SU697186A1 - Unit for breaking-up reinforced-concrete articles - Google Patents

Description

I

The invention relates to the field of construction, in particular, to installations for the disposal of waste of precast concrete and can be used to destroy rejected and unfit reinforced concrete structures (parts).

Known devices for the grinding of non-metallic materials containing a frame, a drive and destructive cheeks 1.

These devices are not adapted for crushing materials with metallic inclusions.

Most of all, the proposed invention is an installation for breaking reinforced concrete products, including a base plate, a horizontal feeder and a knife that is installed on the support attached to colitis 2.

The disadvantage of the known installation is low productivity with a large expenditure of power due to static destruction of products due to vertical feed, as well as deformation of the metal reinforcement of the product being destroyed, since the stroke of the destructive knife is burned down before contact with the supporting plate.

The purpose of the present invention is to increase productivity, reduce power costs and avoid deformation of the armature of the product.

The goal is achieved by the fact that in an installation for breaking reinforced concrete products, including a base plate, a horizontal feeder and a demolishing knife mounted on a support attached to the slab, the destroying knife is equipped with self-balancing vibrators and its support is in the form of a portal in which On the elastic supports, one end of the destructive joint is fixed, and the free end of the destructive knife is suspended through elastic shock absorbers to the portal cross member, which is configured for vertical adjustment.

FIG. 1 given the type of installation in axonometry; in fig. 2 - kinematic installation diagram.

Claims (2)

The installation for discharging reinforced concrete products includes a base plate 1 with an iron-36 concrete product 2. In the direction of the base plate 3, a sub-cart trolley 4 is installed, connected by cables 5 with a drive 6 of horizontal feed. To the base plate 1 of the crags 7 portal with the destructive knife 8, which is installed in the portal 7 and — irnirno — on the compact supports 9. The free end of the destructive knife 8 is supported through the elastic aultizers 10 on the crossmember 11, which is by means of screws 12 with the drive 13 vert What noflavf is associated with portal 7.; On top of the destructive knife 8 installed self-balancing vibrators 14 connected by a drive shaft 15 with the main drive 16. The installation works as follows. A reinforced concrete product 2 is mounted on the base plate 1. The horizontal feed drive 6 is turned on and the trolley 4 is fed by the action of the cables 5 moving in direction 3 of the base plate 1 and feeds the reinforced concrete from product 2 under the breaking knife 8. The main drive 16 is turned on and the knife is cut 8, pivotally mounted on aiactic supports 9, and suspended by a free end on plastic supports 10 to the crossbar 11, under the action of a self-balancing vibrator 14 connected to the main drive 16 by the drive shaft 15, the frequency of the latter is set The present force with a certain amplitude. The reinforced concrete product 2 supplied by the feeding carriage 4 under the destructive knife 8 is destroyed, the concrete is separated from the reinforcement. Depending on the dimensions of the product 2, the free end of the destructive knife 8, suspended on elastic amortizers 10 to the crossbar 11, is set to the required height using screws 12 and an actuator 13 mounted on the portal 1. The technical and economic efficiency of the proposed installation as compared to the known prototype consists in ° 1) increase in productivity, since, in contrast to static destruction of a device4 with a prototype, this device is based on the pulse-dynamic effect of a destructive knife with high frequencies oh, leading to intense destruction; 2) reduction of power costs, i.e., increase in efficiency due to the insignificance of moments spent on bringing vibrators and obtaining from the last significant pulse-dynamic destructive forces; 3) elimination of the deformation of the armature of the product, as the proposed device provides for deep-seated rupture through the microcracks in the thickness of the reinforced concrete structure from the impulse din. An apparatus for breaking reinforced concrete products, comprising a base plate, a horizontal feeder and a demolishing knife mounted on a support attached to the plate, characterized in that, in order to increase productivity, reduce power costs and prevent deformation of the reinforcement of the product, the demolishing knife is equipped self-balancing vibrators, and its support is made in the form of a portal, in which one end of the destructive knife is hinged on elastic supports, and the free end of the destructive knife Through anacTwrnbie, shock absorbers to the portal crossbar are made with the possibility of vertical adjustment. Sources of information Taken into consideration during the examination 1. Reference book under the editorship of V. Bakhman. Jib, M., Mashinostroyeye D976, p. 451. 2. Journal of Concrete and Reinforced Concrete, N 12, i976, p. four.