Synchronous wire winding tensioning device

Abstract

The present invention provides a synchronous wire winding device with tensioning function, which relates to the field of transmission control, including a synchronous wire winding transmission device and a spring pulley tensioning device. The synchronous wire winding transmission device includes: a motor, a motor bracket, a lead screw, a drum, a synchronous slide rail, a gear pair, a motor, a coupling, a bearing seat, a bearing, an upper aluminum plate, and a lower aluminum plate; the spring pulley tensioning device includes: a spring and a pulley bracket. It is characterized in that: during the use of the device, the motor drives the rope to realize synchronous non-overlapping winding on the drum, and at the same time, the spring pulley tensioning device can ensure that the rope is always in a tensioned state during the winding process, so as to prevent the rope from detaching from the pulley.

Description

Technical Field

[0001] The invention relates to a winding device which is applied to the field of precise control of rope drive, winds a rope synchronously and non-overlappingly on a drum and has the function of tensioning the rope. Background Art

[0002] In the existing technical applications, there are many fields involving the use of ropes to control the machine to plan the trajectory movement. When the rope is retracted and released, when the drum rolls, the rope slides on the drum surface or overlaps and causes the rope to shake and relax, which in turn affects the size and direction of the control force, reducing the control accuracy of the rope drive. In addition, the performance of the motor determines its rated speed and rated load torque. The load torque of the motor often limits the torque required for the rope drive. In applications that require a larger drive torque, a high-performance motor needs to be selected.

[0003] Summary of the invention

[0004] The purpose of the present invention is to solve at least one aspect of the problems and defects in the prior art. To this end, the purpose of the present invention is to provide a synchronous winding tensioning device, which can ensure that the rope is always in a tensioned state during the driving process, and can achieve uniform winding of the rope onto the winding drum without overlapping, thereby improving the control accuracy.

[0005] The synchronous wire winding tensioning device according to the present invention is composed of two parts: a synchronous wire winding device and a spring pulley tensioning device.

[0006] The synchronous wire winding device includes: a synchronous slide rail 112, a slider 113, an upper aluminum plate 115, a lower aluminum plate 114, a large gear 106, a small gear 107, a bearing seat 101, a bearing 102, a lead screw 103, a T-nut 105, a fixed bracket 104, a winding drum 119, a motor 110, a motor bracket 109, and a coupling 108. The two synchronous slide rails 112 are parallel to each other and connected to the upper aluminum plate 115; the bearing 102 is respectively connected and fixed to the two ends of the lead screw 103 and the winding drum 119 by interference fit; the two bearing seats 101 are respectively fixed on the upper aluminum plate 115 to realize the positioning of the lead screw 103 and the winding drum 119; the motor bracket 109 is used to fix the motor 110; the coupling 108 connects the motor 110 and the lead screw 103; the gear pair realizes the positioning of the lead screw 103 and the winding drum 119 by tightening screws; the top of the fixed bracket 104 is fixed to the T-nut 105 and the bottom is fixed to the lower aluminum plate 114.

[0007] The spring pulley tensioning device comprises: a pulley 118, a pulley bracket 117, and a spring 116. One end of the spring 116 is connected and fixed by the lower aluminum plate 114, and the other end is connected and fixed by the shaft of the pulley 118; the pulley 118 can rotate around its own axis and slide along the slide groove of the pulley bracket 117;

[0008] According to the synchronous wire winding tensioning device of the present invention, the rotation of the lead screw 103 is driven by the motor 110, and the rotation of the lead screw drives the relative movement of the T-nut 105 and the fixed bracket 104. At the same time, the rotation of the winding drum 119 can be realized through the gear pair transmission, so that the winding drum 119 can have axial and circumferential movements during the process of winding the rope, so as to achieve the purpose of uniform winding of the rope without overlapping; at the same time, the rope is led out of the winding drum 119 of the synchronous wire winding device and passes through the spring pulley tensioning device to prevent the motor 110 from causing the rope 120 to relax when changing the rotation direction, so as to ensure that the rope is always in a tensioned state; reduce the influence of the rope relaxation or overlapping winding phenomenon on the size and direction of the control force of the equipment during the control process, improve the control accuracy of the rope drive, and provide a mechanical structure foundation for achieving precise control. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A perspective view showing a tensioning device for synchronous winding of wire according to an embodiment of the present invention

[0010] Figure 2 A perspective view showing a part of the present invention, namely a synchronous winding structure

[0011] Figure 3 , Figure 4 , Figure 5 Showing some important parts of the synchronous winding structure of the present invention DETAILED DESCRIPTION

[0012] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention.

[0013] In the description of the present invention, it should be understood that the terms "center", "up", "down", "middle", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only used to simplify the description of the present invention; in addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying the relative importance of the components; in addition, the terms "installed", "connected" and "connected" that are specially explained in the embodiments should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0014] A synchronous wire winding tensioning device according to an embodiment of the present invention includes: a first synchronous slide rail 112, a second synchronous slide rail 124, an upper aluminum plate 115, a lower aluminum plate 114, a large gear 106, a small gear 107, a first bearing seat 101, a bearing 102, a second bearing seat 121, a lead screw 103, a T-nut 105, a fixed bracket 104, a winding drum 119, a motor 110, a motor bracket 109, a coupling 108, a pulley 118, a pulley bracket 117, and a spring 116.

[0015] like Figure 3 As shown, the arc portion in the middle of the first bearing seat 101 is used to match the outer diameter of the bearing, and the top positioning hole 130 is connected by bolts to achieve the circumferential positioning of the bearing. The centers of the first arc portion 128 and the second arc portion 129 in the middle are located at the same horizontal height and the distance between the two centers is the installation center distance of the gear pair. Figure 2 As shown, the first bearing seat 101 and the second bearing seat 121 are installed at a predetermined distance. By installing them face to face, the movement freedom of the screw 103 and the winding drum 119 can be reduced so that they only have rotational freedom.

[0016] like Figure 4 As shown, there are shoulders 127 at both ends of the winding drum 120, which can play a role in axial positioning when matched with the bearing. In order to facilitate disassembly and not affect the rotation of the bearing, the height of the shoulders 127 cannot exceed the height of the inner ring of the bearing 122.

[0017] like Figure 2 As shown, the lead screw 103 and the matching T-nut 105 are connected to the top of the fixed bracket 104 , and the bottom of the fixed bracket 104 is connected to the lower aluminum plate 114 .

[0018] like Figure 5 As shown, the large gear is positioned axially and circumferentially with the winding drum 120 through set screws, and the function of amplifying the transmitted torque can be achieved by selecting a gear pair with an appropriate transmission ratio.

[0019] like Figure 1As shown, the top of the spring 116 is connected to the rotating shaft of the pulley 118 , and the bottom of the spring is connected to the pulley bracket 117 . The pulley 118 can rotate around its own axis and slide along the slide groove of the pulley bracket 117 .

[0020] like Figure 1 As shown, the rope index out point B on both sides of the spring pulley tensioning device is lower than the rope index out point C on the winding drum and the rope index out point A of the rope driving device, so as to ensure that the spring 116 is in a tensioned state even when the device is not in operation; in addition, the position for fixing the pulley bracket on the lower aluminum plate 114 is movable, and the rope tensioning degree can be adjusted according to the relative position relationship between the tensioning device and the synchronous winding device; the pulley bracket 117 slide groove can also improve the fault tolerance of the control;

[0021] Reference Figure 1 , describing the functional realization of the present invention, the motor 110 rotates through the coupling 109 to drive the lead screw 103 to rotate in the same direction, the lead screw 103 transmits the torque and speed to the winding drum 119 at a certain transmission ratio through the gear pair, and at the same time, the rotation of the lead screw 103 is converted into the horizontal relative movement of the T-nut 105 and the fixed bracket 104. The winding drum 119 has axial and circumferential movements during the process of winding the rope to achieve non-overlapping and uniform winding of the rope; at the same time, the rope is led out to the spring pulley tensioning device through the winding drum 119, and the rope index outlet point B of the tensioning device is lower than the rope index outlet point A on the winding drum 119 and the rope index outlet point C of the rope driving device. The change of tension during the rope driving process will cause the spring pulley to move up and down along the slide groove of the pulley bracket 117 to adjust the spring tension, so that the rope is always in a tensioned state; similarly, when the rotation direction of the motor 110 changes, the spring 116 can adaptively adjust the relative position of the pulley 118 in the slide groove of the pulley bracket 117 according to the change of tension to maintain the tension state of the rope;

