CN2832775Y

CN2832775Y - Anti-falling device for carrying platform of stacker crane

Info

Publication number: CN2832775Y
Application number: CN 200520014957
Authority: CN
Inventors: 卓序
Original assignee: DEMA MATERIALS CIRCULATING SYSTEM ENGINEERING Co Ltd HUZHOU CITY
Current assignee: DEMA MATERIALS CIRCULATING SYSTEM ENGINEERING Co Ltd HUZHOU CITY
Priority date: 2005-09-14
Filing date: 2005-09-14
Publication date: 2006-11-01
Anticipated expiration: 2015-09-14

Abstract

The utility model relates to an anti-falling device for a carrying platform of a stacker crane, which is composed of a braking mechanism arranged between two hanging columns on the same side of the carrying platform, a braking starting mechanism and a vertical braking rail fixed on the inner lateral surface of a crane frame column, wherein the braking mechanism is provided with a pair of braking wheel shafts arranged on a braking wheel shaft seat; a pair of eccentric braking wheels arranged on one end of each braking wheel shaft are positioned on both sides of the vertical braking rail, and the other end of each braking wheel shaft is connected with a linking plate. The braking starting mechanism is provided with a screw rod of which the upper end is connected to a driving chain of the carrying platform; the screw rod downward passes through a crossbeam hole of a hanger rod, a spring and a reverse T column hollow spring seat sheathed in the hole, and is connected with a connecting plate connected with a push rod below. The utility model has the advantages of simpler structure, low cost and high safety.

Description

The loading platform anti-fall device of stakcer crane

Technical field

The utility model belongs to the safety device of hoisting crane, particularly relates to stakcer crane and be used for a kind of device of keeping the load suspender member not drop under its chain or wire cable rupture situation.

Background technology

Aisle stacking crane is a kind of high speed weight-lifting equipment, be mainly used in automatic stereowarehouse input, output goods, be characterized in that lifting altitude height, hoisting capacity are big, the loading platform rising or falling speed is fast, therefore prevent that loading platform from falling in the work, guarantee that safety in operation is very important.At present, the anti-dropping safety device of relevant hoisting crane has multiple structures such as electromagnetic type, electromechanical, but most complex structure, the cost height.

Summary of the invention

The purpose of this utility model provides a kind of safe and reliablely, and structure is simpler, and manufacturing cost is lower, is particularly useful for the loading platform anti-fall device of stakcer crane.

Technical solution of the present utility model is: it is formed with the stop mechanism between avris two davits, brake actuating mechanism and the vertical braking rail that is fixed in hoisting crane framework pillar medial surface by being installed on loading platform, its stop mechanism have below the davit crossbeam, be fixed in the brake wheel axle bed between two davits, a pair of brake axle on even keel passes the brake wheel axle bed, the one end is respectively equipped with eccentric brake wheel, two eccentric brake wheels just in time are positioned at the both sides of vertical braking rail, and the other end of brake axle respectively is connected with an interlock plate; Brake actuating mechanism has the screw rod that the upper end is connected with the loading platform messenger chain, be connected with a connecting panel behind the spring that this screw rod lower ends downward is passed socket in suspension rod crossbeam hole and the hole and the cylindricality of the falling T hollow projectile cartridge spring abutment, the hole upper oral part of davit crossbeam is provided with spring limiting board, above-mentioned screw rod connecting panel is connected with the horizontal push of its below again simultaneously, and the horizontal push two ends are connected with two interlock plates of below stop mechanism by extension spring.

Stakcer crane is in service in work, in case the messenger chain fracture takes place, the screw rod of brake actuating mechanism promptly loses pulling force, originally hung the spring that tension and compression are contracted by screw rod and the cylindricality of falling T hollow projectile cartridge spring abutment, this moment, release spring power made the screw rod that connects together, spring perch, connecting panel and push rod move downward fast, and then two interlock plates of promotion stop mechanism, the left avertence heart brake wheel of stop mechanism is rotated counterclockwise, right avertence heart brake wheel clockwise rotates, be clamped on the vertical braking rail of hoist frame column medial surface, and because the action of gravity of loading platform, eccentric brake wheel presss from both sides tighter and tighter to braking rail about making, thereby prevents that reliably loading platform from falling.

The utility model structure is simpler, and cost is low, and is safe and reliable.

Description of drawings

Fig. 1 is for being equipped with stakcer crane perspective view of the present utility model.

