectional logical oily path of the lower active chamber of the 3rd servo hydraulic cylinder, be provided with the 3rd lower pressure sensor at the 3rd pipeline that contends with between the lower active chamber of valve and described the 3rd servo hydraulic cylinder on the 3rd time active chamber pipeline road, the pipeline that contends with between the valve at described the 3rd normal close type 3-position 4-way electrohydraulic control and the 3rd on the 3rd time active chamber pipeline road links to each other with the oil inlet end of return line by the pipeline that is in series with No. 3 position bi-bit bi-pass solenoid directional control valves, the hydraulic fluid port B of described the 3rd normal close type 3-position 4-way electrohydraulic control links to each other with the upper active chamber of described the 3rd servo hydraulic cylinder by active chamber pipeline road on the 3rd, the active chamber pipeline road is provided with the 3rd upward pressure sensor on the 3rd, cylinder body and the frame of described the 3rd servo hydraulic cylinder are fixedly linked, be provided with the triple motion sensor in the cylinder body of the 3rd servo hydraulic cylinder, the triple motion sensor can be measured the movement of cylinder block position of the 3rd servo hydraulic cylinder, and analog electric signal is passed to electric control system;
The described the 3rd control port that contends with valve links to each other with active chamber pipeline road on the described the 3rd by pipeline;
Described the 4th servo hydraulic cylinder system comprises the 4th servo hydraulic cylinder, the 4th in-line, the 4th return line and the 4th normal close type 3-position 4-way electrohydraulic control, the filler opening of the 4th servo hydraulic cylinder system is the filler opening of the 4th in-line, be in series with the 4th high pressure filter that band stops up warning function on the 4th in-line, the oil outlet of the 4th in-line links to each other with the oil-feed port P of described the 4th normal close type 3-position 4-way electrohydraulic control, the filler opening of the 4th return line links to each other with the drain tap T of the 4th normal close type 3-position 4-way electrohydraulic control, the oil outlet of the 4th return line links to each other with the oil inlet end of described return line, the hydraulic fluid port A of described the 4th normal close type 3-position 4-way electrohydraulic control links to each other with the lower active chamber of described the 4th servo hydraulic cylinder by the 4th time active chamber pipeline road, the 4th valve that contends with is installed on the 4th time active chamber pipeline road, the 4th valve that contends with has to the unidirectional logical oily path of the lower active chamber of the 4th servo hydraulic cylinder, be provided with the 4th lower pressure sensor at the 4th pipeline that contends with between the lower active chamber of valve and described the 4th servo hydraulic cylinder on the 4th time active chamber pipeline road, the pipeline that contends with between the valve at described the 4th normal close type 3-position 4-way electrohydraulic control and the 4th on the 4th time active chamber pipeline road links to each other with the oil inlet end of return line by the pipeline that is in series with No. 3 position bi-bit bi-pass solenoid directional control valves, the hydraulic fluid port B of described the 4th normal close type 3-position 4-way electrohydraulic control links to each other with the upper active chamber of described the 4th servo hydraulic cylinder by active chamber pipeline road on the 4th, the active chamber pipeline road is provided with the 4th upward pressure sensor on the 4th, cylinder body and the frame of described the 4th servo hydraulic cylinder are fixedly linked, be provided with the 4th displacement transducer in the cylinder body of the 4th servo hydraulic cylinder, the 4th displacement transducer can be measured the movement of cylinder block position of the 4th servo hydraulic cylinder, and analog electric signal is passed to electric control system;
The described the 4th control port that contends with valve links to each other with active chamber pipeline road on the described the 4th by pipeline;
To the outlet end installed in series in order return check valve, tube still type water cooler and return filter are arranged from entrance point on the described return line, the return filter place is equipped with for the differential pressure switch of measuring return filter two ends pressure reduction, the two ends of return filter link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to described fuel tank on the bypass oil pipe at return filter two ends.
The hydraulic pressure press of processing transformer coil of the present utility model, wherein said low pressure inlet oil filter place is equipped with for the differential pressure switch of measuring low pressure inlet oil filter two ends pressure reduction, the two ends of low pressure inlet oil filter link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to described oil distributing pipe road on the bypass oil pipe at low pressure inlet oil filter two ends; Described high pressure inlet oil filter place is equipped with for the differential pressure switch of measuring high pressure inlet oil filter two ends pressure reduction, the two ends of high pressure inlet oil filter link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to described oil distributing pipe road on the bypass oil pipe at high pressure inlet oil filter two ends.
The hydraulic pressure press of processing transformer coil of the present utility model, wherein said oil distributing pipe road links to each other with the capsule-type accumulator by the accumulation of energy pipeline, and the accumulation of energy pipeline is provided with stop valve and relief valve, and the flow-off of relief valve links to each other with described fuel tank by pipeline.
The hydraulic pressure press of processing transformer coil of the present utility model, wherein said fuel tank links to each other with the filler opening of gear pump by emergent in-line, the inlet of emergent in-line is provided with the emergency line filter, the oil outlet of described gear pump links to each other with the filler opening of emergent pipeline road, on the emergent pipeline road direct-acting overflow valve is installed and can allows hydraulic oil flow to the emergent one-way valve on described oil distributing pipe road, the outlet of emergent pipeline road links to each other with the oil distributing pipe road.
The hydraulic pressure press of processing transformer coil of the present utility model, the bottom of wherein said fuel tank is provided with the internal thread fuel outlet ball valve, the level meter that shows with temperature is installed on the sidewall of fuel tank, the top of fuel tank is provided with the fluid level transmitter with analog signal output, the top of fuel tank is provided with hydraulic air filter, fuel tank be provided with hydraulic air filter, with the bimetallic thermometer of double switch amount, with the fluid level controller of double switch amount, with simulation output, can the Real Time Monitoring fuel tank in the oil temperature temperature transmitter and the bar type magnetic filter that change.
The hydraulic pressure press of processing transformer coil of the present utility model, its on first the active chamber pipeline road be provided with the first upward pressure sensor, cylinder body and the frame of described the first servo hydraulic cylinder are fixedly linked, be provided with the first displacement transducer in the cylinder body of the first servo hydraulic cylinder, the first displacement transducer can be measured the movement of cylinder block position of the first servo hydraulic cylinder, and analog electric signal passed to electric control system, owing to having adopted the exclusive structural design of the utility model, therefore the hydraulic pressure press of transformer coil of processing of the present utility model is to the loading of winding coil, unloading all can realize automatic control, and it is high to have manufacturing efficiency, can avoid the coil discontinuity equalization that winding insulation is destroyed, avoid the too small meeting of press power to produce larger air gap, cause eddy current loss, leakage field, thereby make the transformer heating, avoid the excessive damage wire insulation of press power and make winding deformation, the more secure characteristics of transformer coil quality of institute's processing.
The utility model can be processed other details of hydraulic pressure press of transformer coil and characteristics can just can be cheer and bright by reading the embodiment who hereinafter encyclopaedizes by reference to the accompanying drawings.
Description of drawings
Fig. 1 is the schematic diagram of processing the hydraulic pressure press of transformer coil of the present utility model.
Embodiment
Shown in Fig. 1, the hydraulic pressure press of processing transformer coil of the present utility model comprises frame, worktable, also comprises fuel tank 1, and fuel tank 1 is used for storing fluid to satisfy the oil suction of pump, prevents that the pump suction is empty, the simultaneously oil return of collecting system.The bottom of fuel tank 1 is provided with internal thread fuel outlet ball valve 2, when fuel tank 1 needs to clean, can pass through this valve, emptying fuel tank 1 interior trapped fuel; The level meter 3 that shows with temperature is installed on the sidewall of fuel tank 1, by the glass vision panel on the level meter 3 that shows with temperature, can conveniently observes fuel tank 1 interior height of liquid level, also can show simultaneously the temperature in the fuel tank 1; The top of fuel tank 1 is provided with the fluid level transmitter 4 with analog signal output, and this fluid level transmitter 4 with analog signal output has remote transmission function, can be by the variation of computer screen Real Time Monitoring fuel tank 1 interior liquid level; The top of fuel tank 1 is provided with hydraulic air filter 5, when hydraulic work system, in the fuel tank during liquid level and rise or descend, discharge air by hydraulic air filter 5 from inside to outside during rising, pass through from outside to inside air amount of hydraulic air filter 5 during decline, hydraulic air filter 5 can also purify the air of suction simultaneously; Hydraulic air filter 5 also can be used as oil filler.Also be provided with bimetallic thermometer 11 with the double switch amount on the fuel tank 1, with the fluid level controller 55 of double switch amount with simulation output, the temperature transmitter 51 and the bar type magnetic filter 52 that can Real Time Monitoring fuel tank 1 interior oil temperature change.
Low pressure in-line 100 has low pressure butterfly valve 7 and low pressure compensator 8 from entrance point to the outlet end installed in series in order, the oil outlet of constant flow paddle pump 12 links to each other with the filler opening on low-pressure oil delivery pipe road 101, there is low pressure inlet oil filter 18 on low-pressure oil delivery pipe road 101 and can allows hydraulic oil flow to the low pressure check valve 40 of outlet end to the outlet end installed in series in order from entrance point, pipeline section on the low-pressure oil delivery pipe road 101 between low pressure inlet oil filter 18 and low pressure check valve 40 links to each other with the filler opening of low pressure oil extraction pipeline 102, be in series with the low pressure charged magnetic relief valve 21 of often starting discharging on the low pressure oil extraction pipeline 102, the oil outlet of low pressure oil extraction pipeline 102 links to each other with the oil inlet end of return line 103, the oil outlet on low-pressure oil delivery pipe road 101 by oil distributing pipe road 107 respectively with the filler opening of the first servo hydraulic cylinder system, the filler opening of the second servo hydraulic cylinder system, the filler opening of the 3rd servo hydraulic cylinder system links to each other with the filler opening of the 4th servo hydraulic cylinder system;
Constant flow paddle pump 12 can be under the driving of threephase asynchronous, hydraulic oil in the fuel tank 1 is sucked the oil sucting cavity of constant flow paddle pump 12 by low pressure line phase filter 6, low pressure butterfly valve 7 and low pressure compensator 8, the fluid of oil sucting cavity is along with the rotation of constant flow paddle pump 12 is discharged by pressure oil cavity; The fluid of discharging arrives oil distributing pipe road 107 through low-pressure oil delivery pipe road 101, low pressure inlet oil filter 18, low pressure check valve 40, this moment, the outlet pressure of constant flow paddle pump 12 was set up by the low pressure charged magnetic relief valve 21 of often starting discharging, and the force value of setting can show by shock-proof pressure gauge.
Above-mentioned low pressure butterfly valve 7 can be used to block or connect the pressure oil of fuel tank 1 and constant flow paddle pump 12 oil sucting cavities, is convenient to maintenance and the replacing of constant flow paddle pump 12; Low pressure compensator 8 is a kind of elastic elements, avoids the vibrations of three characteristics of the middle term asynchronous motor 13 and constant flow paddle pump 12 to pass to fuel tank 1, has the vibration-absorbing and reducing noise function.
High pressure in-line 104 has pressure ball valve 9 and high pressure compensator 10 from entrance point to the outlet end installed in series in order, pressure ball valve 9 can be used to block or connect fuel tank 1 and the pressure oil of high-pressure shaft to quantitative plunger pump 14 oil sucting cavities, is convenient to high-pressure shaft to maintenance and the replacing of quantitative plunger pump 14; High pressure compensator 10 can avoid high-pressure shaft to pass to fuel tank 1 to the vibrations of quantitative plunger pump.
