CN213981406U - Energy-saving hydraulic oil circuit system - Google Patents
Energy-saving hydraulic oil circuit system Download PDFInfo
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- CN213981406U CN213981406U CN202022909264.2U CN202022909264U CN213981406U CN 213981406 U CN213981406 U CN 213981406U CN 202022909264 U CN202022909264 U CN 202022909264U CN 213981406 U CN213981406 U CN 213981406U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides an energy-conserving hydraulic pressure oil piping system belongs to hydraulic pressure oil circuit technical field, include: oil tank, direct current servo motor, gear pump, advance oil pipe, play oil pipe, oil discharge unit and work unit, the gear pump passes through advance oil pipe with the oil tank is connected, the gear pump passes through go out oil pipe with the work unit is connected, the work unit passes through the oil discharge unit with the oil tank is connected, direct current servo motor with thereby the drive is connected in the gear pump linkage the gear pump work. The utility model has the advantages that: this hydraulic pressure oil piping system can play energy-conserving effect to just can export when servo motor keeps active demand in whole operation, the phenomenon of idle running when not having the demand, thereby reach energy-conserving effect.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic pressure oil circuit, a energy-conserving hydraulic pressure oil piping system is related to.
Background
The hydraulic oil circuit is a system for providing power or hydraulic pressure for hydraulic equipment, at present, the hydraulic oil circuit system is generally applied to an injection molding machine, the injection molding machine is provided with a hydraulic system, and the hydraulic oil circuit system can provide power for all actions of the injection molding machine and meet the requirements of pressure, speed, position control and the like required by all parts of the injection molding machine.
For example, the invention patent with the application number of 202010753025.4 discloses an injection molding machine mold locking hydraulic system with a closed oil path, which comprises a mold locking mechanism, wherein the mold locking mechanism comprises a mold locking oil cylinder, an oil pump, a reversing device, a main sensor and a control subsystem, an oil outlet of the oil pump is communicated with the reversing device through an oil inlet pipeline, the reversing device is communicated with a first oil port of the mold locking oil cylinder through a first oil path, a second oil port of the mold locking oil cylinder is communicated with the reversing device through a second oil path, the reversing device is communicated with an oil suction port of the oil pump through an oil return pipeline, and the oil pump, the oil inlet pipeline, the reversing device, the first oil path, the mold locking oil cylinder, the second oil path and the oil return pipeline form the closed hydraulic oil path; the main sensor is used for acquiring movement information capable of reflecting the movement condition of the load, and the control subsystem generates a control instruction according to the movement information to carry out real-time closed-loop control on the motor.
The hydraulic system actually discloses a hydraulic oil circuit, but the design of the hydraulic oil circuit has the defect of high energy consumption, so that the hydraulic system has certain improvement space.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, provide an energy-conserving hydraulic pressure oil piping system.
The purpose of the utility model can be realized by the following technical proposal: an energy-saving hydraulic oil circuit system, comprising: oil tank, direct current servo motor, gear pump, advance oil pipe, play oil pipe, oil discharge unit and work unit, the gear pump passes through advance oil pipe with the oil tank is connected, the gear pump passes through go out oil pipe with the work unit is connected, the work unit passes through the oil discharge unit with the oil tank is connected, direct current servo motor with thereby the drive is connected in the gear pump linkage the gear pump work.
Preferably, the working unit comprises a first working assembly, a second working assembly, a first oil pipe and a second oil pipe, the first working assembly is connected with the oil outlet pipe through the first oil pipe, and the second working assembly is connected with the oil outlet pipe through the second oil pipe.
Preferably, the oil discharge unit comprises a first proportional overflow valve, and the first proportional overflow valve is connected with the first oil pipe and the oil tank.
Preferably, the oil discharge unit further comprises a second proportional overflow valve, and the second proportional overflow valve is connected with the second oil pipe and the oil tank.
Preferably, the first working assembly comprises a mold adjusting hydraulic motor, a mold opening and closing oil cylinder, an ejection oil cylinder and three first electromagnetic directional valves, the mold adjusting hydraulic motor, the mold opening and closing oil cylinder and the ejection oil cylinder are respectively connected with the three first electromagnetic directional valves, and the three first electromagnetic directional valves are all connected with the first oil pipe and the oil tank.
Preferably, the second working assembly comprises an injection seat oil cylinder, an injection oil cylinder, a pre-molding hydraulic motor and three second electromagnetic directional valves, wherein the injection seat oil cylinder, the injection oil cylinder and the pre-molding hydraulic motor are respectively connected with the three second electromagnetic directional valves, and the second electromagnetic directional valves are all connected with the second oil pipe and the oil tank.
Preferably, the oil inlet pipe is provided with an oil suction filter.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this hydraulic pressure oil piping system can play energy-conserving effect to just can export when servo motor keeps active demand in whole operation, the phenomenon of idle running when not having the demand, thereby reach energy-conserving effect.
2. The direct current servo motor can output when keeping active demand in the whole operation, and the phenomenon of idling when no demand exists is avoided, so that the energy-saving effect is achieved, and compared with the traditional alternating current motor, the energy can be saved by 35-45% when the constant delivery pump oil way system is driven by the alternating current motor.
3. After the oil unloading unit is arranged, the redundant hydraulic oil can be directly unloaded, so that the purpose of independent oil return is achieved, the purpose of saving more energy is achieved, and the energy saving rate can be improved by 5-6% again.
Drawings
Fig. 1 is a schematic diagram of the energy-saving hydraulic oil circuit system of the present invention.
Fig. 2 is a schematic structural diagram of the first working assembly of the present invention.
Fig. 3 is a schematic structural diagram of a second working assembly of the present invention.
In the figure, 100, the oil tank; 200. a DC servo motor; 300. a gear pump; 400. an oil inlet pipe; 500. an oil outlet pipe; 600. an oil suction filter; 710. a first working assembly; 711. a die-adjusting hydraulic motor; 712. opening and closing the mold oil cylinder; 713. ejecting an oil cylinder; 714. a first electromagnetic directional valve; 720. a second working assembly; 721. a base injection oil cylinder; 722. an injection oil cylinder; 723. pre-molding a hydraulic motor; 724. a second electromagnetic directional valve; 730. a first oil pipe; 740. a second oil pipe; 810. a first proportional relief valve; 820. and the second proportional overflow valve.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2, and 3, an energy-saving hydraulic oil circuit system includes: the hydraulic oil circuit system comprises an oil tank 100, a direct-current servo motor 200, a gear pump 300, an oil inlet pipe 400, an oil outlet pipe 500, an oil discharge unit and a working unit, and can be applied to an injection molding machine, and particularly can provide power and pressure for each part of the injection molding machine.
The gear pump 300 is connected with the oil tank 100 through the oil inlet pipe 400, the gear pump 300 is connected with the working unit through the oil outlet pipe 500, preferably, one end of the oil inlet pipe 400 is connected with an oil inlet cavity of the gear pump 300, the other end of the oil inlet pipe 400 is connected with the oil tank 100, and hydraulic oil in the oil tank 100 can be sucked into the gear pump 300 through the oil inlet pipe 400; one end of the oil outlet pipe 500 is connected with the oil outlet cavity of the gear pump 300, the other end of the oil outlet pipe 500 is connected with the working unit, and the gear pump 300 supplies hydraulic oil pressure to enable the hydraulic oil to be pumped into the working unit through the oil outlet pipe 500.
The working unit is connected with the oil tank 100 through the oil unloading unit, and the direct current servo motor 200 is in linkage connection with the gear pump 300 to drive the gear pump 300 to work.
Preferably, the hydraulic oil circuit system can achieve the energy saving effect mainly by arranging the direct current servo motor 200 and the oil discharge unit, wherein an output shaft of the direct current servo motor 200 is connected with a driving shaft of the gear pump 300.
And an oil discharge unit is arranged on an oil return pipeline between the working unit and the oil tank 100, namely, two oil pipes are arranged on the oil discharge unit, one of the two oil pipes is connected with the working unit, and the other oil pipe is connected with the oil tank 100, so that the working unit is connected with the oil tank 100 through the oil discharge unit.
Specifically, the dc servo motor 200 is a power source of the whole hydraulic oil system, and during the operation, the oil pressure pushes the oil cylinder or the hydraulic motor by switching the reversing valve, thereby realizing linear or rotational movement, and each movement has various speed change requirements, and different pause time exists between movements, when the required speed changes, the dc servo motor 200 outputs different rotation speeds according to the speed requirement, when the movement stops (i.e. when the required speed is O), the rotation speed of the servo motor is "0", when the movement requires high pressure, the dc servo motor 200 keeps the low rotation speed and the large torque following.
On the basis of the energy-saving principle, the direct current servo motor 200 can output when the power demand is kept in the whole operation, and the phenomenon of idling when no demand exists is avoided, so that the energy-saving effect is achieved, and compared with the old alternating current motor, the constant delivery pump oil way system can save energy by 35-45%.
After the oil unloading unit is arranged, the purpose of unpowered oil unloading can be achieved, specifically, the oil cylinder or the hydraulic motor can generate reverse action due to external force in the running process, redundant hydraulic oil is generated at this time, the direct current servo motor 200 needs to be reversely rotated to pump the hydraulic oil, the power consumption of the motor is wasted for processing products, and certain damage is caused to an oil pump, and after the oil unloading unit is arranged, the redundant hydraulic oil can be directly unloaded, so that the purpose of independent oil return is achieved, the purpose of more energy saving is achieved, and the energy saving rate can be increased by 5-6% again.
As shown in fig. 1, 2 and 3, based on the above embodiment, the working unit includes a first working module 710, a second working module 720, a first oil pipe 730 and a second oil pipe 740, the first working module 710 is connected to the production line 500 through the first oil pipe 730, and the second working module 720 is connected to the production line 500 through the second oil pipe 740.
Preferably, the working units are actually actuators and corresponding pipelines of the injection molding machine, and more specifically, the first working assembly 710 and the second working assembly 720 are cylinders and hydraulic motors with different functions, for example, the first working assembly 710 may be a plurality of cylinders and hydraulic motors, and the second working assembly 720 may also be a plurality of cylinders and hydraulic motors.
The first working module 710 is connected to the flow line 500 through the first oil pipe 730, and the second working module 720 is connected to the flow line 500 through the second oil pipe 740, so that the hydraulic oil in the flow line 500 can be supplied to the first working module 710 and the second working module 720, so that the first working module 710 and the second working module 720 can perform linear or rotational movement.
As shown in fig. 1 and 2, in the above embodiment, the oil discharge unit includes a first proportional relief valve 810, and the first proportional relief valve 810 is connected to the first oil pipe 730 and the oil tank 100.
Preferably, the oil discharging unit is actually two proportional relief valves, wherein when the first working assembly 710 generates a reverse action due to an external force during the operation process to generate an excess hydraulic oil, the excess hydraulic oil can flow back into the oil tank 100 from the first oil pipe 730 through the first proportional relief valve 810, so that the direct current servo motor 200 is not required to pump the excess hydraulic oil, thereby improving the energy saving rate.
As shown in fig. 1, 2 and 3, in addition to the above embodiment, the oil discharge unit further includes a second proportional relief valve 820, and the second proportional relief valve 820 is connected to the second oil pipe 740 and the oil tank 100.
Preferably, the oil discharging unit is actually two proportional relief valves, wherein when the second working assembly 720 generates a reverse action due to an external force during the operation process to generate a surplus hydraulic oil, the surplus hydraulic oil can flow back into the oil tank 100 from the second oil pipe 740 through the second proportional relief valve 820, so that the surplus hydraulic oil does not need to be pumped back by the dc servo motor 200, thereby improving the energy saving rate.
It should be noted that the first and second proportional relief valves 810 and 820 are assembled with the first and second working units 710 and 720, respectively, and are operated simultaneously and independently connected to the tank 100, so that the hydraulic oil can be prevented from flowing between the first and second working units 710 and 720.
As shown in fig. 1 and 2, based on the above embodiment, the first working assembly 710 includes a mold adjusting hydraulic motor 711, a mold opening and closing cylinder 712, an ejection cylinder 713, and three first electromagnetic directional valves 714, the mold adjusting hydraulic motor 711, the mold opening and closing cylinder 712, and the ejection cylinder 713 are respectively connected to the three first electromagnetic directional valves 714, and the three first electromagnetic directional valves 714 are all connected to the first oil pipe 730 and the oil tank 100.
Preferably, the mold adjusting hydraulic motor 711 can adjust a mold, the mold opening and closing cylinder 712 can open or close the mold, the ejection cylinder 713 can realize an ejection or ejection effect, the three first electromagnetic directional valves 714 can respectively control the mold adjusting hydraulic motor 711, the mold opening and closing cylinder 712 and the ejection cylinder 713 to move, and the movement direction of the motor or the cylinder can be changed by switching the first electromagnetic directional valves 714.
As shown in fig. 1 and fig. 3, on the basis of the above embodiment, the second working assembly 720 includes a seat injection cylinder 721, an injection cylinder 722, a premolding hydraulic motor 723, and three second electromagnetic directional valves 724, the seat injection cylinder 721, the injection cylinder 722, and the premolding hydraulic motor 723 are respectively connected to the three second electromagnetic directional valves 724, and the three second electromagnetic directional valves 724 are all connected to the second oil pipe 740 and the oil tank 100.
Preferably, the injection seat cylinder 721 can adjust the injection seat, so that the injection seat moves forward or backward, the injection cylinder 722 can achieve the injection effect, the premolding hydraulic motor 723 can perform premolding, the three second electromagnetic directional valves 724 can respectively control the injection seat cylinder 721, the injection cylinder 722 and the premolding hydraulic motor 723 to act, and the movement direction of the motor or the cylinder can be changed by switching the second electromagnetic directional valves 724.
As shown in fig. 1, in addition to the above embodiment, the oil inlet pipe 400 is provided with an oil suction filter 600. Preferably, the suction oil filter 600 can filter the hydraulic oil, and the gear pump 300 can suck cleaner hydraulic oil through the suction oil filter 600.
In addition, a pressure sensor and a pressure gauge are provided on the oil outlet pipe 500, so that it is convenient to observe the oil outlet pressure of the gear pump 300.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. An energy-saving hydraulic oil circuit system, characterized by comprising: oil tank, direct current servo motor, gear pump, advance oil pipe, play oil pipe, oil discharge unit and work unit, the gear pump passes through advance oil pipe with the oil tank is connected, the gear pump passes through go out oil pipe with the work unit is connected, the work unit passes through the oil discharge unit with the oil tank is connected, direct current servo motor with thereby the drive is connected in the gear pump linkage the gear pump work.
2. The energy-saving hydraulic oil circuit system as claimed in claim 1, wherein: the working unit comprises a first working assembly, a second working assembly, a first oil pipe and a second oil pipe, the first working assembly passes through the first oil pipe and is connected with the oil outlet pipe, and the second working assembly passes through the second oil pipe and is connected with the oil outlet pipe.
3. The energy-saving hydraulic oil circuit system as claimed in claim 2, wherein: the oil discharge unit comprises a first proportional overflow valve, and the first proportional overflow valve is connected with the first oil pipe and the oil tank.
4. An energy efficient hydraulic fluid circuit system as claimed in claim 3, wherein: the oil discharge unit further comprises a second proportional overflow valve, and the second proportional overflow valve is connected with the second oil pipe and the oil tank.
5. An energy efficient hydraulic fluid circuit system as claimed in claim 3, wherein: the first working assembly comprises a die adjusting hydraulic motor, a die opening and closing oil cylinder, an ejection oil cylinder and three first electromagnetic reversing valves, the die adjusting hydraulic motor, the die opening and closing oil cylinder and the ejection oil cylinder are respectively connected with the three first electromagnetic reversing valves, and the three first electromagnetic reversing valves are all connected with the first oil pipe and the oil tank.
6. The energy-saving hydraulic oil circuit system as claimed in claim 4, wherein: the second working assembly comprises an injection seat oil cylinder, an injection oil cylinder, a pre-molding hydraulic motor and three second electromagnetic directional valves, wherein the injection seat oil cylinder, the injection oil cylinder and the pre-molding hydraulic motor are respectively connected with the second electromagnetic directional valves, and the second electromagnetic directional valves are all connected with the second oil pipes and the oil tanks.
7. The energy-saving hydraulic oil circuit system as claimed in claim 1, wherein: the oil inlet pipe is provided with an oil suction filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022909264.2U CN213981406U (en) | 2020-12-07 | 2020-12-07 | Energy-saving hydraulic oil circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022909264.2U CN213981406U (en) | 2020-12-07 | 2020-12-07 | Energy-saving hydraulic oil circuit system |
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| Publication Number | Publication Date |
|---|---|
| CN213981406U true CN213981406U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022909264.2U Active CN213981406U (en) | 2020-12-07 | 2020-12-07 | Energy-saving hydraulic oil circuit system |
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|---|---|
| CN (1) | CN213981406U (en) |
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- 2020-12-07 CN CN202022909264.2U patent/CN213981406U/en active Active
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