[0022] Please note that the rope 120 in one embodiment of the present invention is not limited to the shape of the rope and can be any shape of rope. In this case, the groove on the pulley changes accordingly to adapt to the shape of the rope.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0024] Although the present invention is described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred embodiments of the present invention and should not be construed as limiting the present invention. In addition, any element number in the accompanying drawings should not be construed as limiting the scope of the present invention.

Claims

1. A synchronous wire winding device with tensioning function, through which the functions of rope tensioning and non-overlapping uniform winding can be realized during the rope drive control process, aiming to improve the control accuracy of rope drive; by controlling the rotation of the motor to drive the synchronous wire winding device, the rope can be evenly wound on the winding drum without overlapping, and at the same time, the spring pulley tensioning device can prevent the rope from loosening due to the change of the motor rotation direction; Features: The synchronous wire winding device has: Lead screw: It is driven by a motor to rotate; Fixed bracket: The top is connected and fixed by a T-nut used in conjunction with the lead screw, while the bottom is connected and fixed to the lower base plate; Winding drum: its axis is at the same level as the axis of the lead screw and the two are parallel to each other; Gear pair: It is arranged between the lead screw and the winding drum, and transmits the torque and speed driven by the motor to the winding drum through a certain gear transmission ratio; Bearing seat: used to connect the lead screw and the winding drum. The two ends of the lead screw and the winding drum are respectively connected to corresponding bearings, which can realize the axial and circumferential positioning of the bearings and ensure that the axes of the lead screw and the winding drum are at the same horizontal height and are parallel to each other; Upper aluminum plate: It is used to fix the bearing seat and the motor that provides driving force. At the same time, it is connected to the synchronous slide rail to form a dynamic platform that can move synchronously with the bearing seat and the motor; Synchronous slide rail: It is used to connect the upper aluminum plate so that the upper aluminum plate can slide freely within the limit position range, and the first slide rail and the second slide rail are parallel to each other; The upper aluminum plate can slide between a first extreme position and a second extreme position; the lead screw rotates to drive the winding drum to rotate through the transmission action of the gear pair, and the entire moving platform can be moved within the extreme position range through the fixed bracket. At this time, the winding drum has axial and circumferential movements during the process of winding the rope, and the corresponding rope can be wound onto the winding drum evenly without overlapping; The spring pulley tensioning device comprises: Spring: It is used to tension the rope and it always keeps the rope in tension during the winding process; Pulley bracket: It is used to fix one end of the spring. At the same time, the pulley bracket has a slide groove, which can limit the freedom of movement of the pulley under the action of force; Pulley: Its shaft is connected to the other end of the spring, which enables the pulley to rotate around its own axis and slide along the slide groove; Lower aluminum plate: used to fix the pulley bracket, the synchronous slide rail and the fixing bracket; The gear pair is fixed to the lead screw and the winding drum by means of a set screw, and the rotation speed of the winding drum and the torque provided by the winding wire can be changed by adjusting the transmission ratio; the length of the synchronous slide rail can be adjusted according to the design requirements of different application scenarios, thereby adjusting the limit range of synchronous sliding; The position of the pulley bracket fixed on the lower aluminum plate is movable, and the rope tensioning degree can be adjusted according to the relative position relationship between the tensioning device and the synchronous winding device; the rope index outlet point of the tensioning device is lower than the rope index outlet point on the winding drum and the rope index outlet point of the rope driving device to ensure that the tensioning spring is in a tensioned state even when the equipment is not operating.

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