CN2097198U

CN2097198U - Automatic hydraulic level-regulating device for container sling

Info

Publication number: CN2097198U
Application number: CN 90224130
Authority: CN
Inventors: 王希宁; 刘乐元
Original assignee: WATER TRANSPORT SCIENCE INST MINISTRY OF COMMUNICATIONS
Current assignee: WATER TRANSPORT SCIENCE INST MINISTRY OF COMMUNICATIONS
Priority date: 1990-11-26
Filing date: 1990-11-26
Publication date: 1992-02-26

Abstract

The utility model relates to an automatic hydraulic level-regulating device for a container sling. A displacement detector on the sling can timely detect the gradient between the upper body and the lower body of the sling and transmit a signal to a hydraulic valve according to the setting proportion of a feedback proportion regulator. Thus, the opening of the valve is directly proportional to a turning angle. Therefore, the liquid discharged from a hydraulic power source is directly proportional to the size of the opening. The liquid flows into or out of a hydraulic pressure cylinder. A sliding frame and the container are pushed for realizing automatic leveling by the motion of the hydraulic pressure cylinder. The device has manual and automatic two level-regulating methods. Moreover, the device can be automatic locked and stopped after the level regulation. The utility model has the advantages of low cost, simple structure, and convenient installation and regulation. The utility model can also be used for other occasions that two or more components with hydraulic power sources are required to be oppositely leveled in automatic regulation besides container slings.

Description

Automatic hydraulic level-regulating device for container sling

The utility model belongs to the loading-unload machine class, is used to adjust parallel between container spreader upper body and the lower body.

Adjust at present both at home and abroad parallel method between container spreader upper body and the lower body, hand adjustment and utilization " U " shape pipe is arranged, detect two kinds of the automatic compensations of parallel error as horizontal level sensor.Introduced the product that has horizon sensor in the specification sheets of external container spreader.Domestic Hebei province Zhuozhou Huabei New Type Building Material Machinery Factory has also manufactured experimently out the container spreader that band " U " shape is managed horizontal level sensor, makes a service test in harbour, Shanghai machine works at present.Also produce UFC type magnetic floating drum liquid level meter in the Beijing Fourth Automation Instrument Factory and can be used to horizon sensor as container spreader.The horizontal liquid level sensor that this " U " shape pipe is done can only just can be detected at the parallel accumulation of error behind certain value.So can not eliminate error fully, can not proofread and correct parallel error at any time, and error is kept within the specific limits, and the disadvantage that produces vibration because of sensitivity is too high is arranged.

The object of the present invention is to provide a kind of simple in structurely, easy for installation, cheap, can eliminate the parallel error between suspender upper body and the lower body at any time automatically, and can be after error concealment the container sling hydraulic pressure automatic leveling device of auto lock and shutdown.

The purpose of this utility model can reach by following measure: by hydraulic valve, control flows into and flows out the liquid of hydraulic actuating cylinder, realizes driving hydraulic actuating cylinder by hydraulic efficiency power unit, and the movable hanger balladeur train is eliminated the relative rotation between suspender upper body and the lower body.Displacement detector can be automatically that it is measured at any time the suspender upper body and the relative angular displacement signal between the lower body, the ratio of being set up according to the feedback proportional regulating control, pass to hydraulic valve, make the opening of hydraulic valve be proportional to angular transposition, thereby the liquid that hydraulic efficiency power unit is discharged, by hydraulic valve, and flow into pro rata with its openings of sizes and flow out hydraulic actuating cylinder.Move by the freight container on cylinder pushes suspender balladeur train and the balladeur train, change the center-of-gravity position elimination suspender upper body of suspender lower body and the relative angular displacement between the lower body.When this angular transposition was zero, start stop lever can make the hydraulic efficiency power unit off-load or stop power output by switch, and by hydraulic lock, the relative position between suspender lower body and the balladeur train is remained unchanged.

The purpose of this utility model can also reach by following other measures: the control lever of displacement detector or hydraulic valve makes that length can telescopic adjustment, plays the function of regulating feedback proportional; Displacement detector also can be used flexible material and assembly pulley, the relative angular displacement between detection upper body and the lower body or the opening of modulated pressure valve; Hydraulic valve can be a side valve type, also can be steering valve.

The drawing of accompanying drawing is described as follows: Fig. 1 is the scheme of installation of this device on suspender, rotating head 1, hoisting wirerope 2, a Hanging roller 3, displacement detector 4, hydraulic valve 5, feedback proportional regulating control 6, freight container 7, suspender balladeur train 8, hydraulic actuating cylinder 9, suspender lower body 10, switch 11, start stop lever 12, suspender upper body 13.

Fig. 2 is the hydraulic schematic diagram of this device, fuel tank 14, oil filter 15, motor 16, hydraulic efficiency power unit 17, automatic bidirectional hydraulic lock 18, manual bidirectional hydraulic lock 19, hand-hydraulic valve 20, compression indicator 21, manual automated manner selector valve 22, by pass valve 23.

