CN103910311B - A kind of hydraulic efficiency pressure system of empty container piling crane car - Google Patents
A kind of hydraulic efficiency pressure system of empty container piling crane car Download PDFInfo
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- CN103910311B CN103910311B CN201410140865.8A CN201410140865A CN103910311B CN 103910311 B CN103910311 B CN 103910311B CN 201410140865 A CN201410140865 A CN 201410140865A CN 103910311 B CN103910311 B CN 103910311B
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Abstract
The invention provides a kind of hydraulic efficiency pressure system of empty container piling crane car, comprise and by duplex gear pump, the hydraulic oil in fuel tank being imported in integrated multipath valve, then by pilot control handle, the hydraulic oil in integrated multipath valve supplied in lift oil tank, dump ram and steering cylinder respectively and form respective circulating oil path; Described fuel tank is connected with gear type pump, and the mouth of described gear type pump, pilot control handle is all connected with the arrival end of fast lifting valve group, and the exit end of fast lifting valve group is connected with lift oil tank by the first back pressure check valve; Lift oil tank is connected with forced landing valve by governor valve, and the electromagnetic valve of forced landing valve is connected with hand switch by electric wire; Described dump ram is connected with direct acting by pass valve, and described integrated multipath valve is connected to form circulating oil path with dump ram, direct acting by pass valve respectively.By tilting, turn to, the concentrating in together of the function such as lifting, reduce piping layout, improve suspender job security and improve door frame lifting velocity.
Description
Technical field
The present invention relates to a kind of empty container piling crane car, be specifically related to a kind of hydraulic efficiency pressure system of empty container piling crane car.
Background technology
Empty container piling crane car is widely used in harbour, harbour, stockyard, be a kind ofly specialize in the work such as the piling up of empty container, transition transport, what empty container piling crane car realized door frame mainly through hydraulic efficiency pressure system tilts forward and back action, the hoisting and down maneuver, the handling maneuver of car load, the oil supply function etc. of suspender of freight container.Its hydraulic efficiency pressure system mainly comprises gear type pump, multiway valve, deflector, pressure-gradient control valve, oil cylinder, guide oil source valve, pilot control handle etc., main hydraulic component is design arranged apart, there is following shortcoming in this system: one is that the hydraulic efficiency pressure system component of empty container piling crane car is many, the functions such as it tilts, turn to, lifting are separately arranged, piping layout is complicated, and maintenance is inconvenient and cost is high; Two is because oil circuit is long, fuel feeding is few, makes the door frame lifting velocity of empty container piling crane car slow; Three is poor safety performance; Four is that tiny iron filings in hydraulic reservoir cannot effectively be collected; Liquid level that five is that door frame is fully loaded when declining fast in hydraulic reservoir sharply change can alter oil outward from oil tank breather.
Summary of the invention
The present invention, in order to solve the problems of the technologies described above, provides a kind of hydraulic efficiency pressure system of empty container piling crane car, realizes, turns to, the centralized control of the function such as lifting, and make door frame steadily, action rapidly.
Technical scheme of the present invention is: a kind of hydraulic efficiency pressure system of empty container piling crane car, comprise and by duplex gear pump, the hydraulic oil in fuel tank being imported in integrated multipath valve, then by pilot control handle, the hydraulic oil in integrated multipath valve supplied in lift oil tank, dump ram and steering cylinder respectively and form respective circulating oil path; Described fuel tank is connected with gear type pump, and the mouth of described gear type pump, pilot control handle is all connected with the arrival end of fast lifting valve group, and the exit end of fast lifting valve group is connected with lift oil tank by the first back pressure check valve; The rodless cavity of described lift oil tank is connected with forced landing valve by governor valve, and the electromagnetic valve of described forced landing valve is connected with hand switch by electric wire; Described dump ram is connected with direct acting by pass valve, and described integrated multipath valve is connected to form circulating oil path with dump ram, direct acting by pass valve respectively.
Further, the oil circuit between described pilot control handle and integrated multipath valve is provided with two-bit triplet electromagnetic valve.
The front end of described steering cylinder is connected with deflector, and described deflector and integrated multipath valve are connected to form circulating oil path, and its in-line is provided with check valve.
