CN203111003U - Converging oil supply system of hinged type dumper lifting hydraulic system - Google Patents

Converging oil supply system of hinged type dumper lifting hydraulic system Download PDF

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Publication number
CN203111003U
CN203111003U CN 201220745811 CN201220745811U CN203111003U CN 203111003 U CN203111003 U CN 203111003U CN 201220745811 CN201220745811 CN 201220745811 CN 201220745811 U CN201220745811 U CN 201220745811U CN 203111003 U CN203111003 U CN 203111003U
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China
Prior art keywords
control valve
valve
lifting
load
steering
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Application number
CN 201220745811
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Chinese (zh)
Inventor
梁媛媛
孟庆勇
袁自成
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XCMG Research Institute
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Jiangsu Xuzhou Construction Machinery Institute of Xuzhou Construction Machinery Group Co Ltd
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Abstract

The utility model discloses a converging oil supply system of a hinged type dumper lifting hydraulic system. The converging oil supply system comprises a hydraulic oil tank, a load sensitive variable displacement piston pump, a two-position and tee-joint magnetic exchange valve, a steering control valve set, a sequence valve, an electromagnetic switch valve, a lifting control valve set and a gear pump. The load sensitive variable displacement piston pump is used for supplying oil to a steering oil cylinder through the steering control valve set, and the gear pump is used for supplying oil to a lifting oil cylinder through the lifting control valve set. A load sensitive port of the steering control valve set, a load sensitive port LS and an oil discharging port P of the load sensitive variable displacement piston pump are respectively connected with the two-position and tee-joint magnetic exchange valve. The steering control valve set and the lifting control valve set are respectively connected with the sequence valve. A control oil port and the hydraulic oil tank of the sequence valve are respectively connected with the electromagnetic switch valve. The lifting pump delivery is not necessary to be large, control is easy, the purpose of converging with the lifting system is achieved, and energy conservation of a steering system is not affected.

