CN103910311A - Hydraulic system of empty container stacking locomotive - Google Patents
Hydraulic system of empty container stacking locomotive Download PDFInfo
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- CN103910311A CN103910311A CN201410140865.8A CN201410140865A CN103910311A CN 103910311 A CN103910311 A CN 103910311A CN 201410140865 A CN201410140865 A CN 201410140865A CN 103910311 A CN103910311 A CN 103910311A
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Abstract
The invention provides a hydraulic system of an empty container stacking locomotive. The hydraulic system comprises circulating oil circuits. Hydraulic oil in an oil tank is led into an integrated multi-way valve by dual-gear pumps, and hydraulic oil in the integrated multi-way valve is respectively supplied into lifting cylinders, tilting cylinders and a steering cylinder by the aid of a pilot control handle, so that the respective circulating oil circuits can be formed; the oil tank is connected with a gear pump, an output end of the gear pump and an output end of the pilot control handle are connected with inlet ends of a quick lifting valve bank, and an outlet end of the quick lifting valve bank is connected with the lifting cylinders by a first backpressure check valve; the lifting cylinders are connected with an emergency descending valve by speed limit valves, and an electromagnetic valve of the emergency descending valve is connected with a manual switch by an electric wire; the tilting cylinders are connected with direct-acting overflow valves, and the integrated multi-way valve is connected with the tilting cylinders and the direct-acting overflow valves respectively, so that circulating oil circuits can be formed. The hydraulic system has the advantages that tilting, steering and lifting functions and the like can be integrated, so that pipeline arrangement can be reduced, the work safety of lifting appliances can be improved, and the gantry lifting speed can be increased.
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 of work such as the piling up of empty container, transition transportation of specializing in, what empty container piling crane car owner will realize door frame by hydraulic efficiency pressure system tilts forward and back hoisting and handling maneuver, the oil supply function of suspender etc. of down maneuver, car load of action, 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 pressure component is design arranged apart, there is following shortcoming in this system: the one, and the hydraulic efficiency pressure system component of empty container piling crane car is many, the functions such as it tilts, turn to, lifting separately arrange, piping layout complexity, maintenance inconvenience and cost are high; The 2nd, because oil circuit is long, fuel feeding is few, make the door frame lifting velocity of empty container piling crane car slow; The 3rd, poor safety performance; The 4th, the tiny iron filings in hydraulic reservoir cannot effectively be collected; The 5th, when the fully loaded fast-descending of door frame in hydraulic reservoir liquid level sharply variation meeting alter outward oil 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, move rapidly.
Technical scheme of the present invention is: a kind of hydraulic efficiency pressure system of empty container piling crane car, comprise by duplex gear pump hydraulic oil in fuel tank is imported in integrated multipath valve, then by pilot control handle, the hydraulic oil in integrated multipath valve is supplied with respectively and in lift oil tank, dump ram and steering cylinder, formed circulating oil path separately; 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 straight moving by pass valve, and described integrated multipath valve is respectively with dump ram, directly moving by pass valve is connected to form circulating oil path.
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 the second back pressure check valve, radiator is all connected with fuel tank.
Main return filter and oil tank breather are installed on described fuel tank, 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, on the oil circuit between guide's control handle and integrated multipath valve, be provided with two-bit triplet electromagnetic valve, realize the oil circuit between integrated multipath valve and suspender is controlled to break-make, so that guarantee under operational circumstances also not can be toward suspender fuel feeding, thereby improve suspender job security.
3, duplex gear pump is supplied with lift oil tank by integrated multipath valve by hydraulic oil, gear type pump supplies separately hydraulic oil to lift oil tank by fast lifting valve group simultaneously, be that duplex gear pump and gear type pump supply hydraulic oil to lift oil tank simultaneously, thereby reach door frame fast lifting function, door frame lifting velocity has promoted 16%, thereby has improved operating efficiency.In addition, in the time that lift oil tank is not worked, the fluid that gear type pump is supplied with fast lifting valve group directly flow through back pressure check valve and radiator, carry out auxiliary heat dissipation to whole hydraulic efficiency pressure system.
4, the electromagnetic valve of forced landing valve is electrically connected with hand switch, in the time that hydraulic efficiency pressure system has fault, can opens by hand switch the electromagnetic valve of forced landing valve, 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 be controlled the descending speed of door frame, makes door frame drop to ground by safety and steady.
