SU1240725A1 - Crane anticreeper device - Google Patents

Description

This invention relates to a lifting and transport machinery industry and can be used in lifting cranes, in particular in gantry cranes.

The purpose of the invention is to simplify the design and improve ease of use.

FIG. 1 shows an anti-theft device, a general view; figure 2 - section aa in figure 1; in FIG. 3, view B in FIG. one; figure 4 is a view In figure 1.

The anti-theft device of the crane contains the frame 1, in the guide slot 2 of which is located the finger 3, with which the lever 4 is fixedly connected. The latter has two fixed clamping jaws 5 located on both sides of the rail 6 with a small clearance and rests on the rail 6c roller 7. The mechanism for locking the lever in its non-working position includes a rod 9 connected to the control cable 8, which is located in the cavity and the opening of the frame 1 formed by a tube 10 fixedly mounted on the opposite side of the guide slot 2 on the opposite side of the slot. Hb 9 is biased relative to the frame 1 by a spring 11 and its lower end is in the guide groove 12 formed on the fixed Rych; src 4 plates 13.

The lengths of the guide slot 2 and the guide groove 12 are equal.

The device works as follows.

When the crane is operating lever 4, leaning roller 7 on the rail 6 and holding your finger

five

0

Cement 3 on frame 1 is moved along the rail. The rod 9 at the same time is in the guiding groove 12 formed by the plates 13 on the lever 4 and keeps the lever from turning around the axis of the finger 3.

When the undercarriage is displaced relative to the axis of the rail b, the finger 3 moves in the guide slot 2 of the frame 1, and the rod 9 moves in the guide groove 12 of the lever 4.

To bring the device into working position, the rod 9 is raised by means of the control cable 8 and locked in this position, while the spring 11 is compressed.

With the possible movement of the crane by the wind, the finger 3, moving together with the crane, rotates the lever 4 in a horizontal plane and fixed clamping jaws 5 clamp the rail head 6. The clamping force of the rail head is directly proportional to the force of the wind.

To return the device to its original position, the control cable 8 is loosened and the rod 9 under the action of its own weight and the force of the spring 11 is lowered, after which the valve is moved to the opposite direction of the hijacking. The lever 4 rotates in the opposite direction around the axis of the finger 3 and the rod 9, moving along the plate 13, falls into the guide groove 12.

A - / I

Phi. 2

In id 6

YU

fig.Z

Type B

 G, “MShg

Compiled by O. Kuzmina

Editor I. Segl NikTechred I. VeresKorrektor M. Samborska

Order 3450/18 Circulation 799 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

. if

Claims (1)

AN Anti-theft device of the CRANE, containing a frame pivotally connected to it with a finger with the possibility of rotation in the horizontal plane, a lever made with two fixed clamping jaws, and a mechanism for fixing the lever in the idle position, characterized in that, in order to simplify the design and increase ease of use , the lever locking mechanism in the idle position contains a spring-loaded rod with a control cable fixed to it, the lever is rigidly connected to the finger and is made with a guide groove for the spring ennogo rod, and the frame is formed on one side with an opening and a cavity for placement of a spring-loaded rod, on the other hand - to the guide slot for a finger, wherein the guide slot in the frame and a guide slot formed in the arm of equal length. FIG. / SU ₍₁ „1240725