CN216515852U - Constant power control system of constant delivery pump for electric loader - Google Patents
Constant power control system of constant delivery pump for electric loader Download PDFInfo
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- CN216515852U CN216515852U CN202122726469.1U CN202122726469U CN216515852U CN 216515852 U CN216515852 U CN 216515852U CN 202122726469 U CN202122726469 U CN 202122726469U CN 216515852 U CN216515852 U CN 216515852U
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Abstract
The utility model discloses a constant power control system of a constant delivery pump for an electric loader, and belongs to the field of electric loader control. It includes main pump and hydro-cylinder, still includes pressure sensor and controller, pressure sensor sets up on the hydro-cylinder, main pump, hydro-cylinder and pressure sensor all with controller control connection, pressure sensor is used for detecting the operating pressure of hydro-cylinder, the controller is used for controlling the rotational speed of main pump according to pressure sensor's testing result. The energy-saving and consumption-reducing control system for the electric loader can achieve the effects of energy saving and consumption reduction as the constant power control of the constant delivery pump of the electric loader can be always kept; meanwhile, compared with the conventional method for controlling the rotating speed of the pump through the pilot pressure of the hydraulic system, the efficiency can be obviously improved.
Description
Technical Field
The utility model belongs to the field of control of electric loaders, and particularly relates to a constant power control system of a constant delivery pump for an electric loader.
Background
The power control of the existing electric loader pump generally adopts a variable pump if the constant power control is adopted, so the cost is higher. Systems employing fixed displacement pumps have no special control means, typically the speed of the pump is controlled by the pilot pressure of the hydraulic system. The efficiency is not high enough.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
Aiming at the problem that the efficiency of controlling the rotating speed of the constant delivery pump by conventionally adopting hydraulic pilot pressure is low in the prior art, the utility model provides the constant delivery pump constant power control system for the electric loader, so that the power control efficiency of the constant delivery pump is improved, and meanwhile, the effects of energy conservation and consumption reduction are achieved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A constant power control system of constant delivery pump for electric loader, including main pump and hydro-cylinder, still include pressure sensor and controller, pressure sensor sets up on the hydro-cylinder, main pump, hydro-cylinder and pressure sensor all with controller control connection, pressure sensor is used for detecting the operating pressure of hydro-cylinder, the controller is used for controlling the rotational speed of main pump according to pressure sensor's testing result.
The preferable technical scheme is as follows:
according to the energy-saving and consumption-reducing control system for the electric loader, the pressure sensor is fixedly connected with the inner wall of the oil cylinder, the piston rod of the oil cylinder is aligned with the pressure sensor, and the piston rod of the oil cylinder acts on the pressure sensor.
The energy-saving consumption-reducing control system for the electric loader further comprises a motor, and an output shaft of the motor is connected with an input shaft of the main pump.
The energy-saving and consumption-reducing control system for the electric loader further comprises a flow control valve, wherein the flow control valve is arranged on a working loop of the main pump and is connected with the controller, and the flow control valve is used for controlling the output flow of the main pump.
The energy saving and consumption reduction control system for the electric loader as described above, wherein the controller is configured to control the rotation speed of the main pump based on the detection result of the pressure sensor, and includes:
comparing the real-time pressure in the oil cylinder with a preset standard pressure according to the detection result of the pressure sensor;
when the real-time pressure in the oil cylinder is higher than the preset standard pressure, the rotating speed of the current main pump is reduced;
when the real-time pressure in the oil cylinder is lower than the preset standard pressure, the rotating speed of the current main pump is increased;
the step of reducing the rotation speed of the current main pump or increasing the rotation speed of the current main pump means controlling the rotation speed of the motor to perform linear increment or linear decrement within a preset amplitude value.
3. Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) the utility model tests the working pressure of the oil cylinder by installing the pressure sensor on the oil cylinder of the loader, and then inputs the measured data into the controller; when the pressure is increased, the output power of the system is increased, the rotating speed of the motor is reduced at the moment to reduce the power of the system, and when the pressure is low, the output power of the system is reduced, the rotating speed of the motor is increased at the moment to improve the power of the system, so that the power of the system can be kept constant basically;
(2) the energy-saving and consumption-reducing control system for the electric loader can achieve the effects of energy saving and consumption reduction as the constant power control of the constant delivery pump of the electric loader can be always kept; meanwhile, compared with the conventional method for controlling the rotating speed of the pump through the pilot pressure of the hydraulic system, the efficiency can be obviously improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an energy saving and consumption reduction control system for an electric loader according to the present invention;
in the figure: 1. an oil tank; 2. a main pump; 3. a flow control valve; 4. an oil cylinder; 5. a pressure sensor; 6. a controller; 7. an electric motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1, aiming at the problem that the efficiency of controlling the rotation speed of the constant delivery pump by using the hydraulic pilot pressure is not high in the prior art, the present embodiment provides a constant delivery pump constant power control system for an electric loader, which includes a main pump 2 and an oil cylinder 4, and further includes a pressure sensor 5 and a controller 6, wherein the pressure sensor 5 is disposed on the oil cylinder 4, the main pump 2, the oil cylinder 4 and the pressure sensor 5 are all in control connection with the controller 6, the pressure sensor 5 is used for detecting the working pressure of the oil cylinder 4, and the controller 6 is used for controlling the rotation speed of the main pump 2 according to the detection result of the pressure sensor 5.
In order to guarantee that pressure sensor 5 can carry out accurate detection to operating pressure in hydro-cylinder 4, in this embodiment will pressure sensor 5 and hydro-cylinder 4's inner wall fixed connection, the piston rod of hydro-cylinder 4 aligns pressure sensor 5 and hydro-cylinder 4's piston rod act on this pressure sensor 5, detect through doing work in real time to hydro-cylinder 4's piston rod, the accuracy obtains operating pressure in hydro-cylinder 4, wherein to hydro-cylinder 4, hydro-cylinder 4 is provided power by oil tank 1.
More specifically, the present embodiment further includes a motor 7, an output shaft of the motor 7 is connected with an input shaft of the main pump 2 through a coupling, and the motor 7 is used for providing power for the operation of the main pump 2.
More specifically, the present embodiment further includes a flow control valve 3, where the flow control valve 3 is disposed on a working circuit of the main pump 2 and connected to the controller 6, and the flow control valve 3 is configured to control an output flow of the main pump 2.
In the embodiment, the pressure sensor 5 is arranged on the oil cylinder 4 of the loader to test the working pressure of the oil cylinder 4, and then the measured data is input to the controller 6; the controller 6 controls the flow control valve 3 to reduce the output flow of the main pump 2 according to the detection result of the pressure sensor 5, thereby achieving the effects of energy conservation and consumption reduction.
Example 2
Substantially the same as in example 1. The difference is that in the energy saving and consumption reduction control system for an electric loader according to the present embodiment, the controller 6 is configured to control the rotation speed of the main pump 2 according to the detection result of the pressure sensor 5, and further includes:
comparing the real-time pressure in the oil cylinder 4 with a preset standard pressure according to the detection result of the pressure sensor 5;
when the real-time pressure in the oil cylinder 4 is higher than the preset standard pressure, the rotating speed of the current main pump 2 is reduced;
when the real-time pressure in the oil cylinder 4 is lower than the preset standard pressure, the rotating speed of the current main pump 2 is increased;
the step of reducing the current rotating speed of the main pump 2 or increasing the current rotating speed of the main pump 2 means that the rotating speed of the motor 7 is controlled to be linearly increased or decreased within a preset amplitude.
It is to be noted that the predetermined amplitude refers to a rotational speed range defined by a minimum rotational speed and a maximum rotational speed. The linear decreasing means that the controller 6 controls the rotation speed of the main pump 2 to be decreased continuously in a certain proportion. In the present embodiment, the output shaft of the motor 7 is connected to the input shaft of the main pump 2 through a coupling, and the motor 7 is configured to provide power for the operation of the main pump 2, so that the rotating speed of the main pump 2 can be controlled by controlling the rotating speed of the motor 7, and specifically, the rotating speed of the motor 7 can be decreased by 10% within the preset amplitude value with time until the rotating speed of the motor 7 reaches the minimum value required by the preset amplitude value. Since the main pump 2 is connected to the motor 7, when the rotation speed of the motor 7 is reduced, the rotation speed of the main pump 2 is reduced.
In the embodiment, the pressure sensor 5 is arranged on the oil cylinder 4 of the loader to test the working pressure of the oil cylinder 4, and then the measured data is input to the controller 6; when the pressure is increased, the output power of the system is increased, the rotating speed of the motor 7 is reduced at the moment to reduce the power of the system, and when the pressure is low, the output power of the system is reduced, the rotating speed of the motor 7 is increased at the moment to improve the power of the system, so that the power of the system can be kept basically constant.
Moreover, the constant power control can be always adopted for the constant delivery pump of the electric loader, so that the effects of energy conservation and consumption reduction can be achieved; meanwhile, compared with the conventional method for controlling the rotating speed of the pump through the pilot pressure of the hydraulic system, the efficiency can be obviously improved.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A constant power control system of constant delivery pump for electric loader, including main pump and hydro-cylinder, its characterized in that still includes pressure sensor and controller, pressure sensor sets up on the hydro-cylinder, main pump, hydro-cylinder and pressure sensor all with controller control connection, pressure sensor is used for detecting the operating pressure of hydro-cylinder, the controller is used for controlling the rotational speed of main pump according to pressure sensor's testing result.
2. Constant displacement pump constant power control system for an electric loader according to claim 1, characterized in that: the pressure sensor is fixedly connected with the inner wall of the oil cylinder, a piston rod of the oil cylinder is aligned to the pressure sensor, and the piston rod of the oil cylinder acts on the pressure sensor.
3. Constant displacement pump constant power control system for an electric loader according to claim 1, characterized in that: the motor is further included, and an output shaft of the motor is connected with an input shaft of the main pump.
4. Constant displacement pump constant power control system for an electric loader according to claim 3, characterized in that: the flow control device is characterized by further comprising a flow control valve, wherein the flow control valve is arranged on a working loop of the main pump and is connected with the controller, and the flow control valve is used for controlling the output flow of the main pump.
5. Constant displacement pump constant power control system for an electric loader according to claim 3, characterized in that: the controller is used for controlling the rotating speed of the main pump according to the detection result of the pressure sensor and comprises the following steps:
comparing the real-time pressure in the oil cylinder with a preset standard pressure according to the detection result of the pressure sensor;
when the real-time pressure in the oil cylinder is higher than the preset standard pressure, the rotating speed of the current main pump is reduced;
when the real-time pressure in the oil cylinder is lower than the preset standard pressure, the rotating speed of the current main pump is increased;
the step of reducing the rotation speed of the current main pump or increasing the rotation speed of the current main pump means controlling the rotation speed of the motor to perform linear increment or linear decrement within a preset amplitude value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122726469.1U CN216515852U (en) | 2021-11-09 | 2021-11-09 | Constant power control system of constant delivery pump for electric loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122726469.1U CN216515852U (en) | 2021-11-09 | 2021-11-09 | Constant power control system of constant delivery pump for electric loader |
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| Publication Number | Publication Date |
|---|---|
| CN216515852U true CN216515852U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122726469.1U Active CN216515852U (en) | 2021-11-09 | 2021-11-09 | Constant power control system of constant delivery pump for electric loader |
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| CN (1) | CN216515852U (en) |
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2021
- 2021-11-09 CN CN202122726469.1U patent/CN216515852U/en active Active
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Address after: Room 208, Floor 2, Building 3, No. 168, Shennan Road, Minhang District, Shanghai, 201108 Patentee after: Bureton Technology Co.,Ltd. Address before: 201100 room g68, 3 / F, building 6, 4299 Jindu Road, Minhang District, Shanghai Patentee before: Burleton Technology Co.,Ltd. |