SU1381056A1 - Mechanism for retaining the positions of arms of load-engaging device - Google Patents

Abstract

The invention relates to a lifting and transport equipment, in particular to mechanisms for fixing the position of the levers of the load gripping device. The aim of the invention is to increase reliability. The locking mechanism of the rig-iaroB load-carrying device contains the axis 6 of the gear wheel 5, which provides rotation of the sleeve 18 and the gear wheel 5 at a constant angle, which increases reliability. 4 il. (L from 00 ate O5

Description

FIG. 2

The invention relates to a lifting machinery, in particular to mechanisms for fixing the position of the levers of the load gripping device.

The purpose of the invention is higher reliability,

FIG. 1 shows a general view of the lever position fixing mechanism.

In addition to that wheel 5, the doggie A falls into the tooth 11 of the gear 5, preventing its rotation.

When lifting the bar 2, the T-shaped stop 23 freely passes through the slot 7 of the gear wheel 5 and the levers 24 converge. The T-shaped stop 23 is inserted from the internal cavity 9

lifting device, on fi1. th wheels 5,

the mechanism for fixing the open position of the axis 6 in this position under the action of the lever of the load gripping device, fig. 3 is the same, the closed position of the levers of the load gripping device; FIG. 4 - section A-L 15 in FIG. 2

The mechanism for fixing the position of the levers of the gripping device contains a vertical guide 1, a rod 2 installed in it, a gear 5 positioned in it, a gear 5 fixed in place by the pin 3, dog 4, and a gear teeth4. Dog 22 sleeves

By the spring 14 returning to the initial position, with the wake 18, the circumferential axis 6 also turns into the initial position, and the gear wheel 5 remains non-movable at a position where the T-shaped gripper 23 is positioned along the slot 7 of the gear 5, In that

The wheel 5, mounted on the axis 6, is made with a slot 7, a cylindrical G 8 and internally; cavity 9. On the inner bottom r1 (1 the top of the gear wheel 5 is made) 1 additional teeth 10, and the main teeth 11 are made on the outer part 1 of the lower part.

In the guide 1 there is a figurn cover 12 with a cylindrical hole 13 for positioning the axis 6 with a spring-loaded spring 14. The upper part of the cover 12 is made in the form of a hollow cyclical frame 15 with stops 16 and a groove 17 on the inside for the pawl 4. In the bore 8 of the gear the wheel 5 has a sleeve 18 with a finger 19 and a groove 20, and on the side surface of the axis 6 there is an inclined slot 21 for a finger 19. An additional pawl 22 is installed in the groove 20. A T-shaped stop 23 is rigidly fixed to the bottom end of the rod 1.

The gripping device operates as follows.

The mechanism for fixing the position of the levers of the load gripping device operates as follows.

The rod 2 under the action of its own weight is lowered and the T-shaped stop 23 moves the axis 6, compressing the spring 14, while the gear wheel 5 rotates 90 due to the interaction of the finger 19 with the inclined slot 21 of the axis 6 and the additional pawl 22 with the teeth of the 10 gear 5. At the end of the stroke of the axis 6 and, therefore, at the end of the rotation of the gear. The axis 6 in this position under the actual position of the gear 5 is fixed by the pawl 4. The dog 22 of the sleeve

When the spring 14 returns to its original position, the wedge 18 then encompasses the circumferential axis 6 to its original position, and the gear wheel 5 remains fixed in a position where the T-shaped gripper 23 is located along the slot 7 of the gear wheel 5, B by this

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18 at the same time slips onto the next tooth 10 of the gear wheel 5.

After the load is transferred, 5 lowering of the rod 2 takes place, as a result of which the levers 24 are opened, and the T-shaped stop 23 freely passes through the slot 7 of the gear wheel 5 and moves the axis 6, compressing the spring 14. At the same time, the gear wheel 5 turns 90 ° due to the interaction of the finger 19 with the inclined slot 21 of the axis 6.

The slot 7 of the gear wheel 5 will then be located across the T-shaped stop 23.

When the load handling device is removed from the load, the rod 2 is lifted with a T-ring stop 23, which comes into contact with the gear wheel 5, limiting the lift of the rod 2. At the same time, the levers 24 will remain open axis 6 of the sleeve 18 with the pawl 4 will occupy the initial position.

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Claims (1)

Claims The mechanism for fixing the position of the levers of the load gripping device, comprises a vertical guide connected to the carrier frame of the latter, installed therein and kinematically connected with the levers of the load gripping device and the suspension bar, mounted on the respective axes of a gear wheel and spring-loaded dog for interacting with its teeth, characterized in that, in order to increase reliability, the gear wheel axis is made with an inclined slot on the side surface and is spring-loaded in the vertical plane, the gear wheel is made with a slot on the upper end, a cylindrical groove on its lower end, coaxial with its hole for the axis, made on the lower end, and the internal cavity, and additional teeth are made on its inner surface of the lower part, while the main teeth are made on the outer surface of the lower part, and the fixation mechanism is provided with a vertical guide-shaped lid installed at the lower part, in the central lower part of which a cylindrical opening is made to be located in meters of the spring-loaded axis of the gear, the upper part of which is made up of a hollow cylinder installed in the guide for positioning a gear in it with the restraints for it, made in the upper part, and the groove on the inner side, the lower part for the vertical location of the axis of the pawl in it, rigidly attached to a gear wheel mounted in a cylindrical groove on a wheel and a sleeve covering its axis with a rigidly fixed transversely vertical axis on its inside the side surface with a finger to locate the gear wheel in an inclined slot and a groove on the outer side surface installed in the sleeve groove on the vertical axis with the ability to interact with additional gear teeth that are spring-loaded in the horizontal plane with an additional dog rigidly fixed with the lower end of the bar with the possibility of positioning in the slot and the internal cavity of the gear and interacting with the end of its axis with a vertical T-shaped stop. 22 2: 5 % c.4