CN103671313B - The hydraulic pressure press of transformer coil can be processed - Google Patents
The hydraulic pressure press of transformer coil can be processed Download PDFInfo
- Publication number
- CN103671313B CN103671313B CN201210314012.2A CN201210314012A CN103671313B CN 103671313 B CN103671313 B CN 103671313B CN 201210314012 A CN201210314012 A CN 201210314012A CN 103671313 B CN103671313 B CN 103671313B
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- hydraulic cylinder
- working chamber
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of hydraulic pressure press processing transformer coil, including fuel tank, fuel tank is connected with the oil-in of constant flow paddle pump by low pressure in-line, the oil-out of constant flow paddle pump is connected with the oil-in on low-pressure oil delivery pipe road, there is low pressure inlet oil filter on low-pressure oil delivery pipe road from entrance point to port of export installed in series in order and can allow the hydraulic oil flow low pressure check valve to the port of export, on low-pressure oil delivery pipe road, the pipeline section between low pressure inlet oil filter and low pressure check valve is connected with the oil-in of low pressure drain line, low pressure drain line is in series with the normally opened off-load electromagnetic relief valve of low pressure.Its object is to provide a kind of production efficiency high, coil discontinuity equalization can be avoided to make winding insulation destroy, avoid that press power is too small can produce bigger air gap, cause eddy-current loss, leakage field, so that transformator 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 machined production is more secure.
Description
Technical field
The present invention relates to a kind of hydraulic pressure press processing transformer coil.
Background technology
The three of transformator are big, and the basic element of character is divided into iron core, winding coil and cooler, and winding coil is not only the galvanic circle of transformator, the heart of transformator especially.Just coiling complete after winding coil, because of different winding modes and different operation techniques, winding coil can be made to there is bigger size difference in the axial direction；For ensureing that same specification coil axial dimension is consistent, traditional way is to adopt upper and lower pressing plate, and four brails add the artificial load mode of nut；There are following four big disadvantages in the method:
1), time-consuming, effort, inefficiency are manually loaded.
2), coil discontinuity equalization；Unbalanced stress easily makes winding insulation destroy and cause transformer damage.
3), winding coil press power be not easily controlled, and cannot monitor, press power is too small can produce bigger air gap, causes eddy-current loss, leakage field so that transformator heating.Press power is excessive, it is possible to damages wire insulation and makes winding deformation.
4), axial dimension is not easily controlled.Although load, coil dimension has reached designing requirement, but after loading force removes, coil can exceed design load because of bounce-back.
5) axial dimension is only by hand dipping, and real monitoring when cannot realize.
Summary of the invention
It is an object of the invention to provide a kind of production efficiency high, coil discontinuity equalization can be avoided to make winding insulation destroy, avoid that press power is too small can produce bigger air gap, cause eddy-current loss, leakage field, so that transformator 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 machined production is more secure.
nullThe hydraulic pressure press of the transformer coil processed of the present invention，Including frame、Workbench，Also include fuel tank，Fuel tank is connected with the oil-in of constant flow paddle pump by low pressure in-line，The import department of low pressure in-line is provided with low pressure line coarse filter，Low pressure in-line has low pressure butterfly valve and low pressure compensator from entrance point to port of export installed in series in order，The oil-out of described constant flow paddle pump is connected with the oil-in on low-pressure oil delivery pipe road，There is low pressure inlet oil filter on low-pressure oil delivery pipe road from entrance point to port of export installed in series in order and can allow the hydraulic oil flow low pressure check valve to the port of export，On low-pressure oil delivery pipe road, the pipeline section between low pressure inlet oil filter and low pressure check valve is connected with the oil-in of low pressure drain line，Low pressure drain line is in series with the normally opened off-load electromagnetic relief valve of low pressure，The oil-out of low pressure drain line is connected with the oil inlet end of return line，The oil-out on described low-pressure oil delivery pipe road by oil distributing pipe road respectively with the oil-in of the first servo hydraulic cylinder system、The oil-in of the second servo hydraulic cylinder system、The oil-in of the 3rd servo hydraulic cylinder system and the oil-in of the 4th servo hydraulic cylinder system are connected；
nullDescribed fuel tank is connected with the oil-in of the axial quantitative plunger pump of high pressure by high pressure in-line，The import department of high pressure in-line is provided with pressure duct coarse filter，High pressure in-line has pressure ball valve and high pressure compensator from entrance point to port of export installed in series in order，The oil-out of the axial quantitative plunger pump of described high pressure is connected with the oil-in on high-pressure pipeline road，There is high pressure inlet oil filter on high-pressure pipeline road from entrance point to port of export installed in series in order and can allow the hydraulic oil flow high pressure check valve to the port of export，On high-pressure pipeline road, the pipeline section between high pressure inlet oil filter and high pressure check valve is connected with the oil-in of high pressure drain line，High pressure drain line is in series with the pilot-operated proportional relief valve with external amplification board，The oil-out of high pressure drain line is connected with the oil inlet end of return line，The oil-out on described high-pressure pipeline road by described oil distributing pipe road respectively with the oil-in of described first servo hydraulic cylinder system、The oil-in of described second servo hydraulic cylinder system、The oil-in of described 3rd servo hydraulic cylinder system is connected with the oil-in of described 4th servo hydraulic cylinder system；
nullDescribed first servo hydraulic cylinder system includes the first servo hydraulic cylinder、First in-line、First return line and the first closed type 3-position 4-way electrohydraulic servo valve，The oil-in that oil-in is the first in-line of the first servo hydraulic cylinder system，First in-line is in series with the first high pressure filter with blocking warning function，The oil-out of the first in-line is connected with the oil-feed port P of described first closed type 3-position 4-way electrohydraulic servo valve，The oil-in of the first return line and the drain tap T-phase of the first closed type 3-position 4-way electrohydraulic servo valve are even，The oil-out of the first return line is connected with the oil inlet end of described return line，The hydraulic fluid port A of described closed type 3-position 4-way electrohydraulic servo valve is connected with the lower working chamber of described first servo hydraulic cylinder by first time working chamber pipeline road，First time working chamber pipeline road is provided with first contend with valve，First contend with valve have to the lower working chamber of the first servo hydraulic cylinder unidirectional logical oil path，On first time working chamber pipeline road first contend with valve and described first servo hydraulic cylinder lower working chamber between pipeline on be provided with the first lower pressure sensor，First time working chamber pipeline road is connected with the oil inlet end of return line by being in series with the pipeline of No. 1 position bi-bit bi-pass solenoid directional control valve at described first closed type 3-position 4-way electrohydraulic servo valve and the first pipeline contended with between valve，The hydraulic fluid port B of described closed type 3-position 4-way electrohydraulic servo valve passes through working chamber pipeline road on first and is connected with the upper working chamber of described first servo hydraulic cylinder，On first, working chamber pipeline road is provided with the first upward pressure sensor，The cylinder body of described first servo hydraulic cylinder and frame are fixedly linked，The first displacement transducer it is provided with in the cylinder body of the first servo hydraulic cylinder，First displacement transducer can measure the movement of cylinder block position of the first servo hydraulic cylinder，And analog electrical signal is passed to electric control system；
Described first control port contending with valve is connected with working chamber pipeline road on described first by pipeline；
nullDescribed second servo hydraulic cylinder system includes the second servo hydraulic cylinder、Second in-line、Second return line and the second closed type 3-position 4-way electrohydraulic servo valve，The oil-in that oil-in is the second in-line of the second servo hydraulic cylinder system，Second in-line is in series with the second high pressure filter with blocking warning function，The oil-out of the second in-line is connected with the oil-feed port P of described second closed type 3-position 4-way electrohydraulic servo valve，The oil-in of the second return line and the drain tap T-phase of the second closed type 3-position 4-way electrohydraulic servo valve are even，The oil-out of the second return line is connected with the oil inlet end of described return line，The hydraulic fluid port A of described second closed type 3-position 4-way electrohydraulic servo valve is connected with the lower working chamber of described second servo hydraulic cylinder by second time working chamber pipeline road，Second time working chamber pipeline road is provided with second contend with valve，Second contend with valve have to the lower working chamber of the second servo hydraulic cylinder unidirectional logical oil path，On second time working chamber pipeline road second contend with valve and described second servo hydraulic cylinder lower working chamber between pipeline on be provided with the second lower pressure sensor，Second time working chamber pipeline road is connected with the oil inlet end of return line by being in series with the pipeline of No. 2 position bi-bit bi-pass solenoid directional control valves at described second closed type 3-position 4-way electrohydraulic servo valve and the second pipeline contended with between valve，The hydraulic fluid port B of described second closed type 3-position 4-way electrohydraulic servo valve passes through working chamber pipeline road on second and is connected with the upper working chamber of described second servo hydraulic cylinder，On second, working chamber pipeline road is provided with the second upward pressure sensor，The cylinder body of described second servo hydraulic cylinder and frame are fixedly linked，Second displacement sensor it is provided with in the cylinder body of the second servo hydraulic cylinder，Second displacement sensor can measure the movement of cylinder block position of the second servo hydraulic cylinder，And analog electrical signal is passed to electric control system；
Described second control port contending with valve is connected with working chamber pipeline road on described second by pipeline；
nullDescribed 3rd servo hydraulic cylinder system includes the 3rd servo hydraulic cylinder、3rd in-line、3rd return line and the 3rd closed type 3-position 4-way electrohydraulic servo valve，The oil-in that oil-in is the 3rd in-line of the 3rd servo hydraulic cylinder system，3rd in-line is in series with the 3rd high pressure filter with blocking warning function，The oil-out of the 3rd in-line is connected with the oil-feed port P of described 3rd closed type 3-position 4-way electrohydraulic servo valve，The oil-in of the 3rd return line and the drain tap T-phase of the 3rd closed type 3-position 4-way electrohydraulic servo valve are even，The oil-out of the 3rd return line is connected with the oil inlet end of described return line，The hydraulic fluid port A of described 3rd closed type 3-position 4-way electrohydraulic servo valve is connected with the lower working chamber of described 3rd servo hydraulic cylinder by the 3rd time working chamber pipeline road，3rd time working chamber pipeline road is provided with the 3rd contend with valve，3rd contend with valve have to the lower working chamber of the 3rd servo hydraulic cylinder unidirectional logical oil path，On 3rd time working chamber pipeline road the 3rd contend with valve and described 3rd servo hydraulic cylinder lower working chamber between pipeline on be provided with the 3rd lower pressure sensor，3rd time working chamber pipeline road is connected with the oil inlet end of return line by being in series with the pipeline of No. 3 position bi-bit bi-pass solenoid directional control valves at described 3rd closed type 3-position 4-way electrohydraulic servo valve and the 3rd pipeline contended with between valve，The hydraulic fluid port B of described 3rd closed type 3-position 4-way electrohydraulic servo valve passes through working chamber pipeline road on the 3rd and is connected with the upper working chamber of described 3rd servo hydraulic cylinder，On 3rd, working chamber pipeline road is provided with the 3rd upward pressure sensor，The cylinder body of described 3rd servo hydraulic cylinder and frame are fixedly linked，It is provided with triple motion sensor in the cylinder body of the 3rd servo hydraulic cylinder，Triple motion sensor can measure the movement of cylinder block position of the 3rd servo hydraulic cylinder，And analog electrical signal is passed to electric control system；
Described 3rd control port contending with valve is connected with working chamber pipeline road on the described 3rd by pipeline；
nullDescribed 4th servo hydraulic cylinder system includes the 4th servo hydraulic cylinder、4th in-line、4th return line and the 4th closed type 3-position 4-way electrohydraulic servo valve，The oil-in that oil-in is the 4th in-line of the 4th servo hydraulic cylinder system，4th in-line is in series with the 4th high pressure filter with blocking warning function，The oil-out of the 4th in-line is connected with the oil-feed port P of described 4th closed type 3-position 4-way electrohydraulic servo valve，The oil-in of the 4th return line and the drain tap T-phase of the 4th closed type 3-position 4-way electrohydraulic servo valve are even，The oil-out of the 4th return line is connected with the oil inlet end of described return line，The hydraulic fluid port A of described 4th closed type 3-position 4-way electrohydraulic servo valve is connected with the lower working chamber of described 4th servo hydraulic cylinder by the 4th time working chamber pipeline road，4th time working chamber pipeline road is provided with the 4th contend with valve，4th contend with valve have to the lower working chamber of the 4th servo hydraulic cylinder unidirectional logical oil path，On 4th time working chamber pipeline road the 4th contend with valve and described 4th servo hydraulic cylinder lower working chamber between pipeline on be provided with the 4th lower pressure sensor，4th time working chamber pipeline road is connected with the oil inlet end of return line by being in series with the pipeline of No. 3 position bi-bit bi-pass solenoid directional control valves at described 4th closed type 3-position 4-way electrohydraulic servo valve and the 4th pipeline contended with between valve，The hydraulic fluid port B of described 4th closed type 3-position 4-way electrohydraulic servo valve passes through working chamber pipeline road on the 4th and is connected with the upper working chamber of described 4th servo hydraulic cylinder，On 4th, working chamber pipeline road is provided with the 4th upward pressure sensor，The cylinder body of described 4th servo hydraulic cylinder and frame are fixedly linked，It is provided with the 4th displacement transducer in the cylinder body of the 4th servo hydraulic cylinder，4th displacement transducer can measure the movement of cylinder block position of the 4th servo hydraulic cylinder，And analog electrical signal is passed to electric control system；
Described 4th control port contending with valve is connected with working chamber pipeline road on the described 4th by pipeline；
Described return line there are return check valve, shell and tube water cooler and return filter from entrance point to port of export installed in series in order, return filter place is provided with the pressure difference switch for measuring return filter two ends pressure reduction, the two ends of return filter are connected by bypassing oil pipe, and the bypass oil pipe at return filter two ends is in series with the check valve that hydraulic oil flow can be allowed to described fuel tank.
The hydraulic pressure press of the transformer coil processed of the present invention, wherein said low pressure inlet oil filter place is provided with the pressure difference switch for measuring low pressure inlet oil filter two ends pressure reduction, the two ends of low pressure inlet oil filter are connected by bypassing oil pipe, and the bypass oil pipe at low pressure inlet oil filter two ends is in series with the check valve that hydraulic oil flow can be allowed to described oil distributing pipe road；Described high pressure inlet oil filter place is provided with the pressure difference switch for measuring high pressure inlet oil filter two ends pressure reduction, the two ends of high pressure inlet oil filter are connected by bypassing oil pipe, and the bypass oil pipe at high pressure inlet oil filter two ends is in series with the check valve that hydraulic oil flow can be allowed to described oil distributing pipe road.
The hydraulic pressure press of the transformer coil processed of the present invention, wherein said oil distributing pipe road is connected with capsule-type accumulator by accumulation of energy pipeline, and accumulation of energy pipeline is provided with stop valve and overflow valve, and the overfall of overflow valve is connected with described fuel tank by pipeline.
The hydraulic pressure press of the transformer coil processed of the present invention, wherein said fuel tank is connected with the oil-in of gear pump by emergent in-line, the import department of emergent in-line is provided with emergency line filter, the oil-out of described gear pump is connected with the oil-in of emergent pipeline road, being provided with direct-acting overflow valve on emergent pipeline road and hydraulic oil flow can be allowed to the emergent check valve on described oil distributing pipe road, the outlet of emergent pipeline road is connected with oil distributing pipe road.
The hydraulic pressure press of the transformer coil processed of the present invention, the bottom of wherein said fuel tank is provided with female thread fuel outlet ball valve, the sidewall of fuel tank is provided with the liquidometer shown with temperature, the top of fuel tank is provided with the fluid level transmitter of analog signal output, the top of fuel tank is provided with hydraulic air filter, fuel tank be provided with hydraulic air filter, the bimetallic thermometer with double switch amount, the liquid level controller with double switch amount, with simulation output, can the temperature transmitter of oil temperature change and bar type magnetic filter in monitor in real time fuel tank.
nullThe hydraulic pressure press of the transformer coil processed of the present invention，Its on first working chamber pipeline road be provided with the first upward pressure sensor，The cylinder body of described first servo hydraulic cylinder and frame are fixedly linked，The first displacement transducer it is provided with in the cylinder body of the first servo hydraulic cylinder，First displacement transducer can measure the movement of cylinder block position of the first servo hydraulic cylinder，And analog electrical signal is passed to electric control system，The structural design exclusive owing to have employed the present invention，Therefore the loading that the hydraulic pressure press of the transformer coil processed of the present invention is to winding coil、Unloading all can realize automatically controlling，And there is production efficiency height，Coil discontinuity equalization can be avoided to make winding insulation destroy，Avoid that press power is too small can produce bigger air gap，Cause eddy-current loss、Leakage field，So that transformator heating，Avoid the excessive damage wire insulation of press power and make winding deformation，The feature that the transformer coil quality of machined production is more secure.
The present invention can process other details of the hydraulic pressure press of transformer coil and feature can by read the embodiment encyclopaedized below in conjunction with accompanying drawing just can be cheer and bright.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the hydraulic pressure press of the transformer coil processed of the present invention.
Detailed description of the invention
As is shown in fig. 1, the hydraulic pressure press of the transformer coil processed of the present invention, including frame, workbench, also include fuel tank 1, fuel tank 1 is used for storing fluid to meet the oil suction of pump, it is prevented that pumping is empty, collects the oil return of system simultaneously.The bottom of fuel tank 1 is provided with female thread fuel outlet ball valve 2, when fuel tank 1 needs to clean, can pass through this valve, trapped fuel in emptying fuel tank 1；The sidewall of fuel tank 1 is provided with the liquidometer 3 shown with temperature, by the glass vision panel on the liquidometer 3 that shows with temperature, can conveniently observe height of liquid level in fuel tank 1, may also display the temperature in fuel tank 1 simultaneously；The top of fuel tank 1 is provided with the fluid level transmitter 4 of analog signal output, and this fluid level transmitter 4 with analog signal output has remote transmission function, it is possible to by the change of liquid level in computer screen monitor in real time fuel tank 1；The top of fuel tank 1 is provided with hydraulic air filter 5, when hydraulic work system, rise or fall during liquid level in fuel tank, from inside to outside by hydraulic air filter 5 air-out during rising, sucking air from outside to inside by hydraulic air filter 5 during decline, hydraulic air filter 5 can also purify the air of suction simultaneously；Hydraulic air filter 5 is alternatively arranged as oil filler.Fuel tank 1 is additionally provided with the bimetallic thermometer 11 with double switch amount, liquid level controller 55 with double switch amount with simulation output, can the temperature transmitter 51 of oil temperature change and bar type magnetic filter 52 in monitor in real time fuel tank 1.
Fuel tank 1 is connected with the oil-in of constant flow paddle pump 12 by low pressure in-line 100; the import department of low pressure in-line 100 is provided with low pressure line coarse filter 6; oil absorption filter 6 has coarse filtration function; ensure that the hydraulic oil sucking constant flow paddle pump 12 has certain cleannes, thus protecting constant flow paddle pump 12 not ground wound by bulky grain medium.
nullLow pressure in-line 100 has low pressure butterfly valve 7 and low pressure compensator 8 from entrance point to port of export installed in series in order，The oil-out of constant flow paddle pump 12 is connected with the oil-in on low-pressure oil delivery pipe road 101，There is low pressure inlet oil filter 18 on low-pressure oil delivery pipe road 101 from entrance point to port of export installed in series in order and can allow the hydraulic oil flow low pressure check valve 40 to the port of export，On low-pressure oil delivery pipe road 101, the pipeline section between low pressure inlet oil filter 18 and low pressure check valve 40 is connected with the oil-in of low pressure drain line 102，Low pressure drain line 102 is in series with the normally opened off-load electromagnetic relief valve 21 of low pressure，The oil-out of low pressure drain line 102 is connected with the oil inlet end of return line 103，The oil-out on low-pressure oil delivery pipe road 101 by oil distributing pipe road 107 respectively with the oil-in of the first servo hydraulic cylinder system、The oil-in of the second servo hydraulic cylinder system、The oil-in of the 3rd servo hydraulic cylinder system and the oil-in of the 4th servo hydraulic cylinder system are connected；
Constant flow paddle pump 12 can under the driving of threephase asynchronous, hydraulic oil in fuel tank 1 is sucked the oil sucting cavity of constant flow paddle pump 12 by low pressure line coarse filter 6, low pressure butterfly valve 7 and low pressure compensator 8, and the fluid of oil sucting cavity is discharged along with the pressure oil cavity that is rotated through of constant flow paddle pump 12；Discharge fluid through low-pressure oil delivery pipe road 101, low pressure inlet oil filter 18, low pressure check valve 40 arrive oil distributing pipe road 107, now the outlet pressure of constant flow paddle pump 12 is set up by the normally opened off-load electromagnetic relief valve 21 of low pressure, and the force value of setting can be shown by shock-proof pressure gauge.
Above-mentioned low pressure butterfly valve 7 can be used to the pressure oil blocking or connecting fuel tank 1 with constant flow paddle pump 12 oil sucting cavity, it is simple to the maintenance of constant flow paddle pump 12 and replacing；Low pressure compensator 8 is a kind of flexible member, it is to avoid fuel tank 1 is passed in the vibrations of three characteristics of the middle term asynchronous motor 13 and constant flow paddle pump 12, has vibration-absorbing and reducing noise function.
Fuel tank 1 is connected with the oil-in of the axial quantitative plunger pump 14 of high pressure by high pressure in-line 104; the import department of high pressure in-line 104 is provided with pressure duct coarse filter 41; pressure duct coarse filter 41 has coarse filtration function; ensure that the hydraulic oil sucking the axial quantitative plunger pump of high pressure 14 has certain cleannes, thus protecting the axial quantitative plunger pump 14 of high pressure not ground wound by bulky grain medium.
