CN212001364U - Oil-saving control system for crushing working condition of excavator and excavator - Google Patents
Oil-saving control system for crushing working condition of excavator and excavator Download PDFInfo
- Publication number
- CN212001364U CN212001364U CN202020508328.5U CN202020508328U CN212001364U CN 212001364 U CN212001364 U CN 212001364U CN 202020508328 U CN202020508328 U CN 202020508328U CN 212001364 U CN212001364 U CN 212001364U
- Authority
- CN
- China
- Prior art keywords
- excavator
- crushing
- pressure sensor
- main pump
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
The utility model provides an excavator broken operating mode fuel-economizing control system and excavator, through throttle knob adjustment high gear after, through increasing broken oil feed pressure sensor at the quartering hammer oil inlet, solve the problem that engine power is big than the actual required power of quartering hammer when the quartering hammer is operated alone, and the fuel consumption rate that causes is higher, realize energy-conserving purpose; meanwhile, a confluence proportion electromagnetic valve is added to the main pump of the excavator, and when the excavator works under multiple working conditions synchronously, the sufficient flow of the breaking hammer end is ensured.
Description
Technical Field
The utility model belongs to the broken operating mode control field of excavator especially relates to an excavator fuel-economizing control system and excavator under broken operating mode.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The excavator complete machine operation accessories comprise a breaking hammer, a quick change device, a wood grabbing device, a hydraulic ram and the like, wherein one of the accessories which are widely applied is the breaking hammer, and along with the improvement of the industrial level and the development of the productivity, the breaking hammer is applied to the aspects of mining, metallurgy, highway and railway construction, building removal, ship construction and the like; the working condition control of the breaking hammer generally adopts a manual control mode, and the manual mode is a general mode of each host factory.
The inventor finds that the conventional excavator crushing mode is mainly provided with one (B mode) or a plurality of crushing hammer modes (B1, B2, B3 and the like), various modes are switched through a manual mode switching button on a display, after the crushing mode is set, the operation of the crushing hammer is realized by operating a crushing hammer pedal, the system pressure, particularly the secondary overflow pressure of the crushing hammer, is manually adjusted when the crushing hammer is matched, the flow is set in advance through the display or a plurality of modes are set in advance according to a plurality of commonly used crushing modes, and the manual control of the crushing hammer modes is realized; it should be clear to those skilled in the art that the overall power used when only the breaking hammer is operated to perform a single action is relatively low, but in the prior art, in a breaking working condition, parameters such as secondary overflow pressure, flow and the like of the breaking hammer need to be manually adjusted, and although a plurality of modes can be preset for selection in breaking hammer modes of some manufacturers, which mode is selected according to a specific working condition is not specifically described, so that a worker can only set the modes according to experience, the gear is not matched with the actually required power of the breaking hammer, and the oil consumption rate is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists among the prior art, provide an excavator broken operating mode oil-saving control system and excavator, engine power is big than the actual required power of quartering hammer and the higher problem of fuel consumption rate that causes when solving the independent operation quartering hammer, realizes energy-conserving purpose.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides an excavator broken operating mode fuel-economizing control system, includes the master controller, its characterized in that:
the input end of the main controller is connected with the output end of a crushing oil inlet pressure sensor, and the crushing oil inlet pressure sensor is arranged in a crushing oil inlet loop; the input end of the main controller is connected with the output end of a crushing pilot pressure sensor, and the crushing pilot pressure sensor is arranged in a crushing pilot loop;
the main controller is connected with an electromagnetic valve group and an engine controller, the electromagnetic valve group comprises a first main pump proportional electromagnetic valve, a second main pump proportional electromagnetic valve and a confluence proportional electromagnetic valve, and the first main pump proportional electromagnetic valve and the second main pump proportional electromagnetic valve are respectively connected with a first main pump and a second main pump; and the confluence proportional solenoid valve is connected with the first main pump and the second main pump.
Furthermore, the input end of the main controller is also connected with the output end of a rotary pilot pressure sensor, and the rotary pilot pressure sensor is arranged in the rotary pilot loop.