High-pressure shaft links to each other with the filler opening on high-pressure pipeline road 105 to the oil outlet of quantitative plunger pump 14, there is high pressure inlet oil filter 19 on high-pressure pipeline road 105 and can allows hydraulic oil flow to the high pressure one-way valve 20 of outlet end to the outlet end installed in series in order from entrance point, pipeline section on the high-pressure pipeline road 105 between high pressure inlet oil filter 19 and high pressure one-way valve 20 links to each other with the filler opening of high pressure oil extraction pipeline 106, be in series with the pilot-operated proportional relief valve 22 with external amplification board on the high pressure oil extraction pipeline 106, the oil outlet of high pressure oil extraction pipeline 106 links to each other with the oil inlet end of return line 103, the oil outlet on high-pressure pipeline road 105 by oil distributing pipe road 107 respectively with the filler opening of the first servo hydraulic cylinder system, the filler opening of the second servo hydraulic cylinder system, the filler opening of the 3rd servo hydraulic cylinder system links to each other with the filler opening of the 4th servo hydraulic cylinder system; Pilot-operated proportional relief valve 22 with external amplification board can carry out step-less adjustment to high-pressure service pump outlet pressure P2.
The first servo hydraulic cylinder system comprises the first servo hydraulic cylinder 331, the first in-line 108, the first return line 109 and the first normal close type 3-position 4-way electrohydraulic control 311, the filler opening of the first servo hydraulic cylinder system is the filler opening of the first in-line 108, be in series with the first high pressure filter 561 that band stops up warning function on the first in-line 108, the oil outlet of the first in-line 108 links to each other with the oil-feed port P of the first normal close type 3-position 4-way electrohydraulic control 311, the filler opening of the first return line 109 links to each other with the drain tap T of the first normal close type 3-position 4-way electrohydraulic control 311, the oil outlet of the first return line 109 links to each other with the oil inlet end of return line 103, the hydraulic fluid port A of normal close type 3-position 4-way electrohydraulic control 311 links to each other with the lower active chamber of the first servo hydraulic cylinder 331 by first time active chamber pipeline road 110, first valve 291 that contends with is installed on first time active chamber pipeline road 110, first valve 291 that contends with has to the unidirectional logical oily path of the lower active chamber of the first servo hydraulic cylinder 331, be provided with the first lower pressure sensor 326 at the first pipeline that contends with between the lower active chamber of valve 291 and the first servo hydraulic cylinder 331 on first time active chamber pipeline road 110, the pipeline that contends with between the valve 291 at the first normal close type 3-position 4-way electrohydraulic control 311 and first on first time active chamber pipeline road 110 links to each other with the oil inlet end of return line 103 by the pipeline that is in series with No. 1 position bi-bit bi-pass solenoid directional control valve 391, the hydraulic fluid port B of normal close type 3-position 4-way electrohydraulic control 311 links to each other with the upper active chamber of the first servo hydraulic cylinder 331 by active chamber pipeline road 111 on first, active chamber pipeline road 111 is provided with the first upward pressure sensor 321 on first, cylinder body and the frame of the first servo hydraulic cylinder 331 are fixedly linked, be provided with the first displacement transducer 371 in the cylinder body of the first servo hydraulic cylinder 331, the first displacement transducer 371 can be measured the piston rod movement position of the first servo hydraulic cylinder 331, and analog electric signal is passed to electric control system; The first control port that contends with valve 291 links to each other by active chamber pipeline road 111 on the pipeline and first.
The working principle of the first servo hydraulic cylinder system is: after 311 energisings of the first normal close type 3-position 4-way electrohydraulic control, difference according to the given signal of electric control system, allow the spool of the first normal close type 3-position 4-way electrohydraulic control 311 change to parallel position, this moment, hydraulic fluid port P and the hydraulic fluid port A of the first normal close type 3-position 4-way electrohydraulic control 311 connected, the hydraulic fluid port B of the first normal close type 3-position 4-way electrohydraulic control 311 and hydraulic fluid port T connect, from the pressure oil of constant flow paddle pump 12 through first time active chamber pipeline road 110, first valve 291 that contends with enters the lower active chamber of the first servo hydraulic cylinder 331, the piston rod of the first servo hydraulic cylinder 331 is up, and hydraulic oil active chamber pipeline road 111 on first in the upper active chamber of the first servo hydraulic cylinder 331, the hydraulic fluid port B of the first normal close type 3-position 4-way electrohydraulic control 311 and hydraulic fluid port T, the first return line 109, return line 103 is got back to fuel tank 1.
The piston rod of the first servo hydraulic cylinder 331 is up put in place after, then the first displacement transducer 371 senders, meta is got back in 311 outages of the first normal close type 3-position 4-way electrohydraulic control, the piston rod stop motion of the first servo hydraulic cylinder 331, the piston rod of the first servo hydraulic cylinder 331 can bottom-uply reach the top of the coil that needs processing at this moment, and the operator can be fixedly linked the piston rod top of pressing plate and the first servo hydraulic cylinder 331.
After the first normal close type 3-position 4-way electrohydraulic control 311 is switched on again, difference according to the given signal of electric control system, allow the spool of the first normal close type 3-position 4-way electrohydraulic control 311 change to the intersection position, this moment, hydraulic fluid port P and the hydraulic fluid port B of the first normal close type 3-position 4-way electrohydraulic control 311 connected, the hydraulic fluid port A of the first normal close type 3-position 4-way electrohydraulic control 311 and hydraulic fluid port T connect, the pipeline that is in series with simultaneously No. 1 position bi-bit bi-pass solenoid directional control valve 391 also is switched on, enter the upper active chamber of the first servo hydraulic cylinder 331 from pressure oil active chamber pipeline road 111 on first of constant flow paddle pump 12, hydraulic oil is through being in series with the pipeline of No. 1 position bi-bit bi-pass solenoid directional control valve 391 in the lower active chamber of the first servo hydraulic cylinder 331, and first time active chamber pipeline road 110, the first hydraulic fluid port A and hydraulic fluid port T that contends with valve 291 first normal close type 3-position 4-way electrohydraulic controls 311, the first return line 109 is got back to fuel tank 1 from return line 103 again to return line 103; In this stage, the piston rod of the first servo hydraulic cylinder 331 is descending fast, and pressing plate also can be along with descending.