High pressure in-line 104 has pressure ball valve 9 and high pressure compensator 10 from entrance point to port of export installed in series in order, pressure ball valve 9 can be used to the pressure oil blocking or connecting fuel tank 1 with high pressure axial quantitative plunger pump 14 oil sucting cavity, it is simple to the maintenance of the axial quantitative plunger pump 14 of high pressure and replacing；High pressure compensator 10 can avoid the vibrations of the axial quantitative plunger pump of high pressure to pass to fuel tank 1.
nullThe oil-out of the axial quantitative plunger pump 14 of high pressure is connected with the oil-in on high-pressure pipeline road 105，There is high pressure inlet oil filter 19 on high-pressure pipeline road 105 from entrance point to port of export installed in series in order and can allow the hydraulic oil flow high pressure check valve 20 to the port of export，On high-pressure pipeline road 105, the pipeline section between high pressure inlet oil filter 19 and high pressure check valve 20 is connected with the oil-in of high pressure drain line 106，High pressure drain line 106 is in series with the pilot-operated proportional relief valve 22 with external amplification board，The oil-out of high pressure drain line 106 is connected with the oil inlet end of return line 103，The oil-out on high-pressure pipeline road 105 by oil distributing pipe road 107 respectively with the oil-in of the first servo hydraulic cylinder system、The oil-in of the second servo hydraulic cylinder system、The oil-in of the 3rd servo hydraulic cylinder system and the oil-in of the 4th servo hydraulic cylinder system are connected；High pressure pump outlet pressure P 2 can be carried out step-less adjustment by the pilot-operated proportional relief valve 22 with external amplification board.
nullFirst servo hydraulic cylinder system includes the first servo hydraulic cylinder 331、First in-line 108、First return line 109 and the first closed type 3-position 4-way electrohydraulic servo valve 311，The oil-in of the first servo hydraulic cylinder system is the oil-in of the first in-line 108，First in-line 108 is in series with the first high pressure filter 561 with blocking warning function，The oil-out of the first in-line 108 and the oil-feed port P of the first closed type 3-position 4-way electrohydraulic servo valve 311 are connected，The oil-in of the first return line 109 and the drain tap T-phase of the first closed type 3-position 4-way electrohydraulic servo valve 311 are even，The oil-out of the first return line 109 is connected with the oil inlet end of return line 103，The hydraulic fluid port A of closed type 3-position 4-way electrohydraulic servo valve 311 is connected with the lower working chamber of the first servo hydraulic cylinder 331 by first time working chamber pipeline road 110，First time working chamber pipeline road 110 is provided with first contend with valve 291，First contend with valve 291 have to the lower working chamber of the first servo hydraulic cylinder 331 unidirectional logical oil path，First time working chamber pipeline road 110 is provided with the first lower pressure sensor 326 on the first pipeline contended with between valve 291 and the lower working chamber of the first servo hydraulic cylinder 331，On first time working chamber pipeline road 110, at the first closed type 3-position 4-way electrohydraulic servo valve 311 and the first pipeline contended with between valve 291, the oil inlet end of the pipeline and return line 103 by being in series with No. 1 position bi-bit bi-pass solenoid directional control valve 391 is connected，The hydraulic fluid port B of closed type 3-position 4-way electrohydraulic servo valve 311 passes through working chamber pipeline road 111 on first and is connected with the upper working chamber of the first servo hydraulic cylinder 331，On first, working chamber pipeline road 111 is provided with the first upward pressure sensor 321，The cylinder body of the first servo hydraulic cylinder 331 and frame are fixedly linked，The first displacement transducer 371 it is provided with in the cylinder body of the first servo hydraulic cylinder 331，First displacement transducer 371 can measure the piston rod movement position of the first servo hydraulic cylinder 331，And analog electrical signal is passed to electric control system；First control port contending with valve 291 is connected by working chamber pipeline road on pipeline and first 111.
nullThe operation principle of the first servo hydraulic cylinder system is: after the first closed type 3-position 4-way electrohydraulic servo valve 311 energising，Difference according to electric control system Setting signal，The spool allowing the first closed type 3-position 4-way electrohydraulic servo valve 311 changes to parallel position，Now the hydraulic fluid port P and hydraulic fluid port A of the first closed type 3-position 4-way electrohydraulic servo valve 311 connects，The hydraulic fluid port B and hydraulic fluid port T of the first closed type 3-position 4-way electrohydraulic servo valve 311 connects，From the pressure oil of constant flow paddle pump 12 through first time working chamber pipeline road 110、First valve 291 that contends with enters the lower working chamber of the first servo hydraulic cylinder 331，The piston rod of the first servo hydraulic cylinder 331 is up，And hydraulic oil working chamber pipeline road 111 on first in the upper working chamber of the first servo hydraulic cylinder 331、The hydraulic fluid port B and hydraulic fluid port T of the first closed type 3-position 4-way electrohydraulic servo valve 311、First return line 109、Return line 103 returns 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 sender, first closed type 3-position 4-way electrohydraulic servo valve 311 power-off returns to middle position, the piston rod stop motion of the first servo hydraulic cylinder 331, now the piston rod of the first servo hydraulic cylinder 331 bottom-up can reach the top of the coil needing processing, and the piston rod top of pressing plate and the first servo hydraulic cylinder 331 can be fixedly linked by operator.
nullAfter first closed type 3-position 4-way electrohydraulic servo valve 311 is once again powered up，Difference according to electric control system Setting signal，The spool allowing the first closed type 3-position 4-way electrohydraulic servo valve 311 changes to intersection position，Now the hydraulic fluid port P and hydraulic fluid port B of the first closed type 3-position 4-way electrohydraulic servo valve 311 connects，The hydraulic fluid port A and hydraulic fluid port T of the first closed type 3-position 4-way electrohydraulic servo valve 311 connects，The pipeline being simultaneously in series with No. 1 position bi-bit bi-pass solenoid directional control valve 391 is also switched on，Pressure oil working chamber pipeline road 111 on first from constant flow paddle pump 12 enters the upper working chamber of the first servo hydraulic cylinder 331，In the lower working chamber of the first servo hydraulic cylinder 331, hydraulic oil is concatenated the pipeline of No. 1 position bi-bit bi-pass solenoid directional control valve 391、And first time working chamber pipeline road 110、The first hydraulic fluid port A and hydraulic fluid port T contending with valve 291 first closed type 3-position 4-way electrohydraulic servo valve 311、First return line 109 arrives return line 103，Fuel tank 1 is returned to again from return line 103；In this stage, the piston rod fast downlink of the first servo hydraulic cylinder 331, pressing plate is as well as descending.
After fast downlink puts in place, first displacement transducer 371 sender, the pipeline being in series with No. 1 position bi-bit bi-pass solenoid directional control valve 391 is cut off, hydraulic oil flows out the lower working chamber of the first servo hydraulic cylinder 331 only by first valve 291 that contends with, the piston rod of the first servo hydraulic cylinder 331 starts descending loading at a slow speed, when on-load pressure reaches the pressure that constant flow paddle pump 12 sets, the axial quantitative plunger pump 14 of high pressure starts, the pressure oil of high-pressure low-flow initially enters the upper working chamber of the first servo hydraulic cylinder 331, winding coil is carried out high pressure loading, and the electric magnet in low pressure normally opened off-load electromagnetic relief valve 21 this moment electric, the normally opened off-load electromagnetic relief valve 21 of low pressure starts constant flow paddle pump 12 off-load；When the upper working chamber on-load pressure of the first servo hydraulic cylinder 331 reaches the pressure of default, this pressure is monitored by the first upward pressure sensor 321, 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.
First valve 291 that contends with can allow the accurate pressurize of piston rod of the first servo hydraulic cylinder 331 descending, allows operating pressure not produce fluctuation, thus can ensure that the dynamics that coil is pressurizeed by pressing plate meets designing requirement all the time, and ensure the quality of product.