Description

Articulated truck lifting hydraulic efficiency pressure system interflow fuel-feed system
Technical field
The utility model relates to a kind of hydraulic system of engineering vehicle, specifically is a kind of articulated truck lifting hydraulic efficiency pressure system interflow fuel-feed system.
Background technology
At present, articulated truck hydraulic efficiency pressure system both domestic and external generally adopts and is respectively steering swivel system and hoisting system fuel system, because the required flow of steering swivel system is less, and the required flow of hoisting system is very big, so the lifting capacity of pump is bigger, cause element individual big, pipeline is thick, is not easy to pipeline and space and arranges; As adopt two little displacement pump duplexs to form, and then can cause element and pipeline quantity many, also be not easy to the space and arrange.Because dumping car can not turn in the lifting working process simultaneously, the lifting hydraulic efficiency pressure system can adopt and steering swivel system interflow fuel system.The part mine truck has adopted the mode that turns to lifting interflow fuel feeding at present, but the steering swivel system of mine truck is generally constant-pressure variable control, the steering swivel system of articulated truck then mostly is load-sensitive control, so its fuel system of collaborating with lifting is different from the ore deposit card.
Summary of the invention
Problem at above-mentioned prior art existence, the utility model provides a kind of articulated truck lifting hydraulic efficiency pressure system interflow fuel-feed system, makes the lifting pump capacity needn't be very big, and control is simple, both realized and the hoisting system interflow, also do not influenced the energy-conservation of steering swivel system.
To achieve these goals, a kind of articulated truck lifting of the utility model hydraulic efficiency pressure system interflow fuel-feed system, comprise hydraulic reservoir, load-sensitive Variable plunger pump, two-bit triplet solenoid directional control valve, steering control valve group, sequence valve, electromagnetic switch valve, hoist control valve group and gear type pump, the load-sensitive Variable plunger pump is the steering oil oil supply cylinder by the steering control valve group, and gear type pump is the elevating ram fuel feeding by the hoist control valve group; The two-bit triplet solenoid directional control valve is connected with the load-transducing mouth of steering control valve group, load-transducing mouth LS mouth and the oil outlet P mouth of load-sensitive Variable plunger pump respectively; Sequence valve is connected with the hoist control valve group with the steering control valve group respectively; Electromagnetic switch valve is connected with hydraulic reservoir with the control port of sequence valve respectively.
Interflow of the present utility model fuel-feed system makes the lifting pump capacity needn't be very big, saves the space, is convenient to the control of pipeline, and control is simple, turns to oil sources to become a constant-pressure variable oil sources during lifting and collaborates to finish with the lifting oil sources, has reduced the lifting pump capacity; And after the lifting end, turn to oil sources still to revert to load-sensitive variable oil sources, and both realized and the hoisting system interflow, do not influence the energy-conservation of steering swivel system yet.
Description of drawings
Fig. 1 is the utility model functional block diagram.
Among the figure: 1, hydraulic reservoir, 2, the load-sensitive Variable plunger pump, 3, the two-bit triplet solenoid directional control valve, 4, the steering control valve group, 5, sequence valve, 6, electromagnetic switch valve, 7, the hoist control valve group, 8, gear type pump.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model articulated truck lifting hydraulic efficiency pressure system interflow fuel-feed system, comprise hydraulic reservoir 1, load-sensitive Variable plunger pump 2, two-bit triplet solenoid directional control valve 3, steering control valve group 4, sequence valve 5, electromagnetic switch valve 6, hoist control valve group 7 and gear type pump 8, load-sensitive Variable plunger pump 2 is the steering oil oil supply cylinder by steering control valve group 4, and gear type pump 8 is the elevating ram fuel feeding by hoist control valve group 7; Two-bit triplet solenoid directional control valve 3 is connected with the load-transducing mouth of steering control valve group 4, load-transducing mouth LS mouth and the oil outlet P mouth of load-sensitive Variable plunger pump 2 respectively; Sequence valve 5 is connected with hoist control valve group 7 with steering control valve group 4 respectively; Electromagnetic switch valve 6 is connected with hydraulic reservoir 1 with the control port of sequence valve 5 respectively.S is the oil suction of load-sensitive Variable plunger pump 2, and T is the leakage hydraulic fluid port of load-sensitive Variable plunger pump 2.
The turning to of articulated truck, lifting action be independently, and when lifting was moved, the electromagnet y1 of electromagnetic switch valve 6 and the electromagnet y2 of two-bit triplet solenoid directional control valve 3 were simultaneously; Thereby electromagnetic switch valve 6 and sequence valve 5 are opened, the load feedback signal that the load-transducing mouth LS mouth of load-sensitive Variable plunger pump 2 obtains then switches to the delivery pressure of itself from steering swivel system, this moment load-sensitive Variable plunger pump 2 quite with constant-pressure variable pumping actions, be the hoisting system pressure oil output by sequence valve 5, realize that with gear type pump 8 be the hoisting system fuel feeding jointly.After the lifting release, the electromagnet y1 of electromagnetic switch valve 6 and the electromagnet y2 of two-bit triplet solenoid directional control valve 3 cut off the power supply simultaneously; The load feedback signal that the load-transducing mouth LS mouth of load-sensitive Variable plunger pump 2 obtains reverts to the load signal of steering swivel system, will export its required flow and pressure according to the needs of steering swivel system.

Claims (1)

1. an articulated truck lifting hydraulic efficiency pressure system is collaborated fuel-feed system, it is characterized in that, comprise hydraulic reservoir (1), load-sensitive Variable plunger pump (2), two-bit triplet solenoid directional control valve (3), steering control valve group (4), sequence valve (5), electromagnetic switch valve (6), hoist control valve group (7) and gear type pump (8), load-sensitive Variable plunger pump (2) is the steering oil oil supply cylinder by steering control valve group (4), and gear type pump (8) is the elevating ram fuel feeding by hoist control valve group (7); Two-bit triplet solenoid directional control valve (3) is connected with the load-transducing mouth of steering control valve group (4), load-transducing mouth LS mouth and the oil outlet P mouth of load-sensitive Variable plunger pump (2) respectively; Sequence valve (5) is connected with hoist control valve group (7) with steering control valve group (4) respectively; Electromagnetic switch valve (6) is connected with hydraulic reservoir (1) with the control port of sequence valve (5) respectively.
CN 201220745811 2012-12-29 2012-12-29 Converging oil supply system of hinged type dumper lifting hydraulic system Active CN203111003U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220745811 CN203111003U (en) 2012-12-29 2012-12-29 Converging oil supply system of hinged type dumper lifting hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220745811 CN203111003U (en) 2012-12-29 2012-12-29 Converging oil supply system of hinged type dumper lifting hydraulic system

