SU922475A1 - Pusher for moving metal - Google Patents

Description

one

The invention relates to a pusher device with a flexible rod, and more specifically to pusher devices, for example, thermal and smelting furnaces, chemical and washing plants consisting of one or more chambers through which pallets, carts, parts and etc.

Closest to the proposed technical essence and the achieved result is a well-known chain pusher design, containing driven and driving sprockets and a drive. Sprockets are covered by a chain that carries a pusher cart that moves in the guides of the pusher P.

The known pusher has large overall dimensions, a drive with a large gear ratio, designed for a large output torque, since all the force required for pushing is transmitted by one working

branch chain. The large forces on the traction unit (chain) complicate the fixing of all nodes, complicate the tensioning mechanisms of the chain and, in general, the whole structure. In addition, during operation, the chain is pulled out and wears out, thereby making its pitch no longer correspond to the pitch of the sprockets, which leads to additional loads and breakdowns of the pusher.

ten

The purpose of the invention is to reduce the dimensions of the pusher, decrease the metal intensity and increase reliability while maintaining the technical characteristics (pushing force and speed, stroke

15 pusher), a famous chain pusher.

Claims (2)

The goal is achieved by the fact that the pusher containing the frame, in the guides of which the teg 20 moves, the pusher, the drive, the flexible working body, is equipped with 1 polyspasts of the same multiplicity, fixed block holders fixed on the frame and movable on the pusher cart . In addition, the ends of the flexible working body encompass the blocks of the chain hoists, the winch drum and are fixed to the frame by means of tensioning devices. In FIG. 1 shows a pusher, a general view of FIG. 2 is a kinematic diagram of a tension device; in fig. Kinematics pusher scheme (tackles conditionally deployed). Pusher; To move the goods, it consists of 1, in the guides 2 of which the cart-pusher 3 moves on rollers L, winches 5 (for example, hoists with a spire drum) 2 tackles of the same multiplicity, consisting of fixed block holders B and 7 fixed on the frame, and movable block holders 8 and 9, fixed on the pushing car 3 deflecting blocks 10-12, two tensioning devices 13, the rope I, enveloping the blocks of the polyspast, deflecting blocks and the winch spike covering the turns. The ends of the rope are connected to the pusher frame by means of tensioning devices. The tensioning device consists of a spring 15, support plates 16, t g 17 with an emphasis 18, a screw 19, screwed into the yoke 20. The device works as follows. Screws 19 tension the rope and deform the springs 15. The deformation of the springs is limited by stops 18. When the drum of the winch 5 is rotated, one of the branches of the rope is wound on the drum, the traction force developed by the winch is transmitted to one of the pulleys and the tensioner. In the tensioning device, the working force of the rope is transmitted through the glands 17, the stops 18, the screw 19 to the frame 1. The empty branch of the rope is unwound from the drum, and due to the preliminary deformation of the springs 15, the tension of the device 13 is maintained and the tension is constant increase its length while stretching the work branch. The design of the proposed device, as compared with the known, reduces the tensile force of a flexible traction body by P times and increases the speed of movement of the traction body by P times, where P is. the multiplicity of the chain hoist, and consequently, the reduction of the cross section of the traction device, the gear ratio, the output torque of the moment and, the dimensions of the drive, the dimensions and material capacity of the pusher. Due to the fact that the pusher has a rope instead of a chain, and instead of sprockets a drum and blocks, the overrun of the pusher operation increases. Claim 1. Pusher for moving metal, containing frame with guides, pushing carriage, drive and flexible working body, characterized in that, with the aim of reducing size, reducing metal intensity and increasing reliability, it is equipped with power shafts of the same multiplicity, movable block clips which are fixed on the cart-pusher, and stationary - at opposite ends of the frame. 2. A pusher according to claim 1, about tl, which is due to the fact that the ends of the flexible working body encompass the blocks of the chain hoists and the drive drum and are fixed to the frame with the help of tensioning devices. Sources of information taken into account during the examination 1. Drawing number A1-98-00.00.00. Chel binsky PromstroyNIIproekt, Orenburg integrated department, Mint zhstroi USSR. F "/ e. J