CN201203362Y - Heat radiation system of earth leveler capable of regulating speed - Google Patents
Heat radiation system of earth leveler capable of regulating speed Download PDFInfo
- Publication number
- CN201203362Y CN201203362Y CN 200820300307 CN200820300307U CN201203362Y CN 201203362 Y CN201203362 Y CN 201203362Y CN 200820300307 CN200820300307 CN 200820300307 CN 200820300307 U CN200820300307 U CN 200820300307U CN 201203362 Y CN201203362 Y CN 201203362Y
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- China
- Prior art keywords
- fan
- electromagnetic valve
- heat dissipation
- proportional electromagnetic
- hydraulic motor
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Disclosed is a speed-adjustable heat dissipation system of a blade grader, which is characterized in that the dissipation system includes a fan, a fan hydraulic motor controlling the fan, and a heat dissipation device. The fan hydraulic motor is connected with the proportional electromagnetic valve and is controlled by the proportional electromagnetic valve, the current of the proportional electromagnetic valve is controlled by a multi-range fan controlling button with at lease two ranges. The heat dissipation system has the advantages that the proportional electromagnetic valve is controlled by the multi-range fan controlling button and is provided with different currents, thereby obtaining different overflow pressures, realizing different fan speeds, and being adaptable for different working requirement of the blade grader. Meanwhile, because the proportional electromagnetic valve has the function of providing maximum pressure while loss of power, the situation that the power-off of the proportional electromagnetic valve caused by electrical apparatus makes the loss of heat dissipation function of the fan and the blade grader working abnormally is effectively guaranteed not to appear; the fan is installed at the position where the air inlet towards the heat dissipation device, the arrangement is more reasonable and the effect of heat dissipation is better.
Description
Technical field
The utility model relates to engineering machinery cooling system technical field, especially a kind of land leveller adjustable speed cooling system.
Background technology
At present, the radiating mode that is used on the land leveller has: 1, adopt overflow valve in parallel to limit the maximum speed of fan motor, rotation speed of the fan and engine are synchronous; 2, fan directly is connected in the fan radiating mode of engine by deceleration device; 3, wait the radiating mode of realizing automatic speed regulation control by expensive sensor.Preceding dual mode can not carry out speed governing to radiator fan according to actual needs, and is all undesirable at aspects such as adaptation condition and energy-saving and noise-reducings.Be unfavorable for common installation needs and the 3rd kind price is too expensive.
Summary of the invention
The purpose of this utility model just provides that the arrangements for speed regulation of multistage adjustable, the radiator fan of a kind of speed that can make radiator fan can dead electricity be protected automatically, fan motor is anti-inhales empty and can effective energy-conservation reduction noise, the land leveller adjustable speed cooling system that cost is low.
Solution of the present utility model is such: the fan hydraulic motor and the heat abstractor that include fan, control fan, described fan hydraulic motor is connected with proportion magnetic valve, by this proportional solenoid valve control, the electric current of described proportion magnetic valve has two grades many grades of fan control button controls at least by one.
In such scheme, between described proportion magnetic valve and fan hydraulic motor, can be connected with check valve; The air inlet of described fan can be towards described heat abstractor; The mobile wind direction of arranging according to wind of the radiator of the heat abstractor of stating can be followed successively by hydraulic oil radiator, water radiator and torque-converters oil radiator.
The utility model has the advantages that: 1, proportion magnetic valve is controlled to be it by many grades fan control button different electric currents is provided, thereby makes the fan hydraulic motor obtain different oil pressure reliefs, realizes different fan speeds, adapts to the different operating mode needs of land leveller.Simultaneously because proportion magnetic valve has the function that dead electricity provides maximum pressure, can effectively guarantee not cause the forfeiture of fan heat sinking function because of the electrical equipment reason causes the proportion magnetic valve outage, the situation that land leveller can't operate as normal occurs.2, between proportion magnetic valve and fan hydraulic motor, be connected with check valve; can prevent that the fan hydraulic motor is in running up; because of reasons such as engine shutdowns; lose the power that pump provides in short time; and the suction sky that under effect of inertia, produces, thereby effectively prolonged service life of motor.3, fan is pressed air inlet towards the installation of the position of heat abstractor, and it is more reasonable to arrange, radiating effect is better.4, include the torque-converters oil radiator in the radiator of heat abstractor, can show by the oil temperature of torque-converters oil radiator, the prompting operation hand is changed different fan control button gears and is adjusted radiating effect timely, satisfies different needs of work, to greatest extent energy-saving and noise-reducing.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is circuit controling drawings of proportion magnetic valve of the present utility model and fan control button.