After on-load pressure keeps certain time, electric-control system sender, the spool allowing the first closed type 3-position 4-way electrohydraulic servo valve 311 changes to parallel position, now the hydraulic fluid port P and hydraulic fluid port A of the first closed type 3-position 4-way electrohydraulic servo valve 311 connects, the hydraulic fluid port B and hydraulic fluid port T of the first closed type 3-position 4-way electrohydraulic servo valve 311 connects, the piston rod of the first servo hydraulic cylinder 331 is up, and coils unloaded, compacting completes.
nullSecond servo hydraulic cylinder system includes the second servo hydraulic cylinder 332、Second in-line 112、Second return line 113 and the second closed type 3-position 4-way electrohydraulic servo valve 312，The oil-in of the second servo hydraulic cylinder system is the oil-in of the second in-line 112，Second in-line 112 is in series with the second high pressure filter 562 with blocking warning function，The oil-out of the second in-line 112 and the oil-feed port P of the second closed type 3-position 4-way electrohydraulic servo valve 312 are connected，The oil-in of the second return line 113 and the drain tap T-phase of the second closed type 3-position 4-way electrohydraulic servo valve 312 are even，The oil-out of the second return line 113 is connected with the oil inlet end of return line 103，The hydraulic fluid port A of the second closed type 3-position 4-way electrohydraulic servo valve 312 is connected with the lower working chamber of the second servo hydraulic cylinder 332 by second time working chamber pipeline road 114，Second time working chamber pipeline road 114 is provided with second contend with valve 292，Second contend with valve 292 have to the lower working chamber of the second servo hydraulic cylinder 332 unidirectional logical oil path，Second time working chamber pipeline road 114 is provided with the second lower pressure sensor 327 on the second pipeline contended with between valve 292 and the lower working chamber of the second servo hydraulic cylinder 332，On second time working chamber pipeline road 114, at the second closed type 3-position 4-way electrohydraulic servo valve 312 and the second pipeline contended with between valve 292, the oil inlet end of the pipeline and return line 103 by being in series with No. 2 position bi-bit bi-pass solenoid directional control valves 392 is connected，The hydraulic fluid port B of the second closed type 3-position 4-way electrohydraulic servo valve 312 passes through working chamber pipeline road 115 on second and is connected with the upper working chamber of the second servo hydraulic cylinder 332，On second, working chamber pipeline road 115 is provided with the second upward pressure sensor 322，The cylinder body of the second servo hydraulic cylinder 332 and frame are fixedly linked，It is provided with second displacement sensor 372 in the cylinder body of the second servo hydraulic cylinder 332，Second displacement sensor 372 can measure the movement of cylinder block position of the second servo hydraulic cylinder 332，And analog electrical signal is passed to electric control system；Second control port contending with valve 292 is connected by working chamber pipeline road on pipeline and second 115；
null3rd servo hydraulic cylinder system includes the 3rd servo hydraulic cylinder 333、3rd in-line 116、3rd return line 117 and the 3rd closed type 3-position 4-way electrohydraulic servo valve 313，The oil-in that oil-in is the 3rd in-line 116 of the 3rd servo hydraulic cylinder system，3rd in-line 116 is in series with the 3rd high pressure filter 563 with blocking warning function，The oil-out of the 3rd in-line 116 and the oil-feed port P of the 3rd closed type 3-position 4-way electrohydraulic servo valve 313 are connected，The oil-in of the 3rd return line 117 and the drain tap T-phase of the 3rd closed type 3-position 4-way electrohydraulic servo valve 313 are even，The oil-out of the 3rd return line 117 is connected with the oil inlet end of return line 103，The hydraulic fluid port A of the 3rd closed type 3-position 4-way electrohydraulic servo valve 313 is connected with the lower working chamber of the 3rd servo hydraulic cylinder 333 by the 3rd time working chamber pipeline road 118，3rd time working chamber pipeline road 118 is provided with the 3rd contend with valve 293，3rd contend with valve 293 have to the lower working chamber of the 3rd servo hydraulic cylinder 333 unidirectional logical oil path，3rd time working chamber pipeline road 118 is provided with the 3rd lower pressure sensor 328 on the 3rd pipeline contended with between valve 293 and the lower working chamber of the 3rd servo hydraulic cylinder 333，On 3rd time working chamber pipeline road 118, at the 3rd closed type 3-position 4-way electrohydraulic servo valve 313 and the 3rd pipeline contended with between valve 293, the oil inlet end of the pipeline and return line 103 by being in series with No. 3 position bi-bit bi-pass solenoid directional control valves 393 is connected，The hydraulic fluid port B of the 3rd closed type 3-position 4-way electrohydraulic servo valve 313 passes through working chamber pipeline road 119 on the 3rd and is connected with the upper working chamber of the 3rd servo hydraulic cylinder 333，On 3rd, working chamber pipeline road 119 is provided with the 3rd upward pressure sensor 323，The cylinder body of the 3rd servo hydraulic cylinder 333 and frame are fixedly linked，It is provided with triple motion sensor 373 in the cylinder body of the 3rd servo hydraulic cylinder 333，Triple motion sensor 373 can measure the movement of cylinder block position of the 3rd servo hydraulic cylinder 333，And analog electrical signal is passed to electric control system；3rd control port contending with valve 293 is connected by working chamber pipeline road on pipeline and the 3rd 119；
null4th servo hydraulic cylinder system includes the 4th servo hydraulic cylinder 334、4th in-line 120、4th return line 121 and the 4th closed type 3-position 4-way electrohydraulic servo valve 314，The oil-in that oil-in is the 4th in-line 120 of the 4th servo hydraulic cylinder system，4th in-line 120 is in series with the 4th high pressure filter 564 with blocking warning function，The oil-out of the 4th in-line 120 and the oil-feed port P of the 4th closed type 3-position 4-way electrohydraulic servo valve 314 are connected，The oil-in of the 4th return line 121 and the drain tap T-phase of the 4th closed type 3-position 4-way electrohydraulic servo valve 314 are even，The oil-out of the 4th return line 121 is connected with the oil inlet end of return line 103，The hydraulic fluid port A of the 4th closed type 3-position 4-way electrohydraulic servo valve 314 is connected with the lower working chamber of the 4th servo hydraulic cylinder 334 by the 4th time working chamber pipeline road 122，4th time working chamber pipeline road 122 is provided with the 4th contend with valve 294，4th contend with valve 294 have to the lower working chamber of the 4th servo hydraulic cylinder 334 unidirectional logical oil path，4th time working chamber pipeline road 122 is provided with the 4th lower pressure sensor 329 on the 4th pipeline contended with between valve 294 and the lower working chamber of the 4th servo hydraulic cylinder 334，On 4th time working chamber pipeline road 122, at the 4th closed type 3-position 4-way electrohydraulic servo valve 314 and the 4th pipeline contended with between valve 294, the oil inlet end of the pipeline and return line 103 by being in series with No. 3 position bi-bit bi-pass solenoid directional control valves 394 is connected，The hydraulic fluid port B of the 4th closed type 3-position 4-way electrohydraulic servo valve 314 passes through working chamber pipeline road 123 on the 4th and is connected with the upper working chamber of the 4th servo hydraulic cylinder 334，On 4th, working chamber pipeline road 123 is provided with the 4th upward pressure sensor 324，The cylinder body of the 4th servo hydraulic cylinder 334 and frame are fixedly linked，It is provided with the 4th displacement transducer 374 in the cylinder body of the 4th servo hydraulic cylinder 334，4th displacement transducer 374 can measure the movement of cylinder block position of the 4th servo hydraulic cylinder 334，And analog electrical signal is passed to electric control system；4th control port contending with valve 294 is connected by working chamber pipeline road on pipeline and the 4th 123；
Above-mentioned second servo hydraulic cylinder system, 3rd servo hydraulic cylinder system and the 4th servo hydraulic cylinder system work with the first servo hydraulic cylinder system simultaneously, second servo hydraulic cylinder system, the operation principle of the 3rd servo hydraulic cylinder system and the 4th servo hydraulic cylinder system is with the first servo hydraulic cylinder system, first servo hydraulic cylinder system, second servo hydraulic cylinder system, no matter 3rd servo hydraulic cylinder system and the 4th servo hydraulic cylinder system are quick or at a slow speed all can synchronous operations, and on-load pressure can step-less adjustment, winding coil is thus avoided to cause because of overload and unbalance stress damaging.The loading of winding coil, unloading all can be realized automatically controlling by the hydraulic pressure press of the transformer coil processed of the present invention, and efficiency is greatly improved, and save again a large amount of manpower simultaneously.