Another exit end of described fast lifting valve group is connected with the arrival end of the second back pressure check valve, radiator respectively, and the arrival end of described radiator is provided with coolant-temperature switch, and described coolant-temperature switch is electrically connected with the fan on radiator; The exit end of described second back pressure check valve, radiator is all connected with fuel tank.
Described fuel tank is provided with main return filter and oil tank breather, and the below of described oil tank breather is provided with gear oil screen.
The bottom of described fuel tank is provided with magnet.
So the present invention has following beneficial effect:
1, the present invention by the inclination of empty container piling crane car, turn to, the concentrating in together of the function such as lifting, reduce piping layout, convenient maintenance.
2, the oil circuit between guide's control handle and integrated multipath valve is provided with two-bit triplet electromagnetic valve, realize carrying out control break-make to the oil circuit between integrated multipath valve and suspender, also toward suspender fuel feeding, thus suspender job security can not be improve under ensureing operational circumstances.
3, hydraulic oil is supplied lift oil tank by integrated multipath valve by duplex gear pump, gear type pump supplies separately hydraulic oil to lift oil tank by fast lifting valve group simultaneously, namely duplex gear pump and gear type pump supply hydraulic oil to lift oil tank simultaneously, thus reach door frame fast lifting function, door frame lifting velocity improves 16%, thus improves operating efficiency.In addition, when lift oil tank does not work, the fluid of gear type pump supply fast lifting valve group directly flows through back pressure check valve and radiator, carries out auxiliary heat dissipation to whole hydraulic efficiency pressure system.
4, the electromagnetic valve of forced landing valve is electrically connected with hand switch, when hydraulic efficiency pressure system has fault, opens the electromagnetic valve of forced landing valve by hand switch, open hydraulic oil circuit in lift oil tank, hydraulic oil is inputted in fuel tank; In addition, the flow regulating valve in forced landing valve can control the descending speed of door frame, enables door frame safety and steady drop to ground.
5, owing to being provided with gear oil screen below oil tank breather, when door frame is fully loaded decline fast time, the spilled oil situation effectively avoiding fuel tank to cause because liquid level sharply changes, prevents fluid from spilling from oil tank breather.
6, because tank bottoms is provided with magnet, magnet can adsorb the tiny iron filings in fluid, thus the metal swarf in fuel tank is achieved Efficient Collection, and the iron filings reduced in fluid are on the impact in hydraulic pressure component life-span.
7, because dump ram is connected with direct acting by pass valve, wherein direct acting by pass valve plays the effect of check valve and by pass valve, and when hydraulic oil flows toward dump ram one end, it is one-way conduction; And the hydraulic oil in dump ram is when flowing to direct acting by pass valve, the by pass valve in direct acting by pass valve works, and the unlatching control presssure of the by pass valve in direct acting by pass valve is 14Mpa, carries out forward swing to control door frame pulsation-free, effectively prevents the shake of door frame.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
In figure: 1-fuel tank, 2-hand switch, 3-pilot control handle, 4-integrated multipath valve, 5-energy storage, 6-governor valve, 7-lift oil tank, 8-forced landing valve, 9-fast lifting valve group, 10-dump ram, 11-direct acting by pass valve, 12-first back pressure check valve, 13-deflector, 14-steering cylinder, 15-oil tank breather, 16-keeps off oil screen, 17-check valve, 18-second back pressure check valve, 19-coolant-temperature switch, 20-radiator, 21-gear type pump, 22-two-bit triplet electromagnetic valve, 23-duplex gear pump, 24-magnet, the main return filter of 25-.
