CN205064451U - Hydraulic pressure structure with independent circulation heat dissipation and filtering capability - Google Patents
Hydraulic pressure structure with independent circulation heat dissipation and filtering capability Download PDFInfo
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- CN205064451U CN205064451U CN201520634418.8U CN201520634418U CN205064451U CN 205064451 U CN205064451 U CN 205064451U CN 201520634418 U CN201520634418 U CN 201520634418U CN 205064451 U CN205064451 U CN 205064451U
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Abstract
The utility model discloses a hydraulic pressure structure with independent circulation heat dissipation and filtering capability, this hydraulic system passes through hydraulic tank, the oil absorption filter, a duplex pump, the oil return filter, the steering pump, hydraulic pressure oil radiator, first check valve, foot brake valve, the pressure -gradient control valve, independent cooling system, the steering gear, safe valves, right side steering cylinder, left side steering cylinder, the distribution valve, the tipping bucket jar, the sequence valve, the swing arm jar, the pilot valve, the bi -pass ball valve, the pressure selection valve, second check valve and third check valve, the high rotational speed of engine has effectively been solved and power interference problem under the low condition of the power that dispels the heat, adjust the rotational speed of fan simultaneously according to the hydraulic oil temperature, improved the radiating efficiency, the fan can just be reversed by hydraulic motor control in addition, is favorable to the automatically cleaning of radiator core.
Description
Technical field
The utility model relates to a kind of construction machinery hydraulic system, belongs to engineering machinery field, specifically a kind of hydraulic structure with independent loops heat radiation and filtering function.
Background technique
For engineering machinery, dispelling the heat to high-temperature liquid force feed is a large key problem of hydraulic system, if radiation system can not normally work, it is many unfavorable to cause hydraulic system.Traditional heat-dissipating system is directly installed on motor by fan, arranges before and after air-air intercooler, water radiator, hydraulic oil radiator, air conditioner heat radiator.Its advantage is that cost is low, and shortcoming is that windage is large, easily blocks, easily overheated; Adopt wind-cooling heat dissipating to be difficult to the thermal radiation avoiding motor and silencing apparatus, and the comparison of resistance of motor to fan airstream is large.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of hydraulic structure with independent loops heat radiation and filtering function, uses hydraulic structure to drive, and can regulate the rotating speed of fan according to temperature, effectively can improve radiating efficiency.
To achieve these goals, the technical solution adopted in the utility model is: a kind of hydraulic structure with independent loops heat radiation and filtering function, comprises hydraulic oil container, oil adsorption filter, duplex pump, oil return filter cleaner, steering pump, hydraulic oil radiator, the first one-way valve, foot brake valves, pressure-gradient control valve, independent radiation system, commutator, safety valve group, right steering oil cylinder, left steering oil cylinder, distributing valve, tipping bucket cylinder, sequence valve, swing arm cylinder, pilot valve, two-way valve, pressure selection valve, the second one-way valve, the 3rd one-way valve;
Described duplex pump inlet port is connected to hydraulic oil container by oil adsorption filter, and the first oil outlet of duplex pump is connected with the oil inlet P 7 of distributing valve, and the second oil outlet of duplex pump is connected with the P1 mouth of foot brake valves; First oil outlet of distributing valve is connected with the rod chamber of tipping bucket cylinder, second oil outlet is connected with the rodless cavity of tipping bucket cylinder, 3rd oil outlet is connected with the rod chamber of swing arm cylinder, 4th oil outlet is connected with the rodless cavity of swing arm cylinder, the T7 mouth of distributing valve is connected with hydraulic oil container simultaneously, the a1 mouth of distributing valve is connected with the A1 mouth of pilot valve, the a2 mouth of distributing valve is connected with the A2 mouth of pilot valve, the b1 mouth of distributing valve is connected with the B1 mouth of pilot valve, the b2 mouth of distributing valve is connected with the B2 mouth of pilot valve, and the 2c mouth of distributing valve is connected with the 2C mouth of sequence valve;
