CN201778355U - Rotation speed control system of excavator - Google Patents
Rotation speed control system of excavator Download PDFInfo
- Publication number
- CN201778355U CN201778355U CN2010205082768U CN201020508276U CN201778355U CN 201778355 U CN201778355 U CN 201778355U CN 2010205082768 U CN2010205082768 U CN 2010205082768U CN 201020508276 U CN201020508276 U CN 201020508276U CN 201778355 U CN201778355 U CN 201778355U
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- sensor
- excavator
- control system
- speed control
- pressure sensor
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Abstract
The utility model discloses a rotation speed control system of an excavator, which is characterized in that the pressure sensor of a pump I, the pressure sensor of a pump II, a pilot pressure sensor, a coolant temperature sensor, a Hall rotation speed sensor, a boom angle sensor, an arm angle sensor and a bucket angle sensor are all connected with the input end of a central control unit; and both a control end of an accelerator servo motor and a sound and light alarm are connected with the output end of the central control unit. By adopting the rotation speed control system, the operating efficiency of the excavator can be improved, and energy consumption can be reduced.
Description
Technical field
The utility model belongs to the engineering machinery control technology field, relates to a kind of excavator revolution speed control system.
Technical background
Excavator is a kind of engineering machinery that is widely used in cubic metre of earth and stone construction, construction maneuverability, efficient height, but the problem that exists in the excavator work progress also can not be ignored, the excavator working environment is complicated and changeable, capacity usage ratio is low, the oil consumption height, the labour intensity of operation excavator operation is big, the adjusting difficulty of digger engine rotating speed is big, contradiction between the operating efficiency of engine consumption and excavator needs to solve, and the intelligent degree that therefore improves the control of digger engine rotating speed is the ideal scheme that addresses the above problem.
The utility model content
Technical problem to be solved in the utility model is to propose a kind of excavator revolution speed control system, to improve the operating efficiency of excavator, cuts down the consumption of energy.
Technical solution of the present utility model is as follows:
A kind of excavator revolution speed control system, hydraulic pump pressure sensor, pilot pressure sensor, cooling-water temperature transmitter, Hall speed probe, boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor all link to each other with the input of central controller, and the control end of throttle servomotor all links to each other with the output of central controller with audible-visual annunciator.
Boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor all link to each other with the input of central controller by fieldbus.
Described boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor are installed in respectively on swing arm, dipper and the scraper bowl of excavator.
Described hydraulic pump pressure sensor comprises pump one pressure sensor and pump two pressure sensors.
Beneficial effect:
The utility model has adopted a plurality of sensors to be used to detect the current working of excavator, based on the detection signal of these a plurality of sensors, further excavator is implemented control to cut down the consumption of energy, and strengthens the intelligent of system.Specifically, the utlity model has following advantage:
1) utilizes the pilot pressure sensor signal to judge the duty of hydraulic crawler excavator, be in normal operating condition or idling mode with the control engine speed;
2) utilize the hydraulic pump pressure sensor signal to judge the load behavior of hydraulic crawler excavator, with the control engine running in the economic work district or the dynamically working district, energy conservation;
3) utilize boom angle sensor, dipper obliquity sensor, scraper bowl obliquity sensor, pump one pressure sensor, pump two pressure sensors and pilot pressure sensor signal to judge the digger operating device load, realize speedup when realizing that with control equipment hydraulic driving oil cylinder reduction of speed and excavating resistance are big under overflow situation;
Reduction of speed protection control when warming-up control and coolant temperature are higher than 102 ℃ when 4) utilizing ECT signal realization ECT to be lower than 20 ℃.
In sum, the utility model is a kind of hydraulic crawler excavator revolution speed control system, can adjust engine speed automatically, reduces manipulation strength, reduces oil consumption, improves operating efficiency.
Description of drawings
Fig. 1 is the mounting structure figure of obliquity sensor in the utility model.
Fig. 2 is the utility model revolution speed control system structured flowchart.
Fig. 3 is the utility model control system control flow chart.
The specific embodiment
Below with reference to figure and specific implementation process the utility model is described in further details:
Embodiment 1:
Referring to Fig. 1, boom angle sensor 2 is installed on the equipment swing arm 1 of excavator, dipper obliquity sensor 4 is installed on the dipper 3, scraper bowl obliquity sensor 6 is installed on the scraper bowl 5.During excavator work, the signal of boom angle sensor 2, dipper obliquity sensor 4, scraper bowl obliquity sensor 6 is transferred to central controller by communication module.
