RU2190570C1 - Flexible member winding off device - Google Patents

Abstract

FIELD: mechanical engineering; materials handling facilities. SUBSTANCE: invention can be used in pulley block systems for winding off flexible members. Said device has frame, sliders with levers provided with centers for mounted drum with flanges. According to invention, frame is furnished with jacks and double-bearing shaft with two brackets fitted on frame. Cross-member is secured on one of brackets. Cross-member is provided with splines for spline connection with levers by means of said sliders, and thread on ends for thread connections fixing the sliders when mounting the drum. Device has double-bearing shaft drive including motor with reduction gear and open gear train whose wheel is secured on other bracket of double-bearing shaft. EFFECT: improved service properties of device owing to provision of possibility of removing elastic stresses at twisting of flexible member in pulley block system. 3 dwg

Description

 The invention relates to lifting and handling equipment, and in particular to devices for winding flexible elements.

 A device for winding flexible elements, containing a coil with a rope, supported through an axis on supports (II Ivashkov. Installation, operation and repair of hoisting-and-transport machines. - M .: Mashinostroenie, 1991, p. 231).

 A disadvantage of the known device for winding flexible elements is a significant expenditure of working time when stocking ropes polyspast systems.

 Closest to the described solution in terms of technical nature and the achieved result is a device for winding flexible elements, containing a frame, a drum with flanges and levers with centers (SU 583834 A, publ. 05.12.1997).

 The disadvantage of this device is the inability to remove the elastic stress of the lay and the great complexity of use during operation.

 The objective of the invention is to relieve the elastic stresses of the lay and improve the operational properties of the device.

 This object is achieved by the fact that in the device for winding flexible elements containing a frame, sliders with levers having centers for installing a drum with flanges, the frame is equipped with jacks and a two-bearing shaft with two consoles mounted on it, one of which has a cross member with splines for spline connection with levers by means of the said sliders and thread at the ends for threaded connections for fixing the sliders when installing the drum, the device is equipped with a double-shaft drive, including an engine with a gearbox and an open gear transmission, the wheel of which is fixed on the other console of the double-shaft.

 From the patent and scientific literature is not known a device for removing the elastic strains of the strands during the stocking of the rope in the sheave system.

 In FIG. 1 shows a device for winding flexible elements, General view; figure 2 - a view of figure 1; figure 3 - node I in figure 1.

 A device for winding flexible elements comprises a frame 1, sliders 2, 3 with levers 4, 5 having centers 6, 7 for installing a drum 8 with flanges 9. The frame is equipped with jacks 10 and a double-shaft 11 mounted on it with two consoles. A cross member 12 is fixed on one console of the shaft 11. The cross member 12 has slots for splined connection with levers 4, 5 by means of sliders 2, 3 and a thread at the ends for threaded connections for fixing the sliders 2, 3 when installing the drum 8. The device is equipped with a drive 13 of the double-shaft 11 comprising an electric motor 14 with a gearbox 15 and an open gear 16, the wheel 17 of which is fixed on another console of the double-shaft 11.

 The device operates as follows.

 Using jacks 10, the centers of the centers 6, 7 are aligned with the axis of the drum 8 with the flanges 9. The centers 6, 7 of the levers 4, 5 are brought into the hole of the drum 8 at the ends with the help of sliders 2, 3 and are fixed with threaded joints. The jacks 10 raise the frame 1 with the drum 8 to a height that ensures its rotation in the vertical plane. In the process of winding the rope from the drum 8 when stocking the chain hoist system, the drive 13 is turned on. The torque from the electric motor 14 through the gearbox 15, the gear wheel 17 of the open gear 16 is transmitted to the double-shaft shaft 11. The cross member 12 with levers 4, 5, sliders 2, 3, centers 6, 7 and the drum 8 begins to rotate relative to the horizontal axis of the double-bearing shaft 11. Using the reversing drive 13, the direction of rotation of the drum is chosen so as to ensure the removal of elastic internal stresses in the rope when it is unwound from the drum and stock in the tackle system. The device is turned on as necessary when it becomes possible to form nodes and loops.

 Steel ropes are prone to torsion with the formation of knots and loops. Manual operations to relieve elastic strains of strands are ineffective and take a lot of working time. The present invention allows to effectively remove the elastic stresses of the lay and facilitates the stocking of the rope in the sheave system. Thus, the goal associated with the removal of the elastic stresses of the lay and the improvement of operational properties, is achieved by the proposed device.

Claims (1)

 A device for winding flexible elements containing a frame, sliders with levers having centers for installing a drum with flanges, characterized in that the frame is equipped with jacks and a two-support shaft mounted on it with two consoles, one of which has a cross member fixed with splines for splined connection with levers by means of the said sliders and threading at the ends for threaded connections for fixing the sliders during the installation of the drum, while the device is equipped with a double-shaft drive, including a gear motor m and open gear wheel which is fixed to the other console two-bearing shaft.

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