The a mouth of described sequence valve is connected with the B2 mouth of pilot valve, and the return opening of sequence valve is connected with hydraulic oil container; The filler opening of pilot valve is connected with the b mouth of pressure selection valve by two-way valve; The P6 mouth of pressure selection valve is connected with the oil outlet of steering pump by the 3rd one-way valve, and the P8 mouth of pressure selection valve is connected with the rodless cavity of swing arm cylinder by the second one-way valve, and the return opening of pressure selection valve is connected with hydraulic oil container;
The inlet port of described steering pump is connected with hydraulic oil container, and oil outlet is connected with the P3 mouth of pressure-gradient control valve; The CF mouth of pressure-gradient control valve is connected with the P5 mouth of safety valve group, and the EF mouth of pressure-gradient control valve is connected with the oil inlet P 7 of distributing valve by the first one-way valve, and the LS mouth of pressure-gradient control valve is connected with the Ls mouth of commutator, and the T3 mouth of pressure-gradient control valve is connected with hydraulic oil container;
The T4 mouth of described commutator is connected with the P9 mouth of safety valve group, and the P4 mouth of commutator is connected with the P10 mouth of safety valve group, and the L mouth of commutator is connected with the P11 mouth of safety valve group, and the R mouth of commutator is connected with the P12 mouth of safety valve group; In safety valve group, one end of l mouth is connected with the rod chamber of right steering cylinder, the other end is connected with the rodless cavity of left steering cylinder, in safety valve group, one end of r mouth is connected with the rodless cavity of right steering cylinder, and the other end is connected with the rod chamber of left steering cylinder, and the T5 mouth of safety valve group is connected with hydraulic oil container;
Second oil outlet of described duplex pump is also connected with the P1 mouth of foot brake valves; The T1 mouth of foot brake valves is connected with hydraulic oil container, and the N mouth of foot brake valves is connected with the P2 mouth of independent radiation system; The T2 mouth of independent radiation system is connected to hydraulic oil container by radiator and oil return filter cleaner; The Dr mouth of independent radiation system is connected to hydraulic oil container.
Further, described independent radiation system comprises electric proportional pressure control valve, selector valve and oil hydraulic motor, described independent radiation system P2 mouth is connected with electric proportional overflow valve inlet, described independent radiation system T2 mouth is connected with electric proportional overflow valve outlet port, and described electric proportional pressure control valve is also connected with oil hydraulic motor by selector valve.
Preferably, described heat radiation motor is bidirectional variable oil hydraulic motor, and controlling fan moves direction, realizes the automatically cleaning of radiator core body.
The beneficial effects of the utility model are: the rotating speed that can regulate fan according to hydraulic oil temperature, reduces power loss, effectively can solve motor height rotating speed and power interference problem under heat radiation power low condition; Heat radiation stability of flow, effectively can extend the working life of hydraulic oil radiator; Employing is independent filters, and avoids recirculating oil quantity to suddenly change and impacts oil return filter core, and reduce the specification of filter core, easy to use and maintenance; Fan can control clockwise and anticlockwise by oil hydraulic motor, is conducive to the automatically cleaning of radiator core body; When dispelling the heat to the oil return of oil hydraulic motor and the oil return of electric proportional pressure control valve, because the oil temperature entering hydraulic oil radiator is relatively high, large with circumstance of temperature difference, radiating efficiency is higher; Fan drive system and braking system share the same power source, and system is simple, has certain energy-saving effect.
Accompanying drawing explanation
Fig. 1 is the utility model hydraulic system principle figure;
Fig. 2 is the utility model independence radiation system schematic diagram.