Detailed description of the invention
As shown in Figure 1, in a kind of hydraulic efficiency pressure system of empty container piling crane car, the bottom of fuel tank 1 is provided with magnet 24, main return filter 25 and oil tank breather 15 are equipped with in top, and gear oil screen 16 is housed in the below of oil tank breather 15; The oil inlet end of gear type pump 21, duplex gear pump 23 is all connected with fuel tank 1, and two pump discharges of duplex gear pump 23 are connected with P1, P2 mouth on integrated multipath valve 4 respectively, and the outlet of gear type pump 21 is connected with the G mouth in fast lifting valve group 9.LSO mouth on integrated multipath valve 4 is connected with the LS mouth of deflector 13, O mouth on integrated multipath valve 4 is connected with the P3 mouth of deflector 13 by check valve 17, T3 mouth in deflector 13 is connected with fuel tank 1 by main return filter 25, L with the R mouth of deflector 13 is connected with two hydraulic fluid ports of steering cylinder 14 respectively.T1, T2 mouth on integrated multipath valve 4 is connected with fuel tank 1 by main return filter 25, N mouth connects with energy storage 5, Q mouth is connected with the P4 mouth on pilot control handle 3, the P6 mouth on two-bit triplet electromagnetic valve 22 respectively; Be connected with fuel tank 1 after T6 mouth on two-bit triplet electromagnetic valve 22 is connected with the T4 mouth on pilot control handle 3; A4 mouth on pilot control handle 3 is connected with the H mouth in the D2 mouth on integrated multipath valve 4, fast lifting valve group 9 respectively, and B4, A5, B5 mouth on pilot control handle 3 is connected with D1, D4, D3 mouth on integrated multipath valve 4 respectively.D5 mouth on integrated multipath valve 4 is connected with the A6 mouth on two-bit triplet electromagnetic valve 22, A1 on integrated multipath valve 4, A2 mouth is connected with the F mouth on governor valve 6 respectively, the cylinder bottom of E mouth respectively with two lift oil tanks 7 of governor valve 6 is connected, the F mouth of two governor valves 6 by three-way pipe respectively with the U mouth of forced landing valve 8, the outlet of the first back pressure check valve 12 connects, the V mouth of forced landing valve 8 directly connects fuel tank 1, hand switch 2 is connected with the electromagnetic valve in forced landing valve 8 by electric wire, the entrance of the first back pressure check valve 12 is connected with the J mouth of fast lifting valve group 9, be communicated with between M mouth in fast lifting valve group 9 and K mouth, S mouth in fast lifting valve group 9 respectively with the second back pressure check valve 18, the entrance of radiator 20 connects, the arrival end of radiator 20 is provided with coolant-temperature switch 19, fan on radiator 20 is connected with coolant-temperature switch 19 by electric wire, second back pressure check valve 18 is connected with fuel tank 1 by main return filter 25 with the oil outlet end of radiator 20.A2, B2 mouth on integrated multipath valve 4 is connected with the rodless cavity of two dump rams 10, the X mouth of two direct acting by pass valves 11 respectively, and the Y mouth of direct acting by pass valve 11 is connected with the rod chamber of dump ram 10; Corresponding hydraulic fluid port on the suspender of A3, B3 mouth connection container stacking machine on integrated multipath valve 4.
Working process of the present invention is as follows:
After empty container piling crane car starts, gear type pump 21 is started working under the drive of driving engine, duplex gear pump 23 is started working under the drive of change speed gear box, and corresponding high pressure liquid force feed will by corresponding pipeline supply fast lifting valve group 9 and integrated multipath valve 4.
When empty container piling crane car needs door frame tilting action, navigating mate manipulation pilot control handle 3, Q mouth on integrated multipath valve 4 provides pressure to be the guide oil of 3.5Mpa toward the P4 mouth on pilot control handle 3, A5 or the B5 mouth of pilot control handle 3 is oily to D3 or the D4 confession of the inclination valve block of integrated multipath valve 4, to promote the motion of the inclination main valve plug on integrated multipath valve 4, realize oil circuit to switch, then by the rodless cavity of B2 or the A2 mouth on integrated multipath valve 4 toward dump ram 10 or the X confession oil of direct acting by pass valve 11, wherein enter the fluid of direct acting by pass valve 11 again by the rod chamber fuel feeding of Y mouth toward dump ram 10, action is tilted forward and back with what realize empty container piling crane car door frame, to complete the work of stacking container casing smoothly.When fluid in direct acting by pass valve 11 flows from X toward Y, direct acting by pass valve 11 one-way conduction, the by pass valve in direct acting by pass valve 11 is inoperative; When fluid in direct acting by pass valve 11 flows from Y toward X, the by pass valve in direct acting by pass valve 11 works, and the unlatching control presssure of the by pass valve in direct acting by pass valve 11 is 14Mpa, carries out forward swing, effectively prevent the shake of door frame to control door frame pulsation-free.