Return line 103 there are return check valve 28, shell and tube water cooler 35 and return filter 50 from entrance point to port of export installed in series in order, return filter 50 place is provided with the pressure difference switch for measuring return filter 50 two ends pressure reduction, the two ends of return filter 50 are connected by bypassing oil pipe, and the bypass oil pipe at return filter 50 two ends is in series with the check valve that hydraulic oil flow can be allowed to fuel tank 1.System oil return can be carried out forcing cooling by shell and tube water cooler 35, and cooled hydraulic oil returns to fuel tank 1 after return filter 50 filters, to ensure the cleaning of fluid.
Above-mentioned low pressure inlet oil filter 18 place is provided with the pressure difference switch for measuring low pressure inlet oil filter 18 two ends pressure reduction, the two ends of low pressure inlet oil filter 18 are connected by bypassing oil pipe, and the bypass oil pipe at low pressure inlet oil filter 18 two ends is in series with the check valve that hydraulic oil flow can be allowed to oil distributing pipe road 107；High pressure inlet oil filter 19 place is provided with the pressure difference switch for measuring high pressure inlet oil filter 19 two ends pressure reduction, the two ends of high pressure inlet oil filter 19 are connected by bypassing oil pipe, and the bypass oil pipe at high pressure inlet oil filter 19 two ends is in series with the check valve that hydraulic oil flow can be allowed to oil distributing pipe road 107.
Above-mentioned oil distributing pipe road 107 is connected with capsule-type accumulator 27 by accumulation of energy pipeline 124, and accumulation of energy pipeline 124 is provided with stop valve and overflow valve 23, and the overfall of overflow valve 23 is connected with fuel tank 1 by pipeline.Capsule-type accumulator 27 is mainly used to stabilisation systems pressure, eliminates pulsation and absorb hydraulic shock；Capsule-type accumulator 27 is played safeguard protection effect by overflow valve 23, and when system overpressure, overflow valve 23 automatically opens up, and is laid down by the pressure exceeded.Stop valve can facilitate maintenance and the replacing of capsule-type accumulator.
Above-mentioned fuel tank 1 is connected with the oil-in of gear pump 43 by emergent in-line 125, the import department of emergent in-line 125 is provided with emergency line filter 49, the oil-out of gear pump 43 is connected with the oil-in of emergent pipeline road 126, being provided with direct-acting overflow valve 47 on emergent pipeline road 126 and can allow the hydraulic oil flow emergent check valve 48 to oil distributing pipe road 107, the outlet of emergent pipeline road 126 is connected with oil distributing pipe road 107.Gear pump 43 does not use under normal circumstances, only (such as power failure, high and low press pump group decompression etc.) during catastrophic failure, it is necessary to just use during by the winding coil release suppressed.
Embodiment described above is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; putting mentally without departing from present invention design; various deformation that technical solution of the present invention is made by this area ordinary skill technical staff and improvement, all should fall in the protection domain that claims of the present invention are determined.
Claims (4)
- null1. can process the hydraulic pressure press of transformer coil，Including frame、Workbench，It is characterized in that: also include fuel tank (1)，Fuel tank (1) is connected by the oil-in of low pressure in-line (100) with constant flow paddle pump (12)，The import department of low pressure in-line (100) is provided with low pressure line coarse filter (6)，Low pressure in-line (100) has low pressure butterfly valve (7) and low pressure compensator (8) from entrance point to port of export installed in series in order，The oil-out of described constant flow paddle pump (12) is connected with the oil-in of low-pressure oil delivery pipe road (101)，There is low pressure inlet oil filter (18) on low-pressure oil delivery pipe road (101) from entrance point to port of export installed in series in order and can allow the hydraulic oil flow low pressure check valve (40) to the port of export，The pipeline section being positioned between low pressure inlet oil filter (18) and low pressure check valve (40) on low-pressure oil delivery pipe road (101) is connected with the oil-in of low pressure drain line (102)，Low pressure drain line (102) is in series with the normally opened off-load electromagnetic relief valve (21) of low pressure，The oil-out of low pressure drain line (102) is connected with the oil inlet end of return line (103)，The oil-out of described low-pressure oil delivery pipe road (101) by oil distributing pipe road (107) respectively with the oil-in of the first servo hydraulic cylinder system、The oil-in of the second servo hydraulic cylinder system、The oil-in of the 3rd servo hydraulic cylinder system and the oil-in of the 4th servo hydraulic cylinder system are connected；nullDescribed fuel tank (1) is connected by the oil-in of high pressure in-line (104) with the axial quantitative plunger pump of high pressure (14)，The import department of high pressure in-line (104) is provided with pressure duct coarse filter (41)，High pressure in-line (104) has pressure ball valve (9) and high pressure compensator (10) from entrance point to port of export installed in series in order，The oil-out of the axial quantitative plunger pump of described high pressure (14) is connected with the oil-in of high-pressure pipeline road (105)，There is high pressure inlet oil filter (19) on high-pressure pipeline road (105) from entrance point to port of export installed in series in order and can allow the hydraulic oil flow high pressure check valve (20) to the port of export，The pipeline section being positioned between high pressure inlet oil filter (19) and high pressure check valve (20) on high-pressure pipeline road (105) is connected with the oil-in of high pressure drain line (106)，High pressure drain line (106) is in series with the pilot-operated proportional relief valve (22) with external amplification board，The oil-out of high pressure drain line (106) is connected with the oil inlet end of return line (103)，The oil-out of described high-pressure pipeline road (105) by described oil distributing pipe road (107) respectively with the oil-in of described first servo hydraulic cylinder system、The oil-in of described second servo hydraulic cylinder system、The oil-in of described 3rd servo hydraulic cylinder system is connected with the oil-in of described 4th servo hydraulic cylinder system；nullDescribed first servo hydraulic cylinder system includes the first servo hydraulic cylinder (331)、First in-line (108)、First return line (109) and the first closed type 3-position 4-way electrohydraulic servo valve (311)，The oil-in that oil-in is the first in-line (108) of the first servo hydraulic cylinder system，First in-line (108) is in series with the first high pressure filter (561) with blocking warning function，The oil-out of the first in-line (108) is connected with the oil-feed port P of described first closed type 3-position 4-way electrohydraulic servo valve (311)，The oil-in of the first return line (109) and the drain tap T-phase of the first closed type 3-position 4-way electrohydraulic servo valve (311) are even，The oil-out of the first return line (109) is connected with the oil inlet end of described return line (103)，The hydraulic fluid port A of described closed type 3-position 4-way electrohydraulic servo valve (311) is connected with the lower working chamber of described first servo hydraulic cylinder (331) by first time working chamber pipeline road (110)，First time working chamber pipeline road (110) is provided with first contend with valve (291)，First contend with valve (291) have to the lower working chamber of the first servo hydraulic cylinder (331) unidirectional logical oil path，First time working chamber pipeline road (110) is positioned at first contend with valve (291) and described first servo hydraulic cylinder (331) lower working chamber between pipeline be provided with the first lower pressure sensor (326)，The oil inlet end being positioned at described first closed type 3-position 4-way electrohydraulic servo valve (311) and the first pipeline contended with between valve (291) pipeline and return line (103) by being in series with No. 1 position bi-bit bi-pass solenoid directional control valve (391) on first time working chamber pipeline road (110) is connected，The hydraulic fluid port B of described closed type 3-position 4-way electrohydraulic servo valve (311) passes through working chamber pipeline road (111) on first and is connected with the upper working chamber of described first servo hydraulic cylinder (331)，On first, working chamber pipeline road (111) is provided with the first upward pressure sensor (321)，The cylinder body of described first servo hydraulic cylinder (331) and frame are fixedly linked，The first displacement transducer (371) it is provided with in the cylinder body of the first servo hydraulic cylinder (331)，First displacement transducer (371) can measure the movement of cylinder block position of the first servo hydraulic cylinder (331)，And analog electrical signal is passed to electric control system；Described first control port contending with valve (291) is connected with working chamber pipeline road (111) on described first by pipeline；nullDescribed second servo hydraulic cylinder system includes the second servo hydraulic cylinder (332)、Second in-line (112)、Second return line (113) and the second closed type 3-position 4-way electrohydraulic servo valve (312)，The oil-in that oil-in is the second in-line (112) of the second servo hydraulic cylinder system，Second in-line (112) is in series with the second high pressure filter (562) with blocking warning function，The oil-out of the second in-line (112) is connected with the oil-feed port P of described second closed type 3-position 4-way electrohydraulic servo valve (312)，The oil-in of the second return line (113) and the drain tap T-phase of the second closed type 3-position 4-way electrohydraulic servo valve (312) are even，The oil-out of the second return line (113) is connected with the oil inlet end of described return line (103)，The hydraulic fluid port A of described second closed type 3-position 4-way electrohydraulic servo valve (312) is connected with the lower working chamber of described second servo hydraulic cylinder (332) by second time working chamber pipeline road (114)，Second time working chamber pipeline road (114) is provided with second contend with valve (292)，Second contend with valve (292) have to the lower working chamber of the second servo hydraulic cylinder (332) unidirectional logical oil path，Second time working chamber pipeline road (114) is positioned at second contend with valve (292) and described second servo hydraulic cylinder (332) lower working chamber between pipeline be provided with the second lower pressure sensor (327)，The oil inlet end being positioned at described second closed type 3-position 4-way electrohydraulic servo valve (312) and the second pipeline contended with between valve (292) pipeline and return line (103) by being in series with No. 2 positions bi-bit bi-pass solenoid directional control valve (392) on second time working chamber pipeline road (114) is connected，The hydraulic fluid port B of described second closed type 3-position 4-way electrohydraulic servo valve (312) passes through working chamber pipeline road (115) on second and is connected with the upper working chamber of described second servo hydraulic cylinder (332)，On second, working chamber pipeline road (115) is provided with the second upward pressure sensor (322)，The cylinder body of described second servo hydraulic cylinder (332) and frame are fixedly linked，Second displacement sensor (372) it is provided with in the cylinder body of the second servo hydraulic cylinder (332)，Second displacement sensor (372) can measure the movement of cylinder block position of the second servo hydraulic cylinder (332)，And analog electrical signal is passed to electric control system；Described second control port contending with valve (292) is connected with working chamber pipeline road (115) on described second by pipeline；nullDescribed 3rd servo hydraulic cylinder system includes the 3rd servo hydraulic cylinder (333)、3rd in-line (116)、3rd return line (117) and the 3rd closed type 3-position 4-way electrohydraulic servo valve (313)，The oil-in of the 3rd servo hydraulic cylinder system is the oil-in of the 3rd in-line (116)，3rd in-line (116) is in series with the 3rd high pressure filter (563) with blocking warning function，The oil-out of the 3rd in-line (116) is connected with the oil-feed port P of described 3rd closed type 3-position 4-way electrohydraulic servo valve (313)，The oil-in of the 3rd return line (117) and the drain tap T-phase of the 3rd closed type 3-position 4-way electrohydraulic servo valve (313) are even，The oil-out of the 3rd return line (117) is connected with the oil inlet end of described return line (103)，The hydraulic fluid port A of described 3rd closed type 3-position 4-way electrohydraulic servo valve (313) is connected with the lower working chamber of described 3rd servo hydraulic cylinder (333) by the 3rd time working chamber pipeline road (118)，3rd time working chamber pipeline road (118) is provided with the 3rd contend with valve (293)，3rd contend with valve (293) have to the lower working chamber of the 3rd servo hydraulic cylinder (333) unidirectional logical oil path，3rd time working chamber pipeline road (118) is positioned at the 3rd contend with valve (293) and described 3rd servo hydraulic cylinder (333) lower working chamber between pipeline be provided with the 3rd lower pressure sensor (328)，The oil inlet end being positioned at described 3rd closed type 3-position 4-way electrohydraulic servo valve (313) and the 3rd pipeline contended with between valve (293) pipeline and return line (103) by being in series with No. 3 positions bi-bit bi-pass solenoid directional control valve (393) on 3rd time working chamber pipeline road (118) is connected，The hydraulic fluid port B of described 3rd closed type 3-position 4-way electrohydraulic servo valve (313) passes through working chamber pipeline road (119) on the 3rd and is connected with the upper working chamber of described 3rd servo hydraulic cylinder (333)，On 3rd, working chamber pipeline road (119) is provided with the 3rd upward pressure sensor (323)，The cylinder body of described 3rd servo hydraulic cylinder (333) and frame are fixedly linked，It is provided with triple motion sensor (373) in the cylinder body of the 3rd servo hydraulic cylinder (333)，Triple motion sensor (373) can measure the movement of cylinder block position of the 3rd servo hydraulic cylinder (333)，And analog electrical signal is passed to electric control system；Described 3rd control port contending with valve (293) is connected with working chamber pipeline road (119) on the described 3rd by pipeline；nullDescribed 4th servo hydraulic cylinder system includes the 4th servo hydraulic cylinder (334)、4th in-line (120)、4th return line (121) and the 4th closed type 3-position 4-way electrohydraulic servo valve (314)，The oil-in of the 4th servo hydraulic cylinder system is the oil-in of the 4th in-line (120)，4th in-line (120) is in series with the 4th high pressure filter (564) with blocking warning function，The oil-out of the 4th in-line (120) is connected with the oil-feed port P of described 4th closed type 3-position 4-way electrohydraulic servo valve (314)，The oil-in of the 4th return line (121) and the drain tap T-phase of the 4th closed type 3-position 4-way electrohydraulic servo valve (314) are even，The oil-out of the 4th return line (121) is connected with the oil inlet end of described return line (103)，The hydraulic fluid port A of described 4th closed type 3-position 4-way electrohydraulic servo valve (314) is connected with the lower working chamber of described 4th servo hydraulic cylinder (334) by the 4th time working chamber pipeline road (122)，4th time working chamber pipeline road (122) is provided with the 4th contend with valve (294)，4th contend with valve (294) have to the lower working chamber of the 4th servo hydraulic cylinder (334) unidirectional logical oil path，4th time working chamber pipeline road (122) is positioned at the 4th contend with valve (294) and described 4th servo hydraulic cylinder (334) lower working chamber between pipeline be provided with the 4th lower pressure sensor (329)，The oil inlet end being positioned at described 4th closed type 3-position 4-way electrohydraulic servo valve (314) and the 4th pipeline contended with between valve (294) pipeline and return line (103) by being in series with No. 3 positions bi-bit bi-pass solenoid directional control valve (394) on 4th time working chamber pipeline road (122) is connected，The hydraulic fluid port B of described 4th closed type 3-position 4-way electrohydraulic servo valve (314) passes through working chamber pipeline road (123) on the 4th and is connected with the upper working chamber of described 4th servo hydraulic cylinder (334)，On 4th, working chamber pipeline road (123) is provided with the 4th upward pressure sensor (324)，The cylinder body of described 4th servo hydraulic cylinder (334) and frame are fixedly linked，It is provided with the 4th displacement transducer (374) in the cylinder body of the 4th servo hydraulic cylinder (334)，4th displacement transducer (374) can measure the movement of cylinder block position of the 4th servo hydraulic cylinder (334)，And analog electrical signal is passed to electric control system；Described 4th control port contending with valve (294) is connected with working chamber pipeline road (123) on the described 4th by pipeline；Described return line (103) there are return check valve (28), shell and tube water cooler (35) and return filter (50) from entrance point to port of export installed in series in order, return filter (50) place is provided with the pressure difference switch for measuring return filter (50) two ends pressure reduction, the two ends of return filter (50) are connected by bypassing oil pipe, and the bypass oil pipe at return filter (50) two ends is in series with the check valve that hydraulic oil flow can be allowed to described fuel tank (1)；The bottom of described fuel tank (1) is provided with female thread fuel outlet ball valve (2), and the sidewall of fuel tank (1) is provided with the liquidometer (3) shown with temperature, and described liquidometer is provided with glass vision panel；The top of fuel tank (1) is provided with the fluid level transmitter (4) of analog signal output, and described fluid level transmitter is connected with outer computer signal；The top of fuel tank (1) is provided with hydraulic air filter (5), and described hydraulic air filter is provided with oil filler；Described fuel tank be additionally provided with the bimetallic thermometer (11) with double switch amount, liquid level controller (55) with double switch amount, with simulation output, can the temperature transmitter (51) of the interior oil temperature change of monitor in real time fuel tank (1) and bar type magnetic filter (52).