Fast after descending the putting in place, the first displacement transducer 371 senders, the pipeline that is in series with No. 1 position bi-bit bi-pass solenoid directional control valve 391 is cut off, hydraulic oil can only flow out the lower active chamber of the first servo hydraulic cylinder 331 by the first contend with valve 291, the piston rod of the first servo hydraulic cylinder 331 begins at a slow speed descending loading, when on-load pressure reaches the pressure of constant flow paddle pump 12 settings, high-pressure shaft starts to quantitative plunger pump 14, the pressure oil of high-pressure low-flow begins to enter the upper active chamber of the first servo hydraulic cylinder 331, winding coil is carried out high pressure to be loaded, electromagnet and low pressure is often started discharging in the charged magnetic relief valve 21 this moment electric, the low pressure charged magnetic relief valve 21 of often starting discharging begins constant flow paddle pump 12 off-loads; When the upper active chamber on-load pressure of the first servo hydraulic cylinder 331 reaches the pressure of default, this pressure is by 321 monitorings of the first upward pressure sensor, the piston rod of the first servo hydraulic cylinder 331 stops descending, and crush board keeps this pressure to reach the technological requirement of winding coil compacting.
After on-load pressure keeps certain hour, the automatical control system sender, allow the spool of the first normal close type 3-position 4-way electrohydraulic control 311 change to parallel position, this moment, hydraulic fluid port P and the hydraulic fluid port A of the first normal close type 3-position 4-way electrohydraulic control 311 connected, the hydraulic fluid port B of the first normal close type 3-position 4-way electrohydraulic control 311 and hydraulic fluid port T connect, the piston rod of the first servo hydraulic cylinder 331 is up, coils unloaded, and compacting is finished.
The second servo hydraulic cylinder system comprises the second servo hydraulic cylinder 332, the second in-line 112, the second return line 113 and the second normal close type 3-position 4-way electrohydraulic control 312, the filler opening of the second servo hydraulic cylinder system is the filler opening of the second in-line 112, be in series with the second high pressure filter 562 that band stops up warning function on the second in-line 112, the oil outlet of the second in-line 112 links to each other with the oil-feed port P of the second normal close type 3-position 4-way electrohydraulic control 312, the filler opening of the second return line 113 links to each other with the drain tap T of the second normal close type 3-position 4-way electrohydraulic control 312, the oil outlet of the second return line 113 links to each other with the oil inlet end of return line 103, the hydraulic fluid port A of the second normal close type 3-position 4-way electrohydraulic control 312 links to each other with the lower active chamber of the second servo hydraulic cylinder 332 by second time active chamber pipeline road 114, second valve 292 that contends with is installed on second time active chamber pipeline road 114, second valve 292 that contends with has to the unidirectional logical oily path of the lower active chamber of the second servo hydraulic cylinder 332, be provided with the second lower pressure sensor 327 at the second pipeline that contends with between the lower active chamber of valve 292 and the second servo hydraulic cylinder 332 on second time active chamber pipeline road 114, the pipeline that contends with between the valve 292 at the second normal close type 3-position 4-way electrohydraulic control 312 and second on second time active chamber pipeline road 114 links to each other with the oil inlet end of return line 103 by the pipeline that is in series with No. 2 position bi-bit bi-pass solenoid directional control valves 392, the hydraulic fluid port B of the second normal close type 3-position 4-way electrohydraulic control 312 links to each other with the upper active chamber of the second servo hydraulic cylinder 332 by active chamber pipeline road 115 on second, active chamber pipeline road 115 is provided with the second upward pressure sensor 322 on second, cylinder body and the frame of the second servo hydraulic cylinder 332 are fixedly linked, be provided with second displacement sensor 372 in the cylinder body of the second servo hydraulic cylinder 332, second displacement sensor 372 can be measured the movement of cylinder block position of the second servo hydraulic cylinder 332, and analog electric signal is passed to electric control system; The second control port that contends with valve 292 links to each other by active chamber pipeline road 115 on the pipeline and second;
The 3rd servo hydraulic cylinder system comprises the 3rd servo hydraulic cylinder 333, the 3rd in-line 116, the 3rd return line 117 and the 3rd normal close type 3-position 4-way electrohydraulic control 313, the filler opening of the 3rd servo hydraulic cylinder system is the filler opening of the 3rd in-line 116, be in series with the third high press filtration device 563 that band stops up warning function on the 3rd in-line 116, the oil outlet of the 3rd in-line 116 links to each other with the oil-feed port P of the 3rd normal close type 3-position 4-way electrohydraulic control 313, the filler opening of the 3rd return line 117 links to each other with the drain tap T of the 3rd normal close type 3-position 4-way electrohydraulic control 313, the oil outlet of the 3rd return line 117 links to each other with the oil inlet end of return line 103, the hydraulic fluid port A of the 3rd normal close type 3-position 4-way electrohydraulic control 313 links to each other with the lower active chamber of the 3rd servo hydraulic cylinder 333 by the 3rd time active chamber pipeline road 118, the 3rd valve 293 that contends with is installed on the 3rd time active chamber pipeline road 118, the 3rd valve 293 that contends with has to the unidirectional logical oily path of the lower active chamber of the 3rd servo hydraulic cylinder 333, be provided with the 3rd lower pressure sensor 328 at the 3rd pipeline that contends with between the lower active chamber of valve 293 and the 3rd servo hydraulic cylinder 333 on the 3rd time active chamber pipeline road 118, the pipeline that contends with between the valve 293 at the 3rd normal close type 3-position 4-way electrohydraulic control the 313 and the 3rd on the 3rd time active chamber pipeline road 118 links to each other with the oil inlet end of return line 103 by the pipeline that is in series with No. 3 position bi-bit bi-pass solenoid directional control valves 393, the hydraulic fluid port B of the 3rd normal close type 3-position 4-way electrohydraulic control 313 links to each other with the upper active chamber of the 3rd servo hydraulic cylinder 333 by active chamber pipeline road 119 on the 3rd, active chamber pipeline road 119 is provided with the 3rd upward pressure sensor 323 on the 3rd, cylinder body and the frame of the 3rd servo hydraulic cylinder 333 are fixedly linked, be provided with triple motion sensor 373 in the cylinder body of the 3rd servo hydraulic cylinder 333, triple motion sensor 373 can be measured the movement of cylinder block position of the 3rd servo hydraulic cylinder 333, and analog electric signal is passed to electric control system; The 3rd control port that contends with valve 293 links to each other by active chamber pipeline road 119 on the pipeline and the 3rd;
The 4th servo hydraulic cylinder system comprises the 4th servo hydraulic cylinder 334, the 4th in-line 120, the 4th return line 121 and the 4th normal close type 3-position 4-way electrohydraulic control 314, the filler opening of the 4th servo hydraulic cylinder system is the filler opening of the 4th in-line 120, be in series with the 4th high pressure filter 564 that band stops up warning function on the 4th in-line 120, the oil outlet of the 4th in-line 120 links to each other with the oil-feed port P of the 4th normal close type 3-position 4-way electrohydraulic control 314, the filler opening of the 4th return line 121 links to each other with the drain tap T of the 4th normal close type 3-position 4-way electrohydraulic control 314, the oil outlet of the 4th return line 121 links to each other with the oil inlet end of return line 103, the hydraulic fluid port A of the 4th normal close type 3-position 4-way electrohydraulic control 314 links to each other with the lower active chamber of the 4th servo hydraulic cylinder 334 by the 4th time active chamber pipeline road 122, the 4th valve 294 that contends with is installed on the 4th time active chamber pipeline road 122, the 4th valve 294 that contends with has to the unidirectional logical oily path of the lower active chamber of the 4th servo hydraulic cylinder 334, be provided with the 4th lower pressure sensor 329 at the 4th pipeline that contends with between the lower active chamber of valve 294 and the 4th servo hydraulic cylinder 334 on the 4th time active chamber pipeline road 122, the pipeline that contends with between the valve 294 at the 4th normal close type 3-position 4-way electrohydraulic control the 314 and the 4th on the 4th time active chamber pipeline road 122 links to each other with the oil inlet end of return line 103 by the pipeline that is in series with No. 3 position bi-bit bi-pass solenoid directional control valves 394, the hydraulic fluid port B of the 4th normal close type 3-position 4-way electrohydraulic control 314 links to each other with the upper active chamber of the 4th servo hydraulic cylinder 334 by active chamber pipeline road 123 on the 4th, active chamber pipeline road 123 is provided with the 4th upward pressure sensor 324 on the 4th, cylinder body and the frame of the 4th servo hydraulic cylinder 334 are fixedly linked, be provided with the 4th displacement transducer 374 in the cylinder body of the 4th servo hydraulic cylinder 334, the 4th displacement transducer 374 can be measured the movement of cylinder block position of the 4th servo hydraulic cylinder 334, and analog electric signal is passed to electric control system; The 4th control port that contends with valve 294 links to each other by active chamber pipeline road 123 on the pipeline and the 4th;
Above-mentioned the second servo hydraulic cylinder system, the 3rd servo hydraulic cylinder system and the 4th servo hydraulic cylinder system and the first servo hydraulic cylinder system work simultaneously, the second servo hydraulic cylinder system, the working principle of the 3rd servo hydraulic cylinder system and the 4th servo hydraulic cylinder system is with the first servo hydraulic cylinder system, the first servo hydraulic cylinder system, the second servo hydraulic cylinder system, but no matter the 3rd servo hydraulic cylinder system and the 4th servo hydraulic cylinder system are fast or at a slow speed all synchronous operation, but and the on-load pressure step-less adjustment, so just avoid winding coil to cause damaging because of overload and unbalance stress.The hydraulic pressure press of transformer coil of processing of the present utility model all can be realized automatic control to the loading of winding coil, unloading, and efficient improves greatly, saves again a large amount of manpowers simultaneously.
On return line 103, to the outlet end installed in series in order return check valve 28, tube still type water cooler 35 and return filter 50 are arranged from entrance point, return filter 50 places are equipped with for the differential pressure switch of measuring return filter 50 two ends pressure reduction, the two ends of return filter 50 link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to fuel tank 1 on the bypass oil pipe at return filter 50 two ends.Tube still type water cooler 35 can be forced system oil return cooling, and the hydraulic oil that is cooled is got back to fuel tank 1 after return filter 50 filters, to guarantee the cleaning of fluid.
Above-mentioned low pressure inlet oil filter 18 places are equipped with for the differential pressure switch of measuring low pressure inlet oil filter 18 two ends pressure reduction, the two ends of low pressure inlet oil filter 18 link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to oil distributing pipe road 107 on the bypass oil pipe at low pressure inlet oil filter 18 two ends; High pressure inlet oil filter 19 places are equipped with for the differential pressure switch of measuring high pressure inlet oil filter 19 two ends pressure reduction, the two ends of high pressure inlet oil filter 19 link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to oil distributing pipe road 107 on the bypass oil pipe at high pressure inlet oil filter 19 two ends.
Above-mentioned oil distributing pipe road 107 links to each other with capsule-type accumulator 27 by accumulation of energy pipeline 124, and accumulation of energy pipeline 124 is provided with stop valve and relief valve 23, and the flow-off of relief valve 23 links to each other with fuel tank 1 by pipeline.Capsule-type accumulator 27 is mainly used to stable system pressure, eliminates pulsation and absorbs hydraulic shock; 23 pairs of capsule-type accumulators 27 of relief valve play the safety protection effect, and when system overpressure, relief valve 23 is opened automatically, and the pressure that will exceed is laid down.Stop valve can make things convenient for maintenance and the replacing of capsule-type accumulator.
Above-mentioned fuel tank 1 links to each other with the filler opening of gear pump 43 by emergent in-line 125, the inlet of emergent in-line 125 is provided with emergency line filter 49, the oil outlet of gear pump 43 links to each other with the filler opening of emergent pipeline road 126, direct-acting overflow valve 47 is installed on the emergent pipeline road 126 and can allows hydraulic oil flow to the emergent one-way valve 48 on oil distributing pipe road 107, the outlet of emergent pipeline road 126 links to each other with oil distributing pipe road 107.Gear pump 43 does not use under normal circumstances, when only having catastrophic failure (such as power failure, high and low press pump group decompression etc.), just uses during the winding coil release that needs to suppress.