When empty container piling crane car needs door frame to need to hoist action, manipulation pilot control handle 3, make A4, B4 mouth on it toward the main valve plug work that hoists promoted during guide's hydraulic fluid port D1, D2 fuel feeding on integrated multipath valve 4 on integrated multipath valve 4, by the F mouth of governor valve 6 toward lift oil tank 7 fuel feeding, realize the action that hoists of door frame; A4 mouth on pilot control handle 3 is simultaneously to the H confession oil of fast lifting valve group 9, the inner spool of fast lifting valve group 9 is opened, the fluid that then gear type pump 21 exports will through the J mouth of fast lifting valve group 9 toward the first back pressure check valve 12 fuel feeding, until deliver to the cavity of lift oil tank 7, can collaborate with the fuel feeding of twin pump 23, realize door frame fast lifting, door frame speed improves about 16 ﹪.When door frame declines by deadweight, the at this moment flowing velocity of governor valve 6 hydraulic control oil, thus the descending speed controlling door frame.
When complete machine hydraulic system failure, freight container is also in a door frame high position, then manually can open the electromagnetic valve in forced landing valve 8 by switch 2, fluid in lift oil tank 7 is entered fuel tank 1 by forced landing valve 8, in addition, in forced landing valve 8, flow regulating valve also effectively can control the descending speed of door frame, until after freight container is put into ground safely, just upkeep operation can be carried out to hydraulic efficiency pressure system.
When empty container piling crane car door frame does not hoist action, the fluid that gear type pump 21 supplies fast lifting valve group 9 directly flows through the second back pressure check valve 18 and radiator 20, when oil temperature higher than setting value as 55 DEG C time, coolant-temperature switch 19 controls the blower fan work on radiator 20, in real time to the fluid heat radiation flowing through radiator 20, fluid enters in fuel tank 1 after finally flowing in main return filter 25 impurity filtered out in fluid.Therefore the effect of gear type pump 21 has two: one to be the fast lifting realizing door frame, two is the auxiliary heat dissipations achieving whole hydraulic efficiency pressure system.
When empty container piling crane car will realize handling maneuver, navigating mate steering dish, the pressure-gradient control valve that the LS mouth of at this moment deflector 13 can be opened in integrated multipath valve 4 to LSO mouth pressure signal of integrated multipath valve 4, by O mouth, check valve 17 on integrated multipath valve 4 toward the P3 confession oil in deflector 13, its charge oil pressure is 17.5Mpa, then fluid is by the L mouth in deflector 3, R mouth supply steering cylinder 14, realizes the handling maneuver of car load; Fluid unnecessary in deflector 3 is back to fuel tank 1 through T3 mouth, and when complete machine does not turn to demand, the pressure-gradient control valve of integrated multipath valve 4 inside will stop toward deflector 3 fuel feeding, and at this moment fluid all supplies lift oil tank, dump ram or suspender action; By A3, B3 mouth on integrated multipath valve 4 toward suspender fuel feeding, and two-bit triplet electromagnetic valve 22 can realize the on-off of guide oil hydraulic control, under ensureing maloperation situation, also toward suspender fuel feeding, can not guarantee the safety of suspender work.
When empty container piling crane car everything does not work, the fluid that gear type pump 21 and duplex gear pump 23 supply hydraulic efficiency pressure system is all back to fuel tank 1, material is thus formed a complete working cycle.
Above embodiment is not limited only to protection scope of the present invention, all modify based on basic thought of the present invention or change all belong to protection scope of the present invention.
Claims (6)
1. the hydraulic efficiency pressure system of an empty container piling crane car, comprise and by duplex gear pump (23), the hydraulic oil in fuel tank (1) being imported in integrated multipath valve (4), then the hydraulic oil in integrated multipath valve (4) supplied respectively in lift oil tank (7), dump ram (10) and steering cylinder (14) by pilot control handle (3) and form respective circulating oil path; It is characterized in that: described fuel tank (1) is connected with gear type pump (21), the mouth of described gear type pump (21), pilot control handle (3) is all connected with the arrival end of fast lifting valve group (9), and the exit end of fast lifting valve group (9) is connected with lift oil tank (7) by the first back pressure check valve (12); The rodless cavity of described lift oil tank (7) is connected with forced landing valve (8) by governor valve (6), and the electromagnetic valve of described forced landing valve (8) is connected with hand switch (2) by electric wire; Described dump ram (10) is connected with direct acting by pass valve (11), and described integrated multipath valve (4) is connected to form circulating oil path with dump ram (10), direct acting by pass valve (11) respectively.