5,, because oil tank breather below is provided with gear oil screen, in the time of the fully loaded fast-descending of door frame, the spilled oil situation of effectively avoiding fuel tank to cause because liquid level sharply changes, prevents that fluid from spilling from oil tank breather.
6, because fuel tank bottom is provided with magnet, magnet can adsorb the tiny iron filings in fluid, thereby the metal swarf in fuel tank has been realized to efficient collection, and reduces the impact on the hydraulic pressure component life-span of iron filings in fluid.
7, because dump ram is connected with straight moving by pass valve, wherein directly moving 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 hydraulic oil in dump ram is while flowing to straight moving by pass valve, directly the by pass valve in moving by pass valve works, and directly the unlatching control presssure of the by pass valve in moving 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-is moving by pass valve directly, 12-the first back pressure check valve, 13-deflector, 14-steering cylinder, 15-oil tank breather, 16-keeps off oil screen, 17-check valve, 18-the 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-.
The specific embodiment
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 below 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 by the P3 mouth of check valve 17 and deflector 13, T3 mouth in deflector 13 is connected with fuel tank 1 by main return filter 25, and the L of deflector 13 is connected with two hydraulic fluid ports of steering cylinder 14 respectively with R mouth.T1 on integrated multipath valve 4, T2 mouth by main return filter 25 be connected with fuel tank 1, N mouth connects with energy storage 5, Q mouth is connected with the P6 mouth on P4 mouth, two-bit triplet electromagnetic valve 22 on pilot control handle 3 respectively; After being connected with the T4 mouth on pilot control handle 3, T6 mouth on two-bit triplet electromagnetic valve 22 is connected with fuel tank 1; A4 mouth on pilot control handle 3 is connected with the H mouth in D2 mouth, fast lifting valve group 9 on integrated multipath valve 4 respectively, and B4, A5, B5 mouth on pilot control handle 3 are 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 respectively with two lift oil tanks 7 of E mouth 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, between M mouth in fast lifting valve group 9 and K mouth, be communicated with, 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, the oil outlet end of the second back pressure check valve 18 and radiator 20 is connected with fuel tank 1 by main return filter 25.A2, B2 mouth on integrated multipath valve 4 are connected with the rodless cavity of two dump rams 10, the X mouth of two straight moving by pass valves 11 respectively, and directly the Y mouth of moving by pass valve 11 is connected with the rod chamber of dump ram 10; Corresponding hydraulic fluid port on A3 on integrated multipath valve 4, the suspender that B3 mouth connects container stacking machine.
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 be supplied with fast lifting valve group 9 and integrated multipath valve 4 by corresponding pipeline.
In the time that empty container piling crane car needs door frame tilting action, navigating mate manipulation pilot control handle 3, it is the guide oil of 3.5Mpa that Q mouth on integrated multipath valve 4 provides pressure toward the P4 mouth on pilot control handle 3, the A5 of pilot control handle 3 or B5 mouth are to D3 or the D4 confession oil 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, realizing oil circuit switches, then by the B2 on integrated multipath valve 4 or A2 mouth toward the rodless cavity of dump ram 10 or the X confession oil of moving by pass valve 11 directly, wherein enter the fluid rod chamber fuel feeding toward dump ram 10 by Y mouth again of straight moving by pass valve 11, to realize the action that tilts forward and back of empty container piling crane car door frame, to complete smoothly the work of stacking container casing.When fluid in straight moving by pass valve 11 flows from X toward Y, directly moving by pass valve 11 one-way conductions, directly the by pass valve in moving by pass valve 11 is inoperative; When fluid in straight moving by pass valve 11 flows from Y toward X, directly the by pass valve in moving by pass valve 11 works, and directly the unlatching control presssure of the by pass valve in moving by pass valve 11 is 14Mpa, carries out forward swing to control door frame pulsation-free, effectively prevents the shake of door frame.
In the time that empty container piling crane car needs door frame need to hoist action, manipulation pilot control handle 3, while making A4 on it, B4 mouth toward the guide's hydraulic fluid port D1 on integrated multipath valve 4, D2 fuel feeding, promote the main valve plug work that hoists on integrated multipath valve 4, F mouth by governor valve 6, toward lift oil tank 7 fuel feeding, is realized the action that hoists of door frame; The A4 mouth while on pilot control handle 3 is 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 gear type pump 21 is exported will be 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 has promoted approximately 16 ﹪.When door frame declines by deadweight, at this moment governor valve 6 is controlled the flowing velocity of hydraulic oil, thereby controls the descending speed of door frame.
When complete machine hydraulic efficiency pressure system et out of order and freight container is also in door frame when high-order, can open the electromagnetic valve in forced landing valve 8 by hand switch 2, fluid in lift oil tank 7 is entered to fuel tank 1 by forced landing valve 8, in addition, in forced landing valve 8, flow regulating valve also can effectively be controlled the descending speed of door frame, until freight container is put into safely behind ground, just can carry out upkeep operation to hydraulic efficiency pressure system.
In the time that empty container piling crane car door frame does not hoist action, the fluid that gear type pump 21 is supplied with fast lifting valve group 9 directly flow through the second back pressure check valve 18 and radiator 20, when oil temperature is higher than setting value during as 55 ℃, coolant-temperature switch 19 is controlled the blower fan work on radiator 20, give in real time the fluid heat radiation of the radiator 20 of flowing through, fluid enters in fuel tank 1 after finally flowing to and filtering out the impurity in fluid in main return filter 25.Therefore the effect of gear type pump 21 has two: the one, realize the fast lifting of door frame, the 2nd, realize the auxiliary heat dissipation of whole hydraulic efficiency pressure system.
In the time that empty container piling crane car will be realized handling maneuver, navigating mate steering dish, the LS mouth of at this moment deflector 13 can be opened the pressure-gradient control valve in integrated multipath valve 4 to pressure signal of the LSO mouth of integrated multipath valve 4, by O mouth on integrated multipath valve 4, check valve 17 toward the P3 confession oil in deflector 13, its charge oil pressure is 17.5Mpa, then fluid is supplied with steering cylinder 14 by the L mouth in deflector 3, R mouth, realizes the handling maneuver of car load; Fluid unnecessary in deflector 3 is back to fuel tank 1 through T3 mouth, and in the time that 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 is all supplied with lift oil tank, dump ram or suspender action; By the A3 on integrated multipath valve 4, B3 mouth, toward suspender fuel feeding, and two-bit triplet electromagnetic valve 22 can realize the on-off of guide oil hydraulic control system, to guarantee also can, toward suspender fuel feeding, not guarantee the safety of suspender work in maloperation situation.
In the time that empty container piling crane car everything is not worked, the fluid that gear type pump 21 and duplex gear pump 23 are supplied with hydraulic efficiency pressure system is all back to fuel tank 1, has so just 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 by duplex gear pump (23) hydraulic oil in fuel tank (1) is imported in integrated multipath valve (4), then by pilot control handle (3), the hydraulic oil in integrated multipath valve (4) is supplied with respectively to lift oil tank (7), dump ram (10) and the interior circulating oil path separately that forms of steering cylinder (14); 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 straight moving by pass valve (11), and described integrated multipath valve (4) is respectively with dump ram (10), directly moving by pass valve (11) is connected to form circulating oil path.
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) is connected to form circulating oil path with integrated multipath valve (4), 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 the 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: main return filter (25) and oil tank breather (15) are installed on described fuel tank (1), 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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| 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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| 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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| CN103910311B CN103910311B (en) | 2016-01-13 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106082038A (en) * | 2016-08-13 | 2016-11-09 | 安徽合力股份有限公司 | A kind of fool proof forklift hydraulic system |
| CN106904558A (en) * | 2017-04-18 | 2017-06-30 | 安徽合力股份有限公司 | A kind of heavy forklift sling hydraulic pressure control system |
| CN108657049A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Lift cooling combined system and vehicle |
| 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 |
| CN112721773A (en) * | 2020-12-30 | 2021-04-30 | 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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| 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 |
| CN111547648B (en) * | 2020-04-24 | 2024-05-03 | 安徽合力股份有限公司 | Hydraulic system for load maintenance of stacker |
| CN111547648A (en) * | 2020-04-24 | 2020-08-18 | 安徽合力股份有限公司 | Stacker load holding hydraulic system |
| CN112721773A (en) * | 2020-12-30 | 2021-04-30 | 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 |
| CN114215796B (en) * | 2021-09-26 | 2024-08-06 | 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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