CN217761490U - Quick starting drive of high-power hydraulic system - Google Patents
Quick starting drive of high-power hydraulic system Download PDFInfo
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- CN217761490U CN217761490U CN202221723517.XU CN202221723517U CN217761490U CN 217761490 U CN217761490 U CN 217761490U CN 202221723517 U CN202221723517 U CN 202221723517U CN 217761490 U CN217761490 U CN 217761490U
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Abstract
The utility model relates to the technical field of hydraulic system starting, and discloses a quick starting device of a high-power hydraulic system, which comprises a main pump, a main motor, a hydraulic motor and the like; the main motor, the main pump and the hydraulic motor are coaxially connected through the coupler in sequence; the main pump is connected with an energy accumulator through a first oil pipeline, the first oil pipeline is fixedly connected with a first electromagnetic directional valve, and the energy accumulator is fixedly connected with a pressure sensor; the energy accumulator is connected with the hydraulic motor through a second oil pipeline, and a second electromagnetic reversing valve is fixedly connected to the second oil pipeline; the motor speed sensor is fixedly connected to the shaft of the main motor. The system can be stopped immediately when the system needs to be stopped, and can be started quickly when the system needs to be started, so that the negative influence caused by frequent starting and stopping is thoroughly eliminated.
Description
Technical Field
The utility model relates to a hydraulic system's starting drive, concretely relates to hydraulic system quick starting drive of high-power, intermittent type formula work.
Background
In the prior art, due to factors such as large power, large quantity and complex system of a motor, the starting time of part of large hydraulic equipment is too long, and impact and other conditions exist on a power grid and a motor electric control system during starting, so that the standby time usually exists during working, for example, free forging and die forging equipment matched with a plurality of heating furnaces is used, due to factors such as production scheduling of the heating furnaces and accurate time requirement of heating process, the main pump motor of the hydraulic system is not capable of bearing multiple starting and stopping within a short time after the main machine is started and is required to wait for heating to reach the temperature for carrying out forging operation.
Disclosure of Invention
To the problem that hydraulic system main pump motor can't adapt to frequently to open among the above-mentioned prior art and stop, the utility model aims at providing a high-power hydraulic system quick starting drive, this quick starting drive can realize shutting down immediately when needs are shut down, can quick start when needs start, thoroughly eliminates frequently to open the negative effects who stops causing.
In order to achieve the above object, the utility model adopts the following technical scheme: a quick starting device of a high-power hydraulic system comprises a main pump and a main motor, and is characterized by further comprising a hydraulic motor, an energy accumulator, a pressure sensor, a first electromagnetic directional valve, a second electromagnetic directional valve and a motor rotating speed sensor; the main motor, the main pump and the hydraulic motor are coaxially connected through a coupler in sequence; the main pump is connected with an energy accumulator through a first oil pipeline, the first oil pipeline is fixedly connected with a first electromagnetic directional valve, and the energy accumulator is fixedly connected with a pressure sensor; the energy accumulator is connected with the hydraulic motor through a second oil pipeline, and a second electromagnetic reversing valve is fixedly connected to the second oil pipeline; the motor speed sensor is fixedly connected to the shaft of the main motor.
Compared with the prior art, the utility model discloses the beneficial effect who possesses is: the utility model discloses a set up, can be at the main pump normal during operation, carry out the energy storage through the energy storage ware, and through setting such as pressure sensor, ensure that energy storage ware pressure is in the within range of a regulation, when need start-up after shutting down at the short time, pressure through the release energy storage ware, drive one with the main pump, the hydraulic motor of main motor series connection makes the motor possess a start-up acceleration, the rotational speed through motor speed sensor control main motor, when speed reaches the setting value, carry out the start-up of main motor through electric control modes such as soft start, the load of power supply electric wire netting when can effectively reduce the motor and start, effectively eliminate frequently to open the influence of opening to motor electrical system and electric wire netting.
Drawings
FIG. 1 is a schematic view of a hydraulic principle structure of the present invention;
the system comprises a main motor 1, a main motor 2, a rotating speed sensor 3, a main pump 4, a hydraulic motor 5, an electromagnetic directional valve 6, a directional valve 7, a pressure sensor 8 and an energy accumulator.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
In addition, the details are not described below with reference to the prior art.
As shown in fig. 1, the utility model discloses a high-power hydraulic system quick starting drive, including main pump 3, main motor 1, hydraulic motor 4, energy storage ware 8, pressure sensor 7, electromagnetic directional valve 5, speed sensor 6. The main motor 1, the main pump 3 and the hydraulic motor 4 are sequentially and coaxially connected in series through a coupler, an energy accumulator 8 is connected to the main pump 3 in a conventional mode through a first oil pipeline, a first electromagnetic directional valve 5 is fixedly connected to the first oil pipeline in a conventional mode, a pressure sensor 7 is fixedly connected to the energy accumulator 8 in a conventional mode, when the hydraulic system works normally, the pressure of the energy accumulator 8 is monitored through the pressure sensor 7, when the pressure is lower than a set value, the first electromagnetic directional valve 5 is powered on, the main motor 1 drives the main pump 3 to supplement energy storage to the energy accumulator 8, when the pressure of the energy accumulator 8 reaches the set value, the first electromagnetic directional valve 5 is powered off, the energy accumulator 8 is cut off from the system, the pressure of the energy accumulator 8 is monitored through the pressure sensor 7 to be kept at a certain pressure, and the main pump 3 normally outputs pressure to the system.
The energy accumulator 8 is connected with the hydraulic motor 4 through a second oil pipeline in a conventional manner, and the second electromagnetic directional valve 6 is fixedly connected to the second oil pipeline in a conventional manner; the motor speed sensor 2 is fixedly connected to an output shaft of the main motor 1 in a conventional manner. The pressure sensor 7 and the motor speed sensor 2 respectively upload detected communication information to the PLC and the electric control system, and the PLC and the electric control system (which are conventional technologies) respectively control the first electromagnetic directional valve 5, the second electromagnetic directional valve 6, and the main motor 1. When the equipment needs to be shut down, the main motor 1 is shut down, energy is stored in the energy accumulator 8 at the moment, when the equipment needs to be started after being shut down in a short time, the PLC and the electric control system control the second electromagnetic reversing valve 6 to be electrified, the energy storage in the energy accumulator 8 drives the hydraulic motor 4, as the hydraulic motor 4 is coaxially connected with the main pump 3 and the main motor 1 in series, the hydraulic motor 4 drives the main motor 1 to rotate under the driving of the energy storage hydraulic oil pressure, the motor rotating speed sensor 2 judges at the moment and drives the main motor 1 to the set rotating speed, when the main motor 1 has the initial speed of the set rotating speed, the main motor 1 is powered on through a conventional soft start mode and the like, the main motor is started in a shorter time, and the starting current of the main motor 1 is far lower than the normal starting current.
Use this large-scale clearance formula hydraulic equipment who uses novel quick starting drive, have a rest temporarily at operating personnel, the product is unusual to be handled temporarily, when waiting for the process product to satisfy the processing condition, all can cut off main pump motor power immediately, after the short time standby, through this quick starting drive, can accomplish the start-up of main pump motor (being main motor) again in the time of utmost point short, and the starting current of motor descends by a wide margin, has reduced the impact to electric wire netting etc..
Claims (1)
1. A quick starting device of a high-power hydraulic system comprises a main pump and a main motor, and is characterized by further comprising a hydraulic motor, an energy accumulator, a pressure sensor, a first electromagnetic directional valve, a second electromagnetic directional valve and a motor rotating speed sensor; the main motor, the main pump and the hydraulic motor are coaxially connected through a coupler in sequence; the main pump is connected with an energy accumulator through a first oil pipeline, the first oil pipeline is fixedly connected with a first electromagnetic directional valve, and the energy accumulator is fixedly connected with a pressure sensor; the energy accumulator is connected with the hydraulic motor through a second oil pipeline, and a second electromagnetic reversing valve is fixedly connected to the second oil pipeline; the motor speed sensor is fixedly connected to the shaft of the main motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221723517.XU CN217761490U (en) | 2022-07-06 | 2022-07-06 | Quick starting drive of high-power hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221723517.XU CN217761490U (en) | 2022-07-06 | 2022-07-06 | Quick starting drive of high-power hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217761490U true CN217761490U (en) | 2022-11-08 |
Family
ID=83871838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221723517.XU Active CN217761490U (en) | 2022-07-06 | 2022-07-06 | Quick starting drive of high-power hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217761490U (en) |
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2022
- 2022-07-06 CN CN202221723517.XU patent/CN217761490U/en active Active
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