CN101804782B - Novel hydraulic system of drive axle cooling system - Google Patents
Novel hydraulic system of drive axle cooling system Download PDFInfo
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- CN101804782B CN101804782B CN201010131372XA CN201010131372A CN101804782B CN 101804782 B CN101804782 B CN 101804782B CN 201010131372X A CN201010131372X A CN 201010131372XA CN 201010131372 A CN201010131372 A CN 201010131372A CN 101804782 B CN101804782 B CN 101804782B
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- hydraulic
- cooling
- drive axle
- axle
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Abstract
The invention discloses a drive axle cooling system, in particular to a hydraulic system of a drive axle cooling system, which is characterized in that the system comprises three sub-systems, i.e. a full-hydraulic brake system, a drive axle cooling hydraulic system and a fan cooling hydraulic system. The system has the benefits that because the fan cooling hydraulic system cools the hydraulic oil in a hydraulic oil tank, the temperature of the hydraulic oil in a cooler which exchanges heat with lubricating oil is relatively lower, the heat exchange rate is high, and the cooling effect of the system is very good. A temperature sensor detects the temperature of the lubricating oil in a drive axle, so as to control the start and the stop of the system without manual operation, and achieve the automatic control effect. Heat is transferred to the hydraulic oil, a cooling device of a hydraulic cooling system cools in a unified way, so as to achieve the cooling effect under the condition of not adding equipment.
Description
Technical field
The present invention relates to the drive axle cooling system, be specifically related to a kind of hydraulic efficiency pressure system of drive axle cooling system.
Background technology
In construction machinery and equipment like the drive axle of loader, road grader, roller etc.; In the working process of machinery, can produce a large amount of heat, part and lubricating oil temperature in the drive axle are constantly raise, lubricating oil is at high temperature apt to deteriorate for a long time; Performance descends, and parts such as gear also damage easily.
On drive axle heat-dissipation problem, people have also found out a lot of ways, but always undesirable, and perhaps radiating effect is not good, or do not have automatically to detect the oil temperature or cause machinery too huge having increased a large amount of equipment.The application number that wherein proposed on March 9th, 2006 is that the utility model " construction machinery and equipment driving heat abstractor " of CN200620033361.7 is that present radiating effect is relatively good, also can detect the device of oil temperature automatically, comprises drive axle; Radiator; Be communicated with oil suction pipe, the oil return pipe of drive axle and radiator, be arranged on oil pump and an end and oil pump bonded assembly transmission shaft on the oil suction pipe, its principal character is that the transmission shaft other end is provided with the magnetic clutch that is mated; This magnetic clutch is connected with engine installation through driving band; Be to utilize temperature sensor to detect the switching that oily temperature is controlled magnetic clutch, make cooling system work, realize heat sinking function.But this system has increased equipment such as radiator, driving band more, has increased the cost of machinery on making.
Summary of the invention
The present invention has overcome the deficiency of prior art, and a kind of novel hydraulic system of drive axle cooling system is provided, and solves the problem that the drive axle cooling system that uses at present can not satisfy radiating effect, automatic guidance simultaneously and not increase equipment.
For solving above-mentioned technical matters, the present invention adopts following technical scheme:
A kind of hydraulic efficiency pressure system of drive axle cooling system is provided, and this system is made up of full power hydraulic brake system, drive axle cooling system and fan radiator liquid pressing system three sub-systems:
Wherein full power hydraulic brake system is formed and is connected successively by hydraulic reservoir, brake pump, prefill valve, driving energy storage, hand brake valve, foot brake valve, service brake switch, drive front axle and driving rear axle; The drive axle cooling system comprises electromagnetic relief valve, drive front axle, driving rear axle, temperature sensor, first filter, cooling vessel, motor-pump assembly and second filter; Fan radiator liquid pressing system is formed and is connected successively by hydraulic reservoir, pump, hydraulic fan assembly, radiator and cooling vessel.
With preset pressure of prefill valve and topping up speed range value, when topping up reached this scope, switching-over was to the electromagnetic relief valve fuel feeding in the drive axle cooling system in the full power hydraulic brake system.
Be arranged on the temperature sensor control electromagnetic relief valve in the drive axle in the drive axle cooling system; Lubricating oil temperature just often in drive axle; Hydraulic oil is directly got back to hydraulic reservoir through electromagnetic relief valve, when lubricating oil in the drive axle surpasses normal temperature, and the electromagnetic valve dead electricity in the electromagnetic relief valve; Hydraulic oil process and the motor that drives in motor-pump assembly return hydraulic reservoir; Motor drives the pump rotation in motor-pump assembly, and the lubricating oil in drive front axle and the driving rear axle is got back in drive front axle and the driving rear axle after the cooling vessel cooling through motor-pump assembly, accomplishes the cooling to lubricating oil;
In the work of drive axle cooling system, fan radiator liquid pressing system is also worked simultaneously, and pump sucks hydraulic oil in the radiator from hydraulic reservoir, after the cooling of hydraulic fan assembly radiating, gets into cooling vessel, accomplishes the cooling to hydraulic oil.
