Method for changing position folding line of movable rail seat on winch screw into straight line

Abstract

The invention relates a method for changing the position folding line of a movable rail seat on a winch screw into a straight line. The method includes: determining the speed ratio of a winding drum and a screw; determining the total length of the straight line on the cable array on the current winding drum according cable diameter sections, wherein the total length of the straight line is the total length of the straight line moved by the movable rail seat; determining the total layers of the cable array wound on the winding drum, and identifying whether the current layer wound on the winding drum is an odd-number layer or an even-number layer; judging the current moving direction of the movable rail seat on the screw according to the parity of the cable array layers on the winding drum, and determining the target displacement of the movable rail seat on the screw. By the method which is simple in calculation and ingenious, the complex reciprocating folding-line movements of the movable rail seat on the screw is changed in the simple straight-line movements, the precise total length of the movement of the movable rail seat on the screw can be obtained conveniently, the calculation precision of the positions of the movable rail seat on the screw is increased effectively, the cable array layers, the screw reversing and whether the winding drum and the screw operate synchronously can be identified, and even and neat winch cable array arrangement is guaranteed.

Description

technical field [0001] The invention relates to a winch, in particular to a method for automatically identifying the running position of the moving rail seat on the winch screw rod, which is applicable to the cable arrays and cable arrays with various diameters on the winch. An electrical automatic cable arrangement system with multi-layered arrays. Background technique [0002] Winch electrical automatic cable removal system, such as figure 1 As shown, it includes a moving rail seat 1, a screw rod 2 and two bases 11, the two bases are installed on the winch, the screw rod 2 is connected between the two bases, and the moving rail seat is installed through a screw nut and a bearing on the screw. A servomotor 3 is installed on a base, and the servomotor 3 is connected with the screw mandrel 2, and a limit switch is respectively arranged at both ends of the screw mandrel. A screw encoder 5 is installed on the shaft side of the servo motor, and a drum encoder is installed on ...

AI Technical Summary

Problems solved by technology

The position of the moving rail seat on the screw rod is an important parameter to realize the neat and orderly cable arrangement of the winch and the synchronous operation of the reel and the screw rod. The moving rail seat moves back and forth on the screw rod, and its motion trajectory is equal in plane coordinates. The polyline, if considered layered and segmented, the calculation process is complicated

There are different processing methods for winches with different functions. The moving distance of the moving rail seat on the screw rod of some winches and the diameter of the cable are fixed by one or several pitches, or a proportional relationship is fixed, but this kind of winch is only suitable for one arrangement. Cables with smaller diameters are more inconvenient to operate

There is also a "cable discharge device that can discharge cables with variable diameters and measure tension". A three-roller device is designed on the winch moving rail seat, and encoders, sensors, amplification devices, etc. are used to detect cable diameter, rope length and rope speed. , to determine the pitch of the cable and the synchronous speed of the screw and the reel, but the structure is complex, which not only increases the number of hardware, but also increases the space requirements of the equipment, and also increases the design and production costs.

In the case of limited space and too many detection components cannot be installed, for a winch that needs to wind cables with various diameters on a cable array, it is necessary to know the number of layers of the cable array and the reversing position of the screw to ensure that the drum and It is difficult to use the above method to realize the synchronous operation of the screw rods (or the synchronous operation of the master and slave machines) and to arrange the cable array evenly and neatly.

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