The utility model is described in further detail below in conjunction with accompanying drawing embodiment: the utility model adopts the hydraulic pressure Automatic Control Theory, freight container 7 is locked on the suspender balladeur train 8, the suspender balladeur train can be by being fixed on the hydraulic actuating cylinder 9 above it, moves back and forth along the guide rail of suspender lower body 10.A displacement detector 4 and start stop lever 12 are installed on the suspender upper body 13.Suspender upper body 13 connects by hinge and suspender lower body 10, the feedback proportional regulating control 6 and the switch 11 of adjustable positions are housed on the suspender lower body 10, hydraulic valve 5 is installed on the feedback proportional regulating control, and connects by the justice of dialling on control lever on it and the displacement detector 4.

Freight container 7 centers of gravity of being hung when suspender balladeur train 8 are positioned at right side, suspender lower body center, or because other reasons, suspender lower body 10 relative suspender upper bodies 13 are clockwise rotated around its hinge, when making the right side of suspender lower body downward-sloping, group justice on the displacement detector 4 can be by the size of suspender lower body inclined degree, or the size of not parallel degree between suspender upper body 13 and the lower body 10, stir the control lever on the hydraulic valve 5, the spool of hydraulic valve 5 is moved down, the liquid that hydraulic efficiency power unit 17 is discharged can be when manually automated manner selector valve 22 be in auto state, through hydraulic valve 5, thereby and enter the freight container 7 that the piston-rodless end of hydraulic actuating cylinder 9 promotes on balladeur train 8 and the balladeur train by automatic bidirectional hydraulic lock 18 pro rata with its openings of sizes and be moved to the left, the freight container center of gravity is moved to the left gradually, and the suspender lower body is rotated counterclockwise around hinge, move to the center of suspender lower body 10 until the freight container and the center of gravity of balladeur train and to become a plumb bob vertical, when suspender upper body 13 and lower body 10 are parallel till.Meanwhile, displacement detector 4 is also stirred the control lever of hydraulic valve 5 gradually, the opening of hydraulic valve 5 is reduced gradually, until closing fully.This moment, hydraulic actuating cylinder 9 no longer included the liquid turnover, and by 18 pinnings of automatic bidirectional hydraulic lock, start stop lever 12 is after the leveling process finishes, touch switch 11, make hydraulic efficiency power unit 17 off-loads or stop power output, when the center of gravity of freight container 7 and balladeur train 8 was positioned at the left side of suspender lower body 10, its automatic levelling principle was same as described above, but the sense of motion of each levelling member is opposite.

Regulate feedback proportional regulating control 6 and the interaxle distance of hinge, can realize the adjusting of feedback proportional.Increase away from the hinge ratio feedback signal, reduce self-levelling settling time, near then traverse time increase of hinge.

The utility model also can be used for such as on the self-leveling equipment of some needs of building machinery. Its advantage is:

1, can realize at any time automatically regulating continuously;

2, simple in structure, install easily, easy to adjust;

3, need not change the suspender original structure;

4, cost is low.

Claims

1, a kind of liquid that flows into and flow out hydraulic actuating cylinder by hydraulic valve control, realization drives hydraulic actuating cylinder by hydraulic efficiency power unit, the movable hanger balladeur train, eliminate the container spreader automatic leveling device of the relative rotation between suspender upper body and the lower body, it is characterized in that: suspender upper body (13) that displacement detector (4) can be momentarily measured with it automatically and the relative angular displacement signal between the lower body (10), the ratio of being set up according to the feedback proportional regulating control, pass to hydraulic valve (5), make the opening of hydraulic valve be proportional to angular transposition, thereby the liquid that hydraulic efficiency power unit (17) is discharged, by hydraulic valve (5), and flow into pro rata with its openings of sizes and flow out hydraulic actuating cylinder (9), the freight container (7) that promotes on suspender balladeur train (8) and the balladeur train by hydraulic actuating cylinder (9) moves, eliminate the relative angular displacement between suspender upper body and the lower body, when this angular transposition is zero, start stop lever (12) can pass through switch (11), make hydraulic efficiency power unit (17) off-load or stop power output, and by hydraulic lock (18), relative position between suspender lower body (10) and the balladeur train (8) is remained unchanged, feedback proportional regulating control (6) can be regulated the displacement signal that inputs to hydraulic valve (5), hydraulic valve (20) is used for manual leveling, and hydraulic valve (22) is used for manual leveling and the transformation of leveling dual mode automatically.

2, container spreader automatic leveling device according to claim 1 is characterized in that: the control lever of displacement detector (4) or hydraulic valve (5) makes that length can telescopic adjustment, plays the function of regulating feedback proportional;

3, container spreader automatic leveling device according to claim 1 is characterized in that: displacement detector (4) flexible material and assembly pulley, the relative angular displacement between detection upper body and the lower body or the opening of modulated pressure valve (5);

4, container spreader automatic leveling device according to claim 1 is characterized in that: hydraulic valve (5) can be a side valve type, also can be steering valve.