Accompanying drawing 3 is structural representations of the utility model heat abstractor.
Accompanying drawing 4 is structural representations of the utility model fan.
The specific embodiment
Present embodiment includes proportion magnetic valve 1, check valve 2, fan hydraulic motor 3, fan 4, heat abstractor 5, pump 6, hydraulic oil container 7, hydraulic oil radiator 8, water radiator 9, torque-converters oil radiator 10, fan knob 11, fan control box 12.
Described fan hydraulic motor 3 is connected with proportion magnetic valve 1, and by this proportion magnetic valve 1 control, the electric current of described proportion magnetic valve 1 has two grades many grades of fan control button controls at least by one.
Between described proportion magnetic valve 1 and fan hydraulic motor 3, be connected with check valve 2.
The air inlet of described fan 4 is towards described heat abstractor 5.
The mobile wind direction of arranging according to wind of the radiator of described heat abstractor 5 is followed successively by hydraulic oil radiator 8, water radiator 9 and torque-converters oil radiator 10.
In Fig. 1, Fig. 2, Fig. 3, embodiment shown in Figure 4, fan hydraulic motor 3 of the present utility model is connected with proportion magnetic valve 1, and the electric current of this proportion magnetic valve 1 has 5 grades many grades of fan knobs 11 controls by one.Between proportion magnetic valve 1 and fan hydraulic motor 3, also be connected with check valve 2.Fan hydraulic motor 3 is connected with fan 4, and the air inlet of fan 4 is towards heat abstractor.The mobile wind direction of arranging according to wind of the radiator of this heat abstractor is followed successively by hydraulic oil radiator 8, water radiator 9 and torque-converters oil radiator 10.When work, according to the operating mode needs, set a gear for many grades of fan knobs 11, by the certain electric current of its control ratio magnetic valve 1 output, 1 of proportion magnetic valve gives fan hydraulic motor 3 certain inlet pressure, control fan 4 rotates by the speed of setting, and fan 4 begins air draught towards the air inlet of heat abstractor 5 land leveller is dispelled the heat.Operator can show that the rotary fan knob is changed different fan control gears and adjusted radiating effect timely, satisfies different needs of work, to greatest extent energy-saving and noise-reducing by the oil temperature of observing the torque-converters oil radiator.
Claims (4)
- [claim 1] a kind of land leveller adjustable speed cooling system, include the fan hydraulic motor (3) and the heat abstractor (5) of fan (4), control fan (4), it is characterized in that: described fan hydraulic motor (3) is connected with proportion magnetic valve (1), by this proportion magnetic valve (1) control, the electric current of described proportion magnetic valve (1) has two grades many grades of fan control button controls at least by one.
- [claim 2] land leveller adjustable speed according to claim 1 cooling system is characterized in that: be connected with check valve (2) between described proportion magnetic valve (1) and fan hydraulic motor (3).
- [claim 3] land leveller adjustable speed according to claim 1 cooling system is characterized in that: the air inlet of described fan (4) is towards described heat abstractor (5).
- [claim 4] is according to claim 1 or 3 described land leveller adjustable speed cooling systems, it is characterized in that: the mobile wind direction of arranging according to wind of the radiator of described heat abstractor (5) is followed successively by hydraulic oil radiator (8), water radiator (9) and torque-converters oil radiator (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820300307 CN201203362Y (en) | 2008-03-05 | 2008-03-05 | Heat radiation system of earth leveler capable of regulating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820300307 CN201203362Y (en) | 2008-03-05 | 2008-03-05 | Heat radiation system of earth leveler capable of regulating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201203362Y true CN201203362Y (en) | 2009-03-04 |
Family
ID=40425674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820300307 Expired - Lifetime CN201203362Y (en) | 2008-03-05 | 2008-03-05 | Heat radiation system of earth leveler capable of regulating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201203362Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043523A (en) * | 2018-01-17 | 2019-07-23 | 雷沃重工股份有限公司 | Prevent that being emptied hydraulic system and hydraulic system prevents being emptied method |
-
2008
- 2008-03-05 CN CN 200820300307 patent/CN201203362Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043523A (en) * | 2018-01-17 | 2019-07-23 | 雷沃重工股份有限公司 | Prevent that being emptied hydraulic system and hydraulic system prevents being emptied method |
| CN110043523B (en) * | 2018-01-17 | 2022-01-21 | 潍柴雷沃重工股份有限公司 | Air suction prevention hydraulic system and air suction prevention method for hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |