Tension-controllable rope connecting device and design method

A connecting device and rope technology, which is applied in the direction of mechanical equipment, transmission elements or pulley ropes or cables, belts/chains/gears, etc. Control effects for accurate effects

Pending Publication Date: 2021-04-02
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because the cable buckle connection method is easily affected by the tension force, it is not easy to be tensioned

Method used

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  • Tension-controllable rope connecting device and design method
  • Tension-controllable rope connecting device and design method
  • Tension-controllable rope connecting device and design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-5 As shown, a tension controllable rope connection device includes two connection plates 1, two metal buckles 21, a rope 2 and three bolts (including three screws 3 and three nuts 4), two connection plates 1 is provided with a rope hole 12 and three screw 3 holes, the three screw 3 holes are respectively arranged around the rope hole 12, the rope 2 passes through the rope holes 12 of the two connecting plates 1, and the two ends of the rope 2 are folded in half Form ring cord 22 afterward, aluminum buckle is pressed on ring cord 22 through press again, and the diameter of ring cord 22 is greater than the diameter of rope hole 12, passes rope hole 12 as restriction ring cord 22. After the rope 2 circles around the support, the sides of the two connecting plates 1 near the ring rope 22 are connected by three bolts.

[0032] The connecting plate 1 is used to limit and connect the two ends of the rope 2. The connecting plate 1 is made of Q235 steel plate....

Embodiment 2

[0047] Except for the following technical features in this embodiment, other technical features are the same as those of Embodiment 1:

[0048] The rope 2 in this embodiment uses a shape-memory alloy rope instead of a steel wire rope, and the shape-memory alloy has a super recovery ability.

[0049] The metal buckle 21 in this embodiment uses a steel buckle instead of an aluminum buckle, and the strength of the steel buckle is even higher.

[0050] Such as Figure 6 As shown, the number of screw holes 11 on the connecting plate 1 in this embodiment is replaced by two instead of three, and the shape is rectangular instead of triangular.

[0051] The formula of step S2 in the design method of a tension controllable rope 2 connection device in this embodiment is: In the formula, σ is the normal stress of the section of the connecting plate 1; R is the radius of the screw 3; r is the radius of the rope 2; L is the length of the connecting plate 1; b is the width of the connecti...

Embodiment 3

[0053] Except for the following technical features in this embodiment, other technical features are the same as those of Embodiment 1:

[0054] Such as Figure 7 As shown, the number of screw holes 11 of the connecting plate 1 in this embodiment is changed from four to three, and the shape is square instead of triangular.

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Abstract

The invention discloses a tension-controllable rope connecting device. The tension-controllable rope connecting device comprises connecting plates, a metal buckle, a rope and a bolt, the connecting plate is installed on the rope through a rope hole, annular ropes are arranged at the two ends of the rope, the diameter of the annular ropes is larger than that of the rope hole, the metal buckle is installed on the annular ropes, and the surfaces, close to the annular ropes, of the two connecting plates are connected through bolts. According to the tension-controllable rope connecting device and the design method, the annular SMA rope can be unfastened and closed at any time, and the problem that the operation space is insufficient when a rope joint is pressed on site can be solved; the tension stress controllability is good, pre-tensioning of the SMA rope is achieved by tightening a nut, and the control effect is accurate; and the connection stability is good, the joints of the ropes arepressed through a press machine, stability and reliability are achieved, and the SMA ropes cannot slide relatively at the connection points in the tensioning process.

Description

technical field [0001] The invention relates to the field of connection methods of civil engineering, in particular to a tension-controllable rope connection device and a design method. Background technique [0002] As a new type of smart material, shape memory alloy (SMA) has the advantages of large strain, recoverable deformation, extra energy consumption, fatigue resistance, and good corrosion resistance. Shape memory alloy components have good tensile properties, but poor shear and bending properties. Shape memory alloy rods and plates can be joined by bolting methods. However, there is no stable and reliable connection method for shape memory alloy wire and shape memory alloy cable at present. [0003] Easy to slip off, and the tension is uncontrollable. The shape memory alloy cable has poor shear resistance, and the cable volume becomes smaller when it is squeezed, and it is easy to slip. When the tension in the cable gradually increases to a certain value, the sha...

Claims

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Application Information

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IPC IPC(8): F16G11/12F16G11/02
CPCF16G11/12F16G11/02
Inventor 曹飒飒邵晨曦纪泓言
Owner GUANGZHOU UNIVERSITY
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