CN217761540U - Efficiency increasing device of hydraulic press - Google Patents
Efficiency increasing device of hydraulic press Download PDFInfo
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- CN217761540U CN217761540U CN202221613470.1U CN202221613470U CN217761540U CN 217761540 U CN217761540 U CN 217761540U CN 202221613470 U CN202221613470 U CN 202221613470U CN 217761540 U CN217761540 U CN 217761540U
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Abstract
The utility model discloses a hydraulic press increases efficiency device, concretely relates to hydraulic press technical field, including hydraulic system, hydraulic system's working cylinder epicoele has cartridge valves through hydro-cylinder epicoele tube coupling, hydraulic system's working cylinder's pneumatic cylinder return hydraulic fluid port passes through hydro-cylinder cavity of resorption pipeline and is connected with cartridge valves, and load P in the cartridge valves has oil pump one through the tube coupling, hydraulic system connects in parallel has the increase-effect structure, and the increase-effect structure includes the motor, the oil pump two of being connected with the motor, the output of oil pump two is connected to load P through low pressure acceleration rate pipeline and high-pressure pipeline, oil pump two is connected with the off-load valve through the pipeline, and the off-load valve is connected to load P through control circuit. The utility model discloses a parallelly connected an independent increase structure in former hydraulic system reduces driving motor's power consumption, improves production efficiency, and the structure of increasing simultaneously is the independent device, guarantees all not have any interference with all configurations and the function and the operating method of former equipment.
Description
Technical Field
The utility model relates to a hydraulic press field, concretely relates to hydraulic press increases efficiency device.
Background
The hydraulic press is used for processing products such as metal, plastic, rubber, wood, powder and the like by utilizing hydrostatic pressure. Hydraulic presses are commonly used in pressing and press forming processes, such as: forging, stamping, cold extruding, straightening, bending, flanging, sheet drawing, powder metallurgy, press fitting and the like.
The hydraulic machine is composed of three parts of a main machine (main machine), a power system and a hydraulic control system, and the basic principle is that an oil pump conveys hydraulic oil to an integrated cartridge valve block, the hydraulic oil is distributed to an upper cavity or a lower cavity of an oil cylinder through various one-way valves and overflow valves, and the oil cylinder moves under the action of high-pressure oil. The hydraulic machine comprises a hydraulic press and an oil press, wherein the hydraulic press is called by taking water-based liquid as a working medium, and the oil press is called by taking oil as a working medium.
Shell workpieces, in particular drawn parts with high elongation, in a stamping process are generally produced by hydraulic equipment. The hydraulic equipment manufactured in the nineties of China is limited by the manufacturing standard of the equipment in China and the mechanical performance of metal materials in China at that time, the designed process action and single frequency are single and slow, and the high-speed and high-efficiency production rhythm implemented by the existing factory is difficult to meet, so that the device for increasing the efficiency of the hydraulic machine is provided.
Disclosure of Invention
The utility model aims at providing a hydraulic press increases efficiency device, through parallelly connected an independent increase structure in former hydraulic system, reduces driving motor's power consumption, improves production efficiency, and the structure of increasing efficiency simultaneously is the independent device, guarantees all configurations and the function and the operating method of former equipment all not have any interference.
In order to achieve the above object, the present invention provides the following technical solutions: efficiency increasing device of hydraulic press, including hydraulic system, hydraulic system's working cylinder epicoele has the cartridge valves through hydro-cylinder epicoele tube coupling, and installs the second check valve on the hydro-cylinder epicoele pipeline, hydraulic system's working cylinder's pneumatic cylinder return stroke hydraulic fluid port passes through hydro-cylinder cavity of resorption pipeline and is connected with the cartridge valves, and installs the liquid accuse check valve on the hydro-cylinder cavity of resorption pipeline, and load P in the cartridge valves has oil pump one through the tube coupling.
Hydraulic system connects in parallel has synergistic structure, and synergistic structure includes the motor, the oil pump two of being connected with the motor, the output of oil pump two is connected to load P through low pressure acceleration rate pipeline and high-pressure line, and is connected with first check valve between low pressure acceleration rate pipeline and the high-pressure line, oil pump two pass through the pipeline and be connected with the off-load valve, and the off-load valve is connected to load P through control circuit.
Preferably, the low-pressure speed increasing pipeline is provided with a pressure gauge for measuring pressure.
Preferably, the unloading valve is connected to a first oil return port of the hydraulic oil tank through a pipeline, and the unloading pressure of the unloading valve is 8MPA.
The unloading valve is a valve which can unload the hydraulic pump under certain conditions. The unloading valve is usually an overflow valve with a two-position two-way valve (usually an electromagnetic valve), and has the functions of setting the main pressure of a system (an oil pump) when the unloading valve is not unloaded, directly returning pressure oil to an oil tank when the unloading valve is in an unloading state (converted by the action of the two-position two-way valve), and reducing the pressure of the oil pump to be approximately zero so as to realize loop control, prolong the service life of the oil pump and reduce power consumption.
