SU1729997A1 - Device for engaging articles with cavity - Google Patents

Abstract

The invention relates to the field of lifting and handling equipment, in particular, to load handling devices. The purpose of the invention is to increase the reliability of the device. The device contains a spacer rod 1, a two-armed lever 2 with a protrusion 11, a two-armed dog 7 with a counterweight 8 and with protrusions 9 and 10. When using the device, the lever 2 is lowered until the projections 9 and 11 are engaged. The dog 7 is brought into a vertical position, the product is raised and transported. At the end of the transport, the lever 2 is lowered until the projections 9 and 11 are engaged, and the device is removed from the cavity of the product. 2 Il.

Description

The invention relates to a lifting machinery, in particular to the lifting devices for products with a cavity.

It is known to provide a device with a cavity for holding a spacing rod with pads for engagement with the end face of the product and an element at one end for interacting with the side surface of the cavity of the product pivotally connected to the second end of the spacing rod with the possibility of rotating in the vertical plane the double arm , one shoulder of which is made with an element for interacting with the side surface of the product, and the second shoulder is kinematically connected with a hook of a hoisting machine, and a latch relative position spacer bars and the double-arm lever.

The disadvantages of the known device include the possibility of wedging the paws in the cavity of the product when removing the device from the cavity due to its extracentral suspension when performing this operation. In addition, the design of the retainer of the relative position of the spacer elements allows it to be activated during the lifting operation. All this leads to a decrease in the reliability of the device.

The aim of the invention is to increase the reliability of the device.

The goal is achieved by the fact that in a known gripping device for a product with a cavity containing a spacer rod with pads for engagement with the end of the product and an element at one end for interacting with the side surface of the product cavity pivotally connected to the second end of the spacer rod can be rotated in a vertical plane. a double-shouldered lever, one shoulder of which is made with an element for interacting with the side surface of the product, and the second shoulder is kinematically connected with a hook of a hoisting machine, and a clamp the relative position of the spacer rod and the two shoulders lever, the latch includes a hinge connected to the spacer rod with the possibility of limited rotation in the plane of rotation of the two shoulders lever two shoulder dogs, one shoulder of which is made with a counterweight, and the second with two protrusions, and performed on the second shoulder of the two arms the protrusion for interacting with the protrusions of the two shoulders of the dog.

FIG. 1 shows a gripping device, general view, section; in fig. 2 - the same, top view.

The gripping device for a product with a cavity contains an expansion rod 1 and a double-arm lever 2, articulated by an axis 3. The expansion rod 1 is provided with pads 4 and 5. On the rod, using an axis 6, a two shoulder 7 and a counterweight 8 and protrusions 9 and 10 interacting a protrusion 11 made on the lever 2. A brace 12 is fixed on the spacer bar 1, restricting the opening of the lever 2 when the empty device is lifted. The rod 1 has a finger 13 installed, limiting the rotation of the pawl 7 under the action of the counterweight 8. One arm of the lever 2 is designed as an eccentric 14 interacting with the product, and the second shoulder is made with an element 15 for kinematically connecting the device with a lifting machine.

Work with a gripping device as follows.

The lever 2 is lowered into the cavity of the expansion rod 1 so that the dog 7 with the projection 9 engages with the projection 11. For the element 15, the device is lifted and lowered into the vertical cavity of the captured product, for example the rim of a railway wheel. After loosening the element 15 after installing the rod 1 with the pads 4 and 5 on the product shoulder, the dog 7 is turned over clockwise (Fig. 1) with the counterweight 8 to the lever 2. Lift the element 15. The protrusion 11 of the lever 2, acting on the protrusion 10, turns the dog 7 is back and, when it engages with it, it turns on axis 3 until the cam 14 of the lever 2 stops against the body of the product. In this case, the expansion rod 1 with the opposite end in the opposite direction also abuts against the body of the article being captured. Upon further elevation, a friction coupling is created between the elements of the gripping device and the surface of the cavity of the product, ensuring reliable adhesion of the device with the product. Having transferred the product to its destination, it is lowered onto a horizontal surface, and the lever 2 is lowered into the cavity of the rod 1 until the protrusion 9 of the pawl 7 with the protrusion 11 of the lever 2 engages. With a new lift, the device 15 is removed from the product cavity to grip the next product.

Claims (1)

Invention Formula A cavity device with a spacing rod with pads for engagement with the end of the product and with an element at one end for interacting with the side surface of the product cavity, pivotally connected to the second end of the spacer rod with the possibility of rotating in the vertical plane of the double-arm lever, one shoulder of which made with an element for interacting with the side surface of the product cavity, and the second arm is kinematically connected with the hook of the hoist, and the relative position lock a spacer rod and a two-arm lever, characterized in that, in order to increase reliability, said retainer includes A double-sided pawl, one shoulder of which is made with a counterweight, and the second shoulder with two protrusions, and a protrusion made on the second shoulder of the two-armed lever for interacting with the protrusions of the double-shouldered doggie, which is pivotally connected with a spacer rod with the possibility of limited rotation FIG. Z