SU408972A1 - DEVICE FOR DEFORMATION OF RODS OF ROPES TO ROPES MACHINE - Google Patents

Description

one

The invention relates to the production of steel wire ropes and armored cables, namely to devices for pre-deforming wires or strands when they are rolled into a rope (cable).

A device for deforming the strands of a rope to a rope-raising machine is known, comprising a sleeve rigidly attached to the rotor of the machine and a deformer mounted thereon.

However, such a device has a complex structure and provides a low quality of the ropes to be obtained.

In order to eliminate the above disadvantages in the proposed device, the deformer is made in the form of coaxially covering the sleeve of floating covers.

FIG. 1 shows schematically a proposed device for deforming rope strands, a general view; in fig. 2 shows a section along A- / 1 in FIG. one; on fng. 3 is a section along BB in FIG. one.

In the proposed device, the sleeve / is installed in front of the stitching dies 2 of the rope machine (not shown) and secured to the rotor 3 of the machine by means of a collar 4. Ir 5 5 of the upper side (one of the strands shown for clarity), passage through the distribution washer, mounted on the front of the rotor

machines (not shown in the drawing), are first introduced around the hub / in floating plates 6 and further outside - around the core 7 of the rope.

The device works as follows. After the core 7 and the strand 5 have been drilled into the device and the cable machine is turned on, the rotor 3 with the distribution washer rotates at an angular velocity Q and the exhaust occurs.

of the finished rope in the direction indicated by arrow B. First, the upper winding is wound on the sleeve / in the area of the floating area. NIS 6, where they receive a preliminary deformation and then, in the twisted state, are pulled out from it in the direction of arrow 5, and in dies 2, crimped with them, are laid around the core 7.

The length of the working part of the sleeve / choose so that all wound on her wire

Got a full flexural deformation. For this, the minimum length of the working part of the sleeve should be equal to approximately a quarter of the stride of the rope.

The length of the working part of the sleeve /

This leads to an increase in the resistance of the shaking of the strands 5. To reduce the resistance of the shaking, the working part of the sleeve / has a conical section at the end on the side of the rams 2. To easily remove the sleeve / without removing the core 7 from the machine, the sleeve is detachable and consists of 8 n 9. The deformation of the strand 5 goes as follows. The curved axis of the strand in the rope is equal to, sura k where r is the average lay radius of the strand twist angle, which you cut the stranding step h as follows: from here -tg «1-ftgV, the strand of the strand could be L-lt-tg a But with the usual angles of twist, tg2a < therefore, for simplicity, the proof is to accept 1 +. This leads to such a curve of curvature. From this, it can be seen that, with a constant stride step h, the curvature increases proportionally with increasing radius r of the strand. In the proposed device, the strand hitch hitch 5, both on the sleeve and in the rope, is determined by the ratio of the speed V of the rope stretch to the angular velocity Q of the rotor and remains the same. But the outer radius of the sleeve g in more external radius g of the core of the rope g in g with. Due to this, the curvature of the strands 5 on the sleeve 1 will be greater than their curvature after they are tightened into the rope, which allows the preliminary deformation of the strands. For this, the outer diameter of the sleeve / is chosen such that the wires that are wound around it have a curvature greater than their cable curvature, by the amount of pre-deformation, which ensures the non-twistability of the rope in a free state. The proposed deforming device can be used for the manufacture of non-twist coiled and closed ropes, straight ropes with round flat strands, as well as armored cables. The subject of the invention is a device for deforming a rope strand to a rope machine, comprising a sleeve rigidly mounted on the rotor of the machine and an eformer mounted on it, characterized in that, in order to improve the quality of the products and simplify the design, the deformer is made in the form of floating rods coaxially covering the sleeve .