CN213928948U - Quick liquid filling system for multi-main working plunger cylinder of large die forging press for changing water into oil - Google Patents
Quick liquid filling system for multi-main working plunger cylinder of large die forging press for changing water into oil Download PDFInfo
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- CN213928948U CN213928948U CN202022511914.8U CN202022511914U CN213928948U CN 213928948 U CN213928948 U CN 213928948U CN 202022511914 U CN202022511914 U CN 202022511914U CN 213928948 U CN213928948 U CN 213928948U
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Abstract
The utility model belongs to the technical field of the metallurgical equipment, concretely relates to quick topping-up system of many owner's work plunger cylinders of large-scale die forging press of water-to-oil conversion. The utility model discloses on the basis of two filling tank and eight main work plunger cylinder on original die forging press, through increasing two oil tanks, eight filling valves, four low pressure compensators, filling tank oil supplementing device and filling tank oil extraction device have the quick filling system of the big-scale die forging press many main work plunger cylinder of water-to-oil change for eight main work plunger cylinders of the 300MN die forging press that the upgrading was reformed transform can fill the flowing back fast when with the shifting beam quick travel, and effectively improved the speed and the stability of die forging press operation.
Description
Technical Field
The utility model belongs to the technical field of the metallurgical equipment, concretely relates to quick topping-up system of many owner's work plunger cylinders of large-scale die forging press of water-to-oil conversion.
Background
A300 MN die forging hydraulic press for national treasure equipment built in the last 70 th century in China drives a movable cross beam by adopting a mode of driving 8 main working plunger cylinders. After the 300MN die forging hydraulic press is used for many years, particularly the rapid development of scientific technology in the years, the equipment is out of date, the defects of hydraulic drive are obvious, the energy consumption of the equipment is high, the operation precision is poor, and the working environment of the whole machine is poor, so that the upgrading and the reconstruction of the equipment are urgent. After the movable cross beam is upgraded and modified into an oil press, a large amount of liquid instantly rushes in when the movable cross beam rapidly descends and a large amount of liquid instantly discharges when the movable cross beam rapidly ascends to form a control problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a quick liquid filling system of many main work plunger cylinders of water-to-oil large-scale die forging press, aim at can make the eight main work plunger cylinders of 300MN die forging press that the upgrading was reformed transform fill the flowing back fast when the walking beam quick travel, improve press functioning speed and stability.
In order to realize the purpose, the utility model discloses a technical scheme is:
the quick liquid filling system for the multiple main working plunger cylinders of the large die forging press for changing water into oil at least comprises two liquid filling tanks and eight main working plunger cylinders; the oil-filling system also comprises two oil tanks, eight liquid-filling valves, four low-pressure compensators, a liquid-filling tank oil-supplementing device and a liquid-filling tank oil-discharging device; the upper ports of the eight main working plunger cylinders are respectively provided with a liquid charging valve; the four low-pressure compensators are fixed on an upper platform of the die forging press and are communicated through hydraulic pipelines; each two of the eight liquid charging valves are fixedly connected with a low-pressure compensator through a hydraulic pipeline; the two liquid filling tanks are placed in pits on the edge of the die forging press and are respectively connected with four low-pressure compensators positioned on the upper part of the die forging press through hydraulic pipelines; the oil-filling device comprises two oil tanks, a liquid-filling tank oil supplementing device and a liquid-filling tank oil discharging device, wherein the two oil tanks are respectively arranged in parallel, the liquid-filling tank oil supplementing device and the two oil tanks are arranged between the two oil tanks, the input end of the liquid-filling tank oil supplementing device is communicated with the two oil tanks in parallel, the output end of the liquid-filling tank oil supplementing device is communicated with the two liquid-filling tanks in parallel, the input end of the liquid-filling tank oil discharging device is communicated with the two liquid-filling tanks in parallel, and the output end of the liquid-filling tank oil supplementing device is communicated with the two oil tanks in parallel.
The volumes of the two liquid filling tanks are both 35m3～40m3。
The hydraulic pipeline is a telescopic pipeline.
The four low-pressure compensators are higher than the eight liquid filling valves.
The device also comprises a PLC controller; and the PLC is respectively in electric signal connection with the eight main working plunger cylinders.
The oil supplementing device of the liquid filling tank comprises a screw pump, a filter and a one-way valve; the screw pump is characterized in that an oil suction port of the screw pump is connected with the oil tank, an outlet of the screw pump is connected with an inlet of the filter, an outlet of the filter is connected with an inlet of the one-way valve, and an outlet of the one-way valve is connected with the liquid charging tank.
The oil discharge device of the liquid filling tank comprises an electromagnetic oil drain valve and an overflow valve; the electromagnetic oil drain valve is connected with the overflow valve in parallel, the inlets of the electromagnetic oil drain valve and the overflow valve are both connected with the liquid filling tank, and the outlets of the electromagnetic oil drain valve and the overflow valve are both connected with the oil tank.
Has the advantages that:
the utility model discloses on the basis of two filling tank and eight main work plunger cylinder on original die forging press, through increasing two oil tanks, eight filling valves, four low pressure compensators, filling tank oil supplementing device and filling tank oil extraction device and constitute the quick filling system of the many main work plunger cylinders of the large-scale die forging press that water changes oil for eight main work plunger cylinders of the 300MN die forging press that the upgrading was reformed transform can fill the flowing back fast when with the shifting beam quick travel, have effectively improved the speed and the stability of die forging press operation.
The above description is only an overview of the technical solution of the present invention, and in order to clearly understand the technical means of the present invention and to implement the technical solution according to the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-an oil tank; 2-liquid filling tank; 3-a liquid filling valve; 4-a low pressure compensator; 5-filling the fluid reservoir to mend the oil device; 6-oil discharge device of liquid filling tank; 7-moving the beam; 8-main working plunger cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the rapid liquid filling system for multiple main working plunger cylinders of a large die forging press for changing water into oil at least comprises two liquid filling tanks 2 and eight main working plunger cylinders 8; the device also comprises two oil tanks 1, eight liquid filling valves 3, four low-pressure compensators 4, a liquid filling tank oil supplementing device 5 and a liquid filling tank oil discharging device 6; the upper ports of the eight main working plunger cylinders 8 are respectively provided with a liquid charging valve 3; the four low-pressure compensators 4 are fixed on an upper platform of the die forging press, and the four low-pressure compensators 4 are communicated through hydraulic pipelines; each two charging valves 3 of the eight charging valves 3 are respectively and fixedly connected with a low-pressure compensator 4 through hydraulic pipelines; the two liquid filling tanks 2 are placed in pits on the edge of the die forging press and are respectively connected with four low-pressure compensators 4 positioned on the upper part of the die forging press through hydraulic pipelines; the two liquid filling tanks 2 and the two oil tanks 1 are respectively arranged in parallel, a liquid filling tank oil supplementing device 5 and a liquid filling tank oil discharging device 6 are arranged between the two liquid filling tanks 2 and the two oil tanks 1, the input end of the liquid filling tank oil supplementing device 5 is communicated with the two parallel oil tanks 1, the output end of the liquid filling tank oil supplementing device 5 is communicated with the two parallel liquid filling tanks 2, the input end of the liquid filling tank oil discharging device 6 is communicated with the two parallel liquid filling tanks 2, and the output end of the liquid filling tank oil supplementing device 5 is communicated with the two parallel oil tanks 1.
During actual use, when the movable beam 7 of the die forging press descends rapidly, the eight liquid filling valves 3 are all opened, the four low-pressure compensators 4 are directly communicated with the eight main working plunger cylinders 8 of the die forging press, and oil liquid of the four low-pressure compensators 4 directly and rapidly enters the eight main working plunger cylinders 8. The four low-pressure compensators 4 are communicated with the two large liquid filling tanks 2, and the liquid filling tanks 2 can supplement the shortage of the oil quantity of the compensators 4, thereby meeting the requirement of filling the eight main working plunger cylinders 8 when the movable beam 7 descends rapidly. The four low-pressure compensators 4 are connected by hydraulic pipelines, so that the liquid level balance is ensured, and the liquid filling speeds of the eight main working plunger cylinders 8 are ensured to be consistent.
When the die forging press performs pressurization work, the eight liquid filling valves 3 are closed, and high-pressure oil enters the main working plunger cylinder 8 through a high-pressure pipeline to complete die forging of the forge piece.
When the movable beam 7 rapidly ascends, the eight liquid filling valves 3 are all opened, the four low-pressure compensators 4 are directly communicated with the eight main working plunger cylinders 8 of the die forging press again, and oil in the eight main working plunger cylinders 8 is rapidly pressed back into the low-pressure compensators 4 due to the ascending of the movable beam. Because the low-pressure compensator 4 is communicated with the two large-scale liquid filling tanks 2, redundant oil in the low-pressure compensator 4 can return to the liquid filling tanks 2, and therefore the moving beam 7 can rise quickly. And the four low-pressure compensators 4 are also connected by hydraulic pipelines, so that the liquid level balance is ensured, and the liquid discharge speed of the eight main working plunger cylinders is ensured to be consistent.
In the process of rapid descending and rapid ascending of the moving beam 7 of the die forging press, a liquid filling tank oil supplementing device 5 and a liquid filling tank oil discharging device 6 are arranged between the two liquid filling tanks 2 and the two oil tanks 1, so that the two liquid filling tanks 2 can be always in normal liquid level.
The utility model discloses can make eight main working plunger cylinder 8 of 300MN die forging press that the upgrading was reformed transform fill, flowing back fast when moving beam 7 quick travel, effectively improve 300MN die forging press functioning speed and stability.
Example two:
referring to the fast liquid filling system of the multiple main working plunger cylinders of the large die forging press for changing water into oil shown in fig. 1, on the basis of the first embodiment, the volumes of the two liquid filling tanks 2 are both 35m3～40m3。
During actual use, when the press unloads, returns and loads, the liquid level of the liquid filling tank 2 is always in a high-level state under the combined action of the liquid filling tank oil supplementing device 5 and the liquid filling tank oil discharging device 6, and when the idle stroke of the press descends, the liquid filling tank 2 supplements oil for the low-pressure compensator 4 in time to prevent air suction. The volumes of the two liquid charging tanks 2 can be 37m3To meet the oil replenishment requirement of the low pressure compensator 4.
Example three:
referring to a water-to-oil large die forging press multi-main working plunger cylinder quick liquid filling system shown in fig. 1, on the basis of the first embodiment: the hydraulic pipeline is a telescopic pipeline.
In actual use, the hydraulic pipeline adopts a telescopic pipeline, so that the hydraulic pipeline can better adapt to elastic deformation of the die forging press during working.
Example four:
referring to a water-to-oil large die forging press multi-main working plunger cylinder quick liquid filling system shown in fig. 1, on the basis of the first embodiment: the four low-pressure compensators 4 are arranged at a height higher than the height of the eight charging valves 3.
When in actual use, the four low-pressure compensators 4 adopt the technical scheme that the positions of the low-pressure compensators 4 are higher than the liquid filling valve 3, and when the idle stroke of the press descends, liquid can be quickly and stably supplemented to the main working plunger cylinder 8.
Example five:
referring to a quick liquid charging system of a multi-main working plunger cylinder of a water-to-oil large die forging press shown in fig. 1, on the basis of the first embodiment: the device also comprises a PLC controller; and the PLC is respectively connected with eight main working plunger cylinders 8 through electric signals.
When the in-service use, the setting of PLC controller makes the utility model provides an eight main work plunger cylinders 8 can be automatic switching under the control of PLC controller, and degree of automation has obtained the improvement.
Example six:
referring to a water-to-oil large die forging press multi-main working plunger cylinder quick liquid filling system shown in fig. 1, on the basis of the first embodiment: the oil supplementing device 5 of the liquid filling tank comprises a screw pump, a filter and a one-way valve; the oil suction port of the screw pump is connected with the oil tank 1, the outlet of the screw pump is connected with the inlet of the filter, the outlet of the filter is connected with the inlet of the one-way valve, and the outlet of the one-way valve is connected with the liquid charging tank 2.
In actual use, if the liquid level of the liquid filling tank 2 is lower than a set liquid level, the screw pump is started, oil is absorbed from the oil tank 1 and is supplemented to the liquid filling tank 2 through the filter and the one-way valve, and the screw pump stops after the liquid level of the liquid filling tank 2 reaches the set value.
Example seven:
referring to a quick liquid charging system of a multi-main working plunger cylinder of a water-to-oil large die forging press shown in fig. 1, on the basis of the first embodiment: the oil filling tank oil discharging device 6 comprises an electromagnetic oil discharging valve and an overflow valve; the electromagnetic oil drain valve and the overflow valve are connected in parallel, the inlets of the electromagnetic oil drain valve and the overflow valve are both connected with the liquid filling tank 2, and the outlets of the electromagnetic oil drain valve and the overflow valve are both connected with the oil tank 1.
In actual use, if the liquid level of the liquid filling tank 2 is higher than the set liquid level, the electromagnetic oil drain valve is electrified and opened, and the liquid filling tank 2 drains oil to the oil tank 1 through the electromagnetic oil drain valve. And after the liquid level of the liquid filling tank 2 rises to cause the pressure to rise and exceed the set pressure of the overflow valve under the unexpected condition, the overflow valve is opened, and the liquid filling tank 2 discharges oil to the oil tank 1 through the overflow valve, so that the safe operation of the liquid filling tank 2 is ensured.
Example eight:
the fast liquid flushing method for the fast liquid filling system of the multi-main working plunger cylinder of the large die forging press for changing water into oil comprises the following steps,
the method comprises the following steps: when the moving beam 7 of the die forging press descends rapidly, the second step is carried out; when the die forging press performs pressurization work, entering the step three; when the movable beam 7 rapidly ascends, the fourth step is carried out:
step two: the PLC controller controls the eight liquid filling valves 3 to be opened completely, the four low-pressure compensators 4 are directly communicated with the eight main working plunger cylinders 8, and oil liquid of the four low-pressure compensators 4 directly and quickly enters the eight main working plunger cylinders 8; completing the rapid descent of the mobile beam 7;
step three: the PLC controller controls the eight liquid filling valves 3 to be closed, and high-pressure oil enters the eight main working plunger cylinders 8 through pipelines to complete die forging of the forge piece;
step four: the PLC controller controls the eight liquid filling valves 3 to be opened completely, the four low-pressure compensators 4 are directly communicated with the eight main working plunger cylinders 8 again, and oil in the eight main working plunger cylinders 8 is quickly pressed back into the low-pressure compensators 4 due to the movable cross beam 7, so that the quick rising of the movable cross beam 7 is completed.
The utility model discloses when in actual use, when the quick decline of die forging press travelling beam 7, eight prefill valves 3 are all opened under the control of PLC controller, and four low pressure compensators 4 and the eight main work plunger cylinders 8 of die forging press are direct to be communicate, and the direct quick eight main work plunger cylinders 8 that get into of fluid of four low pressure compensators 4. The four low-pressure compensators 4 are communicated with the two liquid filling tanks 2, and the liquid filling tanks 2 can supplement the shortage of the oil quantity of the low-pressure compensators 4, thereby meeting the requirement of filling the eight main working plunger cylinders 8 when the movable beam 7 descends rapidly. The four low-pressure compensators 4 are connected by hydraulic pipelines, so that the liquid level balance is ensured, and the liquid filling speeds of the eight main working plunger cylinders 8 are ensured to be consistent.
When the die forging press performs pressurization work, the eight liquid filling valves 3 are closed, and high-pressure oil enters the main working plunger cylinder 8 through a high-pressure pipeline to complete die forging of the forge piece.
When the movable beam 7 rises quickly, the eight liquid filling valves 3 are all opened, the four low-pressure compensators 4 are directly communicated with the eight main working plunger cylinders 8 of the die forging press again, and oil in the eight main working plunger cylinders 8 is quickly pressed back into the low-pressure compensators 4 due to the rising of the movable beam 7. Because the low pressure compensator 4 is communicated with the two liquid filling tanks 2, redundant oil in the low pressure compensator 4 can return to the liquid filling tanks 2, and therefore the moving beam 7 can rise quickly. And the four low-pressure compensators 4 are also connected by hydraulic pipelines, so that the liquid level balance is ensured, and the liquid discharge speed of the eight main working plunger cylinders 8 is ensured to be consistent.
In the process of rapid descending and rapid ascending of the movable beam 7 of the die forging press, a liquid filling tank oil supplementing device 5 and a liquid filling tank oil discharging device 6 are arranged between the two large liquid filling tanks 2 and the two oil tanks 1, so that the two liquid filling tanks 2 can be always in normal liquid level.
Use the utility model discloses, fill the flowing back fast when the walking beam quick travel to the eight main work hydro-cylinders of 300MN die forging press that the upgrading was reformed transform, improve press functioning speed and stability.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.
Claims (7)
1. The quick liquid filling system for the multiple main working plunger cylinders of the large die forging press for changing water into oil at least comprises two liquid filling tanks (2) and eight main working plunger cylinders (8); the method is characterized in that: the oil-filling system also comprises two oil tanks (1), eight liquid-filling valves (3), four low-pressure compensators (4), a liquid-filling tank oil-supplementing device (5) and a liquid-filling tank oil-discharging device (6); the upper ports of the eight main working plunger cylinders (8) are respectively provided with a liquid charging valve (3); the four low-pressure compensators (4) are fixed on an upper platform of the die forging press, and the four low-pressure compensators (4) are communicated through hydraulic pipelines; every two liquid charging valves (3) in the eight liquid charging valves (3) are respectively and fixedly connected with a low-pressure compensator (4) through hydraulic pipelines; the two liquid filling tanks (2) are placed in pits on the edge of the die forging press and are respectively connected with four low-pressure compensators (4) positioned on the upper part of the die forging press through hydraulic pipelines; the oil-filling device is characterized in that the two oil filling tanks (2) and the two oil tanks (1) are respectively arranged in parallel, an oil filling tank oil supplementing device (5) and an oil filling tank oil discharging device (6) are arranged between the two oil filling tanks (2) and the two oil tanks (1), the input end of the oil filling tank oil supplementing device (5) is communicated with the two oil tanks (1) which are connected in parallel, the output end of the oil filling tank oil supplementing device (5) is communicated with the two liquid filling tanks (2) which are connected in parallel, the input end of the oil filling tank oil discharging device (6) is communicated with the two liquid filling tanks (2) which are connected in parallel, and the output end of the oil filling tank oil supplementing device (5) is communicated with the two oil tanks (1) which are connected in parallel.
2. The system of claim 1, wherein the system comprises: the volumes of the two liquid filling tanks (2) are both 35m3～40m3。
3. The system of claim 1, wherein the system comprises: the hydraulic pipeline is a telescopic pipeline.
4. The system of claim 1, wherein the system comprises: the four low-pressure compensators (4) are arranged at a height higher than the height of the eight liquid filling valves (3).
5. The system of claim 1, wherein the system comprises: the device also comprises a PLC controller; the PLC is respectively connected with the eight main working plunger cylinders (8) through electric signals.
6. The system of claim 1, wherein the system comprises: the oil supplementing device (5) of the liquid filling tank comprises a screw pump, a filter and a one-way valve; the oil suction port of the screw pump is connected with the oil tank (1), the outlet of the screw pump is connected with the inlet of the filter, the outlet of the filter is connected with the inlet of the one-way valve, and the outlet of the one-way valve is connected with the liquid filling tank (2).
7. The system of claim 1, wherein the system comprises: the oil discharge device (6) of the liquid filling tank comprises an electromagnetic oil drain valve and an overflow valve; the electromagnetic oil drain valve is connected with the overflow valve in parallel, the inlets of the electromagnetic oil drain valve and the overflow valve are both connected with the liquid filling tank (2), and the outlets of the electromagnetic oil drain valve and the overflow valve are both connected with the oil tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022511914.8U CN213928948U (en) | 2020-11-03 | 2020-11-03 | Quick liquid filling system for multi-main working plunger cylinder of large die forging press for changing water into oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022511914.8U CN213928948U (en) | 2020-11-03 | 2020-11-03 | Quick liquid filling system for multi-main working plunger cylinder of large die forging press for changing water into oil |
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| Publication Number | Publication Date |
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| CN213928948U true CN213928948U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022511914.8U Active CN213928948U (en) | 2020-11-03 | 2020-11-03 | Quick liquid filling system for multi-main working plunger cylinder of large die forging press for changing water into oil |
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| CN (1) | CN213928948U (en) |
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