2. hydraulic efficiency pressure system according to claim 1, is characterized in that: the oil circuit between described pilot control handle (3) and integrated multipath valve (4) is provided with two-bit triplet electromagnetic valve (22).
3. hydraulic efficiency pressure system according to claim 1, it is characterized in that: the front end of described steering cylinder (14) is connected with deflector (13), described deflector (13) and integrated multipath valve (4) are connected to form circulating oil path, and its in-line is provided with check valve (17).
4. hydraulic efficiency pressure system according to claim 1, it is characterized in that: another exit end of described fast lifting valve group (9) is connected with the arrival end of the second back pressure check valve (18), radiator (20) respectively, the arrival end of described radiator (20) is provided with coolant-temperature switch (19), and described coolant-temperature switch (19) is electrically connected with the fan on radiator (20); The exit end of described second back pressure check valve (18), radiator (20) is all connected with fuel tank (1).
5. hydraulic efficiency pressure system according to claim 1, is characterized in that: described fuel tank (1) is provided with main return filter (25) and oil tank breather (15), and the below of described oil tank breather (15) is provided with gear oil screen (16).
6. hydraulic efficiency pressure system according to claim 1, is characterized in that: the bottom of described fuel tank (1) is provided with magnet (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410140865.8A CN103910311B (en) | 2014-04-10 | 2014-04-10 | A kind of hydraulic efficiency pressure system of empty container piling crane car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410140865.8A CN103910311B (en) | 2014-04-10 | 2014-04-10 | A kind of hydraulic efficiency pressure system of empty container piling crane car |
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| CN103910311A CN103910311A (en) | 2014-07-09 |
| CN103910311B true CN103910311B (en) | 2016-01-13 |
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| CN106082038B (en) * | 2016-08-13 | 2018-03-09 | 安徽合力股份有限公司 | A kind of fool proof forklift hydraulic system |
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| CN106904558B (en) * | 2017-04-18 | 2023-07-28 | 安徽合力股份有限公司 | Hydraulic control system for lifting appliance of heavy forklift |
| CN109236760A (en) * | 2017-05-26 | 2019-01-18 | 天津滨海光热跟踪技术有限公司 | A kind of two-ram hydraulic drive system |
| CN110589723A (en) * | 2019-10-14 | 2019-12-20 | 杭叉集团股份有限公司 | Hydraulic control system for electric forklift gantry |
| CN111017822A (en) * | 2019-11-28 | 2020-04-17 | 合肥搬易通科技发展有限公司 | Hydraulic system of three-way piling car |
| CN111547648A (en) * | 2020-04-24 | 2020-08-18 | 安徽合力股份有限公司 | Stacker load holding hydraulic system |
| CN112721773B (en) * | 2020-12-30 | 2022-01-21 | 河南科技大学 | Heavy-duty dump truck hydraulic system and control method thereof |
| CN114215796A (en) * | 2021-09-26 | 2022-03-22 | 徐州徐工矿业机械有限公司 | Electro-hydraulic proportional pilot control lifting system of mining dump truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2511663Y (en) * | 2001-08-14 | 2002-09-18 | 同济大学 | Hydraulic electric fork lift |
| CN100577554C (en) * | 2006-04-19 | 2010-01-06 | 浙江佳力科技股份有限公司 | Full hydraulic electric forklift hydraulic system |
| CN201610873U (en) * | 2010-02-05 | 2010-10-20 | 泸州江阳长江液压科技有限公司 | Multifunctional highly-integrated multi-way valve |
| CN201971601U (en) * | 2010-10-31 | 2011-09-14 | 合肥搬易通科技发展有限公司 | Three-wheel drive four-way static pressure forklift truck hydraulic system |
| CN201962040U (en) * | 2011-02-21 | 2011-09-07 | 安徽合力股份有限公司 | Forklift hydraulic system with functions of priority and unloading |
| CN102979132A (en) * | 2012-11-16 | 2013-03-20 | 无锡汇虹机械制造有限公司 | Loader working equipment hydraulic system hydraulic cylinder speed adjusting method |
| CN203767958U (en) * | 2014-04-10 | 2014-08-13 | 安徽合力股份有限公司 | Hydraulic system for empty container stacking machine |
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