Preferably, the oil pump two-way pipeline is connected to a second oil return port of the hydraulic oil tank, an overflow valve is mounted on the pipeline, and the pressure of the overflow valve is 10MPA.
The overflow valve is a hydraulic pressure control valve, when the system pressure exceeds the specified value, the overflow valve is pushed open, and a part of gas in the system is discharged into the atmosphere, so that the system pressure does not exceed the allowable value, and the overflow valve mainly plays the roles of constant pressure overflow, pressure stabilization, system unloading and safety protection in hydraulic equipment.
Preferably, the input end of the second oil pump is connected to an oil suction port of the hydraulic oil tank through an oil suction pipeline, and a stop valve is installed on the oil suction pipeline.
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. Can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. Therefore, this type of shut-off valve is very suitable for shut-off or regulation and throttling. The valve rod of the valve has relatively short opening or closing stroke and reliable cut-off function, and the change of the valve seat port is in direct proportion to the stroke of the valve clack, so that the valve is suitable for regulating flow.
Preferably, the motor and the second oil pump are both fixed on a motor bottom plate, and the motor bottom plate is fixed on the ground.
In the technical scheme, the utility model provides a technological effect and advantage:
1. the utility model discloses parallelly connected increase structure in former hydraulic system, increase structure are the independent device, guarantee all configurations and function and the operating method of with former equipment all do not have any interference.
2. The utility model discloses simple structure, the spare part that adopts is less, and the cost is lower.
3. The utility model discloses the during operation launches the automatic control function of self flow for each technological action is accurate reliable.
4. The utility model discloses the during operation, flow output is servo curve form according to the pressure size and changes, reducible driving motor's power consumption.
5. The utility model discloses can make production efficiency improve thirty-five above percent on original basis.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed 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 described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a system diagram of the present invention;
fig. 2 is a schematic diagram of the speed increasing of the hydraulic press of the present invention.
Description of reference numerals:
the hydraulic control system comprises a motor 1, an oil pump 2, an overflow valve 3, a pressure gauge 4, a low-pressure speed-increasing pipeline 5, a high-pressure pipeline 6, a first check valve 7, an unloading valve 8, a control loop 9, a first oil return port 10, a second oil return port 11, an oil suction pipeline 12, a first oil pump stop valve 13, a first oil pump stop valve 14, a motor bottom plate 15, a load P16, a hydraulic cylinder return port 17, a cylinder lower cavity pipeline 18, a hydraulic control check valve 19, a cylinder upper cavity pipeline 20, a second check valve 21 and an oil suction port 22.
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 utility model provides a hydraulic press increases efficiency device as shown in fig. 1-2, including original hydraulic system, hydraulic system's work hydro-cylinder epicoele is connected with the cartridge valves through hydro-cylinder epicoele pipeline 20, and installs second check valve 21 on the hydro-cylinder epicoele pipeline 20, hydraulic system's work hydro-cylinder return oil mouth 17 of hydro-cylinder passes through hydro-cylinder cavity of resorption pipeline 18 and is connected with the cartridge valves, and installs hydraulic control check valve 19 on the hydro-cylinder cavity of resorption pipeline 18, and load P16 in the cartridge valves has oil pump 13 through the tube coupling.
The hydraulic system is connected in parallel with a synergistic structure, the synergistic structure comprises a motor 1 and a second oil pump 2 connected with the motor 1, a motor base plate 15 is fixed on the ground through 4M 16 expansion bolts, then the motor 1 and the second oil pump 2 are fixed on the motor base plate 15, and the second oil pump 2 is connected to the motor 1 through a tooth-type coupler and a bell jar in sequence. The output end of the second oil pump 2 is connected to a load P16 through a low-pressure speed-increasing pipeline 5 and a high-pressure pipeline 6, a first one-way valve 7 is connected between the low-pressure speed-increasing pipeline 5 and the high-pressure pipeline 6, the second oil pump 2 is connected with an unloading valve 8 through a pipeline, the unloading valve 8 is connected to the load P16 through a control loop 9, the unloading valve 8 is connected to a first oil return port 10 of a hydraulic oil tank through a pipeline, and the unloading pressure of the unloading valve 8 is 8MPA.
The second oil pump 2 is connected to a second oil return port 11 of the hydraulic oil tank through a pipeline, an overflow valve 3 is installed on the pipeline, the pressure of the overflow valve 3 is 10MPA, a pressure gauge 4 is installed on the low-pressure speed-increasing pipeline 5, and the overflow valve 3, the pressure gauge 4 and a hydraulic special tee joint for an unloading port are installed on an output flange of the oil pump 2.
The input end of the second oil pump 2 is connected to an oil suction opening 22 of the hydraulic oil tank through an oil suction pipeline 12, and the stop valve 14 is installed on the oil suction pipeline 12.
And the hydraulic oil tank is filled with 46# hydraulic oil, the second oil pump 2 is independently started, the unloading pressure of the unloading valve 8 is set to be 8MPA, and the pressure of the overflow valve 3 is set to be 10MPA. At this point, the first oil pump 13 can be started to operate the equipment according to a normal operation program.
The utility model discloses parallelly connected an independent increase structure in former hydraulic system guarantees all not have any interference with former equipment's all configurations and function and operation method, makes the total output volume of oil pump 13 and oil pump two 2 increase. Thereby each technology action of letting the working cylinder: descending, pressurizing, returning and ejecting actions are accelerated.
When the pressure of the load P16 is small, the motor 1 drives the oil pump 2 to convey oil to the load P16 (main oil way) through the low-pressure speed-increasing pipeline 5 and the high-pressure pipeline 6, and the oil output by the oil pump I13 are combined into a position to jointly act on the working oil cylinder. When the pressure is gradually increased along with the increase of the load P and the final pressure is larger than the unloading pressure set by the unloading valve 8, the unloading valve 8 is conducted under the action of control oil in the control loop 9, the one-way valve 7 is closed, the pressure oil output by the oil pump 2 is unloaded back to the hydraulic oil tank, the whole hydraulic device runs in a no-load mode, and at the moment, the first oil pump 13 continues to input high-pressure oil to the working oil cylinder. When the high pressure ends the main oil circuit to release pressure, the oil pressure in the control circuit 9 is lower than the pressure set by the unloading valve 8, and the valve is closed. And oil output by the oil pump 2 is input into the main oil way through the check valve 7, and the oil output by the oil pump I13 jointly act on a lower cavity of the working oil cylinder to drive the sliding block to quickly return to a zero position, and at the moment, one working cycle is finished.
The utility model discloses the during operation launches the automatic control function of self flow for each technology action is accurate reliable, and flow output is servo curve form change according to pressure size simultaneously, reducible driving motor's power consumption, and can make production efficiency improve more than thirty-five percent on original basis, the utility model discloses simple structure, the spare part of adoption is less, and the cost is lower.
Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. The hydraulic press increases the efficiency device, including hydraulic system, its characterized in that: the hydraulic system is characterized in that an upper working cylinder cavity of the hydraulic system is connected with a cartridge valve group through an upper cylinder cavity pipeline (20), a second check valve (21) is installed on the upper cylinder cavity pipeline (20), a hydraulic cylinder return oil port (17) of the working cylinder of the hydraulic system is connected with the cartridge valve group through a lower cylinder cavity pipeline (18), a hydraulic control check valve (19) is installed on the lower cylinder cavity pipeline (18), and a load P (16) in the cartridge valve group is connected with a first oil pump (13) through a pipeline;
hydraulic system connects in parallel has synergistic structure, and synergistic structure includes motor (1), two (2) of oil pump be connected with motor (1), the output of two (2) of oil pump is connected to load P (16) through low pressure acceleration rate pipeline (5) and high-pressure line (6), and is connected with first check valve (7) between low pressure acceleration rate pipeline (5) and high-pressure line (6), oil pump two (2) are connected with unloading valve (8) through the pipeline, and unloading valve (8) are connected to load P (16) through control circuit (9).
2. The hydraulic machine efficiency increasing apparatus of claim 1 wherein: and a pressure gauge (4) is arranged on the low-pressure speed-increasing pipeline (5).
3. The hydraulic machine efficiency increasing apparatus of claim 1 wherein: the unloading valve (8) is connected to a first oil return port (10) of the hydraulic oil tank through a pipeline, and the unloading pressure of the unloading valve (8) is 8MPA.
4. Hydraulic machine efficiency-increasing device according to claim 1, characterised in that: the second oil pump (2) is connected to a second oil return port (11) of the hydraulic oil tank through a pipeline, an overflow valve (3) is installed on the pipeline, and the pressure of the overflow valve (3) is 10MPA.
5. The hydraulic machine efficiency increasing apparatus of claim 1 wherein: the input end of the second oil pump (2) is connected to an oil suction opening (22) of the hydraulic oil tank through an oil suction pipeline (12), and a stop valve (14) is installed on the oil suction pipeline (12).
6. The hydraulic machine efficiency increasing apparatus of claim 1 wherein: the motor (1) and the second oil pump (2) are fixed on the motor bottom plate (15), and the motor bottom plate (15) is fixed on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221613470.1U CN217761540U (en) | 2022-06-27 | 2022-06-27 | Efficiency increasing device of hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221613470.1U CN217761540U (en) | 2022-06-27 | 2022-06-27 | Efficiency increasing device of hydraulic press |
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| Publication Number | Publication Date |
|---|---|
| CN217761540U true CN217761540U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221613470.1U Active CN217761540U (en) | 2022-06-27 | 2022-06-27 | Efficiency increasing device of hydraulic press |
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| Country | Link |
|---|---|
| CN (1) | CN217761540U (en) |
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- 2022-06-27 CN CN202221613470.1U patent/CN217761540U/en active Active
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Efficiency increasing device for hydraulic press Effective date of registration: 20231103 Granted publication date: 20221108 Pledgee: Bank of China Limited Dalian Jinpu New Area Branch Pledgor: DALIAN TONGTAI AUTO PARTS Co.,Ltd. Registration number: Y2023980064235 |