SU1729999A1 - Device for engaging railway track lengths - Google Patents

Abstract

Use: The invention relates to grippers with automatic gripping and releasing rail links. The purpose of the invention is to simplify the device and increase its reliability. The essence of the invention: a load gripping device for railway units, comprising a beam, gripping legs 2, 3 hinged at its ends, a mechanism for automatically fixing the cross member 4 with the beam. The gripping paws are connected by a L-shaped lever 15, a knee lever by means of a hinge is fixed on the inside gripping paw, and a long arm is connected by a horizontal hinge to the crosshead 4 connected to the hanging element. Each pair of gripping paws is mounted on a stand 24 and is placed in a holder 26 fixed to a beam at the base of the stand and limiting the opening of the gripping feet. 3 il.

Description

Phie.1

This invention relates to grippers with automatic gripping and releasing of rail members.

The aim of the invention is to simplify the design.

The goal is achieved by the fact that in the load gripping device, which is hung on a hook of a load-lifting device, containing a beam installed across the rails of the gripped link, external and internal gripping paws attached to its ends, a mechanism for guiding and automatically fixing the hanging element with the beam, and lever mechanisms transferring the position of the hanging element to the gripping paws, each lever mechanism consists of an L-shaped lever, with a short shoulder pointing down and through a direct link with hinges at the ends connected with the outer gripping paw, the knee, the lever is fixed to the inner gripping paw with the help of a hinge, and with the long arm through a horizontal plane perpendicular to the gripping rails of the hinge is connected to a crossmember connected to the directional mechanism and automatically fixing the hanging element to the beam , with each pair of gripping paws fastened on a rack and placed in a cage secured to the beam at the base of the rack and limiting the opening of the gripping legs.

FIG. 1 shows a load gripping device, general view; in fig. 2 - the same, side view; in fig. 3 - knot gripping paws with a lever mechanism in the position of the open paws.

The load gripping device for rail links contains a beam 1 installed across the rails of the gripper link, the gripping legs 2 and 3 mounted on it can be rotated, the yoke 4 located above the beam 1 and connected to the latter by means of a directional mechanism and automatically fixed. mechanisms articulated with gripping paws: internal 2 and external 3.

The directional mechanism and automatic fixing, which connects the beam 1 and the yoke 4 to each other, consists of a rod 5, the lower end of a rigidly fixed center of the beam 1, a pipe b freely attached to it, the lower end of a rigidly fixed center of the crossbar 4. Free of a pipe A ring 7 with conic ends is fitted, interacting in the upper part with an internal cone of the conical ring 8 fixed on the top of the pipe 6. Above the pipe 6

the end of the rod 5 is loosely fitted with a glass 9 with its neck, protected from falling down from the rod 5 with its tip 10, interacting with the inner surface of the glass, on the bottom of which element 11 is fixed under the stop or hook of the lifting means. On the glass 9, the hooks 13 are mounted for rotation on the wasps x 12, equipped with counterweights 14, which press the hooks to the center of the device.

The lever mechanisms consist of an L-shaped lever 15, a long arm connected to the end of the bar 4 by means of a finger 16, mounted in a horizontal groove 17 of the bar 4. By a knee the lever 15 is connected by a hinge 18 to the inner gripping paw 2 and a lower short arm through a link 19 and its hinges 20 and 21 are connected to the outer gripping paw 3.

The gripping legs 2 and 3 are made up of a pair and the shanks are fastened by means of pins 22 and 23 in a vertical post 24 of the beam 1, placed in the window 25 of the sleeve 26 fixed on the beam 1 at the base of the stand 24. The length of the window 25 determines the size of the gripping mouth when the legs are open 2 and 3, as well as the lower position of the yoke 4 relative to the beam 1, the beam 1 can be equipped, on the edges, with the stability brackets 27 with guide brackets 28 which interact with the rail heads of the member to be gripped. Brackets 27 with brackets 28 can only be at one end of beam 1.

The device works as follows.

Having disengaged the hooks 13 with the ring 8 of the pipe 6, for the element 11 they lift the device with a lifting means and open mouths between the legs 2 and 3 and the limiting brackets 28 are mounted on the rail heads of the rail being gripped. link. Next, the element 11 with the glass 9 and the hooks 13 is lowered until the hooks 13 with their toes are lowered under the conical ring 8. After this, lifting is again carried out for the element 11, which takes the hooks 13 and adheres to them with the counterweights 14 ring 8, raises traverse 4 until, lifting the large shoulders of the levers 15, turning them on the ax x 18 gripping paws 2, by means of links 19 with hinges 20 and 21 st, there are no gripping paws 2 and 3 on the rail heads. After that, along with the lifting device, the railway also rises. a link, the rails of which are securely clamped between the gripping legs 2 and 3 by a force directly proportional to the mass of the lifted load. This condition eliminates the sliding of the rails in the device at the permissible tilt of the link during lifting and transportation. Brackets 27 with retainer brackets 28 prevent the device from tilting relative to the rail. link.

To release the railway. link from the load gripping device at the place of its installation with a load-lifting device. means lower the element 11 with the glass 9 and the hooks 13 until the last stop in the yoke 4 or the upper end of the rod 5 into the bottom of the glass 9. At the same time, the yoke 4 by means of lever mechanisms, lowering under its own weight, spreads its gripping feet 2 and 3 up to the stop head in the edges of the windows 25 in the cage 26 and hangs on the levers 15. Carry out a new lift for the element 11. Under the influence of counterweights 14 hooks 13, lifting the toes from below, carry the ring 7 upwards along the tube 6. When the ring 7 stops in the conical cavity of the ring 8 hooks 13, breaking the effects of counterweights 14 , deviating, slide off the ring 7. Thus, the hooks 13 bypass the coupling with the ring 8, and the cup 9, with its neck affecting the tip 10 from the bottom, lifts the device by the rod 5 with the paws 2 and 3 divorced (open) from

Hooks 13, the ring 7, after release, falls to its lower initial position. In this state, the device is transferred to the next train. a link for lifting and transporting it.

Claims (1)

Claims of load-bearing device for rail links containing a beam pivotally located at its ends internal and external gripping paws associated with the means for hanging the lifting mechanism on the traverse, the mechanism for fixing the beam relative to the traverse and the kinematic connection of the gripping legs with Traversing, characterized in that, in order to simplify the construction, the kinematic connection of the gripping legs with the traverse includes a link, connected at one end to the external gripping paw of each pair, an L-shaped lever connected by a short arm to the second end of the pull, the apex - to the internal gripping paw, and the long arm through the horizontally movable hinge - to the traverse, with This beam is made in corners with vertical posts on the upper surface and with collars on the bottom, and each pair of gripping paws is located in a corresponding holder and is hingedly attached to a corresponding vertical rack. FIG. I fflw.J