Fig. 2 is the hoisting crane loading platform perspective view that stop mechanism of the present utility model and brake actuating mechanism are installed.

Fig. 3 is the three-dimensional decomposition texture scheme drawing of stop mechanism of the present utility model.

Fig. 4 is the three-dimensional decomposition texture scheme drawing of brake actuating mechanism of the present utility model.

Fig. 5 is that perspective view is amplified by the A portion of Fig. 2.

Fig. 6 is the B-B cutaway view of Fig. 1.

The specific embodiment

The utility model is described in further detail with embodiment below in conjunction with accompanying drawing.

Stop mechanism 7 is to be installed on the brake wheel axle bed 15 and to constitute by bearing part 16, jump ring 18 on even keels by a pair of brake axle 13, and an end of two brake axles 13 is respectively equipped with eccentric brake wheel 12, and the other end is provided with tenon protruding 14 and respectively connects a fan-shaped interlock plate 17; Brake wheel axle bed 15 firmly is welded between loading platform davit crossbeam 11 belows, two davits 4, vertical braking rail 6 two sides that column 2 medial surfaces that make two eccentric brake wheels 12 just in time be close to hoisting crane frame 1 are fixed.Brake actuating mechanism 9 has the screw rod 19 that the upper end is connected with the messenger chain 5 of loading platform 3, offer the hole of the cylindricality of the falling T hollow projectile cartridge spring abutment 22 of the built-in spring 21 of socket on the davit crossbeam 11, and be provided with spring limiting board 20 at the hole upper oral part, screw rod 19 lower ends downward are passed suspension rod crossbeam 11 and spring 21, spring perch 22 backs are connected with connecting panel 23, and connecting panel 23 is connected with the horizontal push 24 of its below simultaneously, and horizontal push 24 two ends are connected with the fan-shaped interlock plate 17 of below stop mechanism by extension spring 8 respectively.Below davit crossbeam 11, travel switch 10 is installed in addition by the adapter plate 25 that is fixed on davit one side, the trip switch 10 is at hoisting crane normally in the operation work, owing to the roof pressure of the cylindricality of falling T hollow projectile cartridge spring abutment 22 seat boards of brake actuating mechanism 9 makes its closure; In case the messenger chain fracture, spring perch 22 descends, and travel switch 10 loses roof pressure power and automatic cutout, and system promptly cuts off the power supply, and further guarantees security of system.Also have, eccentric brake wheel 12 is taken turns and is shaped on the friction line on the side face, to strengthen drag friction power.

Claims

1, a kind of loading platform anti-fall device of stakcer crane, it is characterized in that it is by being installed on loading platform (3) with the stop mechanism (7) between avris two davits (4), brake actuating mechanism (9) and the vertical braking rail (6) that is fixed in hoisting crane framework pillar (2) medial surface are formed, its stop mechanism (7) has the davit of being positioned at crossbeam (11) below, be fixed in the brake wheel axle bed (15) between two davits (4), a pair of brake axle (13) on even keel passes brake wheel axle bed (15), the one end is respectively equipped with eccentric brake wheel (12), and two eccentric brake wheels (12) just in time are positioned at the both sides of vertical braking rail (6), the other end of brake axle (13) respectively is connected with an interlock plate (17), brake actuating mechanism (9) has the screw rod (19) that the upper end is connected with loading platform messenger chain (5), the spring (21) that screw rod (19) lower ends downward is passed socket in the hole of davit crossbeam (11) and the hole is connected with a connecting panel (23) with the cylindricality of falling T hollow projectile cartridge spring abutment (22) back, the hole upper oral part of davit crossbeam (11) is provided with spring limiting board (20), screw rod connecting panel (23) is connected with the horizontal push (24) of its below again simultaneously, and horizontal push (24) two ends are connected with two interlock plates (17) of below stop mechanism by extension spring (8).

2,, it is characterized in that being arranged in davit crossbeam (11) below one side and be equipped with in normal operation and make its closed travel switch (10) by the seat board roof pressure of the cylindricality of the falling T hollow projectile cartridge spring abutment (22) of brake actuating mechanism by the loading platform anti-fall device of the described stakcer crane of claim 1.

3,, it is characterized in that being shaped on the friction line on eccentric brake wheel (12) the wheel side face by the loading platform anti-fall device of the described stakcer crane of claim 1.