In figure: 1, hydraulic oil container, 2, oil adsorption filter, 3, duplex pump, 4, oil return filter cleaner, 5, steering pump, 6, hydraulic oil radiator, 7, first one-way valve, 8, foot brake valves, 9, pressure-gradient control valve, 10, independent radiation system, 101, electricity proportional pressure control valve, 102, selector valve, 103, oil hydraulic motor, 11, commutator, 12, safety valve group, 13, right steering oil cylinder, 14, left steering oil cylinder, 15, distributing valve, 16, tipping bucket cylinder, 17, sequence valve, 18, swing arm cylinder, 19, pilot valve, 20, two-way valve, 21, pressure selection valve, 22, second one-way valve, 23, 3rd one-way valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, there is a hydraulic structure for independent loops heat radiation and filtering function, comprise hydraulic oil container 1, oil adsorption filter 2, duplex pump 3, oil return filter cleaner 4, steering pump 5, hydraulic oil radiator 6, first one-way valve 7, foot brake valves 8, pressure-gradient control valve 9, independent radiation system 10, commutator 11, safety valve group 12, right steering oil cylinder 13, left steering oil cylinder 14, distributing valve 15, tipping bucket cylinder 16, sequence valve 17, swing arm cylinder 18, pilot valve 19, two-way valve 20, pressure selection valve 21, second one-way valve 22, the 3rd one-way valve 23;
The inlet port of described duplex pump 3 is connected to hydraulic oil container 1 by oil adsorption filter 2, and the first oil outlet of duplex pump 3 is connected with the oil inlet P 7 of distributing valve 15, and the second oil outlet of duplex pump 3 is connected with the P1 mouth of foot brake valves 8, first oil outlet of distributing valve 15 is connected with the rod chamber of tipping bucket cylinder 16, second oil outlet is connected with the rodless cavity of tipping bucket cylinder 16, 3rd oil outlet is connected with the rod chamber of swing arm cylinder 18, 4th oil outlet is connected with the rodless cavity of swing arm cylinder 18, the T7 mouth of distributing valve 15 is connected with hydraulic oil container simultaneously, the a1 mouth of distributing valve 15 is connected with the A1 mouth of pilot valve 19, the a2 mouth of distributing valve 15 is connected with the A2 mouth of pilot valve 19, the b1 mouth of distributing valve 15 is connected with the B1 mouth of pilot valve 19, the b2 mouth of distributing valve 15 is connected with the B2 mouth of pilot valve 19, the 2c mouth of distributing valve 15 is connected with the 2C mouth of sequence valve 17,
The a mouth of described sequence valve 17 is connected with the B2 mouth of pilot valve 19, and the return opening of sequence valve 17 is connected with hydraulic oil container 1; The filler opening of pilot valve 19 is connected with the b mouth of pressure selection valve 21 by two-way valve 20; The P6 mouth of pressure selection valve 21 is connected with the oil outlet of steering pump 5 by the 3rd one-way valve 23, and the P8 mouth of pressure selection valve 21 is connected with the rodless cavity of swing arm cylinder 18 by the second one-way valve 22, and the return opening of pressure selection valve 21 is connected with hydraulic oil container 1;
The inlet port of described steering pump 5 is connected with hydraulic oil container 1, is connected to the oil outlet of pump 5 and the P3 mouth of pressure-gradient control valve 9; The CF mouth of pressure-gradient control valve 9 is connected with the P5 mouth of safety valve group 12, and the EF mouth of pressure-gradient control valve 9 is connected with the oil inlet P 7 of distributing valve 15 by the first one-way valve 7, and the LS mouth of pressure-gradient control valve 9 is connected with the Ls mouth of commutator 11, and the T3 mouth of pressure-gradient control valve 9 is connected with hydraulic oil container 1;
The T4 mouth of described commutator 11 is connected with the P9 mouth of safety valve group 12, and the P4 mouth of commutator 11 is connected with the P10 mouth of safety valve group 12, and the L mouth of commutator 11 is connected with the P11 mouth of safety valve group 12, and the R mouth of commutator 11 is connected with the P12 mouth of safety valve group 12; In safety valve group 12, one end of l mouth is connected with the rod chamber of right steering cylinder 13, the other end is connected with the rodless cavity of left steering cylinder 14, in safety valve group 12, one end of r mouth is connected with the rodless cavity of right steering cylinder 13, the other end is connected with the rod chamber of left steering cylinder 14, and the T5 mouth of safety valve group 12 is connected with hydraulic oil container 1;
The T2 mouth of described independent radiation system 10 is connected to hydraulic oil container 1 by radiator 6 and oil return filter cleaner 4; The Dr mouth of independent radiation system 10 is connected to hydraulic oil container 1, and the P2 mouth of independent radiation system 10 is connected with the N mouth of foot brake valves 8; The T1 mouth of foot brake valves 8 is connected with hydraulic oil container 1.
Further, described independent radiation system 10 comprises electric proportional pressure control valve 101, selector valve 102 and oil hydraulic motor 103, the P2 mouth of described independent radiation system 10 is connected with the entrance of electric proportional pressure control valve 101, the T2 mouth of described independent radiation system 10 is connected with the outlet of electric proportional pressure control valve 101, and the entrance of described electric proportional pressure control valve 101 is connected to oil hydraulic motor 103 with outlet respectively by selector valve 102.
Preferably, described oil hydraulic motor 103 is bidirectional variable oil hydraulic motor, and controlling fan moves direction, realizes the automatically cleaning of radiator core body.
In sum, the utility model successful, convenient and practical, the rotating speed of fan can be regulated according to hydraulic oil temperature, reduce power loss, effectively can solve motor height rotating speed and power interference problem under heat radiation power low condition; Heat radiation stability of flow, effectively can extend the working life of hydraulic oil radiator; Employing is independent filters, and avoids recirculating oil quantity to suddenly change and impacts oil return filter core, and reduce the specification of filter core, easy to use and maintenance; Fan can control clockwise and anticlockwise by oil hydraulic motor, is conducive to the automatically cleaning of radiator core body; When dispelling the heat to the oil return of oil hydraulic motor and the oil return of electric proportional pressure control valve, because the oil temperature entering hydraulic oil radiator is relatively high, large with circumstance of temperature difference, radiating efficiency is higher; Fan drive system and braking system share the same power source, and system is simple, has certain energy-saving effect.
Claims (3)
1. one kind has the hydraulic structure of independent loops heat radiation and filtering function, it is characterized in that, comprise hydraulic oil container (1), oil adsorption filter (2), duplex pump (3), oil return filter cleaner (4), steering pump (5), hydraulic oil radiator (6), first one-way valve (7), foot brake valves (8), pressure-gradient control valve (9), independent radiation system (10), commutator (11), safety valve group (12), right steering oil cylinder (13), left steering oil cylinder (14), distributing valve (15), tipping bucket cylinder (16), sequence valve (17), swing arm cylinder (18), pilot valve (19), two-way valve (20), pressure selection valve (21), second one-way valve (22), 3rd one-way valve (23),
The inlet port of described duplex pump (3) is connected to hydraulic oil container (1) by oil adsorption filter (2), first oil outlet of duplex pump (3) is connected with the oil inlet P 7 of distributing valve (15), and the second oil outlet of duplex pump (3) is connected with the P1 mouth of foot brake valves (8), first oil outlet of distributing valve (15) is connected with the rod chamber of tipping bucket cylinder (16), second oil outlet of distributing valve (15) is connected with the rodless cavity of tipping bucket cylinder (16), 3rd oil outlet of distributing valve (15) is connected with the rod chamber of swing arm cylinder (18), 4th oil outlet of distributing valve (15) is connected with the rodless cavity of swing arm cylinder (18), the T7 mouth of distributing valve (15) is connected with hydraulic oil container (1) simultaneously, the a1 mouth of distributing valve (15) is connected with the A1 mouth of pilot valve (19), the a2 mouth of distributing valve (15) is connected with the A2 mouth of pilot valve (19), the b1 mouth of distributing valve (15) is connected with the B1 mouth of pilot valve (19), the b2 mouth of distributing valve (15) is connected with the B2 mouth of pilot valve (19), the 2c mouth of distributing valve (15) is connected with the 2C mouth of sequence valve (17),
The a mouth of described sequence valve (17) is connected with the B2 mouth of pilot valve (19), and the return opening of sequence valve (17) is connected with hydraulic oil container (1); The filler opening of pilot valve (19) is connected with the b mouth of pressure selection valve (21) by two-way valve (20); The P6 mouth of pressure selection valve (21) is connected with the oil outlet of steering pump (5) by the 3rd one-way valve (23), the P8 mouth of pressure selection valve (21) is connected with the rodless cavity of swing arm cylinder (18) by the second one-way valve (22), and the return opening of pressure selection valve (21) is connected with hydraulic oil container (1);
The inlet port of described steering pump (5) is connected with hydraulic oil container (1), and the oil outlet of steering pump (5) is connected with the P3 mouth of pressure-gradient control valve (9); The CF mouth of pressure-gradient control valve (9) is connected with the P5 mouth of safety valve group (12), the EF mouth of pressure-gradient control valve (9) is connected with the oil inlet P 7 of distributing valve (15) by the first one-way valve (7), the LS mouth of pressure-gradient control valve (9) is connected with the Ls mouth of commutator (11), and the T3 mouth of pressure-gradient control valve (9) is connected with hydraulic oil container (1);
The T4 mouth of described commutator (11) is connected with the P9 mouth of safety valve group (12), the P4 mouth of commutator (11) is connected with the P10 mouth of safety valve group (12), the L mouth of commutator (11) is connected with the P11 mouth of safety valve group (12), and the R mouth of commutator (11) is connected with the P12 mouth of safety valve group (12); In safety valve group (12), one end of l mouth is connected with the rod chamber of right steering cylinder (13), the other end is connected with the rodless cavity of left steering cylinder (14), in safety valve group (12), one end of r mouth is connected with the rodless cavity of right steering cylinder (13), the other end is connected with the rod chamber of left steering cylinder (14), and the T5 mouth of safety valve group (12) is connected with hydraulic oil container 1;
The T2 mouth of described independent radiation system (10) is connected to hydraulic oil container (1) by radiator (6) and oil return filter cleaner (4); The Dr mouth of independent radiation system (10) is connected to hydraulic oil container (1), and the P2 mouth of independent radiation system (10) is connected with the N mouth of foot brake valves (8); The T1 mouth of foot brake valves (8) is connected with hydraulic oil container (1).
2. a kind of hydraulic structure with independent loops heat radiation and filtering function according to claim 1, it is characterized in that, described independent radiation system (10) comprises electric proportional pressure control valve (101), selector valve (102) and oil hydraulic motor (103), the P2 mouth of described independent radiation system (10) is connected with the entrance of electric proportional pressure control valve (101), the T2 mouth of described independent radiation system (10) is connected with the outlet of electric proportional pressure control valve (101), the entrance of described electric proportional pressure control valve (101) is connected to oil hydraulic motor (103) with outlet respectively by selector valve (102).
3. a kind of hydraulic structure with independent loops heat radiation and filtering function according to claim 2, it is characterized in that, described oil hydraulic motor (103) is bidirectional variable oil hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634418.8U CN205064451U (en) | 2015-08-21 | 2015-08-21 | Hydraulic pressure structure with independent circulation heat dissipation and filtering capability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634418.8U CN205064451U (en) | 2015-08-21 | 2015-08-21 | Hydraulic pressure structure with independent circulation heat dissipation and filtering capability |
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| CN205064451U true CN205064451U (en) | 2016-03-02 |
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| CN201520634418.8U Active CN205064451U (en) | 2015-08-21 | 2015-08-21 | Hydraulic pressure structure with independent circulation heat dissipation and filtering capability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867146A (en) * | 2017-11-22 | 2018-04-03 | 徐工集团工程机械有限公司 | A kind of pressure regulating system of craneman's house hydraulic-driven air conditioner |
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2015
- 2015-08-21 CN CN201520634418.8U patent/CN205064451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107867146A (en) * | 2017-11-22 | 2018-04-03 | 徐工集团工程机械有限公司 | A kind of pressure regulating system of craneman's house hydraulic-driven air conditioner |
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