Furthermore, the input end of the engine controller is connected with the output end of a rotating speed sensor, and the rotating speed sensor is arranged on the lower edge of an engine flywheel.
Furthermore, the main controller is also connected with a movable arm sensor and a bucket rod sensor.
Furthermore, the crushing oil inlet pressure sensor, the rotary pilot pressure sensor and the crushing pilot pressure sensor adopt voltage sensors and output 0.5-4.5V voltage signals.
Furthermore, the first main pump pressure sensor and the second main pump pressure sensor adopt voltage type sensors and output voltage signals of 0.5-4.5V.
Furthermore, the crushing oil inlet pressure sensor, the rotary pilot pressure sensor and the crushing pilot pressure sensor adopt current sensors and output 4-20mA current signals.
Furthermore, the first main pump pressure sensor and the second main pump pressure sensor adopt current type sensors and output current signals of 4-20 mA.
Furthermore, the types of chips adopted by the main controller comprise FPGA and DSP.
An excavator comprises the excavator crushing working condition energy-saving control system.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses when broken operating mode, through increase broken oil feed pressure sensor in broken oil feed return circuit, guarantee the master controller when the main pump supplies oil to the quartering hammer, detect the oil feed pressure of main pump pressure and quartering hammer end in real time, the master controller passes through engine controller control engine and falls the rotational speed to the rotational speed of rationally hammering, and then the electric current of adjustment main pump output satisfies hydraulic system and gives the flow of quartering hammer, reaches the purpose that reduces oil consumption and guarantee quartering hammer flow supply.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic structural diagram of a control system according to an embodiment of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and specific embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
The first embodiment is as follows:
following enumerate the utility model discloses a preferred embodiment, a broken operating mode fuel-economizing control system of excavator, including the master controller, its characterized in that:
the input end of the main controller is connected with the output end of a crushing oil inlet pressure sensor, and the crushing oil inlet pressure sensor is arranged in a crushing oil inlet loop; the input end of the main controller is connected with the output end of a crushing pilot pressure sensor, and the crushing pilot pressure sensor is arranged in a crushing pilot loop;
the main controller is connected with an electromagnetic valve group and an engine controller, the electromagnetic valve group comprises a first main pump proportional electromagnetic valve, a second main pump proportional electromagnetic valve and a confluence proportional electromagnetic valve, and the first main pump proportional electromagnetic valve and the second main pump proportional electromagnetic valve are respectively connected with a first main pump and a second main pump; and the confluence proportional solenoid valve is connected with the first main pump and the second main pump.
The input end of the main controller is also connected with the output end of a rotary pilot pressure sensor, and the rotary pilot pressure sensor is arranged in a rotary pilot loop.
The input end of the engine controller is connected with the output end of the rotating speed sensor, and the rotating speed sensor is arranged on the lower edge of the engine flywheel.
The crushing oil inlet pressure sensor, the rotary pilot pressure sensor, the crushing pilot pressure sensor, the first main pump pressure sensor and the second main pump pressure sensor adopt voltage type sensors and output voltage signals of 0.5-4.5V.
The chip type adopted by the main controller comprises an FPGA chip.
Example two:
this embodiment provides an excavator, adopts the utility model provides a broken operating mode oil-saving control system of excavator, for convenient understanding, it is following right excavation and the operation process of oil-saving control system carries out detailed description under broken mode:
when the customer selects broken mode, when the gear also sets for high gear, current excavator all realizes the rotational speed torque control to hydraulic system main pump and engine based on current high gear, and the utility model discloses the control strategy who takes does, and the master controller detects the guide's pressure signal of broken guide's pressure sensor and other actions, when detecting only quartering hammer guide's pressure sensor has the signal, the signal transmission to the instrument display that the master controller will gather to carry out information interaction with engine control ware after the signal processing, fall the rotational speed to reasonable rotational speed of hammering through engine control ware control engine, the power under this rotational speed is a little higher than the required maximum power of quartering hammer, the following exemplifies:
if a certain breaking hammer needs to be operated in a dynamic pressure range of 22-25MPa, the dynamic flow needs to be 250-280L/min, the required maximum power is only 116.7KW, the engine power is 250KW/2000rpm, the 7-gear corresponds to 230KW/1700rpm, and the 2-gear corresponds to 180KW/1300rpm, through the data, the engine power is obviously much higher than the maximum power absorbed by the breaking hammer when the 2-gear is obtained, factors such as heat dissipation power, volumetric efficiency and mechanical efficiency are removed, and the 2-gear can sufficiently meet the power requirement of the breaking hammer.