Pressure, temperature and rotary speed information during the utility model display device work in real time, realize redundancy detection to a certain extent, can also realize monitoring, demonstration and warning, comprise: the monitoring of pump one outlet pressure, pump two outlet pressures, pilot pressure, coolant temperature and engine speed etc. system's major parameter and critical element; The warning of coolant temperature height, pressure sensor, obliquity sensor etc.Simultaneously, the numerical value of each port of central controller so that when machine breaks down, can find abort situation fast when monitoring system can show excavator work in real time.Monitoring system is the vehicle-mounted monitoring device of excavator, is a display control terminal, and monitoring system and central controller are by the CAN bus communication.
Referring to Fig. 2, Fig. 2 is the structured flowchart of the utility model engine speed control, and pump one pressure sensor, pump two pressure sensors, pilot pressure sensor all link to each other with the input of central controller with wave filter by photoelectric isolating circuit.Boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor all link to each other with the input of central controller by fieldbus.
Referring to Fig. 3, Fig. 3 is the utility model engine revolution speed control system flow chart.The equipment of excavator is handled as the multiple degrees of freedom mechanical hand, utilize boom angle sensor 2, dipper obliquity sensor 4, scraper bowl obliquity sensor 6 to determine the position of equipment, the signal of three obliquity sensors is transferred to the central controller of excavator by fieldbus, utilize the constraints of calculating good equipment driving oil cylinder in advance, the attitude of equipment is judged.Pump one outlet pressure, pump two outlet pressures, pilot pressure, coolant temperature and engine rotational speed signal are through photoelectric isolating circuit and wave filter input central controller; central controller is by calculating; output low temperature warming-up, high temperature protection, attonity idling, overflow reduction of speed or excavation speedup control signal are controlled the throttle servomotor, realize engine speed control.Do among Fig. 3 is the abbreviation of digital output, the output of expression digital quantity.
Claims (4)
1. excavator revolution speed control system, it is characterized in that, hydraulic pump pressure sensor, pilot pressure sensor, cooling-water temperature transmitter, Hall speed probe, boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor all link to each other with the input of central controller, and the control end of throttle servomotor all links to each other with the output of central controller with audible-visual annunciator.
2. excavator revolution speed control system according to claim 1 is characterized in that, boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor all link to each other with the input of central controller by fieldbus.
3. excavator revolution speed control system according to claim 1 and 2 is characterized in that, described boom angle sensor, dipper obliquity sensor and scraper bowl obliquity sensor are installed in respectively on swing arm, dipper and the scraper bowl of excavator.
4. excavator revolution speed control system according to claim 1 and 2 is characterized in that, described hydraulic pump pressure sensor comprises pump one pressure sensor and pump two pressure sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205082768U CN201778355U (en) | 2010-08-27 | 2010-08-27 | Rotation speed control system of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205082768U CN201778355U (en) | 2010-08-27 | 2010-08-27 | Rotation speed control system of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778355U true CN201778355U (en) | 2011-03-30 |
Family
ID=43791569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205082768U Expired - Fee Related CN201778355U (en) | 2010-08-27 | 2010-08-27 | Rotation speed control system of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778355U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677714A (en) * | 2012-06-11 | 2012-09-19 | 上海三一重机有限公司 | Rotational speed control device and method for excavator and excavator with rotational speed control device |
| CN102767204A (en) * | 2012-07-27 | 2012-11-07 | 中联重科股份有限公司渭南分公司 | Warming-up control equipment, warming-up control system, warming-up control method, and engineering mechanical equipment |
| CN104111179A (en) * | 2014-07-15 | 2014-10-22 | 贵阳永青仪电科技有限公司 | Excavating efficiency detecting device and method for excavator |
| CN104395535A (en) * | 2012-06-04 | 2015-03-04 | 日立建机株式会社 | Work vehicle |
-
2010
- 2010-08-27 CN CN2010205082768U patent/CN201778355U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104395535A (en) * | 2012-06-04 | 2015-03-04 | 日立建机株式会社 | Work vehicle |
| CN104395535B (en) * | 2012-06-04 | 2017-09-08 | 株式会社Kcm | Working truck |
| CN102677714A (en) * | 2012-06-11 | 2012-09-19 | 上海三一重机有限公司 | Rotational speed control device and method for excavator and excavator with rotational speed control device |
| CN102767204A (en) * | 2012-07-27 | 2012-11-07 | 中联重科股份有限公司渭南分公司 | Warming-up control equipment, warming-up control system, warming-up control method, and engineering mechanical equipment |
| CN104111179A (en) * | 2014-07-15 | 2014-10-22 | 贵阳永青仪电科技有限公司 | Excavating efficiency detecting device and method for excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |