CN100400409C - Hydraulic self-balancing crane device - Google Patents

Abstract

The present invention relates to a crane, particularly to a hydraulic automatic balanced crane device realizing automatic counterbalance by hydraulic pressure. The present invention is characterized in that an included angle alpha of a rail (25) of a counterbalance cart and the horizontal line is from 15 to 20 degrees; a counterbalance cart (4) is connected with counterbalance wheels (16) which are in movable fit connection with the rail (25) of a counterbalance cart; the upper end part of a machine body (2) is connected with a breaker (13); the upper end of a piston rod (7) is connected with a roller (6) which is connected with a roller slide plate (32) of a hanging arm (3) in a rolling fit mode; a piston hydraulic cylinder (8) is connected with a piston hydraulic cylinder (10) by an oil tube (1.1); the piston hydraulic cylinder (10) is connected with the counterbalance cart (4) by bolts (18); a capstan engine (5) and a steel cable (12) which are arranged on the lower part of the machine body (2) are connected with a material box (23) by a pulley (19), a fixing pulley (20) and a hanging hook (22) in dynamic work. The present invention has the advantages of simple structure, low cost, safety, reliability, flexible operation, convention use, energy saving, short installation time and light weight, and can realize automatic balance for an object to be hung and the balanced crane.

Description

Hydraulic self-balancing crane device

Technical field:

The invention relates to a crane and a hoist, in particular to a hydraulic automatic balancing crane device which realizes the basic balance of a suspended object and a counterweight through hydraulic pressure.

Background technique:

At present, the commonly used lifting equipment mainly relies on its own weight (such as a car) or a fixed counterweight (such as a tower crane) to ensure that a certain weight is lifted. Even if there is a design idea of moving the counterweight and adjusting the distance, the mobile counterweight The most important thing is to rely on external force to achieve.

Invention content:

The purpose of the present invention is to provide a simple structure, low cost, safe and reliable, easy to use, the mechanical principle of the application of levers, the working principle of hydraulic transmission, with the help of the earth's gravity on the object, to realize the connection between the suspended object and the counterweight of the machine. The automatic balance is a hydraulic automatic balance crane device that leverages force. The purpose of the present invention is achieved like this: it comprises machine base, fuselage, boom, counterweight truck, winch, roller, piston rod, piston hydraulic cylinder, axle sleeve, plunger hydraulic cylinder, oil pipe, steel wire rope, breaker, Swivel wheels, universal wheels, counterweight wheels, thrust bearings, bolts, pulleys, fixed pulleys, brackets, hooks, material boxes, swivel wheel brackets, counterweight car tracks, reinforcing plates, circular tracks, I-beams, angle steels , steel plate, steel pipe, roller skateboard, sealing ring, dustproof ring, cylinder head, piston, cylinder block, oil hole, bolt hole, oil injection hole, liquid, plunger, gland. There is a thrust bearing between the machine base and the fuselage, which is fixedly connected by bolts. The fuselage and the boom are connected by the shaft on them through the bushing. One end of the counterweight car track is connected to the rotating wheel and the bracket through the rotating wheel bracket, and the other end is connected to the fuselage to form a triangle. The angle (α) between the counterweight car track and the horizontal line is 15-20°, and the counterweight The vehicle is connected with the counterweight wheel and the track of the counterweight vehicle in dynamic cooperation, the upper end of the fuselage is connected with a breaker, the upper end of the piston rod is connected with a roller, the roller is connected with the roller skateboard on the boom by rolling, and the piston hydraulic cylinder passes through the oil pipe. It is connected with the plunger hydraulic cylinder, the plunger hydraulic cylinder is connected with the counterweight truck through bolts, and the hoist and wire rope at the lower part of the fuselage are dynamically connected with the material box through pulleys, fixed pulleys and hooks. The present invention has the advantages of simple structure, low cost, safety and reliability, flexible operation, convenient use, and the ability to use force to make four or two shifts. Short installation time and low weight. Reduced the death and casualty rate until it was nonexistent.

Description of drawings:

Fig. 1 is a schematic diagram of the structural principle of the present invention; Fig. 2 is a top view schematic diagram of the structural principle of the machine base of the present invention; Fig. 3 is a schematic front view of the structural principle of the machine base of the present invention; Fig. 4 is a schematic front view of the structural principle of the fuselage of the present invention; Fig. 5 is Fig. 6 is a schematic side view of the principle of the boom structure of the present invention; Fig. 7 is a schematic diagram of the top view of the principle of the boom structure of the present invention; Fig. 8 is a schematic front view of the principle of the boom structure of the present invention; Fig. 9 is Fig. 10 is a schematic sectional view of the structure principle of the plunger hydraulic cylinder of the present invention. Machine base--1, fuselage--2, boom--3, counterweight truck--4, winch--5, roller--6, piston rod--7, piston hydraulic cylinder--8, bushing --9, plunger hydraulic cylinder --10, oil pipe --11, wire rope --12, electrical breaker --13, rotating wheel --14, universal wheel --15, counterweight wheel --16, thrust bearing --17, bolt --18, pulley --19, fixed pulley --20, bracket --21, hook --22, material box --23, rotating wheel bracket --24, counterweight car track -- 25. Strengthening plate--26, circular track--27, I-beam--28, angle steel--29, steel plate--30, steel pipe--31, roller skateboard--32, sealing ring--33, anti Dust ring--34, cylinder head--35, piston--36, cylinder body--37, oil hole--38, bolt hole--39, oil injection hole--40, liquid--41, plunger-- 42. Gland--43.

