SU1439069A1 - Limiter of deviation angle of crane load tackle - Google Patents

Abstract

The invention relates to a lifting and transport equipment, namely, to the limiters of the angle of deviation of the cargo hauling tackles. The purpose of the invention is to ensure reliability. The rollers 1 interact with the rope 2 of the chain hoist and are connected via switches 12 to the switches 11. When the cable is deflected 2 rollers 1 through the pusher 12 act on the switch 11. 1 C.Pf-ly, 3 1Ш.

Description

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The invention relates to an overhead transport equipment, in particular, to limiters of the angle of deviation of the truck-mounted hawkes of cranes.

The purpose of the invention is to increase reliability,

Fig. I shows the limiter of deflection angle of the crane hoist, the general view; Fig 2 is the same, top view; on fig.Z - pusher limiter, about 1

The angle limiter of the cargo tackle of the crane contains guide rollers 1, located with in a horizontal plane on both sides of the rope 2 of the cargo tackle parallel to each other and mounted on axles 3 connected to each other by means of t 4, Axis 3 are mounted on directions 5 of the casing 6 of the limiter by means of the running rollers 7e. The casing 6 is led to the foot of the boom 8 of the crane by means of brackets 9, which can be connected by means of the axis 10 ,. The loops 11 are installed in the housing 6 and electrically connected to the crane control circuit. Control elements for interaction with switches include., Podprudannye pushers 12 installed horizontally in housing 6 on either side of rollers 1 "Pusher 12 is hollow and equipped with a bark 13, on which electromagnets 14 are mounted and fixed on the pusher 12 and Armature 13 is made with ring grooves 16 and 17, one of which is partially located elastic element 18, mounted on the pusher 12.

The limiter works as follows

When the rope 2 is tilted, it moves the carriage formed by the rollers 1, axes 3 with t 4 and the rollers 7. The pusher 12 moves

20

25

35

40

45

with

0

five

five

0

five

and operates the switch 11, which stops the operation of the crane,

For a discrete change in the maximum permissible deflection angle, one of the electromagnets 14, 15 is energized, while the measles 13 are moved and fixed by the element 18. The armature 13 interacts with the switch 11,

Claims (1)

1. A limiter of deflection angle of a cargo tackle crane, containing a body, guide rollers located in a horizontal plane on both sides of the rope of a cargo tackle parallel to each other and mounted on axles connected to each other by means of t, and insulated switches located in housing with the ability to interact with control elements and connected to the control circuit of the crane, distinguishes u and. so that, in order to increase reliability, the body of the limiter is made with guides, and the axes of the rollers are equipped with road rollers, through which they are mounted on guide bodies, and the control elements are made in the form of spring-loaded tappets mounted horizontally in both sides of the guide rollers, 2 о. A limiter in accordance with claim 1, characterized in that it is provided with electromagnets, and each pusher is made hollow with an annular grooves for interacting with a switch and an elastic element partially located in one of the annular grooves k (p, while the electromagnets are worn Measles are mounted on the pusher and electrically connected to the crane control circuit. FIG.