CN202866971U - Motor heat control system of milling machine - Google Patents
Motor heat control system of milling machine Download PDFInfo
- Publication number
- CN202866971U CN202866971U CN 201220513894 CN201220513894U CN202866971U CN 202866971 U CN202866971 U CN 202866971U CN 201220513894 CN201220513894 CN 201220513894 CN 201220513894 U CN201220513894 U CN 201220513894U CN 202866971 U CN202866971 U CN 202866971U
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- motor
- milling machine
- temperature
- temperature sensor
- control system
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- Expired - Fee Related
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Abstract
The utility model discloses a motor heat control system of a milling machine. The motor heat control system of the milling machine comprises a microcontroller which is connected with a coolant temperature sensor, an air inlet temperature sensor and a hydraulic oil temperature sensor through a signal line, wherein the coolant temperature sensor is arranged in motor coolant, the air inlet temperature sensor is arranged on a motor air inlet, and the hydraulic oil temperature sensor is arranged in motor hydraulic oil. The microcontroller is further connected with an electric proportional throttle valve through the signal line. The motor heat control system of the milling machine has the advantages that temperature of a motor system is monitored by the temperature sensors in real time, a set temperature value is fed back to a controller, and then the controller compares the set temperature with the actual temperature, fan electric proportion electromagnetic throttle valve is controlled, and thereby a fan motor is adjusted, fan rotate speed is changed, motor heat balance of the milling machine is finally achieved, heat efficiency of the motor and a hydraulic system of the milling machine is effectively improved, fuel consumption is reduced, and the best working condition of the system is achieved.
Description
Technical field
The utility model belongs to the pavement maintenance machinery equipment technical field, especially relates to a kind of engine thermal control system of milling machine.
Background technique
Milling machine is to change the special device of building for maintenance of surface and road surface, its working principle is continuous the rotatablely moving the ground surface material excision of certain depth of equipment, continuous walking by the equipment traveller is so that working angles can be along continuous the carrying out of direction of travel, and by feeder waste material constantly is transported on the dust car, thereby realize the work purpose of the continuous cutting of road pavement.Engine thermal control is the principal element that affects milling machine complete machine power system.
The at present milling machine engine thermal of domestic and international most of models control mainly contains two kinds, and the one, motor self drives radiation fan, and rotation speed of the fan is determined by engine speed.The 2nd, drive fan by oil hydraulic motor, the driven by engine oil hydraulic pump drives oil hydraulic motor by pump, and motor rotary speed is finally still determined by engine speed.Dual mode all fails on temperature heat to be controlled, and causes the engine system heat utilization efficiency low, and fuel consume is large.
The model utility content
The utility model has overcome shortcoming of the prior art, a kind of engine thermal control system of milling machine is provided, by temperature transducer engine water temperature, hydraulic oil temperature and air temperature are monitored, compare by temperature transducer reading out data and setting value again, by microcontroller fan electricity proportional throttle valve is controlled, thereby the change radiating fan rotation speed makes system reach thermal equilibrium.
The technical solution of the utility model is: a kind of engine thermal control system of milling machine, comprise microcontroller, described microcontroller by signaling line respectively be arranged on engine coolant in cooling-water temperature transmitter, be arranged on the air inlet thermistor at engine intake place and be connected with hydraulic fluid temperature sensor in being connected the engine liquid force feed; Described microcontroller also is connected with electric proportional throttle valve by signaling line.
Compared with prior art, the utility model has the advantages that: by temperature transducer engine system temperatures is carried out Real-Time Monitoring, set temperature value feeds back to controller, again by controller contrast setting temperature and true temperature, fan electricity ratio electromagnetic throttle valve is controlled, thereby adjusting fan motor, change rotation speed of the fan, the final milling machine Engine Heat Balance that realizes, energy Effective Raise milling machine motor and the hydraulic system thermal efficiency, reduce fuel oil consumption make system reach optimum Working.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is hydraulic schematic diagram of the present utility model;
Fig. 2 is electrical schematic diagram of the present utility model.
Embodiment
A kind of engine thermal control system of milling machine, as shown in Figure 1, hydraulic element comprise: pump 1, relief valve 2, filter 3, electric proportional throttle valve 4 and pressure reduction sensitive valve 5 etc.To electric proportional throttle valve 4, electric proportional throttle valve outlet is connected to motor 6 to the hydraulic oil that pump 1 is exported under engine-driving, drives radiation fan by motor through filter 3.Relief valve 2 is arranged before the filter 3, system is shielded.When electric proportional throttle valve 4 inlet outlet pressure differentials set pressure greater than pressure reduction sensitive valve 5, fluid reduced the pressure loss through pressure reduction sensitive valve 5 oil sump tanks.The rotating speed of fan is regulated the size of electric proportional throttle valve 4 input currents by electrical control.
As shown in Figure 2, the electrical control components and parts comprise: microcontroller, cooling-water temperature transmitter, air inlet thermistor, hydraulic fluid temperature sensor, display device etc., wherein: the suction port place that cooling-water temperature transmitter is arranged in the cooling liquid of motor, air inlet thermistor is arranged on motor, hydraulic fluid temperature sensor setting are in the hydraulic oil of motor, three sensors are connected with microcontroller by signaling line respectively, and microcontroller also is connected with electric proportional throttle valve by signaling line.Described microcontroller also links to each other with alarm indicator lamp respectively, and links to each other with display device by the CAN bus, and when alarm indicator lamp was bright, display device can show corresponding alarm condition.
Working principle of the present utility model is: during milling machine work, by the driven by engine oil hydraulic pump, to fan motor, drive fan is rotated through electric proportional throttle valve.Detect engine coolant temperature, hydraulic oil temperature, engine intake temperature etc. through temperature transducer, after data and setting temperature compared, send electrical signal, immediately the electric proportional throttle valve control electric current of fan is regulated by microcontroller, change its control size of current, regulate the fan motor input flow rate, thereby reach the adjusting rotation speed of the fan, make system reach thermal equilibrium.
The utility model is provided with respectively minimum control temperature, maximum control temperature (i.e. three temperature controlling range) for three temperature of hydraulic fluid temperature of engine coolant temperature, engine intake temperature, hydraulic system, simultaneously for each temperature an alarm temperature is set all, this equitemperature all can be set controller by commissioning device, and minimum, the maximum controlling current of electric proportional throttle valve also can be set simultaneously.In three different temperature controlling range, three temperature are controlled by being up to minimum electric proportional throttle valve electric current respectively, are normally open solenoid valves because electric proportional throttle valve adopts, so rotation speed of the fan is by moving fastest to slow-speed.Because the maximum temperature that any temperature all can not surpass be set, so for the control electric current of fan control Proportional valve, adopt the minimum value of three's electric current that electric proportional throttle valve is controlled.When any one temperature transducer fault, all with the minimum electric current of setting of proportional electromagnetic valve solenoid valve is controlled (namely with maximum (top) speed motor being dispelled the heat), microcontroller has corresponding alarm point output simultaneously.
For the protection to fan system, engine cooling fan is provided with minimum speed, and namely the open state radiation fan can not stall.
Claims (2)
1. the engine thermal control system of a milling machine, it is characterized in that: comprise microcontroller, described microcontroller by signaling line respectively be arranged on engine coolant in cooling-water temperature transmitter, be arranged on the air inlet thermistor at engine intake place and be connected with hydraulic fluid temperature sensor in being connected the engine liquid force feed; Described microcontroller also is connected with electric proportional throttle valve by signaling line; Described microcontroller also links to each other with display device by the CAN bus.
2. the engine thermal control system of milling machine according to claim 1, it is characterized in that: described microcontroller also links to each other with alarm indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513894 CN202866971U (en) | 2012-10-09 | 2012-10-09 | Motor heat control system of milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513894 CN202866971U (en) | 2012-10-09 | 2012-10-09 | Motor heat control system of milling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866971U true CN202866971U (en) | 2013-04-10 |
Family
ID=48033695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513894 Expired - Fee Related CN202866971U (en) | 2012-10-09 | 2012-10-09 | Motor heat control system of milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866971U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900508A (en) * | 2012-10-09 | 2013-01-30 | 成都市新筑路桥机械股份有限公司 | Heat control system and heat control method of engine of milling machine |
| CN104481695A (en) * | 2014-12-04 | 2015-04-01 | 洛阳市黄河软轴控制器股份有限公司 | Electronic fan LCD (liquid crystal display) display system |
| CN107061424A (en) * | 2017-03-24 | 2017-08-18 | 中联重机股份有限公司 | A kind of cropper automatic oil liquid cooling system and control method |
-
2012
- 2012-10-09 CN CN 201220513894 patent/CN202866971U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900508A (en) * | 2012-10-09 | 2013-01-30 | 成都市新筑路桥机械股份有限公司 | Heat control system and heat control method of engine of milling machine |
| CN104481695A (en) * | 2014-12-04 | 2015-04-01 | 洛阳市黄河软轴控制器股份有限公司 | Electronic fan LCD (liquid crystal display) display system |
| CN107061424A (en) * | 2017-03-24 | 2017-08-18 | 中联重机股份有限公司 | A kind of cropper automatic oil liquid cooling system and control method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20181009 |