CN210482438U - Control device for hydraulic pump motor of electric loader - Google Patents
Control device for hydraulic pump motor of electric loader Download PDFInfo
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- CN210482438U CN210482438U CN201921192131.9U CN201921192131U CN210482438U CN 210482438 U CN210482438 U CN 210482438U CN 201921192131 U CN201921192131 U CN 201921192131U CN 210482438 U CN210482438 U CN 210482438U
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- hydraulic pump
- pump motor
- frequency converter
- speed
- loader
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Abstract
The utility model relates to a controlling means of electronic loader hydraulic pump motor. The hydraulic pump motor is in line connection with a frequency converter, the frequency converter is connected with a power control system, a first control line of the frequency converter is connected with one end of a high-low speed control switch, and the other end of the high-low speed control switch is connected with a second control line of the frequency converter. The utility model discloses a parameter of setting for the converter makes the hydraulic pump motor of electric loader have two kinds of mode of high, low-speed, and electric loader is during the preparation of work, and the hydraulic pump adopts the energy-conserving mode of low-speed, and operating time adopts fast-speed mode, practices thrift the electric energy, reduce cost, extension battery life.
Description
Technical Field
The utility model relates to an electric loader, especially a controlling means of electric loader hydraulic pump motor.
Background
At present, the national atmospheric pollution treatment intensity is getting larger and larger, and enterprises are required to save energy and reduce emission. The loader is used as an engineering machine and has a wide application range, such as engineering construction, factories and mines, ports and the like. The traditional loader adopts a diesel engine as power, has high horsepower and is large in discharge. The electric loader solves the problem of emission of the traditional loader and is suitable for the requirements of national new energy. The rotating speed of the hydraulic pump is the working rotating speed, the motor of the hydraulic pump is the highest rotating speed, and the hydraulic system and the steering system do not work during the working preparation period of the electric loader, so that the waste of a power supply is caused, and the working time after one-time full charging is shortened.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a power-saving electric loader hydraulic pump motor's controlling means.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a controlling means of electronic loader hydraulic pump motor, includes the hydraulic pump, the hydraulic pump motor, the output shaft of hydraulic pump motor passes through the key-type connection with the input hollow shaft of hydraulic pump, and the hydraulic pump is the duplex pump, and the hydraulic pump motor passes through line connection with the converter, and the converter is connected with power control system, and the first control line and the one end of high low-speed control switch of converter are connected, and the other end and the second control line of converter of high low-speed control switch are connected.
Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:
the parameters of the frequency converter are set, so that a hydraulic pump motor of the electric loader has a high-speed working mode and a low-speed working mode, the hydraulic pump adopts a low-speed energy-saving mode during the working preparation period of the electric loader, and the working time adopts a high-speed working mode, so that the electric energy is saved, the cost is reduced, and the service life of a battery is prolonged.
Further the utility model discloses an optimization scheme is:
the high-low speed control switch is arranged on an instrument panel in the cab.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure, a hydraulic pump 1; a hydraulic pump motor 2; a frequency converter 3; a high-low speed control switch 4; a first control line 5; a second control line 6.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, a control device for a hydraulic pump motor of an electric loader is composed of a hydraulic pump 1, a hydraulic pump motor 2, a frequency converter 3 and a high-low speed control switch 4. The hydraulic pump motor 2 is a variable frequency motor, the hydraulic pump 1 is a duplex pump, and an output shaft of the hydraulic pump motor 2 is in key connection with an input hollow shaft of the hydraulic pump 1. The hydraulic pump motor 2 is connected with the frequency converter 3 through a line, and the frequency converter 3 is connected with the power supply control system through a line. The first control line 5 of the frequency converter 3 is connected with one end of the high-low speed control switch 4, and the other end of the high-low speed control switch 4 is connected with the second control line 6 of the frequency converter 3. The high-low speed control switch 4 is arranged on an instrument panel in a cab, so that a driver of the electric loader can operate conveniently.
The parameter of converter 3 sets up, and the low-speed mode is applicable to work preparation operating mode, and hydraulic pump motor 2's rotational speed is 800 revolutions per minute, and the high-speed mode is applicable to operating mode, and hydraulic pump motor 2's rotational speed is 1500 revolutions per minute. When the high-low speed control switch 4 is switched on, the rotating speed of the hydraulic pump motor 2 is 1500 revolutions per minute; when the high-low speed control switch 4 is switched off, the rotating speed of the hydraulic pump motor 2 is 800 revolutions per minute. After the electric loader is started, the high-low speed control switch 4 is operated to be in an off state, so that electric energy is saved, and when the electric loader is about to operate, the high-low speed control switch 4 is operated to be in an on state, so that the hydraulic pump 1 has rated flow and pressure to operate.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. A control device of a hydraulic pump motor of an electric loader comprises a hydraulic pump and a hydraulic pump motor, wherein an output shaft of the hydraulic pump motor is in key connection with an input hollow shaft of the hydraulic pump.
2. The control device for the hydraulic pump motor of the electric loader according to claim 1, wherein the high-low speed control switch is mounted on an instrument panel in the cab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192131.9U CN210482438U (en) | 2019-07-26 | 2019-07-26 | Control device for hydraulic pump motor of electric loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921192131.9U CN210482438U (en) | 2019-07-26 | 2019-07-26 | Control device for hydraulic pump motor of electric loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210482438U true CN210482438U (en) | 2020-05-08 |
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ID=70532951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921192131.9U Active CN210482438U (en) | 2019-07-26 | 2019-07-26 | Control device for hydraulic pump motor of electric loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210482438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409547A (en) * | 2019-07-26 | 2019-11-05 | 唐山鼎石汽车制造有限公司 | The control device of electric loader hydraulic pump motor |
| CN111856976A (en) * | 2020-07-31 | 2020-10-30 | 徐工集团工程机械股份有限公司科技分公司 | Control system and method for hydraulic motor of electric loader |
-
2019
- 2019-07-26 CN CN201921192131.9U patent/CN210482438U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409547A (en) * | 2019-07-26 | 2019-11-05 | 唐山鼎石汽车制造有限公司 | The control device of electric loader hydraulic pump motor |
| CN111856976A (en) * | 2020-07-31 | 2020-10-30 | 徐工集团工程机械股份有限公司科技分公司 | Control system and method for hydraulic motor of electric loader |
| CN111856976B (en) * | 2020-07-31 | 2022-05-03 | 徐工集团工程机械股份有限公司科技分公司 | Control system and method for hydraulic motor of electric loader |
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