Detailed ways:

There is a thrust bearing 17 between the base 1 and the fuselage 2, which is fixedly connected by bolts 18, the fuselage 2 and the boom 3 are connected by the axle sleeve 9 on them, and the lower part of the fuselage 2 is connected with a counterweight truck 4 and a hoist 5 and the rotating wheel 14 that rotates 360° on the circular track 27, one end of the counterweight vehicle track 25 is connected with the rotating wheel 14 and the support 21 through the rotating wheel bracket 24, and the other end is connected with the fuselage 2 to form a triangle. The included angle α between the rail 25 and the horizontal line is 15-20°, the counterweight wheel 16 is connected to the counterweight vehicle rail 25 in dynamic cooperation with the counterweight vehicle 4, and the upper end of the fuselage 2 is connected with the breaker 13 and the piston rod 7. The upper end is connected with a roller 6, and the roller (6) is rollingly connected with the roller skateboard 32 on the boom 3. The piston hydraulic cylinder 8 is connected to the plunger hydraulic cylinder 10 through the oil pipe 11, and the plunger hydraulic cylinder 10 is connected to the counterweight truck through the bolt 18. 4 is connected, the winch 5 of fuselage 2 bottoms, steel wire rope 12 are connected through pulley 19, fixed pulley 20, suspension hook 22 and material box 23 dynamic work. Hydraulic working process: When the piston of the piston hydraulic cylinder moves downward under the action of gravity, the liquid enters the cylinder body of the plunger hydraulic cylinder through the oil hole and oil pipe, pushes the plunger to move, and pushes the counterweight car to move on the track through the plunger. Move back to achieve the purpose of balancing the weight of the suspended object. The working process of the present invention: when the winch rotates counterclockwise, the wire rope is pulled, and the material box is lifted by the fixed pulley. Due to the weight of the suspended material box itself, the front end of the boom moves up and down, pressing the hydraulic cylinder piston to move down, and the force is transmitted to the plunger hydraulic cylinder through the liquid, and the plunger is pushed to move the counterweight truck backward until the material box Keep balance with the counterweight. The material box starts to be hoisted, and when it is hoisted to a certain height, the body can be rotated 360° by hand. After unloading the material box, the counterweight truck returns to its original position under the action of the inclined plane, and still through the transmission of liquid force, the boom, breaker and winch stop working, and some objects are removed, so that the total weight of the suspended objects is equal to or When the weight is lower than the rated weight, the boom is raised and the breaker is reset, the power is turned on, and the hoist resumes power supply and works normally.

Turn the winch in the opposite direction, the object is put down, and under the action of the gravity slope, the counterweight box returns to its original position. When the weight of the hoisted object is greater than the rated weight, the counterweight box goes to the travel switch, pushes the travel switch, and the hoist is powered off. When part of the hoisted object is removed and the total weight of the object is equal to or lower than the rated weight, the limit switch is turned on, and the hoist resumes power supply and works normally. The utility model relates to the weight of the object, the natural slide of the object on the slope and the resistance to be overcome when the object moves on the slope. Compared with the traditional crane, the utility model improves the working efficiency. Taking a 0.5-ton crane as an example, it can save 10 labors in loading and unloading goods by car, and save 20-50 labors in construction sites. Safe and reliable. The counterweight and hoist are designed to the lower part of the whole machine by this machine, which greatly improves the stability and safety of the equipment.

Claims (1)

1. hydraulic automatic balanced crane installment, it comprises support (1), fuselage (2), arm (3), weight vehicle (4), winch (5), roller (6), piston rod (7), piston hydraulic cylinder (8), axle sleeve (9), plunger piston fluid pressure cylinder (10), oil pipe (11), steel rope (12), cutout relay (13), revolving wheel (14), cardan wheel (15), counterweight wheel (16), thrust baring (17), bolt (18), pulley (19), fixed pulley (20), support (21), suspension hook (22), hopper (23), revolving wheel support (24), weight vehicle track (25), brace panel (26), circuit orbit (27), I-beam section (28), angle steel (29), steel plate (30), steel pipe (31), roller sliding plate (32), seal ring (33), dust ring (34), cylinder cap (35), piston (36), cylinder body (37), oilhole (38), bolt hole (39), oil hole (40), liquid (41), plunger (42), gland (43), it is characterized in that: have thrust baring (17) to captive joint between support (1) and the fuselage (2) through bolt (18), fuselage (2) is connected by the beam warp axle sleeve (9) on them with arm (3), the bottom of fuselage (2) is connected with weight vehicle (4), winch (5) and at the revolving wheel (14) of the last 360 ° of rotations of circuit orbit (27), weight vehicle track (25) one ends are through revolving wheel support (24) and revolving wheel (14), support (21) connects, the other end is connected with fuselage (2), constitute triangle, weight vehicle track (25) is 15-20 ° with horizontal angle (α), being connected with counterweight wheel (16) on the weight vehicle (4) is connected with weight vehicle track (25) running-fit, fuselage (2) upper end is connected with cutout relay (13), the upper end of piston rod (7) is connected with roller (6), roller sliding plate (32) on roller (6) and the arm (3) rolls and is connected, piston hydraulic cylinder (8) is connected with plunger piston fluid pressure cylinder (10) through oil pipe (11), plunger piston fluid pressure cylinder (10) is connected with weight vehicle (4) through bolt (18), the winch (5) of fuselage (2) bottom, steel rope (12) is through pulley (19), fixed pulley (20), suspension hook (22) is connected with hopper (23) dynamic duty.

Images