For the existing excavator, the common gear is a 7-gear, the corresponding engine power is 230KW/1700rpm, when only a breaking hammer pilot pressure sensor has a signal, the main controller sends information to the engine controller to adjust the engine rotating speed to 2 gears, the main pump output current is adjusted to meet the requirement that a hydraulic system provides enough flow for a breaking hammer by detecting the pressure of the main pump and the oil inlet pressure of the breaking hammer end, and when the main pump mainly responsible cannot meet the flow requirement of the breaking hammer, the first main pump and the second main pump are utilized by controlling the confluence proportion electromagnetic valve, so that the flow requirement of the breaking hammer is met.
When other actions (such as actions of a bucket rod and other components) and a breaking hammer pilot pressure signal coexist, the gear is automatically restored to the current gear, and the flow of the breaking hammer end is ensured (2 main pumps of the excavator are preferably ensured, and the pump mainly used for the breaking hammer end is preferably ensured).
When the pilot pressure of the breaking hammer is not a signal, other actions are detected, the current gear is automatically recovered, and when the combination of the two actions of the movable arm sensor 1 (responsible for the lifting of the movable arm) and the bucket rod sensor 1 (responsible for the digging of the bucket rod) and other actions is detected, the power is automatically increased (for example, 100rpm is increased) on the basis of the current gear (7 gears), so that the working efficiency of the whole machine is ensured.
In summary, the scheme can be summarized as: the energy-saving device realizes the energy saving of the whole operation cycle by independently hammering and reducing the speed (the time spent is longer), recovering the current rotating speed in general combined operation and increasing the speed (the time spent is shorter) in repeated cooperation, and realizes the energy saving of a crushing mode by combining the functions of recovering the idle state in a few seconds and reducing the main pump to the minimum discharge capacity at the same time when no action exists.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. The utility model provides an excavator broken operating mode fuel-economizing control system, includes the master controller, its characterized in that:
the input end of the main controller is connected with the output end of a crushing oil inlet pressure sensor, and the crushing oil inlet pressure sensor is arranged in a crushing oil inlet loop; the input end of the main controller is connected with the output end of a crushing pilot pressure sensor, and the crushing pilot pressure sensor is arranged in a crushing pilot loop;
the main controller is also connected with an electromagnetic valve group and an engine controller, the electromagnetic valve group comprises a first main pump proportional electromagnetic valve, a second main pump proportional electromagnetic valve and a confluence proportional electromagnetic valve, and the first main pump proportional electromagnetic valve and the second main pump proportional electromagnetic valve are respectively connected with a first main pump and a second main pump; and the confluence proportional solenoid valve is connected with the first main pump and the second main pump.
2. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the input end of the main controller is further connected with the output end of a rotation pilot pressure sensor, and the rotation pilot pressure sensor is arranged in a rotation pilot loop.
3. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the input end of the engine controller is connected with the output end of a rotation speed sensor, and the rotation speed sensor is arranged on the lower edge of an engine flywheel.
4. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the main controller is further connected with a movable arm sensor and an arm sensor.
5. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the crushing oil inlet pressure sensor, the gyration pilot pressure sensor and the crushing pilot pressure sensor adopt voltage type sensors and output voltage signals of 0.5-4.5V.
6. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the first main pump pressure sensor and the second main pump pressure sensor adopt voltage type sensors and output voltage signals of 0.5-4.5V.
7. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the crushing oil inlet pressure sensor, the gyration pilot pressure sensor and the crushing pilot pressure sensor adopt current type sensors and output current signals of 4-20 mA.
8. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the first main pump pressure sensor and the second main pump pressure sensor adopt current type sensors and output current signals of 4-20 mA.
9. The oil-saving control system for the crushing working condition of the excavator as claimed in claim 1, wherein the types of chips adopted by the main controller comprise FPGA and DSP.
10. An excavator, characterized in that the excavator adopts the oil-saving control system for the crushing working condition of the excavator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508328.5U CN212001364U (en) | 2020-04-09 | 2020-04-09 | Oil-saving control system for crushing working condition of excavator and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508328.5U CN212001364U (en) | 2020-04-09 | 2020-04-09 | Oil-saving control system for crushing working condition of excavator and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212001364U true CN212001364U (en) | 2020-11-24 |
Family
ID=73405087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020508328.5U Active CN212001364U (en) | 2020-04-09 | 2020-04-09 | Oil-saving control system for crushing working condition of excavator and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212001364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384957A (en) * | 2022-01-17 | 2022-04-22 | 雷沃工程机械集团有限公司 | Intelligent control system and method for crushing working condition of excavator |
-
2020
- 2020-04-09 CN CN202020508328.5U patent/CN212001364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114384957A (en) * | 2022-01-17 | 2022-04-22 | 雷沃工程机械集团有限公司 | Intelligent control system and method for crushing working condition of excavator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2892805Y (en) | Motor rotational speed memory hoisting braker control device | |
| WO2013185444A1 (en) | Energy-saving speed increasing control system and method for excavator | |
| CN204755430U (en) | Broken host computer actuating system | |
| CN102635137A (en) | Total power control system of mechanical equipment | |
| CN108644166B (en) | Electromagnetic hydraulic valve | |
| CN212001364U (en) | Oil-saving control system for crushing working condition of excavator and excavator | |
| CN103851040A (en) | Energy regeneration system of excavator and excavator | |
| CN202251264U (en) | Potential energy recycling device for hydraulic excavator | |
| CN106468137A (en) | A kind of control system improving rotary digging drill power head operating rate and method | |
| CN212026406U (en) | Automatic control system for crushing working condition of excavator and excavator | |
| CN110607819B (en) | Power machine smoke intensity control method and device and power machine | |
| CN206290504U (en) | A kind of large-scale steel grasping machine hydraulic gyration energy conserving system | |
| CN102606321B (en) | Controller, system and method for gear adjustment of rotary drilling rig and rotary drilling rig | |
| CN203702159U (en) | Shield tunneling machine and cutter disc driving system thereof | |
| CN202467634U (en) | Electro-hydraulic control device capable of automatically regulating rotating speed of power head | |
| CN108999237B (en) | Intelligent control system and control method for hydraulic excavator | |
| CN102425401A (en) | Electro-hydraulic logic control loop of rock drilling actions of hydraulic rock drilling machine | |
| CN112594240B (en) | Hydraulic system of working device, control method and electric loader | |
| CN108953309A (en) | A kind of energy recovery and reuse hydraulic system | |
| CN204590151U (en) | The new-type movable arm potential energy recovery system of ultra-large type hydraulic crawler excavator | |
| CN114722568B (en) | Energy-saving method of hydraulic excavator based on power system power matching and hydraulic system flow matching | |
| CN211849707U (en) | Energy-saving hydraulic transmission system of excavator | |
| CN203702700U (en) | Rotary drilling rig and main hoist hydraulic system thereof | |
| CN206872292U (en) | Multi-functional crawler crane multimode cooperative control system | |
| CN111577717A (en) | Overflow loss recovery system based on hydraulic motor and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.75, Huanghe East Road, Huangdao District, Qingdao City, Shandong Province 266599 Patentee after: Lovol Heavy Industry Group Co.,Ltd. Address before: No.75, Huanghe East Road, Huangdao District, Qingdao City, Shandong Province 266599 Patentee before: LOVOL Engineering Machinery Group Co.,Ltd. |