Embodiment recited above is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; put mentally not breaking away from the utility model design; various distortion and improvement that the common engineers and technicians in related domain make technical solutions of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (5)
1. can process the hydraulic pressure press of transformer coil, comprise frame, worktable, it is characterized in that: also comprise fuel tank (1), fuel tank (1) links to each other with the filler opening of constant flow paddle pump (12) by low pressure in-line (100), the inlet of low pressure in-line (100) is provided with low pressure line coarse-grain filtering device (6), low pressure in-line (100) has low pressure butterfly valve (7) and low pressure compensator (8) from entrance point to the outlet end installed in series in order, the oil outlet of described constant flow paddle pump (12) links to each other with the filler opening of low-pressure oil delivery pipe road (101), there is low pressure inlet oil filter (18) on low-pressure oil delivery pipe road (101) and can allows hydraulic oil flow to the low pressure check valve (40) of outlet end to the outlet end installed in series in order from entrance point, the pipeline section that is positioned on the low-pressure oil delivery pipe road (101) between low pressure inlet oil filter (18) and the low pressure check valve (40) links to each other with the filler opening of low pressure oil extraction pipeline (102), be in series with the low pressure charged magnetic relief valve (21) of often starting discharging on the low pressure oil extraction pipeline (102), the oil outlet of low pressure oil extraction pipeline (102) links to each other with the oil inlet end of return line (103), the oil outlet on described low-pressure oil delivery pipe road (101) by oil distributing pipe road (107) respectively with the filler opening of the first servo hydraulic cylinder system, the filler opening of the second servo hydraulic cylinder system, the filler opening of the 3rd servo hydraulic cylinder system links to each other with the filler opening of the 4th servo hydraulic cylinder system;
Described fuel tank (1) links to each other with the filler opening of high-pressure shaft to quantitative plunger pump (14) by high pressure in-line (104), the inlet of high pressure in-line (104) is provided with pressure duct coarse-grain filtering device (41), high pressure in-line (104) has pressure ball valve (9) and high pressure compensator (10) from entrance point to the outlet end installed in series in order, described high-pressure shaft links to each other with the filler opening of high-pressure pipeline road (105) to the oil outlet of quantitative plunger pump (14), there is high pressure inlet oil filter (19) on high-pressure pipeline road (105) and can allows hydraulic oil flow to the high pressure one-way valve (20) of outlet end to the outlet end installed in series in order from entrance point, the pipeline section that is positioned on the high-pressure pipeline road (105) between high pressure inlet oil filter (19) and the high pressure one-way valve (20) links to each other with the filler opening of high pressure oil extraction pipeline (106), be in series with the pilot-operated proportional relief valve (22) with external amplification board on the high pressure oil extraction pipeline (106), the oil outlet of high pressure oil extraction pipeline (106) links to each other with the oil inlet end of return line (103), the oil outlet on described high-pressure pipeline road (105) by described oil distributing pipe road (107) respectively with the filler opening of described the first servo hydraulic cylinder system, the filler opening of described the second servo hydraulic cylinder system, the filler opening of described the 3rd servo hydraulic cylinder system links to each other with the filler opening of described the 4th servo hydraulic cylinder system;
Described the first servo hydraulic cylinder system comprises the first servo hydraulic cylinder (331), the first in-line (108), the first return line (109) and the first normal close type 3-position 4-way electrohydraulic control (311), the filler opening of the first servo hydraulic cylinder system is the filler opening of the first in-line (108), be in series with the first high pressure filter (561) that band stops up warning function on the first in-line (108), the oil outlet of the first in-line (108) links to each other with the oil-feed port P of described the first normal close type 3-position 4-way electrohydraulic control (311), the filler opening of the first return line (109) links to each other with the drain tap T of the first normal close type 3-position 4-way electrohydraulic control (311), the oil outlet of the first return line (109) links to each other with the oil inlet end of described return line (103), the hydraulic fluid port A of described normal close type 3-position 4-way electrohydraulic control (311) links to each other with the lower active chamber of described the first servo hydraulic cylinder (331) by first time active chamber pipeline road (110), first valve (291) that contends with is installed on first time active chamber pipeline road (110), first valve (291) that contends with has to the unidirectional logical oily path of the lower active chamber of the first servo hydraulic cylinder (331), be positioned at the first pipeline that contends with between the lower active chamber of valve (291) and described the first servo hydraulic cylinder (331) on first time active chamber pipeline road (110) and be provided with the first lower pressure sensor (326), being positioned at the pipeline that described the first normal close type 3-position 4-way electrohydraulic control (311) and first contends with between the valve (291) on first time active chamber pipeline road (110) links to each other with the oil inlet end of return line (103) by the pipeline that is in series with No. 1 position bi-bit bi-pass solenoid directional control valve (391), the hydraulic fluid port B of described normal close type 3-position 4-way electrohydraulic control (311) links to each other with the upper active chamber of described the first servo hydraulic cylinder (331) by active chamber pipeline road (111) on first, active chamber pipeline road (111) is provided with the first upward pressure sensor (321) on first, cylinder body and the frame of described the first servo hydraulic cylinder (331) are fixedly linked, be provided with the first displacement transducer (371) in the cylinder body of the first servo hydraulic cylinder (331), the first displacement transducer (371) can be measured the movement of cylinder block position of the first servo hydraulic cylinder (331), and analog electric signal is passed to electric control system;
The described first control port that contends with valve (291) links to each other by active chamber pipeline road (111) on the pipeline and described first;
Described the second servo hydraulic cylinder system comprises the second servo hydraulic cylinder (332), the second in-line (112), the second return line (113) and the second normal close type 3-position 4-way electrohydraulic control (312), the filler opening of the second servo hydraulic cylinder system is the filler opening of the second in-line (112), be in series with the second high pressure filter (562) that band stops up warning function on the second in-line (112), the oil outlet of the second in-line (112) links to each other with the oil-feed port P of described the second normal close type 3-position 4-way electrohydraulic control (312), the filler opening of the second return line (113) links to each other with the drain tap T of the second normal close type 3-position 4-way electrohydraulic control (312), the oil outlet of the second return line (113) links to each other with the oil inlet end of described return line (103), the hydraulic fluid port A of described the second normal close type 3-position 4-way electrohydraulic control (312) links to each other with the lower active chamber of described the second servo hydraulic cylinder (332) by second time active chamber pipeline road (114), second valve (292) that contends with is installed on second time active chamber pipeline road (114), second valve (292) that contends with has to the unidirectional logical oily path of the lower active chamber of the second servo hydraulic cylinder (332), be positioned at the second pipeline that contends with between the lower active chamber of valve (292) and described the second servo hydraulic cylinder (332) on second time active chamber pipeline road (114) and be provided with the second lower pressure sensor (327), being positioned at the pipeline that described the second normal close type 3-position 4-way electrohydraulic control (312) and second contends with between the valve (292) on second time active chamber pipeline road (114) links to each other with the oil inlet end of return line (103) by the pipeline that is in series with No. 2 position bi-bit bi-pass solenoid directional control valves (392), the hydraulic fluid port B of described the second normal close type 3-position 4-way electrohydraulic control (312) links to each other with the upper active chamber of described the second servo hydraulic cylinder (332) by active chamber pipeline road (115) on second, active chamber pipeline road (115) is provided with the second upward pressure sensor (322) on second, cylinder body and the frame of described the second servo hydraulic cylinder (332) are fixedly linked, be provided with second displacement sensor (372) in the cylinder body of the second servo hydraulic cylinder (332), second displacement sensor (372) can be measured the movement of cylinder block position of the second servo hydraulic cylinder (332), and analog electric signal is passed to electric control system;
The described second control port that contends with valve (292) links to each other by active chamber pipeline road (115) on the pipeline and described second;
Described the 3rd servo hydraulic cylinder system comprises the 3rd servo hydraulic cylinder (333), the 3rd in-line (116), the 3rd return line (117) and the 3rd normal close type 3-position 4-way electrohydraulic control (313), the filler opening of the 3rd servo hydraulic cylinder system is the filler opening of the 3rd in-line (116), be in series with the third high press filtration device (563) that band stops up warning function on the 3rd in-line (116), the oil outlet of the 3rd in-line (116) links to each other with the oil-feed port P of described the 3rd normal close type 3-position 4-way electrohydraulic control (313), the filler opening of the 3rd return line (117) links to each other with the drain tap T of the 3rd normal close type 3-position 4-way electrohydraulic control (313), the oil outlet of the 3rd return line (117) links to each other with the oil inlet end of described return line (103), the hydraulic fluid port A of described the 3rd normal close type 3-position 4-way electrohydraulic control (313) links to each other with the lower active chamber of described the 3rd servo hydraulic cylinder (333) by the 3rd time active chamber pipeline road (118), the 3rd valve (293) that contends with is installed on the 3rd time active chamber pipeline road (118), the 3rd valve (293) that contends with has to the unidirectional logical oily path of the lower active chamber of the 3rd servo hydraulic cylinder (333), be positioned at the 3rd pipeline that contends with between the lower active chamber of valve (293) and described the 3rd servo hydraulic cylinder (333) on the 3rd time active chamber pipeline road (118) and be provided with the 3rd lower pressure sensor (328), being positioned at the pipeline that described the 3rd normal close type 3-position 4-way electrohydraulic control (313) and the 3rd contends with between the valve (293) on the 3rd time active chamber pipeline road (118) links to each other with the oil inlet end of return line (103) by the pipeline that is in series with No. 3 position bi-bit bi-pass solenoid directional control valves (393), the hydraulic fluid port B of described the 3rd normal close type 3-position 4-way electrohydraulic control (313) links to each other with the upper active chamber of described the 3rd servo hydraulic cylinder (333) by active chamber pipeline road (119) on the 3rd, active chamber pipeline road (119) is provided with the 3rd upward pressure sensor (323) on the 3rd, cylinder body and the frame of described the 3rd servo hydraulic cylinder (333) are fixedly linked, be provided with triple motion sensor (373) in the cylinder body of the 3rd servo hydraulic cylinder (333), triple motion sensor (373) can be measured the movement of cylinder block position of the 3rd servo hydraulic cylinder (333), and analog electric signal is passed to electric control system;
The described the 3rd control port that contends with valve (293) links to each other by active chamber pipeline road (119) on the pipeline and the described the 3rd;
Described the 4th servo hydraulic cylinder system comprises the 4th servo hydraulic cylinder (334), the 4th in-line (120), the 4th return line (121) and the 4th normal close type 3-position 4-way electrohydraulic control (314), the filler opening of the 4th servo hydraulic cylinder system is the filler opening of the 4th in-line (120), be in series with the 4th high pressure filter (564) that band stops up warning function on the 4th in-line (120), the oil outlet of the 4th in-line (120) links to each other with the oil-feed port P of described the 4th normal close type 3-position 4-way electrohydraulic control (314), the filler opening of the 4th return line (121) links to each other with the drain tap T of the 4th normal close type 3-position 4-way electrohydraulic control (314), the oil outlet of the 4th return line (121) links to each other with the oil inlet end of described return line (103), the hydraulic fluid port A of described the 4th normal close type 3-position 4-way electrohydraulic control (314) links to each other with the lower active chamber of described the 4th servo hydraulic cylinder (334) by the 4th time active chamber pipeline road (122), the 4th valve (294) that contends with is installed on the 4th time active chamber pipeline road (122), the 4th valve (294) that contends with has to the unidirectional logical oily path of the lower active chamber of the 4th servo hydraulic cylinder (334), be positioned at the 4th pipeline that contends with between the lower active chamber of valve (294) and described the 4th servo hydraulic cylinder (334) on the 4th time active chamber pipeline road (122) and be provided with the 4th lower pressure sensor (329), being positioned at the pipeline that described the 4th normal close type 3-position 4-way electrohydraulic control (314) and the 4th contends with between the valve (294) on the 4th time active chamber pipeline road (122) links to each other with the oil inlet end of return line (103) by the pipeline that is in series with No. 3 position bi-bit bi-pass solenoid directional control valves (394), the hydraulic fluid port B of described the 4th normal close type 3-position 4-way electrohydraulic control (314) links to each other with the upper active chamber of described the 4th servo hydraulic cylinder (334) by active chamber pipeline road (123) on the 4th, active chamber pipeline road (123) is provided with the 4th upward pressure sensor (324) on the 4th, cylinder body and the frame of described the 4th servo hydraulic cylinder (334) are fixedly linked, be provided with the 4th displacement transducer (374) in the cylinder body of the 4th servo hydraulic cylinder (334), the 4th displacement transducer (374) can be measured the movement of cylinder block position of the 4th servo hydraulic cylinder (334), and analog electric signal is passed to electric control system;
The described the 4th control port that contends with valve (294) links to each other by active chamber pipeline road (123) on the pipeline and the described the 4th;
Described return line (103) is upper to have return check valve (28), tube still type water cooler (35) and return filter (50) from entrance point to the outlet end installed in series in order, return filter (50) locates to be equipped with the differential pressure switch for measuring return filter (50) two ends pressure reduction, the two ends of return filter (50) link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to described fuel tank (1) on the bypass oil pipe at return filter (50) two ends.
2. the hydraulic pressure press of processing transformer coil according to claim 1, it is characterized in that described low pressure inlet oil filter (18) locates to be equipped with for the differential pressure switch of measuring low pressure inlet oil filter (18) two ends pressure reduction, the two ends of low pressure inlet oil filter (18) link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to described oil distributing pipe road (107) on the bypass oil pipe at low pressure inlet oil filter (18) two ends; Described high pressure inlet oil filter (19) locates to be equipped with the differential pressure switch for measuring high pressure inlet oil filter (19) two ends pressure reduction, the two ends of high pressure inlet oil filter (19) link to each other by the bypass oil pipe, are in series with the one-way valve that can allow hydraulic oil flow to described oil distributing pipe road (107) on the bypass oil pipe at high pressure inlet oil filter (19) two ends.
3. the hydraulic pressure press of processing transformer coil according to claim 2, it is characterized in that described oil distributing pipe road (107) links to each other with capsule-type accumulator (27) by accumulation of energy pipeline (124), accumulation of energy pipeline (124) is provided with stop valve and relief valve (23), and the flow-off of relief valve (23) links to each other with described fuel tank (1) by pipeline.
4. according to claim 1 and 2 or the 3 described hydraulic pressure presses of processing transformer coil, it is characterized in that described fuel tank (1) links to each other with the filler opening of gear pump (43) by emergent in-line (125), the inlet of emergent in-line (125) is provided with emergency line filter (49), the oil outlet of described gear pump (43) links to each other with the filler opening of emergent pipeline road (126), on the emergent pipeline road (126) direct-acting overflow valve (47) is installed and can allows hydraulic oil flow to the emergent one-way valve (48) on described oil distributing pipe road (107), the outlet of emergent pipeline road (126) links to each other with oil distributing pipe road (107).
5. the hydraulic pressure press of processing transformer coil according to claim 4, the bottom that it is characterized in that described fuel tank (1) is provided with internal thread fuel outlet ball valve (2), the level meter (3) that shows with temperature is installed on the sidewall of fuel tank (1), the top of fuel tank (1) is provided with the fluid level transmitter (4) with analog signal output, and fuel tank (1) is provided with hydraulic air filter (5), bimetallic thermometer (11) with the double switch amount, fluid level controller (55) with the double switch amount, with simulation output, temperature transmitter (51) and bar type magnetic filter (52) that the interior oil temperature of energy Real Time Monitoring fuel tank (1) changes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220435967 CN202746309U (en) | 2012-08-30 | 2012-08-30 | Hydraulic press machine capable of machining transformer coil |
Applications Claiming Priority (1)
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CN 201220435967 CN202746309U (en) | 2012-08-30 | 2012-08-30 | Hydraulic press machine capable of machining transformer coil |
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CN202746309U true CN202746309U (en) | 2013-02-20 |
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CN 201220435967 Expired - Fee Related CN202746309U (en) | 2012-08-30 | 2012-08-30 | Hydraulic press machine capable of machining transformer coil |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103321975A (en) * | 2013-06-05 | 2013-09-25 | 天津航天瑞莱科技有限公司 | Low-high pressure soft-start hydraulic oil source system |
CN103671313A (en) * | 2012-08-30 | 2014-03-26 | 北京索普液压机电有限公司 | Hydraulic pressing machine capable of machining transformer coil |
CN104696297A (en) * | 2013-12-09 | 2015-06-10 | 江苏江淮动力股份有限公司 | Hydraulic control system for hydraulic drive cutting table and elevator |
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2012
- 2012-08-30 CN CN 201220435967 patent/CN202746309U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103671313A (en) * | 2012-08-30 | 2014-03-26 | 北京索普液压机电有限公司 | Hydraulic pressing machine capable of machining transformer coil |
CN103671313B (en) * | 2012-08-30 | 2016-07-06 | 北京索普液压机电有限公司 | The hydraulic pressure press of transformer coil can be processed |
CN103321975A (en) * | 2013-06-05 | 2013-09-25 | 天津航天瑞莱科技有限公司 | Low-high pressure soft-start hydraulic oil source system |
CN103321975B (en) * | 2013-06-05 | 2016-08-10 | 天津航天瑞莱科技有限公司 | A kind of low-high pressure soft start hydraulic oil source system |
CN104696297A (en) * | 2013-12-09 | 2015-06-10 | 江苏江淮动力股份有限公司 | Hydraulic control system for hydraulic drive cutting table and elevator |
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