- 2. the hydraulic pressure press processing transformer coil according to claim 1, it is characterized in that described low pressure inlet oil filter (18) place is provided with the pressure difference switch for measuring low pressure inlet oil filter (18) two ends pressure reduction, the two ends of low pressure inlet oil filter (18) are connected by bypassing oil pipe, and the bypass oil pipe at low pressure inlet oil filter (18) two ends is in series with the check valve that hydraulic oil flow can be allowed to described oil distributing pipe road (107)；Described high pressure inlet oil filter (19) place is provided with the pressure difference switch for measuring high pressure inlet oil filter (19) two ends pressure reduction, the two ends of high pressure inlet oil filter (19) are connected by bypassing oil pipe, and the bypass oil pipe at high pressure inlet oil filter (19) two ends is in series with the check valve that hydraulic oil flow can be allowed to described oil distributing pipe road (107).
- 3. the hydraulic pressure press processing transformer coil according to claim 2, it is characterized in that described oil distributing pipe road (107) is connected with capsule-type accumulator (27) by accumulation of energy pipeline (124), accumulation of energy pipeline (124) is provided with stop valve and overflow valve (23), and the overfall of overflow valve (23) is connected with described fuel tank (1) by pipeline.
- 4. the hydraulic pressure press of the transformer coil processed according to claim 1 or 2 or 3, it is characterized in that described fuel tank (1) is connected with the oil-in of gear pump (43) by emergent in-line (125), the import department of emergent in-line (125) is provided with emergency line filter (49), the oil-out of described gear pump (43) is connected with the oil-in of emergent pipeline road (126), emergent pipeline road (126) is provided with direct-acting overflow valve (47) and hydraulic oil flow can be allowed to the emergent check valve (48) of described oil distributing pipe road (107), the outlet of emergent pipeline road (126) is connected with oil distributing pipe road (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314012.2A CN103671313B (en) | 2012-08-30 | 2012-08-30 | The hydraulic pressure press of transformer coil can be processed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314012.2A CN103671313B (en) | 2012-08-30 | 2012-08-30 | The hydraulic pressure press of transformer coil can be processed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671313A CN103671313A (en) | 2014-03-26 |
| CN103671313B true CN103671313B (en) | 2016-07-06 |
Family
ID=50309832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210314012.2A Active CN103671313B (en) | 2012-08-30 | 2012-08-30 | The hydraulic pressure press of transformer coil can be processed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671313B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257614B (en) * | 2015-11-25 | 2017-09-12 | 上海电气液压气动有限公司 | A kind of hydraulic jack high-precise synchronization control complexes of super large jumbo |
| CN106438520A (en) * | 2016-12-17 | 2017-02-22 | 中国重型机械研究院股份公司 | Cooling bed lifting hydraulic synchronous control device |
| CN110307199B (en) * | 2018-03-27 | 2021-08-10 | 比亚迪股份有限公司 | Hydraulic control system |
| CN113123766A (en) * | 2021-05-11 | 2021-07-16 | 姜经志 | Energy-saving and environment-friendly high-reliability pump control hydraulic system of hydraulic pumping unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121485A (en) * | 2011-01-27 | 2011-07-13 | 济南易久自动化技术有限公司 | Controllable centralized oil supply hydraulic system with multiple press power for multiple hydraulic press machines |
| CN201998452U (en) * | 2010-12-31 | 2011-10-05 | 四川东阳汽车制动材料制造有限公司 | Hydraulic system of hot-press hydraulic press |
| CN202746309U (en) * | 2012-08-30 | 2013-02-20 | 北京索普液压机电有限公司 | Hydraulic press machine capable of machining transformer coil |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131532A (en) * | 1997-10-28 | 1999-05-18 | Shin Caterpillar Mitsubishi Ltd | Control circuit for construction machine |
| US6253588B1 (en) * | 2000-04-07 | 2001-07-03 | General Motors Corporation | Quick plastic forming of aluminum alloy sheet metal |
| JP2002120096A (en) * | 2000-10-18 | 2002-04-23 | Amada Co Ltd | Hydraulic operating system and handling method thereof |
-
2012
- 2012-08-30 CN CN201210314012.2A patent/CN103671313B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201998452U (en) * | 2010-12-31 | 2011-10-05 | 四川东阳汽车制动材料制造有限公司 | Hydraulic system of hot-press hydraulic press |
| CN102121485A (en) * | 2011-01-27 | 2011-07-13 | 济南易久自动化技术有限公司 | Controllable centralized oil supply hydraulic system with multiple press power for multiple hydraulic press machines |
| CN202746309U (en) * | 2012-08-30 | 2013-02-20 | 北京索普液压机电有限公司 | Hydraulic press machine capable of machining transformer coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671313A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103671313B (en) | The hydraulic pressure press of transformer coil can be processed | |
| CN102862316B (en) | Press machine and hydraulic control system thereof | |
| CN110415930A (en) | The online vacuum oiling device of conservator and its application method | |
| CN202746309U (en) | Hydraulic press machine capable of machining transformer coil | |
| CN103775326A (en) | Power recovery test-bed for mechanical-compensation type hydraulic pump | |
| CN202833029U (en) | Air compressor | |
| CN204357841U (en) | A kind of cleaning oil-sealing testing apparatus | |
| CN203685769U (en) | Oil cylinder test board control system | |
| CN208221209U (en) | A kind of Mobile hydraulic station | |
| CN103967850A (en) | Oil tank assembly for hydraulic system and use method thereof | |
| CN212028213U (en) | Hydraulic lifting station for workpiece turnover equipment rack | |
| CN206860412U (en) | A kind of air compressor air storage tank automatic sewage discharging device | |
| CN201228627Y (en) | Test stand for hydraulic pump | |
| CN104214142A (en) | Manifold truck and hydraulic control system thereof | |
| CN107939755A (en) | Swivel coupling hydraulic loaded pressure charging system | |
| CN217130933U (en) | Accurate oiling device | |
| CN207728648U (en) | A kind of integrated hydraulic power unit of high pressure high cleanliness two | |
| CN104715859A (en) | Auxiliary cooling and filtering system of electrical equipment | |
| CN110217407B (en) | Test device of hydraulic actuator cylinder | |
| CN109142109A (en) | Shaft radial load loading device | |
| CN212028238U (en) | Ultrahigh-pressure food sterilization equipment control hydraulic station | |
| CN210371403U (en) | Wind-powered electricity generation gear box flexible pin axle test bench hydraulic system | |
| CN204610442U (en) | A kind of launching tube demoulding power plant | |
| CN211116943U (en) | Cooling system for oil tank of press | |
| CN208778366U (en) | A kind of swimming pool propeller hydraulic drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |