CN115059647A - Die forging press liquid filling tank and oil tank liquid level control device and method - Google Patents
Die forging press liquid filling tank and oil tank liquid level control device and method Download PDFInfo
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- CN115059647A CN115059647A CN202210469594.5A CN202210469594A CN115059647A CN 115059647 A CN115059647 A CN 115059647A CN 202210469594 A CN202210469594 A CN 202210469594A CN 115059647 A CN115059647 A CN 115059647A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/005—Filling or draining of fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Forging (AREA)
Abstract
The invention belongs to the technical field of metallurgical equipment, and particularly provides a liquid filling tank and oil tank liquid level control device and method for a die forging press.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a liquid level control device and method for a liquid charging tank and an oil tank of a die forging press.
Background
Along with the rapid development of the aerospace industry in recent years, the demand of large integral die forging integrated molding is increasing, and the construction of large die forging presses (more than or equal to 300MN) in China is rapidly increased. When the large die forging press is used for die forging forming, the moving beam of the moving part is required to stably run at a slow speed, and the large die forging press is required to have high running efficiency, namely the idle running speed of the moving beam is required to be fast. The moving beam of the main moving part of the large die forging press is not only bulky, but also heavy, more than 2000 tons, and is driven by a plurality of (8) main working cylinders; the large die forging press is large in size, and the hydraulic pipeline is long, so that the size of a liquid medium in a hydraulic system of the large die forging press is large; the prior art can not well control the flow of the liquid medium in the hydraulic system of the large die forging press.
Chinese patent publication No. CN202327597U, published as 7/11/2012, discloses an automatic control device for an oil system, which comprises a main oil tank, a high-level oil tank, a first main oil tank liquid level controller, a second main oil tank liquid level controller, a first high-level oil tank liquid level controller, a first oil pump, a second oil pump, a third oil pump, a control cabinet, a main oil tank alarm and a high-level oil tank alarm, wherein the main oil tank is connected with the high-level oil tank through a first oil pump pipeline, a second oil pump pipeline and a third oil pump pipeline, the main oil tank is provided with the first main oil tank liquid level controller and the second main oil tank liquid level controller, the high-level oil tank is provided with the first high-level oil tank liquid level controller and the second high-level oil tank liquid level controller, the first main oil tank liquid level controller, the second main oil tank liquid level controller, the first high-level oil tank liquid level controller and the second high-level oil tank liquid level controller are connected with the control cabinet, the PLC controller is adopted as the control cabinet to control the automatic oil supply of a plurality of oil pumps, thereby realizing the automatic control of the lubricating oil system, Unattended function; automatic control of the lubricating oil system is reliably achieved. But does not solve the problem of how to well control the flow of the liquid medium in the hydraulic system of the large die forging press.
Disclosure of Invention
The invention provides a liquid level control device and a liquid level control method for a liquid charging tank and an oil tank of a die forging press, and aims to solve the problem that the flow of a liquid medium in a hydraulic system of a large die forging press cannot be well controlled in the prior art.
The liquid filling port of the liquid filling tank group is sequentially connected with the liquid filling valve group, the main cylinder group, the movable cross beam and the return cylinder group, the control group is respectively connected with the main cylinder group, the return cylinder group and the oil tank group, and the liquid discharging port of the liquid filling tank group is connected with the oil tank group.
Preferably, the liquid filling tank group comprises a plurality of liquid filling tanks, the liquid filling tanks are connected through pipelines, liquid filling ports of the liquid filling tanks are all connected with the liquid filling valve group, and the liquid filling tanks are all provided with and connected with a first liquid level meter.
Preferably, the oil tank group includes a plurality of oil tanks, and through the pipe connection between a plurality of oil tanks, a plurality of oil tanks all set up and are connected with the second level gauge.
Preferably, the device also comprises a liquid charging tank drainage group, and a drainage port of the liquid charging tank group is connected with the oil tank group through the liquid charging tank drainage group.
Preferably, the device also comprises a liquid supply oil pump, and a liquid supply port of the liquid filling tank group is connected with the oil tank group through the liquid supply oil pump.
Preferably, a flexible pipe joint is arranged and connected on a connecting line between the plurality of oil tanks.
Preferably, a ball valve is arranged and connected on a connecting line between the plurality of oil tanks.
Preferably, the liquid discharge group of the liquid filling tank comprises a liquid discharge valve, and a liquid discharge port of the liquid filling tank group is connected with the oil tank group through the liquid discharge valve.
Preferably, the liquid discharge group of the liquid filling tank further comprises an overflow valve, and a liquid discharge port of the liquid filling tank group is connected with the oil tank group through the overflow valve.
A die forging press liquid filling tank and oil tank liquid level control method comprises the following steps: the control group controls the movable cross beam through the main cylinder group and the return cylinder group, and when the movable cross beam descends, the liquid filling tank group provides oil for the main cylinder group through the liquid filling valve group; when the movable cross beam is driven by the return cylinder group to ascend, the main cylinder group discharges liquid to the liquid charging tank group through the liquid charging valve group; when the liquid level of the liquid charging tank group exceeds the set high level value, the oil in the liquid charging tank group is discharged to the oil tank group through the liquid charging tank liquid discharging group; and when the liquid level of the liquid filling tank group is lower than the set low level value, the oil tank group supplies liquid to the liquid filling tank group through the liquid supply oil pump.
The invention has the beneficial effects that:
1. according to the liquid level control device for the liquid charging tank and the oil tank of the die forging press, provided by the invention, through controlling the liquid levels of the liquid charging tank group and the oil tank group, oil can smoothly flow between the main cylinder group and the return cylinder group, so that the movement of the movable beam is controlled, and the action requirements of a large die forging press are met.
2. According to the liquid filling tank and the oil tank liquid level control device of the die forging press, provided by the invention, the liquid filling tank group comprises a plurality of liquid filling tanks which are connected through pipelines, the plurality of liquid filling tanks are all connected with a first liquid level meter, the oil tank group comprises a plurality of oil tanks which are connected through pipelines, and the plurality of oil tanks are all connected with a second liquid level meter; a liquid filling valve group and a liquid filling tank drainage group are arranged between the plurality of liquid filling tanks and the plurality of oil tanks; a liquid supply oil pump is arranged between the plurality of oil tanks and the plurality of liquid filling tanks to jointly form the liquid filling tanks of the die forging press and the oil tank liquid level control device; the automatic control of the liquid levels of the liquid filling tank and the oil tank can be realized through the liquid filling valve group, the liquid filling tank drainage group, the liquid supply oil pump, the first liquid level meter and the second liquid level meter.
3. According to the die forging press liquid filling tank and the oil tank liquid level control device, the liquid supply oil pump is arranged between the oil tank group and the liquid filling tank group, so that liquid in the oil tank can be supplied to the liquid filling tank when the liquid level of the liquid filling tank is lower than a set value, and the stability of the liquid level of the liquid filling tank is ensured.
Drawings
The present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a structural schematic diagram of a liquid level control device of a liquid filling tank and an oil tank of a die forging press.
Description of reference numerals: 1. a liquid filling tank group; 2. a movable cross beam; 3. a liquid-filled valve bank; 4. a master cylinder group; 5. a return cylinder group; 6. a liquid charging tank drainage group; 7. a feed liquid oil pump; 8. an oil tank group; 9. a control group; 1.1, filling a liquid tank; 1.2, a first liquid level meter; 6.1, a drain valve; 6.2, an overflow valve; 8.1, an oil tank; 8.2, a second liquid level meter; 8.3, flexible pipe joint; 8.4, a ball valve; 9.1, a return cylinder control valve group; 9.2, a master cylinder control valve group; 9.3, leveling cylinder control valve group.
Detailed Description
Example 1:
as shown in fig. 1, a liquid filling tank and oil tank liquid level control device for a die forging press comprises a liquid filling tank group 1, a movable cross beam 2, a liquid filling valve group 3, a main cylinder group 4, a return cylinder group 5, a control group 9 and an oil tank group 8, wherein a liquid filling port of the liquid filling tank group is sequentially connected with the liquid filling valve group 3, the main cylinder group 4, the movable cross beam 2 and the return cylinder group 5, the control group 9 is respectively connected with the main cylinder group 4, the return cylinder group 5 and the oil tank group 8, and a liquid discharging port of the liquid filling tank group 1 is connected with the oil tank group 8.
According to the liquid level control device for the liquid charging tank and the oil tank of the die forging press, disclosed by the invention, through controlling the liquid levels of the liquid charging tank group 1 and the oil tank group 8, oil smoothly flows between the main cylinder group 4 and the return cylinder group 5, so that the movement of the movable beam 2 is controlled, and the action requirements of a large die forging press are met.
Example 2:
on the basis of the embodiment 1, the liquid filling tank group 1 includes a plurality of liquid filling tanks 1.1, the plurality of liquid filling tanks 1.1 are connected through pipelines, liquid filling ports of the plurality of liquid filling tanks 1.1 are all connected with a liquid filling valve group 3, and the plurality of liquid filling tanks 1.1 are all provided with and connected with a first liquid level meter 1.2.
The multiple liquid filling tanks 1.1 are connected through low-pressure pipelines, when the device is used, the specific number of liquid filling tanks 1.1 are selected according to needs, the adaptability and the practicability are strong, and when the movable cross beam 2 descends, the liquid filling tank group 1 provides oil for the main cylinder group 4 through the liquid filling valve group 3; when the movable cross beam 2 is driven by the return cylinder group 5 to ascend, the main cylinder group 4 discharges liquid to the liquid charging tank group 1 through the liquid charging valve group 3; the first level gauge 1.2 is used to monitor the liquid level in the charge liquid tank 1.1.
Preferably, the oil tank group 8 comprises a plurality of oil tanks 8.1, the oil tanks 8.1 are connected through pipelines, and the oil tanks 8.1 are all provided with and connected with a second liquid level meter 8.2. The second level gauge 8.2 facilitates real-time monitoring of the liquid level in the tank 8.1.
Preferably, the device also comprises a liquid filling tank drainage group 6, and a drainage port of the liquid filling tank group 1 is connected with the oil tank group 8 through the liquid filling tank drainage group 6.
When the liquid level of the liquid charging tank group 1 exceeds the set high level value, the oil liquid in the liquid charging tank group 1 is discharged to an oil tank group 8 through a liquid charging tank discharging group 6; the stability of the liquid level of the liquid filling tank 1.1 is ensured.
Preferably, the device also comprises a liquid supply oil pump 7, and a liquid supply port of the liquid supply tank group 1 is connected with an oil tank group 8 through the liquid supply oil pump 7.
When the liquid level of the liquid charging tank set 1 is lower than the set low level value, the oil tank set 8 supplies liquid to the liquid charging tank set 1 through the liquid supply oil pump 7, and the stability of the liquid level of the liquid charging tank 1.1 is guaranteed. The feed oil pump 7 is of prior art construction and will not be described in detail herein.
Preferably, a flexible pipe joint 8.3 is arranged and connected on a connecting pipeline between the plurality of oil tanks 8.1.
The flexible pipe joint 8.3 is in flexible connection, is convenient to install, and can eliminate machining and installation errors of 8.1.
Preferably, a ball valve 8.4 is arranged and connected on a connecting pipeline between the oil tanks 8.1.
The ball valve 8.4 can separate two adjacent oil tanks 8.1, and when one of the oil tanks 8.1 is overhauled, oil in the other oil tank 8.1 can be pumped into the oil tank which does not need to be maintained, so that the maintenance is convenient.
Preferably, the liquid charging tank drainage group 6 comprises a drainage valve 6.1, and a drainage port of the liquid charging tank group 1 is connected with the oil tank group 8 through the drainage valve 6.1.
When the drain valve 6.1 is opened, the liquid charging tank 1.1 is communicated with the oil tank 8.1, the liquid charging tank 1.1 discharges oil to the oil tank 8.1, and the drain valve 6.1 is closed, so that the structure and the operation are simple.
Preferably, the liquid discharge group 6 of the liquid filling tank further comprises an overflow valve 6.2, and a liquid discharge port of the liquid filling tank group 1 is connected with the oil tank group 8 through the overflow valve 6.2.
When the pressure of the liquid filling tank 1.1 is too high and exceeds the set pressure of the overflow valve 6.2, the oil in the liquid filling tank 1.1 can return to the oil tank 8.1 through the overflow valve 6.2, and the safety protection effect is achieved.
Preferably, the liquid filling valve group 3 comprises a plurality of liquid filling valves, the main cylinder group 4 comprises a plurality of main cylinders, and the return cylinder group 5 comprises a plurality of return cylinders; the number of the liquid charging valves, the number of the main cylinders and the number of the return cylinders are selected according to requirements.
Preferably, the number of the liquid filling tanks 1.1 and the number of the oil tanks 8.1 are both 2, the number of the liquid filling valves and the number of the main cylinders are both 8, and the number of the return cylinders is 4. Through the automatic control of the liquid levels of the liquid filling tank 1.1 and the liquid filling tank 1.1, the oil can smoothly flow between 8 main cylinders and 4 return cylinders, and the action requirements of a large die forging press are met.
Preferably, the first liquid level meter 1.2 and the second liquid level meter 8.2 are both alarm liquid level meters; the alarm liquid level meter has the functions of monitoring and alarming, when the liquid level of the liquid filling tank 1.1 exceeds or is lower than a set value, the first liquid level meter 1.2 gives an alarm and adjusts the liquid level of the liquid filling tank 1.1 through the cooperation of other parts, and when the liquid level of the oil tank 8.1 exceeds or is lower than the set value, the second liquid level meter 8.2 gives an alarm and adjusts the liquid level of the oil filling tank 8.1 through the cooperation of other parts, so that the automatic control of the liquid levels of the liquid filling tank 1.1 and the oil tank 8.1 is facilitated.
Preferably, the control group 9 comprises a return cylinder control valve group 9.1, a master cylinder control valve group 9.2 and a leveling cylinder control valve group 9.3, the return cylinder control valve group 9.1 and the leveling cylinder control valve group 9.3 are both connected with the return cylinder group 5, and the master cylinder control valve group 9.2 is connected with the master cylinder group 4; the return cylinder control valve group 9.1 and the leveling cylinder control valve group 9.3 are used for controlling the return cylinder group 5 and further controlling the action of the movable cross beam 2, and the main cylinder control valve group 9.2 is used for controlling the main cylinder group 4 and further automatically controlling the action of the movable cross beam 2. The structures of the return cylinder control valve group 9.1, the main cylinder control valve group 9.2 and the leveling cylinder control valve group 9.3 adopt the existing structures, and the specific structures are not described correspondingly.
Example 3:
a die forging press liquid filling tank and oil tank liquid level control method comprises the following steps: the control group 9 controls the movable beam 2 through the main cylinder group 4 and the return cylinder group 5, when the movable beam 2 descends in an idle stroke manner, the liquid filling valve group 3 is opened, and the liquid filling tank group 1 supplies oil to the main cylinder group 4 through the liquid filling valve group 3; when the movable cross beam 2 is pressurized and lowered, the liquid filling valve group 3 is closed, and the oil tank group 8 provides oil for the main cylinder group 4 through the control group 9; when the movable beam 2 is driven by the return cylinder group 5 to ascend, the liquid filling valve group 3 is opened, and the main cylinder group 4 drains liquid to the liquid filling tank group 1 through the liquid filling valve group 3; when the liquid level of the liquid charging tank group 1 exceeds the set high level value, the oil liquid in the liquid charging tank group 1 is discharged to an oil tank group 8 through a liquid charging tank discharging group 6; when the liquid level of the liquid charging tank group 1 is lower than the set low level value, the oil tank group 8 supplies liquid to the liquid charging tank group 1 through the liquid supply oil pump 7.
The liquid filling tank group 1 comprises a plurality of liquid filling tanks 1.1, the liquid filling tanks 1.1 are connected through pipelines, the liquid filling tanks 1.1 are all connected with a first liquid level meter 1.2, the oil tank group 8 comprises a plurality of oil tanks 8.1, the oil tanks 8.1 are connected through pipelines, and the oil tanks 8.1 are all connected with a second liquid level meter 8.2; a liquid filling valve group 3 and a liquid filling tank drainage group 6 are arranged between the plurality of liquid filling tanks 1.1 and the plurality of oil tanks 8.1; a liquid feed oil pump 7 is arranged between the plurality of oil tanks 8.1 and the plurality of liquid filling tanks 1.1 to jointly form the liquid filling tanks of the die forging press and the oil tank liquid level control device; the automatic control of the liquid levels of the liquid filling tank and the oil tank can be realized through the liquid filling valve group 3, the liquid filling tank and liquid discharging group 6, the liquid supply oil pump 7, the first liquid level meter 1.2 and the second liquid level meter 8.2.
In the description of the present invention, it is to be understood that the terms "front", "inside", "right", and the like, if any, are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used for illustrative purposes only and are not to be construed as limiting the present invention.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (10)
1. The utility model provides a die forging press filling jar and oil tank liquid level control device which characterized in that: the hydraulic cylinder group comprises a hydraulic cylinder group (1), a movable cross beam (2), a hydraulic valve group (3), a main cylinder group (4), a return cylinder group (5), a control group (9) and an oil tank group (8), wherein a hydraulic port of the hydraulic cylinder group is sequentially connected with the hydraulic valve group (3), the main cylinder group (4), the movable cross beam (2) and the return cylinder group (5), the control group (9) is respectively connected with the main cylinder group (4), the return cylinder group (5) and the oil tank group (8), and a liquid discharge port of the hydraulic cylinder group (1) is connected with the oil tank group (8).
2. The swage press fill tank and reservoir level control device of claim 1, wherein: the liquid filling tank set (1) comprises a plurality of liquid filling tanks (1.1), the liquid filling tanks (1.1) are connected through pipelines, liquid filling valve sets (3) are connected to liquid filling ports of the liquid filling tanks (1.1), and first liquid level meters (1.2) are arranged and connected to the liquid filling tanks (1.1).
3. The swage press fill tank and reservoir level control device of claim 1, wherein: the oil tank group (8) comprises a plurality of oil tanks (8.1), the oil tanks (8.1) are connected through pipelines, and the oil tanks (8.1) are all provided with and connected with a second liquid level meter (8.2).
4. The swage press fill tank and reservoir level control device of claim 1, wherein: the liquid filling device also comprises a liquid filling tank drainage group (6), and a drainage port of the liquid filling tank group (1) is connected with the oil tank group (8) through the liquid filling tank drainage group (6).
5. The swage press fill tank and reservoir level control device of claim 1, wherein: the liquid supply port of the liquid filling tank group (1) is connected with the oil tank group (8) through the liquid supply oil pump (7).
6. The swage press fill tank and reservoir level control device of claim 3, wherein: and flexible pipe joints (8.3) are arranged and connected on connecting pipelines among the oil tanks (8.1).
7. The swage press fill tank and reservoir level control device of claim 3, wherein: and ball valves (8.4) are arranged and connected on connecting pipelines among the oil tanks (8.1).
8. The swage press fill tank and reservoir level control device of claim 4, wherein: the liquid charging tank liquid discharging group (6) comprises a liquid discharging valve (6.1), and a liquid discharging port of the liquid charging tank group (1) is connected with the oil tank group (8) through the liquid discharging valve (6.1).
9. The swage press fill tank and reservoir level control device of claim 4, wherein: the liquid charging tank drainage group (6) further comprises an overflow valve (6.2), and a drainage port of the liquid charging tank group (1) is connected with the oil tank group (8) through the overflow valve (6.2).
10. A die forging press liquid filling tank and oil tank liquid level control method is characterized in that: the method comprises the following steps: the control group (9) controls the movable beam (2) through the main cylinder group (4) and the return cylinder group (5), when the movable beam (2) descends in an idle stroke manner, the liquid filling valve group (3) is opened, and the liquid filling tank group (1) provides oil for the main cylinder group (4) through the liquid filling valve group (3); when the movable cross beam (2) is pressurized and lowered, the liquid filling valve group (3) is closed, and the oil tank group (8) provides oil for the main cylinder group (4) through the control group (9); when the movable beam (2) is driven by the return cylinder group (5) to ascend, the liquid filling valve group (3) is opened, and the main cylinder group (4) drains liquid to the liquid filling tank group (1) through the liquid filling valve group (3); when the liquid level of the liquid charging tank group (1) exceeds the set high level value, the oil liquid in the liquid charging tank group (1) is discharged to the oil tank group (8) through the liquid charging tank liquid discharging group (6); when the liquid level of the liquid filling tank group (1) is lower than the set low level value, the oil tank group (8) supplies liquid to the liquid filling tank group (1) through the liquid supply oil pump (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210469594.5A CN115059647A (en) | 2022-04-28 | 2022-04-28 | Die forging press liquid filling tank and oil tank liquid level control device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210469594.5A CN115059647A (en) | 2022-04-28 | 2022-04-28 | Die forging press liquid filling tank and oil tank liquid level control device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115059647A true CN115059647A (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210469594.5A Pending CN115059647A (en) | 2022-04-28 | 2022-04-28 | Die forging press liquid filling tank and oil tank liquid level control device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115059647A (en) |
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- 2022-04-28 CN CN202210469594.5A patent/CN115059647A/en active Pending
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