RU2587185C1 - Cross-arm lever with adjustable clamps - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to handling equipment, specifically to cargo cross-arms. Cross-arm lever consists of cross-arm body, to which are welded two transport lugs for attachment to hook suspensions of hoisting devices. To cross-arm body are symmetrically welded two hoisting units, each of which consists of a wall and an end wall. On each gripping assembly on wall and wall end on bolt joints is fixed a sleeve. To bushing on bolt joints is arranged retainer body accommodating spring-loaded retainer with thrust spherical surface and pressed cover. Inside retainer housing passes an axis, on which one end is equipped with a large lever handle. Other large end of lever is articulated with two small axis levers, which in turn, with their other ends are fixed for slide by semi-axes symmetrically pressed therein. Also, a pin is welded to bushing with limiter.

EFFECT: higher functional capabilities of cross-arm.

1 cl, 4 dwg

Description

The invention relates to lifting and handling equipment, in particular to cargo traverses intended for loading (unloading) aircraft launchers or ejection systems, but can also be used for loading (unloading) of products having lateral rigging grooves of various shapes.

Known load gripping device according to copyright certificate SU No. 11705225 A1 (B66C 1/62, 1989). The known device comprises a carrier element connected with the lifting mechanism, made with guides for the load, gripping bodies including two-arm levers located crosswise and in pairs connected with the ends of the carrier element and between themselves by means of horizontal axes, and a mechanism for controlling them. The latter includes a movable element located on the supporting element, on which hinge rods are connected at one end, connected at the other ends with two-arm levers. The connection of the second ends of the rods with two-arm levers is a rod, articulated at one end on the upper shoulders of the two-arm levers, and the other through horizontal fingers connected with each other and with the supporting element. In this case, the supporting element is made with vertical grooves in which the horizontal axes of the two-arm levers are located. The movable body is made in the form of a beam located in a vertical plane and pivotally mounted on a supporting element. A lever with a lock is fixed on the axis of the moving body. The supporting element is connected to the lifting mechanism by ropes through the block. In the inoperative state, the two-arm levers of the gripping body are open, and their horizontal axes are located at the upper point of the groove, which is ensured by the horizontal arrangement of the lever fixed to the axis of the movable organ, which holds the latch and blocks movement in the two-arm lever control mechanism.

A disadvantage of the known device is that its functionality is limited only by loading (unloading) of rail links. In addition, the device requires a relatively long time for docking (undocking) with lifting equipment and increases the deployment time of the crane at the place of work.

The closest set of essential features with the claimed invention is a cargo beam containing a frame including longitudinal and transverse beams, a housing in which a means of communication with the body of the lifting device is installed, and load gripping devices pivotally mounted on the frame (copyright certificate SU No. 619436 A, B66C, 1/68, 1978).

However, the known cargo beam, as well as the above device, has limited functionality.

The aim of the present invention is to eliminate these drawbacks and create a traverse lever with sliding grips, allowing loading (unloading) of aircraft launchers or catapults, as well as products having lateral rigging grooves of various shapes.

This goal is achieved by the fact that the proposed crosshead is equipped with sliding grips, the end of which have the ability to go into the lateral rigging grooves of the products, which allows you to perform lifting and transport operations with them.

A general view of the lever beam with sliding arms is shown in FIG. one.

The proposed yoke consists of a body of the yoke 1, to which two transport ears 2 are welded for attachment to lifting hook hooks. Also, two load gripping units are symmetrically welded to the traverse body, each of which consists of wall 3 and end wall 4. On each gripping unit on the wall and end wall, bolt 5 is attached to bolted connections. The stopper body 6 is located on the bolt 5 on bolted connections, inside which has a spring-loaded stopper 7 having a persistent spherical surface and pressed by a cover 8. An axis 19 extends inside the stopper body 6, on which a large lever 9 is placed at one end, which is equipped with a handle 10 for convenience. the end of the large lever is pivotally fixed with two small levers 11 of the axis 19, which, in turn, are secured by the other ends to the slider 12 due to the axle shaft symmetrically pressed into it 20. The slider is wound onto the pin 13, which is welded to the sleeve 5 on one side, and on the other - terminated by a limiter. 14. The slider 12 is able to move freely within the limiter 14 and the sleeve 5 when moving the lever of the large 9. All axes 19 and the half shaft 20 have a cotter pin. A movable gripper 15 is welded to the slider 12 from the lower part, terminated by a boss 17 with an end 18, made under the shape of the rigging groove of the product. A fixed grip 16 is welded to the sleeve 5, which is also terminated by a boss 17 with an end 18. As an example, in FIG. 1, 2, 3, 4 shows the cylindrical shape of the trailer. However, the shape of the limit switches at different ends of the crosshead may differ.

When moving the handle 10, the large lever 9 due to the articulated connection with the small levers 11 and the slider 12 provides translational movement of the slider 12 along the finger 13 and, accordingly, the deflection of the grippers movable 15. At the same time, due to the spring-loaded stopper 7, the locking grippers are movable when the slider 12 is closed .

The principle of operation of the traverse lever with sliding grips is as follows. The traverse, mounted on the hook suspensions of the lifting device, is lowered and inserted into the lateral rigging grooves of the product 21 with the trailer grips fixed (see Fig. 2, 3). In this case, the traverse is in the open position, that is, the large lever is located in the highest possible position (see Fig. 2, 3). Next, the operator by the handle transfers the large lever to the position in which the slider is shifted to the sleeve until it locks (see Fig. 2), that is, the crosshead is moved to the closed position. The indicated actions are performed alternately at both ends of the traverse. After that, the product is ready for lifting by a lifting device (see Fig. 4).

Unloading the product from the crosshead is carried out in the reverse order.

The advantages of the design of the proposed crosshead are:

- simplicity and low weight of the structure;

- ease and safety in operation;

- the possibility of using different lengths of the beam;

- the ability to perform loading and unloading operations manually with products (aircraft launch and ejection systems) with lateral rigging grooves.

Claims (2)

1. Arm traverse with sliding grippers, consisting of a housing and load gripping nodes located on it, characterized in that it is characterized by the presence of two bushings symmetrically attached to the housing of the beam through the walls and end walls, as well as two fixed grippers, each of which has a mount to the sleeve with the ability to enter the trailer placed on it into the lateral rigging groove of the product, and two movable grippers, each of which has the ability to move and enter horizontally placed on it tsevikom in the side groove rigging products, motion capture moving ensured by the kinematic connection of levers large and small levers associated with the slider, providing move along the fingers, having on one side limiter, and on the other hand - the attachment to the hub. 2. The lever traverse with sliding grippers according to claim 1, characterized in that the locking of each large lever in the closed position is provided by a spring-loaded stopper located in the stopper body, which is fastened to the beam body through a sleeve, with the possibility of constant pressure on the large lever in the closed position with its spherical thrust surface, thereby fixing the movable grips, not allowing the ends of the gripper movable from the lateral rigging grooves of the product.

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