For better reaching the invention effect:
The temperature that described temperature sensor is set is 70 ℃.
Described temperature sensor has one, is used for detecting the temperature of the lubricating oil of drive front axle, and motor-pump assembly has two pumps, respectively the gear lubricant in controlling and driving propons and the driving rear axle.
Compared with prior art, the invention has the beneficial effects as follows:
1. owing to there is fan radiator liquid pressing system that the hydraulic oil in the hydraulic reservoir is cooled off, to carry out the hydraulic fluid temperature of interchange of heat on the low side relatively with lubricating oil in cooling vessel, and effectiveness of regenerator is big, and radiating effect then of the present invention is splendid.
2. the temperature detection of temperature sensor to the lubricating oil in the drive axle arranged, of the present inventionly start working and quit work, do not need manual operation fully, reached the automatic guidance effect thereby control.
With transfer of heat in hydraulic oil, utilize the heat abstractor heat radiation of hydraulic pressure cooling system, unified heat radiation, thereby be issued to the heat-dissipation effect in the situation that does not increase equipment.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further elaboration, in conjunction with schematic diagram shown in Figure 1:
In conjunction with schematic diagram shown in Figure 1, a kind of hydraulic efficiency pressure system of drive axle cooling system, this system is made up of full power hydraulic brake system, drive axle cooling system and fan radiator liquid pressing system three sub-systems:
Wherein full power hydraulic brake system is formed and is connected successively with driving rear axle 12 by hydraulic reservoir 1, brake pump 2, prefill valve 4, driving energy storage 6, hand brake valve 7, foot brake valve 8, service brake switch 9, drive front axle 10; The drive axle cooling system comprises electromagnetic relief valve 5, drive front axle 10, driving rear axle 12, temperature sensor 11, first filter 13, cooling vessel 14, motor-pump assembly 17 and second filter 3; Fan radiator liquid pressing system is formed and is connected successively by hydraulic reservoir 1, pump 18, hydraulic fan assembly 15, radiator 16 and cooling vessel 14.
With prefill valve 4 preset pressure and topping up speed range values, when topping up reached this scope, switching-over was to 5 fuel feeding of the electromagnetic relief valve in the drive axle cooling system in the full power hydraulic brake system.
Be arranged on temperature sensor 11 control electromagnetic relief valves 5 in the drive front axle 10 in the drive axle cooling system; When lubricating oil temperature in the drive axle does not reach 70 ℃; Hydraulic oil is directly got back to hydraulic reservoir 1 through electromagnetic relief valve 5; When lubricating oil temperature in the drive axle surpasses 70 ℃; Electromagnetic valve dead electricity in the electromagnetic relief valve 5, hydraulic oil process and the motor that drives in motor-pump assembly 17 return hydraulic reservoir 1, and motor drives two pumps rotations in motor-pump assembly 17; Two pumps make drive front axle 10 and the lubricating oil in the driving rear axle 12 get back in drive front axle 10 and the driving rear axle 12 after cooling vessel 14 coolings through motor-pump assembly 17 respectively, accomplish the cooling to lubricating oil.
In the work of drive axle cooling system, fan radiator liquid pressing system is also worked simultaneously, and pump 18 sucks hydraulic oil in the radiator 16 from hydraulic reservoir 1, after the 15 heat radiation coolings of hydraulic fan assembly, gets into cooling vessel 14, accomplishes the cooling to hydraulic oil.
Claims (3)
1. the hydraulic efficiency pressure system of a drive axle cooling system, it is characterized in that: this system is made up of full power hydraulic brake system, drive axle cooling system and fan radiator liquid pressing system three sub-systems:
Wherein full power hydraulic brake system is formed and is connected successively with driving rear axle (12) by hydraulic reservoir (1), brake pump (2), prefill valve (4), driving energy storage (6), hand brake valve (7), foot brake valve (8), service brake switch (9), drive front axle (10); The drive axle cooling system comprises electromagnetic relief valve (5), said drive front axle (10), said driving rear axle (12), temperature sensor (11), first filter (13), cooling vessel (14), motor-pump assembly (17) and second filter (3); Fan radiator liquid pressing system is formed and is connected successively by said hydraulic reservoir (1), pump (18), hydraulic fan assembly (15), radiator (16) and said cooling vessel (14);
With preset pressure of prefill valve (4) and topping up speed range value, when topping up reached this scope, switching-over was to the electromagnetic relief valve in the drive axle cooling system (5) fuel feeding in the full power hydraulic brake system;
Be arranged on temperature sensor (11) the control electromagnetic relief valve (5) in the drive axle in the drive axle cooling system; Lubricating oil temperature just often in drive axle; Hydraulic oil is directly got back to hydraulic reservoir (1) through electromagnetic relief valve (5); When lubricating oil in the drive axle surpasses normal temperature; Electromagnetic valve dead electricity in the electromagnetic relief valve (5), hydraulic oil process and the motor that drives in motor-pump assembly (17) return hydraulic reservoir (1), and motor drives the pump rotation in motor-pump assembly (17); Lubricating oil in drive front axle (10) and the driving rear axle (12) is got back in drive front axle (10) and the driving rear axle (12) after cooling vessel (14) cooling through motor-pump assembly (17), accomplished cooling lubricating oil;
In the work of drive axle cooling system; Fan radiator liquid pressing system is also worked simultaneously; Pump (18) sucks hydraulic oil in the radiator (16) from hydraulic reservoir (1), after hydraulic fan assembly (15) heat radiation cooling, get into cooling vessel (14), accomplishes the cooling to hydraulic oil.
2. the hydraulic efficiency pressure system of a kind of drive axle cooling system according to claim 1 is characterized in that: the temperature that described temperature sensor (11) is set is 70 ℃.
3. the hydraulic efficiency pressure system of a kind of drive axle cooling system according to claim 1 and 2; It is characterized in that: described temperature sensor (11) has one; Be used for detecting the temperature of the lubricating oil of drive front axle (10); Motor-pump assembly (17) has two pumps, respectively the gear lubricant in controlling and driving propons (10) and the driving rear axle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010131372XA CN101804782B (en) | 2010-03-24 | 2010-03-24 | Novel hydraulic system of drive axle cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010131372XA CN101804782B (en) | 2010-03-24 | 2010-03-24 | Novel hydraulic system of drive axle cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101804782A CN101804782A (en) | 2010-08-18 |
| CN101804782B true CN101804782B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010131372XA Expired - Fee Related CN101804782B (en) | 2010-03-24 | 2010-03-24 | Novel hydraulic system of drive axle cooling system |
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| CN (1) | CN101804782B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963164A (en) * | 2010-08-30 | 2011-02-02 | 芜湖盛力制动有限责任公司 | Accumulator replenishing valve of full-hydraulic braking system of engineering machinery |
| CN104417383A (en) * | 2013-09-02 | 2015-03-18 | 天津商业大学 | Electric carrier loader |
| CN108657049B (en) * | 2017-03-31 | 2020-11-20 | 比亚迪股份有限公司 | Lifting cooling composite system and vehicle |
| CN111997730B (en) * | 2020-08-28 | 2021-08-24 | 徐州徐工矿业机械有限公司 | Engineering vehicle complete machine thermal management system and articulated dump truck |
| CN114483721A (en) * | 2022-01-14 | 2022-05-13 | 三一海洋重工有限公司 | Cooling system, braking system and engineering machinery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548864Y (en) * | 2002-06-13 | 2003-05-07 | 广西柳工机械股份有限公司 | Driving axle radiator |
| CN2896192Y (en) * | 2006-03-09 | 2007-05-02 | 四川成都成工工程机械股份有限公司 | Engineering machinery driven bridge radiator |
| CN201096113Y (en) * | 2007-09-28 | 2008-08-06 | 四川成都成工工程机械股份有限公司 | Pilot hydraulic system with engineering machinery possessing pilot oil supply valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4567236B2 (en) * | 2001-05-25 | 2010-10-20 | 株式会社小松製作所 | Drive control device for cooling fan |
| JP2007106289A (en) * | 2005-10-14 | 2007-04-26 | Komatsu Ltd | Cooling device of construction machinery |
| JP2008126843A (en) * | 2006-11-21 | 2008-06-05 | Hitachi Constr Mach Co Ltd | Cooling device for working machine |
| JP2009248780A (en) * | 2008-04-07 | 2009-10-29 | Sumitomo (Shi) Construction Machinery Co Ltd | Gear driving part warming-up circuit of construction machine |
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2010
- 2010-03-24 CN CN201010131372XA patent/CN101804782B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548864Y (en) * | 2002-06-13 | 2003-05-07 | 广西柳工机械股份有限公司 | Driving axle radiator |
| CN2896192Y (en) * | 2006-03-09 | 2007-05-02 | 四川成都成工工程机械股份有限公司 | Engineering machinery driven bridge radiator |
| CN201096113Y (en) * | 2007-09-28 | 2008-08-06 | 四川成都成工工程机械股份有限公司 | Pilot hydraulic system with engineering machinery possessing pilot oil supply valve |
Non-Patent Citations (4)
| Title |
|---|
| JP特开2002-349262A 2002.12.04 |
| JP特开2007-106289A 2007.04.26 |
| JP特开2008-126843A 2008.06.05 |
| JP特开2009-248780A 2009.10.29 |
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| CN101804782A (en) | 2010-08-18 |
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Granted publication date: 20120919 Termination date: 20160324 |