Publications (1)

Publication Number Publication Date
CN203111003U true CN203111003U (en) 2013-08-07

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103522929A (en) * 2013-10-22 2014-01-22 广西柳工机械股份有限公司 Fixed delivery and variable delivery hydraulic system of mining dump truck
CN104828135A (en) * 2014-12-22 2015-08-12 北汽福田汽车股份有限公司 Hydraulic control system and mining dump truck with same
CN105835745A (en) * 2016-05-05 2016-08-10 山东能源重装集团泰装工程装备制造有限公司 Self-loading and self-unloading molten aluminum ladle transportation vehicle
CN106364552A (en) * 2016-08-30 2017-02-01 广州电力机车有限公司 Hydraulic system for six-wheel drive dumper
CN108657050A (en) * 2017-03-31 2018-10-16 比亚迪股份有限公司 The hydraulic lifting system and dumper of dumper
CN106274605B (en) * 2016-08-18 2019-02-19 广西柳工机械股份有限公司 Quarry tipper load-sensitive combining hydraulic system
CN110294014A (en) * 2019-07-25 2019-10-01 农业农村部南京农业机械化研究所 A kind of hydraulic steering system and its working method of self-correction
CN110816651A (en) * 2019-11-07 2020-02-21 广州电力机车有限公司 Control method of mining car electro-hydraulic system
CN111086558A (en) * 2019-12-26 2020-05-01 北汽福田汽车股份有限公司 Hydraulic power-assisted steering system, control method and engineering vehicle

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103522929A (en) * 2013-10-22 2014-01-22 广西柳工机械股份有限公司 Fixed delivery and variable delivery hydraulic system of mining dump truck
CN103522929B (en) * 2013-10-22 2016-04-06 广西柳工机械股份有限公司 Quarry tipper determines variable delivery hydraulic system
CN104828135A (en) * 2014-12-22 2015-08-12 北汽福田汽车股份有限公司 Hydraulic control system and mining dump truck with same
CN104828135B (en) * 2014-12-22 2017-06-06 北汽福田汽车股份有限公司 Hydraulic control system and the quarry tipper with it
CN105835745A (en) * 2016-05-05 2016-08-10 山东能源重装集团泰装工程装备制造有限公司 Self-loading and self-unloading molten aluminum ladle transportation vehicle
CN105835745B (en) * 2016-05-05 2018-11-06 山东能源重装集团泰装工程装备制造有限公司 A kind of Self-loading-unloading aluminum water bag transport vehicle
CN106274605B (en) * 2016-08-18 2019-02-19 广西柳工机械股份有限公司 Quarry tipper load-sensitive combining hydraulic system
CN106364552A (en) * 2016-08-30 2017-02-01 广州电力机车有限公司 Hydraulic system for six-wheel drive dumper
CN108657050A (en) * 2017-03-31 2018-10-16 比亚迪股份有限公司 The hydraulic lifting system and dumper of dumper
CN110294014A (en) * 2019-07-25 2019-10-01 农业农村部南京农业机械化研究所 A kind of hydraulic steering system and its working method of self-correction
CN110816651A (en) * 2019-11-07 2020-02-21 广州电力机车有限公司 Control method of mining car electro-hydraulic system
CN111086558A (en) * 2019-12-26 2020-05-01 北汽福田汽车股份有限公司 Hydraulic power-assisted steering system, control method and engineering vehicle

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20160606

Address after: 221000 Jiangsu city in Xuzhou Province Economic Development Zone Xuzhou High Road No. 39

Patentee after: Xuzhou XCMG Mining Machinery Co., Ltd.

Address before: 221000 No. 8, Mount Blue Road, Xuzhou Economic Development Zone, Jiangsu, China

Patentee before: Jiangsu Xuzhou Construction Machinery Institute, Xuzhou Construction Machinery Group Co., Ltd.

C41 Transfer of patent application or patent right or utility model